/* main.css - Professional styling for the entire Question Paper Generator site */

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* CSS Variables for consistent theming */
:root {
    /* Color Palette */
    --primary-color: #2c3e50;
    --primary-dark: #1a2530;
    --primary-light: #3e5771;
    --secondary-color: #3498db;
    --secondary-dark: #2980b9;
    --secondary-light: #5dade2;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --danger-color: #c0392b;
    --info-color: #16a085;
    
    /* Neutral Colors */
    --white: #ffffff;
    --off-white: #f9fafc;
    --light-gray: #f1f3f6;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --black: #212529;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
    --shadow-lg: 0 8px 25px rgba(0,0,0,0.15);
    --shadow-xl: 0 16px 40px rgba(0,0,0,0.2);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

img {
    max-width: 100%;
    height: auto;
    display: block;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--dark-gray);
    background: var(--light-gray);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

h1 { font-size: 2.5rem; font-weight: 700; }
h2 { font-size: 2rem; font-weight: 600; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 500; }
h5 { font-size: 1.1rem; font-weight: 500; }
h6 { font-size: 1rem; font-weight: 500; }

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

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

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

/* Layout Components */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-xl) 0;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);
    color: var(--white);
    padding: var(--spacing-xxl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-lg);
    color: var(--white);
    text-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 1rem 1.75rem;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    min-height: 48px;
    font-family: var(--font-primary);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
}

.btn:hover::before {
    left: 100%;
}

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

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.btn:disabled:hover {
    transform: none !important;
}

/* Button Variants */
.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color), var(--secondary-light));
    color: var(--white);
    box-shadow: 0 4px 15px rgba(52, 152, 219, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--secondary-dark), var(--secondary-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(44, 62, 80, 0.3);
}

.btn-success {
    background: linear-gradient(135deg, var(--success-color), #2ecc71);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #229954, var(--success-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(39, 174, 96, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-color), #f1c40f);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(243, 156, 18, 0.3);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #e67e22, var(--warning-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(243, 156, 18, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-color), #e74c3c);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(192, 57, 43, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #a93226, var(--danger-color));
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(192, 57, 43, 0.4);
}

/* Button Sizes */
.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    min-height: 36px;
}

.btn-lg {
    padding: 1.25rem 2.5rem;
    font-size: 1.125rem;
    min-height: 56px;
}

.btn-xl {
    padding: 1.5rem 3rem;
    font-size: 1.25rem;
    min-height: 64px;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 2rem;
    box-shadow: 0 4px 20px rgba(44, 62, 80, 0.08);
    transition: all var(--transition-normal);
    border: 1px solid rgba(44, 62, 80, 0.06);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 40px rgba(44, 62, 80, 0.15);
    border-color: rgba(52, 152, 219, 0.2);
}

.card:hover::before {
    opacity: 1;
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid rgba(44, 62, 80, 0.1);
}

.card-title {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-color);
    margin: 0;
    line-height: 1.3;
}

.card-body {
    color: var(--gray);
    font-size: 1rem;
    line-height: 1.6;
}

/* Card Variants */
.card-primary {
    border-top: 4px solid var(--secondary-color);
}

.card-success {
    border-top: 4px solid var(--success-color);
}

.card-warning {
    border-top: 4px solid var(--warning-color);
}

.card-danger {
    border-top: 4px solid var(--danger-color);
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: var(--dark-gray);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    border: 2px solid var(--light-gray);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(30, 60, 114, 0.1);
}

.form-control:invalid {
    border-color: var(--danger-color);
}

.form-text {
    font-size: 0.875rem;
    color: var(--gray);
    margin-top: var(--spacing-sm);
}

.form-error {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: var(--spacing-sm);
}

/* Alerts */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    border-left: 4px solid;
}

.alert-success {
    background: rgba(40, 167, 69, 0.1);
    border-color: var(--success-color);
    color: var(--success-color);
}

.alert-warning {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--warning-color);
    color: var(--warning-color);
}

.alert-danger {
    background: rgba(220, 53, 69, 0.1);
    border-color: var(--danger-color);
    color: var(--danger-color);
}

.alert-info {
    background: rgba(23, 162, 184, 0.1);
    border-color: var(--info-color);
    color: var(--info-color);
}

/* Tables */
.table {
    width: 100%;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: var(--spacing-lg);
}

.table th,
.table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--light-gray);
}

.table th {
    background: var(--light-gray);
    font-weight: 600;
    color: var(--dark-gray);
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.5px;
}

.table tr:hover {
    background: rgba(30, 60, 114, 0.02);
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--primary-color); }
.text-secondary { color: var(--secondary-color); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-muted { color: var(--gray); }

.bg-primary { background: var(--primary-color); }
.bg-secondary { background: var(--secondary-color); }
.bg-light { background: var(--light-gray); }
.bg-white { background: var(--white); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-sm); }
.p-2 { padding: var(--spacing-md); }
.p-3 { padding: var(--spacing-lg); }
.p-4 { padding: var(--spacing-xl); }

