/* ═══════════════════════════════════════
   Quranic Words — Stylesheet
   ═══════════════════════════════════════ */

/* ─── CSS Variables ─── */
:root {
  --color-bg: #0f1419;
  --color-surface: #1a2332;
  --color-surface-hover: #243044;
  --color-primary: #1b9e77;
  --color-primary-hover: #159e6e;
  --color-secondary: #2d6a8f;
  --color-accent: #d4a259;
  --color-text: #e8e8e8;
  --color-text-muted: #8899aa;
  --color-text-arabic: #ffffff;
  --color-correct: #22c55e;
  --color-wrong: #ef4444;
  --color-border: #2a3a4e;
  --font-arabic: 'Noto Sans Arabic', 'Amiri', 'Traditional Arabic', serif;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.2);
  --max-width: 600px;
  --transition: 0.2s ease;
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
}

/* ─── Layout ─── */
#app {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* ─── Header ─── */
.app-header {
  padding: 16px 0 8px;
  text-align: center;
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 4px;
  min-width: 48px;
}

.app-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.app-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

.icon-btn {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.3rem;
  cursor: pointer;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.icon-btn:hover {
  background: var(--color-surface);
}

#menu-btn {
  font-size: 1.5rem;
}

/* ─── Slide-out Menu ─── */
.menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(2px);
  animation: fadeIn 0.15s ease;
}

.menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(280px, 80vw);
  height: 100%;
  background: var(--color-surface);
  box-shadow: -4px 0 24px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.menu-title {
  font-size: 1.1rem;
  font-weight: 600;
}

.menu-list {
  list-style: none;
  padding: 8px 0;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 14px 20px;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: background var(--transition);
  text-align: left;
}

.menu-item:hover {
  background: var(--color-surface-hover);
}

.menu-icon {
  font-size: 1.3rem;
  width: 28px;
  text-align: center;
}

/* ─── Dev Banner ─── */
.dev-banner {
  background: rgba(212, 162, 89, 0.15);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.8rem;
  text-align: center;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  line-height: 1.4;
}

/* ─── Screens ─── */
.screen {
  display: none;
  flex: 1;
  padding: 16px 0;
  animation: fadeIn 0.25s ease;
}

.screen.active {
  display: flex;
  flex-direction: column;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.screen-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

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

/* ─── Mode Cards (Home) ─── */
.mode-cards {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 24px;
}

.mode-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
  color: var(--color-text);
  font-family: var(--font-body);
}

.mode-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.mode-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.mode-label {
  font-size: 1.1rem;
  font-weight: 600;
  display: block;
}

.mode-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: block;
}

/* ─── Theme Cards ─── */
.theme-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.theme-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
  color: var(--color-text);
  font-family: var(--font-body);
}

.theme-card:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-primary);
}

.theme-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
}

.theme-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.theme-name {
  font-weight: 600;
  font-size: 1rem;
}

.theme-desc {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.theme-progress {
  font-size: 0.75rem;
  color: var(--color-primary);
  font-weight: 500;
}

.theme-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  flex-shrink: 0;
  background: var(--color-bg);
  padding: 4px 10px;
  border-radius: 20px;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition);
}

.btn.primary {
  background: var(--color-primary);
  color: white;
}

.btn.primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn.secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn.secondary:hover:not(:disabled) {
  background: var(--color-surface-hover);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.full-width {
  width: 100%;
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-primary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  padding: 4px 0;
  font-family: var(--font-body);
  transition: color var(--transition);
}

.btn-link:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

/* ─── Flashcard ─── */
.learn-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.progress-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.flashcard {
  perspective: 1000px;
  height: 300px;
  cursor: pointer;
  margin: 12px 0;
  outline: none;
}

.flashcard-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.5s ease;
  transform-style: preserve-3d;
}

.flashcard.flipped .flashcard-inner {
  transform: rotateY(180deg);
}

.flashcard-front,
.flashcard-back {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.flashcard-back {
  transform: rotateY(180deg);
}

.flashcard-arabic {
  font-family: var(--font-arabic);
  font-size: 3.5rem;
  color: var(--color-text-arabic);
  direction: rtl;
  line-height: 1.4;
}

