/* ============================================
   EduFace AI — Page-Specific Styles
   ============================================ */

/* --- Landing --- */
.landing-page {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top right, rgba(37, 99, 235, 0.1), transparent 40%),
              radial-gradient(circle at bottom left, rgba(99, 102, 241, 0.1), transparent 40%),
              var(--bg-primary);
  overflow: hidden;
}

.landing-background-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.shape-blob {
  position: absolute;
  filter: blur(80px);
  opacity: 0.5;
  border-radius: 50%;
  animation: float-blob 10s ease-in-out infinite alternate;
}

.shape-blob.teal {
  background: var(--accent-teal);
  width: 400px;
  height: 400px;
  top: -100px;
  right: -100px;
}

.shape-blob.purple {
  background: var(--accent-purple);
  width: 300px;
  height: 300px;
  bottom: -50px;
  left: -100px;
  animation-delay: -5s;
}

@keyframes float-blob {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-30px, 50px) scale(1.1); }
}

.landing-content {
  position: relative;
  z-index: 1;
  max-width: 800px;
  text-align: center;
  padding: var(--space-xl);
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.6s ease-out;
}

.landing-logo-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 96px;
  height: 96px;
  border-radius: var(--radius-lg);
  background: var(--gradient-hero);
  margin-bottom: var(--space-xl);
  box-shadow: var(--shadow-glow-teal);
}

.landing-logo-container span {
  font-size: 3.5rem;
  color: white;
}

.landing-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-md);
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  color: transparent;
  line-height: 1.2;
}

.landing-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  margin-bottom: var(--space-2xl);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.6;
}

.landing-features {
  display: flex;
  justify-content: center;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
  flex-wrap: wrap;
}

.landing-feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-primary);
  font-weight: var(--font-weight-medium);
}

.landing-feature-item span {
  color: var(--accent-teal);
  background: var(--success-bg);
  padding: 4px;
  border-radius: 50%;
  font-size: 1.2rem;
}

/* --- Dashboard --- */
.dashboard-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); margin-bottom: var(--space-xl); }
.dashboard-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--space-lg); }
.chart-container { position: relative; height: 280px; }
.attendance-feed { max-height: 400px; overflow-y: auto; }

/* --- Live Attendance --- */
.live-grid { display: grid; grid-template-columns: 1fr 360px; gap: var(--space-lg); min-height: 520px; }
.camera-container {
  position: relative; background: #000; border-radius: var(--radius-lg);
  overflow: hidden; aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center;
}
.camera-container video { width: 100%; height: 100%; object-fit: cover; }
.camera-overlay {
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; pointer-events: none;
}
.face-guide {
  width: 220px; height: 280px; border: 3px dashed var(--accent-teal);
  border-radius: 50%; opacity: 0.5; animation: breathe 3s ease-in-out infinite;
}
.face-guide.detected { border-color: var(--success); border-style: solid; opacity: 1; animation: none; }
.face-guide.failed { border-color: var(--danger); border-style: solid; opacity: 1; }
.camera-status {
  position: absolute; bottom: var(--space-md); left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.7); backdrop-filter: blur(8px); padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full); font-size: var(--font-size-sm); color: var(--text-primary);
  display: flex; align-items: center; gap: var(--space-sm);
}
.camera-status-dot {
  width: 8px; height: 8px; border-radius: 50%; background: var(--success); animation: pulse 2s infinite;
}
.camera-status-dot.idle { background: var(--text-muted); }
.camera-status-dot.matching { background: var(--warning); }
.camera-status-dot.failed { background: var(--danger); animation: none; }
.confirm-panel { display: flex; flex-direction: column; gap: var(--space-lg); }
.confirm-card {
  background: var(--bg-glass); border: 1px solid var(--border-glass); border-radius: var(--radius-lg);
  padding: var(--space-xl); text-align: center; animation: fadeInUp 0.4s ease;
}
.confirm-card.success-state { border-color: rgba(16,185,129,0.3); }
.confirm-card.failed-state { border-color: rgba(239,68,68,0.3); }
.confirm-avatar {
  width: 80px; height: 80px; border-radius: var(--radius-full);
  margin: 0 auto var(--space-md); display: flex; align-items: center; justify-content: center;
  font-size: var(--font-size-2xl); font-weight: var(--font-weight-bold); color: white;
}
.confirm-name { font-size: var(--font-size-xl); font-weight: var(--font-weight-semibold); margin-bottom: var(--space-xs); }
.confirm-detail { font-size: var(--font-size-sm); color: var(--text-secondary); margin-bottom: var(--space-xs); }
.confirm-time { font-family: var(--font-mono); font-size: var(--font-size-2xl); color: var(--accent-teal); margin: var(--space-md) 0; }
.scan-log { flex: 1; overflow-y: auto; max-height: 300px; }

