/* kokoro marketing site — electric dark palette */

:root {
  --bg:         #0a0a0f;
  --bg-raised:  #12121a;
  --bg-card:    #16162266;
  --border:     rgba(167, 139, 250, 0.08);
  --border-glow: rgba(167, 139, 250, 0.25);
  --text:       #a1a1aa;
  --text-dim:   #52525b;
  --text-bright:#e4e4e7;
  --heading:    #fafafa;
  --accent:     #a78bfa;
  --accent-2:   #22d3ee;
  --code-bg:    #111118;
  --code-border: rgba(167, 139, 250, 0.12);
}

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

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

::selection {
  background: rgba(167, 139, 250, 0.25);
  color: var(--heading);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

/* ── Accessibility ── */

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--accent);
  color: var(--bg);
  border-radius: 0 0 4px 4px;
  z-index: 100;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
}

.skip-link:focus { top: 0; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ── Layout ── */

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 2rem;
}

section {
  padding: 5rem 0;
}

/* ── Hero ── */

.hero {
  text-align: center;
  padding: 8rem 0 5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(167, 139, 250, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

button.hero-glyph {
  display: block;
  margin: 0 auto 2rem;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: transform 0.2s ease;
}

button.hero-glyph:hover {
  transform: scale(1.05);
}

button.hero-glyph:active {
  transform: scale(0.98);
}

button.hero-glyph:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 8px;
  border-radius: 50%;
}

button.hero-glyph.playing svg {
  animation: glyph-spin 4s linear infinite;
}

@keyframes glyph-spin {
  0%   { filter: drop-shadow(0 0 35px rgba(196, 181, 253, 0.5)); }
  33%  { filter: drop-shadow(0 0 50px rgba(129, 140, 248, 0.6)); }
  66%  { filter: drop-shadow(0 0 50px rgba(103, 232, 249, 0.5)); }
  100% { filter: drop-shadow(0 0 35px rgba(196, 181, 253, 0.5)); }
}

.hero-glyph-hint {
  display: block;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
  transition: color 0.2s ease;
}

button.hero-glyph:hover .hero-glyph-hint {
  color: var(--accent);
}

button.hero-glyph.playing .hero-glyph-hint {
  color: var(--accent);
}

.hero-glyph svg {
  filter: drop-shadow(0 0 35px rgba(196, 181, 253, 0.35));
  animation: glyph-breathe 6s ease-in-out infinite;
}

@keyframes glyph-breathe {
  0%, 100% { filter: drop-shadow(0 0 35px rgba(196, 181, 253, 0.35)); }
  50%      { filter: drop-shadow(0 0 60px rgba(129, 140, 248, 0.5)); }
}

@keyframes bar-pulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 1; }
}

.bar { animation: bar-pulse 2s ease-in-out infinite; }
.bar-1 { animation-delay: 0s; }
.bar-2 { animation-delay: 0.15s; }
.bar-3 { animation-delay: 0.3s; }
.bar-4 { animation-delay: 0.45s; }
.bar-5 { animation-delay: 0.6s; }
.bar-6 { animation-delay: 0.75s; }
.bar-7 { animation-delay: 0.9s; }
.bar-8 { animation-delay: 1.05s; }

.hero h1 {
  font-size: 4rem;
  font-weight: 700;
  color: var(--heading);
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, var(--heading) 60%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  font-size: 1.5rem;
  color: var(--text-bright);
  font-weight: 400;
  margin-bottom: 0.75rem;
}

.hero .sub-tagline {
  font-size: 1rem;
  color: var(--text-dim);
  margin-bottom: 2.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}


.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(135deg, #7c3aed, #6d28d9);
  color: #fafafa;
  border: 1px solid rgba(167, 139, 250, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #8b5cf6, #7c3aed);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(124, 58, 237, 0.25);
}

.btn-secondary {
  background: var(--bg-raised);
  color: var(--text-bright);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--border-glow);
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(0);
}

/* ── Pitch strip ── */

.pitch {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 0;
}

.pitch-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  text-align: center;
}

.pitch-item h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.5rem;
}

.pitch-item p {
  font-size: 0.9rem;
  color: var(--text);
  line-height: 1.55;
}

