/* ============================================================
   Imperium AI Unified Center — design system
   ============================================================ */

@import url('https://api.fontshare.com/v2/css?f[]=clash-display@500,600,700&f[]=satoshi@400,500,700,900&display=swap');

:root {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 4.5rem);

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);

  --content-narrow: 680px;
  --content-default: 1000px;
  --content-wide: 1240px;

  --font-display: 'Clash Display', 'Satoshi', system-ui, sans-serif;
  --font-body: 'Satoshi', 'Helvetica Neue', system-ui, sans-serif;
}

/* ---------- Light (default) ---------- */
:root,
[data-theme='light'] {
  --color-bg: #fbfbfd;
  --color-surface: #ffffff;
  --color-surface-2: #f7f8fc;
  --color-surface-offset: #f1f3f9;
  --color-surface-offset-2: #e9ecf4;
  --color-divider: #e4e7ef;
  --color-border: #d9dde8;

  --color-text: #0b1020;
  --color-text-muted: #56607a;
  --color-text-faint: #939bb0;
  --color-text-inverse: #fbfbfd;

  --color-primary: #3b30d9;
  --color-primary-hover: #2f26b0;
  --color-primary-active: #241d85;
  --color-primary-soft: #eeecfd;
  --color-primary-line: #cfcaf8;

  --color-noc: #0b7f93;
  --color-noc-soft: #e2f4f7;
  --color-soc: #c01a58;
  --color-soc-soft: #fce8ef;
  --color-dex: #9a6208;
  --color-dex-soft: #fbf0dd;
  --color-fow: #6d28d9;
  --color-fow-soft: #f0e9fd;
  --color-sd: #0b63c5;
  --color-sd-soft: #e5eefb;
  --color-svc: #0c7358;
  --color-svc-soft: #e2f5ef;

  --color-ink-panel: #0b1020;
  --color-ink-panel-2: #151b31;
  --color-ink-text: #e7e9f2;
  --color-ink-muted: #98a0ba;
  --color-ink-border: #262d47;

  --shadow-sm: 0 1px 2px rgba(11, 16, 32, 0.06);
  --shadow-md: 0 6px 20px rgba(11, 16, 32, 0.07);
  --shadow-lg: 0 20px 48px rgba(11, 16, 32, 0.1);
  --glass: rgba(251, 251, 253, 0.82);
}

/* ---------- Dark ---------- */
[data-theme='dark'] {
  --color-bg: #0a0c14;
  --color-surface: #10131e;
  --color-surface-2: #141827;
  --color-surface-offset: #12151f;
  --color-surface-offset-2: #191d2c;
  --color-divider: #1d2233;
  --color-border: #2a3145;

  --color-text: #e6e9f2;
  --color-text-muted: #98a1b8;
  --color-text-faint: #646d84;
  --color-text-inverse: #0a0c14;

  --color-primary: #8b84ff;
  --color-primary-hover: #a49dff;
  --color-primary-active: #b8b2ff;
  --color-primary-soft: #1a1c3a;
  --color-primary-line: #33356b;

  --color-noc: #3fc7dc;
  --color-noc-soft: #0e2a31;
  --color-soc: #ff6f9d;
  --color-soc-soft: #331020;
  --color-dex: #e6ad46;
  --color-dex-soft: #2e2410;
  --color-fow: #a78bfa;
  --color-fow-soft: #221a3c;
  --color-sd: #62a8ff;
  --color-sd-soft: #0e2440;
  --color-svc: #34d399;
  --color-svc-soft: #0d2b23;

  --color-ink-panel: #10131e;
  --color-ink-panel-2: #171c2c;
  --color-ink-text: #e6e9f2;
  --color-ink-muted: #98a1b8;
  --color-ink-border: #2a3145;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 20px 48px rgba(0, 0, 0, 0.55);
  --glass: rgba(10, 12, 20, 0.8);
}

/* ============================================================
   Base
   ============================================================ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem;
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

img,
picture,
video,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}
ul[role='list'] {
  list-style: none;
}
input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}
button {
  cursor: pointer;
  background: none;
  border: none;
}
a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
p {
  text-wrap: pretty;
}