/* Responsive Design */
@media (max-width: 1024px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .hero-actions {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero {
        padding: var(--spacing-xl) 0;
    }
    
    .hero h1 {
        font-size: 2.5rem;
        line-height: 1.2;
    }
    
    .hero p {
        font-size: 1.1rem;
        margin-bottom: var(--spacing-lg);
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .card {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }
    
    .main-content {
        padding: var(--spacing-lg) 0;
    }
    
    /* Typography adjustments */
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    /* Form improvements */
    .form-control {
        font-size: 16px; /* Prevents zoom on iOS */
        padding: var(--spacing-md);
    }
    
    /* Table responsiveness */
    .table {
        font-size: 0.9rem;
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero h1 {
        font-size: 2rem;
        line-height: 1.1;
    }
    
    .hero p {
        font-size: 1rem;
        margin-bottom: var(--spacing-md);
    }
    
    .card {
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    .btn {
        font-size: 1rem;
        padding: var(--spacing-md);
        border-radius: var(--radius-md);
    }
    
    /* Typography for mobile */
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    
    /* Spacing adjustments */
    .main-content {
        padding: var(--spacing-md) 0;
    }
    
    /* Form improvements for mobile */
    .form-control {
        font-size: 16px;
        padding: 14px;
        border-radius: var(--radius-md);
    }
    
    .btn {
        padding: 14px var(--spacing-md);
        font-size: 16px;
    }
    
    /* Table becomes horizontally scrollable */
    .table-responsive {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .table {
        min-width: 600px;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.animate-slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

/* Layout Fix - Prevent horizontal overflow issues */
.main-content {
    width: 100%;
    overflow-x: hidden;
}

/* Ensure proper vertical layout */
section {
    display: block;
    width: 100%;
}

.container {
    display: block;
    width: 100%;
    max-width: 1200px;
}

/* Fix any flex containers that might be causing horizontal layouts */
.flex-vertical {
    display: flex;
    flex-direction: column;
}

.flex-horizontal {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
}

/* Prevent inline elements from causing layout issues */
.block {
    display: block;
    width: 100%;
}

/* Layout fixes for consistent page structure */
.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Ensure main content takes available space and footer stays at bottom */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 140px); /* Account for header and footer height */
    padding: var(--spacing-xl) 0;
}

/* Prevent footer from overlapping content */
body {
    padding-bottom: 0;
    margin-bottom: 0;
}

/* Ensure consistent spacing across all pages */
.login-content,
.about-content,
.contact-content,
.notes-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    max-width: 500px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Admin specific adjustments */
.admin-container {
    flex: 1;
    padding-bottom: 2rem;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .main-content {
        min-height: calc(100vh - 120px);
        padding: var(--spacing-lg) 0;
    }
    
    .login-content,
    .about-content,
    .contact-content,
    .notes-content {
        padding: 1rem;
    }
}

/* Print Styles */
@media print {
    .hero,
    .btn,
    .card {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .btn {
        background: #f0f0f0 !important;
        color: #000 !important;
    }
}


/* ================classes container box */
.classes-container {
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            box-shadow: 0 4px 20px rgba(44, 62, 80, 0.08);
            margin-bottom: 2rem;
            border: 1px solid rgba(44, 62, 80, 0.06);
            position: relative;
            overflow: hidden;
            transition: all var(--transition-normal);
            box-shadow: 0 4px 15px rgba(79, 110, 247, 0.2);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            margin-bottom: 2rem;
            background: var(--white);
            border-radius: var(--radius-xl);
            padding: 2.5rem;
            margin-bottom: 2rem;
        }
        
        .classes-container::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--secondary-color), var(--secondary-light));
        }
        
        .classes-container h2 {
            color: black;
          
         
        }
        
        .classes-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(40%, 1fr));
            gap: 1.5rem;
            margin-top: 2rem;
            
        }
.class-box {
            background: linear-gradient(135deg, var(--success-color), #2ecc71);
            color: white;
            padding: 2rem 1.5rem;
            border-radius: var(--radius-lg);
            cursor: pointer;
            transition: all var(--transition-normal);
            border: none;
            font-size: 1.1rem;
            font-weight: 600;
            text-align: center;
            position: relative;
            overflow: hidden;
            min-height: 80px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 15px rgba(39, 174, 96, 0.3);
        }
        
        .class-box::before {
            content: '';
            position: absolute;
            top: 0;
            left: -100%;
            width: 100%;
            height: 100%;
            background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
            transition: left 0.6s ease;
        }
        
        .class-box:hover::before {
            left: 100%;
        }
        
        .class-box:hover {
            background: linear-gradient(135deg, #229954, var(--success-color));
            transform: translateY(-4px);
            box-shadow: 0 8px 25px rgba(39, 174, 96, 0.4);
        }
        
        .class-box:active {
            transform: translateY(-2px);
        }