:root {
  --bg: #0c0f14;
  --panel: #141a22;
  --border: #243041;
  --text: #e8eef7;
  --muted: #8b9bb0;
  --accent: #5b9dff;
  --good: #3dd68c;
  --warn: #f5a524;
  --danger: #f31260;
  --mono: "JetBrains Mono", "Fira Code", "Noto Sans Mono", ui-monospace, monospace;
  /* System UI first (fast paint); Inter/Noto load async when available */
  --sans: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans",
    "Inter", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  background:
    radial-gradient(1200px 600px at 10% -10%, #1a2740 0%, transparent 55%),
    radial-gradient(900px 500px at 100% 0%, #1a3028 0%, transparent 50%),
    var(--bg);
  color: var(--text);
  padding: 1.5rem clamp(1rem, 3vw, 2.5rem) 3rem;
}

header h1 {
  margin: 0 0 0.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  margin-left: 0.5rem;
  padding: 0.1rem 0.5rem;
  border-radius: 999px;
  background: #1e3a2f;
  color: var(--good);
  font-size: 0.75rem;
  font-weight: 600;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  align-items: center;
  margin: 1.25rem 0 1rem;
}

.mode {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.mode select {
  font: inherit;
  text-transform: none;
  letter-spacing: normal;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.45rem 0.6rem;
}

button.video { color: #c4b5fd; }

.freenet-panel {
  margin: 0 0 1rem;
  padding: 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(20, 26, 34, 0.9);
}

.freenet-panel h3 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
}

.freenet-row {
  display: grid;
  grid-template-columns: 1.2fr 1.4fr auto auto;
  gap: 0.6rem;
  align-items: end;
}

.freenet-row label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.freenet-row input {
  font: inherit;
  text-transform: none;
  letter-spacing: normal;
  border: 1px solid var(--border);
  background: #0e131a;
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem 0.7rem;
}

.hint {
  margin: 0.75rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
}

.hint code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: #c5d4ea;
}

.video-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.4rem;
  padding: 0.5rem 0.75rem 0;
}

.vid {
  width: 100%;
  aspect-ratio: 4/3;
  background: #0a0d12;
  border: 1px solid var(--border);
  border-radius: 10px;
  object-fit: cover;
}

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

button {
  font: inherit;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}

button:hover { border-color: var(--accent); }

button.primary {
  background: linear-gradient(135deg, #ff2d55, #ff6b35);
  border-color: transparent;
  font-weight: 600;
}

button.next { color: var(--warn); }
button.spin { color: var(--accent); }

.status {
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
}

.panes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}

.pane {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  min-height: 380px;
  overflow: hidden;
  box-shadow: 0 12px 40px rgba(0,0,0,0.35);
}

.pane > header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}

.pane h2 {
  margin: 0;
  font-size: 1rem;
  font-weight: 600;
}

.pid {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
}

.phase {
  font-family: var(--mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: #1c2430;
  color: var(--muted);
}

.phase.waiting { color: var(--warn); background: #2a2418; }
.phase.claiming { color: var(--accent); background: #172033; }
.phase.matched { color: var(--good); background: #14261c; }

.log {
  flex: 1;
  padding: 0.85rem 1rem;
  overflow-y: auto;
  font-size: 0.92rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.bubble {
  max-width: 90%;
  padding: 0.45rem 0.7rem;
  border-radius: 12px;
  background: #1c2533;
  border: 1px solid var(--border);
}

.bubble.mine {
  align-self: flex-end;
  background: #1a2a44;
  border-color: #2a4570;
}

.bubble .meta {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--muted);
  margin-bottom: 0.15rem;
}

.sys {
  font-family: var(--mono);
  font-size: 0.75rem;
  color: var(--muted);
  text-align: center;
  padding: 0.25rem;
}

.compose {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 0.4rem;
  padding: 0.75rem;
  border-top: 1px solid var(--border);
}

.compose input {
  font: inherit;
  border: 1px solid var(--border);
  background: #0e131a;
  color: var(--text);
  border-radius: 10px;
  padding: 0.5rem 0.7rem;
}

.compose input:focus {
  outline: none;
  border-color: var(--accent);
}

.explainer {
  margin-top: 2rem;
  max-width: 720px;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.5;
}

.explainer h3 { color: var(--text); margin-bottom: 0.5rem; }
.explainer code {
  font-family: var(--mono);
  font-size: 0.85em;
  color: #c5d4ea;
}

@media (max-width: 640px) {
  .compose {
    grid-template-columns: 1fr 1fr;
  }
  .compose input {
    grid-column: 1 / -1;
  }
}