/* ============================================================
   SYNQ WEBSITE — Design System (Nocturne)
   ============================================================ */
@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;600;700;800&family=Space+Grotesk:wght@300;400;500;600;700&display=swap');

/* ---- Color Tokens ---- */
:root {
  --ink-950: #07090b;
  --ink-900: #0a0d10;
  --ink-850: #101418;
  --ink-800: #14181d;
  --ink-750: #191e24;
  --ink-700: #1f252c;
  --ink-600: #2a3138;
  --ink-500: #3a424b;
  --ink-400: #545d67;
  --ink-300: #79838d;
  --ink-200: #a6b0ba;
  --ink-100: #d4dae0;
  --ink-050: #f3f6f8;
  --white:   #ffffff;

  --teal-300: #7af2dd;
  --teal-400: #5eead4;
  --teal-500: #2dd4bf;
  --teal-600: #14b8a6;
  --teal-700: #0f8c80;

  --rose-400: #fb7185;
  --amber-400: #fbbf24;
  --violet-400: #a78bfa;

  --bg-app: var(--ink-900);
  --bg-sunken: var(--ink-950);
  --surface-1: var(--ink-800);
  --surface-2: var(--ink-700);
  --surface-3: var(--ink-600);
  --surface-hover: var(--ink-600);
  --surface-glass: rgba(20, 24, 29, 0.72);

  --text-primary: var(--ink-050);
  --text-secondary: var(--ink-200);
  --text-tertiary: var(--ink-300);
  --text-disabled: var(--ink-400);
  --text-on-accent: #042b25;

  --accent: var(--teal-400);
  --accent-hover: var(--teal-300);
  --accent-pressed: var(--teal-500);
  --accent-deep: var(--teal-600);
  --accent-soft: rgba(94, 234, 212, 0.14);
  --accent-soft-strong: rgba(94, 234, 212, 0.24);

  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-default: rgba(255, 255, 255, 0.10);
  --border-strong: rgba(255, 255, 255, 0.16);
  --border-accent: rgba(94, 234, 212, 0.55);

  --danger: var(--rose-400);
  --warning: var(--amber-400);
  --success: var(--teal-400);
  --scrim: rgba(5, 7, 9, 0.66);

  /* Shadows & glow */
  --shadow-xs: 0 1px 2px rgba(0,0,0,.4);
  --shadow-sm: 0 2px 8px rgba(0,0,0,.35);
  --shadow-md: 0 8px 24px rgba(0,0,0,.45);
  --shadow-lg: 0 18px 48px rgba(0,0,0,.55);
  --shadow-xl: 0 30px 80px rgba(0,0,0,.62);
  --glow-sm: 0 0 16px rgba(94,234,212,.30);
  --glow-md: 0 0 28px rgba(94,234,212,.38);
  --glow-lg: 0 0 48px rgba(94,234,212,.45);
  --ring-top: inset 0 1px 0 rgba(255,255,255,.05);
  --blur-nav: blur(12px) saturate(130%);

  /* Motion */
  --ease-out: cubic-bezier(0.22,1,0.36,1);
  --ease-spring: cubic-bezier(0.34,1.56,0.64,1);
  --dur-fast: 120ms;
  --dur-base: 200ms;
  --dur-slow: 360ms;

  /* Spacing (4px base) */
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 32px; --space-8: 40px;
  --space-9: 48px; --space-10: 64px; --space-11: 80px; --space-12: 96px;
  --gutter: 20px;

  /* Radii */
  --radius-xs: 6px; --radius-sm: 10px; --radius-md: 14px; --radius-lg: 18px;
  --radius-xl: 24px; --radius-2xl: 32px; --radius-pill: 999px;
  --radius-card: var(--radius-lg);

