@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0A0E1A;
  --surface: #111827;
  --accent: #F5A623;
  --accent-soft: rgba(245,166,35,.12);
  --text: #F0F0F0;
  --muted: #6B7280;
  --border: #1F2937;
}

html { height: 100%; }

body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ── Screens ── */

.screen {
  position: fixed;
  inset: 0;
  background: var(--bg);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 200ms ease;
  z-index: 1;
}

.screen.active {
  opacity: 1;
  pointer-events: all;
  z-index: 10;
}

.si {
  width: 100%;
  max-width: 420px;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 52px 24px max(48px, env(safe-area-inset-bottom, 48px));
  display: flex;
  flex-direction: column;
}

/* ── Common components ── */

.wordmark {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 27px;
  letter-spacing: -0.2px;
  color: var(--text);
}

.dot { color: var(--accent); }

.tagline {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-top: 5px;
}

.back {
  background: none;
  border: none;
  color: var(--muted);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0;
  margin-bottom: 32px;
  -webkit-tap-highlight-color: transparent;
  transition: color 120ms;
}

.back:hover { color: var(--text); }

.btn {
  display: block;
  width: 100%;
  padding: 15px 20px;
  border: none;
  border-radius: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  -webkit-tap-highlight-color: transparent;
  transition: filter 120ms, transform 100ms;
}

.btn + .btn { margin-top: 12px; }

.btn-cta { background: var(--accent); color: #0A0E1A; }
.btn-cta:hover:not(:disabled) { filter: brightness(1.08); }
.btn-cta:active:not(:disabled) { transform: scale(.98); }
.btn-cta:disabled { background: #1D2535; color: #374151; cursor: not-allowed; }

.btn-ghost { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: #374151; color: var(--text); }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.card::after {
  content: '';
  position: absolute;
  top: 0; left: 16px; right: 16px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,166,35,.18), transparent);
}

/* ── Screen 1: Topic ── */

#s-topic .si { justify-content: center; }

.topic-head { margin-bottom: 48px; }

.prompt-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.topic-text {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 21px;
  line-height: 1.48;
  color: var(--text);
  min-height: 88px;
  display: flex;
  align-items: center;
}

.topic-actions { margin-top: 20px; }

/* Summary state row — on Screen 4, below the motivational card */
.summary-state-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.summary-state-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .1em;
  text-transform: uppercase;
}

.summary-state-btns {
  display: flex;
  gap: 8px;
}

.state-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  cursor: pointer;
  letter-spacing: .02em;
  -webkit-tap-highlight-color: transparent;
  transition: background 150ms, border-color 150ms, color 150ms;
}

.state-btn:hover { border-color: #374151; color: var(--text); }

.state-btn.active {
  background: rgba(245,166,35,.1);
  border-color: rgba(245,166,35,.45);
  color: var(--accent);
}

/* Pool-empty message — shown in place of the card */
.pool-empty {
  display: none;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px 24px 28px;
  text-align: center;
}

.pool-empty-text {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 19px;
  line-height: 1.45;
  color: var(--text);
  margin-bottom: 20px;
}

/* ── Screen 2: Write ── */

.write-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .1em;
  text-transform: uppercase;
  margin-bottom: 7px;
}

.write-topic-echo {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 17px;
  line-height: 1.42;
  color: var(--text);
  margin-bottom: 20px;
}

textarea {
  display: block;
  width: 100%;
  min-height: 240px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text);
  resize: none;
  outline: none;
  -webkit-appearance: none;
  transition: border-color 150ms, box-shadow 150ms;
}

textarea::placeholder { color: #374151; }

textarea:focus {
  border-color: #2D3748;
  box-shadow: 0 0 0 3px rgba(245,166,35,.05);
}

.wc {
  font-size: 13px;
  color: var(--muted);
  text-align: right;
  margin: 10px 0 20px;
  transition: color 200ms;
}

.wc.go { color: var(--accent); }

/* ── Screen 3: Speak ── */

#s-speak .si { gap: 20px; }

.speak-hint { text-align: center; }

.speak-hint-lbl {
  font-size: 10px;
  color: rgba(107,114,128,.5);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.speak-hint-txt {
  font-family: 'DM Serif Display', Georgia, serif;
  font-size: 14px;
  line-height: 1.4;
  color: rgba(240,240,240,.22);
  max-width: 270px;
  margin: 0 auto;
}

.written-text-display {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px 18px;
  font-size: 14px;
  line-height: 1.65;
  color: rgba(240,240,240,.65);
  max-height: 130px;
  overflow-y: auto;
  white-space: pre-wrap;
  -webkit-overflow-scrolling: touch;
}

.pulse-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.pulse-orbit {
  width: 200px;
  height: 200px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.pulse-orbit::before {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  border: 1px solid rgba(245,166,35,.07);
  pointer-events: none;
}

#pulse {
  width: 148px;
  height: 148px;
  border-radius: 50%;
  position: relative;
}

#pulse::before {
  content: '';
  position: absolute;
  top: 18%; left: 20%;
  width: 28%; height: 18%;
  background: radial-gradient(ellipse, rgba(255,255,255,.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.timer-block { text-align: center; }

.timer {
  font-size: 54px;
  font-weight: 300;
  letter-spacing: .03em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  display: block;
  margin-bottom: 8px;
}

.bpm-label {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .12em;
  text-transform: uppercase;
}

/* ── Screen 4: Summary ── */

.summary-head { margin-bottom: 40px; }

.round-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--accent-soft);
  border: 1px solid rgba(245,166,35,.2);
  border-radius: 100px;
  padding: 5px 14px 5px 10px;
  font-size: 11px;
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.round-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 28px; }

.stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px 16px;
  text-align: center;
}

.stat-val {
  display: block;
  font-size: 32px;
  font-weight: 300;
  color: var(--text);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.stat-lbl {
  font-size: 11px;
  color: var(--muted);
  letter-spacing: .09em;
  text-transform: uppercase;
}

.motiv-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px 22px;
  margin-bottom: 36px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.motiv-card::after {
  content: '';
  position: absolute;
  top: 0; left: 16px; right: 16px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(245,166,35,.22), transparent);
}

.motiv-text {
  font-family: 'DM Serif Display', Georgia, serif;
  font-style: italic;
  font-size: 19px;
  line-height: 1.5;
  color: var(--text);
}