/* ============================================================
   Impacta Design System — web fonts
   Real @font-face for the families referenced by the type tokens
   (--font-primary: Ubuntu, --font-mono: Ubuntu Mono).
   Hosted woff2 from Google Fonts (Ubuntu Font Licence, open source).
   Replace these src URLs with locally-uploaded files when available.
   ============================================================ */

/* ---------- Ubuntu (sans) ---------- */
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/ubuntu-700.woff2") format("woff2");
}

/* ---------- Ubuntu Mono ---------- */
@font-face {
  font-family: "Ubuntu Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/ubuntu-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/ubuntu-mono-700.woff2") format("woff2");
}


/* Impacta Design System · tokens */
:root {
  /* Primary */
  --imp-tech:      #030200;
  --imp-white:     #FFFFFF;
  --imp-blue:      #0A88F4;

  /* Secondary */
  --imp-deep:      #00011E;
  --imp-lime:      #C3EB1E;
  --imp-orange:    #FF7A00;

  /* Tertiary */
  --imp-graphite:  #272727;
  --imp-offwhite:  #F3F3F3;
  --imp-gray:      #808080;

  /* Surfaces (derived for product) */
  --surface-0:     #030200;
  --surface-1:     #0a0a0a;
  --surface-2:     #141414;
  --surface-3:     #1d1d1d;
  --surface-line:  rgba(255,255,255,.08);
  --surface-line-strong: rgba(255,255,255,.16);

  /* Text */
  --text-primary:  #FFFFFF;
  --text-secondary:#C8C8C8;
  --text-tertiary: #808080;
  --text-on-light: #030200;

  /* Status */
  --ok:    #3ECC8F;
  --warn:  #FFB020;
  --err:   #FF4D4D;

  /* Spacing — base 4 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Radii */
  --radius-0: 0;
  --radius-1: 2px;
  --radius-2: 4px;
  --radius-3: 8px;
  --radius-pill: 999px;

  /* Type */
  --font-primary: "Ubuntu", Arial, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "Ubuntu Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --type-display:  72px;
  --type-h1:       48px;
  --type-h2:       36px;
  --type-h3:       28px;
  --type-h4:       20px;
  --type-body:     16px;
  --type-sm:       14px;
  --type-eyebrow:  12px;

  /* Layout */
  --nav-w: 260px;
  --content-max: 1180px;

  /* Elevation */
  --elev-1: 0 1px 0 rgba(255,255,255,.06), 0 8px 24px rgba(0,0,0,.4);
  --elev-2: 0 1px 0 rgba(255,255,255,.08), 0 16px 40px rgba(0,0,0,.6);
  --elev-glow: 0 0 0 1px rgba(10,136,244,.4), 0 0 24px rgba(10,136,244,.25);
}


/* Base · reset & layout */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--imp-tech); }
body {
  font-family: var(--font-primary);
  font-size: var(--type-body);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--imp-tech);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* layout */
.skip {
  position: absolute; top: -100px; left: 0; padding: 8px 12px;
  background: var(--imp-blue); color: #fff; z-index: 1000;
}
.skip:focus { top: 0; }

.main {
  margin-left: var(--nav-w);
  min-height: 100vh;
  padding: 0;
}

/* SIDEBAR */
.nav {
  position: fixed; inset: 0 auto 0 0;
  width: var(--nav-w);
  background: #050505;
  border-right: 1px solid var(--surface-line);
  display: flex; flex-direction: column;
  padding: 28px 0 16px;
  overflow-y: auto;
  z-index: 50;
}
.nav__brand { padding: 0 24px 24px; border-bottom: 1px solid var(--surface-line); }
.nav__logo { width: 130px; height: auto; color: #fff; display: block; }
.nav__sub {
  margin-top: 10px;
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  display: flex; align-items: center; gap: 8px;
}
.nav__ver {
  color: var(--imp-blue);
  border: 1px solid rgba(10,136,244,.3);
  padding: 1px 6px;
  letter-spacing: .1em;
}
.nav__menu { padding: 16px 12px; flex: 1; }
.nav__group {
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 16px 12px 6px;
}
.nav__link {
  display: block;
  padding: 7px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  border-left: 2px solid transparent;
  transition: color .15s ease, background .15s ease, border-color .15s ease;
}
.nav__link:hover { color: var(--text-primary); background: rgba(255,255,255,.03); }
.nav__link.is-active {
  color: #fff;
  border-left-color: var(--imp-blue);
  background: rgba(10,136,244,.08);
}
.nav__foot {
  border-top: 1px solid var(--surface-line);
  padding: 12px 24px;
  font-size: 11px;
  color: var(--text-tertiary);
}
.nav__foot-row { display: flex; justify-content: space-between; padding: 3px 0; }

/* HERO */
.hero {
  position: relative;
  padding: 120px var(--space-7) 96px;
  border-bottom: 1px solid var(--surface-line);
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__bg svg:first-child { width: 100%; height: 100%; }
.hero__a {
  position: absolute;
  right: -80px; bottom: -120px;
  width: 600px; height: 600px;
  color: rgba(255,255,255,.04);
}
.hero__inner { position: relative; max-width: var(--content-max); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: var(--type-eyebrow);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--imp-blue);
  font-weight: 500;
}
.eyebrow__rule {
  display: inline-block; width: 32px; height: 1px;
  background: currentColor; opacity: .5;
}
.hero__title {
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1; letter-spacing: -.02em; font-weight: 700;
  margin: 18px 0 24px;
  max-width: 18ch;
}
.hero__title em { color: var(--imp-blue); font-style: normal; }
.hero__lede {
  font-size: 19px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 64ch;
  margin: 0 0 32px;
}
.hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 56px; }
.chip {
  display: inline-flex; align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--surface-line-strong);
  font-size: 12px; letter-spacing: .04em;
  color: var(--text-secondary);
  border-radius: var(--radius-1);
}
.hero__stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding-top: 32px;
  border-top: 1px solid var(--surface-line);
}
.stat__num {
  font-size: 44px; font-weight: 700; letter-spacing: -.02em;
  color: var(--imp-blue);
}
.stat__label {
  font-size: 13px; color: var(--text-secondary);
  margin-top: 4px;
}

/* SECTION */
.section {
  padding: var(--space-9) var(--space-7);
  border-bottom: 1px solid var(--surface-line);
  max-width: calc(var(--content-max) + var(--space-7) * 2);
}
.section__head {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
  align-items: start;
}
.section__num {
  font-family: var(--font-mono);
  font-size: 14px; letter-spacing: .1em;
  color: var(--imp-blue);
  padding-top: 8px;
  border-top: 2px solid var(--imp-blue);
  width: 60px;
}
.kicker {
  font-size: var(--type-eyebrow);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 8px;
}
.section__title {
  font-size: var(--type-h1);
  line-height: 1.05; letter-spacing: -.015em;
  font-weight: 700;
  margin: 0 0 12px;
}
.section__desc {
  font-size: 17px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 64ch; margin: 0;
}
.section__caption {
  margin-top: var(--space-6);
  font-size: 14px; color: var(--text-secondary);
  max-width: 70ch;
}
.subhead {
  font-size: 14px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-secondary);
  margin: var(--space-7) 0 var(--space-4);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--surface-line);
}
.subhead--tight { margin-top: 0; }
.subhead__hint {
  text-transform: none; letter-spacing: 0;
  color: var(--text-tertiary);
  font-weight: 400;
  margin-left: 6px;
}

/* FOOTER */
.foot {
  padding: var(--space-8) var(--space-7) var(--space-6);
  border-top: 1px solid var(--surface-line);
  background: #050505;
}
.foot__brand {
  display: flex; align-items: center; gap: 16px;
  color: var(--text-tertiary);
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--surface-line);
}
.foot__cols {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) 0;
}
.foot__cols h5 {
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary); margin: 0 0 12px; font-weight: 500;
}
.foot__cols a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
}
.foot__cols a:hover { color: #fff; }
.foot__copy {
  font-size: 12px; color: var(--text-tertiary);
  padding-top: var(--space-5);
  border-top: 1px solid var(--surface-line);
}

@media (max-width: 1024px) {
  .nav { transform: translateX(-100%); }
  .main { margin-left: 0; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .foot__cols { grid-template-columns: repeat(2, 1fr); }
}


/* Components */

/* PRINCIPLES */
.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--surface-line);
  border: 1px solid var(--surface-line);
}
.principle {
  background: var(--imp-tech);
  padding: var(--space-6);
}
.principle__num {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .15em;
  color: var(--imp-blue);
  margin-bottom: var(--space-4);
}
.principle h3 {
  font-size: 22px; font-weight: 500;
  margin: 0 0 12px;
}
.principle p {
  margin: 0; color: var(--text-secondary); font-size: 15px;
}

/* BRAND */
.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.brand-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-6);
}
.brand-card--accent {
  background: var(--imp-blue);
  color: #fff;
  border-color: var(--imp-blue);
}
.brand-card--accent .brand-card__label { color: rgba(255,255,255,.85); }
.brand-card__label {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue);
  margin-bottom: 16px;
  font-weight: 500;
}
.brand-card p { margin: 0; font-size: 18px; line-height: 1.45; }

