/* ============================================================
   TERAVENT HYBRID CARBON STANDARD — THS v1.0
   Stylesheet · Teravent Design System
   ============================================================ */

/* ── TOKENS ────────────────────────────────────────────────── */
:root {
  /* Palette — Hybrid: deep teal + amber */
  --c-navy: #0b1f17;
  --c-teal-dark: #1a4a3a;
  --c-teal-mid: #2e7d5e;
  --c-teal-light: #4ba07e;
  --c-teal-pale: #eaf5ee;
  --c-teal-xpale: #f3faf5;
  --c-amber: #b07a1a;
  --c-amber-mid: #d4951f;
  --c-amber-pale: #fff3dc;
  --c-gold: #c9a84c;
  --c-white: #ffffff;
  --c-ink: #1a2a22;
  --c-mid: #4a6556;
  --c-muted: #7a9a88;
  --c-border: #d0e4d8;
  --c-surface: #f6fcf8;

  /* Class colours */
  --cls-I: #2e7d5e;
  --cls-II: #b07a1a;
  --cls-III: #1a4a3a;

  /* Type */
  --f-display: "Cormorant Garamond", Georgia, serif;
  --f-body: "Instrument Sans", system-ui, sans-serif;
  --f-mono: "DM Mono", "Courier New", monospace;

  /* Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm:
    0 1px 3px rgba(26, 74, 58, 0.08), 0 1px 2px rgba(26, 74, 58, 0.06);
  --shadow-md:
    0 4px 12px rgba(26, 74, 58, 0.1), 0 2px 6px rgba(26, 74, 58, 0.06);
  --shadow-lg:
    0 12px 32px rgba(26, 74, 58, 0.12), 0 4px 12px rgba(26, 74, 58, 0.08);

  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── RESET ─────────────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  font-size: 16px;
}
body {
  font-family: var(--f-body);
  color: var(--c-ink);
  background: var(--c-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img,
svg {
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
table {
  border-collapse: collapse;
}

/* ── LAYOUT ────────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}
@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }
}

/* ── TYPOGRAPHY ────────────────────────────────────────────── */
.mono {
  font-family: var(--f-mono);
  font-size: 0.82rem;
}

/* ── BUTTONS ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: var(--f-body);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid transparent;
  white-space: nowrap;
}
.btn--primary {
  background: var(--c-teal-mid);
  color: var(--c-white);
  border-color: var(--c-teal-mid);
}
.btn--primary:hover {
  background: var(--c-teal-dark);
  border-color: var(--c-teal-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn--ghost {
  background: transparent;
  color: var(--c-white);
  border-color: rgba(255, 255, 255, 0.35);
}
.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
}
.btn--ghost-dark {
  background: transparent;
  color: var(--c-white);
  border-color: var(--c-border);
}
.btn--ghost-dark:hover {
  background: var(--c-teal-xpale);
  color: var(--teal-dark);
  border-color: var(--c-teal-mid);
}

/* ── BADGES ────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  border-radius: 100px;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
}
.badge--teal {
  background: var(--c-teal-mid);
  color: var(--c-white);
}
.badge--outline {
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

/* ── TAGS ──────────────────────────────────────────────────── */
.tag {
  display: inline-flex;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--c-teal-xpale);
  color: var(--c-teal-dark);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--c-border);
}

/* ── SECTION HEADER ────────────────────────────────────────── */
.section-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}
.section-header--light .section-header__eyebrow,
.section-header--light .section-header__title,
.section-header--light .section-header__sub {
  color: var(--c-white);
}
.section-header--light .section-header__sub {
  color: rgba(255, 255, 255, 0.7);
}

