/* Phone Whisper landing */

:root {
  --accent: #1A73E8;
  --accent-dark: #1558B0;
  --accent-subtle: #D2E3FC;
  --accent-on-subtle: #174EA6;

  --bg: #FFFFFF;
  --bg-section: #F8F9FA;
  --surface: #FFFFFF;
  --border: #E0E0E0;
  --border-strong: #BDBDBD;

  --text: #1F1F1F;
  --text-secondary: #5F6368;
  --text-muted: #80868B;

  --overlay-idle: #1C1C1E;
  --overlay-recording: #EF4444;
  --overlay-busy: #6B6B6B;

  --step-num-bg: #E8F0FD;
  --step-num-color: var(--accent);
  --info-bg: #EAF1FD;
  --info-border: #AECBFA;

  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 8px;
  --radius-lg: 14px;
  --max-w: 980px;
  --section-pad: 80px 24px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent: #8AB4F8;
    --accent-dark: #AECBFA;
    --accent-subtle: #1A3A6B;
    --accent-on-subtle: #D2E3FC;

    --bg: #111418;
    --bg-section: #1A1E23;
    --surface: #161B20;
    --border: #2D3137;
    --border-strong: #44474E;

    --text: #E2E5EA;
    --text-secondary: #9AA0A6;
    --text-muted: #6E7479;

    --overlay-idle: #1C1C1E;
    --overlay-recording: #EF4444;
    --overlay-busy: #6B6B6B;

    --step-num-bg: #1A3A6B;
    --step-num-color: #8AB4F8;
    --info-bg: #152035;
    --info-border: #2A4A80;
  }
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

#nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  text-decoration: none;
}
.nav-logo:hover { text-decoration: none; }
.nav-icon { width: 28px; height: 28px; flex-shrink: 0; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
}
.nav-links a {
  font-size: 14px;
  color: var(--text-secondary);
  text-decoration: none;
  white-space: nowrap;
}
.nav-links a:hover { color: var(--text); text-decoration: none; }
#nav-github { color: var(--accent); font-weight: 500; }
#nav-github:hover { color: var(--accent-dark); }

@media (max-width: 700px) {
  .nav-links a:not(#nav-github) { display: none; }
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s, color .15s;
  white-space: nowrap;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  text-decoration: none;
}
.btn-secondary {
  background: transparent;
  color: var(--accent);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-subtle);
  text-decoration: none;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}
.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  background: var(--bg);
}

#hero {
  padding: 72px 24px 80px;
  background: var(--bg);
}
.hero-content {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  align-items: center;
  gap: 64px;
}
.hero-text h1 {
  font-size: clamp(28px, 4vw, 46px);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.6px;
  margin-bottom: 18px;
}
.hero-sub {
  font-size: 17px;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 18px;
}
.hero-points {
  list-style: none;
  display: grid;
  gap: 10px;
  margin: 0 0 32px;
  padding: 0;
}
.hero-points li {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
  padding-left: 18px;
  position: relative;
}
.hero-points li::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  position: absolute;
  left: 0;
  top: 0.55em;
}
.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 20px;
}
.hero-links {
  font-size: 14px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.hero-links a { color: var(--text-secondary); }
.hero-links a:hover { color: var(--text); }
.sep { color: var(--border-strong); }

