/* ============================================================
   AquaFlow — Blue-theme design system
   ============================================================ */

/* ── Design Tokens ─────────────────────────────────────────── */
: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,      5rem);
  --text-hero: clamp(3rem,     0.5rem + 7vw,    8rem);

  /* 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;

  /* Layout */
  --content-narrow:  680px;
  --content-default: 1000px;
  --content-wide:    1240px;

  /* Radii */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Fonts */
  --font-display: 'Cabinet Grotesk', 'Helvetica Neue', sans-serif;
  --font-body:    'Satoshi', 'Inter', sans-serif;
}

/* ── Dark Theme (default) ───────────────────────────────────── */
:root,
[data-theme="dark"] {
  --color-bg:              #050810;
  --color-surface:         #080d1a;
  --color-surface-2:       #0c1220;
  --color-surface-offset:  #0f1628;
  --color-border:          #1a2540;
  --color-divider:         #152038;

  --color-text:            #dde4f0;
  --color-text-muted:      #6b7a99;
  --color-text-faint:      #3a4560;
  --color-text-inverse:    #050810;

  /* Blue accent system */
  --color-primary:         #2d8eff;
  --color-primary-hover:   #5aa8ff;
  --color-primary-active:  #0066dd;
  --color-primary-glow:    rgba(45, 142, 255, 0.25);
  --color-primary-subtle:  rgba(45, 142, 255, 0.08);

  /* Bright accent (electric blue) */
  --color-accent:          #38beff;
  --color-accent-glow:     rgba(56, 190, 255, 0.3);

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.6);
  --shadow-blue: 0 0 40px rgba(45, 142, 255, 0.15);
}

/* ── Light Theme ─────────────────────────────────────────────── */
[data-theme="light"] {
  --color-bg:              #f4f6fc;
  --color-surface:         #ffffff;
  --color-surface-2:       #f8faff;
  --color-surface-offset:  #eef2fa;
  --color-border:          #d0d8ec;
  --color-divider:         #dae0f0;

  --color-text:            #0f1628;
  --color-text-muted:      #4a5680;
  --color-text-faint:      #8a97b8;
  --color-text-inverse:    #f4f6fc;

  --color-primary:         #0066dd;
  --color-primary-hover:   #0055bb;
  --color-primary-active:  #0044a0;
  --color-primary-glow:    rgba(0, 102, 221, 0.18);
  --color-primary-subtle:  rgba(0, 102, 221, 0.06);

  --color-accent:          #0088ff;
  --color-accent-glow:     rgba(0, 136, 255, 0.2);

  --shadow-sm: 0 1px 3px rgba(0,40,120,0.08);
  --shadow-md: 0 4px 16px rgba(0,40,120,0.1);
  --shadow-lg: 0 12px 40px rgba(0,40,120,0.14);
  --shadow-blue: 0 0 40px rgba(0, 102, 221, 0.1);
}

/* System preference fallback */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg: #050810;
    --color-surface: #080d1a;
    --color-text: #dde4f0;
    --color-primary: #2d8eff;
  }
}

/* ── Base Reset ─────────────────────────────────────────────── */
*, *::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: var(--space-16);
}
body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}
img, picture, video, canvas, svg { display: block; max-width: 100%; }
ul[role="list"], ol[role="list"] { list-style: none; }
input, button, textarea, select { font: inherit; color: inherit; }
h1, h2, h3, h4, h5, h6 { text-wrap: balance; line-height: 1.15; }
p, li, figcaption { text-wrap: pretty; max-width: 72ch; }
button { cursor: pointer; background: none; border: none; }
a { color: inherit; text-decoration: none; }
a, button, [role="button"] {
  transition: color var(--transition-interactive),
              background var(--transition-interactive),
              border-color var(--transition-interactive),
              box-shadow var(--transition-interactive),
              opacity var(--transition-interactive);
}
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}
::selection {
  background: var(--color-primary-subtle);
  color: var(--color-text);
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border-width: 0;
}
.desktop-br { display: none; }
@media (min-width: 768px) { .desktop-br { display: block; } }

/* ── Scroll Reveal ──────────────────────────────────────────── */
/* Default: always visible (safe fallback for screenshots, print, reduced motion) */
.fade-in { opacity: 1; }

/* Progressive enhancement: JS adds .js-reveal-pending before page ready,
   then triggers .js-reveal-visible on intersection */
.js-reveal-pending {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.js-reveal-visible {
  opacity: 1 !important;
  transform: none !important;
}

/* ── Section Label ──────────────────────────────────────────── */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 0.65em 1.4em;
  border-radius: var(--radius-md);
  cursor: pointer;
  white-space: nowrap;
  transition:
    background var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    color var(--transition-interactive),
    transform var(--transition-interactive);
}
.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 0 24px var(--color-primary-glow);
  transform: translateY(-1px);
}
.btn--primary:active { transform: translateY(0); }

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn--outline:hover {
  background: var(--color-primary-subtle);
  box-shadow: 0 0 20px var(--color-primary-glow);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  color: var(--color-text);
  border-color: var(--color-primary);
}