::selection {
  background: var(--color-primary-soft);
  color: var(--color-text);
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

a,
button,
input,
textarea,
select,
.card {
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================================================
   Layout primitives
   ============================================================ */
.wrap {
  width: min(100% - 2.5rem, var(--content-wide));
  margin-inline: auto;
}
.wrap-narrow {
  width: min(100% - 2.5rem, var(--content-default));
  margin-inline: auto;
}
.section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
}
.section-tight {
  padding-block: clamp(var(--space-12), 5vw, var(--space-20));
}
.section-alt {
  background: var(--color-surface-2);
  border-block: 1px solid var(--color-divider);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.eyebrow::before {
  content: '';
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  opacity: 0.6;
}
.eyebrow.no-rule::before {
  display: none;
}

.section-head {
  max-width: 62ch;
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
}
.section-head h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-4);
}
.section-head p {
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 60ch;
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}
.section-head--center .eyebrow::before {
  display: none;
}
.section-head--center p {
  margin-inline: auto;
}

.lede {
  font-size: var(--text-lg);
  line-height: 1.5;
  color: var(--color-text-muted);
  max-width: 58ch;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: -0.005em;
  padding: 0.8rem 1.4rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn svg {
  flex: none;
}
.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
[data-theme='dark'] .btn-primary {
  color: #0a0c14;
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  border-color: var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.btn-onink {
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
}
.btn-onink:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-sm {
  padding: 0.55rem 1rem;
}
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-8);
}

.textlink {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--color-primary);
}
.textlink svg {
  transition: transform var(--transition-interactive);
}
.textlink:hover svg {
  transform: translateX(4px);
}

/* ============================================================
   Header
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive);
}
.header.is-scrolled {
  border-bottom-color: var(--color-divider);
  box-shadow: var(--shadow-sm);
}
.header-inner {
  width: min(100% - 2.5rem, var(--content-wide));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: 4.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: none;
}
.brand-mark {
  display: block;
  height: 2.1rem;
  width: auto;
  flex: none;
}
.footer .brand-mark {
  height: 2.35rem;
}
/* Official Imperium wordmark, rendered from the brand artwork so the
   letterforms are exact. Recoloured with currentColor per theme. */
.brand-word {
  display: block;
  height: 0.98rem;
  width: calc(0.98rem * (1736 / 210));
  flex: none;
  background-color: currentColor;
  -webkit-mask: url("../assets/img/imperium-word.png") center / contain no-repeat;
  mask: url("../assets/img/imperium-word.png") center / contain no-repeat;
}
.brand-stack {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.footer .brand-word {
  height: 1.02rem;
  width: calc(1.02rem * (1736 / 210));
  background-color: #fff;
}
.brand-sub {
  font-size: 0.6875rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* Colour mark on light, white mark on dark */
.brand-mark--white {
  display: none;
}
[data-theme="dark"] .brand-mark--colour {
  display: none;
}
[data-theme="dark"] .brand-mark--white {
  display: block;
}
/* the footer is always on ink, so it always takes the white mark */
.footer .brand-mark--colour {
  display: none;
}
.footer .brand-mark--white {
  display: block;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-left: auto;
}
.nav a {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.45rem 0.55rem;
  border-radius: var(--radius-full);
  white-space: nowrap;
}
.nav a:hover {
  color: var(--color-text);
  background: var(--color-surface-offset);
}
.nav a.is-active {
  color: var(--color-primary);
  background: var(--color-primary-soft);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: none;
}
.icon-btn {
  display: grid;
  place-items: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  background: var(--color-surface);
}
.icon-btn:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.nav-toggle {
  display: none;
}

@media (max-width: 1260px) {
  .nav {
    position: fixed;
    inset: 4.5rem 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-divider);
    padding: var(--space-3) var(--space-5) var(--space-6);
    box-shadow: var(--shadow-lg);
    transform: translateY(-130%);
    transition: transform 320ms cubic-bezier(0.16, 1, 0.3, 1);
    max-height: calc(100dvh - 4.5rem);
    overflow-y: auto;
  }
  .nav.is-open {
    transform: translateY(0);
  }
  .nav a {
    padding: 0.85rem 0.6rem;
    font-size: 1rem;
    border-bottom: 1px solid var(--color-divider);
    border-radius: 0;
  }
  .nav-toggle {
    display: grid;
  }
  .header-cta {
    display: none;
  }
}