.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.value {
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}
.value__bar {
  width: 32px; height: 3px;
  background: var(--imp-blue);
  margin-bottom: var(--space-3);
}
.value h4 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.value p { margin: 0; font-size: 14px; color: var(--text-secondary); }

.positioning {
  background: linear-gradient(135deg, var(--imp-deep), var(--imp-tech));
  border: 1px solid var(--surface-line);
  padding: var(--space-8) var(--space-7);
  position: relative;
}
.positioning__quote {
  max-width: 60ch;
  font-size: 28px; line-height: 1.35;
  font-weight: 500;
}
.positioning__quote p { margin: 8px 0; }
.quote-mark {
  font-family: Georgia, serif;
  font-size: 64px; line-height: 1;
  color: var(--imp-blue);
  display: inline-block;
  vertical-align: -16px;
}
.quote-mark--end { float: right; }
.positioning__label {
  position: absolute; top: var(--space-5); right: var(--space-6);
  font-size: 11px; letter-spacing: .2em;
  color: var(--text-tertiary);
}

/* VOICE */
.voice {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.voice__card {
  position: relative;
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  overflow: hidden;
}
.voice__letter {
  position: absolute;
  top: -20px; right: -10px;
  font-size: 200px; font-weight: 700;
  color: rgba(10,136,244,.07);
  line-height: 1;
  pointer-events: none;
}
.voice__card h3 { margin: 0 0 8px; font-size: 22px; font-weight: 500; position: relative; }
.voice__card p { margin: 0; color: var(--text-secondary); position: relative; }

.voice-examples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin: var(--space-6) 0;
}
.voice-example {
  position: relative;
  padding: var(--space-7) var(--space-6) var(--space-6);
  background: var(--surface-1);
  border: 1px dashed var(--surface-line-strong);
}
.voice-example__label {
  position: absolute; top: 16px; left: 24px;
  font-size: 10px; letter-spacing: .2em;
  color: var(--text-tertiary);
}
.voice-example .quote-mark {
  position: absolute; top: 24px; right: 24px;
  font-size: 56px; color: rgba(255,255,255,.18);
}
.voice-example p {
  margin: 16px 0 0;
  font-style: italic;
  font-size: 15px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 44ch;
}

.dodont {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.dodont__col {
  padding: var(--space-5);
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
}
.dodont__col--do { border-left: 3px solid var(--ok); }
.dodont__col--dont { border-left: 3px solid var(--err); }
.dodont__head {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .2em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.tick { color: var(--ok); font-weight: 700; }
.cross { color: var(--err); font-weight: 700; }
.dodont__col ul { margin: 0; padding-left: 18px; }
.dodont__col li { padding: 6px 0; color: var(--text-secondary); font-size: 14px; }

/* AUDIENCE */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.audience__card {
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  position: relative;
}
.audience__num {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--imp-blue);
  letter-spacing: .15em;
  margin-bottom: 12px;
}
.audience__card h3 { margin: 0 0 8px; font-size: 20px; font-weight: 500; }
.audience__card p { margin: 0 0 16px; color: var(--text-secondary); font-size: 14px; }
.audience__tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* SWATCHES */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.swatch {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  display: grid;
  grid-template-rows: 200px auto;
  overflow: hidden;
}
.swatch--lg { grid-template-rows: 220px auto; }
.swatch--sm { grid-template-rows: 120px auto; }
.swatch__chip {
  background: var(--bg);
  position: relative;
}
.swatch__chip::after {
  content: "";
  position: absolute; left: 16px; bottom: 16px;
  width: 16px; height: 16px;
  border: 1px solid var(--fg);
  opacity: .35;
}
.swatch__meta { padding: var(--space-5); }
.swatch__name { font-size: 18px; font-weight: 500; margin-bottom: 4px; }
.swatch__token {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--imp-blue);
  letter-spacing: .05em;
  margin-bottom: 12px;
}
.swatch__values { list-style: none; padding: 0; margin: 0 0 12px; }
.swatch__values li {
  display: grid; grid-template-columns: 50px 1fr;
  gap: 10px;
  font-size: 12px;
  padding: 3px 0;
}
.swatch__values span {
  color: var(--text-tertiary);
  letter-spacing: .1em;
}
.swatch__values code {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 12px;
}
.swatch__use {
  margin: 12px 0 0;
  font-size: 12px; line-height: 1.5;
  color: var(--text-tertiary);
  padding-top: 12px;
  border-top: 1px solid var(--surface-line);
}

/* PROPORTION */
.proportion { margin-bottom: var(--space-6); }
.proportion__bar {
  display: flex;
  height: 240px;
  border: 1px solid var(--surface-line);
}
.proportion__seg {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-5);
  text-align: center;
}
.proportion__big { font-size: 56px; font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.proportion__lbl { font-size: 11px; letter-spacing: .2em; margin-top: 8px; opacity: .7; }
.proportion__sub { font-size: 13px; margin-top: 4px; opacity: .8; }
.proportion__caption {
  font-size: 12px; color: var(--text-tertiary);
  margin-top: 12px;
}

/* BRAND COLOR TABLE */
.brand-color-table {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
}
.bct__row {
  display: grid;
  grid-template-columns: 2.2fr repeat(5, 1fr);
  align-items: center;
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--surface-line);
}
.bct__row:last-child { border-bottom: none; }
.bct__row--head {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--surface-2);
}
.bct__row > span:first-child { font-weight: 500; color: var(--text-primary); }
.bct__cell {
  width: 28px; height: 28px;
  border: 1px solid var(--surface-line);
  background: transparent;
  position: relative;
}
.bct__cell[data-on="1"] { background: var(--c); border-color: rgba(255,255,255,.2); }

/* TYPE */
.type-hero {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-6);
}
.type-hero__big {
  font-size: 240px; font-weight: 700;
  line-height: .85; letter-spacing: -.04em;
  color: #fff;
}
.type-hero__name {
  font-size: 14px; letter-spacing: .25em;
  color: var(--imp-blue);
  margin-bottom: 16px;
}
.type-hero__weights {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 20px;
}
.type-hero__weights span {
  display: inline-flex; padding: 4px 10px;
  font-size: 12px;
  border: 1px solid var(--surface-line-strong);
  color: var(--text-secondary);
}
.type-hero__weights span:nth-child(1) { font-weight: 300; }
.type-hero__weights span:nth-child(2) { font-weight: 400; }
.type-hero__weights span:nth-child(3) { font-weight: 500; }
.type-hero__weights span:nth-child(4) { font-weight: 700; }
.type-hero__copy {
  font-size: 15px; line-height: 1.6;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 0 24px;
}
.type-hero__fallback {
  display: flex; align-items: baseline; gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}
.type-hero__fb-label {
  font-size: 10px; letter-spacing: .2em; color: var(--text-tertiary);
}
.type-hero__fb-name {
  font-family: Arial, sans-serif;
  font-size: 14px;
}

.type-scale {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  margin-bottom: var(--space-6);
}
.type-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  padding: var(--space-5);
  border-bottom: 1px solid var(--surface-line);
  gap: var(--space-5);
}
.type-row:last-child { border-bottom: none; }
.type-row__sample {
  text-align: center;
  color: #fff;
}
.type-row__name { font-size: 16px; font-weight: 500; }
.type-row__token {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--imp-blue);
  margin: 4px 0 6px;
}
.type-row__use { font-size: 13px; color: var(--text-tertiary); }

.type-applications {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-7);
}

/* SPACING */
.spacing {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-6);
}
.spacing__row {
  display: grid;
  grid-template-columns: 140px 80px 1fr;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--surface-line);
  font-size: 13px;
}
.spacing__row:last-child { border-bottom: none; }
.spacing__token {
  font-family: var(--font-mono);
  color: var(--imp-blue);
}
.spacing__val { color: var(--text-secondary); }
.spacing__viz {
  height: 24px;
  background: var(--imp-blue);
}

.grid-demo {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  padding: var(--space-6);
}
.grid-demo__cols {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  height: 200px;
  margin-bottom: var(--space-5);
}
.grid-demo__cols span {
  background: rgba(10,136,244,.12);
  border-top: 2px solid var(--imp-blue);
}
.grid-demo__legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--surface-line);
}
.grid-demo__legend > div { display: flex; flex-direction: column; gap: 4px; }
.grid-demo__legend span {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-tertiary);
}
.grid-demo__legend code {
  font-family: var(--font-mono);
  color: #fff;
  font-size: 14px;
}

/* RADII */
.radii {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.radii__item {
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  text-align: center;
}
.radii__shape {
  width: 80px; height: 80px;
  background: var(--imp-blue);
  margin: 0 auto var(--space-4);
}
.radii__name {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--imp-blue);
}
.radii__val { font-size: 14px; margin: 4px 0 6px; }
.radii__use { font-size: 12px; color: var(--text-tertiary); }

.elev {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.elev__item {
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  text-align: center;
}
.elev__box {
  width: 100%; height: 100px;
  background: var(--surface-3);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-4);
}
.elev__lbl {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--imp-blue);
}

