:root {
  color-scheme: dark;
  --bg: #080a11;
  --surface: rgba(18, 21, 33, 0.86);
  --surface-strong: #151925;
  --line: rgba(181, 191, 225, 0.13);
  --line-bright: rgba(126, 93, 255, 0.46);
  --text: #f4f6ff;
  --muted: #a7aec4;
  --quiet: #747d98;
  --purple: #865dff;
  --blue: #486dff;
  --cyan: #4eeaff;
  --success: #6af0bd;
  --danger: #ff7590;
  --radius: 1.5rem;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; min-height: 100vh; color: var(--text); background: radial-gradient(circle at 50% -10%, #161938 0, var(--bg) 38rem); overflow-x: hidden; }
button, input, select { font: inherit; }
button, select, input[type="range"] { cursor: pointer; }
button, a, select, .drop-zone { -webkit-tap-highlight-color: transparent; }
button:focus-visible, a:focus-visible, select:focus-visible, .drop-zone:focus-visible, input:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
.hidden { display: none !important; }

.ambient { position: fixed; z-index: -1; border-radius: 999px; filter: blur(100px); opacity: .13; pointer-events: none; }
.ambient-one { width: 28rem; height: 28rem; top: 20%; left: -12rem; background: var(--purple); }
.ambient-two { width: 25rem; height: 25rem; right: -12rem; bottom: 5%; background: var(--blue); }

.topbar { width: min(1180px, calc(100% - 2.5rem)); height: 5.5rem; margin: auto; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.brand { display: inline-flex; align-items: center; gap: .72rem; color: var(--text); text-decoration: none; font-weight: 850; letter-spacing: .12em; }
.brand-mark { height: 1.55rem; display: flex; gap: 3px; align-items: center; }
.brand-mark i { width: 3px; border-radius: 5px; background: linear-gradient(180deg, var(--cyan), var(--purple)); box-shadow: 0 0 12px rgba(78, 234, 255, .25); }
.brand-mark i:nth-child(1), .brand-mark i:nth-child(5) { height: 38%; }
.brand-mark i:nth-child(2), .brand-mark i:nth-child(4) { height: 68%; }
.brand-mark i:nth-child(3) { height: 100%; }
.top-actions { display: flex; align-items: center; gap: 1rem; }
.server-status { display: inline-flex; align-items: center; gap: .55rem; color: var(--muted); font-size: .82rem; }
.server-status i, .status-pill i { width: .48rem; height: .48rem; border-radius: 50%; background: var(--quiet); }
.server-status.online i { background: var(--success); box-shadow: 0 0 12px rgba(106, 240, 189, .7); }
.server-status.offline i { background: var(--danger); }
.icon-button { width: 2.35rem; height: 2.35rem; color: var(--muted); background: rgba(255,255,255,.03); border: 1px solid var(--line); border-radius: 50%; }

.shell { width: min(1060px, calc(100% - 2.5rem)); margin: 0 auto; padding: 4.25rem 0 3rem; }
.intro { display: grid; grid-template-columns: 1.25fr .75fr; align-items: end; gap: 4rem; margin-bottom: 2.7rem; }
.eyebrow, .section-kicker { margin: 0 0 .8rem; color: var(--cyan); font-size: .72rem; font-weight: 800; letter-spacing: .2em; }
h1 { margin: 0; font-size: clamp(2.85rem, 7vw, 5.8rem); line-height: .91; letter-spacing: -.065em; font-weight: 820; }
h1 span { color: transparent; background: linear-gradient(100deg, #e6deff, var(--purple) 55%, var(--cyan)); background-clip: text; -webkit-background-clip: text; }
.intro-copy { max-width: 27rem; margin: 0 0 .4rem; color: var(--muted); font-size: 1rem; line-height: 1.7; }

.workspace { position: relative; padding: clamp(1.2rem, 3.5vw, 2.3rem); border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(145deg, rgba(25,29,45,.94), rgba(12,15,24,.96)); box-shadow: 0 28px 90px rgba(0,0,0,.36), inset 0 1px 0 rgba(255,255,255,.035); overflow: hidden; }
.workspace::before { content: ""; position: absolute; inset: 0 15% auto; height: 1px; background: linear-gradient(90deg, transparent, var(--purple), var(--cyan), transparent); opacity: .7; }
.workspace-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.7rem; }
.workspace h2 { margin: 0; font-size: clamp(1.35rem, 2.5vw, 1.8rem); letter-spacing: -.025em; }
.workspace-head p:last-child { margin: .42rem 0 0; color: var(--muted); font-size: .9rem; }
.status-pill { display: inline-flex; align-items: center; gap: .55rem; flex: 0 0 auto; padding: .55rem .75rem; color: var(--muted); font-size: .78rem; border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.025); }
.status-pill.processing i { background: var(--cyan); box-shadow: 0 0 12px rgba(78,234,255,.65); animation: pulse 1.3s ease infinite; }
.status-pill.complete { color: #b6f7df; border-color: rgba(106,240,189,.24); }
.status-pill.complete i { background: var(--success); }
.status-pill.error i { background: var(--danger); }