/* --- Students --- */
.student-status-enrolled { color: var(--success); }
.student-status-pending { color: var(--warning); }
.row-actions { position: relative; }

/* --- Enrollment --- */
.enrollment-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-md); }
.enrollment-form-section { display: flex; flex-direction: column; gap: var(--space-sm); }
.enrollment-camera-section { display: flex; flex-direction: column; gap: var(--space-sm); }
.sample-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 4px; }
.sample-slot {
  aspect-ratio: 1; border-radius: var(--radius-md); border: 2px dashed var(--border-glass);
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-tertiary); overflow: hidden; cursor: pointer; transition: all var(--transition-fast);
  position: relative;
}
.sample-slot:hover { border-color: var(--text-muted); }
.sample-slot.filled { border-style: solid; border-color: var(--success); }
.sample-slot.filled img { width: 100%; height: 100%; object-fit: cover; }
.sample-slot.active { border-color: var(--accent-teal); border-style: solid; box-shadow: var(--shadow-glow-teal); }
.sample-slot-check {
  position: absolute; top: 4px; right: 4px; width: 18px; height: 18px; border-radius: 50%;
  background: var(--success); color: white; display: flex; align-items: center; justify-content: center;
  font-size: 0.625rem;
}
.sample-slot-number { color: var(--text-muted); font-size: var(--font-size-lg); }
.pose-instruction {
  background: rgba(6,182,212,0.1); border: 1px solid rgba(6,182,212,0.2);
  border-radius: var(--radius-md); padding: var(--space-md); text-align: center;
  font-size: var(--font-size-sm); color: var(--accent-teal);
}

/* --- Reports --- */
.reports-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--space-lg); margin-bottom: var(--space-xl); }
.chart-toggle { display: flex; gap: 2px; background: var(--bg-tertiary); border-radius: var(--radius-sm); padding: 2px; }
.chart-toggle-btn {
  padding: 0.375rem 0.875rem; border-radius: var(--radius-sm); font-size: var(--font-size-xs);
  cursor: pointer; transition: all var(--transition-fast); color: var(--text-muted); background: none; border: none;
}
.chart-toggle-btn.active { background: var(--accent-teal); color: white; }
.highlight-row { background: var(--danger-bg) !important; }

/* --- Settings --- */
.settings-section { margin-bottom: var(--space-xl); }
.settings-section h3 { margin-bottom: var(--space-lg); font-size: var(--font-size-lg); }
.settings-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-md) 0; border-bottom: 1px solid var(--border-subtle);
}
.settings-row:last-child { border-bottom: none; }
.settings-row-label h4 { font-size: var(--font-size-sm); font-weight: var(--font-weight-medium); margin-bottom: 2px; }
.settings-row-label p { font-size: var(--font-size-xs); color: var(--text-muted); }
.settings-row-value input, .settings-row-value select { width: 200px; }
.status-indicator { display: flex; align-items: center; gap: var(--space-sm); font-size: var(--font-size-sm); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; }
.status-dot.online { background: var(--success); }
.status-dot.offline { background: var(--danger); }

/* --- Login --- */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-primary); }
.login-card {
  background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl); padding: var(--space-2xl); width: 100%; max-width: 420px;
}
.login-logo { text-align: center; margin-bottom: var(--space-xl); }
.login-logo-icon {
  width: 64px; height: 64px; border-radius: var(--radius-lg); background: var(--gradient-hero);
  display: flex; align-items: center; justify-content: center; font-size: 1.75rem; margin: 0 auto var(--space-md);
}

/* --- Responsive overrides --- */
@media (max-width: 1024px) {
  .dashboard-stats { grid-template-columns: repeat(2, 1fr); }
  .dashboard-grid { grid-template-columns: 1fr; }
  .live-grid { grid-template-columns: 1fr; }
  .enrollment-grid { grid-template-columns: 1fr; }
  .reports-stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .dashboard-stats { grid-template-columns: 1fr 1fr; }
  .reports-stats { grid-template-columns: 1fr 1fr; }
  .sample-grid { grid-template-columns: repeat(5, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .dashboard-stats { grid-template-columns: 1fr; }
  .reports-stats { grid-template-columns: 1fr; }
}