/* Base styles */
:root {
    --primary-color: #2c3e50;
    --secondary-color: #3498db;
    --accent-color: #e74c3c;
    --success-color: #27ae60;
    --warning-color: #f39c12;
    --transition-speed: 0.3s;
    
    /* 8px Grid System */
    --space-xs: 0.25rem;   /* 4px */
    --space-sm: 0.5rem;    /* 8px */
    --space-md: 1rem;      /* 16px */
    --space-lg: 1.5rem;    /* 24px */
    --space-xl: 2rem;      /* 32px */
    --space-2xl: 3rem;     /* 48px */
    --space-3xl: 4rem;     /* 64px */
    
    /* Typography Scale */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    
    /* Line Heights */
    --leading-tight: 1.25;
    --leading-normal: 1.5;
    --leading-relaxed: 1.75;
}

/* Light theme (default) */
:root, [data-theme="light"] {
    --background-light: #f1f3f9;
    --background-dark: #e5e9f0;
    --background-main: #ffffff;
    --background-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --background-pattern: radial-gradient(circle at 20% 80%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
                         radial-gradient(circle at 80% 20%, rgba(255, 119, 198, 0.15) 0%, transparent 50%),
                         radial-gradient(circle at 40% 40%, rgba(120, 219, 226, 0.15) 0%, transparent 50%);
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.05), 0 2px 4px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --modal-bg: rgba(45, 55, 72, 0.6);
    --card-bg: rgba(255, 255, 255, 0.95);
    --card-border: rgba(255, 255, 255, 0.2);
    --nav-bg: rgba(247, 250, 252, 0.95);
    --nav-text: #2d3748;
    --nav-hover-bg: rgba(66, 153, 225, 0.1);
    --nav-border: rgba(226, 232, 240, 0.8);
    --nav-active-bg: rgba(66, 153, 225, 0.15);
}

/* Dark theme */
[data-theme="dark"] {
    --background-light: #0f172a;
    --background-dark: #020617;
    --background-main: #1e293b;
    --background-gradient: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    --background-pattern: radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
                         radial-gradient(circle at 80% 20%, rgba(168, 85, 247, 0.1) 0%, transparent 50%),
                         radial-gradient(circle at 40% 40%, rgba(14, 165, 233, 0.1) 0%, transparent 50%);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --border-color: #334155;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.2), 0 2px 4px rgba(0,0,0,0.15);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.3), 0 4px 6px rgba(0,0,0,0.2);
    --modal-bg: rgba(15, 23, 42, 0.8);
    --card-bg: rgba(30, 41, 59, 0.95);
    --card-border: rgba(51, 65, 85, 0.3);
    --primary-color: #3b82f6;
    --nav-bg: rgba(15, 23, 42, 0.95);
    --nav-text: #f1f5f9;
    --nav-hover-bg: rgba(59, 130, 246, 0.15);
    --nav-border: rgba(51, 65, 85, 0.8);
    --nav-active-bg: rgba(59, 130, 246, 0.25);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    color: var(--text-primary);
    background: var(--background-light);
    position: relative;
    transition: background var(--transition-speed), color var(--transition-speed);
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background-gradient);
    opacity: 0.1;
    pointer-events: none;
    z-index: -2;
}

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--background-pattern);
    opacity: 1;
    pointer-events: none;
    z-index: -1;
}

.app-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    width: 100%;
    position: relative;
    z-index: 1;
}

/* Top Navigation */
.top-nav {
    background: var(--nav-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 0 var(--space-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-md);
    border-bottom: 1px solid var(--nav-border);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 60px;
}

/* Top Navigation Components */
.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
}

.nav-logo {
    font-size: 2rem;
    color: var(--secondary-color);
    filter: drop-shadow(2px 2px 4px rgba(0,0,0,0.2));
}

.nav-home-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    text-decoration: none;
    transition: all var(--transition-speed);
}

.nav-home-link:hover {
    transform: translateY(-1px);
    filter: brightness(1.1);
}

.nav-title {
    margin: 0;
    font-size: var(--text-xl);
    color: var(--nav-text);
    font-weight: 600;
    letter-spacing: 0.5px;
}

.nav-items {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: var(--space-sm);
}

.nav-link {
    display: flex;
    align-items: center;
    padding: var(--space-sm) var(--space-md);
    color: var(--nav-text);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-speed);
}

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

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

/* Navigation Icons */
.nav-icon {
    font-size: 1.1rem;
    margin-right: 0.5rem;
    transition: all var(--transition-speed);
}

.nav-link:hover .nav-icon {
    transform: scale(1.1);
}

/* User Section */
.user-email {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

.logout-btn {
    padding: var(--space-sm) var(--space-md);
    background-color: transparent;
    color: var(--nav-text);
    border: 1px solid var(--nav-border);
    border-radius: 8px;
    cursor: pointer;
    transition: all var(--transition-speed);
    font-weight: 500;
    font-size: var(--text-sm);
}

.logout-btn:hover {
    background-color: rgba(231, 76, 60, 0.1);
    border-color: #e74c3c;
    color: #e74c3c;
}

/* Auth Links in Navigation */
.nav-auth-link {
    padding: var(--space-sm) var(--space-md);
    color: var(--nav-text);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 500;
    font-size: var(--text-sm);
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

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

.nav-auth-link.nav-signup {
    background-color: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.nav-auth-link.nav-signup:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transform: translateY(-1px);
}

