/* Modern Premium Gym Website - Professional UI/UX Design */
/* Inspired by mytnet.ir design style - Clean & Minimal */

:root {
    /* Color Palette - Clean & Minimal (mytnet.ir style) */
    --primary: #2563EB;
    --primary-dark: #1D4ED8;
    --primary-light: #3B82F6;
    --secondary: #64748B;
    --accent: #0EA5E9;
    --success: #10B981;
    --danger: #EF4444;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    /* Neutral Colors - Light & Clean */
    --text-primary: #1E293B;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --bg-primary: #FFFFFF;
    --bg-secondary: #F8FAFC;
    --bg-tertiary: #F1F5F9;
    --bg-dark: #0F172A;
    --border-color: #E2E8F0;
    --border-light: #F1F5F9;
    
    /* Gradients - Subtle */
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
    --gradient-secondary: linear-gradient(135deg, #64748B 0%, #475569 100%);
    --gradient-accent: linear-gradient(135deg, #0EA5E9 0%, #0284C7 100%);
    --gradient-hero: linear-gradient(135deg, #2563EB 0%, #1D4ED8 50%, #0EA5E9 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, rgba(255,255,255,0.05) 100%);
    
    /* Shadows */
    --shadow-xs: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --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);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-colored: 0 10px 30px -10px rgba(99, 102, 241, 0.5);
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius: 12px;
    --radius-md: 16px;
    --radius-lg: 20px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 300ms ease;
    --transition-slow: 500ms ease;
    --transition-bounce: 600ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Vazirmatn', sans-serif !important;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Vazirmatn', sans-serif !important;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.8;
    direction: rtl;
    font-size: 14px;
    font-weight: 400;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    font-feature-settings: "kern" 1;
    text-rendering: optimizeLegibility;
}

/* Typography - Clean & Readable */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: 0;
    font-family: 'Vazirmatn', sans-serif !important;
}

h1 { 
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--text-primary);
}

h2 { 
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    color: var(--text-primary);
}

h3 { 
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 600;
    color: var(--text-primary);
}

h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.8;
    font-weight: 400;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}

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

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.container-fluid {
    width: 100%;
    padding: 0 var(--spacing-md);
}

/* Header - Clean & Minimal */
.header {
    background: #FFFFFF;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all var(--transition-base);
    border-bottom: 1px solid var(--border-color);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
    background: rgba(255, 255, 255, 0.98);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-lg);
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    transition: color var(--transition-base);
    display: flex;
    align-items: center;
    gap: 0.75rem; /* فاصله استاندارد بین لوگو و متن */
    font-family: 'Vazirmatn', sans-serif !important;
}

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

.logo::before {
    content: '';
    display: none;
}

/* اندازه استاندارد و اصولی لوگوی هدر */
.logo-image {
    width: 80px;
    height: 80px;
    object-fit: contain;
    display: block;
}

@media (max-width: 768px) {
    .logo-image {
        width: 64px;
        height: 64px;
    }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

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

.nav-links li {
    position: relative;
}

.nav-links a {
    color: var(--text-primary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius);
    transition: all var(--transition-base);
    position: relative;
    display: block;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 50%;
    transform: translateX(50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
    border-radius: var(--radius-full);
}

.nav-links a:hover::after {
    width: 80%;
}

.nav-links a:hover {
    color: var(--primary);
    transform: translateY(-2px);
}

/* Buttons - Modern & Animated */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: 0.875rem 1.75rem;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    text-align: center;
    text-decoration: none;
    position: relative;
    overflow: hidden;
    font-family: 'Vazirmatn', sans-serif !important;
    box-shadow: var(--shadow-sm);
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

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

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.3);
    border: none;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(37, 99, 235, 0.4);
    color: white;
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-primary);
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-2px);
}

.btn-success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    color: white;
}

.btn-sm {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
    border-radius: var(--radius-md);
}

/* Cards - Premium Design */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    position: relative;
}

.card::before {
    content: '';
    display: none;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.card-header {
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-light);
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--text-primary);
}

.card-body {
    margin-bottom: var(--spacing-md);
}

.card-footer {
    padding-top: var(--spacing-md);
    border-top: 2px solid var(--border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Hero Section - Clean & Simple */
.hero {
    background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
    min-height: 60vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero::before {
    content: '';
    display: none;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.hero .container {
    position: relative;
    z-index: 1;
}

.hero h1 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-weight: 700;
    animation: fadeInUp 0.8s ease;
}

.hero p {
    color: rgba(255, 255, 255, 0.95);
    font-size: clamp(1.1rem, 2vw, 1.5rem);
    margin-bottom: var(--spacing-xl);
    animation: fadeInUp 0.8s ease 0.2s both;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero .btn {
    animation: fadeInUp 0.8s ease 0.4s both;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

