:root {
  --cream: #f6efe3;
  --cream-dark: #ece3d0;
  --paper: #fbf6ec;
  --ink: #1a1613;
  --ink-soft: #3d342b;
  --ink-muted: #6b5d4e;
  --ink-faint: #a89883;
  --rule: #d9c9ae;
  --tint: #c94024;
  --tint-soft: #e86a4e;
  --heat-very-hot: #c94024;
  --heat-hot: #e07b3e;
  --heat-warm: #c99a3a;
  --heat-tepid: #8a9168;
  --heat-cold: #6b7f85;
  --shadow-soft: rgba(26, 22, 19, 0.06);
  --shadow-overlay: rgba(26, 22, 19, 0.02);
}

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

html, body {
  background: var(--cream);
  color: var(--ink);
  font-family: 'Inter', -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 30%, var(--shadow-overlay) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, var(--shadow-overlay) 0%, transparent 50%);
  z-index: 1;
}

.app {
  max-width: 560px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 2;
}

/* ---- masthead ---- */
.masthead {
  padding: 32px 0 24px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.masthead-title {
  font-family: 'Fraunces', serif;
  font-size: 42px;
  font-weight: 900;
  font-optical-sizing: auto;
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.03em;
  line-height: 1;
  cursor: pointer;
}

.masthead-title::first-letter { color: var(--tint); }

.masthead-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

/* ---- screens ---- */
.screen { display: none; animation: fadeIn 0.4s ease; }
.screen.active { display: block; }
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---- home ---- */
.home-intro {
  padding: 28px 0 20px;
  border-bottom: 1px dashed var(--rule);
}

.home-intro p {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  line-height: 1.5;
  color: var(--ink-soft);
  font-weight: 400;
  font-style: italic;
}

.home-intro .kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--tint);
  display: block;
  margin-bottom: 10px;
  font-style: normal;
}

.challenges { padding: 24px 0 32px; }

/* pending games */
.pending-section { padding: 0 0 24px; }

.pending-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--tint);
  padding: 12px 0; border-top: 1px dashed var(--rule);
}

.pending-entry {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 0; border-bottom: 1px solid var(--rule);
  cursor: pointer; background: none; border-left: none;
  border-right: none; border-top: none; width: 100%;
  text-align: left; transition: transform 0.2s ease;
  color: var(--ink);
}

.pending-entry:hover { transform: translateX(4px); }
.pending-icon { font-size: 18px; }

.pending-info { flex: 1; }

.pending-title {
  font-family: 'Fraunces', serif;
  font-size: 16px; font-weight: 500;
}

.pending-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--ink-muted);
  letter-spacing: 0.05em; margin-top: 2px;
}

.pending-status {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-muted);
  padding: 3px 8px; border: 1px solid var(--rule);
  border-radius: 2px;
}

.challenge {
  display: block;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  cursor: pointer;
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  transition: transform 0.2s ease;
}

.challenge:hover { transform: translateX(4px); }

.challenge.unavailable {
  opacity: 0.4;
  cursor: default;
  pointer-events: none;
}

.challenge-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 4px;
}

.challenge-icon { font-size: 22px; line-height: 1; }

.challenge-name {
  font-family: 'Fraunces', serif;
  font-size: 24px;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.challenge-status {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 2px;
}

.challenge-status.done {
  color: var(--tint);
  border-color: var(--tint);
}

.challenge-status.progress {
  color: var(--ink-soft);
  border-color: var(--ink-soft);
}

.challenge-meta {
  font-size: 13px;
  color: var(--ink-muted);
  padding-left: 34px;
}

.challenge-hardcore {
  background: var(--cream-dark);
  padding: 20px;
  margin-top: 12px;
  border-left: 3px solid var(--tint);
  border-bottom: none;
  border-radius: 0 2px 2px 0;
}

.challenge-hardcore:hover { transform: translateX(2px); }

.home-footer {
  padding: 24px 0 100px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

