/* ───────────────────────────────────────────────
   DESIGN TOKENS
─────────────────────────────────────────────── */
:root {
  --bg: #0d1117;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.15);
  --text: #e2e8f0;
  --text-muted: #64748b;
  --text-sub: #94a3b8;
  --accent: #e8c96a;
  --accent-dim: rgba(232, 201, 106, 0.15);
  --accent-border: rgba(232, 201, 106, 0.3);
  --green: #4ade80;
  --green-dim: rgba(74, 222, 128, 0.12);
  --amber: #fb923c;
  --amber-dim: rgba(251, 146, 60, 0.12);
  --red: #f87171;
  --red-dim: rgba(248, 113, 113, 0.12);
  --blue: #60a5fa;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  --font: system-ui, -apple-system, 'Inter', sans-serif;
}

/* ───────────────────────────────────────────────
   RESET & BASE
─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ───────────────────────────────────────────────
   SCREEN SYSTEM
─────────────────────────────────────────────── */
.screen {
  position: fixed;
  inset: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.3s ease, transform 0.3s ease;
}
.screen.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}
.screen.active {
  opacity: 1;
  pointer-events: all;
  transform: none;
}

/* ───────────────────────────────────────────────
   BRAND
─────────────────────────────────────────────── */
.brand-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin-bottom: 40px;
}
.brand-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  margin-bottom: 8px;
}
.brand-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: uppercase;
}
.brand-title-sm {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.35em;
  color: var(--accent);
  text-transform: uppercase;
  opacity: 0.8;
}
.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ───────────────────────────────────────────────
   BUTTONS
─────────────────────────────────────────────── */
.btn-primary {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--accent);
  color: #0d1117;
  border: none;
  padding: 14px 32px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s;
  letter-spacing: 0.02em;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }

.btn-icon { font-size: 12px; }

.btn-danger {
  background: transparent;
  color: var(--red);
  border: 1px solid var(--red);
  padding: 10px 24px;
  border-radius: 100px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
}
.btn-danger:hover { background: var(--red-dim); }

.btn-ghost {
  background: transparent;
  color: var(--text-sub);
  border: 1px solid var(--border-strong);
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.btn-ghost:hover { color: var(--text); border-color: var(--text-sub); }

.btn-ghost-sm {
  background: transparent;
  color: var(--text-muted);
  border: none;
  font-size: 13px;
  cursor: pointer;
  padding: 6px 0;
  transition: color 0.2s;
}
.btn-ghost-sm:hover { color: var(--text); }

/* ───────────────────────────────────────────────
   SCREEN 1: INTRO
─────────────────────────────────────────────── */
.intro-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 480px;
  width: 100%;
  padding: 60px 24px 40px;
  gap: 20px;
}

.witness-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 100%;
}

.witness-avatar {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #1e2d3d;
  border: 2px solid var(--accent-border);
  color: var(--accent);
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.05em;
}

.witness-info { flex: 1; }
.witness-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.witness-role { font-size: 13px; color: var(--text-sub); }
.witness-org { font-size: 12px; color: var(--text-muted); }

.briefing-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  width: 100%;
}
.briefing-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 8px;
}
.briefing-text {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
}

.model-pill {
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 6px 16px;
  border-radius: 100px;
  text-transform: uppercase;
}

.mic-note {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: -8px;
}

/* ───────────────────────────────────────────────
   SCREEN 2: LIVE INTERVIEW
─────────────────────────────────────────────── */
#screen-interview {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  padding: 0;
}

.interview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: var(--bg);
  z-index: 10;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: background 0.3s;
}
.status-dot.live { background: var(--green); animation: pulse-dot 2s infinite; }
.status-dot.connecting { background: var(--accent); animation: pulse-dot 1s infinite; }
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}
.status-text { font-size: 12px; color: var(--text-sub); font-weight: 500; }

.interview-stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  min-height: 0;
}

.witness-visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.witness-avatar-lg {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: #1e2d3d;
  border: 3px solid var(--accent-border);
  color: var(--accent);
  font-size: 36px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.05em;
  box-shadow: 0 0 0 0 var(--accent-dim);
  transition: box-shadow 0.3s;
}
.witness-avatar-lg.speaking {
  box-shadow: 0 0 0 12px var(--accent-dim), 0 0 0 24px rgba(232, 201, 106, 0.04);
  border-color: rgba(232, 201, 106, 0.6);
}

