/*
  EduConnect Kerala Design System
  Inspired by Railway with Purple Theme
*/

/* ============================================
   CSS Variables
   ============================================ */
:root {
  /* Primary Colors - Railway Purple Theme */
  --color-primary: #7b0cd0;
  --color-primary-dark: #4b0390;
  --color-primary-light: #9b4ed9;
  --color-primary-lighter: #f3e5ff;
  --color-accent-pink: #d946ef;
  --color-accent-blue: #6366f1;

  /* Gradients - Multi-tone Purple */
  --gradient-primary: linear-gradient(135deg, #7b0cd0 0%, #d946ef 50%, #6366f1 100%);
  --gradient-primary-hover: linear-gradient(135deg, #8b1ce0 0%, #e056f5 50%, #7376f8 100%);
  --gradient-hero: linear-gradient(180deg, rgba(123, 12, 208, 0.15) 0%, rgba(217, 70, 239, 0.1) 50%, rgba(99, 102, 241, 0.05) 100%);
  --gradient-button: linear-gradient(135deg, #7b0cd0 0%, #d946ef 100%);
  --gradient-button-hover: linear-gradient(135deg, #d946ef 0%, #7b0cd0 100%);
  --gradient-dark: linear-gradient(135deg, #4b0390 0%, #7e22ce 100%);

  /* Status Colors */
  --color-success: #10B981;
  --color-success-light: #D1FAE5;
  --color-warning: #F59E0B;
  --color-warning-light: #FEF3C7;
  --color-danger: #EF4444;
  --color-danger-light: #FEE2E2;
  --color-info: #3B82F6;
  --color-info-light: #DBEAFE;

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-gray-50: #F9FAFB;
  --color-gray-100: #F3F4F6;
  --color-gray-200: #E5E7EB;
  --color-gray-300: #D1D5DB;
  --color-gray-400: #9CA3AF;
  --color-gray-500: #6B7280;
  --color-gray-600: #4B5563;
  --color-gray-700: #374151;
  --color-gray-800: #1F2937;
  --color-gray-900: #111827;

  /* Background Colors - Dark Theme */
  --bg-primary: #FFFFFF;
  --bg-secondary: #0A0A0A;
  --bg-tertiary: #1A1A1A;
  --bg-card: #FFFFFF;

  /* Text Colors */
  --text-primary: #111827;
  --text-secondary: #6B7280;
  --text-tertiary: #9CA3AF;
  --text-inverse: #FFFFFF;

  /* Border */
  --border-color: #E5E7EB;
  --border-color-dark: #2A2A2A;
  --border-radius: 12px;
  --border-radius-sm: 8px;
  --border-radius-lg: 16px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-base: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;
  --font-size-4xl: 36px;
  --font-size-5xl: 48px;

  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;

  /* Layout */
  --sidebar-width: 280px;
  --header-height: 72px;
  --container-max-width: 1440px;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* ============================================
   Reset & Base Styles
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-secondary);
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ============================================
   Buttons
   ============================================ */
.btn,
button.btn-primary,
button.btn-secondary,
button.btn-ghost,
button.btn-outline,
a.btn-primary,
a.btn-secondary,
a.btn-ghost,
a.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--border-radius-sm);
  border: none;
  outline: none;
  cursor: pointer;
  transition: all 0.15s ease;
  text-decoration: none;
  white-space: nowrap;
  box-sizing: border-box;
}

.btn:focus,
button:focus,
a.btn:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(123, 12, 208, 0.1);
}

.btn-primary,
button.btn-primary,
a.btn-primary {
  background: var(--gradient-button);
  color: #FFFFFF !important;
  border: none;
  box-shadow: 0 4px 12px rgba(123, 12, 208, 0.25);
  transition: all 0.3s ease;
}

.btn-primary:hover,
button.btn-primary:hover,
a.btn-primary:hover {
  background: var(--gradient-button-hover);
  color: #FFFFFF !important;
  box-shadow: 0 8px 20px rgba(217, 70, 239, 0.4);
  transform: translateY(-2px);
}

.btn-primary:active,
button.btn-primary:active,
a.btn-primary:active {
  transform: translateY(0);
  color: #FFFFFF !important;
}

.btn-primary:visited,
button.btn-primary:visited,
a.btn-primary:visited {
  color: #FFFFFF !important;
}

.btn-primary:focus,
button.btn-primary:focus,
a.btn-primary:focus {
  color: #FFFFFF !important;
}

.btn-secondary,
button.btn-secondary,
a.btn-secondary {
  background: #1A1A1A;
  color: #FFFFFF;
  border: 1px solid #2A2A2A;
}

.btn-secondary:hover,
button.btn-secondary:hover,
a.btn-secondary:hover {
  background: #2A2A2A;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline,
button.btn-outline,
a.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-outline:hover,
button.btn-outline:hover,
a.btn-outline:hover {
  background: var(--color-primary);
  color: #FFFFFF;
}

.btn-ghost,
button.btn-ghost,
a.btn-ghost {
  background: transparent;
  color: #9CA3AF;
  border: none;
}

.btn-ghost:hover,
button.btn-ghost:hover,
a.btn-ghost:hover {
  background: #1A1A1A;
  color: #FFFFFF;
}