/* Section */
.section {
    padding: var(--spacing-2xl) 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title h2 {
    position: relative;
    display: inline-block;
    padding-bottom: var(--spacing-md);
}

.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    right: 50%;
    transform: translateX(50%);
    width: 60px;
    height: 3px;
    background: var(--primary);
    border-radius: var(--radius-full);
}

.section-title p {
    margin-top: var(--spacing-md);
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Sports Grid - Beautiful Cards */
.sports-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.sport-card {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    text-align: center;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    cursor: pointer;
    border: 1px solid var(--border-color);
    position: relative;
}

.sport-card::before {
    content: '';
    display: none;
}

.sport-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: var(--primary);
}

.sport-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    transition: transform var(--transition-base);
    position: relative;
    z-index: 1;
}

.sport-card:hover .sport-icon {
    transform: scale(1.1);
}

.sport-card h3 {
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
    color: var(--text-primary);
}

.sport-card p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
    font-size: 1rem;
}

.sport-card .btn {
    position: relative;
    z-index: 1;
}

/* Classes List - Modern Design */
.class-item {
    background: var(--bg-primary);
    border-radius: var(--radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: all var(--transition-base);
    border: 1px solid var(--border-color);
    gap: var(--spacing-lg);
}

.class-item:hover {
    transform: translateX(-4px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    border-color: var(--primary);
}

.class-info h4 {
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
    font-size: 1.25rem;
}

.class-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-top: var(--spacing-xs);
}

.class-meta span {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
}

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

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: 'Vazirmatn', sans-serif !important;
    background: var(--bg-primary);
    color: var(--text-primary);
    transition: all var(--transition-base);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

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

select.form-control {
    cursor: pointer;
}

/* Alerts - Beautiful Design */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius);
    margin-bottom: var(--spacing-md);
    border: 2px solid;
    position: relative;
    padding-right: 3rem;
}

.alert::before {
    content: '✓';
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    font-weight: bold;
}

.alert-success {
    background: #D1FAE5;
    color: #065F46;
    border-color: #10B981;
}

.alert-danger {
    background: #FEE2E2;
    color: #991B1B;
    border-color: #EF4444;
}

.alert-danger::before {
    content: '✕';
}

.alert-warning {
    background: #FEF3C7;
    color: #92400E;
    border-color: #F59E0B;
}

.alert-warning::before {
    content: '⚠';
}

.alert-info {
    background: #DBEAFE;
    color: #1E40AF;
    border-color: #3B82F6;
}

.alert-info::before {
    content: 'ℹ';
}

/* Tables - Modern Design */
.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table thead {
    background: var(--gradient-primary);
    color: white;
}

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

.table th {
    font-weight: 600;
    color: white;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

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

.table tbody tr:hover {
    background: var(--bg-tertiary);
    transform: scale(1.01);
}

/* Badges - Modern Design */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-success {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: white;
}

.badge-danger {
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    color: white;
}

.badge-warning {
    background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    color: white;
}

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

/* Footer - Modern Design */
.footer {
    background: var(--bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    margin-top: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 2px;
    background: var(--gradient-primary);
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0;
}

/* Dashboard - Modern Layout */
.dashboard {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    min-height: calc(100vh - 200px);
    margin-top: var(--spacing-lg);
}

.sidebar {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    max-height: calc(100vh - 140px); /* تا پایین صفحه، با اسکرول داخلی */
    overflow-y: auto;
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    position: sticky;
    top: 100px;
}

.sidebar-menu {
    list-style: none;
}

.sidebar-menu li {
    margin-bottom: var(--spacing-xs);
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-primary);
    border-radius: var(--radius);
    transition: all var(--transition-base);
    font-weight: 500;
}

.sidebar-menu a::before {
    content: '→';
    transition: transform var(--transition-base);
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--gradient-primary);
    color: white;
    transform: translateX(-8px);
    box-shadow: var(--shadow-md);
}

.sidebar-menu a.active::before,
.sidebar-menu a:hover::before {
    transform: translateX(-4px);
}

.main-content {
    flex: 1;
}

/* Stats Cards - Beautiful Design */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 2px solid var(--border-light);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient-primary);
}

.stat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
}

/* Slider Styles */
.slider-section {
    margin: 0;
    padding: 0;
}

.slider-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

.slider-wrapper {
    display: flex;
    transition: transform 0.5s ease-in-out;
}

.slide {
    min-width: 100%;
    position: relative;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.9);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: all 0.3s;
    z-index: 10;
}