.section-header__eyebrow {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-teal-mid);
  margin-bottom: var(--space-md);
}
.section-header__title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 600;
  color: var(--c-ink);
  line-height: 1.15;
  margin-bottom: var(--space-md);
}
.section-header__sub {
  font-size: 1rem;
  color: var(--c-mid);
  max-width: 600px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ── NAV ────────────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 31, 23, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  transition: background var(--transition);
}
.nav.nav--scrolled {
  background: rgba(26, 74, 58, 0.97);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.25);
}
.nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  height: 64px;
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-shrink: 0;
}
.nav__logo-mark {
  width: 28px;
  height: 28px;
  background: var(--c-teal-mid);
  color: var(--c-white);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--f-display);
  font-size: 1rem;
  font-weight: 700;
}
.nav__logo-text {
  font-family: var(--f-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--c-white);
}
.nav__suite {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.08em;
  padding-left: var(--space-lg);
  border-left: 1px solid rgba(255, 255, 255, 0.15);
  white-space: nowrap;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
  margin-left: auto;
}
.nav__links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition);
  font-weight: 500;
}
.nav__links a:hover {
  color: var(--c-white);
}
.nav__cta {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--c-white);
  background: var(--c-teal-mid);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
  white-space: nowrap;
}
.nav__cta:hover {
  background: var(--c-teal-dark);
}
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  margin-left: auto;
}
.nav__burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: all var(--transition);
}

@media (max-width: 900px) {
  .nav__suite {
    display: none;
  }
  .nav__links,
  .nav__cta {
    display: none;
  }
  .nav__burger {
    display: flex;
  }
  .nav__links.nav__links--open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--c-navy);
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    z-index: 99;
  }
}

/* ── HERO ───────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--c-navy);
  padding-top: 64px;
}
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
}
.hero__orb--1 {
  width: 600px;
  height: 600px;
  top: -100px;
  right: -100px;
  background: radial-gradient(
    circle,
    rgba(46, 125, 94, 0.28) 0%,
    transparent 70%
  );
  animation: orb-drift 14s ease-in-out infinite alternate;
}
.hero__orb--2 {
  width: 400px;
  height: 400px;
  bottom: 0;
  left: -80px;
  background: radial-gradient(
    circle,
    rgba(176, 122, 26, 0.18) 0%,
    transparent 70%
  );
  animation: orb-drift 18s ease-in-out infinite alternate-reverse;
}
@keyframes orb-drift {
  from {
    transform: translate(0, 0) scale(1);
  }
  to {
    transform: translate(30px, 20px) scale(1.08);
  }
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(
    ellipse 80% 80% at 50% 50%,
    black 40%,
    transparent 100%
  );
}
.hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--space-3xl) var(--space-xl);
  max-width: 760px;
}
.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}
.hero__title {
  font-family: var(--f-display);
  font-size: clamp(3.2rem, 7vw, 5.5rem);
  font-weight: 600;
  line-height: 1.05;
  color: var(--c-white);
  margin-bottom: var(--space-xl);
  letter-spacing: -0.02em;
}
.hero__title em {
  font-style: italic;
  color: var(--c-gold);
}
.hero__sub {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.75;
  max-width: 560px;
  margin-bottom: var(--space-2xl);
}
.hero__meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}
.hero__meta-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero__meta-val {
  font-family: var(--f-mono);
  font-size: 1.1rem;
  color: var(--c-white);
  font-weight: 500;
}
.hero__meta-label {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero__meta-divider {
  width: 1px;
  height: 32px;
  background: rgba(255, 255, 255, 0.12);
}
.hero__actions {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.hero__scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255, 255, 255, 0.35);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--f-mono);
  transition: opacity var(--transition);
}

/* ── PREAMBLE ──────────────────────────────────────────────── */
.preamble {
  padding: var(--space-3xl) 0;
  background: var(--c-white);
}
.preamble__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}
@media (max-width: 768px) {
  .preamble__grid {
    grid-template-columns: 1fr;
  }
}
.preamble__text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--c-mid);
  margin-bottom: var(--space-lg);
}
.preamble__text strong {
  color: var(--c-ink);
  font-weight: 600;
}
.preamble__facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}
@media (max-width: 500px) {
  .preamble__facts {
    grid-template-columns: 1fr;
  }
}
.fact-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  transition: box-shadow var(--transition);
}
.fact-card:hover {
  box-shadow: var(--shadow-sm);
}
.fact-card__icon {
  width: 32px;
  height: 32px;
  color: var(--c-teal-mid);
  flex-shrink: 0;
}
.fact-card__icon svg {
  width: 100%;
  height: 100%;
}
.fact-card__label {
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-muted);
  margin-bottom: 2px;
  font-family: var(--f-mono);
}
.fact-card__val {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-ink);
}