  /* Typography */
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Space Grotesk", system-ui, sans-serif;
  --text-display: 40px; --text-h1: 30px; --text-h2: 24px; --text-h3: 20px;
  --text-title: 17px; --text-body: 15px; --text-label: 14px;
  --text-caption: 13px; --text-micro: 11px;
  --leading-tight: 1.05; --leading-snug: 1.2; --leading-normal: 1.45; --leading-relaxed: 1.6;
  --tracking-tight: -0.02em; --tracking-snug: -0.01em; --tracking-wide: 0.04em;
  --tracking-overline: 0.16em;
  --weight-regular: 400; --weight-medium: 500; --weight-semibold: 600;
  --weight-bold: 700; --weight-extrabold: 800;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  background: var(--bg-app);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-body);
  line-height: var(--leading-normal);
  min-height: 100dvh;
}
img, svg { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--accent-hover); }
ul, ol { list-style: none; }

/* ============================================================
   LAYOUT
   ============================================================ */
.site-wrapper {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
}

/* ---- Header / Nav ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-glass);
  backdrop-filter: var(--blur-nav);
  -webkit-backdrop-filter: var(--blur-nav);
  border-bottom: 1px solid var(--border-subtle);
}
.nav-inner {
  max-width: 900px;
  margin: 0 auto;
  padding: var(--space-4) var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
}
.nav-logo svg { width: 36px; height: 36px; flex-shrink: 0; }
.nav-logo-text {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-bold);
  color: var(--text-primary);
  letter-spacing: var(--tracking-tight);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.nav-link {
  font-size: var(--text-label);
  font-weight: var(--weight-medium);
  color: var(--text-secondary);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  transition: color var(--dur-base) var(--ease-out), background var(--dur-base) var(--ease-out);
}
.nav-link:hover {
  color: var(--text-primary);
  background: var(--surface-3);
}
.nav-link.active {
  color: var(--accent);
  background: var(--accent-soft);
}

/* ---- Main content ---- */
.page-main {
  flex: 1;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: var(--space-11) var(--gutter) var(--space-12);
}

/* ---- Hero ---- */
.page-hero {
  margin-bottom: var(--space-11);
  text-align: center;
}
.page-hero .eyebrow {
  display: inline-block;
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-4);
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(28px, 5vw, var(--text-display));
  font-weight: var(--weight-extrabold);
  letter-spacing: var(--tracking-tight);
  line-height: var(--leading-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
}
.page-hero .subtitle {
  font-size: var(--text-body);
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: var(--leading-relaxed);
}

/* ---- Divider ---- */
.divider {
  border: none;
  border-top: 1px solid var(--border-subtle);
  margin: var(--space-9) 0;
}

/* ---- Card ---- */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-md), var(--ring-top);
  padding: var(--space-7) var(--space-8);
  margin-bottom: var(--space-6);
}

/* ---- Section heading ---- */
.section-title {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-5);
  letter-spacing: var(--tracking-snug);
}
.section-title .icon-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  flex-shrink: 0;
}
.section-title .icon-badge svg {
  width: 18px;
  height: 18px;
}

/* ---- Body text ---- */
.prose p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-5);
}
.prose p:last-child { margin-bottom: 0; }
.prose strong { color: var(--text-primary); font-weight: var(--weight-semibold); }
.prose a { color: var(--accent); }
.prose a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ---- FAQ accordion ---- */
.faq-list { display: flex; flex-direction: column; gap: var(--space-3); }
.faq-item {
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color var(--dur-base) var(--ease-out);
}
.faq-item:hover { border-color: var(--border-default); }
.faq-question {
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  text-align: left;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: var(--text-body);
  font-weight: var(--weight-medium);
  transition: background var(--dur-fast) var(--ease-out);
}
.faq-question:hover { background: var(--surface-hover); }
.faq-chevron {
  width: 18px;
  height: 18px;
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: transform var(--dur-base) var(--ease-out), color var(--dur-base) var(--ease-out);
}
.faq-item.open .faq-chevron { transform: rotate(180deg); color: var(--accent); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}
.faq-item.open .faq-answer { max-height: 400px; }
.faq-answer-inner {
  padding: 0 var(--space-6) var(--space-6);
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  font-size: var(--text-body);
}