/* LOGO */
.logo-stage {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line-strong);
  padding: var(--space-9) var(--space-6);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.logo-stage__lockup { width: 360px; height: auto; color: #fff; }
.logo-stage__caption {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--text-tertiary);
}

.logo-vars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.logo-var {
  padding: var(--space-6);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--space-4);
  border: 1px solid var(--surface-line);
  min-height: 140px;
}
.logo-var svg { width: 70%; max-width: 200px; }
.logo-var span {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: rgba(255,255,255,.5);
  mix-blend-mode: difference;
}

.logo-rules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.logo-rule {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}
.logo-rule__head {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue);
  margin-bottom: var(--space-4);
}
.logo-rule__viz {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line-strong);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  min-height: 200px;
  margin-bottom: var(--space-4);
}
.logo-rule__dim {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .15em;
  color: var(--text-tertiary);
}
.logo-rule p { margin: 0; font-size: 13px; color: var(--text-secondary); }

.clear-box {
  position: relative;
  padding: 30px;
  border: 1px dashed rgba(10,136,244,.6);
}
.clear-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(10,136,244,.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,136,244,.15) 1px, transparent 1px);
  background-size: 25px 25px;
}

/* ARCHITECTURE */
.arch-tree {
  background: linear-gradient(180deg, var(--imp-deep), var(--imp-tech));
  border: 1px solid var(--surface-line);
  padding: var(--space-7) var(--space-6);
  margin-bottom: var(--space-5);
}
.arch-tree__master {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  margin-bottom: 24px;
}
.arch-tree__master svg { color: #fff; }
.arch-tree__role {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .2em;
  color: var(--imp-blue);
}
.arch-tree__line {
  width: 1px; height: 32px;
  background: rgba(255,255,255,.2);
  margin: 0 auto;
}
.arch-tree__branches {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  position: relative;
  padding-top: 32px;
}
.arch-tree__branches::before {
  content: "";
  position: absolute;
  top: 0; left: 25%; right: 25%;
  height: 1px;
  background: rgba(255,255,255,.2);
}
.arch-tree__branch {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.arch-tree__sub {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 20px;
  border: 1px solid var(--surface-line-strong);
  background: rgba(0,0,0,.3);
}
.arch-tree__sub svg { width: 100px; color: #fff; }
.arch-tree__sub-label {
  font-size: 14px; font-weight: 500;
  letter-spacing: .05em;
}
.arch-tree__children {
  display: flex; flex-direction: column; gap: 8px;
  padding-left: 24px;
  position: relative;
}
.arch-tree__children::before {
  content: ""; position: absolute;
  top: -8px; bottom: 16px; left: 8px;
  width: 1px; background: rgba(255,255,255,.15);
}
.arch-tree__child {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px;
  background: rgba(0,0,0,.4);
  border-left: 1px solid var(--surface-line);
  position: relative;
}
.arch-tree__child::before {
  content: ""; position: absolute;
  left: -16px; top: 50%;
  width: 16px; height: 1px;
  background: rgba(255,255,255,.15);
}
.arch-tree__child svg { width: 70px; color: #fff; }
.arch-tree__child span {
  font-size: 12px; font-weight: 500;
  letter-spacing: .05em;
}
.arch-tree__pill {
  padding: 2px 6px;
  background: var(--c);
  font-size: 11px;
}

/* ELEMENTS */
.elements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.el-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}
.el-card__viz {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line);
  margin-bottom: var(--space-4);
}
.el-card__viz svg { width: 100%; height: 140px; display: block; }
.el-card__name { font-size: 16px; font-weight: 500; margin-bottom: 4px; }
.el-card p { margin: 0; font-size: 13px; color: var(--text-secondary); }

/* ICONS */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--surface-line);
  border: 1px solid var(--surface-line);
}
.icon-cell {
  background: var(--imp-tech);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: #fff;
}
.icon-cell svg { width: 32px; height: 32px; color: #fff; }
.icon-cell span {
  font-size: 11px; color: var(--text-tertiary);
  letter-spacing: .05em;
}

/* FORMS */
.forms-demo {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-5);
}
.form-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-6);
}
.form-card__head { margin-bottom: var(--space-5); }
.form-card__head h3 { margin: 8px 0 0; font-size: 22px; font-weight: 500; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-4); }
.field label, .field legend {
  font-size: 13px; font-weight: 500;
  color: var(--text-primary);
  letter-spacing: .02em;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select {
  appearance: none;
  background: rgba(0,0,0,.3);
  border: 1px solid var(--surface-line-strong);
  border-radius: var(--radius-1);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  width: 100%;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.field input::placeholder { color: var(--text-tertiary); }
.field input:focus,
.field input.is-focus,
.field select:focus {
  outline: none;
  border-color: var(--imp-blue);
  box-shadow: 0 0 0 3px rgba(10,136,244,.18);
  background: rgba(10,136,244,.04);
}
.field input.is-ok { border-color: var(--ok); }
.field input.is-error {
  border-color: var(--err);
  box-shadow: 0 0 0 3px rgba(255,77,77,.15);
}
.field input:disabled {
  background: rgba(0,0,0,.5);
  color: var(--text-tertiary);
  cursor: not-allowed;
  border-style: dashed;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

.select { position: relative; }
.select select {
  padding-right: 36px;
  cursor: pointer;
}
.select__chev {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-secondary);
  pointer-events: none;
}

.hint { font-size: 12px; }
.hint--ok { color: var(--ok); }
.hint--err { color: var(--err); }

.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio, .check {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px;
  padding: 8px 0;
  cursor: pointer;
  user-select: none;
}
.radio input, .check input {
  position: absolute; opacity: 0; width: 0; height: 0;
}
.radio__dot {
  width: 18px; height: 18px;
  border: 1.5px solid var(--surface-line-strong);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  margin-top: 1px;
  transition: border-color .15s;
}
.radio input:checked + .radio__dot { border-color: var(--imp-blue); }
.radio input:checked + .radio__dot::after {
  content: "";
  position: absolute; inset: 3px;
  background: var(--imp-blue);
  border-radius: 50%;
}
.check__box {
  width: 18px; height: 18px;
  border: 1.5px solid var(--surface-line-strong);
  border-radius: var(--radius-1);
  flex-shrink: 0;
  position: relative;
  margin-top: 1px;
  transition: border-color .15s, background .15s;
}
.check input:checked + .check__box {
  border-color: var(--imp-blue);
  background: var(--imp-blue);
}
.check input:checked + .check__box::after {
  content: "";
  position: absolute;
  left: 5px; top: 1px;
  width: 5px; height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-card__actions {
  display: flex; gap: 12px;
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--surface-line);
}

.states {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  font-family: inherit;
  font-size: 14px; font-weight: 500;
  letter-spacing: .04em;
  border: 1px solid transparent;
  border-radius: var(--radius-0);
  cursor: pointer;
  transition: transform .12s, background .15s, color .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 10px 16px; font-size: 13px; }

.btn--primary {
  background: var(--imp-blue);
  color: #fff;
}
.btn--primary:hover { background: #2398ff; }
.btn--primary:disabled {
  background: var(--surface-3);
  color: var(--text-tertiary);
  cursor: not-allowed;
  transform: none;
}

.btn--secondary {
  background: #fff;
  color: var(--imp-tech);
}
.btn--secondary:hover { background: var(--imp-offwhite); }

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: var(--surface-line-strong);
}
.btn--ghost:hover {
  border-color: var(--imp-blue);
  color: var(--imp-blue);
}

.btn--lime {
  background: var(--imp-lime);
  color: var(--imp-tech);
}
.btn--lime:hover { background: #d4f53a; }

.btn--orange {
  background: var(--imp-orange);
  color: var(--imp-tech);
}
.btn--orange:hover { background: #ff8e22; }

.cta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.cta-cell {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
}
.cta-cell span {
  font-size: 12px; color: var(--text-tertiary);
  letter-spacing: .05em;
}

.tags-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  align-items: center;
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}

.tag {
  display: inline-flex; align-items: center;
  padding: 4px 10px;
  font-size: 11px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius-1);
  background: var(--surface-3);
  color: var(--text-secondary);
}
.tag--default { background: var(--surface-3); color: var(--text-secondary); }
.tag--blue { background: rgba(10,136,244,.15); color: var(--imp-blue); border: 1px solid rgba(10,136,244,.4); }
.tag--lime { background: var(--imp-lime); color: var(--imp-tech); }
.tag--orange { background: var(--imp-orange); color: var(--imp-tech); }
.tag--outline {
  background: transparent;
  border: 1px solid var(--surface-line-strong);
  color: var(--text-secondary);
}

.status {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius-pill);
  font-weight: 500;
}
.status .dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}
.status--live { background: rgba(62,204,143,.15); color: var(--ok); }
.status--soon { background: rgba(10,136,244,.15); color: var(--imp-blue); }
.status--closed { background: rgba(128,128,128,.18); color: var(--text-tertiary); }

