/* =========================================================
   SovCloud — Strategic Domain Asset
   Custom palette: deep ink navy + parchment ivory + warm gold
   Typography: Fraunces (display serif) + Inter Tight (body)
   ========================================================= */

:root,
[data-theme='light'] {
  /* Surfaces — warm parchment */
  --color-bg: #f4ece0;
  --color-surface: #f8f1e6;
  --color-surface-2: #fbf6ed;
  --color-surface-offset: #ece3d3;
  --color-surface-offset-2: #e2d6c0;
  --color-divider: #d9cdb5;
  --color-border: #c9bb9f;

  /* Ink — deep navy/charcoal (stable across modes) */
  --color-ink: #0b1622;
  --color-ink-2: #142235;
  --color-text: #0b1622;
  --color-text-muted: #5a6470;
  --color-text-faint: #98998f;
  --color-text-inverse: #f4ece0;

  /* Primary button: high-contrast against surface (dark in light mode, light in dark mode) */
  --btn-primary-bg: #0b1622;
  --btn-primary-text: #f4ece0;

  /* Accent — restrained warm gold (sovereign, not glitzy) */
  --color-gold: #b08a3e;
  --color-gold-hover: #8c6c2c;
  --color-gold-active: #6d521e;
  --color-gold-faint: #d8c79a;

  --color-primary: var(--color-ink);
  --color-primary-hover: var(--color-ink-2);

  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.2vw, 0.9375rem);
  --text-base: clamp(1rem, 0.97rem + 0.15vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1.05rem + 0.4vw, 1.3125rem);
  --text-xl: clamp(1.5rem, 1.3rem + 1vw, 2.125rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.4vw, 3.25rem);
  --text-3xl: clamp(2.5rem, 1.6rem + 3.6vw, 4.5rem);
  --text-hero: clamp(2.75rem, 1rem + 6vw, 6.25rem);

  /* 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: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.875rem;

  --content-narrow: 720px;
  --content-default: 1120px;
  --content-wide: 1280px;

  --transition-interactive: 220ms cubic-bezier(0.2, 0.7, 0.2, 1);

  --shadow-sm: 0 1px 2px rgba(11, 22, 34, 0.06);
  --shadow-md: 0 6px 24px rgba(11, 22, 34, 0.08);
  --shadow-lg: 0 24px 56px rgba(11, 22, 34, 0.12);

  --font-display: 'Fraunces', 'Times New Roman', Georgia, serif;
  --font-body: 'Inter Tight', 'Helvetica Neue', system-ui, sans-serif;
}

[data-theme='dark'] {
  --color-bg: #0a121b;
  --color-surface: #0e1824;
  --color-surface-2: #122031;
  --color-surface-offset: #16263b;
  --color-surface-offset-2: #1c2e44;
  --color-divider: #1d2c40;
  --color-border: #2a3b52;

  --color-text: #ece3d0;
  --color-text-muted: #94a0b1;
  --color-text-faint: #5a6878;
  --color-text-inverse: #0b1622;

  --btn-primary-bg: #ece3d0;
  --btn-primary-text: #0b1622;

  --color-gold: #d3ad62;
  --color-gold-hover: #e6c283;
  --color-gold-active: #f0d29c;
  --color-gold-faint: #4a3d22;

  --color-primary: #ece3d0;
  --color-primary-hover: #f4ece0;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 24px 56px rgba(0, 0, 0, 0.6);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #0a121b;
    --color-surface: #0e1824;
    --color-surface-2: #122031;
    --color-surface-offset: #16263b;
    --color-surface-offset-2: #1c2e44;
    --color-divider: #1d2c40;
    --color-border: #2a3b52;
    --color-text: #ece3d0;
    --color-text-muted: #94a0b1;
    --color-text-faint: #5a6878;
    --color-text-inverse: #0b1622;
    --btn-primary-bg: #ece3d0;
    --btn-primary-text: #0b1622;
    --color-gold: #d3ad62;
    --color-gold-hover: #e6c283;
    --color-gold-faint: #4a3d22;
    --color-primary: #ece3d0;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 6px 24px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 24px 56px rgba(0, 0, 0, 0.6);
  }
}

