/* Custom CSS for Sports Championship Management */
:root {
    --primary-blue: #87CEEB;
    --primary-gold: #FFD700;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --white: #FFFFFF;
    --success: #27AE60;
    --danger: #E74C3C;
    --warning: #F39C12;
    --border-light: #E8F4FD;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    color: var(--text-dark);
    min-height: 100vh;
}

/* Header Styles */
.navbar {
    background: linear-gradient(135deg, var(--primary-blue), #5DADE2);
    border-bottom: 3px solid var(--primary-gold);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--white) !important;
    text-shadow: 0 1px 2px rgba(0,0,0,0.3);
}

.navbar-nav .nav-link {
    color: var(--white) !important;
    font-weight: 500;
    transition: all 0.3s ease;
    margin: 0 5px;
    padding: 8px 15px !important;
    border-radius: 20px;
}

.navbar-nav .nav-link:hover {
    background-color: rgba(255,255,255,0.2);
    transform: translateY(-1px);
}

/* Main Container */
.container {
    margin-top: 30px;
}

/* Page Headers */
.page-header {
    background: linear-gradient(135deg, var(--white), var(--border-light));
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-left: 5px solid var(--primary-gold);
}

.page-header h1 {
    color: var(--text-dark);
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 15px;
}

.page-header .page-subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 10px;
}

/* Cards */
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
    background: var(--white);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-blue), #5DADE2);
    color: var(--white);
    border-radius: 15px 15px 0 0 !important;
    padding: 20px;
    font-weight: 600;
    border-bottom: 3px solid var(--primary-gold);
}

.card-body {
    padding: 30px;
}

/* Statistics Cards */
.stat-card {
    background: linear-gradient(135deg, var(--white), var(--border-light));
    border-left: 5px solid var(--primary-gold);
    border-radius: 10px;
    padding: 25px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    margin: 0;
}

.stat-label {
    color: var(--text-light);
    font-size: 1.1rem;
    margin-top: 5px;
}

.stat-icon {
    font-size: 3rem;
    color: var(--primary-gold);
    opacity: 0.8;
}

/* Forms */
.form-group {
    margin-bottom: 25px;
}

.form-label {
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 8px;
    display: block;
}

.form-control {
    border: 2px solid var(--border-light);
    border-radius: 10px;
    padding: 12px 15px;
    transition: all 0.3s ease;
    background-color: var(--white);
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(135, 206, 235, 0.25);
    background-color: var(--white);
}

.form-control.is-invalid {
    border-color: var(--danger);
}

.invalid-feedback {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 5px;
}

/* Buttons */
.btn {
    font-weight: 600;
    padding: 12px 25px;
    border-radius: 25px;
    transition: all 0.3s ease;
    border: none;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-size: 0.9rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), #5DADE2);
    color: var(--white);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #5DADE2, var(--primary-blue));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(135, 206, 235, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, var(--success), #2ECC71);
    color: var(--white);
}

.btn-success:hover {
    background: linear-gradient(135deg, #2ECC71, var(--success));
    transform: translateY(-2px);
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger), #EC7063);
    color: var(--white);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #EC7063, var(--danger));
    transform: translateY(-2px);
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning), #F7DC6F);
    color: var(--white);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #F7DC6F, var(--warning));
    transform: translateY(-2px);
}

.btn-outline-secondary {
    border: 2px solid var(--text-light);
    color: var(--text-light);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--text-light);
    color: var(--white);
}

/* Tables */
.table {
    background: var(--white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.table thead th {
    background: linear-gradient(135deg, var(--primary-blue), #5DADE2);
    color: var(--white);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border: none;
    padding: 15px;
}

.table tbody td {
    padding: 15px;
    vertical-align: middle;
    border-top: 1px solid var(--border-light);
}

.table tbody tr:hover {
    background-color: rgba(135, 206, 235, 0.1);
}

/* Alerts */
.alert {
    border: none;
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 20px;
    font-weight: 500;
}

.alert-success {
    background: linear-gradient(135deg, rgba(39, 174, 96, 0.1), rgba(46, 204, 113, 0.1));
    color: var(--success);
    border-left: 4px solid var(--success);
}

.alert-danger {
    background: linear-gradient(135deg, rgba(231, 76, 60, 0.1), rgba(236, 112, 99, 0.1));
    color: var(--danger);
    border-left: 4px solid var(--danger);
}

.alert-warning {
    background: linear-gradient(135deg, rgba(243, 156, 18, 0.1), rgba(247, 220, 111, 0.1));
    color: var(--warning);
    border-left: 4px solid var(--warning);
}

/* Search */
.search-container {
    background: var(--white);
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 20px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.empty-state-icon {
    font-size: 4rem;
    color: var(--primary-gold);
    margin-bottom: 20px;
}

.empty-state h3 {
    color: var(--text-dark);
    margin-bottom: 10px;
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 30px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .page-header {
        padding: 20px;
        text-align: center;
    }
    
    .page-header h1 {
        font-size: 1.5rem;
        justify-content: center;
    }
    
    .card-body {
        padding: 20px;
    }
    
    .stat-card {
        text-align: center;
        margin-bottom: 15px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.8rem;
    }
    
    .table-responsive {
        border-radius: 10px;
    }
}

/* Loading Animation */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

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

/* Custom Icons */
.icon-trophy::before {
    content: "🏆";
    font-size: 1.5em;
    margin-right: 10px;
}

.icon-team::before {
    content: "👥";
    font-size: 1.5em;
    margin-right: 10px;
}

.icon-stadium::before {
    content: "🏟️";
    font-size: 1.5em;
    margin-right: 10px;
}

.icon-championship::before {
    content: "🏆";
    font-size: 1.5em;
    margin-right: 10px;
}

/* Badge Styles */
.badge {
    font-size: 0.75rem;
    padding: 6px 12px;
    border-radius: 20px;
    font-weight: 600;
}

.badge-status-planejado {
    background: linear-gradient(135deg, #3498DB, #5DADE2);
    color: var(--white);
}

.badge-status-em-andamento {
    background: linear-gradient(135deg, var(--success), #2ECC71);
    color: var(--white);
}

.badge-status-finalizado {
    background: linear-gradient(135deg, var(--text-light), #95A5A6);
    color: var(--white);
}

.badge-status-cancelado {
    background: linear-gradient(135deg, var(--danger), #EC7063);
    color: var(--white);
}