.nav-link {
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 1px;
  cursor: pointer;
  background: none;
  border-left: none; border-right: none; border-top: none;
  font-family: inherit; font-size: inherit;
  text-transform: inherit; letter-spacing: inherit;
}

.nav-link:hover {
  color: var(--tint);
  border-bottom-color: var(--tint);
}

/* welcome-back banner */
.welcome-back-banner {
  background: var(--paper);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--tint);
  padding: 16px 18px;
  margin: 20px 0 0;
  border-radius: 2px;
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-family: 'Fraunces', serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.welcome-back-banner strong { font-weight: 700; color: var(--ink); }

.welcome-back-close {
  background: none; border: none; cursor: pointer;
  color: var(--ink-muted); font-size: 18px; line-height: 1;
  padding: 0 0 0 8px; font-family: serif;
}

.welcome-back-close:hover { color: var(--tint); }

/* ---- game screen ---- */
.game-header {
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--rule);
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.back-btn {
  background: none; border: 1px solid var(--rule); cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-muted);
  padding: 6px 10px; border-radius: 2px;
}

.back-btn:hover { color: var(--tint); border-color: var(--tint); }

.game-category {
  font-family: 'Fraunces', serif;
  font-size: 22px; font-weight: 500; margin-left: 4px;
}

.game-stats {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--ink-muted); text-align: right;
}

.game-stats strong { color: var(--ink); font-weight: 700; }

/* input area */

.guess-input-wrap {
  display: flex;
  align-items: center;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 8px;
}

.guess-input {
  width: 100%; background: none; border: none; outline: none;
  font-family: 'Fraunces', serif;
  font-size: 28px; color: var(--ink); padding: 8px 0; font-weight: 400;
}

.guess-input::placeholder { color: var(--ink-faint); font-style: italic; transition: opacity 0.3s ease; }
.guess-input::-webkit-search-decoration,
.guess-input::-webkit-search-cancel-button { -webkit-appearance: none; }
.guess-input.placeholder-fade::placeholder { opacity: 0; }
.guess-input:disabled { opacity: 0.5; }


.guess-btn {
  background: none; border: none; cursor: pointer;
  font-size: 24px; color: var(--ink);
  padding: 8px 4px 8px 12px; line-height: 1;
  flex-shrink: 0;
}

.guess-btn:hover { color: var(--tint); }

.guess-hint {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; color: var(--ink-muted);
  text-transform: uppercase; letter-spacing: 0.1em; margin-top: 10px;
  min-height: 16px;
}

.guess-hint.error { color: var(--tint); }

/* guess toast */
.guess-area {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--cream);
  padding: 20px 0 12px;
}

.guess-toast {
  position: absolute;
  bottom: 100%;
  left: 0;
  right: 0;
  margin-bottom: 4px;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--tint);
  padding: 0;
  border-radius: 0 2px 2px 0;
  box-shadow: 0 1px 8px var(--shadow-soft);
  opacity: 0;
  transform: translateY(6px);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 10;
}

.guess-toast--visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.guess-toast--leaving {
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}

.toast-line {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
}

.toast-line + .toast-line {
  border-top: 1px dashed var(--rule);
}

.toast-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.toast-word {
  font-family: 'Fraunces', serif;
  font-size: 17px;
  font-weight: 500;
  color: var(--ink);
  flex: 1;
  min-width: 0;
}

.toast-detail {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  flex-shrink: 0;
}

.toast-line--miss .toast-word {
  color: var(--ink-faint);
}

.toast-line--miss .toast-detail {
  color: var(--ink-faint);
}

.toast-message {
  padding: 10px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
}

/* word list */
.word-list { padding: 16px 0 24px; }

.word-list-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-muted);
  padding: 8px 0; border-bottom: 1px dashed var(--rule);
  margin-bottom: 4px; display: flex; justify-content: space-between;
}

.word-entry {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 0; border-bottom: 1px solid var(--rule);
  animation: slideIn 0.3s ease backwards;
}