.drop-zone { min-height: 11rem; display: flex; align-items: center; justify-content: center; gap: 1.25rem; padding: 2rem; border: 1px dashed rgba(151,162,205,.3); border-radius: 1.1rem; background: rgba(6,8,14,.35); transition: border-color .2s, background .2s, transform .2s; }
.drop-zone:hover, .drop-zone.dragover { border-color: var(--line-bright); background: rgba(93,66,202,.1); transform: translateY(-1px); }
.drop-icon { width: 3.2rem; height: 3.2rem; display: grid; place-items: center; border-radius: 1rem; background: linear-gradient(145deg, rgba(134,93,255,.22), rgba(78,234,255,.09)); border: 1px solid rgba(134,93,255,.3); }
.drop-icon svg, .primary-button svg, .download svg, .volume-control svg { width: 1.35rem; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.drop-zone strong, .drop-zone span { display: block; }
.drop-zone strong { color: var(--text); font-size: 1rem; }
.drop-zone span { margin-top: .35rem; color: var(--muted); font-size: .88rem; }

.selected-file { display: flex; align-items: center; gap: .9rem; padding: 1rem; border: 1px solid var(--line); border-radius: 1rem; background: rgba(8,10,17,.5); }
.file-badge { width: 2.65rem; height: 2.65rem; display: grid; place-items: center; color: var(--cyan); border-radius: .8rem; background: rgba(78,234,255,.08); }
.file-copy { min-width: 0; flex: 1; }
.file-copy strong, .file-copy span { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-copy strong { font-size: .94rem; }
.file-copy span { margin-top: .2rem; color: var(--muted); font-size: .78rem; }
.text-button { padding: .45rem .2rem; color: #b8a7ff; background: transparent; border: 0; font-weight: 750; }

.setup-row { display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: end; margin-top: 1rem; }
.field > span { display: block; margin-bottom: .5rem; color: var(--muted); font-size: .8rem; font-weight: 650; }
select { width: 100%; height: 3.2rem; padding: 0 2.8rem 0 1rem; color: var(--text); border: 1px solid var(--line); border-radius: .85rem; background: var(--surface-strong); }
.primary-button { height: 3.2rem; display: inline-flex; align-items: center; justify-content: center; gap: .75rem; padding: 0 1.45rem; color: #fff; font-weight: 800; border: 0; border-radius: .85rem; background: linear-gradient(110deg, var(--purple), var(--blue)); box-shadow: 0 10px 32px rgba(84,67,230,.26); transition: transform .2s, filter .2s, opacity .2s; }
.primary-button:not(:disabled):hover { transform: translateY(-1px); filter: brightness(1.1); }
.primary-button:disabled { cursor: not-allowed; opacity: .42; box-shadow: none; }

.processing-panel { margin-top: 1.15rem; padding: 1.15rem; border: 1px solid var(--line); border-radius: 1rem; background: rgba(8,10,17,.45); }
.processing-copy { display: flex; justify-content: space-between; gap: 1rem; color: var(--muted); font-size: .86rem; }
.processing-copy strong { color: var(--text); }
.progress-track { height: .45rem; margin: .8rem 0; overflow: hidden; border-radius: 999px; background: rgba(255,255,255,.07); }
.progress-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--purple), var(--cyan)); box-shadow: 0 0 15px rgba(78,234,255,.35); transition: width .5s ease; }
.processing-panel p { margin: 0; color: var(--quiet); font-size: .75rem; }