.witness-name-sm {
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}

.waveform {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 32px;
}
.waveform-bar {
  width: 4px;
  height: 6px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0.3;
  transition: height 0.1s ease, opacity 0.1s ease;
}
.waveform.active .waveform-bar {
  opacity: 0.9;
  animation: wave-bounce 0.6s ease-in-out infinite alternate;
}
.waveform.active .waveform-bar:nth-child(1) { animation-delay: 0s; }
.waveform.active .waveform-bar:nth-child(2) { animation-delay: 0.1s; }
.waveform.active .waveform-bar:nth-child(3) { animation-delay: 0.2s; }
.waveform.active .waveform-bar:nth-child(4) { animation-delay: 0.1s; }
.waveform.active .waveform-bar:nth-child(5) { animation-delay: 0s; }
@keyframes wave-bounce {
  from { height: 6px; }
  to { height: 28px; }
}

.speaking-label {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  min-height: 18px;
}

/* Transcript panel — slides up from bottom */
.transcript-panel {
  background: rgba(13, 17, 23, 0.95);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(12px);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
  flex-shrink: 0;
}
.transcript-panel.open {
  max-height: 45vh;
  overflow-y: auto;
}
.transcript-handle {
  width: 36px;
  height: 4px;
  border-radius: 2px;
  background: var(--border-strong);
  margin: 12px auto 0;
  cursor: pointer;
}
.transcript-inner {
  padding: 12px 24px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.transcript-empty {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  padding: 16px 0;
  font-style: italic;
}

.turn {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.turn-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.turn.turn-student .turn-label { color: var(--blue); }
.turn.turn-witness .turn-label { color: var(--accent); }
.turn-text {
  font-size: 14px;
  color: var(--text);
  line-height: 1.55;
  background: var(--bg-card);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  border-left: 2px solid transparent;
}
.turn.turn-student .turn-text { border-left-color: var(--blue); }
.turn.turn-witness .turn-text { border-left-color: var(--accent); }

.interview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: var(--bg);
  flex-shrink: 0;
  z-index: 10;
}
.footer-center { display: flex; align-items: center; gap: 12px; }
.timer {
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  color: var(--text-sub);
  font-weight: 600;
  letter-spacing: 0.05em;
}

/* ───────────────────────────────────────────────
   SCREEN 3: PROCESSING
─────────────────────────────────────────────── */
.processing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 80px 24px;
  max-width: 400px;
  width: 100%;
  margin: auto;
}

.spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-strong);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.processing-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  text-align: center;
}
.processing-sub {
  font-size: 14px;
  color: var(--text-muted);
  text-align: center;
}
.processing-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  margin-top: 8px;
}
.step {
  font-size: 13px;
  color: var(--text-muted);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  transition: all 0.3s;
}
.step.active {
  color: var(--accent);
  border-color: var(--accent-border);
  background: var(--accent-dim);
}
.step.done {
  color: var(--green);
  border-color: rgba(74, 222, 128, 0.2);
  background: var(--green-dim);
}

/* ───────────────────────────────────────────────
   SCREEN 4: CRITIQUE
─────────────────────────────────────────────── */
.critique-container {
  max-width: 680px;
  width: 100%;
  margin: 0 auto;
  padding: 0 24px 60px;
}

.critique-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 24px;
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
}

/* Score hero */
.score-hero {
  display: flex;
  align-items: center;
  gap: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 32px;
}

.score-circle {
  position: relative;
  width: 120px;
  height: 120px;
  flex-shrink: 0;
}
.score-ring {
  width: 120px;
  height: 120px;
  transform: rotate(-90deg);
}
.score-ring-bg {
  fill: none;
  stroke: var(--border-strong);
  stroke-width: 8;
}
.score-ring-fill {
  fill: none;
  stroke: var(--accent);
  stroke-width: 8;
  stroke-linecap: round;
  stroke-dasharray: 314;
  stroke-dashoffset: 314;
  transition: stroke-dashoffset 1.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.score-number {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.score-meta { flex: 1; }
.score-band {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  margin-bottom: 12px;
}
.score-summary {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.65;
}

