/* Auto Video Subtitle Generator — subtitle.bdebtech.in */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.18vw, 1.08rem);
  line-height: 1.65;
  min-height: 100vh;
  overflow-x: hidden;
}
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }

:root {
  --bg: #060811;
  --bg-2: #0a0f1f;
  --surface: #10162b;
  --elev: #161e38;
  --fg: #eef2ff;
  --muted: #93a0bd;
  --cyan: #38e8f5;
  --teal: #2dd4bf;
  --purple: #8b5cf6;
  --violet: #c084fc;
  --amber: #fbbf24;
  --emerald: #34d399;
  --line: rgba(255, 255, 255, 0.09);
  --line-bright: rgba(56, 232, 245, 0.34);
  --glow-cyan: rgba(56, 232, 245, 0.22);
  --glow-purple: rgba(139, 92, 246, 0.25);
  --radius: 20px;
  --radius-sm: 12px;
  --max: 1180px;
  --sans: "Inter", "Geist", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --shadow: 0 28px 80px rgba(0, 0, 0, 0.55);
  color-scheme: dark;
}

::selection { background: var(--cyan); color: #031117; }
:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 200;
  padding: 0.65rem 1.1rem;
  border-radius: 999px;
  background: var(--cyan);
  color: #031117;
  font-weight: 700;
}
.skip-link:focus { top: 1rem; }

.shell {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  background: rgba(6, 8, 17, 0.78);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 72px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
}
.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  box-shadow: 0 0 24px rgba(56, 232, 245, 0.28);
  border: 1px solid rgba(255, 255, 255, 0.14);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name { font-size: 1rem; letter-spacing: -0.02em; }
.brand-sub {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  font-size: 0.94rem;
  color: var(--muted);
}
.nav-links a:hover { color: var(--fg); }
.header-ctas { display: flex; align-items: center; gap: 0.65rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.72rem 1.25rem;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.95rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
  white-space: nowrap;
}
.btn:hover {
  transform: translateY(-1px);
  border-color: var(--line-bright);
}
.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, #5eead4 50%, #a78bfa 100%);
  color: #041019;
  border-color: transparent;
  box-shadow: 0 12px 34px rgba(56, 232, 245, 0.28);
}
.btn-primary:hover {
  box-shadow: 0 16px 42px rgba(56, 232, 245, 0.42);
}
.btn-ghost {
  background: rgba(16, 22, 43, 0.7);
  border-color: rgba(255, 255, 255, 0.14);
}
.btn-lg {
  padding: 0.92rem 1.6rem;
  font-size: 1.03rem;
}

/* Hero */
.hero {
  position: relative;
  padding: 4.5rem 0 4rem;
  background:
    radial-gradient(900px 460px at 14% 8%, var(--glow-cyan), transparent 60%),
    radial-gradient(820px 440px at 88% 18%, var(--glow-purple), transparent 60%),
    linear-gradient(180deg, #060811 0%, #090d1b 100%);
  border-bottom: 1px solid var(--line);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}
.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
}
.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: rgba(56, 232, 245, 0.11);
  border: 1px solid rgba(56, 232, 245, 0.32);
  color: var(--cyan);
}
.pill-purple {
  background: rgba(139, 92, 246, 0.14);
  border-color: rgba(192, 132, 252, 0.34);
  color: #d8b4fe;
}
.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--emerald);
  box-shadow: 0 0 12px var(--emerald);
}
h1 {
  font-size: clamp(2.25rem, 1.6rem + 2.6vw, 3.7rem);
  line-height: 1.07;
  letter-spacing: -0.035em;
  margin: 0 0 1rem;
}
.gradient-text {
  background: linear-gradient(95deg, #38e8f5 0%, #7dd3fc 40%, #c084fc 85%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-lead {
  font-size: clamp(1.06rem, 1rem + 0.3vw, 1.22rem);
  color: var(--muted);
  max-width: 62ch;
  margin: 0 0 1.75rem;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.8rem;
}
.trust-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}
.trust-item strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--fg);
  letter-spacing: -0.02em;
}
.trust-item span {
  font-size: 0.8rem;
  color: var(--muted);
}