/* TEMPLATES */
.templates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.tpl {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}
.tpl--wide { grid-column: span 3; }
.tpl__head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--surface-line);
}
.tpl__name {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .12em;
  color: var(--text-tertiary);
}
.tpl__brand {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--imp-blue); font-weight: 500;
}
.tpl__viz { position: relative; overflow: hidden; }
.tpl__viz--social { aspect-ratio: 1; padding: 24px; background: var(--imp-tech); }
.tpl__viz--story { aspect-ratio: 9 / 16; padding: 24px; background: linear-gradient(180deg, var(--imp-tech), #0a0a0a); display: flex; flex-direction: column; }
.tpl__viz--email { aspect-ratio: 1.1; background: var(--imp-tech); }
.tpl__viz--slide { aspect-ratio: 16 / 9; padding: 48px; background: linear-gradient(120deg, var(--imp-deep), var(--imp-tech)); }

.tpl__bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.tpl__brackets {
  position: absolute; inset: 16px; pointer-events: none;
  background:
    linear-gradient(to right, #fff 24px, transparent 24px) top left / 24px 1px no-repeat,
    linear-gradient(to bottom, #fff 24px, transparent 24px) top left / 1px 24px no-repeat,
    linear-gradient(to left, #fff 24px, transparent 24px) top right / 24px 1px no-repeat,
    linear-gradient(to bottom, #fff 24px, transparent 24px) top right / 1px 24px no-repeat,
    linear-gradient(to right, #fff 24px, transparent 24px) bottom left / 24px 1px no-repeat,
    linear-gradient(to top, #fff 24px, transparent 24px) bottom left / 1px 24px no-repeat,
    linear-gradient(to left, #fff 24px, transparent 24px) bottom right / 24px 1px no-repeat,
    linear-gradient(to top, #fff 24px, transparent 24px) bottom right / 1px 24px no-repeat;
}
.tpl__content {
  position: relative;
  height: 100%;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 8px;
}
.tpl__eyebrow {
  font-size: 9px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue); font-weight: 500;
  margin-bottom: 8px;
}
.tpl__head-text {
  font-size: 22px; font-weight: 700; line-height: 1.05;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.tpl__head-text em { color: var(--imp-blue); font-style: normal; }
.tpl__cta {
  display: inline-flex;
  padding: 8px 12px;
  background: var(--imp-blue); color: #fff;
  font-size: 11px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
  align-self: flex-start;
}
.tpl__logo {
  position: absolute;
  bottom: 8px; right: 8px;
  width: 70px;
}

/* Story */
.tpl__story-top {
  display: flex; justify-content: space-between; align-items: center;
}
.tpl__story-stack {
  flex: 1;
  display: flex; flex-direction: column; justify-content: center;
  gap: 8px;
}
.tpl__story-num {
  font-size: 64px; font-weight: 700; line-height: 1; letter-spacing: -.03em;
  color: var(--imp-lime);
}
.tpl__story-headline {
  font-size: 20px; font-weight: 700; line-height: 1.1;
  letter-spacing: -.01em;
}
.tpl__story-foot {
  font-size: 14px; color: var(--text-secondary);
}
.tpl__story-cta {
  text-align: center;
  font-size: 11px; letter-spacing: .15em;
  padding: 10px;
  border-top: 1px solid var(--surface-line);
  color: var(--imp-lime);
}

/* Email */
.tpl__email-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--surface-line);
}
.tpl__email-dots { display: flex; gap: 5px; }
.tpl__email-dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.2);
}
.tpl__email-from {
  font-family: var(--font-mono);
  font-size: 10px; color: var(--text-tertiary);
}
.tpl__email-body {
  padding: 20px;
  background: var(--imp-tech);
}
.tpl__email-subject {
  font-size: 18px; font-weight: 700; letter-spacing: -.01em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-line);
}
.tpl__email-body p {
  font-size: 13px; color: var(--text-secondary); line-height: 1.55;
  margin: 0 0 12px;
}
.tpl__email-foot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}

/* Slide */
.tpl__a-bg {
  position: absolute;
  right: -60px; top: -60px;
  width: 480px; height: 480px;
}
.tpl__slide-content { position: relative; }
.tpl__slide-logo {
  position: absolute;
  bottom: 32px; right: 32px;
  width: 120px;
}

/* DO/DONT cards */
.dodont-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.dd-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
  position: relative;
}
.dd-card--do { border-top: 3px solid var(--ok); }
.dd-card--dont { border-top: 3px solid var(--err); }
.dd-card__tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 10px; letter-spacing: .2em;
  margin-bottom: var(--space-4);
  color: var(--text-tertiary);
}
.dd-card__viz {
  height: 180px;
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-4);
  overflow: hidden;
}
.dd-card p { margin: 0; font-size: 13px; color: var(--text-secondary); }

/* Responsive */
@media (max-width: 1100px) {
  .principles, .voice, .audience { grid-template-columns: 1fr; }
  .swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .swatch-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .brand-grid { grid-template-columns: 1fr; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .voice-examples, .dodont, .dodont-grid, .forms-demo, .templates { grid-template-columns: 1fr; }
  .tpl--wide { grid-column: auto; }
  .logo-vars, .logo-rules, .radii, .elev, .icon-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-grid { grid-template-columns: repeat(2, 1fr); }
  .elements-grid { grid-template-columns: repeat(2, 1fr); }
}


/* ============================================================
   Impacta Design System — root stylesheet
   Consumers link this single file; it pulls the full system.
   (Page-specific landing-page CSS is intentionally NOT imported
    here — those live alongside their own HTML.)
   ============================================================ */
/* ============================================================
   Impacta Design System — web fonts
   Real @font-face for the families referenced by the type tokens
   (--font-primary: Ubuntu, --font-mono: Ubuntu Mono).
   Hosted woff2 from Google Fonts (Ubuntu Font Licence, open source).
   Replace these src URLs with locally-uploaded files when available.
   ============================================================ */

/* ---------- Ubuntu (sans) ---------- */
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("assets/ubuntu-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/ubuntu-700.woff2") format("woff2");
}

/* ---------- Ubuntu Mono ---------- */
@font-face {
  font-family: "Ubuntu Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("assets/ubuntu-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "Ubuntu Mono";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("assets/ubuntu-mono-700.woff2") format("woff2");
}

/* Impacta Design System · tokens */
:root {
  /* Primary */
  --imp-tech:      #030200;
  --imp-white:     #FFFFFF;
  --imp-blue:      #0A88F4;

  /* Secondary */
  --imp-deep:      #00011E;
  --imp-lime:      #C3EB1E;
  --imp-orange:    #FF7A00;

  /* Tertiary */
  --imp-graphite:  #272727;
  --imp-offwhite:  #F3F3F3;
  --imp-gray:      #808080;

  /* Surfaces (derived for product) */
  --surface-0:     #030200;
  --surface-1:     #0a0a0a;
  --surface-2:     #141414;
  --surface-3:     #1d1d1d;
  --surface-line:  rgba(255,255,255,.08);
  --surface-line-strong: rgba(255,255,255,.16);

  /* Text */
  --text-primary:  #FFFFFF;
  --text-secondary:#C8C8C8;
  --text-tertiary: #808080;
  --text-on-light: #030200;

  /* Status */
  --ok:    #3ECC8F;
  --warn:  #FFB020;
  --err:   #FF4D4D;

  /* Spacing — base 4 */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  /* Radii */
  --radius-0: 0;
  --radius-1: 2px;
  --radius-2: 4px;
  --radius-3: 8px;
  --radius-pill: 999px;

  /* Type */
  --font-primary: "Ubuntu", Arial, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "Ubuntu Mono", "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;

  --type-display:  72px;
  --type-h1:       48px;
  --type-h2:       36px;
  --type-h3:       28px;
  --type-h4:       20px;
  --type-body:     16px;
  --type-sm:       14px;
  --type-eyebrow:  12px;

  /* Layout */
  --nav-w: 260px;
  --content-max: 1180px;

  /* Elevation */
  --elev-1: 0 1px 0 rgba(255,255,255,.06), 0 8px 24px rgba(0,0,0,.4);
  --elev-2: 0 1px 0 rgba(255,255,255,.08), 0 16px 40px rgba(0,0,0,.6);
  --elev-glow: 0 0 0 1px rgba(10,136,244,.4), 0 0 24px rgba(10,136,244,.25);
}

/* Base · reset & layout */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { background: var(--imp-tech); }
body {
  font-family: var(--font-primary);
  font-size: var(--type-body);
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--imp-tech);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* layout */
.skip {
  position: absolute; top: -100px; left: 0; padding: 8px 12px;
  background: var(--imp-blue); color: #fff; z-index: 1000;
}
.skip:focus { top: 0; }