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}
.phone-demo-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}
.demo-caption {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--accent-subtle);
  color: var(--accent-on-subtle);
  font-size: 13px;
  font-weight: 600;
}
.phone-frame {
  width: 240px;
  height: 470px;
  background: var(--surface);
  border: 2px solid var(--border-strong);
  border-radius: 36px;
  overflow: hidden;
  position: relative;
  box-shadow: 0 12px 40px rgba(0,0,0,.12);
}
.phone-screen {
  height: 100%;
  display: flex;
  flex-direction: column;
  position: relative;
  background: var(--bg);
}
.phone-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 16px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
}
.status-icons {
  display: flex;
  gap: 4px;
  align-items: center;
}
.phone-app-header {
  padding: 8px 16px 10px;
  border-bottom: 1px solid var(--border);
}
.phone-app-title {
  font-weight: 600;
  font-size: 15px;
}
.phone-chat {
  flex: 1;
  padding: 16px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  justify-content: flex-end;
}
.chat-bubble {
  max-width: 82%;
  padding: 8px 12px;
  border-radius: 16px;
  font-size: 13px;
  line-height: 1.4;
}
.chat-bubble.received {
  align-self: flex-start;
  background: var(--bg-section);
  border: 1px solid var(--border);
  color: var(--text);
  border-bottom-left-radius: 4px;
}
.chat-bubble.subtle {
  opacity: .8;
  max-width: 52%;
}
.phone-input-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px 14px;
  border-top: 1px solid var(--border);
}
.phone-input-field {
  flex: 1;
  min-height: 36px;
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 7px 12px;
  font-size: 12px;
  color: var(--text);
  background: var(--bg);
  display: flex;
  align-items: center;
  overflow: hidden;
}
.input-placeholder {
  color: var(--text-muted);
}
.typed-input {
  color: var(--text);
}
.phone-send-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
  transition: background .18s ease, transform .18s ease;
}
.phone-send-btn.ready {
  background: var(--accent);
  transform: scale(1.03);
}

.overlay-button {
  position: absolute;
  bottom: 72px;
  right: 14px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--overlay-idle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 8px 18px rgba(0,0,0,.22);
  animation: float 3s ease-in-out infinite;
}
.overlay-button svg { width: 22px; height: 22px; }
.overlay-button.recording {
  background: var(--overlay-recording);
  animation: pulse-recording 1s ease-in-out infinite;
}
.overlay-button.busy {
  background: var(--overlay-busy);
  animation: none;
}
.overlay-button-small {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 40px;
  height: 40px;
}

.cursor {
  font-weight: 300;
  margin-left: 1px;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 0%,100%{opacity:1;} 50%{opacity:0;} }
@keyframes float { 0%,100%{transform:translateY(0);} 50%{transform:translateY(-4px);} }
@keyframes spin { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
@keyframes pulse-recording {
  0%,100% { transform: scale(1); box-shadow: 0 8px 18px rgba(239,68,68,.25); }
  50% { transform: scale(1.06); box-shadow: 0 10px 26px rgba(239,68,68,.45); }
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: var(--section-pad);
}
section + section { border-top: 1px solid var(--border); }
h2 {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.2px;
}
.section-sub {
  color: var(--text-secondary);
  margin-bottom: 36px;
  font-size: 16px;
}
.section-kicker {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
}

#termux { background: var(--bg-section); }
.termux-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 420px;
  align-items: center;
  gap: 40px;
}
.dev-mode-examples {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: -12px;
}
.dev-example {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  font-size: 13px;
  line-height: 1.5;
}
.dev-example-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
}
.dev-example code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 12px;
  background: var(--bg-section);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px 6px;
  color: var(--text);
}
.dev-example-arrow {
  color: var(--accent);
  font-weight: 700;
}
.termux-card {
  position: relative;
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  background: #0E1116;
  color: #D7DBE0;
  box-shadow: 0 10px 32px rgba(0,0,0,.14);
}
.termux-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 14px;
  border-bottom: 1px solid rgba(255,255,255,.08);
  background: #121720;
}
.termux-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.24);
}
.termux-title {
  margin-left: 4px;
  font-size: 13px;
  color: rgba(255,255,255,.7);
}
.termux-mode-badge {
  margin-left: auto;
  font-size: 11px;
  font-weight: 600;
  color: #D2E3FC;
  background: rgba(26,115,232,.35);
  border: 1px solid rgba(138,180,248,.35);
  border-radius: 999px;
  padding: 3px 8px;
}
.speech-bubble {
  position: absolute;
  right: 26px;
  bottom: 66px;
  padding: 10px 12px;
  border-radius: 14px;
  background: #1A73E8;
  color: #fff;
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.45;
  max-width: 250px;
  min-height: 38px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease;
  z-index: 2;
}
.speech-bubble::after {
  content: '';
  position: absolute;
  right: 4px;
  bottom: -6px;
  width: 12px;
  height: 12px;
  background: #1A73E8;
  transform: rotate(45deg);
  border-radius: 2px;
}
.speech-bubble.visible {
  opacity: 1;
  transform: translateY(0);
}
.termux-body {
  padding: 18px 16px 54px;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  min-height: 182px;
}
.termux-line { margin-bottom: 10px; }
.termux-line.muted { color: #7F8A98; }
.prompt { color: #8AB4F8; }
.termux-note {
  margin-top: 18px;
  color: #9DB0C6;
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.55;
}