.word-rank {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--ink-muted);
  width: 32px; font-weight: 500;
}

.word-text {
  font-family: 'Fraunces', serif;
  font-size: 22px; font-weight: 500; flex: 1;
}

.word-freq {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--ink-muted);
}

.heat-dot {
  width: 14px; height: 14px; border-radius: 50%; flex-shrink: 0;
  box-shadow: 0 0 0 3px var(--cream), 0 0 0 4px currentColor;
}

.heat-very-hot { color: var(--heat-very-hot); background: var(--heat-very-hot); }
.heat-hot { color: var(--heat-hot); background: var(--heat-hot); }
.heat-warm { color: var(--heat-warm); background: var(--heat-warm); }
.heat-tepid { color: var(--heat-tepid); background: var(--heat-tepid); }
.heat-cold { color: var(--heat-cold); background: var(--heat-cold); }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: translateX(0); }
}

/* cold section */
.cold-section { padding: 12px 0 24px; }

.cold-toggle {
  background: none; border: none; cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-muted);
  padding: 10px 0; width: 100%; text-align: left;
  border-top: 1px dashed var(--rule);
  border-bottom: 1px dashed var(--rule);
  display: flex; justify-content: space-between;
}

.cold-toggle:hover { color: var(--tint); }

.cold-words {
  display: none; padding: 12px 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px; color: var(--ink-faint); line-height: 2;
  flex-wrap: wrap; gap: 0 16px;
  overflow-wrap: break-word; word-break: break-word;
}

.cold-words.expanded { display: flex; }

.cold-word {
  text-decoration: line-through;
  text-decoration-color: var(--ink-faint);
}

/* toast tip */
.toast-tip {
  padding: 8px 14px;
  border-top: 1px dashed var(--rule);
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-muted);
  font-style: italic;
}

/* ---- victory ---- */
.victory { padding: 40px 0 60px; text-align: center; }

.victory-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.2em; color: var(--tint); margin-bottom: 20px;
}

.victory-title {
  font-family: 'Fraunces', serif;
  font-size: 64px; font-weight: 900; line-height: 1;
  letter-spacing: -0.03em; margin-bottom: 8px;
}

.victory-category {
  font-family: 'Fraunces', serif;
  font-style: italic; font-size: 16px;
  color: var(--ink-muted); margin-bottom: 32px;
}

.victory-summary {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 28px 24px 22px;
  text-align: left;
  font-family: 'Fraunces', serif;
  font-size: 15px; line-height: 1.65;
  color: var(--ink-soft); margin-bottom: 28px;
  border-radius: 2px; position: relative;
}

.victory-summary::before {
  content: '\201C'; position: absolute; top: -20px; left: 10px;
  font-size: 48px; color: var(--tint);
  font-family: 'Fraunces', serif; line-height: 1;
  background: var(--cream); padding: 0 6px;
}

.victory-link {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--tint); text-decoration: none;
  margin-bottom: 28px;
  border-bottom: 1px solid var(--tint);
  padding-bottom: 2px;
}

.victory-link:hover { color: var(--ink); border-color: var(--ink); }

.victory-stats {
  display: grid; grid-template-columns: 1fr 1fr 1fr;
  gap: 2px; background: var(--rule);
  border: 1px solid var(--rule);
  margin-bottom: 28px; border-radius: 2px; overflow: hidden;
}

.stat-cell { background: var(--cream); padding: 18px 12px; text-align: center; }

.stat-value {
  font-family: 'Fraunces', serif;
  font-size: 32px; font-weight: 700;
  color: var(--ink); line-height: 1; margin-bottom: 6px;
}

.stat-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; text-transform: uppercase;
  letter-spacing: 0.1em; color: var(--ink-muted);
}

.victory-emoji {
  font-family: 'JetBrains Mono', monospace;
  font-size: 16px; letter-spacing: 2px;
  margin-bottom: 24px; color: var(--ink-soft);
}

