/* =============================================================================
   PassMCQ - Modern Educational Platform Styles
   Version: 2.0.0
   ============================================================================= */

@import "tailwindcss";

/* =============================================================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================================= */
:root {
    /* Brand Colors */
    --primary: #22c55e;
    --primary-hover: #16a34a;
    --primary-light: #dcfce7;
    --secondary: #3b82f6;
    --secondary-hover: #2563eb;
    --accent: #8b5cf6;
    
    /* Neutral Colors */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    /* Dark Mode Colors */
    --dark-bg: #0f172a;
    --dark-bg-secondary: #1e293b;
    --dark-bg-tertiary: #334155;
    --dark-border: #475569;
    --dark-text: #f1f5f9;
    --dark-text-muted: #94a3b8;
    
    /* Legacy Support */
    --dark_bg: #0f172a;
    --dark_bg_2: #1e293b;
    
    /* Semantic Colors */
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --info: #3b82f6;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
    --transition-slow: 300ms ease;
}

/* =============================================================================
   BASE STYLES
   ============================================================================= */
html {
    scroll-behavior: smooth;
}

[x-cloak] { 
    display: none !important; 
}

body {
    font-family: 'Inter', 'Poppins', system-ui, -apple-system, sans-serif;
    height: auto;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background-color: var(--gray-50);
    color: var(--gray-800);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

/* Dark mode body */
body.dark,
.dark body {
    background-color: var(--dark-bg);
    color: var(--dark-text);
}

/* =============================================================================
   TYPOGRAPHY - Font Face Definitions
   ============================================================================= */
@font-face {
    font-family: 'Inter';
    src: url('../font/Inter-Variable.ttf') format('truetype');
    font-weight: 100 900;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Poppins';
    src: url('../font/Poppins-Medium.ttf') format('truetype');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'Raleway';
    src: url('../font/Raleway.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

/* Font Classes */
.font-inter {
    font-family: 'Inter', system-ui, sans-serif;
}

.poppins {
    font-family: 'Poppins', sans-serif;
}

.raleway {
    font-family: 'Raleway', sans-serif;
}

/* Legacy Support */
.noto-serif {
    font-family: 'Inter', 'Poppins', system-ui, sans-serif;
}

.font-hind {
    font-family: 'Inter', 'Poppins', system-ui, sans-serif;
}

/* =============================================================================
   LAYOUT COMPONENTS
   ============================================================================= */
.container {
    width: 90%;
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
}

@media (min-width: 768px) {
    .container {
        width: 85%;
    }
}

@media (min-width: 1300px) {
    .container {
        width: 1280px;
    }
}

/* =============================================================================
   CARD COMPONENTS
   ============================================================================= */
.card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.dark .card {
    background: var(--dark-bg-secondary);
    border: 1px solid var(--dark-border);
}

.card-glass {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.dark .card-glass {
    background: rgba(30, 41, 59, 0.8);
    border: 1px solid rgba(71, 85, 105, 0.3);
}

/* =============================================================================
   BUTTON COMPONENTS
   ============================================================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    outline: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-hover) 100%);
    color: white;
}

.btn-secondary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--primary);
    color: white;
}

/* =============================================================================
   NAVIGATION SIDEBAR
   ============================================================================= */
.sidebar {
    background: white;
    border-right: 1px solid var(--gray-200);
    transition: background-color var(--transition-normal);
}

.dark .sidebar {
    background: var(--dark-bg-secondary);
    border-right-color: var(--dark-border);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-lg);
    font-weight: 500;
    color: var(--gray-700);
    transition: all var(--transition-normal);
}

.nav-link:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.nav-link.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
    color: white;
    box-shadow: 0 4px 12px rgba(34, 197, 94, 0.3);
}

.dark .nav-link {
    color: var(--dark-text-muted);
}

.dark .nav-link:hover {
    background: var(--dark-bg-tertiary);
    color: var(--primary);
}

/* =============================================================================
   FORM COMPONENTS
   ============================================================================= */
.input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    transition: all var(--transition-normal);
    background: white;
}

.input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.dark .input {
    background: var(--dark-bg-tertiary);
    border-color: var(--dark-border);
    color: var(--dark-text);
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes slideIn {
    from { 
        opacity: 0; 
        transform: translateX(-20px); 
    }
    to { 
        opacity: 1; 
        transform: translateX(0); 
    }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.animate-fadeIn {
    animation: fadeIn 0.3s ease;
}

.animate-slideUp {
    animation: slideUp 0.4s ease;
}

.animate-slideIn {
    animation: slideIn 0.4s ease;
}

.animate-pulse {
    animation: pulse 1.5s infinite;
}

.animate-bounce-subtle {
    animation: bounce 1s infinite;
}

/* =============================================================================
   UTILITY CLASSES
   ============================================================================= */
.glass {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.dark .glass {
    background: rgba(30, 41, 59, 0.7);
}

.gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-hover) 100%);
}

.gradient-secondary {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-hover) 100%);
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Active nav link styles */
.active-link {
    @apply bg-gradient-to-r from-green-500 to-green-600 text-white fill-white shadow-lg shadow-green-400/30;
}

.active-link-sky {
    @apply bg-gradient-to-r from-blue-500 to-blue-600 text-white fill-white shadow-lg shadow-blue-400/30;
}

/* Background utilities */
.bg-gray-50 {
    background-color: #f9fafb;
}

.min-h-screen {
    min-height: 100vh;
}

/* =============================================================================
   CK EDITOR STYLES
   ============================================================================= */
.ck-editor__editable_inline {
    min-height: 100px !important;
    max-width: 100% !important;
    overflow: auto;
}

/* =============================================================================
   SCROLLBAR STYLES
   ============================================================================= */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

.dark ::-webkit-scrollbar-track {
    background: var(--dark-bg-secondary);
}

.dark ::-webkit-scrollbar-thumb {
    background: var(--dark-border);
}

/* =============================================================================
   RESPONSIVE UTILITIES
   ============================================================================= */
@media (max-width: 768px) {
    .container {
        width: 95%;
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .card {
        border-radius: var(--radius-lg);
    }
}

/* =============================================================================
   SKELETON LOADING
   ============================================================================= */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s ease-in-out infinite;
    border-radius: var(--radius-md);
}

.dark .skeleton {
    background: linear-gradient(90deg, var(--dark-bg-tertiary) 25%, var(--dark-bg-secondary) 50%, var(--dark-bg-tertiary) 75%);
    background-size: 200% 100%;
}

@keyframes skeleton {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================================================
   BADGE COMPONENTS
   ============================================================================= */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.badge-success {
    background: var(--primary-light);
    color: var(--primary-hover);
}

.badge-warning {
    background: #fef3c7;
    color: #d97706;
}

.badge-error {
    background: #fee2e2;
    color: #dc2626;
}

.badge-info {
    background: #dbeafe;
    color: #2563eb;
}

.dark .badge-success {
    background: rgba(34, 197, 94, 0.2);
    color: #4ade80;
}

.dark .badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.dark .badge-error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.dark .badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: #60a5fa;
}

/* =============================================================================
   DARK MODE TOGGLE BUTTON
   ============================================================================= */
.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-lg);
    background: var(--gray-100);
    color: var(--gray-600);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
}

.theme-toggle:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.dark .theme-toggle {
    background: var(--dark-bg-tertiary);
    color: var(--dark-text-muted);
}

.dark .theme-toggle:hover {
    background: var(--dark-border);
    color: var(--dark-text);
}