/* Interactive Phone Preview Mockup */
.phone-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.phone-frame {
  width: min(350px, 100%);
  border-radius: 36px;
  padding: 14px;
  background: linear-gradient(160deg, #1e293b 0%, #0b1022 60%, #1e1b4b 100%);
  border: 1px solid rgba(255, 255, 255, 0.16);
  box-shadow: var(--shadow), 0 0 60px rgba(56, 232, 245, 0.16);
}
.phone-screen {
  border-radius: 26px;
  background: #090d1c;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.phone-statusbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.55rem 1rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.03);
}
.video-canvas {
  position: relative;
  aspect-ratio: 9 / 12.5;
  background:
    radial-gradient(circle at 50% 28%, rgba(139, 92, 246, 0.35), transparent 58%),
    radial-gradient(circle at 30% 75%, rgba(56, 232, 245, 0.25), transparent 55%),
    linear-gradient(180deg, #111936 0%, #090d1c 100%);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 1rem;
}
.video-top-pills {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}
.chip-mini {
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(6, 8, 17, 0.75);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--fg);
}
.speaker-wave {
  margin: auto;
  display: flex;
  align-items: center;
  gap: 5px;
  height: 54px;
}
.speaker-wave i {
  display: block;
  width: 5px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--cyan), var(--purple));
  animation: wavePulse 1.2s ease-in-out infinite;
}
.speaker-wave i:nth-child(1) { height: 18px; animation-delay: 0s; }
.speaker-wave i:nth-child(2) { height: 34px; animation-delay: 0.12s; }
.speaker-wave i:nth-child(3) { height: 48px; animation-delay: 0.24s; }
.speaker-wave i:nth-child(4) { height: 28px; animation-delay: 0.36s; }
.speaker-wave i:nth-child(5) { height: 52px; animation-delay: 0.18s; }
.speaker-wave i:nth-child(6) { height: 38px; animation-delay: 0.3s; }
.speaker-wave i:nth-child(7) { height: 22px; animation-delay: 0.42s; }

@keyframes wavePulse {
  0%, 100% { transform: scaleY(0.65); opacity: 0.75; }
  50% { transform: scaleY(1.1); opacity: 1; }
}

.caption-box {
  text-align: center;
  padding: 0.7rem 0.75rem;
  border-radius: 14px;
  background: rgba(8, 11, 24, 0.84);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(8px);
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  min-height: 4.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.32rem;
}
.caption-word {
  padding: 0.08rem 0.34rem;
  border-radius: 7px;
  transition: all 0.16s ease;
}
.caption-word.is-active {
  background: var(--cyan);
  color: #031018;
  transform: scale(1.07);
  box-shadow: 0 0 18px rgba(56, 232, 245, 0.55);
}
.Style-pop .caption-word.is-active {
  background: var(--amber);
  color: #140c00;
  transform: scale(1.13) translateY(-2px);
  box-shadow: 0 0 18px rgba(251, 191, 36, 0.55);
}
.Style-minimal .caption-box {
  background: rgba(15, 23, 42, 0.92);
  border-color: rgba(192, 132, 252, 0.4);
}
.Style-minimal .caption-word.is-active {
  background: transparent;
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 4px;
  box-shadow: none;
  transform: none;
}

.phone-controls {
  padding: 0.85rem;
  background: #0d1326;
  border-top: 1px solid var(--line);
}
.control-group-label {
  font-family: var(--mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}
.control-pills {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 0.65rem;
}
.control-pills:last-child { margin-bottom: 0; }
.demo-pill {
  flex: 1;
  padding: 0.38rem 0.5rem;
  border-radius: 9px;
  border: 1px solid var(--line);
  background: #131b34;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 600;
}
.demo-pill[aria-pressed="true"] {
  background: rgba(56, 232, 245, 0.16);
  border-color: var(--cyan);
  color: var(--fg);
}

