/* modern-dashboard.css — Joftino-Style Glassmorphism */

/* ===== HERO HEADER ===== */
.fsn-hero {
  position: relative;
  padding: 24px 20px 32px;
  margin: -16px -16px 20px;
  border-radius: 0 0 32px 32px;
  overflow: hidden;
  background: var(--gradient-dark);
}

.fsn-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('../img/klassen/hero.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.25;
  filter: blur(2px);
}

.fsn-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,26,0.4) 0%, rgba(10,10,26,0.95) 100%);
}

.fsn-hero-content {
  position: relative;
  z-index: 1;
}

.fsn-hero-greeting {
  font-size: 14px;
  color: var(--text-tertiary);
  font-weight: 500;
  margin-bottom: 4px;
}

.fsn-hero-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 16px;
}

.fsn-hero-stats {
  display: flex;
  gap: 12px;
  margin-top: 16px;
}

.fsn-hero-stat {
  flex: 1;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 12px;
}

.fsn-hero-stat-num {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.fsn-hero-stat-label {
  font-size: 11px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  margin-top: 2px;
}

.fsn-trial-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(249, 115, 22, 0.15);
  border: 1px solid rgba(249, 115, 22, 0.3);
  color: var(--accent-orange);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 8px;
}

/* ===== KLASSEN CARDS ===== */
.fsn-section-title {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 24px 0 12px;
  padding: 0 4px;
}

.fsn-klassen-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.fsn-klasse-card {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  cursor: pointer;
  transition: all 300ms cubic-bezier(0.16, 1, 0.3, 1);
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  min-height: 200px;
  display: flex;
  flex-direction: column;
}

.fsn-klasse-card:active {
  transform: scale(0.97);
}

.fsn-klasse-image {
  position: relative;
  height: 100px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.fsn-klasse-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(13, 17, 23, 0.95) 100%);
}

.fsn-klasse-icon-overlay {
  position: absolute;
  top: 8px;
  right: 8px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.fsn-klasse-content {
  flex: 1;
  padding: 12px;
  display: flex;
  flex-direction: column;
}

.fsn-klasse-name {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 4px;
  line-height: 1.2;
}

.fsn-klasse-sub {
  font-size: 11px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
  line-height: 1.3;
}

.fsn-klasse-stats {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
}

.fsn-klasse-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 8px;
}

.fsn-klasse-badge-fragen {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-blue);
}

.fsn-klasse-badge-karten {
  background: rgba(168, 85, 247, 0.15);
  color: var(--accent-purple);
}

/* ===== FEATURE TILES (untere Sektion) ===== */
.fsn-features {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.fsn-feature {
  position: relative;
  padding: 16px;
  border-radius: 16px;
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  transition: all 200ms var(--ease-out);
  overflow: hidden;
}

.fsn-feature:active {
  transform: scale(0.98);
  background: var(--surface-hover);
}

.fsn-feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.fsn-feature-icon.gradient-yellow {
  background: linear-gradient(135deg, #eab308 0%, #f59e0b 100%);
}
.fsn-feature-icon.gradient-blue {
  background: var(--gradient-blue);
}
.fsn-feature-icon.gradient-green {
  background: var(--gradient-green);
}
.fsn-feature-icon.gradient-purple {
  background: var(--gradient-purple);
}

.fsn-feature-content {
  flex: 1;
  min-width: 0;
}

.fsn-feature-title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.fsn-feature-desc {
  font-size: 12px;
  color: var(--text-tertiary);
  line-height: 1.3;
}

.fsn-feature-arrow {
  color: var(--text-quaternary);
  font-size: 20px;
  flex-shrink: 0;
}

/* ===== KLASSEN-SEITE ===== */
.fsn-klasse-hero {
  position: relative;
  padding: 80px 20px 24px;
  margin: -16px -16px 20px;
  border-radius: 0 0 32px 32px;
  overflow: hidden;
}

.fsn-klasse-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.fsn-klasse-hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10,10,26,0.3) 0%, rgba(10,10,26,0.95) 100%);
}

.fsn-back-btn {
  position: absolute;
  top: 16px;
  left: 16px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  cursor: pointer;
  z-index: 10;
}

.fsn-klasse-hero-content {
  position: relative;
  z-index: 1;
}

.fsn-klasse-hero-title {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.fsn-klasse-hero-meta {
  font-size: 13px;
  color: var(--text-secondary);
}

.fsn-lernbereiche {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 16px;
}

.fsn-lernbereich {
  position: relative;
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px;
  cursor: pointer;
  transition: all 200ms var(--ease-out);
  overflow: hidden;
}

.fsn-lernbereich:active {
  transform: scale(0.97);
}

.fsn-lernbereich-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  margin-bottom: 8px;
}

.fsn-lernbereich-name {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 2px;
}

.fsn-lernbereich-sub {
  font-size: 11px;
  color: var(--text-tertiary);
}