.victory-nudge {
  font-family: 'Fraunces', serif;
  font-size: 14px;
  font-style: italic;
  color: var(--ink-faint);
  text-align: center;
  padding: 0 0 24px;
  letter-spacing: 0.01em;
}

.victory-actions { display: flex; gap: 10px; justify-content: center; }

.victory-btn {
  background: var(--cream); color: var(--ink);
  border: 1px solid var(--ink);
  padding: 12px 22px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; cursor: pointer;
  border-radius: 2px; font-weight: 600;
}

.victory-btn.primary { background: var(--ink); color: var(--cream); }

.victory-btn:hover {
  background: var(--tint); color: var(--cream); border-color: var(--tint);
}

/* ---- stats ---- */
.stats-screen { padding: 32px 0 60px; }

.stats-title {
  font-family: 'Fraunces', serif;
  font-size: 36px; font-weight: 700;
  letter-spacing: -0.02em; margin-bottom: 4px; margin-top: 24px;
}

.stats-subtitle {
  font-family: 'Fraunces', serif;
  font-style: italic; font-size: 15px;
  color: var(--ink-muted); margin-bottom: 32px;
}

.stats-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 14px; margin-bottom: 32px;
}

.stats-card {
  background: var(--paper);
  border: 1px solid var(--rule);
  padding: 22px 18px; border-radius: 2px;
}

.stats-card.wide { grid-column: 1 / -1; }

.stats-card-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-muted); margin-bottom: 10px;
}

.stats-card-value {
  font-family: 'Fraunces', serif;
  font-size: 48px; font-weight: 700;
  line-height: 1; color: var(--ink);
}

.stats-card-value .unit {
  font-size: 20px; color: var(--ink-muted);
  font-weight: 400; margin-left: 2px;
}

.category-breakdown { padding: 4px 0 0; }

.category-row {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 0; border-bottom: 1px dashed var(--rule);
}

.category-row:last-child { border-bottom: none; }
.category-row-icon { font-size: 18px; width: 24px; }

.category-row-name {
  font-family: 'Fraunces', serif;
  font-size: 16px; flex: 1;
}

.category-row-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--ink-muted);
}

.category-row-avg {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px; color: var(--tint);
  font-weight: 600; width: 60px; text-align: right;
}

.retention-notice {
  margin-top: 4px; padding: 20px 22px;
  background: transparent;
  border: 1px dashed var(--rule); border-radius: 2px;
  display: flex; gap: 14px; align-items: flex-start;
}

.retention-notice-icon {
  font-family: 'Fraunces', serif;
  font-size: 28px; color: var(--tint);
  line-height: 0.8; font-weight: 700;
}

.retention-notice-title {
  font-family: 'Fraunces', serif;
  font-size: 15px; color: var(--ink);
  font-weight: 500; margin-bottom: 4px;
}

.retention-notice-text {
  font-family: 'Fraunces', serif;
  font-size: 13px; line-height: 1.5;
  color: var(--ink-muted); font-style: italic;
}

/* ---- discovery meter ---- */
.discovery-meter {
  padding: 14px 0 18px;
  border-bottom: 1px dashed var(--rule);
}

.discovery-meter-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 8px;
}

.discovery-meter-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--ink-muted);
}

.discovery-meter-value {
  font-family: 'Fraunces', serif;
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
}

.discovery-meter-track {
  height: 3px;
  background: var(--rule);
  border-radius: 1px;
  overflow: hidden;
}

.discovery-meter-fill {
  height: 100%;
  background: var(--tint);
  border-radius: 1px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  min-width: 2px;
}

.stat-unit {
  font-size: 18px;
  font-weight: 400;
  color: var(--ink-muted);
  margin-left: 1px;
}

/* ---- game hints ---- */
.game-hints {
  padding: 16px 0;
  border-bottom: 1px dashed var(--rule);
}

.hint-text {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-style: italic;
  color: var(--tint);
  margin-bottom: 4px;
}