/* ---- Contact card ---- */
.contact-card {
  background: linear-gradient(135deg, var(--surface-2) 0%, var(--surface-1) 100%);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  box-shadow: var(--glow-sm), var(--shadow-md);
  padding: var(--space-8) var(--space-9);
  text-align: center;
  margin-top: var(--space-9);
}
.contact-card .contact-label {
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  letter-spacing: var(--tracking-overline);
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-3);
}
.contact-card h2 {
  font-family: var(--font-display);
  font-size: var(--text-h2);
  font-weight: var(--weight-bold);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
  margin-bottom: var(--space-3);
}
.contact-card p {
  color: var(--text-secondary);
  margin-bottom: var(--space-6);
  max-width: 420px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--leading-relaxed);
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--accent);
  color: var(--text-on-accent);
  font-family: var(--font-body);
  font-size: var(--text-label);
  font-weight: var(--weight-semibold);
  padding: 0 var(--space-7);
  height: 48px;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  text-decoration: none;
  box-shadow: var(--glow-md);
  transition: background var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out),
              transform var(--dur-fast) var(--ease-out);
}
.btn-primary:hover {
  background: var(--accent-hover);
  box-shadow: var(--glow-lg);
  transform: scale(1.03);
  color: var(--text-on-accent);
}
.btn-primary:active { transform: scale(0.97); }

/* ---- Privacy Policy specific ---- */
.policy-section { margin-bottom: var(--space-8); }
.policy-section h2 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: var(--weight-semibold);
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  letter-spacing: var(--tracking-snug);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.policy-section h2 .num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: var(--text-caption);
  font-weight: var(--weight-bold);
  flex-shrink: 0;
}
.policy-section p {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-4);
}
.policy-section p:last-child { margin-bottom: 0; }
.policy-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding-left: var(--space-4);
}
.policy-section ul li {
  color: var(--text-secondary);
  line-height: var(--leading-relaxed);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}
.policy-section ul li::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
  margin-top: 8px;
}
.policy-section strong { color: var(--text-primary); font-weight: var(--weight-semibold); }
.policy-section a { color: var(--accent); }
.policy-section a:hover { text-decoration: underline; }

.last-updated {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--surface-2);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-caption);
  color: var(--text-tertiary);
  margin-bottom: var(--space-9);
}
.last-updated svg { width: 14px; height: 14px; color: var(--accent); }

/* ---- Language toggle ---- */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  background: var(--surface-2);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-pill);
  padding: 2px;
  gap: 0;
  margin-left: var(--space-2);
}
.lang-btn {
  font-family: var(--font-body);
  font-size: var(--text-micro);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.04em;
  padding: 4px 10px;
  border: none;
  border-radius: var(--radius-pill);
  background: transparent;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast) var(--ease-out);
  line-height: 1.4;
}
.lang-btn:hover {
  color: var(--text-primary);
  background: var(--surface-3);
}
.lang-btn.active {
  color: var(--text-on-accent);
  background: var(--accent);
  box-shadow: 0 0 10px rgba(94, 234, 212, 0.3);
}
.lang-btn.active:hover {
  background: var(--accent-hover);
}

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: var(--space-7) var(--gutter);
}
.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.footer-copy {
  font-size: var(--text-caption);
  color: var(--text-tertiary);
}
.footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}
.footer-links a {
  font-size: var(--text-caption);
  color: var(--text-tertiary);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer-links a:hover { color: var(--accent); }

/* ---- Ambient glow background ---- */
.glow-orb {
  position: fixed;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.08;
  z-index: 0;
}
.glow-orb-1 {
  width: 600px;
  height: 600px;
  background: var(--teal-400);
  top: -200px;
  right: -150px;
}
.glow-orb-2 {
  width: 400px;
  height: 400px;
  background: var(--violet-400);
  bottom: 10%;
  left: -100px;
}
.page-main { position: relative; z-index: 1; }
.site-header { position: sticky; z-index: 100; }

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .card { padding: var(--space-6) var(--space-5); }
  .contact-card { padding: var(--space-6) var(--space-5); }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .page-hero h1 { font-size: 26px; }
  
  /* Mobile nav adjustments */
  .nav-inner { gap: var(--space-2); padding: var(--space-3) var(--space-4); }
  .nav-logo-text { display: none; } /* Hide text on small screens to save space */
  .nav-logo svg { width: 32px; height: 32px; }
  .nav-links { gap: var(--space-1); }
  .nav-link { padding: var(--space-2) var(--space-2); font-size: 13px; }
  .lang-toggle { margin-left: var(--space-1); }
  .lang-btn { padding: 3px 6px; font-size: 10px; }
}