/* Sections */
.section {
  padding: 4.5rem 0;
  border-bottom: 1px solid var(--line);
}
.section-alt { background: var(--bg-2); }
.section-head {
  max-width: 720px;
  margin-bottom: 2.5rem;
}
.section-head.center {
  margin-inline: auto;
  text-align: center;
}
.kicker {
  font-family: var(--mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--cyan);
  margin: 0 0 0.55rem;
}
h2 {
  font-size: clamp(1.75rem, 1.35rem + 1.5vw, 2.55rem);
  line-height: 1.13;
  letter-spacing: -0.03em;
  margin: 0 0 0.75rem;
}
.section-lede {
  color: var(--muted);
  margin: 0;
}

/* Grids & Cards */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.35rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.card:hover {
  border-color: rgba(56, 232, 245, 0.3);
  transform: translateY(-2px);
}
.card-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(56, 232, 245, 0.12);
  border: 1px solid rgba(56, 232, 245, 0.28);
  color: var(--cyan);
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.card h3 {
  font-size: 1.18rem;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
}
.card p {
  color: var(--muted);
  margin: 0;
  font-size: 0.96rem;
}
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1rem;
}
.tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  padding: 0.22rem 0.6rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  color: var(--muted);
}

/* Stepper */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.1rem;
}
.step-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.5rem;
}
.step-num {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.12em;
  margin-bottom: 0.65rem;
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 6px;
  background: rgba(56, 232, 245, 0.1);
}

/* Language showcase */
.lang-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 0.75rem;
}
.lang-pill {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
}
.lang-pill strong { font-size: 0.95rem; }
.lang-pill span {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--cyan);
}

/* Comparison Table */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.95rem;
}
th, td {
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--line);
}
th {
  font-family: var(--mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.02);
}
th.highlight-col, td.highlight-col {
  background: rgba(56, 232, 245, 0.06);
}
tr:last-child td { border-bottom: none; }
.yes { color: var(--emerald); font-weight: 700; }
.no { color: #f87171; }

/* FAQ */
.faq-list {
  max-width: 820px;
  margin-inline: auto;
  display: grid;
  gap: 0.85rem;
}
details.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 1.15rem 1.35rem;
}
details.faq-item[open] {
  border-color: rgba(56, 232, 245, 0.35);
}
details.faq-item summary {
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::after {
  content: "+";
  font-family: var(--mono);
  font-size: 1.25rem;
  color: var(--cyan);
}
details.faq-item[open] summary::after { content: "−"; }
details.faq-item p {
  margin: 0.85rem 0 0;
  color: var(--muted);
}

/* CTA Band */
.cta-band {
  background:
    radial-gradient(650px 320px at 15% 50%, var(--glow-cyan), transparent 65%),
    radial-gradient(650px 320px at 85% 50%, var(--glow-purple), transparent 65%),
    var(--surface);
  border: 1px solid var(--line-bright);
  border-radius: 26px;
  padding: 3rem 2.2rem;
  text-align: center;
}

/* Footer */
.site-footer {
  padding: 3.5rem 0 2.5rem;
  background: #04060d;
  color: var(--muted);
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--line);
}
.footer-col h4 {
  color: var(--fg);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: var(--mono);
  margin: 0 0 0.9rem;
}
.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.55rem;
}
.footer-col a:hover { color: var(--cyan); }
.footer-bottom {
  padding-top: 1.6rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.84rem;
}

@media (max-width: 960px) {
  .hero-grid { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 600px) {
  .hero { padding: 2.8rem 0 3rem; }
  .trust-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid-3, .grid-2, .steps-grid, .footer-grid { grid-template-columns: 1fr; }
  .header-ctas .btn-ghost { display: none; }
}