:root {
  --bg-0: #0b0518;
  --bg-1: #11082b;
  --panel: rgba(255, 255, 255, 0.04);
  --panel-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-soft: rgba(255, 255, 255, 0.05);
  --text: #f1edff;
  --muted: #a39bc8;
  --primary: #8b5cf6;
  --primary-2: #ec4899;
  --accent: #22d3ee;
  --success: #10b981;
  --danger: #f43f5e;

  --grad-primary: linear-gradient(135deg, #8b5cf6 0%, #ec4899 100%);
  --grad-accent: linear-gradient(135deg, #22d3ee 0%, #8b5cf6 100%);
  --grad-hero: linear-gradient(135deg, rgba(139,92,246,0.4) 0%, rgba(236,72,153,0.3) 50%, rgba(34,211,238,0.25) 100%);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  color: var(--text);
  min-height: 100vh;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(236, 72, 153, 0.18) 0%, transparent 60%),
    radial-gradient(900px 600px at 10% 10%, rgba(139, 92, 246, 0.22) 0%, transparent 55%),
    radial-gradient(700px 700px at 50% 110%, rgba(34, 211, 238, 0.12) 0%, transparent 60%),
    var(--bg-0);
}

/* ----- Landing hero ----- */
.hero { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.hero .card { max-width: 540px; text-align: center; backdrop-filter: blur(20px); }
.hero h1 {
  font-size: 42px; margin: 0 0 14px;
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lead { color: var(--muted); font-size: 17px; line-height: 1.6; }
.features { list-style: none; padding: 0; margin: 24px 0; text-align: left; }
.features li {
  padding: 10px 0; border-bottom: 1px solid var(--border-soft);
  display: flex; align-items: center; gap: 10px;
}
.features li::before {
  content: "✦"; color: transparent;
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 14px;
}
.footnote { color: var(--muted); font-size: 13px; margin-top: 18px; }

/* ----- Topbar ----- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
  background: rgba(11, 5, 24, 0.6);
  position: sticky; top: 0; z-index: 10;
}
.brand {
  font-weight: 700; letter-spacing: 0.3px; font-size: 17px;
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.user { display: flex; align-items: center; gap: 12px; }
.user img {
  width: 34px; height: 34px; border-radius: 50%;
  border: 2px solid transparent;
  background-image: linear-gradient(var(--bg-0), var(--bg-0)), var(--grad-primary);
  background-origin: border-box; background-clip: padding-box, border-box;
}

/* ----- Layout ----- */
.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  padding: 28px;
  max-width: 1200px;
  margin: 0 auto;
}
.span-2 { grid-column: span 2; }
@media (max-width: 880px) {
  .grid { grid-template-columns: 1fr; padding: 18px; }
  .span-2 { grid-column: auto; }
}

/* ----- Card ----- */
.card {
  background: var(--panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow:
    0 1px 0 rgba(255,255,255,0.04) inset,
    0 24px 40px -24px rgba(0,0,0,0.6);
  transition: border-color 0.2s ease;
}
.card:hover { border-color: rgba(255,255,255,0.14); }
.card h2 {
  margin: 0 0 14px; font-size: 20px; font-weight: 600;
  letter-spacing: -0.2px;
}
.card h3 {
  margin: 20px 0 10px; font-size: 12px;
  color: var(--muted); text-transform: uppercase; letter-spacing: 1px;
}

/* hero card (talk-to-agent) */
.card-hero {
  position: relative; overflow: hidden;
  background:
    var(--grad-hero),
    var(--panel-strong);
  border: 1px solid rgba(255,255,255,0.12);
}
.card-hero::before {
  content: "";
  position: absolute; inset: -50%;
  background:
    radial-gradient(closest-side, rgba(139,92,246,0.5), transparent 70%),
    radial-gradient(closest-side, rgba(236,72,153,0.4), transparent 70%);
  background-position: 20% 20%, 80% 80%;
  background-size: 40% 40%, 40% 40%;
  background-repeat: no-repeat;
  filter: blur(60px);
  opacity: 0.6;
  pointer-events: none;
  z-index: 0;
}
.card-hero > * { position: relative; z-index: 1; }
.card-hero h2 { font-size: 26px; }

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 10px;
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--border);
  cursor: pointer; font-size: 14px; font-weight: 500;
  transition: all 0.18s ease;
}
.btn:hover:not(:disabled) {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.18);
  transform: translateY(-1px);
}
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-primary {
  background: var(--grad-primary);
  border: 0;
  color: white;
  box-shadow: 0 8px 24px -8px rgba(236,72,153,0.6);
}
.btn-primary:hover:not(:disabled) {
  filter: brightness(1.08);
  box-shadow: 0 12px 32px -8px rgba(236,72,153,0.7);
}
.btn-ghost { background: transparent; }

.btn-danger {
  background: linear-gradient(135deg, #f43f5e 0%, #b91c1c 100%);
  border: 0;
  color: white;
  box-shadow: 0 8px 24px -8px rgba(244, 63, 94, 0.6);
}
.btn-danger:hover:not(:disabled) {
  filter: brightness(1.1);
  box-shadow: 0 12px 32px -8px rgba(244, 63, 94, 0.8);
}
.btn-danger:disabled {
  background: rgba(244, 63, 94, 0.2);
  border: 1px solid rgba(244, 63, 94, 0.3);
  color: rgba(255, 255, 255, 0.4);
  box-shadow: none;
}