/* ============================================================
   MOTION LAYER — shared across all pages
   Activated only when <html class="anim"> is set (see inline
   head script). Reduced-motion users never get the class, so
   everything below is a safe progressive enhancement.
   ============================================================ */

/* ---- Ambient orbs: gentle drift ----
   Only `transform: translate` is animated (composited, no repaint).
   Scale is avoided so the expensive blur layer is never re-rasterized. */
html.anim .glow-orb-1 { animation: orb-float-1 26s ease-in-out infinite; }
html.anim .glow-orb-2 { animation: orb-float-2 32s ease-in-out infinite; }
@keyframes orb-float-1 {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50%      { transform: translate3d(-50px, 40px, 0); }
}
@keyframes orb-float-2 {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50%      { transform: translate3d(55px, -35px, 0); }
}

/* ---- Nav: elevate on scroll ---- */
.site-header {
  transition: background var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.site-header.scrolled {
  background: rgba(10, 13, 16, 0.82);
  border-bottom-color: var(--border-default);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

/* ---- Logo: gentle breathe ---- */
html.anim .nav-logo svg {
  animation: logo-breathe 6s ease-in-out infinite;
  transform-origin: center;
}
@keyframes logo-breathe {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.06); }
}
.nav-logo:hover svg { animation-play-state: paused; }

/* ---- Scroll reveal ---- */
html.anim .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
html.anim .reveal.in-view {
  opacity: 1;
  transform: none;
}

/* Staggered children inside a revealed container */
html.anim .reveal.reveal-stagger.in-view > * {
  animation: rise-in 0.6s var(--ease-out) both;
}
html.anim .reveal.reveal-stagger.in-view > *:nth-child(1) { animation-delay: 0.05s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(2) { animation-delay: 0.12s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(3) { animation-delay: 0.19s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(4) { animation-delay: 0.26s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(5) { animation-delay: 0.33s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(6) { animation-delay: 0.40s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(7) { animation-delay: 0.47s; }
html.anim .reveal.reveal-stagger.in-view > *:nth-child(8) { animation-delay: 0.54s; }
@keyframes rise-in {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

/* ---- Card & FAQ hover lift ---- */
.card {
  transition: transform var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--border-default);
  box-shadow: var(--shadow-lg), var(--ring-top);
}
.faq-item { transition: border-color var(--dur-base) var(--ease-out),
                        transform var(--dur-fast) var(--ease-out); }
.faq-item:hover { transform: translateX(3px); }

/* Contact card: breathing glow (composited pseudo, no per-frame repaint) */
.contact-card { position: relative; }
.contact-card > * { position: relative; z-index: 1; }
html.anim .contact-card::before {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  box-shadow: var(--glow-md);
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  animation: card-glow 5s ease-in-out infinite;
}
@keyframes card-glow {
  0%, 100% { opacity: 0.3; }
  50%      { opacity: 0.7; }
}

/* ---- Primary button: sheen sweep ---- */
.btn-primary { position: relative; overflow: hidden; }
.btn-primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.35), transparent);
  transform: skewX(-18deg);
  opacity: 0;
}
html.anim .btn-primary:hover::after {
  animation: sheen 0.7s var(--ease-out);
}
@keyframes sheen {
  0%   { left: -60%; opacity: 0; }
  15%  { opacity: 1; }
  100% { left: 130%; opacity: 0; }
}

/* ---- Animated accent gradient text (shared helper) ---- */
html.anim .grad-accent {
  background: linear-gradient(100deg, var(--teal-400), var(--teal-300), var(--violet-400), var(--teal-400));
  background-size: 300% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: grad-shift 8s ease-in-out infinite;
}
@keyframes grad-shift {
  0%, 100% { background-position: 0% 50%; }
  50%      { background-position: 100% 50%; }
}

/* ---- Respect reduced motion (belt & suspenders) ---- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1 !important; transform: none !important; }
}