/* FLASHCARDS 10 — Page Layouts */

/* === SHARED === */
.main { flex: 1; padding: 24px 16px; max-width: 1200px; margin: 0 auto; width: 100%; }

/* === HERO (index) === */
.hero {
  background: var(--vm-gradiente);
  background-size: 200% 200%;
  animation: breathe 8s ease infinite;
  padding: 40px 24px 52px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 2.6rem;
  color: #fff;
  letter-spacing: 1px;
}

.hero-subtitle {
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: 1.05rem;
  color: rgba(255,255,255,0.85);
  margin-top: 6px;
}

#particles-canvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

/* === DASHBOARD (index) === */
.dashboard-panel {
  max-width: 640px;
  margin: -32px auto 28px;
  position: relative;
  z-index: 10;
}

.today-panel {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 32px 28px;
  box-shadow: 0 8px 40px var(--shadow-heavy);
  border: 1px solid var(--border);
  text-align: center;
  position: relative;
}

.today-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.today-breakdown {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.today-item { text-align: center; }

.today-item-number {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 1.6rem;
  line-height: 1;
}

.today-item-number.nueva { color: var(--badge-nueva); }
.today-item-number.aprendiendo { color: var(--badge-aprendiendo); }
.today-item-number.madura { color: var(--badge-madura); }

.today-item-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.72rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 4px;
}

.today-total {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 4px;
}

.today-estimate {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.today-preview {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 16px;
}

.racha-display {
  position: absolute;
  top: 20px;
  right: 24px;
  text-align: center;
}

.racha-number {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--vm-rojo);
}

.racha-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.racha-icon {
  font-size: 1.2rem;
  display: block;
}

/* Progress global */
.global-progress {
  margin: 20px auto;
  max-width: 640px;
}

.global-progress-text {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
}

/* Forecast semanal */
.forecast {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
  margin: 20px auto;
  max-width: 640px;
}

.forecast-day { text-align: center; }

.forecast-bar {
  height: 60px;
  border-radius: 4px;
  background: var(--border);
  position: relative;
  overflow: hidden;
}

.forecast-bar-fill {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--vm-gradiente);
  border-radius: 4px;
  transition: height 0.5s ease;
}

.forecast-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.65rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.forecast-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--text);
  margin-top: 2px;
}

/* Mazo personalizado */
.custom-mazo {
  max-width: 640px;
  margin: 24px auto;
}

.section-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 14px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.filter-section { margin: 14px 0; display: none; }
.filter-section.visible { display: block; }

.year-inputs { display: flex; gap: 12px; }
.year-inputs input { flex: 1; }

.counter-text {
  text-align: center;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--vm-rojo);
  margin: 14px 0;
}

/* === STUDY PAGE === */
.study-subheader {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 20px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
}

.study-subheader-left { display: flex; align-items: center; gap: 10px; }

.btn-exit {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 6px 16px;
  border: 2px solid var(--color-otra);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--color-otra);
  cursor: pointer;
  transition: all 0.2s;
}

.btn-exit:hover { background: var(--color-otra); color: #fff; }

.btn-fav {
  font-size: 1.2rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.2s, transform 0.2s;
  padding: 4px;
}

.btn-fav.active { color: var(--vm-rojo); transform: scale(1.2); }

.study-subheader-center {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text);
  text-align: center;
  flex: 1;
  padding: 0 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.study-subheader-right {
  font-family: 'JetBrains Mono', monospace;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--vm-rojo);
}

.mazo-progress {
  height: 4px;
  background: var(--border);
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  z-index: 99;
}

.mazo-progress-bar {
  height: 100%;
  background: var(--vm-gradiente);
  transition: width 0.3s ease;
  border-radius: 0 2px 2px 0;
}

/* Study layout: everything stacked vertically centered */
.study-layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 24px 16px 32px;
  width: 100%;
  max-width: 700px;
  margin: 0 auto;
  gap: 16px;
}

.flashcard-front-inner,
.flashcard-back-inner {
  padding: 32px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.flashcard-badges {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.flashcard-pregunta {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 1.25rem;
  color: var(--text);
  text-align: center;
  padding: 24px 8px;
  line-height: 1.5;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flashcard-respuesta {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-bien);
  text-align: center;
  padding: 24px 8px;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