/* ── DURABILITY ────────────────────────────────────────────── */
.durability {
  padding: var(--space-3xl) 0;
  background: var(--c-teal-xpale);
}
.dur-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}
@media (max-width: 768px) {
  .dur-cards {
    grid-template-columns: 1fr;
  }
}
.dur-card {
  padding: var(--space-xl);
  border-radius: var(--radius-lg);
  border: 1.5px solid var(--c-border);
  background: var(--c-white);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.dur-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}
.dur-card--I::before {
  background: var(--cls-I);
}
.dur-card--II::before {
  background: var(--cls-II);
}
.dur-card--III::before {
  background: var(--cls-III);
}
.dur-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.dur-card__class {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: var(--space-sm);
}
.dur-card--I .dur-card__class {
  color: var(--cls-I);
}
.dur-card--II .dur-card__class {
  color: var(--cls-II);
}
.dur-card--III .dur-card__class {
  color: var(--cls-III);
}
.dur-card__name {
  font-family: var(--f-display);
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: var(--space-xs);
}
.dur-card__horizon {
  font-family: var(--f-mono);
  font-size: 0.85rem;
  color: var(--c-muted);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--c-border);
}
.dur-card__desc {
  font-size: 0.9rem;
  color: var(--c-mid);
  line-height: 1.65;
  margin-bottom: var(--space-lg);
}
.dur-card__buffer {
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  margin-bottom: var(--space-md);
}
.dur-card--I .dur-card__buffer {
  background: rgba(46, 125, 94, 0.1);
  color: var(--cls-I);
}
.dur-card--II .dur-card__buffer {
  background: rgba(176, 122, 26, 0.1);
  color: var(--cls-II);
}
.dur-card--III .dur-card__buffer {
  background: rgba(26, 74, 58, 0.1);
  color: var(--cls-III);
}
.dur-card__examples {
  font-size: 0.78rem;
  color: var(--c-muted);
  font-style: italic;
  line-height: 1.5;
}
.dur-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-lg);
  background: rgba(26, 74, 58, 0.06);
  border: 1px solid rgba(26, 74, 58, 0.15);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  color: var(--c-mid);
  line-height: 1.65;
}
.dur-note svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--c-teal-mid);
}

/* ── MODULES ───────────────────────────────────────────────── */
.modules {
  padding: var(--space-3xl) 0;
  background: var(--c-white);
}
.module-list {
  display: grid;
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.module-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  background: var(--c-white);
  transition: background var(--transition);
  cursor: default;
}
.module-item:hover {
  background: var(--c-teal-xpale);
}
.module-item__num {
  font-family: var(--f-mono);
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--c-border);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: var(--space-xl) 0 var(--space-xl) var(--space-xl);
  transition: color var(--transition);
}
.module-item:hover .module-item__num {
  color: var(--c-teal-mid);
}
.module-item__body {
  padding: var(--space-xl);
  border-left: 1px solid var(--c-border);
}
.module-item__title {
  font-family: var(--f-display);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: var(--space-sm);
}
.module-item__desc {
  font-size: 0.9rem;
  color: var(--c-mid);
  line-height: 1.65;
  margin-bottom: var(--space-md);
}
.module-item__tags {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
}

/* ── PATHWAYS ──────────────────────────────────────────────── */
.pathways {
  padding: var(--space-3xl) 0;
  background: var(--c-navy);
}
.pathways .section-header__eyebrow {
  color: var(--c-gold);
}
.pathways .section-header__title {
  color: var(--c-white);
}
.pathways .section-header__sub {
  color: rgba(255, 255, 255, 0.6);
}

.pathway-filter {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}
.filter-btn {
  padding: 0.4rem 1rem;
  border-radius: 100px;
  font-family: var(--f-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  border: 1.5px solid rgba(255, 255, 255, 0.2);
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: all var(--transition);
}
.filter-btn:hover {
  border-color: rgba(255, 255, 255, 0.5);
  color: var(--c-white);
}
.filter-btn--active {
  background: var(--c-teal-mid);
  border-color: var(--c-teal-mid);
  color: var(--c-white);
}

.pathway-grid-hybrid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-lg);
}
.pw-card {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.pw-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  opacity: 0;
  transition: opacity var(--transition);
}
.pw-card[data-class="I"]::before {
  background: var(--cls-I);
}
.pw-card[data-class="II"]::before {
  background: var(--cls-II);
}
.pw-card[data-class="III"]::before {
  background: var(--cls-III);
}
.pw-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}
.pw-card:hover::before {
  opacity: 1;
}
.pw-card--hidden {
  display: none;
}

