:root {
  /* Color Palette - Bowen University Inspired (Navy, Gold, White) */
  --primary: #002147; /* Deep Navy */
  --secondary: #D4AF37; /* Metallic Gold */
  --accent: #E5B80B;
  --bg-app: #F8FAFC;
  --bg-card: #FFFFFF;
  --text-main: #1E293B;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --success: #10B981;
  --warning: #F59E0B;
  
  /* Spacing & Radii */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --spacing-xs: 8px;
  --spacing-sm: 12px;
  --spacing-md: 20px;
  --spacing-lg: 32px;
  
  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1);
  --shadow-lg: 0 20px 25px -5px rgba(0,0,0,0.1);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  overflow-x: hidden;
}

/* Layout Utilities */
.mobile-container {
  width: 100%;
  max-width: 100vw;
  margin: 0 auto;
  min-height: 100vh;
  background: var(--bg-app);
  position: relative;
  display: flex;
  flex-direction: column;
}

@media (min-width: 768px) {
  .mobile-container {
    max-width: 100%;
    flex-direction: row;
  }
  
  .app-header {
    display: none; /* Desktop will use sidebar */
  }

  .sidebar {
    display: flex !important;
    width: 260px;
    height: 100vh;
    background: var(--primary);
    color: white;
    flex-direction: column;
    padding: var(--spacing-lg) var(--spacing-md);
    position: sticky;
    top: 0;
  }

  .content-area {
    padding: var(--spacing-lg) 5%;
    max-width: 1200px;
    margin: 0 auto;
  }

  .bottom-nav {
    display: none;
  }

  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .actions-grid {
    grid-template-columns: repeat(6, 1fr);
  }
  
  .dashboard-grid-layout {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
  }

  .main-content-scroll {
    overflow-y: auto;
    flex-grow: 1;
  }
}

.deadline-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
}

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

.deadline-name {
  font-weight: 500;
}

.deadline-date {
  font-weight: 700;
  color: var(--text-muted);
}

.deadline-date.urgent {
  color: var(--warning);
}

.sidebar {
  display: none;
}

.sidebar-logo {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: var(--spacing-lg);
}

.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.sidebar-link {
  color: rgba(255,255,255,0.7);
  text-decoration: none;
  padding: 12px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  transition: all 0.2s;
}

.sidebar-link:hover, .sidebar-link.active {
  background: rgba(255,255,255,0.1);
  color: white;
}

.sidebar-link svg {
  width: 20px;
}

.desktop-header {
  display: none;
}

@media (min-width: 768px) {
  .desktop-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
  }
}

/* Header */
.app-header {
  padding: var(--spacing-md);
  background: var(--primary);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 2px solid var(--secondary);
}

.user-profile-brief {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.avatar-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--secondary);
  border: 2px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  color: var(--primary);
}

.welcome-text {
  font-size: 0.85rem;
  opacity: 0.9;
}

.user-name {
  font-weight: 700;
  display: block;
}

/* Dashboard Sections */
.content-area {
  padding: var(--spacing-md);
  flex-grow: 1;
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  transition: transform 0.2s ease;
}

.card:active {
  transform: scale(0.98);
}

.card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.stat-box {
  background: white;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--secondary);
  box-shadow: var(--shadow-sm);
}

.stat-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.stat-value {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--primary);
}

/* Action Icons Grid */
.actions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.action-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  color: var(--text-main);
}

.icon-circle {
  width: 50px;
  height: 50px;
  background: white;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xs);
  box-shadow: var(--shadow-md);
  color: var(--primary);
  border: 1px solid var(--border-color);
}

.action-label {
  font-size: 0.75rem;
  font-weight: 600;
}

/* Course Progress */
.progress-container {
  margin-top: var(--spacing-sm);
}

.progress-bar-bg {
  height: 8px;
  background: #E2E8F0;
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 4px;
}

/* Bottom Navigation */
.bottom-nav {
  position: sticky;
  bottom: 0;
  background: white;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-around;
  padding: var(--spacing-sm) 0;
  padding-bottom: calc(var(--spacing-sm) + env(safe-area-inset-bottom));
  z-index: 100;
}

.nav-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 600;
}

.nav-link.active {
  color: var(--primary);
}

.nav-link svg {
  margin-bottom: 4px;
}

/* Notifications Badge */
.badge {
  background: #EF4444;
  color: white;
  font-size: 0.6rem;
  padding: 2px 6px;
  border-radius: 10px;
  position: absolute;
  top: -5px;
  right: -5px;
}

.icon-relative {
  position: relative;
}

/* Section Header */
.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.view-all {
  font-size: 0.8rem;
  color: var(--secondary);
  font-weight: 700;
  text-decoration: none;
}

/* Timeline/Recent */
.timeline-item {
  display: flex;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  position: relative;
}

.timeline-item:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 7px;
  top: 20px;
  bottom: 0;
  width: 2px;
  background: var(--border-color);
}

.timeline-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--secondary);
  border: 3px solid white;
  z-index: 1;
  flex-shrink: 0;
}

.timeline-content {
  flex-grow: 1;
}

.timeline-title {
  font-weight: 700;
  font-size: 0.9rem;
}

.timeline-time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* Buttons */
.btn-primary {
  background: var(--primary);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 700;
  width: 100%;
  display: block;
  text-align: center;
  text-decoration: none;
  margin-top: var(--spacing-md);
}

.portal-brand {
  font-weight: 900;
  letter-spacing: -0.5px;
  font-size: 1.2rem;
}

.portal-brand span {
  color: var(--secondary);
}

.student-info-strip {
  background: var(--primary);
  color: white;
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  border-bottom: 4px solid var(--secondary);
}

.info-item {
  flex: 1;
  min-width: 140px;
}

.info-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  opacity: 0.7;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.info-value {
  font-size: 0.9rem;
  font-weight: 600;
}

.desktop-user-profile {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.session-badge {
  background: rgba(212, 175, 55, 0.15);
  color: var(--secondary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
  border: 1px solid var(--secondary);
}

/* Cleanup for inline styles */
.brand-container {
  margin-bottom: var(--spacing-lg);
}

.matric-text {
  font-size: 0.8rem; 
  color: var(--text-muted);
}

.section-title {
  margin: 0;
}

.thesis-header {
  display: flex; 
  justify-content: space-between; 
  align-items: flex-end; 
  margin-bottom: 8px;
}

.thesis-title {
  font-weight: 700; 
  font-size: 0.9rem;
}

.thesis-due {
  font-size: 0.75rem; 
  color: var(--text-muted);
}

.thesis-percent {
  font-weight: 800; 
  color: var(--primary);
}

.btn-upload {
  margin-top: 20px; 
  font-size: 0.85rem; 
  padding: 10px;
}

.timeline-list {
  padding: 10px 5px;
}