.accent {
  color: var(--accent);
}

/* ── Neural Engine callout ── */

.ane {
  padding: 6rem 0;
  position: relative;
  overflow: hidden;
}

.ane::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 30%;
  transform: translate(-50%, -50%);
  width: 500px;
  height: 500px;
  background: radial-gradient(ellipse, rgba(167, 139, 250, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.ane-layout {
  display: flex;
  align-items: center;
  gap: 4rem;
  max-width: 780px;
  margin: 0 auto;
}

.ane-chip {
  flex-shrink: 0;
}

.ane-chip svg {
  filter: drop-shadow(0 0 40px rgba(196, 181, 253, 0.3));
  animation: chip-breathe 8s ease-in-out infinite;
}

@keyframes chip-breathe {
  0%, 100% { filter: drop-shadow(0 0 40px rgba(196, 181, 253, 0.3)); }
  50%      { filter: drop-shadow(0 0 70px rgba(103, 232, 249, 0.4)); }
}

@keyframes dot-fire {
  0%, 100% { opacity: 0.3; r: 4; }
  50%      { opacity: 1; r: 5; }
}

.dot { animation: dot-fire 3s ease-in-out infinite; }
.dot-1  { animation-delay: 0s; }
.dot-2  { animation-delay: 0.18s; }
.dot-3  { animation-delay: 0.36s; }
.dot-4  { animation-delay: 0.54s; }
.dot-5  { animation-delay: 0.72s; }
.dot-6  { animation-delay: 0.15s; }
.dot-7  { animation-delay: 0.33s; }
.dot-8  { animation-delay: 0.9s; }
.dot-9  { animation-delay: 1.08s; }
.dot-10 { animation-delay: 0.45s; }
.dot-11 { animation-delay: 0.6s; }
.dot-12 { animation-delay: 1.26s; }
.dot-13 { animation-delay: 1.44s; }
.dot-14 { animation-delay: 0.8s; }
.dot-15 { animation-delay: 1.0s; }
.dot-16 { animation-delay: 1.62s; }

.ane-label {
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.ane-copy h2 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--heading);
  margin-bottom: 1.25rem;
  letter-spacing: -0.02em;
}

.ane-desc {
  font-size: 0.95rem;
  color: var(--text);
  line-height: 1.65;
  max-width: 520px;
  margin-bottom: 0.75rem;
}

.ane-desc:last-child {
  margin-bottom: 0;
}

/* ── Voices ── */

.voices {
  padding: 5rem 0;
  text-align: center;
}

.voices h2,
.features h2,
.code-section h2,
.usecases h2,
.api-ref h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

.section-desc {
  color: var(--text);
  margin-bottom: 2.5rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.voice-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  max-width: 700px;
  margin: 0 auto;
}

button.voice-chip {
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.8rem;
  padding: 0.45rem 0.9rem;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--accent-2);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

button.voice-chip:hover {
  border-color: var(--border-glow);
  background: rgba(167, 139, 250, 0.06);
}

button.voice-chip:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button.voice-chip.playing {
  border-color: var(--accent);
  background: rgba(167, 139, 250, 0.1);
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.15);
}

.voice-flag {
  margin-right: 0.15rem;
}

.voice-gender {
  font-size: 0.7rem;
  opacity: 0.4;
  margin-left: 0.1rem;
}

.voice-play {
  font-size: 0.6rem;
  margin-left: 0.35rem;
  opacity: 0;
  transition: opacity 0.2s ease;
}

button.voice-chip:hover .voice-play,
button.voice-chip.playing .voice-play {
  opacity: 0.6;
}

button.voice-chip.playing .voice-play::after {
  content: "◼";
}

.voice-chip.dim {
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.8rem;
  padding: 0.45rem 0.9rem;
  color: var(--text-dim);
  border: none;
  background: transparent;
}

.voice-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 1rem;
  text-align: center;
}

/* ── Code section ── */

.code-section {
  padding: 4rem 0;
  text-align: center;
}

.code-block {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 10px;
  padding: 1.5rem 2rem;
  text-align: left;
  max-width: 680px;
  margin: 0 auto;
  overflow-x: auto;
}

.code-block pre {
  margin: 0;
}

.code-block code {
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.88rem;
  line-height: 1.7;
  color: var(--text-bright);
}

