/* CSS Design System for Ain Shams Scholar Dashboard */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Cairo:wght@300;400;500;600;700;800&display=swap');
@import url('/components/cards.css');

:root {
  /* Light Theme Variables - Rebuilt for High Contrast */
  --bg-primary: #f8fafc; /* Slate 50 */
  --bg-secondary: #ffffff;
  --bg-secondary-rgb: 255, 255, 255;
  --card-bg: rgba(255, 255, 255, 0.9);
  --card-border: rgba(99, 102, 241, 0.1);
  --item-bg: rgba(15, 23, 42, 0.02); /* Slate 900 transparent */
  --text-primary: #0f172a; /* Slate 900 */
  --text-secondary: #475569; /* Slate 600 */
  --accent-primary: #4f46e5;
  --accent-primary-glow: rgba(79, 70, 229, 0.12);
  --accent-secondary: #06b6d4;
  --accent-secondary-glow: rgba(6, 182, 212, 0.08);
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --card-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  --header-bg: rgba(255, 255, 255, 0.85);
  --glass-blur: 16px;
  
  --font-en: 'Outfit', sans-serif;
  --font-ar: 'Cairo', sans-serif;
}

[data-theme="dark"] {
  /* Dark Theme Variables */
  --bg-primary: #0b0f19;
  --bg-secondary: #111827;
  --bg-secondary-rgb: 17, 24, 39;
  --card-bg: rgba(17, 24, 39, 0.65);
  --card-border: rgba(255, 255, 255, 0.06);
  --item-bg: rgba(255, 255, 255, 0.02);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-primary: #6366f1;
  --accent-primary-glow: rgba(99, 102, 241, 0.35);
  --accent-secondary: #06b6d4;
  --accent-secondary-glow: rgba(6, 182, 212, 0.3);
  --success: #10b981;
  --warning: #fbbf24;
  --danger: #f87171;
  --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  --header-bg: rgba(17, 24, 39, 0.8);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-en);
  min-height: 100vh;
  padding-bottom: 40px;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-glow-1, .bg-glow-2 {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(160px);
  z-index: -1;
  opacity: 0.15;
  pointer-events: none;
}
.bg-glow-1 {
  background: radial-gradient(circle, var(--accent-primary) 0%, transparent 70%);
  top: -100px;
  right: -100px;
}
.bg-glow-2 {
  background: radial-gradient(circle, var(--accent-secondary) 0%, transparent 70%);
  bottom: 100px;
  left: -100px;
}

/* Header Section */
header {
  position: sticky;
  top: 0;
  background-color: var(--header-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--card-border);
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  box-shadow: 0 4px 20px rgba(0,0,0,0.02);
}

.brand {
  display: flex;
  align-items: center;
  gap: 15px;
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 4px 15px var(--accent-primary-glow);
  animation: pulse 3s infinite alternate;
}

.brand-text h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.brand-text p {
  font-size: 12px;
  color: var(--text-secondary);
}

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Styled Buttons */
.btn {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  color: var(--text-primary);
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
}

.btn:hover {
  background-color: var(--bg-secondary);
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--accent-primary-glow);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #4338ca);
  color: white;
  border: none;
  box-shadow: 0 4px 15px var(--accent-primary-glow);
}
.btn-primary:hover {
  background: linear-gradient(135deg, #4f46e5, var(--accent-primary));
  color: white;
  box-shadow: 0 6px 20px var(--accent-primary-glow);
}

.theme-toggle-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* Dashboard Grid Layout */
.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 30px 40px;
}

.kpi-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-bottom: 24px;
}

.kpi-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: linear-gradient(to bottom, var(--accent-primary), var(--accent-secondary));
}

.kpi-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.06);
}

.kpi-info h3 {
  font-size: 14px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 8px;
}

.kpi-value {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -1px;
}

.kpi-icon {
  width: 48px;
  height: 48px;
  background-color: var(--accent-primary-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary);
  font-size: 22px;
}

/* Chart Grid System */
.grid-row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  margin-bottom: 24px;
}

.col-6 {
  grid-column: span 6;
}

.col-12 {
  grid-column: span 12;
}

/* Card Styling */
.chart-card {
  background-color: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  box-shadow: var(--card-shadow);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  padding: 24px;
  display: flex;
  flex-direction: column;
  height: 460px;
  position: relative;
}

.chart-card.height-large {
  height: 580px;
}

.chart-card:hover {
  box-shadow: 0 12px 40px rgba(0,0,0,0.08);
}

.chart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.chart-title h2 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.chart-title p {
  font-size: 12px;
  color: var(--text-secondary);
  margin-top: 2px;
}

.chart-container {
  flex-grow: 1;
  width: 100%;
  height: 100%;
  min-height: 250px;
}

/* Loading overlays */
.loading-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(var(--bg-secondary-rgb), 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 10;
  border-radius: 20px;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--card-border);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s infinite linear;
  margin-bottom: 12px;
}

/* Animations */
@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes pulse {
  0% { box-shadow: 0 4px 15px var(--accent-primary-glow); }
  100% { box-shadow: 0 4px 25px rgba(99, 102, 241, 0.6); }
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .col-6 {
    grid-column: span 12;
  }
}

@media (max-width: 768px) {
  header {
    padding: 15px 20px;
    flex-direction: column;
    gap: 15px;
    align-items: stretch;
  }
  
  .brand {
    justify-content: center;
  }
  
  .actions {
    justify-content: center;
  }
  
  .container {
    padding: 20px;
  }
}

/* Global Navigation Title/Name links styling */
.doc-title-link {
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.2s ease;
  cursor: pointer;
}

.doc-title-link:hover {
  color: var(--accent-primary) !important;
  text-decoration: underline;
}