.flashcard-hint {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 16px;
}

.flashcard-translit {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.flashcard-meaning {
  font-size: 1.1rem;
  color: var(--color-text);
  text-align: center;
  margin-bottom: 16px;
}

.flashcard-actions {
  margin-top: 8px;
}

.learn-nav {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.learn-nav .btn {
  flex: 1;
  max-width: 200px;
}

#done-btn {
  background: var(--color-correct);
  flex: 1;
  max-width: 200px;
}

#done-btn:hover {
  background: #1aad52;
}

/* ─── SRS Controls ─── */
.srs-controls {
  text-align: center;
  margin-top: 16px;
  padding: 16px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.srs-prompt {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.srs-buttons {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.srs-btn {
  padding: 8px 20px;
  font-size: 0.85rem;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.srs-btn[data-quality="1"] { border-color: var(--color-wrong); color: var(--color-wrong); }
.srs-btn[data-quality="3"] { border-color: var(--color-accent); color: var(--color-accent); }
.srs-btn[data-quality="5"] { border-color: var(--color-correct); color: var(--color-correct); }

.srs-btn:hover {
  transform: scale(1.05);
}

.srs-btn-active {
  transform: scale(0.95) !important;
  opacity: 0.7;
}

/* ─── Deep Dive ─── */
.deepdive-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 24px;
}

.dd-arabic {
  font-family: var(--font-arabic);
  font-size: 3rem;
  color: var(--color-text-arabic);
  direction: rtl;
  text-align: center;
  margin-bottom: 4px;
}

.dd-translit {
  text-align: center;
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--color-accent);
}

.dd-meaning {
  text-align: center;
  color: var(--color-text-muted);
  margin-bottom: 20px;
  font-size: 1rem;
}

.dd-section {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

.dd-section h3 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.dd-root-value {
  font-family: var(--font-arabic);
  font-size: 1.8rem;
  direction: rtl;
  color: var(--color-text-arabic);
  text-align: center;
  letter-spacing: 0.3em;
}

.dd-derivatives {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.deriv-chip {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.deriv-arabic {
  font-family: var(--font-arabic);
  font-size: 1.2rem;
  direction: rtl;
  color: var(--color-text-arabic);
}

.deriv-meaning {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.dd-verses {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.verse-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px;
}

.verse-text {
  font-family: var(--font-arabic);
  font-size: 1.3rem;
  line-height: 2;
  color: var(--color-text-arabic);
  direction: rtl;
  text-align: right;
}

.verse-ref {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 6px;
}

.dd-phrases {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.phrase-chip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.phrase-arabic {
  font-family: var(--font-arabic);
  font-size: 1.2rem;
  color: var(--color-text-arabic);
  direction: rtl;
}

.phrase-meaning {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: right;
  flex-shrink: 0;
}

/* ─── Quiz ─── */
.quiz-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.quiz-score {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-primary);
}

.quiz-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
}

.quiz-prompt {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.quiz-arabic {
  font-family: var(--font-arabic);
  font-size: 3rem;
  color: var(--color-text-arabic);
  direction: rtl;
  margin-bottom: 24px;
}

.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quiz-option {
  padding: 14px 18px;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: var(--font-body);
  cursor: pointer;
  transition: all var(--transition);
  text-align: left;
}

.quiz-option:hover:not(:disabled) {
  border-color: var(--color-primary);
  background: var(--color-surface-hover);
}

.quiz-option.correct {
  border-color: var(--color-correct);
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-correct);
}

.quiz-option.wrong {
  border-color: var(--color-wrong);
  background: rgba(239, 68, 68, 0.15);
  color: var(--color-wrong);
}

.quiz-option:disabled {
  cursor: default;
}

.quiz-feedback {
  text-align: center;
  padding: 12px;
  border-radius: var(--radius-sm);
  margin-top: 12px;
  font-weight: 600;
  font-size: 0.95rem;
}

.feedback-correct {
  background: rgba(34, 197, 94, 0.1);
  color: var(--color-correct);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.feedback-wrong {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-wrong);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Quiz Result */
.quiz-result {
  text-align: center;
  padding: 32px 20px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.result-title {
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.result-score {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 24px;
}

.quiz-result .btn {
  margin: 6px;
  min-width: 140px;
}

/* ─── Kahoot ─── */
.kahoot-setup {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.kahoot-role-select {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
}

