/* ─── Custom Properties ─────────────────────────────────── */
:root {
  --brand:        #C0392B;
  --brand-dark:   #922b21;
  --brand-light:  rgba(192, 57, 43, 0.07);
  --brand-mid:    rgba(192, 57, 43, 0.15);

  --correct:      #27AE60;
  --correct-bg:   rgba(39, 174, 96, 0.08);
  --incorrect:    #C0392B;
  --incorrect-bg: rgba(192, 57, 43, 0.08);

  --text:         #1a1a1a;
  --text-muted:   #6b6b6b;
  --border:       #e2e2df;
  --bg:           #f8f8f5;
  --card:         #ffffff;

  --font-story:   'Fraunces', Georgia, serif;
  --font-ui:      'DM Sans', system-ui, -apple-system, sans-serif;

  --radius:       14px;
  --radius-sm:    9px;
  --shadow:       0 1px 2px rgba(0,0,0,.04), 0 2px 8px rgba(0,0,0,.05);
  --shadow-lg:    0 4px 20px rgba(0,0,0,.09);
}

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

[hidden] { display: none !important; }

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─── Layout ─────────────────────────────────────────────── */
.container {
  max-width: 740px;
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

main.container {
  flex: 1;
  padding-bottom: 60px;
}

/* ─── Header ─────────────────────────────────────────────── */
.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  color: inherit;
}

.logo-mark {
  display: grid;
  place-items: center;
  width: 32px;
  height: 32px;
  background: var(--brand);
  color: #fff;
  border-radius: 9px;
  font-family: var(--font-story);
  font-weight: 600;
  font-size: 17px;
  font-style: italic;
  line-height: 1;
  flex-shrink: 0;
}

.logo-text {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
}

.header-date {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

/* ─── Level Nav ──────────────────────────────────────────── */
.level-nav {
  display: flex;
  gap: 6px;
  padding: 22px 0 0;
}

.level-tab,
.submit-level-tab {
  font-family: var(--font-ui);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.4px;
  padding: 6px 18px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.14s, border-color 0.14s, background 0.14s;
  line-height: 1;
}

.level-tab:hover:not(.active),
.submit-level-tab:hover:not(.active) {
  border-color: var(--brand);
  color: var(--brand);
  background: var(--brand-light);
}

.level-tab.active,
.submit-level-tab.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}

/* ─── State Panels ───────────────────────────────────────── */
.state-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 80px 20px;
  color: var(--text-muted);
  font-size: 15px;
  text-align: center;
}

.spinner {
  width: 30px;
  height: 30px;
  border: 2.5px solid var(--border);
  border-top-color: var(--brand);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.error-icon { font-size: 36px; }
.error-message { color: var(--brand); font-weight: 500; }

/* ─── Puzzle Meta ────────────────────────────────────────── */
.puzzle-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 10px;
  padding: 26px 0 16px;
}

.puzzle-title {
  font-family: var(--font-story);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text);
  line-height: 1.3;
}

.level-badge {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--brand);
  background: var(--brand-light);
  border: 1px solid var(--brand-mid);
  border-radius: 5px;
  padding: 2px 8px;
  flex-shrink: 0;
}

/* ─── Story Card ─────────────────────────────────────────── */
.story-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 34px;
  box-shadow: var(--shadow);
}

.story-text {
  font-family: var(--font-story);
  font-size: 18px;
  font-weight: 300;
  line-height: 2.2;
  color: var(--text);
}

/* ─── Blank Inputs ───────────────────────────────────────── */
.blank-wrapper {
  display: inline-block;
  position: relative;
  vertical-align: baseline;
  margin: 0 2px;
}

.blank-num {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-ui);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.2px;
  color: var(--brand);
  opacity: 0.6;
  pointer-events: none;
  white-space: nowrap;
}

.blank-input {
  font-family: var(--font-story);
  font-size: 18px;
  font-weight: 400;
  color: var(--text);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--brand);
  border-radius: 0;
  outline: none;
  padding: 0 5px 1px;
  min-width: 48px;
  text-align: center;
  transition: background 0.15s, border-color 0.15s;
  line-height: inherit;
  -webkit-appearance: none;
}

.blank-input::placeholder { color: var(--brand); opacity: 0.3; font-style: italic; }

.blank-input:focus {
  border-bottom-color: var(--brand-dark);
  background: var(--brand-light);
  border-radius: 4px 4px 0 0;
}

.blank-input.checked {
  border-radius: 4px 4px 0 0;
  pointer-events: none;
  user-select: none;
}

.blank-input.checked.correct {
  color: var(--correct);
  border-bottom-color: var(--correct);
  background: var(--correct-bg);
}