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

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.55;
  color: var(--color-text);
  background-color: var(--color-bg);
  font-feature-settings: 'ss01', 'cv11';
  background-image:
    radial-gradient(
      ellipse at top right,
      rgba(176, 138, 62, 0.08),
      transparent 50%
    ),
    radial-gradient(
      ellipse at 10% 0%,
      rgba(11, 22, 34, 0.06),
      transparent 60%
    );
}

[data-theme='dark'] body {
  background-image:
    radial-gradient(
      ellipse at top right,
      rgba(211, 173, 98, 0.06),
      transparent 50%
    ),
    radial-gradient(
      ellipse at 10% 0%,
      rgba(236, 227, 208, 0.04),
      transparent 60%
    );
}

img,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
  transition:
    color var(--transition-interactive),
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    opacity var(--transition-interactive);
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  background: none;
  border: none;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.01em;
  text-wrap: balance;
  color: var(--color-text);
}

p {
  text-wrap: pretty;
  max-width: 64ch;
}

::selection {
  background: var(--color-gold);
  color: var(--color-ink);
}

:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--color-ink);
  color: var(--color-text-inverse);
  padding: var(--space-3) var(--space-4);
  z-index: 1000;
}
.skip:focus {
  left: var(--space-4);
  top: var(--space-4);
}

.container {
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

.muted {
  color: var(--color-text-muted);
}

/* ---------------- header ---------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid color-mix(in oklab, var(--color-border) 50%, transparent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  padding-block: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
}

.brand-mark {
  width: 30px;
  height: 30px;
  color: var(--color-text);
}

.brand-wordmark {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.25rem;
  letter-spacing: -0.005em;
}
.brand-sov {
  color: var(--color-text);
}
.brand-cloud {
  color: var(--color-text-muted);
  font-style: italic;
  font-weight: 400;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-8);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

.site-nav a {
  color: var(--color-text-muted);
  position: relative;
  padding-block: var(--space-2);
}
.site-nav a:hover {
  color: var(--color-text);
}
.site-nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width var(--transition-interactive);
}
.site-nav a:hover::after {
  width: 100%;
}

.nav-cta {
  border: 1px solid var(--color-border);
  padding: var(--space-2) var(--space-4);
  border-radius: 999px;
  color: var(--color-text) !important;
}
.nav-cta:hover {
  background: var(--color-ink);
  color: var(--color-text-inverse) !important;
  border-color: var(--color-ink);
}
[data-theme='dark'] .nav-cta:hover {
  background: var(--color-text);
  color: var(--color-ink) !important;
  border-color: var(--color-text);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}
.nav-toggle span {
  width: 22px;
  height: 1.5px;
  background: var(--color-text);
  transition: transform var(--transition-interactive);
}

/* ---------------- buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid transparent;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive);
  white-space: nowrap;
}

.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: 0.95rem;
}

.btn-primary {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  border-color: var(--btn-primary-bg);
}
.btn-primary:hover {
  background: color-mix(in oklab, var(--btn-primary-bg) 90%, var(--color-gold));
  border-color: color-mix(in oklab, var(--btn-primary-bg) 90%, var(--color-gold));
  transform: translateY(-1px);
}

.btn-gold {
  background: var(--color-gold);
  color: #1b1408;
  border-color: var(--color-gold);
}
.btn-gold:hover {
  background: var(--color-gold-hover);
  border-color: var(--color-gold-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}
.btn-ghost:hover {
  border-color: var(--color-text);
  background: color-mix(in oklab, var(--color-text) 5%, transparent);
}

/* ---------------- hero ---------------- */
.hero {
  position: relative;
  padding-top: clamp(var(--space-16), 10vw, var(--space-32));
  padding-bottom: clamp(var(--space-16), 10vw, var(--space-32));
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(var(--space-8), 6vw, var(--space-16));
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-muted);
  font-weight: 500;
}
.eyebrow-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  border-radius: 50%;
}

.hero-title {
  margin-top: var(--space-5);
  font-size: var(--text-hero);
  line-height: 0.98;
  letter-spacing: -0.025em;
  font-weight: 350;
}
.hero-title em {
  font-style: italic;
  font-family: var(--font-display);
  font-feature-settings: 'ss01';
  color: var(--color-gold);
  font-weight: 400;
}