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  overflow: hidden;
  padding-block: clamp(var(--space-16), 7vw, var(--space-24)) 0;
}
.hero::before {
  content: '';
  position: absolute;
  inset: -20% -10% auto -10%;
  height: 70%;
  background: radial-gradient(
    60% 60% at 50% 0%,
    var(--color-primary-soft) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.hero-inner {
  position: relative;
  width: min(100% - 2.5rem, var(--content-wide));
  margin-inline: auto;
}
.hero-copy {
  max-width: 56rem;
}
.hero h1 {
  font-size: var(--text-3xl);
  margin-top: var(--space-5);
  font-weight: 600;
  max-width: 18ch;
}
.hero .lede {
  margin-top: var(--space-6);
  max-width: 60ch;
}
.hero-media {
  margin-top: clamp(var(--space-10), 5vw, var(--space-16));
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  position: relative;
  aspect-ratio: 21 / 9;
}
.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-grad {
  background: linear-gradient(
    100deg,
    var(--color-primary) 0%,
    #7b3fd4 45%,
    var(--color-soc) 100%
  );
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Page hero (interior) */
.phero {
  position: relative;
  border-bottom: 1px solid var(--color-divider);
  overflow: hidden;
}
.phero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  align-items: center;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  padding-block: clamp(var(--space-12), 6vw, var(--space-24));
}
.phero h1 {
  font-size: var(--text-2xl);
  margin-top: var(--space-5);
}
.phero .lede {
  margin-top: var(--space-5);
}
.phero-img {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}
.phero-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
@media (max-width: 900px) {
  .phero-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Stat strip
   ============================================================ */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1px;
  background: var(--color-divider);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: clamp(var(--space-10), 4vw, var(--space-16));
}
.stat {
  background: var(--color-surface);
  padding: var(--space-6) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1.45vw, 1.5rem);
  line-height: 1.16;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
  text-wrap: balance;
}
.stat-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: auto;
  letter-spacing: 0.02em;
  line-height: 1.45;
}

/* ============================================================
   Framework diagram
   ============================================================ */
.fw {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  padding: clamp(var(--space-5), 3vw, var(--space-10));
  box-shadow: var(--shadow-md);
}
.fw-layer + .fw-layer {
  margin-top: var(--space-4);
}
.fw-label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.fw-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-divider);
}
.fw-band {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}
.fw-chip {
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  text-align: center;
}
.fw-domains {
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(5, 1fr);
}
@media (max-width: 1080px) {
  .fw-domains {
    grid-template-columns: repeat(3, 1fr);
  }
}
@media (max-width: 820px) {
  .fw-domains {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 460px) {
  .fw-domains {
    grid-template-columns: 1fr;
  }
}
.fw-domain {
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  position: relative;
  overflow: hidden;
}
.fw-domain::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--accent, var(--color-primary));
}
.fw-domain h4 {
  font-size: 0.95rem;
  font-family: var(--font-body);
  font-weight: 700;
  color: var(--accent, var(--color-primary));
  letter-spacing: 0;
}
.fw-domain p {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.fw-core {
  background: var(--color-ink-panel);
  color: var(--color-ink-text);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  align-items: center;
}
.fw-core .fw-core-title {
  grid-column: 1 / -1;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
  color: #fff;
}
.fw-core-chip {
  border: 1px solid var(--color-ink-border);
  background: var(--color-ink-panel-2);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-ink-muted);
  text-align: center;
}
.fw-arrow {
  display: block;
  margin: var(--space-3) auto;
  color: var(--color-text-faint);
}

/* ============================================================
   Cards
   ============================================================ */
.grid {
  display: grid;
  gap: clamp(var(--space-4), 2vw, var(--space-6));
}
.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}
.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}
.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
}

.grid-2x2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 700px) {
  .grid-2x2 {
    grid-template-columns: minmax(0, 1fr);
  }
}

