/**
 * TopChess.org - Global CSS Variables
 * Version: 1.0
 * Auto-generated from HTML extraction
 */

:root {
    /* Primary Colors */
    --primary-color: #004C99;
    --primary: #004C99;
    --primary-dark: #003d7a;
    --primary-light: #0066CC;
    --primary-hover: #0066CC;

    /* Accent Colors */
    --accent: #f59e0b;
    --accent-light: #fbbf24;
    --accent-dark: #d97706;

    /* Background Colors */
    --bg-card: rgba(255, 255, 255, 0.95);
    --bg-glass: rgba(255, 255, 255, 0.1);
    --bg-overlay: rgba(0, 0, 0, 0.3);

    /* Text Colors */
    --text-dark: #1e293b;
    --text-light: #64748b;
    --text-white: #ffffff;
    --text-muted: #94a3b8;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease-in-out;
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Typography */
    --font-family: 'Nunito', 'Segoe UI', 'DejaVu Sans', Arial, sans-serif;
    --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: 2rem;

    /* Z-index */
    --z-dropdown: 1000;
    --z-modal: 2000;
    --z-tooltip: 3000;
}
/**
 * TopChess.org - Base Styles
 * Version: 1.0
 * Global resets and base element styling
 */

/* CSS Reset */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base HTML/Body */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background: linear-gradient(135deg, #0066CC, #1E88E5, #004C99);
    min-height: 100vh;
    color: var(--text-white);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Background Overlay */
.background-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: 1;
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    position: relative;
    z-index: 10;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }

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

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

/* Focus Styles */
*:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}
/**
 * TopChess.org - Reusable UI Components
 * Version: 1.0
 */

/* Cards */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    gap: var(--spacing-xs);
}

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

.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Grid System */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

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

@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
/* Top Navigation Menu - Shared across all pages */

.top-nav {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 12px rgba(0, 76, 153, 0.08);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transform: translateY(0);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 1; /* Show navigation immediately */
}

/* On home page, hide initially */
body.home-page .top-nav {
    opacity: 0;
    transform: translateY(-100%);
}

body.home-page .top-nav.visible {
    transform: translateY(0);
    opacity: 1;
}

.top-nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 32px;
    gap: 24px;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    gap: 12px;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo:hover {
    transform: translateY(-2px);
}

.nav-logo:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 4px;
    border-radius: 8px;
}

.nav-logo-img {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 76, 153, 0.12);
    transition: box-shadow 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-logo:hover .nav-logo-img {
    box-shadow: 0 4px 16px rgba(0, 76, 153, 0.2);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: nowrap;
}

.nav-link {
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    color: #555;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
}

.nav-link:hover {
    background: #E3F2FD;
    color: #004C99;
    transform: translateY(-1px);
}

.nav-link:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 2px;
}

.nav-link.active {
    background: linear-gradient(135deg, #1976D2 0%, #42A5F5 100%);
    color: white;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

/* Submenu styles */
.nav-item {
    position: relative;
}

.nav-has-submenu {
    display: inline-block;
}

.nav-submenu-toggle {
    background: transparent;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-weight: 600;
    font-size: 0.95rem;
    position: relative;
}

.nav-submenu-toggle:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 2px;
    border-radius: 8px;
}

.nav-submenu-toggle::after {
    content: '▼';
    font-size: 0.65rem;
    margin-left: 6px;
    display: inline-block;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    opacity: 0.7;
}

.nav-has-submenu.submenu-open .nav-submenu-toggle::after {
    transform: rotate(180deg);
}

.nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 8px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 76, 153, 0.12);
    padding: 8px 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.3s;
    z-index: 1100;
}

.nav-has-submenu.submenu-open .nav-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-submenu-link {
    display: block;
    padding: 11px 18px;
    color: #555;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-submenu-link:hover {
    background: #E3F2FD;
    color: #004C99;
    padding-left: 22px;
}

.nav-submenu-link:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: -2px;
    background: #E3F2FD;
}

.nav-link.language-btn {
    border: none;
    background: transparent;
    color: inherit;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    font: inherit;
    padding-inline: 10px;
}

.nav-link.language-btn .language-icon {
    font-size: 1rem;
}

.nav-link.language-btn:hover,
.nav-link.language-btn:focus-visible {
    background: #E3F2FD;
    color: #004C99;
}

.nav-language {
    position: relative;
}

.language-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #ffffff;
    border-radius: 10px;
    box-shadow: 0 8px 24px rgba(0, 76, 153, 0.12);
    padding: 8px 0;
    min-width: 180px;
    max-height: 320px;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.3s;
    z-index: 1100;
}

.language-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    width: 100%;
    border: none;
    background: transparent;
    padding: 10px 16px;
    text-align: left;
    font-size: 0.9rem;
    font-weight: 600;
    color: #555;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.language-option:hover {
    background: #E3F2FD;
    color: #004C99;
}

.language-option:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: -2px;
    background: #E3F2FD;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: #004C99;
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-toggle:hover {
    background: #E3F2FD;
    transform: scale(1.05);
}