.result-panel { margin-top: .35rem; }
.compare-tabs { width: fit-content; display: grid; grid-template-columns: repeat(2, 1fr); gap: .25rem; margin: 0 auto 1.35rem; padding: .25rem; border: 1px solid var(--line); border-radius: .85rem; background: rgba(7,9,16,.58); }
.compare-tab { min-width: 9.5rem; padding: .65rem .9rem; color: var(--muted); border: 0; border-radius: .65rem; background: transparent; font-weight: 750; }
.compare-tab span { margin-right: .45rem; color: var(--quiet); font-size: .65rem; letter-spacing: .12em; }
.compare-tab.active { color: var(--text); background: linear-gradient(110deg, rgba(134,93,255,.28), rgba(72,109,255,.18)); box-shadow: inset 0 0 0 1px rgba(134,93,255,.28); }
.compare-tab.active span { color: var(--cyan); }
.wave-wrap { position: relative; height: 12rem; border-radius: 1rem; background: radial-gradient(circle at 50% 50%, rgba(92,68,205,.14), transparent 58%), rgba(6,8,14,.52); overflow: hidden; }
#waveform { width: 100%; height: 100%; display: block; }
.seek { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; }
.player-row { min-height: 4.4rem; display: grid; grid-template-columns: auto auto 1fr; gap: 1rem; align-items: center; border-bottom: 1px solid var(--line); }
.play-button { width: 2.75rem; height: 2.75rem; display: grid; place-items: center; color: #fff; border: 0; border-radius: 50%; background: linear-gradient(135deg, var(--purple), var(--blue)); box-shadow: 0 7px 24px rgba(89,68,226,.3); }
.play-button svg { width: 1.1rem; height: 1.1rem; fill: currentColor; }
.play-button .pause-icon { display: none; }
.play-button.playing .play-icon { display: none; }
.play-button.playing .pause-icon { display: block; }
.time { display: flex; gap: .38rem; color: var(--muted); font-variant-numeric: tabular-nums; font-size: .8rem; }
.time strong { color: var(--text); }
.volume-control { justify-self: end; display: flex; align-items: center; gap: .7rem; color: var(--muted); }
.volume-control svg { width: 1.15rem; }
.volume-control input { width: 6rem; accent-color: var(--purple); }
.result-footer { display: grid; grid-template-columns: 1fr auto; gap: 1.5rem; align-items: end; padding-top: 1.4rem; }
.metric-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; }
.metric-grid div { padding: .8rem; border: 1px solid var(--line); border-radius: .8rem; background: rgba(255,255,255,.018); }
.metric-grid span, .metric-grid strong { display: block; }
.metric-grid span { margin-bottom: .28rem; color: var(--quiet); font-size: .68rem; }
.metric-grid strong { color: var(--text); font-size: .82rem; }
.download-actions { display: flex; gap: .6rem; }
.download { min-height: 2.9rem; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: 0 1rem; border-radius: .75rem; text-decoration: none; font-size: .82rem; font-weight: 800; }
.download.secondary { color: var(--text); border: 1px solid var(--line); background: rgba(255,255,255,.03); }
.download.primary { color: #fff; background: linear-gradient(110deg, var(--purple), var(--blue)); }
.download svg { width: 1rem; }

.error-panel { margin-top: 1rem; padding: 1rem 1.1rem; border: 1px solid rgba(255,117,144,.26); border-radius: 1rem; background: rgba(255,117,144,.07); }
.error-panel strong, .error-panel span { display: block; }
.error-panel strong { color: #ffd6df; }
.error-panel span { margin: .35rem 0; color: var(--muted); font-size: .85rem; }
.trust-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin-top: 1.25rem; border: 1px solid var(--line); border-radius: 1rem; background: var(--line); overflow: hidden; }
.trust-row div { padding: 1rem 1.15rem; background: rgba(11,14,23,.94); }
.trust-row strong, .trust-row span { display: block; }
.trust-row strong { color: var(--text); font-size: .8rem; }
.trust-row span { margin-top: .25rem; color: var(--quiet); font-size: .7rem; }

dialog { width: min(32rem, calc(100% - 2rem)); padding: 2rem; color: var(--text); border: 1px solid var(--line-bright); border-radius: 1.25rem; background: #151925; box-shadow: 0 30px 100px #000; }
dialog::backdrop { background: rgba(3,4,8,.74); backdrop-filter: blur(8px); }
dialog h2 { margin: 0 0 1rem; font-size: 1.55rem; }
dialog p:last-child { margin: 0; color: var(--muted); line-height: 1.65; }
.dialog-close { position: absolute; top: .8rem; right: .9rem; color: var(--muted); border: 0; background: transparent; font-size: 1.7rem; }

@keyframes pulse { 50% { opacity: .35; } }
@media (max-width: 760px) {
  .topbar, .shell { width: min(100% - 1.25rem, 1060px); }
  .topbar { height: 4.5rem; }
  .server-status span { display: none; }
  .shell { padding-top: 2.6rem; }
  .intro { grid-template-columns: 1fr; gap: 1.4rem; }
  h1 { font-size: clamp(2.7rem, 15vw, 4.4rem); }
  .intro-copy { font-size: .95rem; }
  .workspace-head { align-items: center; }
  .status-pill span { display: none; }
  .drop-zone { min-height: 9.5rem; padding: 1.35rem; text-align: center; flex-direction: column; }
  .setup-row, .result-footer { grid-template-columns: 1fr; }
  .primary-button { width: 100%; }
  .wave-wrap { height: 9rem; }
  .metric-grid { order: 2; }
  .download-actions { order: 1; }
  .download { flex: 1; }
  .trust-row { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 460px) {
  .workspace { padding: 1rem; border-radius: 1.2rem; }
  .workspace-head p:last-child { font-size: .76rem; }
  .compare-tabs { width: 100%; }
  .compare-tab { min-width: 0; padding: .65rem .45rem; font-size: .76rem; }
  .compare-tab span { display: block; margin: 0 0 .15rem; }
  .player-row { grid-template-columns: auto 1fr; }
  .volume-control { display: none; }
  .metric-grid { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; animation: none !important; transition: none !important; } }