/* Component grid: six cards in a 3 x 2 arrangement */
.grid-domains {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 1080px) {
  .grid-domains {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  .grid-domains {
    grid-template-columns: minmax(0, 1fr);
  }
}

.grid-5 {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}
@media (max-width: 1080px) {
  .grid-5 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
@media (max-width: 700px) {
  .grid-5 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 460px) {
  .grid-5 {
    grid-template-columns: minmax(0, 1fr);
  }
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  height: 100%;
}
a.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent, var(--color-primary));
}
.card-media {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--color-surface-offset);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 600ms cubic-bezier(0.16, 1, 0.3, 1);
}
a.card:hover .card-media img {
  transform: scale(1.05);
}
.card-body {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
}
.card-body h3 {
  font-size: var(--text-lg);
}
.card-body p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.card-foot {
  margin-top: auto;
  padding-top: var(--space-2);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  align-self: flex-start;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-full);
  color: var(--accent, var(--color-primary));
  background: var(--accent-soft, var(--color-primary-soft));
}

/* Feature (icon) cards */
.fcard {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  height: 100%;
}
.fcard-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  color: var(--accent, var(--color-primary));
  background: var(--accent-soft, var(--color-primary-soft));
  margin-bottom: var(--space-1);
}
.fcard h3 {
  font-size: 1.0625rem;
  font-family: var(--font-body);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.fcard p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.fcard ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-1);
}
.fcard li {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding-left: 1.1rem;
  position: relative;
}
.fcard li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent, var(--color-primary));
}

/* ============================================================
   Split / alternating feature sections
   ============================================================ */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(var(--space-8), 5vw, var(--space-20));
  align-items: center;
}
.split + .split {
  margin-top: clamp(var(--space-16), 8vw, var(--space-32));
}
.split-media {
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
}
.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.split.reverse .split-media {
  order: 2;
}
.split h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-4);
}
.split p.lead {
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}
.split-list {
  list-style: none;
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-8);
}
.split-list li {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3);
  align-items: start;
}
.split-list .li-mark {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: var(--radius-sm);
  display: grid;
  place-items: center;
  background: var(--accent-soft, var(--color-primary-soft));
  color: var(--accent, var(--color-primary));
  margin-top: 0.15rem;
}
.split-list strong {
  display: block;
  font-size: var(--text-sm);
  font-weight: 700;
}
.split-list span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
@media (max-width: 900px) {
  .split {
    grid-template-columns: 1fr;
  }
  .split.reverse .split-media {
    order: 0;
  }
}

/* ============================================================
   Ink (dark) band
   ============================================================ */
.ink {
  background: var(--color-ink-panel);
  color: var(--color-ink-text);
  position: relative;
  overflow: hidden;
}
.ink h2,
.ink h3 {
  color: #fff;
}
.ink p {
  color: var(--color-ink-muted);
}
.ink .eyebrow {
  color: var(--color-primary);
}
[data-theme='light'] .ink .eyebrow {
  color: #a49dff;
}
.ink .fcard {
  background: var(--color-ink-panel-2);
  border-color: var(--color-ink-border);
}
.ink .fcard h3 {
  color: #fff;
}
.ink .fcard p,
.ink .fcard li {
  color: var(--color-ink-muted);
}
.ink .stats {
  background: var(--color-ink-border);
  border-color: var(--color-ink-border);
}
.ink .stat {
  background: var(--color-ink-panel-2);
}
.ink .stat-num {
  color: #fff;
}
.ink .stat-label {
  color: var(--color-ink-muted);
}

/* ============================================================
   Steps / roadmap
   ============================================================ */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-6);
  counter-reset: step;
}
.step {
  position: relative;
  padding-top: var(--space-8);
  border-top: 2px solid var(--color-divider);
}
.step::before {
  counter-increment: step;
  content: '0' counter(step);
  position: absolute;
  top: var(--space-3);
  left: 0;
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-primary);
}
.step::after {
  content: '';
  position: absolute;
  top: -2px;
  left: 0;
  width: 2.5rem;
  height: 2px;
  background: var(--color-primary);
}
.step h3 {
  font-size: 1.0625rem;
  font-family: var(--font-body);
  font-weight: 700;
}
.step p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ============================================================
   Use case table
   ============================================================ */
.utable {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-surface);
}
.urow {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr 1fr;
  gap: var(--space-5);
  padding: var(--space-5) var(--space-6);
  align-items: start;
}
.urow + .urow {
  border-top: 1px solid var(--color-divider);
}
.urow-head {
  background: var(--color-surface-offset);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  padding-block: var(--space-3);
}
.urow strong {
  font-size: var(--text-sm);
  font-weight: 700;
  display: block;
}
.urow span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.urow .outcome {
  font-size: var(--text-sm);
  font-weight: 700;
  color: var(--accent, var(--color-primary));
}
@media (max-width: 800px) {
  .urow {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
  .urow-head {
    display: none;
  }
}