.slider-btn:hover {
    background: white;
    transform: translateY(-50%) scale(1.1);
}

.slider-prev {
    right: 1rem;
}

.slider-next {
    left: 1rem;
}

.slider-dots {
    position: absolute;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 0.5rem;
    z-index: 10;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid white;
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
}

.slider-dot.active {
    background: white;
}

.slider-dot:hover {
    background: rgba(255,255,255,0.7);
}

@media (max-width: 768px) {
    .slider-section .slide > div {
        height: 300px !important;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .slider-prev {
        right: 0.5rem;
    }
    
    .slider-next {
        left: 0.5rem;
    }
}

/* Mobile Menu Toggle (Hamburger) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.mobile-menu-toggle span {
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 3px;
    transition: all 0.3s ease;
    transform-origin: center;
    display: block;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
    background: var(--primary);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
    background: var(--primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        order: 2;
        position: static;
    top: auto;
    margin-top: var(--spacing-lg);
    height: auto;
    max-height: none;
    overflow-y: visible;
    overflow-x: auto;
    white-space: nowrap;
    padding: var(--spacing-md);
    display: flex;
    flex-direction: row;
    gap: var(--spacing-sm);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    background: var(--bg-primary);
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) var(--bg-tertiary);
    margin-bottom: var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
    flex-wrap: nowrap;
    align-items: stretch;
    justify-content: flex-start;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm);
    overflow-x: auto;
    overflow-y: hidden;
    -ms-overflow-style: -ms-autohiding-scrollbar;
}

.sidebar-menu {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-xs);
    list-style: none;
    margin: 0;
    padding: 0;
    width: 100%;
    align-items: stretch;
    flex-wrap: nowrap;
}

.sidebar-menu li {
    margin: 0;
    flex-shrink: 0;
    white-space: nowrap;
}

.sidebar-menu a {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius);
    transition: all var(--transition-base);
    font-weight: 500;
    white-space: nowrap;
    min-width: fit-content;
    text-decoration: none;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
}

.sidebar-menu a::before {
    content: '';
    display: none;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    background: var(--gradient-primary);
    color: white;
    transform: none;
    box-shadow: var(--shadow-sm);
    border-color: transparent;
}

.main-content {
    order: 1;
    width: 100%;
}
}

@media (max-width: 768px) {
    /* نمایش دکمه همبرگری */
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* استایل navbar در موبایل */
    .navbar {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
        position: relative;
    }
    
    /* منوی موبایل - مخفی به صورت پیش‌فرض */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        box-shadow: -2px 0 10px rgba(0,0,0,0.1);
        flex-direction: column;
        align-items: flex-start;
        gap: 0;
        padding: 4rem 1.5rem 2rem;
        transition: right 0.3s ease-in-out;
        z-index: 1000;
        overflow-y: auto;
        list-style: none;
    }
    
    /* نمایش منو وقتی active است */
    .nav-links.active {
        right: 0;
    }
    
    /* استایل آیتم‌های منو در موبایل */
    .nav-links li {
        width: 100%;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links li:last-child {
        border-bottom: none;
    }
    
    .nav-links a {
        display: block;
        width: 100%;
        padding: 1rem;
        color: var(--text-primary);
        font-weight: 500;
        transition: all 0.3s;
        border-radius: 0;
    }
    
    .nav-links a:hover {
        background: var(--bg-secondary);
        color: var(--primary);
        transform: none;
        padding-right: 1.5rem;
    }
    
    .nav-links a::after {
        display: none;
    }
    
    /* دکمه ثبت نام در منوی موبایل */
    .nav-links .btn {
        width: 100%;
        justify-content: center;
        margin-top: 0.5rem;
    }
    
    /* جلوگیری از scroll وقتی منو باز است */
    body.menu-open {
        overflow: hidden;
    }
    
    /* Overlay برای بستن منو - با JavaScript اضافه می‌شود */
    .menu-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100vw;
        height: 100vh;
        background: rgba(0,0,0,0.5);
        z-index: 998;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s ease, visibility 0.3s ease;
    }
    
    .menu-overlay.active {
        opacity: 1;
        visibility: visible;
    }
    
    .sports-grid {
        grid-template-columns: 1fr;
    }
    
    .class-item {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero {
        min-height: 60vh;
        padding: var(--spacing-xl) 0;
    }
    
    .section {
        padding: var(--spacing-xl) 0;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .section {
        padding: var(--spacing-lg) 0;
    }
    
    .card {
        padding: var(--spacing-md);
    }
}

/* Utilities */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-left { text-align: left; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }

/* Loading Animation */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

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

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}