.main {
  margin-left: var(--nav-w);
  min-height: 100vh;
  padding: 0;
}

/* SIDEBAR */
.nav {
  position: fixed; inset: 0 auto 0 0;
  width: var(--nav-w);
  background: #050505;
  border-right: 1px solid var(--surface-line);
  display: flex; flex-direction: column;
  padding: 28px 0 16px;
  overflow-y: auto;
  z-index: 50;
}
.nav__brand { padding: 0 24px 24px; border-bottom: 1px solid var(--surface-line); }
.nav__logo { width: 130px; height: auto; color: #fff; display: block; }
.nav__sub {
  margin-top: 10px;
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  display: flex; align-items: center; gap: 8px;
}
.nav__ver {
  color: var(--imp-blue);
  border: 1px solid rgba(10,136,244,.3);
  padding: 1px 6px;
  letter-spacing: .1em;
}
.nav__menu { padding: 16px 12px; flex: 1; }
.nav__group {
  font-size: 10px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  padding: 16px 12px 6px;
}
.nav__link {
  display: block;
  padding: 7px 12px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 13.5px;
  border-left: 2px solid transparent;
  transition: color .15s ease, background .15s ease, border-color .15s ease;
}
.nav__link:hover { color: var(--text-primary); background: rgba(255,255,255,.03); }
.nav__link.is-active {
  color: #fff;
  border-left-color: var(--imp-blue);
  background: rgba(10,136,244,.08);
}
.nav__foot {
  border-top: 1px solid var(--surface-line);
  padding: 12px 24px;
  font-size: 11px;
  color: var(--text-tertiary);
}
.nav__foot-row { display: flex; justify-content: space-between; padding: 3px 0; }

/* HERO */
.hero {
  position: relative;
  padding: 120px var(--space-7) 96px;
  border-bottom: 1px solid var(--surface-line);
  overflow: hidden;
}
.hero__bg { position: absolute; inset: 0; pointer-events: none; }
.hero__bg svg:first-child { width: 100%; height: 100%; }
.hero__a {
  position: absolute;
  right: -80px; bottom: -120px;
  width: 600px; height: 600px;
  color: rgba(255,255,255,.04);
}
.hero__inner { position: relative; max-width: var(--content-max); }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: var(--type-eyebrow);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--imp-blue);
  font-weight: 500;
}
.eyebrow__rule {
  display: inline-block; width: 32px; height: 1px;
  background: currentColor; opacity: .5;
}
.hero__title {
  font-size: clamp(48px, 6vw, 88px);
  line-height: 1; letter-spacing: -.02em; font-weight: 700;
  margin: 18px 0 24px;
  max-width: 18ch;
}
.hero__title em { color: var(--imp-blue); font-style: normal; }
.hero__lede {
  font-size: 19px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 64ch;
  margin: 0 0 32px;
}
.hero__chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 56px; }
.chip {
  display: inline-flex; align-items: center;
  padding: 6px 12px;
  border: 1px solid var(--surface-line-strong);
  font-size: 12px; letter-spacing: .04em;
  color: var(--text-secondary);
  border-radius: var(--radius-1);
}
.hero__stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding-top: 32px;
  border-top: 1px solid var(--surface-line);
}
.stat__num {
  font-size: 44px; font-weight: 700; letter-spacing: -.02em;
  color: var(--imp-blue);
}
.stat__label {
  font-size: 13px; color: var(--text-secondary);
  margin-top: 4px;
}

/* SECTION */
.section {
  padding: var(--space-9) var(--space-7);
  border-bottom: 1px solid var(--surface-line);
  max-width: calc(var(--content-max) + var(--space-7) * 2);
}
.section__head {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: var(--space-5);
  margin-bottom: var(--space-7);
  align-items: start;
}
.section__num {
  font-family: var(--font-mono);
  font-size: 14px; letter-spacing: .1em;
  color: var(--imp-blue);
  padding-top: 8px;
  border-top: 2px solid var(--imp-blue);
  width: 60px;
}
.kicker {
  font-size: var(--type-eyebrow);
  letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 8px;
}
.section__title {
  font-size: var(--type-h1);
  line-height: 1.05; letter-spacing: -.015em;
  font-weight: 700;
  margin: 0 0 12px;
}
.section__desc {
  font-size: 17px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 64ch; margin: 0;
}
.section__caption {
  margin-top: var(--space-6);
  font-size: 14px; color: var(--text-secondary);
  max-width: 70ch;
}
.subhead {
  font-size: 14px; font-weight: 500;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--text-secondary);
  margin: var(--space-7) 0 var(--space-4);
  padding-bottom: 8px;
  border-bottom: 1px solid var(--surface-line);
}
.subhead--tight { margin-top: 0; }
.subhead__hint {
  text-transform: none; letter-spacing: 0;
  color: var(--text-tertiary);
  font-weight: 400;
  margin-left: 6px;
}

/* FOOTER */
.foot {
  padding: var(--space-8) var(--space-7) var(--space-6);
  border-top: 1px solid var(--surface-line);
  background: #050505;
}
.foot__brand {
  display: flex; align-items: center; gap: 16px;
  color: var(--text-tertiary);
  font-size: 12px; letter-spacing: .1em; text-transform: uppercase;
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--surface-line);
}
.foot__cols {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding: var(--space-6) 0;
}
.foot__cols h5 {
  font-size: 11px; letter-spacing: .18em; text-transform: uppercase;
  color: var(--text-tertiary); margin: 0 0 12px; font-weight: 500;
}
.foot__cols a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  padding: 4px 0;
}
.foot__cols a:hover { color: #fff; }
.foot__copy {
  font-size: 12px; color: var(--text-tertiary);
  padding-top: var(--space-5);
  border-top: 1px solid var(--surface-line);
}

@media (max-width: 1024px) {
  .nav { transform: translateX(-100%); }
  .main { margin-left: 0; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); }
  .foot__cols { grid-template-columns: repeat(2, 1fr); }
}

/* Components */

/* PRINCIPLES */
.principles {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--surface-line);
  border: 1px solid var(--surface-line);
}
.principle {
  background: var(--imp-tech);
  padding: var(--space-6);
}
.principle__num {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: .15em;
  color: var(--imp-blue);
  margin-bottom: var(--space-4);
}
.principle h3 {
  font-size: 22px; font-weight: 500;
  margin: 0 0 12px;
}
.principle p {
  margin: 0; color: var(--text-secondary); font-size: 15px;
}

/* BRAND */
.brand-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.4fr;
  gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.brand-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-6);
}
.brand-card--accent {
  background: var(--imp-blue);
  color: #fff;
  border-color: var(--imp-blue);
}
.brand-card--accent .brand-card__label { color: rgba(255,255,255,.85); }
.brand-card__label {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue);
  margin-bottom: 16px;
  font-weight: 500;
}
.brand-card p { margin: 0; font-size: 18px; line-height: 1.45; }

.values {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.value {
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}
.value__bar {
  width: 32px; height: 3px;
  background: var(--imp-blue);
  margin-bottom: var(--space-3);
}
.value h4 { margin: 0 0 8px; font-size: 18px; font-weight: 500; }
.value p { margin: 0; font-size: 14px; color: var(--text-secondary); }

.positioning {
  background: linear-gradient(135deg, var(--imp-deep), var(--imp-tech));
  border: 1px solid var(--surface-line);
  padding: var(--space-8) var(--space-7);
  position: relative;
}
.positioning__quote {
  max-width: 60ch;
  font-size: 28px; line-height: 1.35;
  font-weight: 500;
}
.positioning__quote p { margin: 8px 0; }
.quote-mark {
  font-family: Georgia, serif;
  font-size: 64px; line-height: 1;
  color: var(--imp-blue);
  display: inline-block;
  vertical-align: -16px;
}
.quote-mark--end { float: right; }
.positioning__label {
  position: absolute; top: var(--space-5); right: var(--space-6);
  font-size: 11px; letter-spacing: .2em;
  color: var(--text-tertiary);
}

/* VOICE */
.voice {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.voice__card {
  position: relative;
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  overflow: hidden;
}
.voice__letter {
  position: absolute;
  top: -20px; right: -10px;
  font-size: 200px; font-weight: 700;
  color: rgba(10,136,244,.07);
  line-height: 1;
  pointer-events: none;
}
.voice__card h3 { margin: 0 0 8px; font-size: 22px; font-weight: 500; position: relative; }
.voice__card p { margin: 0; color: var(--text-secondary); position: relative; }

.voice-examples {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  margin: var(--space-6) 0;
}
.voice-example {
  position: relative;
  padding: var(--space-7) var(--space-6) var(--space-6);
  background: var(--surface-1);
  border: 1px dashed var(--surface-line-strong);
}
.voice-example__label {
  position: absolute; top: 16px; left: 24px;
  font-size: 10px; letter-spacing: .2em;
  color: var(--text-tertiary);
}
.voice-example .quote-mark {
  position: absolute; top: 24px; right: 24px;
  font-size: 56px; color: rgba(255,255,255,.18);
}
.voice-example p {
  margin: 16px 0 0;
  font-style: italic;
  font-size: 15px; line-height: 1.55;
  color: var(--text-secondary);
  max-width: 44ch;
}

.dodont {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}
.dodont__col {
  padding: var(--space-5);
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
}
.dodont__col--do { border-left: 3px solid var(--ok); }
.dodont__col--dont { border-left: 3px solid var(--err); }
.dodont__head {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: .2em;
  color: var(--text-tertiary);
  margin-bottom: 12px;
}
.tick { color: var(--ok); font-weight: 700; }
.cross { color: var(--err); font-weight: 700; }
.dodont__col ul { margin: 0; padding-left: 18px; }
.dodont__col li { padding: 6px 0; color: var(--text-secondary); font-size: 14px; }