[data-theme="dark"] .flashcard-respuesta { color: #4ade80; }

.flashcard-intervalo {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 16px;
  display: none;
}

.flashcard-actions {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 10px;
  width: 100%;
}

.flashcard-actions .btn {
  padding: 12px;
  font-size: 0.85rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flashcard-actions .btn small {
  display: block;
  font-size: 0.68rem;
  font-weight: 400;
  opacity: 0.7;
  margin-top: 2px;
}

/* Phoenix Timer */
.phoenix-timer {
  width: 100%;
  text-align: center;
}

.phoenix-track {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.phoenix-bird {
  flex-shrink: 0;
  animation: phoenixFly 1.5s ease-in-out infinite;
  transition: all 0.5s;
}

@keyframes phoenixFly {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.phoenix-bird.dying {
  animation: phoenixDie 0.6s ease-out forwards;
}

@keyframes phoenixDie {
  0% { transform: translateY(0) rotate(0); opacity: 1; }
  50% { transform: translateY(10px) rotate(45deg); opacity: 0.6; }
  100% { transform: translateY(20px) rotate(90deg); opacity: 0.15; }
}

.phoenix-dead {
  flex-shrink: 0;
}

.phoenix-bar-track {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.phoenix-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 1s linear, background-color 0.5s;
  background: var(--color-bien);
}

.phoenix-bar-fill.timer-pulse {
  animation: pulse 0.5s ease infinite;
}

.phoenix-text {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

.tap-hint {
  font-family: 'Inter', sans-serif;
  font-size: 0.8rem;
  color: var(--text-secondary);
  text-align: center;
  padding: 0 0 20px;
  opacity: 0.6;
}

/* === NAV BUTTONS (prev/next) === */
.fc-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  gap: 10px;
}

.fc-nav-btn {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 10px;
  padding: 10px 20px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}

.fc-nav-btn:hover:not(:disabled) {
  border-color: var(--vm-rojo);
  color: var(--vm-rojo);
  background: rgba(255, 45, 51, 0.04);
}

.fc-nav-btn:active:not(:disabled) {
  transform: scale(0.96);
}

.fc-nav-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.fc-nav-info {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  flex-shrink: 1;
  min-width: 0;
}

/* === RESULTS PAGE === */
.results-container {
  max-width: 600px;
  margin: 32px auto;
  padding: 0 16px;
  text-align: center;
}

.results-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--text);
  margin-bottom: 24px;
}

.results-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 24px;
}

.result-card {
  border-radius: var(--radius-md);
  padding: 24px 16px;
  text-align: center;
}

.result-card.dominadas {
  background: rgba(15,155,88,0.06);
  border: 2px solid var(--color-bien);
}

.result-card.repasar {
  background: rgba(192,57,43,0.06);
  border: 2px solid var(--color-otra);
}

.result-number {
  font-family: 'DM Sans', sans-serif;
  font-weight: 800;
  font-size: 2.2rem;
  line-height: 1;
}

.result-card.dominadas .result-number { color: var(--color-bien); }
.result-card.repasar .result-number { color: var(--color-otra); }

.result-label {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 6px;
  text-transform: uppercase;
}

.results-retention {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--vm-rojo);
  margin: 20px 0 4px;
}

.results-retention-sub {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.results-global { margin: 16px 0; }

.results-global-label {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
}

.results-meta {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin: 24px 0;
}

.meta-value {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text);
}

.meta-label {
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.results-preview {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin: 16px 0 24px;
}

.results-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* === STATS PAGE === */
.stats-container {
  max-width: 800px;
  margin: 24px auto;
  padding: 0 16px;
}

.stats-section { margin-bottom: 32px; }

.stats-section-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin-bottom: 16px;
}

.heatmap-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.heatmap-cell {
  aspect-ratio: 1;
  border-radius: 3px;
  background: var(--border);
}

.chart-container {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  padding: 20px;
  border: 1px solid var(--border);
}