.btn--lg {
  font-size: var(--text-base);
  padding: 0.75em 1.75em;
}

.btn__arrow {
  transition: transform var(--transition-interactive);
}
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ============================================================
   NAVIGATION
   ============================================================ */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 var(--space-6);
  background: transparent;
  transition:
    background 0.4s var(--ease-out),
    box-shadow 0.4s var(--ease-out),
    backdrop-filter 0.4s var(--ease-out);
}
.nav.scrolled {
  background: rgba(5, 8, 16, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 1px 0 var(--color-border);
}
[data-theme="light"] .nav.scrolled {
  background: rgba(244, 246, 252, 0.9);
}
.nav__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  gap: var(--space-8);
}
.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}
.nav__brand {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-text);
}
.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  margin-left: auto;
}
.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.nav__link:hover { color: var(--color-primary); }
.nav__actions { margin-left: var(--space-6); flex-shrink: 0; }

/* Mobile toggle */
.nav__mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  margin-left: auto;
  padding: var(--space-2);
}
.nav__mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: background var(--transition-interactive);
}
.nav__mobile-toggle:hover span { background: var(--color-primary); }

/* Mobile menu */
.nav__mobile {
  display: none;
  flex-direction: column;
  padding: var(--space-4) var(--space-6) var(--space-8);
  border-top: 1px solid var(--color-border);
  gap: var(--space-4);
  background: rgba(5, 8, 16, 0.95);
  backdrop-filter: blur(16px);
}
.nav__mobile-link {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
}
.nav__mobile-link:hover { color: var(--color-primary); }
.nav__mobile-cta {
  color: var(--color-primary);
  margin-top: var(--space-2);
}
.nav__mobile.open { display: flex; }

@media (max-width: 900px) {
  .nav__links, .nav__actions { display: none; }
  .nav__mobile-toggle { display: flex; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}
/* Dark blue radial glow on left */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 80% at 10% 60%,
    rgba(10, 30, 80, 0.7) 0%,
    transparent 70%);
  z-index: 1;
  pointer-events: none;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: var(--content-wide);
  margin: 0 auto;
  padding: var(--space-32) var(--space-6) var(--space-24);
  width: 100%;
}
.hero__label {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.hero__label::before {
  content: '';
  display: block;
  width: 28px;
  height: 1px;
  background: var(--color-primary);
}
.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: 900;
  line-height: 1.05;
  color: #fff;
  max-width: 680px;
  margin-bottom: var(--space-6);
  letter-spacing: -0.02em;
}
.hero__accent {
  color: var(--color-accent);
}
.hero__sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 52ch;
  margin-bottom: var(--space-10);
  line-height: 1.7;
}
.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.hero__scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-primary), transparent);
  animation: scroll-line 2s ease-in-out infinite;
}
@keyframes scroll-line {
  0%, 100% { opacity: 0.2; transform: scaleY(0.6); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================================
   TICKER
   ============================================================ */
.ticker {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-4) 0;
  overflow: hidden;
}
.ticker__track {
  display: flex;
  gap: 0;
  animation: ticker-scroll 40s linear infinite;
  white-space: nowrap;
  width: max-content;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
@keyframes ticker-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.ticker__item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0 var(--space-8);
  border-right: 1px solid var(--color-border);
  flex-shrink: 0;
}
.ticker__item a {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-interactive);
}
.ticker__item a:hover { color: var(--color-primary); }
.ticker__arrow { margin-left: var(--space-2); color: var(--color-primary); }
.ticker__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  flex-shrink: 0;
  box-shadow: 0 0 8px var(--color-primary-glow);
}

/* ============================================================
   STATS
   ============================================================ */
.stats {
  padding: clamp(var(--space-12), 6vw, var(--space-20)) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.stats__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-8);
}
.stats__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  flex: 1;
  min-width: 140px;
}
.stats__value {
  display: flex;
  align-items: baseline;
  gap: 0;
  line-height: 1;
}
.stats__num {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
  letter-spacing: -0.02em;
}
.stats__unit {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 900;
  color: var(--color-accent);
  line-height: 1;
}
.stats__label {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}
.stats__divider {
  width: 1px;
  height: 48px;
  background: var(--color-border);
  flex-shrink: 0;
}
@media (max-width: 900px) {
  .stats__inner { justify-content: center; }
  .stats__divider { display: none; }
  .stats__item { min-width: 45%; }
}

/* ============================================================
   TOKEN MARQUEE
   ============================================================ */
.token-marquee {
  overflow: hidden;
  padding: var(--space-5) 0;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
}
.token-marquee__track {
  display: flex;
  align-items: center;
  gap: 0;
  animation: token-scroll 30s linear infinite;
  width: max-content;
}
@keyframes token-scroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
.token {
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  padding: 0 var(--space-6);
  transition: color var(--transition-interactive);
}
.token:hover { color: var(--color-primary); }
.token-sep {
  color: var(--color-border);
  font-size: var(--text-base);
}

/* ============================================================
   SERVICES
   ============================================================ */
.services {
  padding: clamp(var(--space-16), 8vw, var(--space-32)) var(--space-6);
}
.services__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.services__header {
  margin-bottom: clamp(var(--space-12), 5vw, var(--space-20));
}
.services__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--color-text);
  max-width: 16ch;
  line-height: 1.1;
}

