/* SOSU Roleplay – calm, warm, readable. */

:root {
  --bg: #f5f2ec;
  --surface: #fffdf9;
  --surface-muted: #efe9df;
  --text: #2b2a28;
  --muted: #6b665e;
  --border: #e2dbcf;
  --accent: #2f6f6a;
  --accent-hover: #275d59;
  --accent-text: #ffffff;
  --warn: #b7791f;
  --danger: #b23b3b;
  --glow: rgb(255 196 92 / 0.85);
  --radius: 18px;
  --shadow: 0 1px 2px rgb(0 0 0 / 0.05), 0 10px 30px rgb(60 45 20 / 0.07);

  color-scheme: light;
  font-family: system-ui, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1d1c1a;
    --surface: #262522;
    --surface-muted: #302e2a;
    --text: #ece8e1;
    --muted: #a8a196;
    --border: #3b3833;
    --accent: #5fb3ab;
    --accent-hover: #74c4bc;
    --accent-text: #10201f;
    --shadow: 0 1px 2px rgb(0 0 0 / 0.3), 0 10px 30px rgb(0 0 0 / 0.25);
    color-scheme: dark;
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0 auto;
  max-width: 1100px;
  padding: 24px 16px 48px;
  background: var(--bg);
  display: grid;
  gap: 16px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

/* ---------- Top bar ---------- */

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 650;
}

.timer {
  font-variant-numeric: tabular-nums;
  font-size: 1.6rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: color 0.3s, border-color 0.3s;
}

.timer-total {
  font-size: 1rem;
  color: var(--muted);
  font-weight: 500;
}

.timer[data-state="warn"] {
  color: var(--warn);
  border-color: var(--warn);
}

.timer[data-state="over"] {
  color: var(--danger);
  border-color: var(--danger);
}

/* ---------- Controls ---------- */

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.key-field {
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--muted);
  flex: 1 1 260px;
  max-width: 420px;
}

.key-field input {
  font: inherit;
  font-size: 1rem;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
}

.key-field input:disabled,
.engine-field select:disabled {
  opacity: 0.6;
}

.engine-field {
  display: grid;
  gap: 4px;
  font-size: 0.85rem;
  color: var(--muted);
}

.engine-field select {
  font: inherit;
  font-size: 1rem;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
}

.buttons {
  display: flex;
  gap: 8px;
}

.btn {
  font: inherit;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-muted);
  color: var(--text);
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:hover:not(:disabled) {
  background: var(--border);
}

.btn:disabled {
  opacity: 0.45;
  cursor: default;
}

.btn:focus-visible,
.key-field input:focus-visible,
.case-summary:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  min-width: 120px;
}

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-ghost {
  background: transparent;
  font-weight: 500;
  padding: 6px 14px;
}

/* ---------- Case card ---------- */

.case-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.case-summary {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  padding: 14px 18px;
  cursor: pointer;
  list-style: none;
  border-radius: var(--radius);
}

.case-summary::-webkit-details-marker {
  display: none;
}

.case-title {
  font-weight: 650;
}

.case-title::before {
  content: "▸ ";
  color: var(--muted);
}

.case-card[open] .case-title::before {
  content: "▾ ";
}

.case-hint {
  color: var(--muted);
  font-size: 0.9rem;
}

.case-body {
  display: grid;
  gap: 8px;
  padding: 0 18px 18px;
  max-width: 75ch;
}

.case-body h3 {
  margin-top: 8px;
  font-size: 0.95rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--muted);
}

.case-quote {
  margin: 0;
  padding: 8px 14px;
  border-left: 4px solid var(--accent);
  background: var(--surface-muted);
  border-radius: 0 10px 10px 0;
  font-style: italic;
}

.case-quote strong {
  font-style: normal;
}

.case-focus,
.case-room {
  margin: 0;
  padding-left: 20px;
}

.case-notice {
  margin-top: 8px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Stage & avatars ---------- */

.stage {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  padding: 8px 0;
}

.stage[data-count="1"] {
  grid-template-columns: minmax(240px, 420px);
  justify-content: center;
}

.avatar {
  --level: 0;
  display: grid;
  justify-items: center;
  gap: 12px;
}

.face {
  position: relative;
  width: min(100%, 380px);
  aspect-ratio: 1;
  border-radius: 28px;
  overflow: hidden;
  background: var(--persona-color, var(--surface-muted));
  box-shadow: var(--shadow);
  transition: box-shadow 90ms linear;
}

.avatar.is-speaking .face {
  box-shadow: 0 0 0 calc(3px + var(--level) * 14px) var(--glow), var(--shadow);
}

.face-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.face-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at 50% 35%, rgb(255 255 255 / 0.35), transparent 60%),
    var(--persona-color, var(--surface-muted));
}

.face-emoji {
  font-size: clamp(5rem, 14vw, 9rem);
  line-height: 1;
  filter: drop-shadow(0 6px 12px rgb(0 0 0 / 0.15));
}

.face-initial {
  position: absolute;
  bottom: 14px;
  right: 18px;
  font-size: 1.4rem;
  font-weight: 700;
  color: rgb(255 255 255 / 0.85);
}

.face.swap > * {
  animation: face-swap 420ms ease-out;
}

@keyframes face-swap {
  from {
    opacity: 0.35;
  }
  to {
    opacity: 1;
  }
}

.avatar-caption {
  text-align: center;
  display: grid;
  gap: 2px;
}

.avatar-name {
  font-size: 1.3rem;
}

.avatar-role {
  color: var(--muted);
}

.avatar-expression {
  font-size: 0.8rem;
  color: var(--muted);
  font-style: italic;
}

/* ---------- Status bar ---------- */

.statusbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.mic-meter {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 0 0 auto;
}

.mic-bar {
  position: relative;
  width: 90px;
  height: 8px;
  border-radius: 999px;
  background: var(--surface-muted);
  overflow: hidden;
}

.mic-level {
  --mic-level: 0;
  position: absolute;
  inset: 0;
  transform-origin: left;
  transform: scaleX(var(--mic-level));
  background: var(--accent);
  transition: transform 60ms linear;
}

.mic-meter.is-gated {
  opacity: 0.4;
}

.mic-meter.is-gated .mic-icon {
  filter: grayscale(1);
}

.status-text {
  font-weight: 500;
}

.status-text[data-kind="error"] {
  color: var(--danger);
}

/* ---------- Transcript ---------- */

.transcript-panel {
  display: grid;
  gap: 8px;
  justify-items: start;
}

.transcript {
  width: 100%;
  margin: 0;
  padding: 12px 16px;
  list-style: none;
  display: grid;
  gap: 10px;
  max-height: 360px;
  overflow-y: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.transcript-entry {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 10px;
}

.transcript-speaker {
  font-weight: 650;
}

.transcript-entry[data-speaker="student"] .transcript-speaker {
  color: var(--accent);
}

.transcript-time {
  color: var(--muted);
  font-size: 0.8rem;
  align-self: center;
}

.transcript-text {
  grid-column: 1 / -1;
}

@media (max-width: 600px) {
  .topbar {
    align-items: center;
  }

  .timer {
    font-size: 1.2rem;
  }

  .buttons {
    width: 100%;
  }

  .buttons .btn {
    flex: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .face.swap > * {
    animation: none;
  }

  .face,
  .mic-level {
    transition: none;
  }
}