/* Sports Academy CSS - Flat UI Theme */
:root {
    --primary-color: #ff6b35;
    --primary-dark: #e55a2b;
    --primary-light: #ff8c69;
    --secondary-color: #2c3e50;
    --accent-color: #f39c12;
    --success-color: #2ecc71;
    --warning-color: #f1c40f;
    --danger-color: #e74c3c;
    --info-color: #3498db;
    --light-gray: #f5f7fa;
    --dark-gray: #7f8c8d;
    --white: #ffffff;
    --black: #2c3e50;
    --border-radius: 4px;
    --box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    --transition: all 0.2s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--black);
    background-color: #f5f7fa;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    margin-bottom: 1rem;
    font-weight: 600;
    line-height: 1.2;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    line-height: 1;
}

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

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: var(--dark-gray);
}

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

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

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

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

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-full {
    width: 100%;
}

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

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #e1e8ed;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.form-grid .full-width {
    grid-column: 1 / -1;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 3px solid;
}

.alert-success {
    background-color: #e8f8f0;
    color: #155724;
    border-left-color: var(--success-color);
}

.alert-error {
    background-color: #fdf1f0;
    color: #721c24;
    border-left-color: var(--danger-color);
}

.alert-warning {
    background-color: #fef9e7;
    color: #856404;
    border-left-color: var(--warning-color);
}

.alert-info {
    background-color: #e9f7fe;
    color: #0c5460;
    border-left-color: var(--info-color);
}

/* Tables */
.table-container {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    margin-bottom: 2rem;
    width: 100%;
    overflow-x: auto;
}

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

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid #e1e8ed;
}

.data-table th {
    background-color: var(--light-gray);
    font-weight: 600;
    color: var(--black);
}

.data-table tr:hover {
    background-color: #f8f9fa;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-header {
    border-bottom: 1px solid #e1e8ed;
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

/* Login Page */
.login-page {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-form {
    background: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

.logo {
    text-align: center;
    margin-bottom: 2rem;
}

.academy-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 1rem;
}

.login-footer {
    text-align: center;
    margin-top: 1rem;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Sport Badges */
.sport-badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-transform: uppercase;
}

.sport-badge.football {
    background-color: #e8f5e8;
    color: #2d5a2d;
}

.sport-badge.handball {
    background-color: #e8f0ff;
    color: #1a4480;
}

/* Student Photos */
.student-photo-small {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.no-photo {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--dark-gray);
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.pagination a {
    padding: 8px 12px;
    border: 1px solid #e1e8ed;
    border-radius: var(--border-radius);
    text-decoration: none;
    color: var(--black);
    transition: var(--transition);
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .data-table {
        font-size: 14px;
    }
    
    .data-table th,
    .data-table td {
        padding: 8px 12px;
    }
    
    .btn {
        padding: 8px 16px;
        font-size: 14px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
}

@media (max-width: 480px) {
    .login-container {
        padding: 1rem;
    }
    
    .login-form {
        padding: 1.5rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    .btn {
        padding: 8px 12px;
        font-size: 13px;
    }
}

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

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

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }

.w-full { width: 100%; }
.h-full { height: 100%; }