.hidden {
    display: none !important;
}

/* Main Content */
.content {
    flex: 1;
    padding: var(--space-xl);
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    background: transparent;
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--background-main);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: var(--space-xs) var(--space-sm);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    color: var(--text-primary);
    transition: all var(--transition-speed);
}

.theme-toggle:hover {
    background-color: var(--nav-hover-bg);
    transform: scale(1.05);
}

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

.site-footer {
    background-color: var(--card-bg);
    padding: var(--space-sm) var(--space-xl);
    text-align: center;
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: var(--text-xs);
}

.site-footer p {
    margin: 0;
}

/* SEO Landing Page Styles */
.hero-section {
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
    background: var(--background-gradient);
    background-blend-mode: multiply;
    color: white;
    border-radius: 8px;
    margin-bottom: var(--space-3xl);
}

.hero-section h1 {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-md);
    font-weight: 700;
}

.hero-section h2 {
    font-size: var(--text-2xl);
    margin-bottom: var(--space-lg);
    font-weight: 400;
    opacity: 0.95;
}

.hero-description {
    font-size: var(--text-lg);
    max-width: 800px;
    margin: 0 auto var(--space-xl);
    line-height: var(--leading-relaxed);
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.btn-primary, .btn-secondary {
    padding: var(--space-md) var(--space-xl);
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all var(--transition-speed);
    display: inline-block;
}

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

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

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

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

.hero-stats {
    display: flex;
    gap: var(--space-xl);
    justify-content: center;
    flex-wrap: wrap;
    font-size: var(--text-sm);
    opacity: 0.9;
}

.hero-stats span {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

/* Features Grid */
.features-grid {
    margin-bottom: var(--space-3xl);
}

.features-grid h3 {
    text-align: center;
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--space-xl);
    transition: all var(--transition-speed);
}

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

.feature-card h4 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-md);
    color: var(--primary-color);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: var(--leading-normal);
}

/* Comparison Table */
.comparison-section {
    margin-bottom: var(--space-3xl);
}

.comparison-section h3 {
    text-align: center;
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
}

.comparison-table {
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.comparison-table th,
.comparison-table td {
    padding: var(--space-md);
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.comparison-table th {
    background: var(--background-dark);
    font-weight: 600;
}

.comparison-table td strong {
    color: var(--success-color);
}

/* Testimonials */
.testimonials-section {
    background: var(--background-dark);
    padding: var(--space-3xl) var(--space-md);
    border-radius: 8px;
    margin-bottom: var(--space-3xl);
}

.testimonials-section h3 {
    text-align: center;
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
}

.testimonials {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    max-width: 1000px;
    margin: 0 auto;
}

.testimonials blockquote {
    background: var(--card-bg);
    padding: var(--space-xl);
    border-radius: 8px;
    margin: 0;
    border-left: 4px solid var(--primary-color);
}

.testimonials blockquote p {
    margin-bottom: var(--space-md);
    font-style: italic;
    color: var(--text-primary);
}

.testimonials cite {
    color: var(--text-secondary);
    font-size: var(--text-sm);
    font-style: normal;
}

/* CTA Section */
.cta-section {
    text-align: center;
    padding: var(--space-3xl) var(--space-md);
    background: var(--background-gradient);
    color: white;
    border-radius: 8px;
    margin-bottom: var(--space-2xl);
}

.cta-section h3 {
    font-size: var(--text-3xl);
    margin-bottom: var(--space-md);
}

.cta-section p {
    font-size: var(--text-lg);
    margin-bottom: var(--space-xl);
    opacity: 0.9;
}

.btn-primary-large {
    padding: var(--space-lg) var(--space-2xl);
    background: white;
    color: var(--primary-color);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 700;
    font-size: var(--text-lg);
    display: inline-block;
    transition: all var(--transition-speed);
}

.btn-primary-large:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.btn-secondary-large {
    padding: var(--space-lg) var(--space-2xl);
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: var(--text-lg);
    display: inline-block;
    transition: all var(--transition-speed);
    margin-left: var(--space-md);
}

.btn-secondary-large:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.6);
    transform: translateY(-2px);
}

.cta-buttons-section {
    display: flex;
    gap: var(--space-md);
    justify-content: center;
    flex-wrap: wrap;
    margin: var(--space-xl) 0;
}

.no-credit-card {
    margin-top: var(--space-md);
    font-size: var(--text-sm);
    opacity: 0.8;
}

/* FAQ Section */
.faq-section {
    margin-bottom: var(--space-3xl);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.faq-section h3 {
    text-align: center;
    font-size: var(--text-3xl);
    margin-bottom: var(--space-2xl);
    color: var(--text-primary);
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
}

.faq-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--space-xl);
    transition: all var(--transition-speed);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-item h4 {
    font-size: var(--text-lg);
    color: var(--primary-color);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.faq-item p {
    color: var(--text-secondary);
    line-height: var(--leading-normal);
    margin: 0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-section h1 {
        font-size: var(--text-3xl);
    }
    
    .hero-section h2 {
        font-size: var(--text-xl);
    }
    
    .comparison-table {
        font-size: var(--text-sm);
    }
    
    .comparison-table th,
    .comparison-table td {
        padding: var(--space-sm);
    }
    
