:root {
  --tts-bg: #08080a;
  --tts-panel: #121217;
  --tts-raised: #19191e;
  --tts-text: #f8f6fb;
  --tts-muted: #aaa5b2;
  --tts-line: rgba(255, 255, 255, .12);
  --tts-lime: #8dff18;
  --tts-lime-soft: #c9ff3f;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--tts-text); background: var(--tts-bg); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; }
a { color: inherit; }
button, textarea { font: inherit; }
.page-container { width: min(1600px, calc(100% - 48px)); margin-inline: auto; }
.tts-main { overflow: hidden; padding-top: 68px; }

.tts-hero {
  display: grid;
  grid-template-columns: minmax(280px, .74fr) minmax(540px, 1.26fr);
  align-items: center;
  gap: clamp(36px, 5vw, 88px);
  min-height: calc(100svh - 68px);
  padding-block: 34px;
}
.tts-hero-copy { max-width: 600px; }
.tts-eyebrow { margin: 0 0 16px; color: var(--tts-lime); font-size: 14px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.tts-hero h1, .tts-section-heading h2, .tts-result h2, .tts-final h2, .tts-studio-heading h2 { margin: 0; letter-spacing: -.035em; font-weight: 500; }
.tts-hero h1 { max-width: 640px; font-size: clamp(46px, min(5.15vw, 7.2vh), 72px); line-height: 1.06; }
.tts-hero-copy > p:not(.tts-eyebrow) { max-width: 560px; margin: 22px 0 26px; color: var(--tts-muted); font-size: 18px; line-height: 1.55; }
.tts-hero-links { display: flex; flex-wrap: wrap; gap: 12px 24px; }
.tts-hero-links a { color: var(--tts-lime); font-size: 15px; font-weight: 700; text-decoration: none; }
.tts-hero-links a::after { content: ' ↗'; }

.tts-studio-shell { min-width: 0; padding: 24px; border: 1px solid var(--tts-line); border-radius: 28px; background: linear-gradient(145deg, rgba(141,255,24,.08), transparent 26%), var(--tts-panel); box-shadow: 0 24px 54px rgba(0,0,0,.28); }
.tts-studio-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin: 0 4px 18px; }
.tts-studio-heading h2 { font-size: clamp(26px, 2.2vw, 34px); line-height: 1.15; }
.tts-studio-heading p { max-width: 290px; margin: 0; color: var(--tts-muted); font-size: 13px; line-height: 1.45; text-align: right; }
.tts-studio { display: grid; gap: 18px; }
.tts-form-section { min-width: 0; margin: 0; padding: 0; border: 0; }
.tts-label { display: block; margin-bottom: 9px; color: var(--tts-text); font-size: 14px; font-weight: 700; }
.tts-studio textarea { width: 100%; min-height: 104px; resize: vertical; border: 1px solid var(--tts-line); border-radius: 16px; padding: 14px 16px; color: var(--tts-text); background: var(--tts-raised); line-height: 1.5; outline: none; }
.tts-studio textarea:focus { border-color: rgba(141,255,24,.72); box-shadow: 0 0 0 3px rgba(141,255,24,.12); }
.tts-studio textarea::placeholder { color: #77727e; }
.tts-field-meta { display: flex; justify-content: space-between; gap: 16px; margin-top: 7px; color: var(--tts-muted); font-size: 12px; }

.tts-voice-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; max-height: 178px; overflow-y: auto; padding-right: 4px; scrollbar-color: rgba(141,255,24,.6) transparent; }
.tts-voice-card { position: relative; display: block; min-height: 78px; cursor: pointer; }
.tts-voice-card input { position: absolute; opacity: 0; pointer-events: none; }
.tts-voice-card span { display: grid; min-height: 100%; align-content: center; gap: 5px; border: 1px solid var(--tts-line); border-radius: 14px; padding: 12px; background: var(--tts-raised); transition: transform .18s ease, border-color .18s ease, background .18s ease; }
.tts-voice-card strong { font-size: 15px; font-weight: 600; letter-spacing: -.02em; }
.tts-voice-card small { overflow: hidden; color: var(--tts-muted); font-size: 12px; line-height: 1.35; text-overflow: ellipsis; white-space: nowrap; }
.tts-voice-card:hover span { transform: translateY(-2px); border-color: rgba(141,255,24,.38); }
.tts-voice-card input:focus-visible + span { outline: 3px solid rgba(141,255,24,.42); outline-offset: 2px; }
.tts-voice-card input:checked + span { border-color: var(--tts-lime); background: linear-gradient(135deg, rgba(141,255,24,.16), rgba(255,255,255,.025)); }
.tts-load-more { margin-top: 10px; border: 1px solid var(--tts-line); border-radius: 999px; padding: 8px 14px; color: var(--tts-text); background: transparent; font-size: 13px; font-weight: 700; cursor: pointer; }
.tts-load-more:hover, .tts-load-more:focus-visible { border-color: var(--tts-lime); color: var(--tts-lime); }
.tts-load-more:disabled { opacity: .55; cursor: wait; }
.tts-loading { margin: 0; color: var(--tts-muted); }