.pw-card__annex {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}
.pw-card__class {
  display: inline-flex;
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
  font-family: var(--f-mono);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-md);
}
.pw-card__class--I {
  background: rgba(46, 125, 94, 0.2);
  color: #7ecba6;
}
.pw-card__class--II {
  background: rgba(176, 122, 26, 0.2);
  color: #d4ac5a;
}
.pw-card__class--III {
  background: rgba(26, 74, 58, 0.3);
  color: #4ba07e;
}
.pw-card__title {
  font-family: var(--f-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--c-white);
  line-height: 1.3;
  margin-bottom: var(--space-md);
}
.pw-card__nature,
.pw-card__tech {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.5;
  margin-bottom: 2px;
}
.pw-card__nature::before {
  content: "🌿 ";
  font-size: 0.7rem;
}
.pw-card__tech::before {
  content: "⚙️ ";
  font-size: 0.7rem;
}
.pw-card__methods {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-family: var(--f-mono);
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.04em;
}

/* ── CREDITS BAND ──────────────────────────────────────────── */
.credits-band {
  padding: var(--space-3xl) 0;
  background: var(--c-white);
}

/* Serial demo */
.serial-demo {
  background: var(--c-navy);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  text-align: center;
}
.serial-demo__label {
  font-family: var(--f-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--space-lg);
}
.serial-demo__code {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px;
  font-family: var(--f-mono);
  font-size: clamp(0.7rem, 2vw, 1rem);
  margin-bottom: var(--space-lg);
}
.serial-seg {
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: transform var(--transition);
}
.serial-seg:hover {
  transform: translateY(-2px);
}
.serial-seg::after {
  content: attr(data-tip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.95);
  color: var(--c-ink);
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.68rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
  z-index: 10;
}
.serial-seg:hover::after {
  opacity: 1;
}
.serial-sep {
  color: rgba(255, 255, 255, 0.25);
  font-weight: 300;
}
.serial-seg--registry {
  background: rgba(46, 125, 94, 0.3);
  color: #7ecba6;
}
.serial-seg--standard {
  background: rgba(201, 168, 76, 0.25);
  color: var(--c-gold);
}
.serial-seg--pathway {
  background: rgba(75, 160, 126, 0.25);
  color: #7ecba6;
}
.serial-seg--country {
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.7);
}
.serial-seg--project {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.55);
}
.serial-seg--vintage {
  background: rgba(176, 122, 26, 0.25);
  color: var(--c-amber-mid);
}
.serial-seg--durability {
  background: rgba(176, 122, 26, 0.3);
  color: #d4ac5a;
}
.serial-seg--unit {
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.4);
}

.serial-demo__legend {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-family: var(--f-mono);
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.4);
}
.legend-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 4px;
}
.legend-dot--registry {
  background: #7ecba6;
}
.legend-dot--standard {
  background: var(--c-gold);
}
.legend-dot--pathway {
  background: #7ecba6;
}
.legend-dot--country {
  background: rgba(255, 255, 255, 0.4);
}
.legend-dot--project {
  background: rgba(255, 255, 255, 0.25);
}
.legend-dot--vintage {
  background: var(--c-amber-mid);
}
.legend-dot--durability {
  background: #d4ac5a;
}
.legend-dot--unit {
  background: rgba(255, 255, 255, 0.2);
}