.hero-lede {
  margin-top: var(--space-6);
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--color-text-muted);
  max-width: 56ch;
}

.hero-cta {
  margin-top: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero-meta {
  margin-top: var(--space-12);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
  max-width: 600px;
}
.hero-meta dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-faint);
  font-weight: 500;
  margin-bottom: var(--space-1);
}
.hero-meta dd {
  font-family: var(--font-display);
  font-size: 1.0625rem;
  font-weight: 500;
}
.hero-meta dd .muted {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.85rem;
}

/* hero card */
.hero-card {
  position: relative;
  padding: var(--space-2);
  isolation: isolate;
}

.card-frame {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  box-shadow: var(--shadow-lg);
  z-index: 2;
}

.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-muted);
}
.card-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-gold);
  font-weight: 500;
}
.card-status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
}

.card-domain {
  margin-top: var(--space-6);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}
.card-domain .dot {
  display: none;
}

.tld-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  width: 100%;
}
.tld-line {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 1.1rem + 1.5vw, 2rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.05;
}
.tld-line em {
  font-style: normal;
  color: var(--color-text);
}
.tld-line span {
  color: var(--color-gold);
  font-style: italic;
}
.tld-line.muted em,
.tld-line.muted span {
  color: var(--color-text-muted);
}

.card-rule {
  border: none;
  border-top: 1px solid var(--color-divider);
  margin: var(--space-6) 0;
}

.card-attrs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4) var(--space-6);
}
.card-attrs > div {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}
.card-attrs span {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-text-faint);
  font-weight: 500;
}
.card-attrs strong {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1rem;
}

.card-foot {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.card-glyph {
  position: absolute;
  right: -40px;
  top: -40px;
  width: 240px;
  height: 240px;
  color: var(--color-gold);
  opacity: 0.35;
  z-index: 1;
  pointer-events: none;
}

.horizon {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent 0%,
    var(--color-border) 20%,
    var(--color-border) 80%,
    transparent 100%
  );
  pointer-events: none;
}

/* ---------------- sections ---------------- */
.section {
  padding-block: clamp(var(--space-16), 9vw, var(--space-32));
  position: relative;
}

.section-thesis {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: var(--space-8);
  row-gap: var(--space-3);
  align-items: baseline;
  margin-bottom: clamp(var(--space-10), 6vw, var(--space-16));
  max-width: var(--content-default);
}

.section-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-gold);
  letter-spacing: 0;
  grid-row: span 2;
  padding-top: 0.3em;
  border-top: 1px solid var(--color-gold);
  width: 2.5rem;
}

.section-title {
  font-size: var(--text-2xl);
  font-weight: 400;
  letter-spacing: -0.02em;
}

.section-kicker {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  grid-column: 2;
}

/* thesis cards */
.thesis-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(var(--space-6), 3vw, var(--space-10));
}

.thesis-card {
  border-top: 1px solid var(--color-text);
  padding-top: var(--space-6);
}

.thesis-mark {
  width: 36px;
  height: 36px;
  color: var(--color-text);
  margin-bottom: var(--space-5);
}
.thesis-mark svg {
  width: 100%;
  height: 100%;
}

.thesis-card h3 {
  font-size: var(--text-lg);
  font-weight: 500;
  margin-bottom: var(--space-3);
  line-height: 1.2;
}

.thesis-card p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.6;
}

.pullquote {
  margin-top: clamp(var(--space-16), 8vw, var(--space-24));
  max-width: 880px;
  position: relative;
  padding-left: var(--space-12);
}
.pullquote .quote-mark {
  position: absolute;
  left: 0;
  top: -0.4em;
  font-family: var(--font-display);
  font-style: italic;
  font-size: 6rem;
  line-height: 1;
  color: var(--color-gold);
}
.pullquote p {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.25rem);
  line-height: 1.25;
  font-weight: 400;
  color: var(--color-text);
  max-width: none;
}

/* use cases */
.usecases {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  border-top: 1px solid var(--color-border);
}
.usecases li {
  list-style: none;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-3) var(--space-6);
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}
.usecases li:nth-child(odd) {
  padding-right: var(--space-12);
  border-right: 1px solid var(--color-border);
}
.usecases li:nth-child(even) {
  padding-left: var(--space-12);
}

