/* ============================================================
   CUE — Design System
   ============================================================ */

/* ------------------------------------------------------------
   1. CSS Custom Properties
   ------------------------------------------------------------ */
:root {
  color-scheme: light;

  /* Backgrounds */
  --bg: #FAF7F2;
  --bg-strong: #F0EDE8;
  --surface: #FFFFFF;
  --surface-soft: #F4F2EE;
  --surface-elevated: rgba(255, 255, 255, 0.86);

  /* Text */
  --text: #2B2D33;
  --muted: #6B6E78;
  --border: rgba(43, 45, 51, 0.12);

  /* Accent — teal */
  --accent: #16C7BE;
  --accent-strong: #0FA8A0;

  /* Semantic colors */
  --orange: #FF981A;
  --green: #34c759;
  --blue: #2D6DF6;
  --purple: #af52de;
  --amber: #f59e0b;
  --red: #ef4444;

  /* Elevation */
  --shadow: 0 22px 60px rgba(22, 199, 190, 0.14);
  --shadow-soft: 0 10px 30px rgba(22, 199, 190, 0.09);

  /* Shared */
  --radius: 8px;
  --max: 1160px;
}

:root[data-theme="dark"] {
  color-scheme: dark;

  --bg: #0F1115;
  --bg-strong: #12151A;
  --surface: #1B1E24;
  --surface-soft: #22262E;
  --surface-elevated: rgba(27, 30, 36, 0.86);

  --text: #E8E8EE;
  --muted: #8C8F9A;
  --border: rgba(232, 232, 238, 0.1);

  --accent: #1AD4CC;
  --accent-strong: #16C7BE;

  --shadow: 0 22px 60px rgba(26, 212, 204, 0.12);
  --shadow-soft: 0 10px 30px rgba(26, 212, 204, 0.08);
}

/* ------------------------------------------------------------
   2. Reset & Base
   ------------------------------------------------------------ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: radial-gradient(circle at 12% 12%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 28rem),
              linear-gradient(180deg, var(--bg-strong), var(--bg) 28rem);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body.docs-page {
  background: linear-gradient(180deg, var(--bg-strong), var(--bg) 20rem);
  background-color: var(--bg);
}

ul {
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

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

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  transition: top 0.2s;
  z-index: 1000;
}
.skip-link:focus {
  top: 0.75rem;
}

/* ------------------------------------------------------------
   3. Header / Nav
   ------------------------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--surface-elevated);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 2rem;
  height: 60px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
}

.nav-links a {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.18s;
}
.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}

/* ------------------------------------------------------------
   4. Buttons
   ------------------------------------------------------------ */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 1.25rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s, background 0.15s;
  white-space: nowrap;
  text-decoration: none;
}

.button.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  border-color: var(--accent-strong);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 40%, transparent);
}
.button.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 45%, transparent);
}

.button.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}
.button.secondary:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent);
}

.icon-button {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.15s, border-color 0.15s;
}
.icon-button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

.language-toggle {
  min-height: 36px;
  padding: 0 0.9rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s, border-color 0.15s, color 0.15s;
}
.language-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent);
}

/* ------------------------------------------------------------
   5. Hero
   ------------------------------------------------------------ */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem 2rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3rem;
  min-height: 88vh;
}

@media (min-width: 768px) {
  .hero {
    flex-direction: row;
    align-items: center;
  }
  .hero-copy { flex: 1; }
  .hero-mockup { flex: 0 0 auto; }
}

.hero-copy {
  max-width: 560px;
}

.hero-copy h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--text) 0%, color-mix(in srgb, var(--text) 70%, var(--accent)) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-copy > p {
  font-size: 1.15rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 2rem;
  max-width: 480px;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.price-line {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 2rem;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
}

.proof-item {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  padding-right: 1.5rem;
}
.proof-item + .proof-item {
  padding-left: 1.5rem;
  border-left: 1px solid var(--border);
}

.proof-item strong {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.01em;
}

.proof-item span {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Hero mockup float animation */
@media (prefers-reduced-motion: no-preference) {
  .hero-mockup {
    animation: lift 5s ease-in-out infinite;
  }
}

@keyframes lift {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-10px); }
}

/* Device image mockup — iPhone is the anchor, Watch overlaps bottom-left */
.hero-mockup {
  position: relative;
  display: inline-block;
  width: 260px;
  flex-shrink: 0;
  filter: drop-shadow(var(--shadow));
  padding-left: 14%;   /* room for the watch that bleeds left */
}

/* iPhone — fills the container width */
.hero-iphone {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 28px;
  position: relative;
  z-index: 1;
}

/* Watch — absolute, bottom-left, roughly 44% the iPhone width */
.hero-watch {
  position: absolute;
  width: 44%;
  height: auto;
  bottom: 0;
  left: -14%;          /* bleeds slightly past the left edge */
  z-index: 2;
  border-radius: 18px;
}

@media (min-width: 768px) {
  .hero-mockup { width: 300px; }
}

@media (min-width: 1024px) {
  .hero-mockup { width: 340px; }
}

/* ------------------------------------------------------------
   6. Sections
   ------------------------------------------------------------ */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 5rem 2rem;
}

.section-header {
  max-width: 680px;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3.5vw, 2.4rem);
  font-weight: 750;
  letter-spacing: -0.025em;
  line-height: 1.2;
  margin-bottom: 0.75rem;
}

.section-header p {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ------------------------------------------------------------
   7. Feature Grid
   ------------------------------------------------------------ */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.feature-icon {
  color: var(--accent-strong);
  flex-shrink: 0;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
}