.hint-prefix {
  color: var(--ink-muted);
  font-style: normal;
}

.hint-separator {
  color: var(--ink-muted);
  font-style: normal;
  margin: 0 2px;
}

.hint-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
}

/* ---- practice ---- */
.practice-section {
  padding: 20px 0 8px;
}

.practice-btn {
  width: 100%;
  background: var(--paper);
  border: 1px dashed var(--rule);
  padding: 16px 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-muted);
  cursor: pointer;
  border-radius: 2px;
  transition: border-color 0.2s, color 0.2s;
}

.practice-btn:hover {
  border-color: var(--tint);
  color: var(--tint);
}

/* ---- settings ---- */
.settings-section {
  padding: 16px 0;
  border-top: 1px dashed var(--rule);
}

.settings-toggle {
  background: none; border: none; cursor: pointer;
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px; text-transform: uppercase;
  letter-spacing: 0.12em; color: var(--ink-muted);
  padding: 0; width: 100%; text-align: left;
}

.settings-toggle:hover { color: var(--tint); }

.settings-panel {
  padding: 14px 0 4px;
}

.settings-label {
  display: flex; align-items: center; gap: 10px;
  font-family: 'Fraunces', serif;
  font-size: 14px; color: var(--ink-soft);
  padding: 8px 0; cursor: pointer;
}

.settings-label input[type="checkbox"] {
  accent-color: var(--tint);
  width: 16px; height: 16px;
}

/* ---- history / encyclopedia ---- */
.history-list { padding: 4px 0 24px; }

.history-entry {
  display: block;
  padding: 18px 0;
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
  color: inherit;
  transition: transform 0.2s ease;
}

.history-entry:hover { transform: translateX(4px); }

.history-entry-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.history-entry-icon { font-size: 18px; }

.history-entry-title {
  font-family: 'Fraunces', serif;
  font-size: 20px;
  font-weight: 500;
  flex: 1;
}

.history-entry-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}

.history-entry-summary {
  font-family: 'Fraunces', serif;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-muted);
  font-style: italic;
  margin-bottom: 6px;
}

.history-entry-stats {
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
}

/* ---- reset button ---- */
.reset-btn {
  display: block;
  width: 100%;
  margin-top: 24px;
  padding: 14px 20px;
  background: none;
  border: 1px dashed var(--rule);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ink-faint);
  cursor: pointer;
  border-radius: 2px;
}

.reset-btn:hover {
  color: var(--tint);
  border-color: var(--tint);
}

/* ---- credits ---- */
.home-credits {
  padding: 0 0 40px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-faint);
  text-align: center;
}

.home-credits a {
  color: var(--ink-muted);
  text-decoration: none;
  border-bottom: 1px solid var(--rule);
}

.home-credits a:hover {
  color: var(--tint);
  border-bottom-color: var(--tint);
}

/* ---- empty state ---- */
.empty-state {
  text-align: center; padding: 60px 0;
  font-family: 'Fraunces', serif;
  font-size: 16px; color: var(--ink-muted);
  font-style: italic;
}

/* ---- masthead right group ---- */
.masthead-right {
  display: flex;
  align-items: baseline;
  gap: 12px;
}

/* ---- help button ---- */
.help-btn {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 1.5px solid var(--rule);
  background: none;
  cursor: pointer;
  font-family: 'Fraunces', serif;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-muted);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  position: relative;
  top: -1px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.help-btn:hover {
  color: var(--tint);
  border-color: var(--tint);
}

@keyframes help-pulse {
  0%, 100% { transform: scale(1); color: var(--ink-muted); border-color: var(--rule); }
  50%      { transform: scale(1.35); color: var(--tint); border-color: var(--tint); }
}

.help-btn--pulse {
  animation: help-pulse 0.6s ease-in-out 4;
}

/* ---- help overlay ---- */
.help-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.help-overlay.open {
  pointer-events: auto;
  opacity: 1;
  visibility: visible;
}