.g-icon {
  width: 16px; height: 16px;
  background: white; border-radius: 2px; display: inline-block;
  -webkit-mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M21.35 11.1H12v3.2h5.35c-.5 2.4-2.55 3.7-5.35 3.7-3.2 0-5.8-2.6-5.8-5.8s2.6-5.8 5.8-5.8c1.5 0 2.8.55 3.85 1.45l2.4-2.4C16.6 3.6 14.45 2.7 12 2.7 6.85 2.7 2.7 6.85 2.7 12s4.15 9.3 9.3 9.3c5.35 0 8.9-3.75 8.9-9 0-.55-.05-1.1-.15-1.6Z'/></svg>") center/contain no-repeat;
          mask: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'><path d='M21.35 11.1H12v3.2h5.35c-.5 2.4-2.55 3.7-5.35 3.7-3.2 0-5.8-2.6-5.8-5.8s2.6-5.8 5.8-5.8c1.5 0 2.8.55 3.85 1.45l2.4-2.4C16.6 3.6 14.45 2.7 12 2.7 6.85 2.7 2.7 6.85 2.7 12s4.15 9.3 9.3 9.3c5.35 0 8.9-3.75 8.9-9 0-.55-.05-1.1-.15-1.6Z'/></svg>") center/contain no-repeat;
}

/* ----- Forms ----- */
.row { display: flex; gap: 10px; flex-wrap: wrap; align-items: center; }
input, input[type="file"] {
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px; font-size: 14px;
  min-width: 180px;
  transition: border-color 0.18s ease;
}
input:focus { outline: none; border-color: var(--primary); }
input[type="file"]::file-selector-button {
  background: rgba(255,255,255,0.08);
  color: var(--text);
  border: 0; padding: 6px 12px; border-radius: 8px;
  margin-right: 12px; cursor: pointer;
}
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: 12px; margin-top: 12px; line-height: 1.5; }

/* ----- Usage meter ----- */
.meter {
  height: 10px; background: rgba(255,255,255,0.06);
  border-radius: 999px; overflow: hidden;
  border: 1px solid var(--border-soft);
}
.meter-fill {
  height: 100%; width: 0%;
  background: var(--grad-primary);
  transition: width 0.4s ease;
  box-shadow: 0 0 16px rgba(236,72,153,0.5);
}
.usage-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin: 14px 0 6px;
}
.usage-stats > div {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-soft);
  padding: 14px;
  border-radius: 12px;
}
.usage-stats strong { display: block; font-size: 20px; font-weight: 600; }
.usage-stats span { color: var(--muted); font-size: 12px; letter-spacing: 0.3px; }

/* ----- Sessions list ----- */
.sessions { list-style: none; padding: 0; margin: 0; max-height: 220px; overflow: auto; }
.sessions li {
  display: flex; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px solid var(--border-soft);
  color: var(--muted); font-size: 13px;
}

/* ----- KB list ----- */
.kb-list { list-style: none; padding: 0; margin: 0; max-height: 280px; overflow: auto; }
.kb-row {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-soft);
  border-radius: 10px;
  margin-bottom: 8px;
  transition: all 0.18s ease;
}
.kb-row:hover { border-color: rgba(255,255,255,0.12); }
.kb-row.selected { border-color: rgba(139,92,246,0.5); background: rgba(139,92,246,0.06); }
.kb-row input[type="checkbox"] {
  appearance: none;
  width: 18px; height: 18px;
  border-radius: 5px;
  border: 1.5px solid var(--border);
  background: rgba(255,255,255,0.04);
  cursor: pointer;
  display: grid; place-items: center;
  min-width: auto;
  padding: 0;
  margin: 0;
}
.kb-row input[type="checkbox"]:checked {
  background: var(--grad-primary);
  border-color: transparent;
}
.kb-row input[type="checkbox"]:checked::after {
  content: "✓"; color: white; font-size: 12px; font-weight: bold;
}
.kb-row .kb-name { flex: 1; font-size: 14px; }
.kb-row .kb-meta { color: var(--muted); font-size: 12px; }
.kb-empty { color: var(--muted); font-size: 13px; padding: 8px 0; }

/* ----- Voice list ----- */
.voice-list { list-style: none; padding: 0; margin: 0; }
.voice-row {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 14px;
  margin-bottom: 12px;
  transition: all 0.18s ease;
}
.voice-row:hover { border-color: rgba(255,255,255,0.14); }
.voice-row.active {
  border-color: rgba(139,92,246,0.5);
  background: rgba(139,92,246,0.06);
  box-shadow: 0 0 0 1px rgba(139,92,246,0.3) inset;
}
.voice-head { display: flex; align-items: center; gap: 12px; }
.voice-head strong { font-size: 15px; }
.badge-active {
  background: var(--grad-primary);
  color: white;
  padding: 3px 10px; border-radius: 999px;
  font-size: 10px; letter-spacing: 0.5px; text-transform: uppercase; font-weight: 600;
}
.voice-empty { color: var(--muted); font-size: 13px; padding: 12px 0; }
.preview-text { flex: 1; min-width: 200px; }
.voice-audio { width: 100%; margin-top: 12px; }

/* ----- Call timer ----- */
.timer {
  font-size: 56px; font-variant-numeric: tabular-nums;
  text-align: center; margin-top: 18px;
  font-weight: 200; letter-spacing: -1px;
  color: var(--muted);
}
.timer.live {
  background: var(--grad-primary);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* utility */
audio::-webkit-media-controls-panel {
  background: rgba(255,255,255,0.06);
}