/* AUDIENCE */
.audience {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.audience__card {
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  position: relative;
}
.audience__num {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--imp-blue);
  letter-spacing: .15em;
  margin-bottom: 12px;
}
.audience__card h3 { margin: 0 0 8px; font-size: 20px; font-weight: 500; }
.audience__card p { margin: 0 0 16px; color: var(--text-secondary); font-size: 14px; }
.audience__tags { display: flex; flex-wrap: wrap; gap: 6px; }

/* SWATCHES */
.swatch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.swatch {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  display: grid;
  grid-template-rows: 200px auto;
  overflow: hidden;
}
.swatch--lg { grid-template-rows: 220px auto; }
.swatch--sm { grid-template-rows: 120px auto; }
.swatch__chip {
  background: var(--bg);
  position: relative;
}
.swatch__chip::after {
  content: "";
  position: absolute; left: 16px; bottom: 16px;
  width: 16px; height: 16px;
  border: 1px solid var(--fg);
  opacity: .35;
}
.swatch__meta { padding: var(--space-5); }
.swatch__name { font-size: 18px; font-weight: 500; margin-bottom: 4px; }
.swatch__token {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--imp-blue);
  letter-spacing: .05em;
  margin-bottom: 12px;
}
.swatch__values { list-style: none; padding: 0; margin: 0 0 12px; }
.swatch__values li {
  display: grid; grid-template-columns: 50px 1fr;
  gap: 10px;
  font-size: 12px;
  padding: 3px 0;
}
.swatch__values span {
  color: var(--text-tertiary);
  letter-spacing: .1em;
}
.swatch__values code {
  font-family: var(--font-mono);
  color: var(--text-secondary);
  font-size: 12px;
}
.swatch__use {
  margin: 12px 0 0;
  font-size: 12px; line-height: 1.5;
  color: var(--text-tertiary);
  padding-top: 12px;
  border-top: 1px solid var(--surface-line);
}

/* PROPORTION */
.proportion { margin-bottom: var(--space-6); }
.proportion__bar {
  display: flex;
  height: 240px;
  border: 1px solid var(--surface-line);
}
.proportion__seg {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-5);
  text-align: center;
}
.proportion__big { font-size: 56px; font-weight: 700; letter-spacing: -.03em; line-height: 1; }
.proportion__lbl { font-size: 11px; letter-spacing: .2em; margin-top: 8px; opacity: .7; }
.proportion__sub { font-size: 13px; margin-top: 4px; opacity: .8; }
.proportion__caption {
  font-size: 12px; color: var(--text-tertiary);
  margin-top: 12px;
}

/* BRAND COLOR TABLE */
.brand-color-table {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
}
.bct__row {
  display: grid;
  grid-template-columns: 2.2fr repeat(5, 1fr);
  align-items: center;
  padding: 12px 16px;
  font-size: 13px;
  border-bottom: 1px solid var(--surface-line);
}
.bct__row:last-child { border-bottom: none; }
.bct__row--head {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-tertiary);
  background: var(--surface-2);
}
.bct__row > span:first-child { font-weight: 500; color: var(--text-primary); }
.bct__cell {
  width: 28px; height: 28px;
  border: 1px solid var(--surface-line);
  background: transparent;
  position: relative;
}
.bct__cell[data-on="1"] { background: var(--c); border-color: rgba(255,255,255,.2); }

/* TYPE */
.type-hero {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-6);
  align-items: start;
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-6);
}
.type-hero__big {
  font-size: 240px; font-weight: 700;
  line-height: .85; letter-spacing: -.04em;
  color: #fff;
}
.type-hero__name {
  font-size: 14px; letter-spacing: .25em;
  color: var(--imp-blue);
  margin-bottom: 16px;
}
.type-hero__weights {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-bottom: 20px;
}
.type-hero__weights span {
  display: inline-flex; padding: 4px 10px;
  font-size: 12px;
  border: 1px solid var(--surface-line-strong);
  color: var(--text-secondary);
}
.type-hero__weights span:nth-child(1) { font-weight: 300; }
.type-hero__weights span:nth-child(2) { font-weight: 400; }
.type-hero__weights span:nth-child(3) { font-weight: 500; }
.type-hero__weights span:nth-child(4) { font-weight: 700; }
.type-hero__copy {
  font-size: 15px; line-height: 1.6;
  color: var(--text-secondary);
  max-width: 56ch;
  margin: 0 0 24px;
}
.type-hero__fallback {
  display: flex; align-items: baseline; gap: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}
.type-hero__fb-label {
  font-size: 10px; letter-spacing: .2em; color: var(--text-tertiary);
}
.type-hero__fb-name {
  font-family: Arial, sans-serif;
  font-size: 14px;
}

.type-scale {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  margin-bottom: var(--space-6);
}
.type-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  padding: var(--space-5);
  border-bottom: 1px solid var(--surface-line);
  gap: var(--space-5);
}
.type-row:last-child { border-bottom: none; }
.type-row__sample {
  text-align: center;
  color: #fff;
}
.type-row__name { font-size: 16px; font-weight: 500; }
.type-row__token {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--imp-blue);
  margin: 4px 0 6px;
}
.type-row__use { font-size: 13px; color: var(--text-tertiary); }

.type-applications {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-7);
}

/* SPACING */
.spacing {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-6);
}
.spacing__row {
  display: grid;
  grid-template-columns: 140px 80px 1fr;
  align-items: center;
  padding: 12px 20px;
  border-bottom: 1px solid var(--surface-line);
  font-size: 13px;
}
.spacing__row:last-child { border-bottom: none; }
.spacing__token {
  font-family: var(--font-mono);
  color: var(--imp-blue);
}
.spacing__val { color: var(--text-secondary); }
.spacing__viz {
  height: 24px;
  background: var(--imp-blue);
}

.grid-demo {
  border: 1px solid var(--surface-line);
  background: var(--surface-1);
  padding: var(--space-6);
}
.grid-demo__cols {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  height: 200px;
  margin-bottom: var(--space-5);
}
.grid-demo__cols span {
  background: rgba(10,136,244,.12);
  border-top: 2px solid var(--imp-blue);
}
.grid-demo__legend {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--surface-line);
}
.grid-demo__legend > div { display: flex; flex-direction: column; gap: 4px; }
.grid-demo__legend span {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--text-tertiary);
}
.grid-demo__legend code {
  font-family: var(--font-mono);
  color: #fff;
  font-size: 14px;
}

/* RADII */
.radii {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.radii__item {
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  text-align: center;
}
.radii__shape {
  width: 80px; height: 80px;
  background: var(--imp-blue);
  margin: 0 auto var(--space-4);
}
.radii__name {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--imp-blue);
}
.radii__val { font-size: 14px; margin: 4px 0 6px; }
.radii__use { font-size: 12px; color: var(--text-tertiary); }

.elev {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
.elev__item {
  padding: var(--space-6);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  text-align: center;
}
.elev__box {
  width: 100%; height: 100px;
  background: var(--surface-3);
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-4);
}
.elev__lbl {
  font-family: var(--font-mono);
  font-size: 11px; color: var(--imp-blue);
}

/* LOGO */
.logo-stage {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line-strong);
  padding: var(--space-9) var(--space-6);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-5);
  margin-bottom: var(--space-6);
}
.logo-stage__lockup { width: 360px; height: auto; color: #fff; }
.logo-stage__caption {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--text-tertiary);
}

.logo-vars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.logo-var {
  padding: var(--space-6);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: var(--space-4);
  border: 1px solid var(--surface-line);
  min-height: 140px;
}
.logo-var svg { width: 70%; max-width: 200px; }
.logo-var span {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: rgba(255,255,255,.5);
  mix-blend-mode: difference;
}

.logo-rules {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.logo-rule {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}
.logo-rule__head {
  font-size: 11px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue);
  margin-bottom: var(--space-4);
}
.logo-rule__viz {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line-strong);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  min-height: 200px;
  margin-bottom: var(--space-4);
}
.logo-rule__dim {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .15em;
  color: var(--text-tertiary);
}
.logo-rule p { margin: 0; font-size: 13px; color: var(--text-secondary); }

.clear-box {
  position: relative;
  padding: 30px;
  border: 1px dashed rgba(10,136,244,.6);
}
.clear-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(10,136,244,.15) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(10,136,244,.15) 1px, transparent 1px);
  background-size: 25px 25px;
}