.tts-speed-options { display: flex; flex-wrap: wrap; gap: 8px; }
.tts-speed-options label { position: relative; cursor: pointer; }
.tts-speed-options input { position: absolute; opacity: 0; pointer-events: none; }
.tts-speed-options span { display: inline-flex; min-width: 88px; justify-content: center; border: 1px solid var(--tts-line); border-radius: 999px; padding: 9px 14px; color: var(--tts-muted); font-size: 13px; font-weight: 700; transition: border-color .18s ease, color .18s ease, background .18s ease; }
.tts-speed-options input:focus-visible + span { outline: 3px solid rgba(141,255,24,.42); outline-offset: 2px; }
.tts-speed-options input:checked + span { border-color: var(--tts-lime); color: #14180e; background: var(--tts-lime); }
.tts-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; padding-top: 2px; }
.tts-generate, .tts-download, .tts-final a { display: inline-flex; min-height: 52px; min-width: 214px; align-items: center; justify-content: center; border: 0; border-radius: 999px; padding: 0 22px; color: #11160a; background: linear-gradient(135deg, var(--tts-lime), var(--tts-lime-soft)); font-size: 16px; font-weight: 700; text-decoration: none; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease; }
.tts-generate:hover:not(:disabled), .tts-download:hover, .tts-final a:hover { transform: translateY(-3px); box-shadow: 0 16px 34px rgba(141,255,24,.24); }
.tts-generate:disabled { cursor: wait; opacity: .55; }
.tts-status { flex: 1 1 220px; margin: 0; color: var(--tts-muted); font-size: 13px; line-height: 1.45; }
.tts-status.is-error { color: #ffaca4; }
.tts-status a { color: var(--tts-lime); font-weight: 700; }
.tts-result { display: grid; gap: 14px; margin-top: 18px; border: 1px solid rgba(141,255,24,.44); border-radius: 18px; padding: 18px; background: radial-gradient(circle at top right, rgba(141,255,24,.13), transparent 42%), var(--tts-raised); }
.tts-result[hidden] { display: none; }
.tts-result h2 { font-size: 22px; line-height: 1.18; }
.tts-result p { margin: 6px 0 0; color: var(--tts-muted); font-size: 13px; line-height: 1.45; }
.tts-result audio { width: 100%; accent-color: var(--tts-lime); }
.tts-download { width: fit-content; min-height: 44px; min-width: 170px; font-size: 14px; }

.tts-info, .tts-faq { padding-block: 86px; }
.tts-section-heading { max-width: 700px; margin-bottom: 34px; }
.tts-section-heading h2 { font-size: clamp(36px, 4vw, 44px); line-height: 1.18; letter-spacing: -.025em; }
.tts-section-heading p { margin: 12px 0 0; color: var(--tts-muted); font-size: 17px; line-height: 1.55; }
.tts-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.tts-steps article { min-height: 210px; padding: 28px; border: 1px solid var(--tts-line); border-radius: 24px; background: var(--tts-panel); }
.tts-steps h3 { margin: 0 0 14px; font-size: 24px; font-weight: 500; letter-spacing: -.025em; }
.tts-steps p { margin: 0; color: var(--tts-muted); line-height: 1.55; }
.tts-faq-list { display: grid; gap: 12px; max-width: 880px; }
.tts-faq details { border: 1px solid var(--tts-line); border-radius: 18px; padding: 20px; background: var(--tts-raised); }
.tts-faq details[open] { border-color: rgba(141,255,24,.4); background: linear-gradient(120deg, rgba(141,255,24,.08), var(--tts-raised) 45%); }
.tts-faq summary { cursor: pointer; font-size: 17px; font-weight: 700; }
.tts-faq p { max-width: 700px; margin: 14px 0 0; color: var(--tts-muted); line-height: 1.55; }
.tts-faq p a { color: var(--tts-lime); }
.tts-final { margin-top: 36px; background: linear-gradient(135deg, var(--tts-lime), #48dc63); color: #101608; }
.tts-final > div { display: flex; min-height: 315px; align-items: center; justify-content: center; flex-direction: column; gap: 28px; text-align: center; }
.tts-final h2 { max-width: 800px; font-size: clamp(44px, 5vw, 58px); line-height: 1.08; }
.tts-final a { background: #101608; color: #f8f6fb; }

@media (max-width: 1100px) {
  .tts-hero { grid-template-columns: minmax(260px, .65fr) minmax(500px, 1.35fr); gap: 36px; }
  .tts-hero h1 { font-size: clamp(44px, 5vw, 58px); }
}
@media (max-width: 900px) {
  .tts-hero { grid-template-columns: 1fr; align-items: start; gap: 28px; min-height: auto; padding-block: 48px 56px; }
  .tts-hero-copy { max-width: 720px; }
  .tts-hero h1 { max-width: 680px; }
  .tts-voice-grid { max-height: 190px; }
}
@media (max-width: 560px) {
  .page-container { width: calc(100% - 28px); }
  .tts-main { padding-top: 58px; }
  .tts-hero { padding-block: 36px 56px; }
  .tts-eyebrow { margin-bottom: 12px; font-size: 12px; }
  .tts-hero h1 { font-size: 42px; }
  .tts-hero-copy > p:not(.tts-eyebrow) { margin: 16px 0 22px; font-size: 17px; }
  .tts-studio-shell { padding: 18px; border-radius: 22px; }
  .tts-studio-heading { display: block; margin: 0 2px 16px; }
  .tts-studio-heading p { margin-top: 6px; text-align: left; }
  .tts-studio { gap: 16px; }
  .tts-studio textarea { min-height: 112px; }
  .tts-voice-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); max-height: 204px; }
  .tts-voice-card { min-height: 76px; }
  .tts-voice-card span { padding: 10px; }
  .tts-speed-options { gap: 7px; }
  .tts-speed-options span { min-width: 0; padding: 9px 13px; }
  .tts-actions { align-items: stretch; gap: 12px; }
  .tts-generate, .tts-download { width: 100%; min-width: 0; }
  .tts-info, .tts-faq { padding-block: 56px; }
  .tts-steps { grid-template-columns: 1fr; }
  .tts-final > div { min-height: 270px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tts-voice-card span, .tts-generate, .tts-download, .tts-final a { transition: none; }
  .tts-voice-card:hover span, .tts-generate:hover:not(:disabled), .tts-download:hover, .tts-final a:hover { transform: none; }
}