/* ============================================================
   CTA band
   ============================================================ */
.cta {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  padding: clamp(var(--space-10), 6vw, var(--space-24));
  background: var(--color-surface-offset);
}
.cta img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
}
.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(
    100deg,
    var(--color-bg) 8%,
    color-mix(in srgb, var(--color-bg) 78%, transparent) 48%,
    transparent 88%
  );
}
.cta h2 {
  font-size: var(--text-xl);
  max-width: 18ch;
}
.cta p {
  color: var(--color-text-muted);
  margin-top: var(--space-4);
  max-width: 46ch;
}

/* ============================================================
   Contact
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(var(--space-8), 4vw, var(--space-16));
  align-items: start;
}
@media (max-width: 900px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
.form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 3vw, var(--space-10));
  box-shadow: var(--shadow-md);
}
.field {
  display: grid;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 560px) {
  .field-row {
    grid-template-columns: 1fr;
  }
}
label {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
label .req {
  color: var(--color-soc);
}
input,
select,
textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg);
  font-size: var(--text-sm);
}
input:focus,
select:focus,
textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
  outline: none;
}
textarea {
  resize: vertical;
  min-height: 8rem;
}
.form-note {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  margin-top: var(--space-4);
}
.form-status {
  display: none;
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  background: var(--color-svc-soft);
  color: var(--color-svc);
  font-size: var(--text-sm);
  font-weight: 600;
}
.form-status.is-visible {
  display: block;
}

.info-block {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  padding: var(--space-6);
}
.info-block + .info-block {
  margin-top: var(--space-4);
}
.info-block h3 {
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 700;
}
.info-block p,
.info-block a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}
.info-block a {
  color: var(--color-primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}
.info-block a svg {
  flex: none;
  transition: transform 220ms cubic-bezier(0.16, 1, 0.3, 1);
}
.info-block a:hover svg {
  transform: translateX(3px);
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  background: var(--color-ink-panel);
  color: var(--color-ink-muted);
  padding-block: var(--space-16) var(--space-8);
  font-size: var(--text-sm);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-10);
}
@media (max-width: 860px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 520px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}
.footer .brand-name,
.footer h4 {
  color: #fff;
}
.footer .brand-sub {
  color: var(--color-ink-muted);
}
.footer p {
  margin-top: var(--space-4);
  max-width: 34ch;
  color: var(--color-ink-muted);
}
.footer h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
}
.footer ul {
  list-style: none;
  display: grid;
  gap: var(--space-3);
}
.footer ul a {
  color: var(--color-ink-muted);
  font-size: var(--text-sm);
}
.footer ul a:hover {
  color: #fff;
}
.footer-base {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-ink-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
}

