:root {
  --bg: #07111f;
  --panel: rgba(10, 20, 34, 0.72);
  --line: rgba(122, 190, 255, 0.18);
  --text: #e6f0ff;
  --muted: #87a1c1;
  --accent: #2fd3ff;
  --accent-strong: #8ef7ff;
  --shadow: rgba(2, 8, 20, 0.42);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "Avenir Next", "IBM Plex Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 15% 15%, rgba(47, 211, 255, 0.16), transparent 22%),
    radial-gradient(circle at 85% 10%, rgba(123, 125, 255, 0.18), transparent 20%),
    linear-gradient(145deg, #040914, var(--bg) 45%, #081a30);
}

.page {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 18px 64px;
  display: grid;
  gap: 20px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 20px 60px var(--shadow);
  backdrop-filter: blur(18px);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 4rem);
  letter-spacing: 0.02em;
}

.eyebrow,
.label {
  margin: 0 0 8px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
}

.controls {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

button,
.upload-btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  background: var(--accent);
  color: #04111b;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  line-height: 1;
  box-shadow: 0 12px 30px rgba(47, 211, 255, 0.22);
  white-space: nowrap;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.primary-action {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.secondary-action {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  box-shadow: none;
  border: 1px solid rgba(142, 247, 255, 0.12);
}

.danger-action {
  background: rgba(255, 108, 108, 0.12);
  color: #ffdede;
  box-shadow: none;
  border: 1px solid rgba(255, 145, 145, 0.22);
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.target-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: end;
}

.control-block {
  display: grid;
  gap: 6px;
}

.control-block select {
  min-width: 260px;
  padding: 10px 12px;
  border: 1px solid rgba(142, 247, 255, 0.2);
  border-radius: 12px;
  background: rgba(3, 10, 18, 0.65);
  color: var(--text);
}

.upload-btn {
  position: relative;
  border: 1px solid rgba(142, 247, 255, 0.12);
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.upload-btn input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.upload-btn[aria-disabled="true"] {
  opacity: 0.55;
  cursor: not-allowed;
}

.upload-btn[aria-disabled="true"] input {
  pointer-events: none;
}

.target-action {
  height: 44px;
  min-width: 150px;
  padding: 0 16px;
}

.error-text {
  margin: 10px 0 0;
  color: #ff9f9f;
  font-size: 0.92rem;
}

.target-preview {
  margin-top: 12px;
}

.target-preview audio {
  width: min(560px, 100%);
}

.muted-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.saved-audio-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.saved-audio-list {
  display: grid;
  gap: 10px;
}

.saved-audio-item {
  border: 1px solid rgba(142, 247, 255, 0.1);
  border-radius: 14px;
  padding: 12px;
  background: rgba(255, 255, 255, 0.03);
}

.saved-audio-item-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.saved-audio-id {
  margin: 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.compact-action {
  min-height: 34px;
  padding: 0 12px;
  font-size: 0.82rem;
}

.saved-audio-players {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.saved-audio-players audio {
  width: 100%;
}

.stat {
  min-height: 96px;
}

.latency-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.latency-focus {
  margin-bottom: 10px;
}

.latency-detail {
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.latency-item {
  padding: 12px 14px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(142, 247, 255, 0.08);
  display: grid;
  gap: 6px;
}

.latency-item.primary {
  background: linear-gradient(135deg, rgba(47, 211, 255, 0.14), rgba(123, 125, 255, 0.16));
  border-color: rgba(47, 211, 255, 0.24);
}

.latency-item.highlight {
  padding: 16px 18px;
}

.latency-item.highlight .latency-value {
  font-size: 1.25rem;
}

.latency-item.overhead {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(142, 247, 255, 0.2);
}

.latency-note {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 0.78rem;
}

.latency-name {
  color: var(--muted);
  font-size: 0.78rem;
}

.latency-value {
  font-size: 1.1rem;
}

.mono {
  font-family: "SFMono-Regular", monospace;
}

@media (max-width: 900px) {
  .stats {
    grid-template-columns: 1fr;
  }

  .latency-strip {
    grid-template-columns: 1fr;
  }

  .latency-detail {
    grid-template-columns: 1fr;
  }

  .saved-audio-players {
    grid-template-columns: 1fr;
  }
}