.nav-toggle:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 2px;
}

.nav-toggle:active {
    transform: scale(0.95);
}

/* Auth styles */
#auth-container {
    display: flex;
    align-items: center;
    margin-left: 8px;
}

.login-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.google-btn {
    background: #ffffff;
    color: #333;
    border: 1px solid #ddd;
}

.google-btn:hover {
    background: #f5f5f5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transform: translateY(-1px);
}

.google-btn:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 2px;
}

.google-btn:active {
    transform: translateY(0);
}

.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 4px 14px 4px 4px;
    background: #ffffff;
    border: 1px solid #ddd;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.user-btn:hover {
    background: #f5f5f5;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    transform: translateY(-1px);
}

.user-btn:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: 2px;
}

.user-btn:active {
    transform: translateY(0);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
}

.user-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: #333;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 8px;
    background: #ffffff;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 76, 153, 0.12);
    padding: 12px;
    min-width: 240px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                visibility 0.3s;
    z-index: 1100;
}

.user-dropdown.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown .user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: 8px;
    transition: background 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.user-dropdown .user-info:hover {
    background: #f5f5f5;
}

.user-dropdown .user-info:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: -2px;
}

.user-dropdown .dropdown-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.user-dropdown .dropdown-name {
    font-weight: 700;
    color: #333;
}

.user-dropdown .dropdown-email {
    font-size: 0.8rem;
    color: #666;
}

.user-dropdown hr {
    border: none;
    border-top: 1px solid #eee;
    margin: 8px 0;
}

.user-dropdown .dropdown-item {
    display: block;
    padding: 10px 12px;
    color: #333;
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.user-dropdown .dropdown-item:hover {
    background: #E3F2FD;
    color: #004C99;
    padding-left: 16px;
}

.user-dropdown .dropdown-item:focus-visible {
    outline: 2px solid #004C99;
    outline-offset: -2px;
    background: #E3F2FD;
}

/* Mobile styles */
@media (max-width: 1100px) {
    .top-nav {
        max-height: 100vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    .top-nav-container {
        padding: 10px 16px;
        flex-wrap: wrap;
        position: relative;
        justify-content: center;
        gap: 4px;
    }

    .nav-logo {
        order: 1;
        width: 100%;
        justify-content: center;
    }

    .nav-logo-img {
        width: 48px;
        height: 48px;
    }

    .nav-toggle {
        display: block;
        order: 2;
        width: 100%;
        text-align: center;
        margin: 8px 0 0 0;
    }

    .nav-links {
        width: 100%;
        flex-direction: column;
        gap: 2px;
        padding-top: 0;
        order: 3;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                    padding 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-links.active {
        max-height: 2000px;
        opacity: 1;
        padding-top: 12px;
    }

    .nav-link {
        width: 100%;
        text-align: center;
        padding: 11px 12px;
    }

    .nav-language {
        width: 100%;
    }

    .nav-link.language-btn {
        width: 100%;
        justify-content: center;
        padding: 11px 12px;
    }

    .language-dropdown {
        position: static;
        width: 100%;
        margin-top: 0;
        box-shadow: none;
        border: 1px solid #e5e7eb;
        border-radius: 8px;
        max-height: 40vh;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
        scroll-behavior: smooth;
        display: none;
    }

    .language-dropdown.open {
        display: block;
        margin-top: 4px;
    }

    .nav-item {
        width: 100%;
    }

    #auth-container {
        width: 100%;
        justify-content: center;
    }

    .login-btn {
        width: 100%;
        justify-content: center;
    }

    .user-menu {
        width: 100%;
    }

    .user-btn {
        width: 100%;
        justify-content: center;
    }

    .user-dropdown {
        position: static;
        width: 100%;
        margin-top: 4px;
        left: auto;
        right: auto;
        box-shadow: none;
        border: 1px solid #e5e7eb;
        display: none;
    }

    .user-dropdown.open {
        display: block;
    }

    /* Mobile submenu styles */
    .nav-has-submenu {
        width: 100%;
        display: block;
    }

    .nav-submenu-toggle {
        width: 100%;
        text-align: center;
        padding: 11px 12px;
    }

    .nav-submenu {
        position: static;
        width: 100%;
        margin-top: 0;
        box-shadow: none;
        border: none;
        border-radius: 8px;
        padding: 0;
        background: rgba(227, 242, 253, 0.3);
        transform: none;
        max-height: 0;
        overflow: hidden;
        opacity: 0;
        transition: max-height 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                    opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                    padding 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                    margin 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .nav-has-submenu.submenu-open .nav-submenu {
        max-height: 500px;
        opacity: 1;
        margin-top: 4px;
        padding: 4px 0;
    }

    .nav-submenu-link {
        width: 100%;
        text-align: center;
        padding: 10px 12px;
        font-size: 0.9rem;
    }

    .nav-submenu-link:hover {
        padding-left: 12px;
    }
}