/* Labels grid */
.labels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-md);
}
.label-card {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-md);
  background: var(--c-surface);
  transition: all var(--transition);
}
.label-card:hover {
  border-color: var(--c-teal-light);
  box-shadow: var(--shadow-sm);
  background: var(--c-teal-xpale);
}
.label-card__icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 7px;
}
.label-card__icon svg {
  width: 100%;
  height: 100%;
}
.label-card__icon--soil {
  background: rgba(46, 125, 94, 0.12);
  color: var(--c-teal-mid);
}
.label-card__icon--bio {
  background: rgba(46, 125, 94, 0.12);
  color: var(--c-teal-mid);
}
.label-card__icon--food {
  background: rgba(176, 122, 26, 0.12);
  color: var(--c-amber);
}
.label-card__icon--water {
  background: rgba(46, 125, 94, 0.12);
  color: var(--c-teal-mid);
}
.label-card__icon--live {
  background: rgba(176, 122, 26, 0.12);
  color: var(--c-amber);
}
.label-card__icon--frontier {
  background: rgba(201, 168, 76, 0.15);
  color: var(--c-gold);
}
.label-card__icon--gender {
  background: rgba(46, 125, 94, 0.12);
  color: var(--c-teal-mid);
}
.label-card__icon--indigenous {
  background: rgba(176, 122, 26, 0.12);
  color: var(--c-amber);
}
.label-card__content {
  flex: 1;
}
.label-card__name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--c-ink);
  margin-bottom: 4px;
}
.label-card__desc {
  font-size: 0.8rem;
  color: var(--c-mid);
  line-height: 1.56;
}

/* ── ANNEXES TABLE ─────────────────────────────────────────── */
.annexes {
  padding: var(--space-3xl) 0;
  background: var(--c-teal-xpale);
}
.annex-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
}
.annex-table {
  width: 100%;
  background: var(--c-white);
  font-size: 0.875rem;
}
.annex-table thead {
  background: var(--c-teal-dark);
  color: var(--c-white);
}
.annex-table th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-weight: 600;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-family: var(--f-mono);
  white-space: nowrap;
}
.annex-table td {
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--c-border);
  color: var(--c-mid);
  line-height: 1.5;
}
.annex-table tbody tr:last-child td {
  border-bottom: none;
}
.annex-table tbody tr:hover {
  background: var(--c-teal-xpale);
}
.annex-ref {
  font-family: var(--f-mono);
  font-weight: 600;
  color: var(--c-teal-dark) !important;
  font-size: 1rem !important;
  text-align: center;
}
.cls {
  display: inline-flex;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: var(--f-mono);
  font-size: 0.72rem;
  font-weight: 600;
  white-space: nowrap;
}
.cls--I {
  background: rgba(46, 125, 94, 0.12);
  color: var(--cls-I);
}
.cls--II {
  background: rgba(176, 122, 26, 0.12);
  color: var(--cls-II);
}
.cls--III {
  background: rgba(26, 74, 58, 0.12);
  color: var(--cls-III);
}

/* ── CTA SECTION ───────────────────────────────────────────── */
.cta-section {
  padding: var(--space-3xl) 0;
  background: var(--c-white);
}
.cta-box {
  background: var(--c-navy);
  border-radius: var(--radius-xl);
  padding: var(--space-3xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse 60% 60% at 50% 0%,
    rgba(46, 125, 94, 0.25) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.cta-box__badge {
  display: inline-flex;
  padding: 0.3rem 0.8rem;
  border-radius: 100px;
  font-family: var(--f-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  color: var(--c-gold);
  border: 1px solid rgba(201, 168, 76, 0.3);
  margin-bottom: var(--space-lg);
}
.cta-box__title {
  font-family: var(--f-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 600;
  color: var(--c-white);
  margin-bottom: var(--space-md);
}
.cta-box__sub {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.6);
  max-width: 520px;
  margin: 0 auto var(--space-2xl);
  line-height: 1.7;
}
.cta-box__actions {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}
.cta-box__companions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--f-mono);
}
.cta-box__companions a {
  color: rgba(255, 255, 255, 0.55);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--transition);
}
.cta-box__companions a:hover {
  color: var(--c-white);
}

/* ── FOOTER ────────────────────────────────────────────────── */
.footer {
  background: var(--c-navy);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: var(--space-2xl) 0 var(--space-xl);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr;
  }
}
.footer__brand {
}
.footer__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}
.footer__tagline {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
  font-family: var(--f-mono);
  line-height: 1.6;
}
.footer__cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}
@media (max-width: 600px) {
  .footer__cols {
    grid-template-columns: 1fr 1fr;
  }
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}
.footer__col-head {
  font-family: var(--f-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: var(--space-sm);
}
.footer__col a {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.55);
  transition: color var(--transition);
}
.footer__col a:hover {
  color: var(--c-white);
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-md);
  font-family: var(--f-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.25);
}

/* ── SCROLL REVEAL ─────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.55s ease,
    transform 0.55s ease;
}
.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}