.btn-sm,
button.btn-sm,
a.btn-sm {
  padding: 8px 16px;
  font-size: var(--font-size-sm);
}

.btn-lg,
button.btn-lg,
a.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-lg);
}

.btn-icon,
button.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  background: transparent;
  border: none;
}

.btn-icon:hover,
button.btn-icon:hover {
  background: #1A1A1A;
}

.btn-icon svg {
  color: #9CA3AF;
}

.btn-icon:hover svg {
  color: #FFFFFF;
}

/* Ensure all gradient backgrounds and colored backgrounds have white text */
button[style*="gradient"],
a[style*="gradient"],
.btn[style*="gradient"],
[style*="linear-gradient"] button,
[style*="linear-gradient"] a,
button[style*="background"],
a[style*="background"],
.btn[style*="background"],
.badge[style*="background"],
div[style*="background: linear-gradient"],
span[style*="background: linear-gradient"],
div[style*="background: rgb"],
span[style*="background: rgb"],
div[style*="background: #"],
span[style*="background: #"],
.institution-badge,
.verified-badge,
.ownership-badge,
.international-badge,
.news-category-badge,
.news-priority-badge {
  color: #FFFFFF !important;
}

/* ============================================
   Cards
   ============================================ */
.card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--border-color);
}

.card-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  margin-bottom: 0;
}

.card-body {
  padding: 0;
}

.card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

/* ============================================
   Forms
   ============================================ */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: var(--font-size-base);
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-help {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--text-tertiary);
  margin-top: var(--spacing-xs);
}

.form-error {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  margin-top: var(--spacing-xs);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table thead {
  background: var(--bg-tertiary);
}

.table th {
  padding: 16px;
  text-align: left;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table td {
  padding: 16px;
  border-top: 1px solid var(--border-color);
}

.table tbody tr {
  transition: background var(--transition-fast);
}

.table tbody tr:hover {
  background: var(--bg-secondary);
}

/* ============================================
   Badges
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary { background: var(--color-primary-lighter); color: var(--color-primary-dark) !important; }
.badge-success { background: var(--color-success-light); color: var(--color-success) !important; }
.badge-warning { background: var(--color-warning-light); color: var(--color-warning) !important; }
.badge-danger { background: var(--color-danger-light); color: var(--color-danger) !important; }
.badge-info { background: var(--color-info-light); color: var(--color-info) !important; }

/* Additional badge styles with dark backgrounds */
.badge-primary-dark { background: var(--color-primary); color: #FFFFFF !important; }
.badge-success-dark { background: var(--color-success); color: #FFFFFF !important; }
.badge-warning-dark { background: var(--color-warning); color: #FFFFFF !important; }
.badge-danger-dark { background: var(--color-danger); color: #FFFFFF !important; }
.badge-info-dark { background: var(--color-info); color: #FFFFFF !important; }

/* ============================================
   Stats Cards
   ============================================ */
.stat-card {
  background: var(--bg-primary);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-lg);
  transition: all var(--transition-base);
}

.stat-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  font-weight: var(--font-weight-medium);
  margin-bottom: var(--spacing-xs);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  color: var(--text-primary);
  margin-bottom: var(--spacing-xs);
}

.stat-change {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
}

.stat-change.positive { color: var(--color-success); }
.stat-change.negative { color: var(--color-danger); }

/* ============================================
   Utility Classes
   ============================================ */
.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.text-center { text-align: center; }
.text-right { text-align: right; }

.mt-xs { margin-top: var(--spacing-xs); }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-xs { margin-bottom: var(--spacing-xs); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }
.p-xl { padding: var(--spacing-xl); }

/* ============================================
   Text Color Fixes for Colored Backgrounds
   ============================================ */
/* Ensure all buttons with primary/dark backgrounds have white text */
button[class*="btn"],
a[class*="btn"],
.action-btn,
button[class*="primary"],
a[class*="primary"],
button[style*="#7b0cd0"],
button[style*="#d946ef"],
button[style*="#C0293A"],
button[style*="#EF4444"],
button[style*="#10B981"],
button[style*="#F59E0B"],
button[style*="#3B82F6"],
button[style*="background: #"],
a[style*="background: #"],
span[class*="-badge"],
div[class*="-badge"] {
  color: #FFFFFF !important;
}

/* Exception for transparent backgrounds and light backgrounds */
button[style*="background: transparent"],
a[style*="background: transparent"],
button[style*="background: #F"],
a[style*="background: #F"],
.btn-ghost,
.btn-outline {
  color: inherit !important;
}

/* Ensure outline buttons maintain proper color */
.btn-outline {
  color: var(--color-primary) !important;
}

.btn-outline:hover {
  color: #FFFFFF !important;
}

/* Ensure ghost buttons maintain proper color */
.btn-ghost {
  color: #9CA3AF !important;
}

.btn-ghost:hover {
  color: #FFFFFF !important;
}

/* ============================================
   Responsive
   ============================================ */
@media (max-width: 768px) {
  :root {
    --font-size-5xl: 36px;
    --font-size-4xl: 30px;
    --font-size-3xl: 24px;
  }

  .container {
    padding: 0 var(--spacing-md);
  }
}