.course-progress-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}

.course-progress-name {
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  width: 180px;
  flex-shrink: 0;
}

.course-progress-bar {
  flex: 1;
  height: 8px;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.course-progress-bar-fill {
  height: 100%;
  background: var(--vm-gradiente);
  border-radius: 4px;
}

.course-progress-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-secondary);
  width: 80px;
  text-align: right;
}

.sanguijuela-list { list-style: none; }

.sanguijuela-item {
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sanguijuela-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--color-otra);
  background: rgba(192,57,43,0.1);
  padding: 2px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}

.sanguijuela-text {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  flex: 1;
}

/* === SETTINGS PAGE === */
.settings-container {
  max-width: 560px;
  margin: 24px auto;
  padding: 0 16px;
}

.settings-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 24px;
  text-align: center;
}

.settings-group {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 16px;
}

.settings-group-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text);
  margin-bottom: 16px;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.setting-row:last-child { border-bottom: none; }

.setting-label {
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  color: var(--text);
}

.setting-description {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 2px;
}

.setting-options {
  display: flex;
  gap: 6px;
}

.setting-option {
  padding: 6px 14px;
  border: 2px solid var(--border);
  border-radius: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 600;
  font-size: 0.8rem;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.setting-option.active {
  border-color: var(--vm-rojo);
  color: var(--vm-rojo);
  background: rgba(255, 45, 51, 0.05);
}

.btn-danger {
  background: rgba(192,57,43,0.08);
  border: 2px solid var(--color-otra);
  color: var(--color-otra);
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-danger:hover { background: var(--color-otra); color: #fff; }

/* === LOGIN PAGE === */
.login-container {
  max-width: 400px;
  margin: 60px auto;
  padding: 0 16px;
}

.login-card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 8px 40px var(--shadow-heavy);
  border: 1px solid var(--border);
}

.login-card svg { height: 48px; width: 48px; margin-bottom: 20px; }

.login-title {
  font-family: 'DM Sans', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text);
  margin-bottom: 6px;
}

.login-subtitle {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 24px;
}

.login-input {
  width: 100%;
  padding: 14px;
  border: 2px solid var(--border);
  border-radius: var(--radius-md);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.3rem;
  text-align: center;
  letter-spacing: 4px;
  text-transform: uppercase;
  background: var(--card-bg);
  color: var(--text);
  margin-bottom: 16px;
  transition: border-color 0.2s;
}

.login-input:focus {
  outline: none;
  border-color: var(--vm-rojo);
}

.login-error {
  font-size: 0.85rem;
  color: var(--color-otra);
  margin-top: 12px;
  display: none;
}

.login-error.visible { display: block; }

/* === MOBILE === */
@media (max-width: 768px) {
  .flashcard-front-inner,
  .flashcard-back-inner { padding: 24px 20px; }
  .flashcard-pregunta { font-size: 1.1rem; }
  .flashcard-respuesta { font-size: 1.1rem; }
  .flashcard-actions { grid-template-columns: 1fr 1fr; gap: 8px; }
  .study-subheader { padding: 8px 12px; }
  .study-subheader-center { font-size: 0.75rem; }
  .course-progress-name { width: 120px; font-size: 0.7rem; }
  .fc-nav-btn { padding: 8px 16px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .hero { padding: 28px 16px 36px; }
  .hero-title { font-size: 1.8rem; }
  .today-panel { padding: 24px 18px; }
  .today-breakdown { gap: 16px; }
  .study-layout { padding: 16px 12px 24px; gap: 12px; }
  .flashcard-pregunta { font-size: 1rem; }
  .flashcard-actions { grid-template-columns: 1fr 1fr; gap: 6px; }
  .flashcard-actions .btn { padding: 10px; font-size: 0.8rem; }
  .results-meta { gap: 20px; }
  .forecast { gap: 4px; }
  .setting-options { flex-wrap: wrap; }
  .fc-nav { gap: 6px; }
  .fc-nav-btn { padding: 7px 12px; font-size: 0.75rem; gap: 4px; border-radius: 8px; }
  .fc-nav-info { font-size: 0.65rem; }
  .phoenix-bird svg { width: 24px; height: 24px; }
}