/* ARCHITECTURE */
.arch-tree {
  background: linear-gradient(180deg, var(--imp-deep), var(--imp-tech));
  border: 1px solid var(--surface-line);
  padding: var(--space-7) var(--space-6);
  margin-bottom: var(--space-5);
}
.arch-tree__master {
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  margin-bottom: 24px;
}
.arch-tree__master svg { color: #fff; }
.arch-tree__role {
  font-family: var(--font-mono);
  font-size: 10px; letter-spacing: .2em;
  color: var(--imp-blue);
}
.arch-tree__line {
  width: 1px; height: 32px;
  background: rgba(255,255,255,.2);
  margin: 0 auto;
}
.arch-tree__branches {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  position: relative;
  padding-top: 32px;
}
.arch-tree__branches::before {
  content: "";
  position: absolute;
  top: 0; left: 25%; right: 25%;
  height: 1px;
  background: rgba(255,255,255,.2);
}
.arch-tree__branch {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
}
.arch-tree__sub {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 20px;
  border: 1px solid var(--surface-line-strong);
  background: rgba(0,0,0,.3);
}
.arch-tree__sub svg { width: 100px; color: #fff; }
.arch-tree__sub-label {
  font-size: 14px; font-weight: 500;
  letter-spacing: .05em;
}
.arch-tree__children {
  display: flex; flex-direction: column; gap: 8px;
  padding-left: 24px;
  position: relative;
}
.arch-tree__children::before {
  content: ""; position: absolute;
  top: -8px; bottom: 16px; left: 8px;
  width: 1px; background: rgba(255,255,255,.15);
}
.arch-tree__child {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 14px;
  background: rgba(0,0,0,.4);
  border-left: 1px solid var(--surface-line);
  position: relative;
}
.arch-tree__child::before {
  content: ""; position: absolute;
  left: -16px; top: 50%;
  width: 16px; height: 1px;
  background: rgba(255,255,255,.15);
}
.arch-tree__child svg { width: 70px; color: #fff; }
.arch-tree__child span {
  font-size: 12px; font-weight: 500;
  letter-spacing: .05em;
}
.arch-tree__pill {
  padding: 2px 6px;
  background: var(--c);
  font-size: 11px;
}

/* ELEMENTS */
.elements-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.el-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}
.el-card__viz {
  background: var(--imp-tech);
  border: 1px dashed var(--surface-line);
  margin-bottom: var(--space-4);
}
.el-card__viz svg { width: 100%; height: 140px; display: block; }
.el-card__name { font-size: 16px; font-weight: 500; margin-bottom: 4px; }
.el-card p { margin: 0; font-size: 13px; color: var(--text-secondary); }

/* ICONS */
.icon-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1px;
  background: var(--surface-line);
  border: 1px solid var(--surface-line);
}
.icon-cell {
  background: var(--imp-tech);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  color: #fff;
}
.icon-cell svg { width: 32px; height: 32px; color: #fff; }
.icon-cell span {
  font-size: 11px; color: var(--text-tertiary);
  letter-spacing: .05em;
}

/* FORMS */
.forms-demo {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-5);
}
.form-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-6);
}
.form-card__head { margin-bottom: var(--space-5); }
.form-card__head h3 { margin: 8px 0 0; font-size: 22px; font-weight: 500; }

.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--space-4); }
.field label, .field legend {
  font-size: 13px; font-weight: 500;
  color: var(--text-primary);
  letter-spacing: .02em;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field select {
  appearance: none;
  background: rgba(0,0,0,.3);
  border: 1px solid var(--surface-line-strong);
  border-radius: var(--radius-1);
  padding: 12px 14px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text-primary);
  width: 100%;
  transition: border-color .15s, box-shadow .15s, background .15s;
}
.field input::placeholder { color: var(--text-tertiary); }
.field input:focus,
.field input.is-focus,
.field select:focus {
  outline: none;
  border-color: var(--imp-blue);
  box-shadow: 0 0 0 3px rgba(10,136,244,.18);
  background: rgba(10,136,244,.04);
}
.field input.is-ok { border-color: var(--ok); }
.field input.is-error {
  border-color: var(--err);
  box-shadow: 0 0 0 3px rgba(255,77,77,.15);
}
.field input:disabled {
  background: rgba(0,0,0,.5);
  color: var(--text-tertiary);
  cursor: not-allowed;
  border-style: dashed;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }

.select { position: relative; }
.select select {
  padding-right: 36px;
  cursor: pointer;
}
.select__chev {
  position: absolute; right: 12px; top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--text-secondary);
  pointer-events: none;
}

.hint { font-size: 12px; }
.hint--ok { color: var(--ok); }
.hint--err { color: var(--err); }

.radio-group { display: flex; flex-direction: column; gap: 8px; }
.radio, .check {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px;
  padding: 8px 0;
  cursor: pointer;
  user-select: none;
}
.radio input, .check input {
  position: absolute; opacity: 0; width: 0; height: 0;
}
.radio__dot {
  width: 18px; height: 18px;
  border: 1.5px solid var(--surface-line-strong);
  border-radius: 50%;
  flex-shrink: 0;
  position: relative;
  margin-top: 1px;
  transition: border-color .15s;
}
.radio input:checked + .radio__dot { border-color: var(--imp-blue); }
.radio input:checked + .radio__dot::after {
  content: "";
  position: absolute; inset: 3px;
  background: var(--imp-blue);
  border-radius: 50%;
}
.check__box {
  width: 18px; height: 18px;
  border: 1.5px solid var(--surface-line-strong);
  border-radius: var(--radius-1);
  flex-shrink: 0;
  position: relative;
  margin-top: 1px;
  transition: border-color .15s, background .15s;
}
.check input:checked + .check__box {
  border-color: var(--imp-blue);
  background: var(--imp-blue);
}
.check input:checked + .check__box::after {
  content: "";
  position: absolute;
  left: 5px; top: 1px;
  width: 5px; height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.form-card__actions {
  display: flex; gap: 12px;
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--surface-line);
}

.states {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
}

/* BUTTONS */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  font-family: inherit;
  font-size: 14px; font-weight: 500;
  letter-spacing: .04em;
  border: 1px solid transparent;
  border-radius: var(--radius-0);
  cursor: pointer;
  transition: transform .12s, background .15s, color .15s, border-color .15s;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 10px 16px; font-size: 13px; }

.btn--primary {
  background: var(--imp-blue);
  color: #fff;
}
.btn--primary:hover { background: #2398ff; }
.btn--primary:disabled {
  background: var(--surface-3);
  color: var(--text-tertiary);
  cursor: not-allowed;
  transform: none;
}

.btn--secondary {
  background: #fff;
  color: var(--imp-tech);
}
.btn--secondary:hover { background: var(--imp-offwhite); }

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: var(--surface-line-strong);
}
.btn--ghost:hover {
  border-color: var(--imp-blue);
  color: var(--imp-blue);
}

.btn--lime {
  background: var(--imp-lime);
  color: var(--imp-tech);
}
.btn--lime:hover { background: #d4f53a; }

.btn--orange {
  background: var(--imp-orange);
  color: var(--imp-tech);
}
.btn--orange:hover { background: #ff8e22; }

.cta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}
.cta-cell {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
  display: flex; flex-direction: column; align-items: flex-start; gap: 12px;
}
.cta-cell span {
  font-size: 12px; color: var(--text-tertiary);
  letter-spacing: .05em;
}

.tags-row {
  display: flex; flex-wrap: wrap; gap: 10px;
  align-items: center;
  padding: var(--space-5);
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}

.tag {
  display: inline-flex; align-items: center;
  padding: 4px 10px;
  font-size: 11px; font-weight: 500;
  letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius-1);
  background: var(--surface-3);
  color: var(--text-secondary);
}
.tag--default { background: var(--surface-3); color: var(--text-secondary); }
.tag--blue { background: rgba(10,136,244,.15); color: var(--imp-blue); border: 1px solid rgba(10,136,244,.4); }
.tag--lime { background: var(--imp-lime); color: var(--imp-tech); }
.tag--orange { background: var(--imp-orange); color: var(--imp-tech); }
.tag--outline {
  background: transparent;
  border: 1px solid var(--surface-line-strong);
  color: var(--text-secondary);
}

.status {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  border-radius: var(--radius-pill);
  font-weight: 500;
}
.status .dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor;
}
.status--live { background: rgba(62,204,143,.15); color: var(--ok); }
.status--soon { background: rgba(10,136,244,.15); color: var(--imp-blue); }
.status--closed { background: rgba(128,128,128,.18); color: var(--text-tertiary); }

/* TEMPLATES */
.templates {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}
.tpl {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
}
.tpl--wide { grid-column: span 3; }
.tpl__head {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--surface-line);
}
.tpl__name {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: .12em;
  color: var(--text-tertiary);
}
.tpl__brand {
  font-size: 11px; letter-spacing: .15em; text-transform: uppercase;
  color: var(--imp-blue); font-weight: 500;
}
.tpl__viz { position: relative; overflow: hidden; }
.tpl__viz--social { aspect-ratio: 1; padding: 24px; background: var(--imp-tech); }
.tpl__viz--story { aspect-ratio: 9 / 16; padding: 24px; background: linear-gradient(180deg, var(--imp-tech), #0a0a0a); display: flex; flex-direction: column; }
.tpl__viz--email { aspect-ratio: 1.1; background: var(--imp-tech); }
.tpl__viz--slide { aspect-ratio: 16 / 9; padding: 48px; background: linear-gradient(120deg, var(--imp-deep), var(--imp-tech)); }