/* ============================================================
   Scroll reveal
   ============================================================ */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 700ms cubic-bezier(0.16, 1, 0.3, 1),
    transform 700ms cubic-bezier(0.16, 1, 0.3, 1);
}
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Accent scopes */
.acc-noc {
  --accent: var(--color-noc);
  --accent-soft: var(--color-noc-soft);
}
.acc-soc {
  --accent: var(--color-soc);
  --accent-soft: var(--color-soc-soft);
}
.acc-dex {
  --accent: var(--color-dex);
  --accent-soft: var(--color-dex-soft);
}
.acc-fow {
  --accent: var(--color-fow);
  --accent-soft: var(--color-fow-soft);
}
.acc-sd {
  --accent: var(--color-sd);
  --accent-soft: var(--color-sd-soft);
}
.acc-svc {
  --accent: var(--color-svc);
  --accent-soft: var(--color-svc-soft);
}
.acc-noc .eyebrow,
.acc-soc .eyebrow,
.acc-dex .eyebrow,
.acc-fow .eyebrow,
.acc-sd .eyebrow,
.acc-svc .eyebrow {
  color: var(--accent);
}
.acc-noc .textlink,
.acc-soc .textlink,
.acc-dex .textlink,
.acc-fow .textlink,
.acc-sd .textlink,
.acc-svc .textlink {
  color: var(--accent);
}
.acc-noc .btn-primary,
.acc-soc .btn-primary,
.acc-dex .btn-primary,
.acc-fow .btn-primary,
.acc-sd .btn-primary,
.acc-svc .btn-primary {
  background: var(--accent);
}
.acc-noc .step::before,
.acc-noc .step::after,
.acc-soc .step::before,
.acc-soc .step::after,
.acc-dex .step::before,
.acc-dex .step::after,
.acc-fow .step::before,
.acc-sd .step::before,
.acc-fow .step::after,
.acc-sd .step::after,
.acc-svc .step::before,
.acc-svc .step::after {
  color: var(--accent);
  background-color: var(--accent);
}
.acc-noc .step::before,
.acc-soc .step::before,
.acc-dex .step::before,
.acc-fow .step::before,
.acc-sd .step::before,
.acc-svc .step::before {
  background: none;
}

/* --- hero tagline band --- */
.tagband {
  margin-top: clamp(1.6rem, 3vw, 2.6rem);
  padding: clamp(0.85rem, 1.6vw, 1.15rem) clamp(1.2rem, 3vw, 2rem);
  border: 1px solid var(--accent-soft, var(--color-border));
  border-radius: var(--radius-pill, 999px);
  background: var(--color-surface);
  text-align: center;
  font-family: var(--font-body);
  font-size: clamp(0.74rem, 0.92vw, 0.86rem);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent, var(--color-text));
  line-height: 1.6;
  text-wrap: balance;
}
@media (max-width: 640px) {
  .tagband { border-radius: var(--radius-lg, 18px); letter-spacing: 0.1em; }
}

/* ============================================================
   Privacy / policy pages
   ============================================================ */
.toc {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}
.toc-eyebrow {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-faint);
  margin-bottom: var(--space-3);
}
.toc ul {
  list-style: none;
  display: grid;
  gap: var(--space-2);
}
.toc li a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--color-divider);
  transition: color var(--transition-interactive), padding-left var(--transition-interactive);
}
.toc li a::before {
  content: '';
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-primary-line);
  flex: none;
  transition: transform var(--transition-interactive), background var(--transition-interactive);
}
.toc li a:hover {
  color: var(--color-primary);
  padding-left: var(--space-2);
}
.toc li a:hover::before {
  background: var(--color-primary);
  transform: scale(1.4);
}

.topic {
  margin-bottom: var(--space-4);
}
.topic h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-2);
}
.topic-lede {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 56ch;
  margin-top: var(--space-3);
  line-height: 1.6;
}

.topic-card {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-5);
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  margin-bottom: var(--space-4);
}
.topic-card:last-child {
  margin-bottom: 0;
}

.topic-icon {
  width: 2.75rem;
  height: 2.75rem;
  display: grid;
  place-items: center;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}
.topic-icon svg {
  stroke-width: 1.8;
}

.topic-card > div h3 {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 700;
  letter-spacing: -0.01em;
}
.topic-card > div p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-top: var(--space-2);
}

/* Compact list variant */
.topic-list ul[role='list'] {
  list-style: none;
  display: grid;
  gap: var(--space-3);
}
.topic-list li {
  position: relative;
  padding-left: 1.4rem;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}
.topic-list li::before {
  counter-increment: bullet;
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.7;
}

/* --- responsive: privacy pages --- */
@media (max-width: 700px) {
  .topic-card {
    grid-template-columns: 1fr;
    gap: var(--space-3);
    padding: var(--space-4);
  }
  .topic-icon {
    width: 2.25rem;
    height: 2.25rem;
  }
  .toc {
    padding: var(--space-4);
  }
}