/* Theme: Dark mode with vibrant accents (Protagoras) */
* { box-sizing: border-box; }
:root {
  --bg: #020617;          /* near-black slate */
  --text: #e5e7eb;        /* light gray */
  --muted: #94a3b8;       /* slate-400 */
  --accent: #38bdf8;      /* sky-400 */
  --accent-strong: #0ea5e9; /* sky-500 */
  --accent-alt: #a855f7;  /* purple-500 */
  --card: #020617;
  --card-elevated: #020617;
  --border: #1e293b;      /* slate-800 */
  --border-soft: #111827;
  --error: #fecaca;
  --error-bg: #7f1d1d;
  --user-bg: #0f172a;     /* dark slate for user lines */
}
html, body {
  height: 100%;
  background: radial-gradient(circle at top left, #0f172a 0, #020617 45%, #000000 100%);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, Apple Color Emoji, Segoe UI Emoji;
  line-height: 1.5;
}
.container {
  min-height: 100%;
  max-width: 1000px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
h1 {
  text-align: center;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-alt));
  -webkit-background-clip: text;
  color: transparent;
  letter-spacing: .4px;
}
.section-title { font-size: 1.1rem; margin: 0 0 .75rem; color: var(--muted); }
.subsection-title { font-size: 1rem; margin: .25rem 0 .35rem; color: var(--text); }
.card {
  background: radial-gradient(circle at top left, #0b1120 0, #020617 55%, #000000 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  box-shadow: 0 18px 45px rgba(15,23,42,0.85);
}
.label { display: block; font-weight: 600; margin-bottom: .4rem; }
.mt { margin-top: .9rem; }
.mt2 { margin-top: 1.25rem; }
.select, .textarea {
  width: 100%;
  border: 1px solid var(--border-soft);
  border-radius: 12px;
  padding: .75rem .9rem;
  background: #020617;
  color: var(--text);
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease, background .15s ease;
}
.select:focus, .textarea:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 2px rgba(56, 189, 248, .35);
  background: #020617;
}
.textarea { resize: vertical; min-height: 110px; }
.row { display: flex; align-items: center; }
.gap { gap: .6rem; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: .75rem; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  background: linear-gradient(135deg, var(--accent-strong), var(--accent-alt));
  color: white;
  border: none;
  border-radius: 999px;
  padding: .7rem 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform .05s ease, filter .2s ease, box-shadow .2s ease;
  box-shadow: 0 10px 25px rgba(56, 189, 248, 0.35);
}
.button:hover {
  filter: brightness(1.05);
  box-shadow: 0 14px 32px rgba(56, 189, 248, 0.5);
}
.button:active { transform: translateY(1px) scale(0.99); }
.button:disabled { filter: grayscale(.6); cursor: not-allowed; opacity: .85; box-shadow: none; }

.button-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent-strong);
  box-shadow: none;
}
.button-outline:hover {
  background: rgba(15,23,42,0.8);
}
.button-ghost {
  background: transparent;
  color: var(--muted);
  border: 1.5px dashed var(--border);
  box-shadow: none;
}
.button-ghost:hover {
  background: rgba(15,23,42,0.7);
}

.loading {
  display: flex;
  align-items: center;
  gap: .6rem;
  margin: .75rem 0 0;
  color: var(--muted);
  font-size: .95rem;
}
.spinner {
  width: 18px; height: 18px;
  border-radius: 999px;
  border: 3px solid rgba(148,163,184,0.6);
  border-top-color: var(--accent-strong);
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.response-wrap { margin-top: 1rem; }
.response-wrap h2 { font-size: 1.05rem; margin: 0 0 .5rem; color: var(--muted); }
.response {
  white-space: pre-wrap;
  border: 1px solid var(--border);
  background: radial-gradient(circle at top left, #020617 0, #020617 50%, #000000 100%);
  border-radius: 12px;
  padding: 1rem;
  min-height: 100px;
}
.transcript { max-height: 1200px; overflow: auto; white-space: normal; }
.transcript.tall { min-height: 400px; } /* showpiece height */

.error {
  margin-top: .75rem;
  padding: .75rem;
  border: 1px solid var(--error);
  background: var(--error-bg);
  color: var(--error);
  border-radius: 12px;
}
.muted { color: var(--muted); }
.small { font-size: .95rem; }
.tiny { font-size: .85rem; }
.footer {
  text-align: center;
  margin-top: 1rem;
  color: var(--muted);
  font-size: .95rem;
}

/* Transcript message styling */
.msg {
  padding: .35rem .45rem;
  border-radius: 8px;
  margin: .15rem 0;
  background: rgba(15,23,42,0.8);
}
.msg .speaker {
  font-weight: 700;
  margin-right: .35rem;
  color: var(--accent);
}
.msg.user {
  background: var(--user-bg);
  border-left: 3px solid var(--accent-strong);
}

/* Participant rows */
.rows { display: grid; grid-template-columns: 1fr; gap: .5rem; }
.participant-row {
  display: grid;
  grid-template-columns: auto auto 1fr 1fr 1fr auto;
  gap: .5rem;
  background: rgba(15,23,42,0.9);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .6rem;
}
.participant-row .select {
  width: 100%;
}
.participant-row .remove {
  border: 1px solid var(--border);
  background: #020617;
  color: var(--muted);
  border-radius: 10px;
  padding: .55rem .8rem;
  cursor: pointer;
}

@media (max-width: 760px) {
  .card { padding: 1rem; }
  .participant-row { grid-template-columns: auto auto 1fr 1fr 1fr auto; }
  .participant-row .select { width: 100%; }
}
 .msg.user{background:rgba(56,189,248,0.08);border-left:3px solid var(--accent-strong);} .msg.moderator{background:rgba(168,85,247,0.10);border-left:3px solid var(--accent-alt);} 

.participant-row .enabled{width:16px;height:16px;}
.llm-wrap{display:flex;align-items:center;gap:.4rem;}
.llm-icon{width:18px;height:18px;border-radius:6px;border:1px solid var(--border);background:#0b1220;}


/* v1.3.6: light blue for user questions + moderator instructions in transcript */
.msg.user, .msg.user .speaker,
.msg.moderator, .msg.moderator .speaker {
  color: #7dd3fc !important;
}

/* Debate Metrics */
#metrics { white-space: normal; }
.metrics-card {
  margin-top: .75rem;
  padding: .75rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
}
.metrics-title { font-weight: 800; color: var(--muted); margin-bottom: .35rem; }
.metrics-table { width: 100%; border-collapse: collapse; margin-top: .5rem; font-size: .9rem; }
.metrics-table th, .metrics-table td {
  border: 1px solid var(--border);
  padding: .35rem .45rem;
  text-align: center;
}
.metrics-table th { background: var(--card); text-align: left; }

.metrics-table th, .metrics-table td { color: #000; }
.metrics-title { color: #000; }