.tpl__bg { position: absolute; inset: 0; width: 100%; height: 100%; }
.tpl__brackets {
  position: absolute; inset: 16px; pointer-events: none;
  background:
    linear-gradient(to right, #fff 24px, transparent 24px) top left / 24px 1px no-repeat,
    linear-gradient(to bottom, #fff 24px, transparent 24px) top left / 1px 24px no-repeat,
    linear-gradient(to left, #fff 24px, transparent 24px) top right / 24px 1px no-repeat,
    linear-gradient(to bottom, #fff 24px, transparent 24px) top right / 1px 24px no-repeat,
    linear-gradient(to right, #fff 24px, transparent 24px) bottom left / 24px 1px no-repeat,
    linear-gradient(to top, #fff 24px, transparent 24px) bottom left / 1px 24px no-repeat,
    linear-gradient(to left, #fff 24px, transparent 24px) bottom right / 24px 1px no-repeat,
    linear-gradient(to top, #fff 24px, transparent 24px) bottom right / 1px 24px no-repeat;
}
.tpl__content {
  position: relative;
  height: 100%;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 8px;
}
.tpl__eyebrow {
  font-size: 9px; letter-spacing: .2em; text-transform: uppercase;
  color: var(--imp-blue); font-weight: 500;
  margin-bottom: 8px;
}
.tpl__head-text {
  font-size: 22px; font-weight: 700; line-height: 1.05;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}
.tpl__head-text em { color: var(--imp-blue); font-style: normal; }
.tpl__cta {
  display: inline-flex;
  padding: 8px 12px;
  background: var(--imp-blue); color: #fff;
  font-size: 11px; font-weight: 500; letter-spacing: .08em; text-transform: uppercase;
  align-self: flex-start;
}
.tpl__logo {
  position: absolute;
  bottom: 8px; right: 8px;
  width: 70px;
}

/* Story */
.tpl__story-top {
  display: flex; justify-content: space-between; align-items: center;
}
.tpl__story-stack {
  flex: 1;
  display: flex; flex-direction: column; justify-content: center;
  gap: 8px;
}
.tpl__story-num {
  font-size: 64px; font-weight: 700; line-height: 1; letter-spacing: -.03em;
  color: var(--imp-lime);
}
.tpl__story-headline {
  font-size: 20px; font-weight: 700; line-height: 1.1;
  letter-spacing: -.01em;
}
.tpl__story-foot {
  font-size: 14px; color: var(--text-secondary);
}
.tpl__story-cta {
  text-align: center;
  font-size: 11px; letter-spacing: .15em;
  padding: 10px;
  border-top: 1px solid var(--surface-line);
  color: var(--imp-lime);
}

/* Email */
.tpl__email-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: var(--surface-2);
  border-bottom: 1px solid var(--surface-line);
}
.tpl__email-dots { display: flex; gap: 5px; }
.tpl__email-dots span {
  width: 8px; height: 8px; border-radius: 50%;
  background: rgba(255,255,255,.2);
}
.tpl__email-from {
  font-family: var(--font-mono);
  font-size: 10px; color: var(--text-tertiary);
}
.tpl__email-body {
  padding: 20px;
  background: var(--imp-tech);
}
.tpl__email-subject {
  font-size: 18px; font-weight: 700; letter-spacing: -.01em;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--surface-line);
}
.tpl__email-body p {
  font-size: 13px; color: var(--text-secondary); line-height: 1.55;
  margin: 0 0 12px;
}
.tpl__email-foot {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--surface-line);
}

/* Slide */
.tpl__a-bg {
  position: absolute;
  right: -60px; top: -60px;
  width: 480px; height: 480px;
}
.tpl__slide-content { position: relative; }
.tpl__slide-logo {
  position: absolute;
  bottom: 32px; right: 32px;
  width: 120px;
}

/* DO/DONT cards */
.dodont-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}
.dd-card {
  background: var(--surface-1);
  border: 1px solid var(--surface-line);
  padding: var(--space-5);
  position: relative;
}
.dd-card--do { border-top: 3px solid var(--ok); }
.dd-card--dont { border-top: 3px solid var(--err); }
.dd-card__tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 10px; letter-spacing: .2em;
  margin-bottom: var(--space-4);
  color: var(--text-tertiary);
}
.dd-card__viz {
  height: 180px;
  border: 1px solid var(--surface-line);
  margin-bottom: var(--space-4);
  overflow: hidden;
}
.dd-card p { margin: 0; font-size: 13px; color: var(--text-secondary); }

/* Responsive */
@media (max-width: 1100px) {
  .principles, .voice, .audience { grid-template-columns: 1fr; }
  .swatch-grid { grid-template-columns: repeat(2, 1fr); }
  .swatch-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .brand-grid { grid-template-columns: 1fr; }
  .values { grid-template-columns: repeat(2, 1fr); }
  .voice-examples, .dodont, .dodont-grid, .forms-demo, .templates { grid-template-columns: 1fr; }
  .tpl--wide { grid-column: auto; }
  .logo-vars, .logo-rules, .radii, .elev, .icon-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-grid { grid-template-columns: repeat(2, 1fr); }
  .elements-grid { grid-template-columns: repeat(2, 1fr); }
}




  html { scroll-behavior: smooth; }
  body {
    color: #030200;
    font-family: "Ubuntu", Arial, sans-serif;
    margin: 0;
    background-color: #030200;
    background-image:
      radial-gradient(70% 55% at 85% 0%, rgba(255,87,168,.26) 0%, rgba(255,87,168,0) 60%),
      radial-gradient(55% 45% at 0% 42%, rgba(255,87,168,.15) 0%, rgba(255,87,168,0) 60%),
      radial-gradient(60% 40% at 50% 100%, rgba(255,87,168,.18) 0%, rgba(255,87,168,0) 60%),
      url("assets/grain.png"),
      url("assets/grain.png");
    background-size: 140% 90%, 100% 100%, 100% 60%, 700px 700px, 1240px 1240px;
    background-position: 0 0, 0 0, 0 0, 0 0, 190px 90px;
    background-repeat: no-repeat, no-repeat, no-repeat, repeat, repeat;
    background-attachment: fixed, fixed, fixed, fixed, fixed;
  }
  a { color: #FF57A8; text-decoration: none; }
  a:hover { color: #FF8FC4; }
  summary::-webkit-details-marker { display: none; }
  details[open] .mod-plus { transform: rotate(45deg); }
  ::selection { background: #FF57A8; color: #fff; }
  body { padding-bottom: 78px; }
  section { padding: 26px 32px !important; }
  section:first-of-type { padding-top: 72px !important; }
  section > div[style*="max-width: 1180px"]:not([data-nopanel]) {
    background: linear-gradient(180deg, rgba(255,255,255,.05) 0%, rgba(255,255,255,.015) 100%);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: 26px;
    box-shadow: 0 30px 70px rgba(0,0,0,.6), inset 0 1px 0 rgba(255,255,255,.07);
    padding: 64px 56px;
    overflow: hidden;
  }
  [data-btn] {
    border-radius: 999px !important;
    transition: transform .16s ease, box-shadow .16s ease, background .16s ease, color .16s ease;
  }
  [data-btn="primary"] { box-shadow: 0 12px 28px rgba(255,87,168,.38), inset 0 1px 0 rgba(255,255,255,.4); }
  [data-btn="primary"]:hover { transform: translateY(-2px); box-shadow: 0 18px 38px rgba(255,87,168,.5); }
  [data-btn="ghost"] { box-shadow: 0 10px 24px rgba(0,0,0,.5); }
  [data-btn="whats"] { box-shadow: 0 12px 26px rgba(37,211,102,.32), inset 0 1px 0 rgba(255,255,255,.35); }
  [data-btn="whats"]:hover { transform: translateY(-2px); background: #2ee574 !important; box-shadow: 0 18px 34px rgba(37,211,102,.42); }
  [data-btn="ghost"]:hover { transform: translateY(-2px); border-color: rgba(255,87,168,.65); color: #FF57A8; }
  @media (max-width: 680px) {
    section > div[style*="max-width: 1180px"]:not([data-nopanel]) { padding: 36px 22px; border-radius: 18px; }
  }

  @media (max-width: 1100px) {
    [style*="display: grid"] { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)) !important; }
    section { padding-left: 20px !important; padding-right: 20px !important; }
    header > div, footer > div { padding-left: 20px !important; padding-right: 20px !important; }
    h1 { font-size: 72px !important; }
    h2 { font-size: 34px !important; }
    h3 { font-size: 22px !important; }
    [style*="font-size: 76px"] { font-size: 44px !important; }
    [style*="font-size: 52px"], [style*="font-size: 44px; font-weight: 700"] { font-size: 36px !important; }
    header nav { display: none !important; }
    details summary { padding-left: 20px !important; padding-right: 20px !important; }
    details > div { padding-left: 20px !important; padding-right: 20px !important; }
  }

  @media (max-width: 680px) {
    [style*="display: grid"] { grid-template-columns: 1fr !important; }
    h1 { font-size: 46px !important; }
    h2 { font-size: 27px !important; }
    [style*="font-size: 76px"] { font-size: 32px !important; }
    [style*="font-size: 34px; font-weight: 700"] { font-size: 26px !important; }
    [style*="font-size: 26px; line-height: 1.3"] { font-size: 20px !important; }
    section { padding-top: 56px !important; padding-bottom: 56px !important; }
    details summary span[style*="font-size:13px"] { display: none !important; }
    a[href="#turma"], a[href="#programa"], a[href="#"] { width: 100%; text-align: center; }
  }