/* Skyseed Tech — Master Design System (skyseedllc.com)
   Clean, modern, credible software studio aesthetic.
   100% native CSS, system fonts, zero external CDN dependencies, light & dark mode. */

:root {
  /* Palette - Light Mode */
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-alt: #f1f5f9;
  --surface-hover: #ffffff;
  --line: #e2e8f0;
  --line-strong: #cbd5e1;
  --line-glow: rgba(37, 99, 235, 0.15);

  --ink: #0f172a;        /* 13.9:1 on #f8fafc - WCAG AAA */
  --ink-2: #334155;      /* 9.3:1 on #f8fafc - WCAG AAA */
  --muted: #64748b;      /* 4.8:1 on #f8fafc - WCAG AA */
  
  --brand: #2563eb;
  --brand-hover: #1d4ed8;
  --brand-ink: #ffffff;
  --brand-soft: #eff6ff;
  --brand-border: #bfdbfe;
  --accent: #0284c7;

  /* Hero Specific (Prestige Dark Slate) */
  --hero-bg-1: #070c18;
  --hero-bg-2: #0b1428;
  --hero-ink: #f8fafc;
  --hero-ink-2: #cbd5e1;
  --hero-muted: #94a3b8;
  --hero-line: rgba(255, 255, 255, 0.1);

  /* Geometry & Fonts */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --wrap: 1140px;
  --wrap-narrow: 740px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 16px -2px rgba(15, 23, 42, 0.06), 0 2px 6px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.08), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #070b14;
    --surface: #0e1526;
    --surface-alt: #0a0f1d;
    --surface-hover: #131d33;
    --line: #1c273d;
    --line-strong: #2c3c5d;
    --line-glow: rgba(96, 165, 250, 0.2);

    --ink: #f8fafc;        /* 15.2:1 on #070b14 - WCAG AAA */
    --ink-2: #cbd5e1;      /* 10.6:1 on #070b14 - WCAG AAA */
    --muted: #94a3b8;      /* 5.5:1 on #070b14 - WCAG AA */

    --brand: #3b82f6;
    --brand-hover: #60a5fa;
    --brand-ink: #ffffff;
    --brand-soft: #0e1b38;
    --brand-border: #1e3a8a;
    --accent: #38bdf8;

    --hero-bg-1: #050811;
    --hero-bg-2: #080e1c;
    --hero-ink: #f8fafc;
    --hero-ink-2: #cbd5e1;
    --hero-muted: #94a3b8;
    --hero-line: rgba(255, 255, 255, 0.08);

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 20px -2px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 12px 36px -4px rgba(0, 0, 0, 0.6);
  }
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  margin: 0;
  background-color: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--brand);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: var(--brand-hover);
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.narrow {
  max-width: var(--wrap-narrow);
}

.skip {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.skip:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  padding: 10px 16px;
  background: var(--surface);
  color: var(--brand);
  border: 2px solid var(--brand);
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */
.top {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.top__in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.015em;
  flex-shrink: 0;
}

.brand__logo {
  width: 28px;
  height: 28px;
  border-radius: 7px;
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.brand:hover .brand__logo {
  transform: scale(1.06);
}

.brand__accent {
  color: var(--brand);
  font-weight: 700;
}

.tagline {
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 400;
  margin-left: 8px;
  padding-left: 14px;
  border-left: 1px solid var(--line);
  white-space: nowrap;
}

.nav-desktop {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-desktop a {
  color: var(--ink-2);
  font-size: 0.9375rem;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav-desktop a:hover {
  color: var(--ink);
  background-color: var(--surface-alt);
}

.nav-desktop .nav-cta {
  margin-left: 8px;
  background-color: var(--brand);
  color: var(--brand-ink);
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 2px rgba(37, 99, 235, 0.2);
}

.nav-desktop .nav-cta:hover {
  background-color: var(--brand-hover);
  color: var(--brand-ink);
  transform: translateY(-1px);
}

/* Mobile Menu via native details/summary */
.nav-mobile-menu {
  display: none;
  position: relative;
}

.nav-mobile-menu summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  cursor: pointer;
  user-select: none;
}

.nav-mobile-menu summary::-webkit-details-marker {
  display: none;
}

.nav-mobile-menu summary:hover {
  background: var(--surface-alt);
}

.menu-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 18px;
  height: 14px;
}

.menu-icon .bar {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--ink);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-mobile-menu[open] .menu-icon .bar-1 {
  transform: translateY(3.5px) rotate(45deg);
}

.nav-mobile-menu[open] .menu-icon .bar-2 {
  transform: translateY(-3.5px) rotate(-45deg);
}

.nav-mobile-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 220px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  z-index: 1000;
}

.nav-mobile-dropdown a {
  padding: 10px 14px;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink);
  border-radius: var(--radius-sm);
  transition: background-color 0.15s ease;
}

.nav-mobile-dropdown a:hover {
  background: var(--surface-alt);
}

.nav-mobile-dropdown .mobile-cta {
  background: var(--brand);
  color: var(--brand-ink);
  font-weight: 600;
  text-align: center;
  margin-top: 4px;
}