    .faq-item {
        padding: var(--space-lg);
    }
}

/* View Management */
.view {
    display: none;
}

.view.active {
    display: block;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Tournament Header */
.tournament-header-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-color);
}

.back-btn {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: var(--space-sm) var(--space-md);
    border-radius: 8px;
    cursor: pointer;
    font-size: var(--text-base);
    font-weight: 500;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.back-btn:hover {
    background: var(--nav-hover-bg);
    transform: translateX(-2px);
}

.tournament-title {
    flex: 1;
    text-align: center;
    margin: 0;
    font-size: var(--text-2xl);
    font-weight: 600;
    color: var(--text-primary);
}

.spacer {
    width: 80px; /* Same width as back button to center the title */
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-top: 0;
}

h2 {
    font-size: 1.75rem;
    margin-bottom: 1.5rem;
}

/* Buttons */
button, .btn {
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-speed);
    font-weight: 500;
    display: inline-block;
    text-align: center;
    text-decoration: none;
}

button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Primary Button */
button[type="submit"], .btn-primary, #add-player-btn {
    background-color: var(--secondary-color);
    color: white;
}

button[type="submit"]:hover:not(:disabled), .btn-primary:hover:not(:disabled), 
#add-player-btn:hover {
    background-color: #2980b9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Secondary Button */
.btn-secondary, #back-to-dashboard {
    background-color: var(--background-dark);
    color: var(--text-primary);
}

.btn-secondary:hover:not(:disabled), #back-to-dashboard:hover {
    background-color: #d5dbdb;
}

/* Danger Button */
.btn-danger {
    background-color: var(--accent-color);
    color: white;
}

.btn-danger:hover:not(:disabled) {
    background-color: #c0392b;
}

/* Auth Forms */
.auth-form {
    max-width: 400px;
    margin: 3rem auto;
    padding: 2.5rem;
    background: var(--card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 500;
}

.form-group input, .form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.form-group input:focus, .form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
}

.auth-link a {
    color: var(--secondary-color);
    text-decoration: none;
}

.auth-link a:hover {
    text-decoration: underline;
}

/* Error Messages */
.error-message {
    background-color: #f8d7da;
    color: #721c24;
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border: 1px solid #f5c6cb;
    border-radius: 4px;
    font-size: 0.875rem;
}

.error-message.hidden {
    display: none;
}

/* Password Match Indicator */
.password-match-indicator {
    display: block;
    margin-top: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.password-match-indicator.match {
    color: #28a745;
}

.password-match-indicator.no-match {
    color: #dc3545;
}

/* Disabled button state */
button:disabled, .signup-submit:disabled {
    background-color: #e0e0e0;
    color: #999;
    cursor: not-allowed;
    opacity: 0.6;
}

button:disabled:hover, .signup-submit:disabled:hover {
    background-color: #e0e0e0;
    transform: none;
}

#signup-form {
    display: flex;
    flex-direction: column;
    min-height: 280px;
}

#signup-form .signup-submit {
    align-self: center;
    margin-top: auto;
}

/* Tournament Tabs */
.tournament-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
    gap: 0;
}

.tournament-tab {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    border-bottom: 3px solid transparent;
    font-size: 0.95rem;
}

.tournament-tab:hover {
    color: var(--text-primary);
    background: var(--background-light);
}

.tournament-tab.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
    background: transparent;
}

.tournament-content {
    position: relative;
}

.tournament-tab-content {
    display: none;
}

.tournament-tab-content.active {
    display: block;
}

/* Tournament List */
.tournament-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1rem;
}

.tournament-list li {
    margin-bottom: 0;
}

.tournament-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: var(--space-md);
    transition: all var(--transition-speed);
    cursor: pointer;
    position: relative;
    box-shadow: var(--shadow-sm);
}

.tournament-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 100%);
    border-radius: 16px;
    pointer-events: none;
    z-index: -1;
}

[data-theme="dark"] .tournament-card::before {
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.05) 0%, 
        rgba(255, 255, 255, 0.02) 100%);
}

.tournament-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    transform: translateY(-4px);
}

.tournament-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-sm);
}

.tournament-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
    line-height: var(--leading-tight);
}

.tournament-subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0.25rem 0 0 0;
}

.tournament-status {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.tournament-status.ongoing {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeaa7;
}

.tournament-status.completed {
    background: #d1edff;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.tournament-status.registration {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

[data-theme="dark"] .tournament-status.ongoing {
    background: rgba(255, 193, 7, 0.2);
    color: #ffc107;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

[data-theme="dark"] .tournament-status.completed {
    background: rgba(23, 162, 184, 0.2);
    color: #17a2b8;
    border: 1px solid rgba(23, 162, 184, 0.3);
}

[data-theme="dark"] .tournament-status.registration {
    background: rgba(40, 167, 69, 0.2);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

.tournament-info {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.tournament-info-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.info-icon {
    color: var(--secondary-color);
    font-size: 1rem;
}

.tournament-winner {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
    margin-top: 0.5rem;
}

.trophy-icon {
    color: #f39c12;
    font-size: 1.1rem;
}

.tournament-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    flex-wrap: wrap;
}

.tournament-action-btn {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    background: var(--background-main);
    color: var(--text-primary);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.tournament-action-btn:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.tournament-action-btn.primary {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.tournament-action-btn.primary:hover {
    background: #2980b9;
    border-color: #2980b9;
}

/* Empty state */
.empty-state {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 3rem 2rem;
    font-size: 1.1rem;
}

/* Tournament Info Form */
.tournament-info-form {
    max-width: 600px;
    margin: 0;
}

.tournament-info-form .form-group {
    margin-bottom: 1.5rem;
}

.tournament-info-form .form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.tournament-info-form .form-group input,
.tournament-info-form .form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    background: var(--background-main);
    color: var(--text-primary);
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}

.tournament-info-form .form-group input:focus,
.tournament-info-form .form-group select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-readonly {
    padding: 0.75rem 0;
    color: var(--text-secondary);
    font-style: italic;
    margin: 0;
}

.tournament-info-form .form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.tournament-info-form .btn-primary {
    background: var(--secondary-color);
    color: white;
    border: 1px solid var(--secondary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.tournament-info-form .btn-primary:hover:not(:disabled) {
    background: #2980b9;
    border-color: #2980b9;
}

.tournament-info-form .btn-primary:disabled {
    background: var(--text-secondary);
    border-color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.6;
}

.tournament-info-form .btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.tournament-info-form .btn-secondary:hover {
    background: var(--background-light);
    border-color: var(--text-secondary);
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

[data-theme="dark"] .message.success {
    background: rgba(40, 167, 69, 0.2);
    color: #28a745;
    border: 1px solid rgba(40, 167, 69, 0.3);
}

[data-theme="dark"] .message.error {
    background: rgba(220, 53, 69, 0.2);
    color: #dc3545;
    border: 1px solid rgba(220, 53, 69, 0.3);
}

/* Tabs */
.tabs {
    margin-top: 2rem;
    display: flex;
    border-bottom: 2px solid var(--border-color);
}

.tab {
    margin-right: 0.5rem;
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-speed);
}

.tab:hover:not(:disabled) {
    color: var(--text-primary);
}

.tab.active {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.tab:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.tab-content {
    margin-top: 2rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Round Tabs */
.round-tabs {
    margin-bottom: 1.5rem;
}

.round-tabs button {
    margin-right: 0.5rem;
    margin-bottom: 0.5rem;
}

/* Game Results */
.result-select {
    margin-left: 0.5rem;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

/* Tables */
table {
    width: 100%;
    background: var(--card-bg);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    background-color: var(--background-dark);
    font-weight: 600;
    color: var(--text-primary);
}

tr:hover {
    background-color: var(--background-light);
}

/* Modal styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--modal-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1000;
    overflow-y: auto;
    padding: 2rem 0;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--card-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 2rem;
    border: 1px solid var(--card-border);
    border-radius: 20px;
    width: 95%;
    max-width: 700px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s ease-out;
    margin: auto;
    position: relative;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.1) 0%, 
        rgba(255, 255, 255, 0.05) 100%);
    border-radius: 20px;
    pointer-events: none;
    z-index: -1;
}

[data-theme="dark"] .modal-content::before {
    background: linear-gradient(145deg, 
        rgba(255, 255, 255, 0.05) 0%, 
        rgba(255, 255, 255, 0.02) 100%);
}

@keyframes slideUp {
    from {
        transform: translateY(20px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-content h3 {
    margin-top: 0;
}

/* Tournament modal specific styles */
#tournament-modal .modal-content {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    max-height: 80vh;
}

#tournament-modal .modal-content h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.1rem;
}

#tournament-form {
    overflow-y: auto;
    flex: 1;
    max-height: calc(80vh - 100px);
}

#tournament-form .form-group {
    margin-bottom: 0.5rem;
}

#tournament-form .form-group label {
    margin-bottom: 0.15rem;
    font-size: 0.8rem;
    font-weight: 600;
}

#tournament-form .form-group input,
#tournament-form .form-group select {
    padding: 0.4rem;
    font-size: 0.8rem;
    height: 38px;
}

/* Modern Tiebreak Selector */
.tiebreak-selector {
    position: relative;
}

.tiebreak-selected-container {
    display: flex;
    align-items: center;
    background: var(--background-main);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    min-height: 38px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.tiebreak-selected-container:hover {
    border-color: var(--secondary-color);
}

.tiebreak-selected-container.active {
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.tiebreak-display-area {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    padding: 0.4rem;
    gap: 0.4rem;
    min-height: 1.2rem;
}

.tiebreak-selected-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.tiebreak-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--secondary-color);
    color: white;
    padding: 0.2rem 0.6rem;
    border-radius: 16px;
    font-size: 0.75rem;
    white-space: nowrap;
}

.tiebreak-chip .remove-chip {
    cursor: pointer;
    font-size: 1rem;
    line-height: 1;
    opacity: 0.8;
    transition: opacity var(--transition-speed);
}

.tiebreak-chip .remove-chip:hover {
    opacity: 1;
}

.tiebreak-placeholder {
    color: var(--text-secondary);
    font-size: 0.875rem;
    pointer-events: none;
}

.tiebreak-placeholder.hidden {
    display: none;
}

.tiebreak-dropdown-toggle {
    padding: 0.5rem;
    background: transparent;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    transition: transform var(--transition-speed);
}

.tiebreak-dropdown-toggle:hover {
    color: var(--text-primary);
}

.tiebreak-selected-container.active .tiebreak-dropdown-toggle .dropdown-arrow {
    transform: rotate(180deg);
}

/* Dropdown */
.tiebreak-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    margin-top: 2px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    max-height: 140px;
    overflow-y: auto;
    z-index: 1000;
}

.tiebreak-dropdown::-webkit-scrollbar {
    width: 6px;
}

.tiebreak-dropdown::-webkit-scrollbar-track {
    background: var(--background-light);
}

.tiebreak-dropdown::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

.tiebreak-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    font-size: 0.85rem;
}

.tiebreak-option:hover {
    background-color: var(--background-light);
}

.tiebreak-option.selected {
    background-color: rgba(52, 152, 219, 0.1);
}

.tiebreak-check {
    color: var(--secondary-color);
    font-weight: bold;
    display: none;
}

.tiebreak-option.selected .tiebreak-check {
    display: block;
}

#tournament-form .form-actions {
    margin-top: 0.5rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

/* Players Tab */
.players-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

/* Players List */
#players-list ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

#players-list li {
    background: var(--card-bg);
    padding: 0.75rem;
    margin-bottom: 0.25rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-speed);
    cursor: pointer;
    font-size: 0.875rem;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

#players-list li:nth-child(even) {
    background: rgba(59, 130, 246, 0.02);
}

#players-list li:hover {
    border-color: var(--primary-color);
    background: rgba(59, 130, 246, 0.05);
    transform: translateX(4px);
}

#players-list .delete-player {
    margin-left: 1rem;
    padding: 0.25rem 0.5rem;
    font-size: 1rem;
    min-width: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

/* Form notice styles */
.form-notice {
    padding: var(--space-sm) var(--space-md);
    margin-bottom: var(--space-md);
    border-radius: 8px;
    font-size: var(--text-sm);
    font-weight: 500;
}

.info-notice {
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.2);
    color: var(--primary-color);
}

[data-theme="dark"] .info-notice {
    background: rgba(59, 130, 246, 0.15);
    border: 1px solid rgba(59, 130, 246, 0.3);
    color: #60a5fa;
}

/* Disabled tiebreak selector */
.tiebreak-selector.disabled {
    opacity: 0.5;
    pointer-events: none;
}

.tiebreak-selector.disabled .tiebreak-dropdown-toggle {
    cursor: not-allowed;
}

/* Compact player info layout */
.player-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.player-name {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 150px;
}

.player-ratings {
    display: flex;
    gap: 1rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.player-fide-rating,
.player-local-rating {
    white-space: nowrap;
}

.actions-menu {
    position: absolute;
    right: 0;
    top: 100%;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    box-shadow: var(--shadow-md);
    display: none;
    z-index: 10;
    overflow: hidden;
}

.actions-menu.show {
    display: block;
}

.actions-menu button {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    border: none;
    background: var(--card-bg);
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.actions-menu button:hover {
    background-color: var(--background-light);
}

/* Tournament Header */
.tournament-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-md);
}

#new-tournament-btn {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #2980b9 100%);
    color: white;
    border: none;
    padding: var(--space-sm) var(--space-lg);
    border-radius: 10px;
    font-weight: 600;
    font-size: var(--text-sm);
    cursor: pointer;
    transition: all var(--transition-speed);
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

#new-tournament-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.5s;
}

#new-tournament-btn:hover {
    background: linear-gradient(135deg, #2980b9 0%, var(--secondary-color) 100%);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

#new-tournament-btn:hover::before {
    left: 100%;
}

#new-tournament-btn:active {
    transform: translateY(-1px);
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Tiebreak Controls */
.tiebreak-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: var(--background-light);
    border-radius: 4px;
    margin-bottom: 0.5rem;
}

.tiebreak-buttons {
    display: flex;
    flex-direction: column;
}

.tiebreak-buttons button {
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    min-width: auto;
    margin: 0.125rem;
}

/* Responsive layout */
@media (max-width: 768px) {
    .top-nav {
        padding: 0 var(--space-md);
        height: auto;
        flex-wrap: wrap;
    }
    
    .nav-left {
        flex-wrap: wrap;
        gap: var(--space-sm);
    }
    
    .nav-title {
        font-size: var(--text-lg);
    }
    
    .nav-items {
        width: 100%;
        justify-content: center;
        padding: var(--space-sm) 0;
    }
    
    .nav-right {
        gap: var(--space-sm);
    }
    
    .user-email {
        display: none;
    }
    
    .content {
        padding: var(--space-md);
    }
    
    .auth-form {
        padding: 1.5rem;
        margin: 1rem auto;
    }
    
    .tournament-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tab {
        font-size: 0.9rem;
        padding: 0.5rem 1rem;
    }
    
    /* Modal responsiveness */
    .modal {
        padding: 1rem 0;
    }
    
    .modal-content {
        width: 98%;
        max-height: 90vh;
        padding: 1rem;
    }
    
    #tournament-modal .modal-content {
        margin-top: 0.25rem;
        margin-bottom: 0.25rem;
        padding: 0.75rem;
        max-height: 98vh;
    }
    
    #tournament-form {
        max-height: calc(98vh - 80px);
    }
    
    #tournament-form .form-group {
        margin-bottom: 0.4rem;
    }
    
    #tournament-form .form-group label {
        margin-bottom: 0.1rem;
        font-size: 0.75rem;
    }
    
    #tournament-form .form-group input,
    #tournament-form .form-group select {
        padding: 0.3rem;
        font-size: 0.75rem;
        height: 34px;
    }
    
    .tiebreak-dropdown {
        max-height: 120px;
    }
    
    /* Tournament tabs responsive */
    .tournament-tabs {
        margin-bottom: 1rem;
    }
    
    .tournament-tab {
        padding: 0.75rem 1rem;
        font-size: 0.875rem;
    }
    
    /* Tournament cards responsive */
    .tournament-list {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    .tournament-card {
        padding: 0.875rem;
    }
    
    .tournament-title {
        font-size: 1.1rem;
    }
    
    .tournament-info {
        gap: 1rem;
    }
    
    .tournament-actions {
        gap: 0.5rem;
    }
    
    .tournament-action-btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
    
    /* Tournament info form responsive */
    .tournament-info-form .form-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .tournament-info-form .btn-primary,
    .tournament-info-form .btn-secondary {
        width: 100%;
        text-align: center;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Success/Error Messages */
.message {
    padding: 1rem;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.message.success {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.message.error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

/* Card Styles */
.card {
    background: white;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
}

.card-header {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

/* Utility Classes */
.text-center {
    text-align: center;
}

/* Rounds Header Styles */
.rounds-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.next-round-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 6px;
    border: none;
    background: var(--secondary-color);
    color: white;
    cursor: pointer;
    transition: all var(--transition-speed);
    white-space: nowrap;
    min-width: 120px;
}

.next-round-btn:hover {
    background: #2980b9;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.next-round-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.finish-tournament-btn {
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 6px;
    border: none;
    background: var(--success-color);
    color: white;
    cursor: pointer;
    transition: all var(--transition-speed);
    white-space: nowrap;
    min-width: 140px;
}

.finish-tournament-btn:hover {
    background: #219a52;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.finish-tournament-btn:disabled {
    background: var(--text-secondary);
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Round Navigation Styles */
.round-navigation {
    flex: 1;
}

.round-tabs-container {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 0.5rem;
    margin: 0;
    padding: 0;
}

.round-tabs-wrapper {
    display: flex;
    gap: 0.5rem;
}

.round-tab {
    min-width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
    border-radius: 8px;
    color: var(--secondary-color);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.round-tab:hover {
    background: rgba(52, 152, 219, 0.2);
    transform: translateY(-1px);
}

.round-tab.active {
    background: var(--secondary-color);
    color: white;
    border: 3px solid var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.3);
    transform: scale(1.05);
    font-weight: 700;
}

.round-nav-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.round-nav-arrow:hover {
    background: var(--secondary-color);
    color: white;
    border-color: var(--secondary-color);
}

.round-nav-arrow:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Dark theme adjustments for round navigation */
[data-theme="dark"] .round-tabs-container {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .round-tab {
    background: rgba(52, 152, 219, 0.15);
    border-color: rgba(52, 152, 219, 0.3);
}

[data-theme="dark"] .round-tab:hover {
    background: rgba(52, 152, 219, 0.25);
}

[data-theme="dark"] .round-nav-arrow {
    border-color: rgba(255, 255, 255, 0.2);
}

/* Pairings Display Styles */
.pairings-container {
    min-height: 200px;
}

.no-pairings {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 3rem 2rem;
    font-size: 1.1rem;
}

.pairings-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.pairing-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    transition: all var(--transition-speed);
}

.pairing-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--secondary-color);
    transform: translateY(-1px);
}

.pairing-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.pairing-header .table-number {
    background: var(--secondary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.pairing-players {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.player {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.03);
}

[data-theme="dark"] .player {
    background: rgba(255, 255, 255, 0.05);
}

.player-color {
    font-size: 1.2rem;
}

.player-name {
    font-weight: 500;
    color: var(--text-primary);
}

.vs-divider {
    text-align: center;
    color: var(--text-secondary);
    font-weight: 600;
    margin: 0.25rem 0;
}

.pairing-result {
    text-align: center;
    padding: 0.5rem;
    background: rgba(39, 174, 96, 0.1);
    border: 1px solid var(--success-color);
    border-radius: 6px;
    color: var(--success-color);
    font-weight: 600;
}

/* Pairings Table Styles */
.pairings-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    font-size: 0.875rem;
}

.pairings-table thead {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.1) 0%, 
        rgba(147, 51, 234, 0.05) 100%);
    border-bottom: 1px solid var(--border-color);
}

.pairings-table th {
    padding: 0.75rem 0.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pairings-table td {
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.pairings-table tbody tr:nth-child(even) {
    background: rgba(59, 130, 246, 0.02);
}

.pairings-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.08) !important;
}

.pairings-table tbody tr:last-child td {
    border-bottom: none;
}

/* Table column specific styles */
.pairings-table .table-number {
    width: 60px;
    text-align: center;
    font-weight: 600;
    color: var(--secondary-color);
}

.pairings-table .white-player,
.pairings-table .black-player {
    font-weight: 500;
    min-width: 200px;
}

.pairings-table .white-points,
.pairings-table .black-points {
    width: 80px;
    text-align: center;
    font-weight: 600;
    color: var(--secondary-color);
}

.pairings-table .result-cell {
    width: 120px;
    text-align: center;
}

/* Result field styles */
.result-field-container {
    position: relative;
    width: 100%;
}

.result-display {
    display: block;
    padding: 0.5rem;
    border: 1px solid transparent;
    border-radius: 4px;
    background: rgba(52, 152, 219, 0.1);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all var(--transition-speed);
    text-align: center;
    min-height: 1.5rem;
}

.result-display:hover {
    background: rgba(52, 152, 219, 0.15);
    border-color: var(--secondary-color);
}

.result-display.locked {
    background: rgba(108, 117, 125, 0.1);
    color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.7;
    border: 1px solid rgba(108, 117, 125, 0.3);
}

.result-display.locked:hover {
    background: rgba(108, 117, 125, 0.1);
    border-color: rgba(108, 117, 125, 0.3);
}

/* Special styling for finished tournament results */
.result-display.locked[title*="Tournament is finished"] {
    background: rgba(230, 230, 230, 0.5);
    color: var(--text-secondary);
    border: 1px solid rgba(200, 200, 200, 0.8);
    font-style: italic;
}

[data-theme="dark"] .result-display.locked[title*="Tournament is finished"] {
    background: rgba(60, 60, 60, 0.5);
    color: var(--text-secondary);
    border: 1px solid rgba(80, 80, 80, 0.8);
}

.result-dropdown {
    position: fixed;
    background: var(--card-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 9999;
    overflow: hidden;
    min-width: 120px;
    max-width: 200px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.result-dropdown.hidden {
    display: none !important;
}

.result-dropdown:not(.hidden) {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Force visibility for debugging */
.result-dropdown.visible {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

.result-option {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color var(--transition-speed);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-primary);
}

.result-option:last-child {
    border-bottom: none;
}

.result-option:hover {
    background: rgba(52, 152, 219, 0.1);
}

.result-option.clear-option {
    color: var(--accent-color);
    font-style: italic;
}

.result-option.clear-option:hover {
    background: rgba(231, 76, 60, 0.1);
}

.bye-result {
    display: block;
    padding: 0.5rem;
    background: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
    font-size: 0.875rem;
    font-weight: 600;
    text-align: center;
    border-radius: 4px;
    border: 1px solid var(--success-color);
}

/* Result dropdown styles */
.result-select {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--background-main);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color var(--transition-speed);
}

.result-select:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.result-select .clear-option {
    color: var(--accent-color);
    font-style: italic;
}

/* Dark theme adjustments for pairings table */
[data-theme="dark"] .pairings-table thead {
    background: rgba(52, 152, 219, 0.15);
}

[data-theme="dark"] .pairings-table tbody tr:hover {
    background: rgba(52, 152, 219, 0.1);
}

[data-theme="dark"] .result-select {
    background: var(--card-bg);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Mobile responsive for pairings */
@media (max-width: 768px) {
    .rounds-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .next-round-btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
        min-width: 100px;
    }
    
    .round-tabs-container {
        padding: 0.5rem;
    }
    
    .round-tab {
        min-width: 40px;
        height: 40px;
        font-size: 0.875rem;
    }
    
    .round-nav-arrow {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    
    /* Make table responsive */
    .pairings-table {
        font-size: 0.875rem;
    }
    
    .pairings-table th,
    .pairings-table td {
        padding: 0.75rem 0.5rem;
    }
    
    .pairings-table .white-player,
    .pairings-table .black-player {
        min-width: 150px;
    }
    
    .pairings-table .white-points,
    .pairings-table .black-points {
        width: 60px;
    }
    
    .pairings-table .result-cell {
        width: 100px;
    }
    
    .result-select {
        padding: 0.4rem;
        font-size: 0.8rem;
    }
}

/* Standings Table Styles */
.standings-container {
    padding: 1rem 0;
}

.standings-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    font-size: 0.875rem;
}

.standings-table thead {
    background: linear-gradient(135deg, 
        rgba(59, 130, 246, 0.1) 0%, 
        rgba(147, 51, 234, 0.05) 100%);
    border-bottom: 1px solid var(--border-color);
}

.standings-table th {
    padding: 0.75rem 0.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.standings-table td {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.standings-table tbody tr:nth-child(even) {
    background: rgba(59, 130, 246, 0.02);
}

.standings-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.08) !important;
}

.standings-table tbody tr:last-child td {
    border-bottom: none;
}

/* Standings column specific styles */
.standings-table .rank,
.standings-table .rank-header {
    width: 80px;
    text-align: center;
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

.standings-table .player-name,
.standings-table .player-header {
    font-weight: 500;
    min-width: 200px;
}

.standings-table .points,
.standings-table .points-header {
    width: 100px;
    text-align: center;
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 1.1rem;
}

/* Tiebreak column styles */
.standings-table .tiebreaks-main-header {
    text-align: center;
    font-weight: 600;
    color: var(--text-primary);
    background: rgba(52, 152, 219, 0.15);
    border-bottom: 1px solid var(--border-color);
}

.standings-table .tiebreak-subheader {
    width: 100px;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    padding: 0.5rem 0.25rem;
    border-left: 1px solid var(--border-color);
}

.standings-table .tiebreak-value {
    width: 100px;
    text-align: center;
    font-size: 0.875rem;
    color: var(--text-primary);
    border-left: 1px solid rgba(var(--border-color), 0.3);
}

/* Header row styles */
.standings-table .main-header {
    background: rgba(52, 152, 219, 0.1);
}

.standings-table .sub-header {
    background: rgba(52, 152, 219, 0.05);
    border-bottom: 2px solid var(--border-color);
}

.standings-table .sub-header th {
    padding: 0.5rem 0.25rem;
    font-size: 0.75rem;
}

.standings-note {
    text-align: center;
    margin-top: 1rem;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 0.875rem;
}

/* Dark theme adjustments for standings */
[data-theme="dark"] .standings-table thead {
    background: rgba(52, 152, 219, 0.15);
}

[data-theme="dark"] .standings-table tbody tr:hover {
    background: rgba(52, 152, 219, 0.1);
}

[data-theme="dark"] .standings-table .tiebreaks-main-header {
    background: rgba(52, 152, 219, 0.2);
}

[data-theme="dark"] .standings-table .main-header {
    background: rgba(52, 152, 219, 0.15);
}

[data-theme="dark"] .standings-table .sub-header {
    background: rgba(52, 152, 219, 0.1);
}

/* Mobile responsive for standings */
@media (max-width: 768px) {
    .standings-table {
        font-size: 0.875rem;
    }
    
    .standings-table th,
    .standings-table td {
        padding: 0.75rem 0.25rem;
    }
    
    .standings-table .rank,
    .standings-table .rank-header {
        width: 60px;
        font-size: 1rem;
    }
    
    .standings-table .player-name,
    .standings-table .player-header {
        min-width: 120px;
        font-size: 0.8rem;
    }
    
    .standings-table .points,
    .standings-table .points-header {
        width: 70px;
        font-size: 1rem;
    }
    
    .standings-table .tiebreak-subheader {
        width: 80px;
        font-size: 0.7rem;
        padding: 0.5rem 0.1rem;
    }
    
    .standings-table .tiebreak-value {
        width: 80px;
        font-size: 0.8rem;
    }
    
    .standings-table .sub-header th {
        padding: 0.4rem 0.1rem;
        font-size: 0.7rem;
    }
}

/* Modal Type Specific Styles */
.error-modal h3 {
    color: var(--accent-color);
    border-bottom: 2px solid var(--accent-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.info-modal h3 {
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.confirm-modal h3 {
    color: var(--warning-color);
    border-bottom: 2px solid var(--warning-color);
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.error-modal .modal-content {
    border-left: 4px solid var(--accent-color);
}

.info-modal .modal-content {
    border-left: 4px solid var(--secondary-color);
}

.confirm-modal .modal-content {
    border-left: 4px solid var(--warning-color);
}

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

/* Support Page Styles */
.support-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.support-container h2 {
    color: var(--text-primary);
    font-size: var(--text-3xl);
    font-weight: 600;
    margin-bottom: var(--space-xl);
    text-align: center;
}

.contact-info {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.contact-info h3 {
    color: var(--text-primary);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-md);
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
    line-height: var(--leading-relaxed);
}

.contact-email {
    padding: var(--space-md);
    background: rgba(52, 152, 219, 0.1);
    border: 1px solid rgba(52, 152, 219, 0.2);
    border-radius: 8px;
    margin-bottom: 0 !important;
}

.contact-email a {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
}

.contact-email a:hover {
    text-decoration: underline;
}

.feedback-section {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.feedback-section h3 {
    color: var(--text-primary);
    font-size: var(--text-xl);
    font-weight: 600;
    margin-bottom: var(--space-lg);
}

.feedback-form {
    max-width: 100%;
}

.feedback-form .form-group {
    margin-bottom: var(--space-lg);
}

.feedback-form .form-group label {
    display: block;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
    font-size: var(--text-sm);
}

.feedback-form .form-group input,
.feedback-form .form-group textarea {
    width: 100%;
    padding: var(--space-md);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--background-main);
    color: var(--text-primary);
    font-size: var(--text-base);
    font-family: inherit;
    transition: all var(--transition-speed);
    resize: vertical;
}

.feedback-form .form-group input:focus,
.feedback-form .form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.1);
}

.feedback-form .form-group textarea {
    min-height: 120px;
}

.feedback-form .form-group textarea::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

.feedback-form .btn-primary {
    width: 100%;
    padding: var(--space-md) var(--space-xl);
    font-size: var(--text-base);
    font-weight: 600;
    margin-top: var(--space-md);
}

.success-message {
    background: rgba(39, 174, 96, 0.1);
    border: 1px solid var(--success-color);
    color: var(--success-color);
    padding: var(--space-md);
    border-radius: 8px;
    margin-bottom: var(--space-lg);
    font-weight: 500;
    text-align: center;
}

.success-message.hidden {
    display: none;
}

/* Dark theme adjustments for support page */
[data-theme="dark"] .contact-email {
    background: rgba(52, 152, 219, 0.15);
    border-color: rgba(52, 152, 219, 0.3);
}

[data-theme="dark"] .feedback-form .form-group input,
[data-theme="dark"] .feedback-form .form-group textarea {
    background: var(--card-bg);
    border-color: rgba(255, 255, 255, 0.2);
}

/* Mobile responsive for support page */
@media (max-width: 768px) {
    .support-container {
        padding: var(--space-lg);
    }
    
    .support-container h2 {
        font-size: var(--text-2xl);
        margin-bottom: var(--space-lg);
    }
    
    .contact-info,
    .feedback-section {
        padding: var(--space-lg);
        margin-bottom: var(--space-lg);
    }
    
    .contact-info h3,
    .feedback-section h3 {
        font-size: var(--text-lg);
        margin-bottom: var(--space-md);
    }
}