.uc-num {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1rem;
  color: var(--color-gold);
  grid-row: span 2;
  padding-top: 0.4em;
}
.usecases h3 {
  font-size: var(--text-lg);
  font-weight: 500;
}
.usecases p {
  color: var(--color-text-muted);
  font-size: var(--text-base);
  line-height: 1.6;
}

/* package — section forces dark ink bg; uses literal light text */
.section-package {
  --pkg-ink: #0b1622;
  --pkg-text: #f4ece0;
  --pkg-text-muted: rgba(244, 236, 224, 0.72);
  --pkg-text-faint: rgba(244, 236, 224, 0.5);
  --pkg-border: rgba(244, 236, 224, 0.14);
  background: var(--pkg-ink);
  color: var(--pkg-text);
}
.section-package .section-title,
.section-package h3 {
  color: var(--pkg-text);
}
.section-package .section-num {
  color: var(--color-gold);
  border-top-color: var(--color-gold);
}
.section-package .section-kicker {
  color: var(--pkg-text-muted);
}

.package-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-6);
}

.pkg-card {
  background: rgba(244, 236, 224, 0.04);
  border: 1px solid var(--pkg-border);
  border-radius: var(--radius-lg);
  padding: clamp(var(--space-6), 3vw, var(--space-8));
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  color: var(--pkg-text);
  transition:
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive);
}
.pkg-card:hover {
  background: rgba(244, 236, 224, 0.07);
  border-color: color-mix(in oklab, #b08a3e 60%, transparent);
  transform: translateY(-2px);
}

.pkg-primary {
  background: rgba(176, 138, 62, 0.14);
  border-color: rgba(176, 138, 62, 0.4);
}

.pkg-tld-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.pkg-tld {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-gold);
}
.pkg-tag {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: rgba(244, 236, 224, 0.6);
  padding: var(--space-1) var(--space-3);
  border: 1px solid rgba(244, 236, 224, 0.2);
  border-radius: 999px;
}

.pkg-name {
  font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem);
  font-weight: 400;
  letter-spacing: -0.015em;
  line-height: 1.05;
  color: var(--pkg-text);
}
.pkg-name span {
  color: var(--color-gold);
  font-style: italic;
}

.pkg-card > p {
  color: rgba(244, 236, 224, 0.78);
  font-size: var(--text-base);
  line-height: 1.55;
}

.pkg-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid rgba(244, 236, 224, 0.14);
}
.pkg-list li {
  font-size: var(--text-sm);
  color: rgba(244, 236, 224, 0.72);
  padding-left: var(--space-5);
  position: relative;
}
.pkg-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.7em;
  width: 10px;
  height: 1px;
  background: var(--color-gold);
}

.pkg-link {
  align-self: flex-start;
  color: var(--pkg-text);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding-top: var(--space-1);
  border-bottom: 1px solid color-mix(in oklab, var(--color-gold) 70%, transparent);
  transition:
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    transform var(--transition-interactive);
}

.pkg-link::after {
  content: ' →';
  color: var(--color-gold);
}

.pkg-link:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
  transform: translateX(2px);
}

.package-foot {
  margin-top: clamp(var(--space-12), 6vw, var(--space-16));
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  color: rgba(244, 236, 224, 0.78);
  font-size: var(--text-base);
  font-style: italic;
  font-family: var(--font-display);
}
.package-foot p { color: rgba(244, 236, 224, 0.78); }
.package-foot p {
  max-width: none;
}

/* fit */
.fit-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.6fr);
  gap: clamp(var(--space-10), 6vw, var(--space-20));
  align-items: start;
}
.fit-head {
  position: sticky;
  top: 100px;
  margin-bottom: 0;
  display: block;
}
.fit-head .section-num {
  display: inline-block;
  margin-bottom: var(--space-4);
}
.fit-head .section-title {
  margin-top: var(--space-2);
}

.fit-body {
  display: flex;
  flex-direction: column;
  gap: var(--space-12);
}
.fit-row {
  padding-bottom: var(--space-10);
  border-bottom: 1px solid var(--color-border);
}
.fit-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.fit-row h3 {
  font-size: var(--text-xl);
  font-weight: 400;
  letter-spacing: -0.015em;
  margin-bottom: var(--space-4);
}
.fit-row p {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.65;
  max-width: 62ch;
}
.fit-row em {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-text);
  font-weight: 400;
}