.blank-input.checked.incorrect {
  color: var(--incorrect);
  border-bottom-color: var(--incorrect);
  background: var(--incorrect-bg);
}

/* ─── Word Bank ──────────────────────────────────────────── */
.word-bank-section {
  margin-top: 24px;
}

.section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.3px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.word-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.word-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 15px;
  border: 1.5px solid var(--border);
  border-radius: 100px;
  background: var(--card);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: border-color 0.13s, background 0.13s, transform 0.1s;
  user-select: none;
  font-family: inherit;
  -webkit-appearance: none;
}

.word-chip:hover {
  border-color: var(--brand);
  background: var(--brand-light);
  transform: translateY(-1px);
}

.word-chip:active { transform: translateY(0); }

.chip-word {
  font-family: var(--font-story);
  font-size: 15px;
  font-style: italic;
  color: var(--text);
}

.chip-tag {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.chip-gender {
  font-size: 10px;
  font-weight: 700;
  color: var(--brand);
}

/* ─── Controls ───────────────────────────────────────────── */
.controls {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.btn {
  font-family: var(--font-ui);
  font-size: 14px;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: background 0.14s, color 0.14s, border-color 0.14s, transform 0.1s;
  line-height: 1;
  -webkit-appearance: none;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--brand);
  color: #fff;
}
.btn-primary:hover { background: var(--brand-dark); }

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1.5px solid var(--border);
}
.btn-ghost:hover { border-color: #aaa; color: var(--text); }

.btn-share {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--text);
  color: #fff;
  padding: 11px 22px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
}
.btn-share:hover { background: #333; }

/* ─── Results Panel ──────────────────────────────────────── */
.results-panel {
  margin-top: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 30px 34px;
  box-shadow: var(--shadow-lg);
}

.results-header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
}

.results-score {
  display: flex;
  align-items: baseline;
  gap: 3px;
  flex-shrink: 0;
}

.score-number {
  font-family: var(--font-story);
  font-size: 60px;
  font-weight: 600;
  color: var(--brand);
  line-height: 1;
  letter-spacing: -2px;
}

.score-denom {
  font-family: var(--font-story);
  font-size: 30px;
  font-weight: 300;
  color: var(--text-muted);
}

.results-label {
  font-size: 16px;
  color: var(--text-muted);
  font-weight: 400;
  line-height: 1.4;
}

/* ─── Breakdown ──────────────────────────────────────────── */
.score-breakdown {
  display: flex;
  flex-direction: column;
  gap: 9px;
  margin-bottom: 26px;
}

.breakdown-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg);
}

.bd-icon {
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
  width: 18px;
  text-align: center;
}

.bd-icon.correct { color: var(--correct); }
.bd-icon.incorrect { color: var(--incorrect); }

.bd-base {
  font-family: var(--font-story);
  font-style: italic;
  color: var(--text-muted);
  min-width: 90px;
  font-size: 14px;
}

.bd-arrow {
  color: var(--text-muted);
  font-size: 12px;
  flex-shrink: 0;
}

.bd-answers {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
  flex: 1;
}

.bd-given {
  font-weight: 600;
}
.bd-given.correct { color: var(--correct); }
.bd-given.incorrect { color: var(--incorrect); }

.bd-sep-joiner {
  color: var(--text-muted);
  font-size: 12px;
}

.bd-expected {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 400;
}

.bd-tag {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  padding: 2px 6px;
  border-radius: 4px;
  background: var(--brand-light);
  color: var(--brand);
  border: 1px solid var(--brand-mid);
  margin-left: 2px;
  flex-shrink: 0;
}

/* ─── Results Actions ────────────────────────────────────── */
.results-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.share-toast {
  font-size: 13px;
  font-weight: 500;
  color: var(--correct);
  min-height: 20px;
}

/* ─── Footer ─────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--card);
  padding: 18px 0;
  margin-top: auto;
}

.site-footer p {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
}

/* ─── Completed state hides controls ─────────────────────── */
#puzzle-content.completed #controls { display: none; }

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 600px) {
  .container { padding: 0 16px; }
  .story-card, .results-panel { padding: 20px; }
  .story-text { font-size: 17px; line-height: 2.1; }
  .blank-input { font-size: 17px; }
  .score-number { font-size: 48px; }
  .score-denom { font-size: 24px; }
  .puzzle-title { font-size: 19px; }
  .results-header { flex-direction: column; gap: 4px; }
}

@media (max-width: 400px) {
  .level-tab, .submit-level-tab { padding: 6px 12px; font-size: 12px; }
  .word-chip { padding: 6px 12px; }
}