/**
 * Sistema de Agendamento de Descarga
 * Versão: 1.0.0
 * Estilos principais com cores: #1d4777 (azul) e #468630 (verde)
 */

:root {
    --primary-blue: #1d4777;
    --primary-green: #468630;
    --light-blue: #e8f0ff;
    --light-green: #f0f8ed;
    --dark-blue: #0f2d4a;
    --dark-green: #2d5a1a;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #6c757d;
    --dark-gray: #343a40;
    --danger: #dc3545;
    --warning: #ffc107;
    --success: #28a745;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s 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(--dark-gray);
    background: linear-gradient(135deg, var(--light-blue) 0%, var(--light-green) 100%);
    min-height: 100vh;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: var(--white);
    padding: 2rem 0;
    text-align: center;
    box-shadow: var(--box-shadow);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

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

.main-content {
    padding: 3rem 0;
}

/* Cards */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    padding: 2rem;
    margin-bottom: 2rem;
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    border-bottom: 2px solid var(--light-blue);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

.card-title {
    color: var(--primary-blue);
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.card-subtitle {
    color: var(--gray);
    font-size: 1rem;
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--dark-gray);
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
    background-color: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(29, 71, 119, 0.1);
}

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

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23343a40' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m1 6 7 7 7-7'/%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    background-size: 16px 12px;
    appearance: none;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 0.75rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: var(--white);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(29, 71, 119, 0.3);
}

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

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

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

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

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

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

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.1rem;
}

/* Alertas */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    border-left: 4px solid;
}

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

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

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

.alert-info {
    background-color: var(--light-blue);
    border-color: var(--primary-blue);
    color: var(--dark-blue);
}

/* Tabelas */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 1rem;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--white);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--box-shadow);
}

.table th,
.table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e9ecef;
}

.table th {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-green) 100%);
    color: var(--white);
    font-weight: 600;
}

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

/* Status badges */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 4px;
    text-transform: uppercase;
}

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

.badge-warning {
    background-color: var(--warning);
    color: var(--dark-gray);
}

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

.badge-info {
    background-color: var(--primary-blue);
    color: var(--white);
}

/* Loading */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 1s ease-in-out infinite;
}

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

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--white);
    text-align: center;
    padding: 2rem 0;
    margin-top: 3rem;
}

/* Responsividade */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .container {
        padding: 0 0.5rem;
    }
    
    .table th,
    .table td {
        padding: 0.5rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .header {
        padding: 1.5rem 0;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .btn {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    .card {
        padding: 1rem;
    }
}

/* Animações */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

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

/* Calendário personalizado */
.calendar-input {
    position: relative;
}

.calendar-input::after {
    content: '📅';
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

/* Melhorias de acessibilidade */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus visible para navegação por teclado */
.btn:focus-visible,
.form-control:focus-visible {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}