/* CTA */
.section-cta {
  background: var(--color-bg);
  position: relative;
  text-align: center;
  overflow: hidden;
}
.section-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 80% at 50% 30%, color-mix(in oklab, var(--color-gold) 12%, transparent), transparent 70%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  max-width: 880px;
}
.cta-inner .section-num {
  display: inline-block;
  margin-bottom: var(--space-8);
}

.cta-title {
  font-size: var(--text-3xl);
  font-weight: 350;
  line-height: 1.02;
  letter-spacing: -0.025em;
}
.cta-title span {
  font-style: italic;
  color: var(--color-gold);
  font-family: var(--font-display);
}

.cta-lede {
  margin: var(--space-8) auto 0;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 56ch;
}

.cta-row {
  margin-top: var(--space-10);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.cta-fine {
  margin: var(--space-8) auto 0;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.04em;
  max-width: 56ch;
  text-transform: uppercase;
}

.cta-facts {
  margin: clamp(var(--space-16), 8vw, var(--space-20)) auto 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}
.cta-facts dt {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-text-faint);
  margin-bottom: var(--space-2);
}
.cta-facts dd {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.3;
}
.cta-facts dd span {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: none;
  letter-spacing: 0;
}

/* footer */
.site-footer {
  background: #0b1622;
  color: #f4ece0;
  padding-block: var(--space-16);
  border-top: 1px solid #0b1622;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  align-items: center;
  text-align: center;
}
.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: 1.125rem;
  color: #f4ece0;
}
.footer-brand .brand-mark {
  color: var(--color-gold);
}
.footer-note {
  font-size: var(--text-sm);
  color: rgba(244, 236, 224, 0.6);
  max-width: 60ch;
}
.footer-meta {
  font-size: var(--text-xs);
  color: rgba(244, 236, 224, 0.4);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  justify-content: center;
}

/* ---------------- responsive ---------------- */
@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--space-12);
  }
  .hero-card {
    order: 2;
    max-width: 520px;
  }
  .thesis-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .usecases {
    grid-template-columns: 1fr;
  }
  .usecases li:nth-child(odd) {
    padding-right: 0;
    border-right: none;
  }
  .usecases li:nth-child(even) {
    padding-left: 0;
  }
  .package-grid {
    grid-template-columns: 1fr;
  }
  .fit-grid {
    grid-template-columns: 1fr;
  }
  .fit-head {
    position: static;
  }
  .cta-facts {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 720px) {
  .site-nav {
    position: fixed;
    inset: 64px 0 auto 0;
    background: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--space-8) var(--space-6);
    gap: var(--space-5);
    border-bottom: 1px solid var(--color-border);
    transform: translateY(-110%);
    transition: transform var(--transition-interactive);
    z-index: 49;
  }
  .site-nav.is-open {
    transform: translateY(0);
  }
  .site-nav a {
    font-size: var(--text-lg);
    font-family: var(--font-display);
    color: var(--color-text);
  }
  .nav-toggle {
    display: flex;
  }
  .hero-meta {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .pullquote {
    padding-left: 0;
    padding-top: var(--space-12);
  }
  .pullquote .quote-mark {
    top: 0;
    left: 0;
    font-size: 4rem;
  }
  .cta-row {
    flex-direction: column;
    align-items: stretch;
  }
  .cta-row .btn {
    width: 100%;
  }
}

/* subtle entrance animation */
@media (prefers-reduced-motion: no-preference) {
  .hero-copy > *,
  .hero-card,
  .section-head > *,
  .thesis-card,
  .usecases li,
  .pkg-card,
  .fit-row,
  .cta-inner > * {
    animation: rise 700ms cubic-bezier(0.2, 0.7, 0.2, 1) both;
  }
  .hero-copy > *:nth-child(1) { animation-delay: 0ms; }
  .hero-copy > *:nth-child(2) { animation-delay: 80ms; }
  .hero-copy > *:nth-child(3) { animation-delay: 160ms; }
  .hero-copy > *:nth-child(4) { animation-delay: 220ms; }
  .hero-copy > *:nth-child(5) { animation-delay: 280ms; }
  .hero-card { animation-delay: 300ms; }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}