.help-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(26, 22, 19, 0.4);
}

.help-panel {
  position: relative;
  z-index: 1;
  background: var(--cream);
  border-top: 1px solid var(--rule);
  width: 100%;
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 32px 28px 36px;
  transform: translateY(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 -8px 40px rgba(26, 22, 19, 0.12);
}

.help-overlay.open .help-panel {
  transform: translateY(0);
}

.help-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
  color: var(--ink-muted);
  padding: 4px;
  transition: color 0.2s ease;
}

.help-close:hover {
  color: var(--tint);
}

.help-header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px dashed var(--rule);
}

.help-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--tint);
  display: block;
  margin-bottom: 8px;
}

.help-title {
  font-family: 'Fraunces', serif;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  color: var(--ink);
}

.help-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 28px;
}

.help-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.help-step-number {
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Fraunces', serif;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 1px;
}

.help-step-body strong {
  font-family: 'Fraunces', serif;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  display: block;
  margin-bottom: 3px;
}

.help-step-body p {
  font-family: 'Fraunces', serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-muted);
  font-style: italic;
}

.help-footer {
  padding-top: 20px;
  border-top: 1px dashed var(--rule);
}

.help-heat-legend {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.help-heat-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

.help-heat-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* ---- responsive ---- */
@media (max-width: 480px) {
  .app { padding: 0 16px; }
  .masthead-title { font-size: 34px; }
  .victory-title { font-size: 38px; }
  .stats-card-value { font-size: 36px; }
  .guess-input { font-size: 22px; }
  .word-text { font-size: 18px; }
  .word-entry { gap: 10px; }
  .game-category { font-size: 18px; }
  .challenge-name { font-size: 20px; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* ---- dark mode ---- */
@media (prefers-color-scheme: dark) {
  :root {
    --cream: #1c1917;
    --cream-dark: #252220;
    --paper: #23201d;
    --ink: #ede6d9;
    --ink-soft: #d1c8b8;
    --ink-muted: #a89883;
    --ink-faint: #6b5d4e;
    --rule: #3d342b;
    --tint: #e86a4e;
    --tint-soft: #f08a6e;
    --heat-very-hot: #e86a4e;
    --heat-hot: #e8924e;
    --heat-warm: #d4a84a;
    --heat-tepid: #9aa472;
    --heat-cold: #7a9098;
    --shadow-soft: rgba(0, 0, 0, 0.25);
    --shadow-overlay: rgba(232, 106, 78, 0.03);
  }

  html, body { color: var(--ink); }
  .guess-input { color: var(--ink); }
  .guess-input::placeholder { color: var(--ink-faint); }
  .guess-input-wrap { border-bottom-color: var(--ink-muted); }
  .challenge { color: var(--ink); }
  .challenge-hardcore { background: var(--cream-dark); }
  .victory-btn { background: var(--cream); color: var(--ink); border-color: var(--ink-muted); }
  .victory-btn.primary { background: var(--ink); color: var(--cream); }
  .victory-btn:hover { background: var(--tint); color: var(--cream); }
  .stat-cell { background: var(--cream); }
  .stats-card { background: var(--paper); border-color: var(--rule); }
  .back-btn { color: var(--ink-muted); border-color: var(--rule); }
  .heat-dot { box-shadow: 0 0 0 3px var(--cream), 0 0 0 4px currentColor; }
  .victory-summary { background: var(--paper); }
  .victory-summary::before { background: var(--cream); }
  .welcome-back-banner { background: var(--paper); border-color: var(--rule); }
  .settings-label { color: var(--ink-soft); }
  .history-entry { color: var(--ink); }
  .nav-link { color: var(--ink-soft); }
  .guess-btn { color: var(--ink); }
  .help-btn { color: var(--ink-muted); border-color: var(--rule); }
  .help-panel { background: var(--cream); border-color: var(--rule); }
  .help-backdrop { background: rgba(0, 0, 0, 0.55); }
  .help-step-number { border-color: var(--ink-muted); color: var(--ink); }
}