/* ========== Splash Screen ========== */
.splash {
  background: linear-gradient(135deg, #4A90D9 0%, #6C5CE7 50%, #A29BFE 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  color: white;
  text-align: center;
  overflow: hidden;
  position: relative;
}

.splash__title {
  font-size: var(--font-size-xxl);
  font-weight: 900;
  text-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.splash__subtitle {
  font-size: var(--font-size-lg);
  opacity: 0.9;
}

.splash__mascot {
  width: 200px;
  height: 200px;
}

.splash__particles {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.splash__particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0.3;
  animation: float 6s ease-in-out infinite;
}

/* ========== Profile Select ========== */
.profile-select {
  background: var(--bg-primary);
  min-height: 100vh;
  padding: var(--space-xl);
}

.profile-select__title {
  font-size: var(--font-size-xl);
  text-align: center;
  margin-bottom: var(--space-xl);
  color: var(--color-primary);
}

.profile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-lg);
  max-width: 800px;
  margin: 0 auto;
}

.profile-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border: 3px solid transparent;
}

.profile-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.profile-card--add {
  border: 3px dashed #CCC;
  background: transparent;
  box-shadow: none;
  color: var(--text-secondary);
}

.profile-card--add:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.profile-card__name {
  font-size: var(--font-size-md);
  font-weight: 700;
}

.profile-card__stars {
  font-size: var(--font-size-sm);
  color: var(--color-accent);
}

/* ========== Dashboard ========== */
.dashboard {
  background: var(--bg-primary);
  min-height: 100vh;
  padding: var(--space-lg);
}

.dashboard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) 0;
  margin-bottom: var(--space-xl);
}

.dashboard__welcome {
  font-size: var(--font-size-lg);
  font-weight: 700;
}

.dashboard__level {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.lesson-path {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  max-width: 600px;
  margin: 0 auto;
  position: relative;
}

.lesson-path__connector {
  width: 4px;
  height: 40px;
  background: #E0E0E0;
  border-radius: 2px;
}

.lesson-path__connector.completed {
  background: var(--color-success);
}

.lesson-card {
  width: 100%;
  max-width: 400px;
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-lg);
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  cursor: pointer;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  border-left: 6px solid transparent;
  position: relative;
}

.lesson-card:hover:not(.locked) {
  transform: translateX(8px);
  box-shadow: var(--shadow-lg);
}

.lesson-card.locked {
  opacity: 0.5;
  cursor: not-allowed;
}

.lesson-card.completed {
  border-left-color: var(--color-success);
}

.lesson-card.current {
  border-left-color: var(--color-primary);
  box-shadow: var(--shadow-glow);
}

.lesson-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.lesson-card__info {
  flex: 1;
}

.lesson-card__title {
  font-size: var(--font-size-md);
  font-weight: 700;
}

.lesson-card__subtitle {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.lesson-card__progress {
  margin-top: var(--space-sm);
}

.lesson-card__check {
  color: var(--color-success);
  font-size: 1.5rem;
}

/* Nav buttons at bottom of dashboard */
.dashboard__nav {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xxl);
  flex-wrap: wrap;
}

/* ========== Lesson Screen ========== */
.lesson-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.lesson-screen__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-toolbar);
}

.lesson-screen__phase-dots {
  display: flex;
  gap: var(--space-sm);
}

.phase-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #E0E0E0;
  transition: background var(--transition-normal);
}

.phase-dot.completed {
  background: var(--color-success);
}

.phase-dot.current {
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(74, 144, 217, 0.5);
}

.lesson-screen__content {
  flex: 1;
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* Learn mode slides */
.learn-slide {
  max-width: 700px;
  width: 100%;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.learn-slide__visual {
  width: 100%;
  max-width: 500px;
  aspect-ratio: 4/3;
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.learn-slide__text {
  font-size: var(--font-size-lg);
  font-weight: 700;
  line-height: 1.4;
}

.learn-slide__nav {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.slide-dots {
  display: flex;
  gap: var(--space-xs);
}

.slide-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #DDD;
  transition: background var(--transition-fast);
}

.slide-dot.active {
  background: var(--color-primary);
  width: 24px;
  border-radius: 5px;
}

/* ========== Free Play Lab ========== */
.free-play {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.free-play__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-card);
  box-shadow: var(--shadow-sm);
}

.free-play__canvas {
  flex: 1;
  position: relative;
}

/* ========== Reward Screen ========== */
.reward-screen {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  text-align: center;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: var(--space-xl);
}

.reward-screen__title {
  font-size: var(--font-size-xxl);
  font-weight: 900;
}

.reward-screen__stars {
  font-size: 4rem;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.reward-screen__badge {
  width: 120px;
  height: 120px;
  border-radius: var(--radius-round);
  background: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 30px rgba(255, 215, 0, 0.5);
}

/* ========== Parent Dashboard ========== */
.parent-dashboard {
  min-height: 100vh;
  background: var(--bg-primary);
  padding: var(--space-xl);
}

.parent-dashboard__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.parent-dashboard__title {
  font-size: var(--font-size-xl);
  font-weight: 900;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.stat-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  text-align: center;
  box-shadow: var(--shadow-card);
}

.stat-card__value {
  font-size: var(--font-size-xxl);
  font-weight: 900;
  color: var(--color-primary);
}

.stat-card__label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-top: var(--space-xs);
}

.lesson-progress-table {
  width: 100%;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.lesson-progress-row {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  padding: var(--space-md) var(--space-lg);
  align-items: center;
  border-bottom: 1px solid #F0F0F0;
}

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

.lesson-progress-row--header {
  background: var(--bg-dark);
  color: white;
  font-weight: 700;
  font-size: var(--font-size-sm);
}