.nav-mobile-dropdown .mobile-cta:hover {
  background: var(--brand-hover);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  background: 
    radial-gradient(1000px 500px at 75% 0%, rgba(37, 99, 235, 0.25), transparent 70%),
    radial-gradient(600px 400px at 15% 90%, rgba(2, 132, 199, 0.15), transparent 60%),
    linear-gradient(165deg, var(--hero-bg-1) 0%, var(--hero-bg-2) 100%);
  color: var(--hero-ink);
  padding: 96px 0 84px;
  overflow: hidden;
  border-bottom: 1px solid var(--hero-line);
}

.hero__bg-grid {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
  opacity: 0.8;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.2) 100%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 1) 0%, rgba(0, 0, 0, 0.2) 100%);
}

.hero__in {
  position: relative;
  z-index: 2;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(96, 165, 250, 0.3);
  padding: 5px 14px;
  border-radius: 9999px;
  margin-bottom: 22px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #38bdf8;
  box-shadow: 0 0 8px #38bdf8;
}

.badge-text {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #93c5fd;
}

.hero__title {
  margin: 0;
  font-size: clamp(2.35rem, 5.5vw, 3.85rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
  max-width: 15ch;
  color: #ffffff;
}

.hero__text {
  margin: 24px 0 0;
  max-width: 58ch;
  color: var(--hero-ink-2);
  font-size: clamp(1.0625rem, 2vw, 1.25rem);
  line-height: 1.6;
}

.hero__cta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.18s cubic-bezier(0.2, 0.8, 0.2, 1);
  text-decoration: none;
  border: 1px solid transparent;
}

.btn--primary {
  background-color: var(--brand);
  color: #ffffff;
  border-color: var(--brand);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.25);
}

.btn--primary:hover {
  background-color: var(--brand-hover);
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(37, 99, 235, 0.35);
}

.hero .btn--primary {
  background: #ffffff;
  color: #0b1428;
  border-color: #ffffff;
}

.hero .btn--primary:hover {
  background: #f1f5f9;
  color: #0b1428;
  box-shadow: 0 6px 20px rgba(255, 255, 255, 0.25);
}

.btn--ghost {
  background-color: transparent;
  color: var(--hero-ink);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn--ghost:hover {
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.btn__icon {
  transition: transform 0.18s ease;
}

.btn:hover .btn__icon {
  transform: translateX(3px);
}

/* Facts Strip */
.hero__facts {
  margin-top: 68px;
  padding-top: 32px;
  border-top: 1px solid var(--hero-line);
}

.facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.fact {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.fact__val {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  color: #ffffff;
}

.fact__lbl {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--hero-muted);
}

/* ==========================================================================
   Content Sections (Bands)
   ========================================================================== */
.band {
  padding: 88px 0;
}

.band--alt {
  background-color: var(--surface-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.section-head {
  max-width: 680px;
  margin-bottom: 44px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand);
  margin-bottom: 10px;
}

.section-title {
  margin: 0;
  font-size: clamp(1.85rem, 3.8vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
}

.intro {
  margin: 14px 0 0;
  color: var(--ink-2);
  font-size: 1.125rem;
  line-height: 1.6;
}

/* Cards Grid */
.cards {
  display: grid;
  gap: 24px;
}

.cards--products {
  grid-template-columns: repeat(3, 1fr);
}

.card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: all 0.22s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.card--product:hover {
  transform: translateY(-3px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-lg);
}

.card__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.card__icon-box {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background-color: var(--brand-soft);
  color: var(--brand);
  border: 1px solid var(--brand-border);
}

.card__num {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--muted);
}

.card__title {
  margin: 0 0 12px;
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.card__text {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.96875rem;
  line-height: 1.62;
}

/* Principles Cards (2x3 or 3x2 Grid) */
.cards--principles {
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card--principle {
  padding: 26px 24px;
  border-radius: var(--radius-md);
  background-color: var(--surface);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
}

.principle__header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 10px;
}

.principle__num {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  border: 1px solid var(--brand-border);
  padding: 2px 7px;
  border-radius: 5px;
  flex-shrink: 0;
}

.principle__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  color: var(--ink);
}

.principle__text {
  margin: 0;
  color: var(--ink-2);
  font-size: 0.9375rem;
  line-height: 1.6;
}

/* ==========================================================================
   Call To Action (CTA) Band
   ========================================================================== */
.band--cta {
  padding: 64px 0 88px;
}

.cta__card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  background: linear-gradient(135deg, var(--brand-soft) 0%, var(--surface) 100%);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
}

.cta__title {
  margin: 0;
  font-size: clamp(1.6rem, 3.2vw, 2.15rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.cta__text {
  margin: 10px 0 0;
  color: var(--ink-2);
  font-size: 1.0625rem;
  line-height: 1.55;
  max-width: 52ch;
}

.cta__action {
  flex-shrink: 0;
}

.btn--cta {
  padding: 0 28px;
  min-height: 52px;
  font-size: 1rem;
}

/* ==========================================================================
   Inner Document Pages (About, Contact, Privacy, Terms)
   ========================================================================== */
.doc-header {
  padding: 64px 0 48px;
  background-color: var(--surface-alt);
  border-bottom: 1px solid var(--line);
}

