/* ============================================
   Sistema de Reservas - Estilos Gerais
   ============================================ */

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

:root {
    --primary-color: #007bff;
    --secondary-color: #6c757d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --border-radius: 8px;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

html {
    font-size: 16px;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ============================================
   Header
   ============================================ */

.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-bottom: 40px;
    box-shadow: var(--shadow);
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.95;
}

/* ============================================
   Main Content
   ============================================ */

.main-content {
    min-height: calc(100vh - 300px);
    padding: 20px 0;
}

.content-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

/* ============================================
   Seções
   ============================================ */

section {
    background: white;
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

section h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
    color: var(--dark-color);
    border-bottom: 3px solid var(--primary-color);
    padding-bottom: 10px;
}

/* ============================================
   Calendário
   ============================================ */

.calendar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.calendar-header h3 {
    font-size: 1.3rem;
    color: var(--dark-color);
}

.nav-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.nav-btn:hover {
    background-color: #0056b3;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
    margin-bottom: 10px;
}

.weekday {
    text-align: center;
    font-weight: 700;
    color: var(--primary-color);
    padding: 10px;
    background-color: var(--light-color);
    border-radius: 4px;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 5px;
}

.day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #ddd;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    background-color: white;
    color: var(--dark-color);
}

.day:not(.empty):not(.disabled):hover {
    border-color: var(--primary-color);
    background-color: #e7f3ff;
    transform: scale(1.05);
}

.day.empty {
    cursor: default;
    background-color: transparent;
    border: none;
}

.day.disabled {
    background-color: var(--light-color);
    color: var(--secondary-color);
    cursor: not-allowed;
    border-color: #ccc;
}

.day.selected {
    background-color: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* ============================================
   Formulário
   ============================================ */

.reservation-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.error-text {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 4px;
}

/* ============================================
   Botões
   ============================================ */

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 123, 255, 0.3);
}

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

.btn-secondary:hover {
    background-color: #5a6268;
}

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

.btn-success:hover {
    background-color: #218838;
}

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

.btn-danger:hover {
    background-color: #c82333;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.875rem;
}

/* ============================================
   Mensagens
   ============================================ */

.message {
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.message-success {
    background-color: #d4edda;
    color: #155724;
    border-color: var(--success-color);
}

.message-error {
    background-color: #f8d7da;
    color: #721c24;
    border-color: var(--danger-color);
}

.message-warning {
    background-color: #fff3cd;
    color: #856404;
    border-color: var(--warning-color);
}

.message-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: var(--primary-color);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    background-color: var(--dark-color);
    color: white;
    text-align: center;
    padding: 20px;
    margin-top: 40px;
}

/* ============================================
   Tabelas
   ============================================ */

.table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
}

.table thead {
    background-color: var(--light-color);
}

.table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid #ddd;
}

.table td {
    padding: 12px;
    border-bottom: 1px solid #ddd;
}

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

/* ============================================
   Admin Dashboard
   ============================================ */

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.dashboard-header h1 {
    font-size: 2rem;
    color: var(--dark-color);
}

.user-info {
    text-align: right;
}

.user-info p {
    margin: 5px 0;
}

.logout-btn {
    background-color: var(--danger-color);
    color: white;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.logout-btn:hover {
    background-color: #c82333;
}

.admin-nav {
    background-color: var(--dark-color);
    padding: 0;
    margin-bottom: 30px;
    border-radius: var(--border-radius);
    overflow: hidden;
}

.admin-nav ul {
    list-style: none;
    display: flex;
}

.admin-nav li {
    flex: 1;
}

.admin-nav a {
    display: block;
    padding: 15px;
    color: white;
    text-decoration: none;
    text-align: center;
    transition: background-color 0.3s ease;
    border-bottom: 3px solid transparent;
}

.admin-nav a:hover,
.admin-nav a.active {
    background-color: var(--primary-color);
    border-bottom-color: #0056b3;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.stat-card h3 {
    font-size: 0.875rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.stat-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* ============================================
   Responsivo
   ============================================ */

@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .content-wrapper {
        grid-template-columns: 1fr;
    }
    
    .admin-nav ul {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    section {
        padding: 20px;
    }
    
    .calendar-header {
        flex-direction: column;
        gap: 10px;
    }
    
    .dashboard-header {
        flex-direction: column;
        gap: 20px;
        align-items: flex-start;
    }
    
    .user-info {
        text-align: left;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.5rem;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    section h2 {
        font-size: 1.2rem;
    }
    
    .calendar-days {
        gap: 2px;
    }
    
    .day {
        font-size: 0.875rem;
    }
    
    .table {
        font-size: 0.875rem;
    }
    
    .table th,
    .table td {
        padding: 8px;
    }
}