/* Service Card */
.service-card {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr 1fr;
  gap: var(--space-8);
  align-items: center;
  padding: clamp(var(--space-8), 4vw, var(--space-12)) 0;
  border-bottom: 1px solid var(--color-border);
}
.service-card:last-child { border-bottom: none; }
.service-card--reverse .service-card__body { order: 2; }
.service-card--reverse .service-card__visual { order: 1; }

.service-card__index {
  font-family: var(--font-display);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-faint);
  width: 48px;
  flex-shrink: 0;
  align-self: flex-start;
  padding-top: var(--space-2);
}
.service-card__tag {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}
.service-card__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: var(--space-4);
  letter-spacing: -0.01em;
}
.service-card__desc {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 55ch;
  margin-bottom: var(--space-6);
}
.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.04em;
}
.service-card__link:hover {
  color: var(--color-primary-hover);
}
.service-card__link span {
  transition: transform var(--transition-interactive);
}
.service-card__link:hover span { transform: translateX(4px); }

.service-card__visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 180px;
}
.service-card__glow {
  position: absolute;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--color-primary-glow) 0%, transparent 70%);
  pointer-events: none;
}
.service-card__icon {
  position: relative;
  z-index: 1;
  color: var(--color-primary);
  opacity: 0.85;
}
.service-card__icon:hover { opacity: 1; }

@media (max-width: 768px) {
  .service-card {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: var(--space-5);
  }
  .service-card__index { display: none; }
  .service-card--reverse .service-card__body { order: unset; }
  .service-card--reverse .service-card__visual { order: unset; }
  .service-card__visual { height: 120px; justify-content: flex-start; }
  .service-card__glow { width: 150px; height: 150px; }
}

/* ============================================================
   INSIGHTS
   ============================================================ */
.insights {
  padding: clamp(var(--space-16), 8vw, var(--space-24)) var(--space-6);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.insights__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
}
.insights__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: clamp(var(--space-10), 4vw, var(--space-16));
}
.insights__title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--color-text);
}
.insights__all {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-primary);
  white-space: nowrap;
}
.insights__all:hover { color: var(--color-primary-hover); }
.insights__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}
@media (max-width: 900px) {
  .insights__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .insights__grid { grid-template-columns: 1fr; }
}

.insight-card {
  padding: var(--space-6);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.insight-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 0 30px var(--color-primary-glow);
  transform: translateY(-2px);
}
.insight-card__tag {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.insight-card__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
}
.insight-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  flex: 1;
}
.insight-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}
.insight-card__link {
  color: var(--color-primary);
  font-weight: 600;
  font-size: var(--text-xs);
  transition: color var(--transition-interactive);
}
.insight-card__link:hover { color: var(--color-primary-hover); }

/* ============================================================
   CTA BANNER
   ============================================================ */
.cta-banner {
  position: relative;
  overflow: hidden;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) var(--space-6);
}
.cta-banner__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 80% at 50% 50%,
      rgba(45, 142, 255, 0.12) 0%,
      transparent 65%),
    radial-gradient(ellipse 50% 50% at 20% 80%,
      rgba(56, 190, 255, 0.08) 0%,
      transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.cta-banner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}
.cta-banner__inner {
  position: relative;
  z-index: 1;
  max-width: var(--content-narrow);
  margin: 0 auto;
  text-align: center;
}
.cta-banner .section-label { display: block; text-align: center; margin-bottom: var(--space-5); }
.cta-banner__title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: 900;
  color: var(--color-text);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-6);
  line-height: 1.1;
}
.cta-banner__sub {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  max-width: 50ch;
  margin: 0 auto var(--space-10);
  line-height: 1.7;
}
.cta-banner__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: clamp(var(--space-16), 6vw, var(--space-24)) var(--space-6) var(--space-8);
}
.footer__inner {
  max-width: var(--content-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-16);
  padding-bottom: var(--space-16);
  border-bottom: 1px solid var(--color-border);
}
.footer__logo { margin-bottom: var(--space-4); }
.footer__tagline {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  max-width: 28ch;
  line-height: 1.6;
}
.footer__nav {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-8);
}
.footer__col {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.footer__col-title {
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
}
.footer__col a {
  font-size: var(--text-sm);
  color: var(--color-text-faint);
  transition: color var(--transition-interactive);
}
.footer__col a:hover { color: var(--color-primary); }

.footer__bottom {
  max-width: var(--content-wide);
  margin: var(--space-8) auto 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
}
.footer__copy, .footer__disclaimer {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
}

@media (max-width: 900px) {
  .footer__inner { grid-template-columns: 1fr; gap: var(--space-10); }
  .footer__nav { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .footer__nav { grid-template-columns: 1fr 1fr; }
  .footer__bottom { flex-direction: column; }
}

/* ── Language Switch ─────────────────────────────────────────── */
.lang-switch {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.3em 0.65em;
  transition:
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    background var(--transition-interactive);
}
.lang-switch:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-subtle);
}