.doc-header__in {
  max-width: 880px;
}

.doc-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 16px;
}

.doc-breadcrumb a {
  color: var(--muted);
}

.doc-breadcrumb a:hover {
  color: var(--brand);
}

.doc-breadcrumb .sep {
  color: var(--line-strong);
}

.doc-breadcrumb .current {
  color: var(--ink);
  font-weight: 500;
}

.doc-title {
  margin: 0;
  font-size: clamp(2.2rem, 4.5vw, 3.1rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--ink);
}

.doc-lede {
  margin: 18px 0 0;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--ink-2);
}

.doc-meta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 0.875rem;
  color: var(--muted);
}

.meta-icon {
  color: var(--muted);
}

.doc-section {
  padding: 64px 0 108px;
}

.doc-layout {
  display: grid;
  grid-template-columns: 300px minmax(0, 1fr);
  gap: 56px;
  align-items: start;
}

/* Sidebar Card */
.doc-sidebar {
  position: sticky;
  top: 88px;
}

.sidebar-card {
  background-color: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar-card__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sidebar-logo {
  border-radius: 8px;
}

.sidebar-org {
  display: block;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.sidebar-sub {
  display: block;
  font-size: 0.8125rem;
  color: var(--muted);
}

.sidebar-facts {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sidebar-fact {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-fact__label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.sidebar-fact__val {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.sidebar-nav__title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 4px;
}

.sidebar-nav__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--ink-2);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.sidebar-nav__link:hover {
  background-color: var(--surface-alt);
  color: var(--brand);
}

.sidebar-nav__link.active {
  background-color: var(--brand-soft);
  color: var(--brand);
  font-weight: 600;
}

.sidebar-contact {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.sidebar-contact__lbl {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.sidebar-contact__email {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand);
  word-break: break-all;
}

/* Main Document Content */
.doc-main {
  min-width: 0;
  max-width: 780px;
}

.doc__body {
  font-size: 1.0625rem;
  line-height: 1.78;
  color: var(--ink-2);
}

.doc__body h2 {
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin: 48px 0 16px;
  color: var(--ink);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.doc__body h3 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.015em;
  margin: 36px 0 14px;
  color: var(--ink);
}

.doc__body p {
  margin: 0 0 22px;
}

.doc__body strong {
  font-weight: 600;
  color: var(--ink);
}

.doc__body ul, .doc__body ol {
  margin: 0 0 26px;
  padding-left: 24px;
}

.doc__body li {
  margin-bottom: 10px;
  line-height: 1.7;
}

.doc__body a {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1.5px;
}

.doc__body a:hover {
  color: var(--brand-hover);
}

.doc__body hr {
  margin: 40px 0;
  border: none;
  border-top: 1px solid var(--line);
}

/* 404 page */
.not-found-header {
  padding: 96px 0 120px;
  text-align: center;
}

.not-found-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.not-found-cta {
  margin-top: 28px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.foot {
  border-top: 1px solid var(--line);
  background-color: var(--surface);
  padding: 44px 0 48px;
  font-size: 0.9375rem;
  color: var(--muted);
}

.foot__in {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}

.foot__brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  color: var(--ink);
  font-size: 1rem;
}

.foot__logo {
  border-radius: 5px;
}

.foot .links {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

.foot .links a {
  color: var(--ink-2);
  text-decoration: none;
}

.foot .links a:hover {
  color: var(--brand);
  text-decoration: underline;
}

.foot .copy {
  margin: 0;
  font-size: 0.875rem;
  color: var(--muted);
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 960px) {
  .doc-layout {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  
  .doc-sidebar {
    position: static;
  }
  
  .doc-main {
    max-width: 100%;
  }

  .cards--products {
    grid-template-columns: 1fr;
  }
  
  .cards--principles {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .cta__card {
    flex-direction: column;
    align-items: flex-start;
    padding: 36px 28px;
    gap: 24px;
  }
  
  .facts {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .tagline {
    display: none;
  }
  
  .nav-desktop {
    display: none;
  }
  
  .nav-mobile-menu {
    display: block;
  }
  
  .hero {
    padding: 68px 0 56px;
  }
  
  .hero__facts {
    margin-top: 48px;
  }
  
  .facts {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  
  .fact {
    border-bottom: 1px solid var(--hero-line);
    padding-bottom: 14px;
  }
  
  .fact:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  
  .cards--principles {
    grid-template-columns: 1fr;
  }
  
  .band {
    padding: 64px 0;
  }
}

@media (max-width: 480px) {
  .wrap {
    padding-left: 18px;
    padding-right: 18px;
  }
  
  .card {
    padding: 24px 20px;
  }
  
  .hero__cta {
    flex-direction: column;
    align-items: stretch;
  }
  
  .hero__cta .btn {
    width: 100%;
  }
  
  .btn--cta {
    width: 100%;
  }
  
  .cta__action {
    width: 100%;
  }
  
  .foot .links {
    gap: 8px;
    font-size: 0.875rem;
  }
}