/* AcidBase Mastery — Dashboard & Progress Styles */

/* ── Dashboard Layout ────────────────────────────────── */

.dash-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.dash-stat-card {
  padding: 2rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  position: relative;
  overflow: hidden;
}

.dash-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--teal), transparent);
}

.dash-stat-card.accent::before {
  background: linear-gradient(90deg, var(--accent), transparent);
}

.dash-stat-card.coral::before {
  background: linear-gradient(90deg, var(--coral), transparent);
}

.dash-stat-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.75rem;
}

.dash-stat-value {
  font-size: 2rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1;
}

.dash-stat-value .unit {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-dim);
  margin-left: 0.25rem;
}

.dash-stat-sub {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  margin-top: 0.5rem;
  letter-spacing: 0.05em;
}

/* ── Streak Display ──────────────────────────────────── */

.streak-display {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  margin-bottom: 2rem;
}

.streak-flame {
  font-size: 1.8rem;
  line-height: 1;
}

.streak-info {
  flex: 1;
}

.streak-count {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent);
}

.streak-count .streak-label {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text);
  margin-left: 0.25rem;
}

.streak-best {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

.streak-dots {
  display: flex;
  gap: 0.35rem;
}

.streak-dot {
  width: 8px;
  height: 8px;
  border: 1px solid var(--surface-border);
  background: transparent;
  transition: all 0.3s ease;
}

.streak-dot.active {
  background: var(--accent);
  border-color: var(--accent);
}

.streak-dot.today {
  border-color: var(--teal);
}

/* ── Dashboard Grid ──────────────────────────────────── */

.dash-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 4rem;
}

.dash-section {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
}

.dash-section-title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--surface-border);
}

/* ── Suggested Study ─────────────────────────────────── */

.suggested-topic {
  padding: 1.25rem;
  background: rgba(196, 163, 90, 0.03);
  border: 1px solid rgba(196, 163, 90, 0.15);
  margin-bottom: 1rem;
}

.suggested-topic-label {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.suggested-topic-name {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.suggested-topic-reason {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* ── Activity Feed ───────────────────────────────────── */

.activity-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.activity-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.activity-item:last-child {
  border-bottom: none;
}

.activity-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  font-size: 0.7rem;
  flex-shrink: 0;
}

.activity-text {
  flex: 1;
}

.activity-title {
  font-size: 0.8rem;
  color: var(--text);
  margin-bottom: 0.15rem;
}

.activity-meta {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.activity-score {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
}

.activity-score.good { color: var(--correct); }
.activity-score.ok { color: var(--accent); }
.activity-score.weak { color: var(--incorrect); }

/* ── Due Reviews ─────────────────────────────────────── */

.due-reviews-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  background: rgba(90, 138, 135, 0.03);
  border: 1px solid rgba(90, 138, 135, 0.15);
  margin-bottom: 1rem;
}

.due-reviews-count {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--teal);
}

.due-reviews-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ── Quick Actions ───────────────────────────────────── */

.quick-actions {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 2rem;
}

.quick-action {
  padding: 1.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  text-align: center;
  text-decoration: none;
  color: inherit;
  transition: all var(--transition);
}

.quick-action:hover {
  background: var(--surface-hover);
  border-color: var(--teal);
  transform: translateY(-2px);
}

.quick-action-title {
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.35rem;
}

.quick-action-desc {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

/* ── Empty State ─────────────────────────────────────── */

.dash-empty {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--text-dim);
}

.dash-empty-text {
  font-size: 0.8rem;
  line-height: 1.7;
  margin-bottom: 1rem;
}

/* ── Progress Page ───────────────────────────────────── */

.progress-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

.progress-panel {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
}

.progress-panel.full-width {
  grid-column: 1 / -1;
}

.progress-panel-title {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.5rem;
}

/* ── Topic Mastery Grid ──────────────────────────────── */

.mastery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

.mastery-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mastery-topic-name {
  font-size: 0.75rem;
  color: var(--text);
  min-width: 180px;
  flex-shrink: 0;
}

.mastery-bar-track {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.03);
  position: relative;
  overflow: hidden;
}

.mastery-bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: var(--teal);
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.mastery-bar-fill.developing { background: var(--coral); }
.mastery-bar-fill.proficient { background: var(--teal); }
.mastery-bar-fill.mastered { background: var(--accent); }
.mastery-bar-fill.novice { background: var(--text-dim); }

.mastery-percent {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  color: var(--text-dim);
  min-width: 40px;
  text-align: right;
}

/* ── Chart Container ─────────────────────────────────── */

.chart-container {
  position: relative;
  height: 250px;
  width: 100%;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ── Exam Readiness ──────────────────────────────────── */

.exam-ready-card {
  padding: 2rem;
  background: var(--surface);
  border: 1px solid var(--surface-border);
  text-align: center;
  margin-bottom: 3rem;
}

.exam-ready-score {
  font-size: 3rem;
  font-weight: 600;
  line-height: 1;
  margin-bottom: 0.5rem;
}

.exam-ready-score.ready { color: var(--correct); }
.exam-ready-score.almost { color: var(--accent); }
.exam-ready-score.needs-work { color: var(--coral); }

.exam-ready-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.exam-ready-details {
  font-size: 0.8rem;
  color: var(--text-dim);
  line-height: 1.6;
}

/* ── Difficulty Breakdown ────────────────────────────── */

.difficulty-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.difficulty-card {
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--surface-border);
  text-align: center;
}

.difficulty-level {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.difficulty-pct {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

.difficulty-detail {
  font-family: var(--font-mono);
  font-size: 0.55rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* ── Responsive ──────────────────────────────────────── */

@media (max-width: 900px) {
  .dash-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .dash-grid,
  .progress-grid {
    grid-template-columns: 1fr;
  }

  .quick-actions {
    grid-template-columns: 1fr;
  }

  .difficulty-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .dash-stats {
    grid-template-columns: 1fr;
  }

  .mastery-row {
    flex-wrap: wrap;
  }

  .mastery-topic-name {
    min-width: 100%;
    margin-bottom: 0.25rem;
  }
}