/* Main CSS for Rajasthan Virtual Shiksha PWA */
/* Based on Government of Rajasthan color scheme and college website reference */

/* CSS Variables */
:root {
    /* Color Scheme */
    --primary-color: #FF6B35; /* Saffron Orange */
    --secondary-color: #028A0F; /* Green */
    --accent-color: #000080; /* Navy Blue */
    --background-color: #FFFFFF; /* White */
    --text-color: #333333; /* Dark Gray */
    --success-color: #28A745; /* Green */
    --warning-color: #FFC107; /* Amber */
    --error-color: #DC3545; /* Red */
    --info-color: #17A2B8; /* Cyan */
    --light-gray: #f5f5f5;
    --medium-gray: #e0e0e0;
    --dark-gray: #666666;
    --apk-color: #FF9800; /* Orange for APK button */
    --apk-hover-color: #F57C00; /* Darker orange for APK button hover */

    /* Typography */
    --font-family-sans: 'Noto Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    --font-family-hindi: 'Noto Sans Devanagari', 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 */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Box Shadow */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

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

body {
    font-family: var(--font-family-sans);
    color: var(--text-color);
    line-height: 1.6;
    background-color: var(--background-color);
}

.hindi-text {
    font-family: var(--font-family-hindi);
    display: block;
    font-size: 0.9em;
    margin-top: var(--spacing-xs);
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

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

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

a:hover {
    color: var(--accent-color);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    padding-bottom: var(--spacing-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--primary-color);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
    min-width: 120px;
}

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

.btn-primary:hover {
    background-color: #e55a24;
    color: white;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #017a0e;
    color: white;
}

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

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

/* APK Download Button */
.apk-download {
    display: inline-flex;
    align-items: center;
    background-color: var(--apk-color);
    color: white;
    margin-left: var(--spacing-md);
}

.apk-download:hover {
    background-color: var(--apk-hover-color);
    color: white;
}

.apk-download svg {
    margin-right: 8px;
}

/* Header */
.main-header {
    background-color: white;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.raj-logo {
    height: 80px;
    width: auto;
}

.india-emblem {
    height: 60px;
    width: auto;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: all var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary-color);
    background-color: rgba(255, 107, 53, 0.1);
}

.hamburger-menu {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger-menu span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-color);
    margin: 5px 0;
    transition: all var(--transition-fast);
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, rgba(255,107,53,0.1) 0%, rgba(2,138,15,0.1) 100%);
    padding: var(--spacing-xxl) 0;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('../assets/images/rajasthan-pattern.png');
    background-size: 200px;
    opacity: 0.05;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-content h1 {
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-xl);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

/* Features Section */
.features-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-5px);
}

.feature-icon {
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: var(--spacing-sm);
}

.feature-card p {
    color: var(--dark-gray);
}

/* About Section */
.about-section {
    padding: var(--spacing-xxl) 0;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

/* Install App Section */
.install-app {
    background-color: var(--accent-color);
    color: white;
    padding: var(--spacing-xl) 0;
}

.install-content {
    text-align: center;
}

.install-content h2 {
    margin-bottom: var(--spacing-md);
}

.install-content p {
    margin-bottom: var(--spacing-lg);
}

.install-content .btn {
    margin-top: var(--spacing-md);
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

/* Footer */
.main-footer {
    background-color: #222;
    color: white;
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-col h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
    color: #ccc;
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    color: white;
    transition: color var(--transition-fast);
}

.social-links a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
    color: #999;
}