#how-it-works { background: var(--bg); }
.steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  margin-top: 32px;
}
.step {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
}
.step:last-child { border-bottom: none; }
.step-num {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--step-num-bg);
  color: var(--step-num-color);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}
.step-body strong {
  display: block;
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 4px;
}
.step-body p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}

#modes { background: var(--bg-section); }
.modes-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 8px;
}
.mode-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  background: var(--surface);
}
.mode-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 16px;
}
.mode-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 24px;
}
.mode-card ul li {
  font-size: 14px;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
}
.mode-card ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}
.models-table {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 13px;
}
.models-table-head {
  padding: 8px 12px;
  background: var(--bg-section);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  border-bottom: 1px solid var(--border);
}
.model-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
}
.model-row:last-child { border-bottom: none; }
.model-name { flex: 1; font-weight: 500; color: var(--text); }
.model-size { color: var(--text-muted); font-size: 12px; white-space: nowrap; }
.model-note { color: var(--text-muted); font-size: 11px; white-space: nowrap; }
.default-badge { color: var(--accent); font-weight: 600; }
.cloud-note {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13px;
  color: var(--text-secondary);
  background: var(--bg-section);
}

#accessibility { background: var(--bg); }
.info-box {
  border: 1px solid var(--info-border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  background: var(--info-bg);
}
.info-box h2 { margin-bottom: 16px; }
.info-box p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.65;
}
.info-box p:last-of-type { margin-bottom: 20px; }
.info-box strong { color: var(--text); }
.info-link { font-size: 14px; font-weight: 500; color: var(--accent); }

#privacy { background: var(--bg-section); }
.privacy-points {
  display: flex;
  flex-direction: column;
  margin-top: 8px;
  margin-bottom: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}
.privacy-point {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.privacy-point:last-child { border-bottom: none; }
.pp-icon { flex-shrink: 0; color: var(--accent); margin-top: 2px; }
.privacy-point strong {
  display: block;
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}
.privacy-point p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.55;
}
.privacy-links {
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

#faq { background: var(--bg); }
.faq-list {
  display: flex;
  flex-direction: column;
  margin-top: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
}
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item:last-child { border-bottom: none; }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  user-select: none;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  font-size: 20px;
  font-weight: 400;
  color: var(--text-secondary);
  transition: transform .2s;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item:hover summary { background: var(--accent-subtle); }
.faq-item[open] summary {
  background: var(--accent-subtle);
  color: var(--accent-on-subtle);
}
.faq-item p {
  padding: 16px 22px 20px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.65;
  border-top: 1px solid var(--border);
}

#footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 40px 24px;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.footer-line { font-size: 14px; color: var(--text-secondary); }
.footer-links {
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.footer-links a { color: var(--text-secondary); }
.footer-links a:hover { color: var(--text); }

@media (max-width: 900px) {
  .hero-content,
  .termux-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .hero-visual { order: -1; }
}

@media (max-width: 640px) {
  #hero { padding-top: 56px; }
  .section-inner { padding: 64px 20px; }
  .modes-grid { grid-template-columns: 1fr; }
  .phone-frame {
    width: 210px;
    height: 412px;
  }
  .hero-sub br { display: none; }
}