.code-sm {
  padding: 1.25rem 1.5rem;
}

.code-sm code {
  font-size: 0.82rem;
  line-height: 1.6;
}

.kw { color: #c084fc; }
.ty { color: #22d3ee; }
.fn { color: #a78bfa; }
.str { color: #34d399; }
.num { color: #fbbf24; }
.cm { color: #52525b; }

.code-note {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 1rem;
}

/* ── Features grid ── */

.features {
  padding: 5rem 0;
}

.features h2 {
  text-align: center;
  margin-bottom: 2.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s ease;
}

.feature-card:hover {
  border-color: var(--border-glow);
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.5rem;
}

.feature-card p {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.5;
}

/* ── Performance stats ── */

.perf {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 4rem 0;
}

.perf-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 2rem;
  text-align: center;
}

.perf-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.25rem;
}

.perf-label {
  font-size: 0.82rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Use cases ── */

.usecases {
  padding: 5rem 0;
  text-align: center;
}

.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  text-align: left;
}

.usecase-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s ease;
}

.usecase-card:hover {
  border-color: var(--border-glow);
}

.usecase-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.5rem;
}

.usecase-card p {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.5;
}

.usecase-card code {
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.8rem;
  padding: 0.15rem 0.4rem;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 4px;
  color: var(--accent-2);
}

/* ── CLI terminal ── */

.cli {
  padding: 5rem 0;
  text-align: center;
}

.cli h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

.terminal {
  max-width: 680px;
  margin: 0 auto;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--code-border);
  text-align: left;
}

.terminal-bar {
  background: #1a1a24;
  padding: 0.65rem 0.85rem;
  display: flex;
  gap: 0.4rem;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
}

.terminal-dot:first-child { background: #ff5f57; }
.terminal-dot:nth-child(2) { background: #febc2e; }
.terminal-dot:nth-child(3) { background: #28c840; }

.terminal-body {
  background: var(--code-bg);
  padding: 1.25rem 1.5rem;
}

.terminal-body pre {
  margin: 0;
}

.terminal-body code {
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--text-bright);
}

.terminal-body .prompt {
  color: var(--accent);
  user-select: none;
}

/* ── Install ── */

.install {
  border-top: 1px solid var(--border);
  padding: 5rem 0;
  text-align: center;
}

.install h2 {
  font-size: 2rem;
  font-weight: 600;
  color: var(--heading);
  margin-bottom: 0.75rem;
}

.install-methods {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 680px;
  margin: 0 auto;
}

.install-label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  display: block;
  margin-bottom: 0.5rem;
}

.install-code {
  position: relative;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: 8px;
  padding: 1rem 1.25rem;
  font-family: "SF Mono", "Fira Code", "Menlo", monospace;
  font-size: 0.85rem;
  color: var(--accent-2);
  text-align: left;
  user-select: all;
  margin: 0;
  overflow-x: auto;
}

.install-code::after {
  content: "click to select";
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", sans-serif;
  font-size: 0.65rem;
  color: var(--text-dim);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
}

.install-code:hover::after {
  opacity: 1;
}

.install-note {
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 1.5rem;
}

/* ── API reference ── */

.api-ref {
  padding: 5rem 0;
}

.api-ref h2 {
  text-align: center;
  margin-bottom: 2.5rem;
}

.api-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem;
}

.api-example h3 {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

/* ── Footer ── */

.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  text-align: center;
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-dim);
}

.footer a {
  color: var(--text);
  text-decoration: none;
}

.footer a:hover,
.footer a:focus-visible {
  color: var(--accent);
}

/* ── Responsive ── */

@media (max-width: 768px) {
  .hero {
    padding: 5rem 0 3rem;
  }

  .hero h1 {
    font-size: 2.75rem;
  }

  .hero .tagline {
    font-size: 1.2rem;
  }

  .ane-layout {
    flex-direction: column;
    text-align: center;
    gap: 2rem;
  }

  .ane-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .pitch-grid,
  .features-grid,
  .usecase-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  .api-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  section {
    padding: 3rem 0;
  }

  .container {
    padding: 0 1.25rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.25rem;
  }

  .hero .tagline {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

  .perf-number {
    font-size: 2rem;
  }
}

/* ── Print ── */

@media print {
  body {
    background: #fff;
    color: #111;
  }

  .hero::before,
  .hero-glyph svg {
    display: none;
  }

  .btn { border: 1px solid #999; }
}