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* Form controls */
.form-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.form-input {
  padding: 12px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1rem;
  font-family: var(--font-body);
  transition: border-color var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

select.form-input {
  cursor: pointer;
}

/* Room Code */
.room-code-display {
  text-align: center;
  padding: 24px;
  background: var(--color-surface);
  border: 2px solid var(--color-primary);
  border-radius: var(--radius);
}

.room-code-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.room-code {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  margin: 8px 0;
}

.room-code-hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* Player List */
.kahoot-player-list {
  padding: 16px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.kahoot-player-list h3 {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}

.kahoot-player-list ul {
  list-style: none;
}

.kahoot-player-list li {
  padding: 8px 12px;
  background: var(--color-bg);
  border-radius: var(--radius-sm);
  margin-bottom: 6px;
  font-weight: 500;
}

/* Status text */
.status-text {
  font-size: 0.85rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  text-align: center;
}

.status-info {
  color: var(--color-secondary);
  background: rgba(45, 106, 143, 0.1);
}

.status-error {
  color: var(--color-wrong);
  background: rgba(239, 68, 68, 0.1);
}

/* Waiting */
.waiting-display {
  text-align: center;
  padding: 32px;
}

.waiting-text {
  color: var(--color-text-muted);
  font-size: 1rem;
  margin-bottom: 16px;
}

.spinner {
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 0.8s linear infinite;
}

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

/* Kahoot Play */
.kahoot-play-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.kahoot-timer {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent);
  min-width: 48px;
  text-align: center;
}

/* Kahoot colored options */
.kahoot-option.kahoot-red {
  border-color: #e74c3c;
}
.kahoot-option.kahoot-red:hover:not(:disabled) {
  background: rgba(231, 76, 60, 0.15);
  border-color: #e74c3c;
}

.kahoot-option.kahoot-blue {
  border-color: #3498db;
}
.kahoot-option.kahoot-blue:hover:not(:disabled) {
  background: rgba(52, 152, 219, 0.15);
  border-color: #3498db;
}

.kahoot-option.kahoot-green {
  border-color: #2ecc71;
}
.kahoot-option.kahoot-green:hover:not(:disabled) {
  background: rgba(46, 204, 113, 0.15);
  border-color: #2ecc71;
}

.kahoot-option.kahoot-yellow {
  border-color: #f1c40f;
}
.kahoot-option.kahoot-yellow:hover:not(:disabled) {
  background: rgba(241, 196, 15, 0.15);
  border-color: #f1c40f;
}

.kahoot-answered {
  text-align: center;
  margin-top: 16px;
}

/* Round result */
.kahoot-round-answer {
  text-align: center;
  padding: 20px;
  background: var(--color-surface);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  margin-bottom: 16px;
}

.round-word {
  font-family: var(--font-arabic);
  font-size: 2.5rem;
  color: var(--color-text-arabic);
  direction: rtl;
}

.round-correct {
  font-size: 1.1rem;
  color: var(--color-correct);
  font-weight: 600;
  margin-top: 4px;
}

.kahoot-next-hint {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
  margin-top: 16px;
}

/* Scoreboard */
.kahoot-scoreboard {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.score-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.score-first {
  border-color: var(--color-accent);
  background: rgba(212, 162, 89, 0.08);
}

.score-rank {
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--color-text-muted);
  min-width: 28px;
}

.score-first .score-rank {
  color: var(--color-accent);
}

.score-name {
  flex: 1;
  font-weight: 600;
}

.score-points {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 1.1rem;
}

.trophy {
  text-align: center;
  font-size: 4rem;
  margin: 16px 0;
}

/* Final score screen buttons */
#kahoot-score-screen .btn {
  margin-top: 8px;
}

/* ─── Responsive ─── */
@media (max-width: 480px) {
  :root {
    --max-width: 100%;
  }

  .flashcard-arabic {
    font-size: 2.8rem;
  }

  .quiz-arabic {
    font-size: 2.5rem;
  }

  .dd-arabic {
    font-size: 2.5rem;
  }

  .room-code {
    font-size: 2rem;
  }
}

@media (min-width: 768px) {
  .mode-cards {
    flex-direction: row;
  }

  .mode-card {
    flex: 1;
    flex-direction: column;
    text-align: center;
    padding: 28px 16px;
  }
}