/* Reset e variáveis */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #ea580c;
    --dark-color: #1f2937;
    --light-color: #f3f4f6;
    --border-color: #e5e7eb;
    --text-color: #374151;
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header h1 {
    font-size: 1.5rem;
}

.header nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.header nav a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.3s;
}

.header nav a:hover {
    opacity: 0.8;
}

.logout-btn {
    background: rgba(255,255,255,0.2);
    border: 1px solid white;
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.3s;
}

.logout-btn:hover {
    background: rgba(255,255,255,0.3);
}

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.card h3 {
    color: var(--dark-color);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.card .value {
    font-size: 2.2rem;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0.5rem 0;
    line-height: 1;
}

.card .label {
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

/* Card Icons */
.card-icon {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    opacity: 0.7;
}

/* Card Variants */
.card-primary::before { background: var(--primary-color); }
.card-success::before { background: var(--success-color); }
.card-warning::before { background: var(--warning-color); }
.card-danger::before { background: var(--danger-color); }
.card-info::before { background: #3b82f6; }
.card-secondary::before { background: #6b7280; }
.card-light::before { background: #e5e7eb; }

.card-primary .value { color: var(--primary-color); }
.card-success .value { color: var(--success-color); }
.card-warning .value { color: var(--warning-color); }
.card-danger .value { color: var(--danger-color); }
.card-info .value { color: #3b82f6; }
.card-secondary .value { color: #6b7280; }
.card-light .value { color: #374151; }

/* