:root {
    --primary: #2ecc71;
    --primary-dark: #27ae60;
    --secondary: #3498db;
    --warning: #f39c12;
    --danger: #e74c3c;
    --dark: #2c3e50;
    --light: #ecf0f1;
    --white: #ffffff;
    --gray: #95a5a6;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: var(--dark);
    line-height: 1.6;
}

.navbar {
    background: var(--white);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: all 0.3s;
}

.nav-links a:hover,
.nav-links a.active {
    background: var(--primary);
    color: var(--white);
}

.nav-user {
    color: var(--gray);
    font-size: 0.9rem;
}

.btn-logout {
    color: var(--danger) !important;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.auth-card {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 100%;
    max-width: 400px;
}

.auth-card h1 {
    text-align: center;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.auth-card h2 {
    text-align: center;
    color: var(--dark);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.alert {
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
}

.alert-error {
    background: #fde8e8;
    color: var(--danger);
    border: 1px solid #fecaca;
}

.alert-success {
    background: #d1fae5;
    color: var(--primary-dark);
    border: 1px solid #a7f3d0;
}

.form-group {
    margin-bottom: 1.25rem;
}

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

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--light);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.3s;
    text-align: center;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

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

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

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

.btn-block {
    width: 100%;
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

.btn-text {
    background: none;
    color: var(--primary);
    padding: 0.5rem;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.auth-link {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--gray);
}

.auth-link a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 500;
}

.dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

.stats-card,
.action-card,
.pending-card,
.ranking-preview {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.stats-card h3,
.action-card h3,
.pending-card h3,
.ranking-preview h3 {
    margin-bottom: 1rem;
    color: var(--dark);
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
}

.stat-item {
    text-align: center;
    padding: 1rem;
    background: var(--light);
    border-radius: 8px;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: bold;
    color: var(--primary);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--gray);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.pending-match {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--light);
    border-radius: 8px;
    margin-bottom: 0.75rem;
}

.match-teams {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.score {
    font-weight: bold;
    color: var(--primary);
    padding: 0 0.5rem;
}

.ranking-table {
    width: 100%;
    border-collapse: collapse;
}

.ranking-table th,
.ranking-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--light);
}

.ranking-table th {
    background: var(--light);
    font-weight: 600;
}

.ranking-table .highlight {
    background: #d1fae5;
    font-weight: 600;
}

.ranking-table tr:hover {
    background: #f8fafc;
}

.ranking-page {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.ranking-page h2 {
    text-align: center;
    margin-bottom: 0.5rem;
}

.ranking-subtitle {
    text-align: center;
    color: var(--gray);
    margin-bottom: 2rem;
}

.ranking-table-wrapper {
    overflow-x: auto;
}

.ranking-table.full th,
.ranking-table.full td {
    text-align: center;
}

.ranking-table.full .player-name {
    text-align: left;
}

.rank-col {
    width: 60px;
    font-weight: bold;
}

.rating {
    font-weight: bold;
    color: var(--primary);
    font-size: 1.1rem;
}

.top-0 { background: #fff9c4 !important; }
.top-1 { background: #f5f5f5 !important; }
.top-2 { background: #ffe0b2 !important; }

.form-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.match-form {
    display: flex;
    gap: 2rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.team-input {
    flex: 1;
    min-width: 250px;
}

.team-input h3 {
    margin-bottom: 1rem;
    color: var(--primary);
}

.vs-divider {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--gray);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.form-note {
    margin-top: 1.5rem;
    padding: 1rem;
    background: var(--light);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--gray);
}

.pending-matches {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.pending-matches h3 {
    margin-bottom: 1rem;
}

.match-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.match-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--light);
    border-radius: 8px;
    border-left: 4px solid var(--warning);
}

.match-item.confirmed {
    border-left-color: var(--primary);
    opacity: 0.7;
}

.match-info {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.confirmed-badge {
    color: var(--primary);
    font-weight: 500;
}

.confirm-card {
    background: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.match-detail {
    display: flex;
    justify-content: space-around;
    align-items: center;
    margin: 2rem 0;
    padding: 1.5rem;
    background: var(--light);
    border-radius: 12px;
    flex-wrap: wrap;
    gap: 1rem;
}

.team {
    flex: 1;
    min-width: 150px;
}

.team h3 {
    margin-bottom: 0.75rem;
    color: var(--dark);
}

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

.team .players .confirmed {
    color: var(--primary);
}

.team .score {
    font-size: 2rem;
    font-weight: bold;
}

.vs {
    font-size: 2rem;
    font-weight: bold;
    color: var(--gray);
}

.confirm-status {
    margin: 1.5rem 0;
    padding: 1rem;
    background: var(--light);
    border-radius: 8px;
}

.confirm-status .confirmed {
    color: var(--primary);
    font-weight: bold;
}

.confirm-status .pending {
    color: var(--warning);
    font-weight: bold;
}

.note {
    color: var(--gray);
    font-size: 0.9rem;
    margin-top: 1rem;
}

.admin-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.admin-section h2 {
    margin-bottom: 1rem;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
    overflow-x: auto;
    display: block;
}

.admin-table th,
.admin-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--light);
    white-space: nowrap;
}

.admin-table th {
    background: var(--light);
    font-weight: 600;
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.badge-success {
    background: #d1fae5;
    color: var(--primary-dark);
}

.badge-warning {
    background: #fef3c7;
    color: var(--warning);
}

.badge-error {
    background: #fde8e8;
    color: var(--danger);
}

.empty-text {
    color: var(--gray);
    text-align: center;
    padding: 2rem;
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .match-form {
        flex-direction: column;
    }
    
    .vs-divider,
    .vs {
        transform: rotate(90deg);
    }
    
    .stat-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}