/* ------------------------------------------------------------
   8. Device Band
   ------------------------------------------------------------ */
.device-band {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.device-triptych {
  display: flex;
  gap: 1rem;
  align-items: stretch;
}

/* Device panels */
.device-panel {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  min-width: 0;
  box-shadow: var(--shadow-soft);
}

.device-panel-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

/* iPhone panel */
.iphone-panel .dp-list-name {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text);
}

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

.dp-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--text);
}

.dp-check {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  flex-shrink: 0;
}

.dp-check.active {
  background: var(--accent);
  border-color: var(--accent);
  position: relative;
}
.dp-check.active::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 6px;
  height: 4px;
  border-left: 1.5px solid #fff;
  border-bottom: 1.5px solid #fff;
  transform: translate(-50%, -60%) rotate(-45deg);
}

.dp-switch-row {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border);
}

.dp-pill {
  font-size: 0.65rem;
  padding: 2px 8px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--muted);
  white-space: nowrap;
}
.dp-pill.active {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  border-color: var(--accent);
  color: var(--accent);
  font-weight: 600;
}

/* Watch panel */
.watch-panel {
  background: #1B1E24;
  border-color: rgba(255,255,255,0.08);
}

.watch-panel .device-panel-label {
  color: rgba(255,255,255,0.4);
}

.watch-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.watch-title {
  font-size: 0.72rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.watch-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.85);
}

.watch-ring {
  width: 28px;
  height: 28px;
  flex-shrink: 0;
}
.watch-ring svg {
  width: 100%;
  height: 100%;
}

.watch-mic {
  margin-top: auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: color-mix(in srgb, #16C7BE 25%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Widget panel */
.widget-card {
  flex: 1;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border-radius: 12px;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 4px;
  color: #fff;
}

.widget-icon {
  margin-bottom: 4px;
}

.widget-title {
  font-size: 0.85rem;
  font-weight: 700;
}

.widget-count {
  font-size: 0.7rem;
  opacity: 0.75;
}

.widget-items {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.68rem;
  opacity: 0.85;
}

/* ------------------------------------------------------------
   9. Timeline
   ------------------------------------------------------------ */
.timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 20px;
  left: calc(1.5rem / 2 + 20px);
  right: calc(1.5rem / 2 + 20px);
  height: 1px;
  background: var(--border);
}

.timeline-item {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  position: relative;
  padding-top: 0;
}

.number {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 4px var(--bg), 0 0 0 5px var(--border);
}

.timeline-item h3 {
  font-size: 0.95rem;
  font-weight: 650;
  margin-top: 0.5rem;
}

.timeline-item p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.55;
}

/* ------------------------------------------------------------
   10. Privacy Strip
   ------------------------------------------------------------ */
.privacy-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.privacy-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  padding: 1.5rem;
  box-shadow: var(--shadow-soft);
}

.privacy-item h3 {
  font-size: 0.95rem;
  font-weight: 650;
  margin-bottom: 0.5rem;
}

.privacy-item p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.5;
}

/* ------------------------------------------------------------
   11. Download Band
   ------------------------------------------------------------ */
.download-band {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 2);
  padding: 3rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.download-band::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%);
  pointer-events: none;
}

.download-band h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.9rem);
  font-weight: 750;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.download-band p {
  font-size: 1rem;
  color: var(--muted);
}

/* ------------------------------------------------------------
   12. Footer
   ------------------------------------------------------------ */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 3rem;
}

.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.75rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.footer-inner > span {
  font-size: 0.85rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--muted);
  transition: color 0.18s;
}
.footer-links a:hover {
  color: var(--accent);
}

/* ------------------------------------------------------------
   13. Docs Pages
   ------------------------------------------------------------ */
.docs-shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 3rem 2rem 5rem;
}

.doc-meta {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.docs-shell h1 {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 0.75rem;
}

.docs-lead {
  font-size: 1.05rem;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.docs-grid {
  display: grid;
  gap: 1.25rem;
}

.support-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.5);
  padding: 1.75rem;
  box-shadow: var(--shadow-soft);
}

.support-card h2 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.support-card p {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.6;
}

.support-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.support-card ul li {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.55;
  padding-left: 1.25rem;
  position: relative;
}

.support-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ------------------------------------------------------------
   14. Responsive
   ------------------------------------------------------------ */
@media (max-width: 900px) {
  .nav {
    flex-wrap: wrap;
    height: auto;
    padding: 0.75rem 1.5rem;
    gap: 0.75rem;
  }

  .nav-links {
    order: 3;
    width: 100%;
    gap: 1rem;
    margin-left: 0;
    padding-bottom: 0.25rem;
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .device-band {
    grid-template-columns: 1fr;
  }

  .timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline::before {
    display: none;
  }

  .privacy-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .download-band {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .hero {
    padding: 3rem 1.25rem 2.5rem;
    gap: 2rem;
    min-height: auto;
  }

  .section {
    padding: 3rem 1.25rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .device-triptych {
    flex-direction: column;
  }

  .timeline {
    grid-template-columns: 1fr;
  }

  .privacy-strip {
    grid-template-columns: 1fr;
  }

  .hero-proof {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .proof-item + .proof-item {
    padding-left: 0;
    border-left: none;
    border-top: 1px solid var(--border);
    padding-top: 1rem;
  }

  .download-band {
    padding: 2rem 1.25rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* ------------------------------------------------------------
   15. Accessibility
   ------------------------------------------------------------ */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}