/* Sections */
.critique-section {
  margin-bottom: 32px;
}
.section-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}

/* Phase bars */
.phase-bars { display: flex; flex-direction: column; gap: 16px; }
.phase-bar-item {}
.phase-bar-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}
.phase-bar-label { font-size: 14px; font-weight: 600; color: var(--text); }
.phase-bar-score { font-size: 13px; color: var(--text-sub); font-variant-numeric: tabular-nums; }
.phase-bar-track {
  height: 6px;
  background: var(--border-strong);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}
.phase-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  width: 0%;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.phase-bar-notes { font-size: 13px; color: var(--text-sub); line-height: 1.6; }

/* Questioning pills */
.questioning-row { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.q-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 8px 16px;
  font-size: 13px;
}
.q-pill-count { font-size: 20px; font-weight: 800; font-variant-numeric: tabular-nums; }
.q-pill-label { font-size: 12px; color: var(--text-muted); }
.q-pill.teds { border-color: rgba(74, 222, 128, 0.25); background: var(--green-dim); }
.q-pill.teds .q-pill-count { color: var(--green); }
.q-pill.leading { border-color: rgba(248, 113, 113, 0.25); background: var(--red-dim); }
.q-pill.leading .q-pill-count { color: var(--red); }
.q-pill.closed { border-color: rgba(148, 163, 184, 0.2); }
.q-pill.closed .q-pill-count { color: var(--text-sub); }
.questioning-notes { font-size: 13px; color: var(--text-sub); line-height: 1.6; }

/* Facts */
.facts-progress-bar-wrap {
  height: 8px;
  background: var(--border-strong);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}
.facts-progress-bar {
  height: 100%;
  background: var(--green);
  border-radius: 4px;
  width: 0%;
  transition: width 1s cubic-bezier(0.4, 0, 0.2, 1);
}
.facts-count { font-size: 13px; color: var(--text-sub); margin-bottom: 16px; }
.facts-list { display: flex; flex-direction: column; gap: 8px; }
.fact-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}
.fact-item.elicited { background: var(--green-dim); border-color: rgba(74, 222, 128, 0.2); }
.fact-item.missed { background: transparent; opacity: 0.55; }
.fact-icon { font-size: 14px; flex-shrink: 0; margin-top: 1px; }
.fact-text { flex: 1; color: var(--text); line-height: 1.5; }
.fact-method { font-size: 11px; color: var(--text-muted); margin-top: 2px; font-style: italic; }

/* Strengths */
.strengths-list { display: flex; flex-direction: column; gap: 10px; list-style: none; }
.strength-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: var(--green-dim);
  border: 1px solid rgba(74, 222, 128, 0.15);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.55;
}
.strength-icon { color: var(--green); flex-shrink: 0; font-size: 16px; }

/* Improvements */
.improvements-list { display: flex; flex-direction: column; gap: 16px; }
.improvement-card {
  background: var(--amber-dim);
  border: 1px solid rgba(251, 146, 60, 0.2);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.improvement-issue {
  font-size: 14px;
  font-weight: 600;
  color: var(--amber);
  margin-bottom: 8px;
}
.improvement-suggestion {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 10px;
}
.improvement-example {
  background: var(--bg-card);
  border-left: 2px solid var(--accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 8px 12px;
  font-size: 13px;
  color: var(--text-sub);
  font-style: italic;
}
.improvement-example::before {
  content: 'Better: ';
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

/* Full transcript */
.transcript-toggle-btn { width: 100%; justify-content: center; }
.full-transcript {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.full-transcript.hidden { display: none; }

.critique-footer {
  display: flex;
  justify-content: center;
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
}

/* ───────────────────────────────────────────────
   UTILITIES
─────────────────────────────────────────────── */
.hidden { display: none !important; }

@media (max-width: 600px) {
  .score-hero { flex-direction: column; text-align: center; }
  .score-circle { margin: 0 auto; }
  .intro-container { padding: 40px 16px 32px; }
  .critique-container { padding: 0 16px 40px; }
}