:root {
  --bg: #14171A;
  --panel: #1B1F24;
  --panel-locked: #17191D;
  --border: #2A2F36;
  --text: #ECEAE5;
  --text-muted: #8B929B;
  --text-faint: #565D66;
  --accent: #E8A33D;
  --accent-dim: #B97F27;
  --accent-wash: rgba(232, 163, 61, 0.1);
  --success: #6FCF97;
  --danger: #E1604D;
  --danger-wash: rgba(225, 96, 77, 0.1);
  --radius: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

* { box-sizing: border-box; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

html { background: var(--bg); }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Offline banner ---------- */
.offline-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
  background: #101214;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  padding: 8px 12px;
}
.offline-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-wash);
}
.offline-banner.is-offline .offline-dot { background: var(--success); box-shadow: 0 0 0 3px rgba(111,207,151,0.15); }

/* ---------- Header ---------- */
.site-header {
  max-width: 720px;
  margin: 0 auto;
  padding: 56px 24px 32px;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 14px;
}
.site-header h1 {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 44px);
  font-weight: 700;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.lede {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 56ch;
  margin: 0;
}

/* ---------- Procedure / panels ---------- */
.procedure {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: opacity 0.2s ease, filter 0.2s ease;
}

.panel.is-locked {
  background: var(--panel-locked);
  opacity: 0.45;
  filter: grayscale(0.4);
  pointer-events: none;
}

.panel.is-active { opacity: 1; filter: none; pointer-events: auto; }
.panel.is-done { opacity: 0.75; filter: none; pointer-events: auto; }

.panel-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 12px;
}
.step-num {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.08em;
  border: 1px solid var(--accent-dim);
  border-radius: 4px;
  padding: 2px 7px;
  background: var(--accent-wash);
}
.panel-head h2 {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  margin: 0;
}
.panel-copy {
  color: var(--text-muted);
  font-size: 14.5px;
  margin: 0 0 18px;
}

/* ---------- Checklist ---------- */
.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.checklist li {
  position: relative;
  padding-left: 26px;
  color: var(--text);
  font-size: 14.5px;
}
.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--accent-dim);
  border-radius: 3px;
}

/* ---------- Strength choice ---------- */
.strength-choice {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.strength-card {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-align: left;
  cursor: pointer;
  color: var(--text);
  font-family: var(--font-body);
}
.strength-card:hover { border-color: var(--accent-dim); }
.strength-card[aria-checked="true"] {
  border-color: var(--accent);
  background: var(--accent-wash);
}
.strength-words { font-family: var(--font-display); font-size: 20px; font-weight: 700; }
.strength-bits { font-family: var(--font-mono); font-size: 12.5px; color: var(--accent); }
.strength-rolls { font-size: 13px; color: var(--text-muted); }

/* ---------- Roll stage / d20 gauge ---------- */
.roll-stage {
  display: flex;
  gap: 28px;
  align-items: center;
  flex-wrap: wrap;
}
.d20-gauge {
  position: relative;
  flex-shrink: 0;
  width: 180px;
  height: 180px;
}
.d20-facet {
  fill: var(--panel-locked);
  stroke: var(--border);
  stroke-width: 1.5;
  transition: fill 0.3s ease;
}
.d20-gauge.has-progress .d20-facet { fill: var(--accent-wash); stroke: var(--accent-dim); }
.d20-gauge.is-complete .d20-facet { fill: rgba(111,207,151,0.12); stroke: var(--success); }
.d20-line { stroke: var(--border); stroke-width: 1; }
.d20-readout {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
}
.d20-readout-slash { color: var(--text-faint); margin: 0 2px; font-weight: 400; }
.d20-gauge.pulse svg { animation: pulse 0.35s ease; }
@keyframes pulse { 0% { transform: scale(1); } 40% { transform: scale(1.04); } 100% { transform: scale(1); } }

.roll-input { flex: 1; min-width: 240px; }
.roll-prompt {
  font-size: 14.5px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.roll-prompt strong { color: var(--accent); font-family: var(--font-mono); }

.keypad {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 8px;
}
.keypad button {
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 500;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 10px 0;
  cursor: pointer;
}
.keypad button:hover { border-color: var(--accent); color: var(--accent); }
.keypad button:active { background: var(--accent-wash); }

.roll-actions { margin-top: 14px; }

.roll-history {
  margin-top: 20px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-faint);
  word-break: break-all;
  line-height: 1.8;
}
.roll-history span {
  display: inline-block;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 6px;
  margin: 0 4px 4px 0;
  color: var(--text-muted);
}

/* ---------- Buttons ---------- */
.btn-primary, .btn-ghost, .btn-danger {
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  border-radius: 7px;
  cursor: pointer;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent);
  color: #1A1300;
  padding: 12px 22px;
}
.btn-primary:hover { background: #F0AE4E; }
.btn-primary:disabled { background: var(--border); color: var(--text-faint); cursor: not-allowed; }
.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-muted);
  padding: 9px 16px;
}
.btn-ghost:hover { border-color: var(--accent-dim); color: var(--text); }
.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
  padding: 9px 16px;
  margin-top: 16px;
}
.btn-danger:hover { background: var(--danger-wash); }

/* ---------- Reveal / mnemonic ---------- */
.reveal-wrap { margin-top: 20px; }
.reveal-toolbar { margin-bottom: 14px; }

.mnemonic-grid {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  filter: blur(8px);
  user-select: none;
  transition: filter 0.2s ease;
}
.mnemonic-grid.is-visible { filter: none; user-select: text; }
.mnemonic-grid li {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 9px 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  display: flex;
  gap: 8px;
}
.mnemonic-grid li::marker { content: none; }
.mnemonic-grid .idx { color: var(--text-faint); min-width: 18px; }

.verify-details {
  margin: 16px 0;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
}
.verify-details summary {
  cursor: pointer;
  color: var(--text-muted);
  font-size: 13.5px;
}
.verify-body { margin-top: 12px; }
.verify-body p { color: var(--text-muted); font-size: 13px; margin: 0 0 10px; }
.hex-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.hex-row code {
  font-family: var(--font-mono);
  color: var(--accent);
  word-break: break-all;
  text-align: right;
}

.confirm-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: var(--text-muted);
}

/* ---------- Verify step ---------- */
.verify-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}
.verify-grid input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 9px 10px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 13.5px;
}
.verify-grid input:focus { outline: none; border-color: var(--accent); }
.verify-grid input.is-correct { border-color: var(--success); color: var(--success); }
.verify-grid input.is-wrong { border-color: var(--danger); color: var(--danger); }

.verify-result {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--text-muted);
}
.verify-result.ok { color: var(--success); }

/* ---------- Footer ---------- */
.site-footer {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 24px 60px;
  color: var(--text-faint);
  font-size: 12.5px;
}

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
  .strength-choice { grid-template-columns: 1fr; }
  .verify-grid { grid-template-columns: repeat(2, 1fr); }
  .mnemonic-grid { grid-template-columns: repeat(2, 1fr); }
  .roll-stage { flex-direction: column; align-items: stretch; }
  .d20-gauge { margin: 0 auto; }
}