/* 4rabet Games - Main CSS with Custom Color Palette */

/* CSS Variables - 4rabet Color Palette */
:root {
    --primary-color: #03045e;
    --secondary-color: #bbd0ff;
    --accent-color: #ff6b35;
    --white: #ffffff;
    --black: #000000;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(3, 4, 94, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(3, 4, 94, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(3, 4, 94, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(3, 4, 94, 0.1);
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Border radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
}

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

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

body {
    font-family: var(--font-family);
    line-height: 1.6;
    color: var(--gray-800);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Skip Link for Accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: var(--white);
    padding: 8px;
    text-decoration: none;
    border-radius: var(--radius-sm);
    z-index: 10000;
    transition: var(--transition);
}

.skip-link:focus {
    top: 6px;
}

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

/* Header and Navigation */
.header {
    background: linear-gradient(135deg, var(--primary-color), #023e8a);
    box-shadow: var(--shadow-lg);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-xl);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    text-decoration: none;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

/* Responsive Logo Sizing */
@media (min-width: 768px) {
    .logo-img {
        width: 60px;
        height: 60px;
    }
}

@media (min-width: 1024px) {
    .logo-img {
        width: 50px;
        height: 50px;
    }
}

.logo-img:hover {
    transform: scale(1.05);
}

.logo-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--white);
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    letter-spacing: 0.5px;
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-sm);
}

.nav-item {
    list-style: none;
}

.nav-link {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    border: 2px solid transparent;
    display: inline-block;
    font-size: var(--font-size-sm);
}

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(187, 208, 255, 0.3);
}

.nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(3, 4, 94, 0.4);
    transform: translateY(-2px);
    border: 2px solid var(--secondary-color);
    font-weight: 600;
}

/* Button Styles */
.nav-link.login-btn, 
.nav-link.register-btn {
    background: var(--accent-color);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-full);
    transition: var(--transition);
    border: 2px solid transparent;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: var(--font-size-sm);
}

.nav-link.login-btn:hover, 
.nav-link.register-btn:hover {
    background: var(--white);
    color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
    border-color: var(--accent-color);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    outline: none;
    width: 30px;
    height: 30px;
    justify-content: center;
    align-items: center;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--white);
    margin: 2px 0;
    transition: var(--transition);
    border-radius: var(--radius-sm);
}

/* Breadcrumb Navigation */
.breadcrumb {
    background: var(--gray-100);
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-200);
}

.breadcrumb-list {
    display: flex;
    list-style: none;
    align-items: center;
    gap: var(--spacing-sm);
    margin: 0;
    padding: 0;
}

.breadcrumb-item {
    display: flex;
    align-items: center;
}

.breadcrumb-item:not(:last-child)::after {
    content: '/';
    margin-left: var(--spacing-sm);
    color: var(--gray-500);
}

.breadcrumb-link {
    color: var(--black);
    text-decoration: none;
    font-size: var(--font-size-sm);
    font-weight: 700;
    transition: var(--transition);
}

.breadcrumb-link:hover {
    color: var(--primary-color);
}

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

/* Section Styles */
.section-title {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: var(--spacing-2xl);
    position: relative;
    padding: var(--spacing-lg);
    background: var(--white);
    border: 2px solid var(--primary-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: var(--radius-full);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-full);
    text-decoration: none;
    font-weight: 600;
    text-align: center;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: var(--font-size-base);
    line-height: 1.5;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), #023e8a);
    color: var(--white);
    border-color: var(--primary-color);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #023e8a, var(--primary-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: var(--font-size-lg);
}

.btn-orange {
    background: linear-gradient(135deg, var(--accent-color), #ff4500);
    color: var(--white);
    border-color: var(--accent-color);
}

.btn-orange:hover {
    background: linear-gradient(135deg, #ff4500, var(--accent-color));
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--primary-color), #023e8a);
    color: var(--white);
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
    margin-top: var(--spacing-3xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-title {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.footer-subtitle {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.footer-description {
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
}

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

.footer-link {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-text {
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-copyright {
    color: var(--white);
    opacity: 0.8;
    font-size: var(--font-size-sm);
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    z-index: 1000;
}

.back-to-top:hover {
    background: #023e8a;
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.back-to-top.show {
    display: flex;
}

/* Internal Links */
.internal-link {
    color: var(--black);
    text-decoration: none;
    font-weight: 700;
    border-bottom: 1px solid transparent;
    transition: var(--transition);
    margin: 0 var(--spacing-sm);
    padding: 0 var(--spacing-xs);
}

.internal-link:hover {
    border-bottom-color: var(--primary-color);
    background-color: var(--secondary-color);
    border-radius: var(--radius-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background: linear-gradient(135deg, var(--primary-color), #023e8a);
        width: 100%;
        height: calc(100vh - 70px);
        text-align: center;
        transition: 0.3s ease-in-out;
        box-shadow: var(--shadow-lg);
        overflow-y: auto;
        z-index: 999;
        padding: var(--spacing-sm) 0;
    }

    .nav-menu.active {
        left: 0;
    }
    
    .nav-item {
        width: 100%;
        margin: var(--spacing-sm) 0;
    }
    
    .nav-link {
        display: block;
        width: 90%;
        margin: 0 auto;
        padding: 0;
    }
    
    .login-btn, .register-btn {
        margin: 0 auto;
        display: inline-block;
        min-width: 150px;
    }
    
    body.menu-open {
        overflow: hidden;
        position: fixed;
        width: 100%;
    }
    
    .nav-container {
        padding: 0 var(--spacing-md);
    }
    
    .logo-text {
        font-size: var(--font-size-lg);
    }
    
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .section-title {
        font-size: var(--font-size-2xl);
    }
    
    .btn-large {
        padding: var(--spacing-sm) var(--spacing-xl);
        font-size: var(--font-size-base);
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 var(--spacing-sm);
    }
    
    .logo-text {
        font-size: var(--font-size-base);
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .section-title {
        font-size: var(--font-size-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
}

/* Print Styles */
@media print {
    .header,
    .hamburger,
    .back-to-top,
    .footer {
        display: none;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.4;
        color: var(--black);
    }
    
    .main-content {
        padding: 0;
    }
    
    .section-title {
        color: var(--black);
    }
}

/* High Contrast Mode */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #000080;
        --secondary-color: #add8e6;
        --accent-color: #ff4500;
    }
}

/* Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}