:root {
    --primary: #1B4332;
    --secondary: #2D6A4F;
    --accent: #40916C;
    --background: #F8F9FA;
    --text: #212529;
    --gold: #D4AF37;
    --white: #FFFFFF;
    --spacing: 24px;
}

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

body {
    font-family: 'Inter', 'Roboto', sans-serif;
    background-color: var(--background);
    color: var(--text);
    line-height: 1.6;
}

body.rtl {
    font-family: 'Vazir', 'IRANSans', sans-serif;
    direction: rtl;
}

/* Modern CSS Grid and Flexbox Layouts */
.grid {
    display: grid;
    gap: var(--spacing);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

.flex {
    display: flex;
}

.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }

/* Smooth Scroll Behavior */
html {
    scroll-behavior: smooth;
}

/* Custom Scrollbar Styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 10px;
    transition: all 0.3s ease;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
}

/* Modern Typography with Variable Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap');

body {
    font-weight: 400;
    font-variation-settings: 'wght' 400;
}

h1, h2, h3 {
    font-variation-settings: 'wght' 700;
}

/* Animated Loading States */
.skeleton-loader {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: 8px;
    min-height: 20px;
}

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

/* Floating Action Button with Ripple Effects */
.fab-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.rtl .fab-container {
    right: auto;
    left: 30px;
}

.fab {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold), #FFA500);
    color: var(--white);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
}

/* Ripple Effect */
@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
}

.main-nav {
    background-color: var(--primary);
    color: var(--white);
    padding: var(--spacing);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing);
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: calc(var(--spacing) / 2);
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 6px;
    transition: background-color 0.3s ease;
    font-weight: 500;
}

.nav-link:hover {
    background-color: var(--secondary);
}

.language-toggle {
    display: flex;
    gap: 12px;
}

.lang-btn {
    background-color: var(--gold);
    color: var(--text);
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.lang-btn:hover {
    transform: translateY(-2px);
}

.main-content {
    min-height: calc(100vh - 200px);
}

.hero-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 50%, var(--accent) 100%);
    color: var(--white);
    padding: calc(var(--spacing) * 4) var(--spacing);
    text-align: center;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: calc(var(--spacing) * 2);
    opacity: 0.95;
}

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

.btn {
    padding: 16px 32px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    display: inline-block;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

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

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

.features-section {
    padding: calc(var(--spacing) * 4) var(--spacing);
    max-width: 1400px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing);
}

.feature-card {
    background-color: var(--white);
    padding: calc(var(--spacing) * 1.5);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.dashboard-container,
.portal-container,
.admin-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: calc(var(--spacing) * 2) var(--spacing);
}

.dashboard-header,
.portal-header,
.admin-header {
    text-align: center;
    margin-bottom: calc(var(--spacing) * 2);
}

.dashboard-header h2,
.portal-header h2,
.admin-header h2 {
    color: var(--primary);
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.dashboard-subtitle,
.portal-subtitle,
.admin-subtitle {
    font-size: 1.2rem;
    color: var(--secondary);
}

.dashboard-grid,
.portal-grid,
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing);
}

.dashboard-card,
.portal-card,
.admin-card {
    background-color: var(--white);
    padding: calc(var(--spacing) * 1.5);
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.dashboard-card:hover,
.portal-card:hover,
.admin-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.dashboard-card h3,
.admin-card h3 {
    color: var(--primary);
    margin-bottom: 16px;
    font-size: 1.3rem;
}

.portal-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.portal-card h3 {
    color: var(--primary);
    margin-bottom: 12px;
    font-size: 1.3rem;
}

.card-content {
    color: var(--text);
}

.admin-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    background-color: var(--background);
    border-radius: 8px;
}

.stat-label {
    font-weight: 500;
    color: var(--secondary);
}

.stat-value {
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--primary);
}

.stat-active {
    color: var(--accent);
}

.main-footer {
    background-color: var(--primary);
    color: var(--white);
    padding: calc(var(--spacing) * 1.5);
    text-align: center;
    margin-top: calc(var(--spacing) * 3);
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 16px;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .features-grid,
    .dashboard-grid,
    .portal-grid,
    .admin-grid {
        grid-template-columns: 1fr;
    }
}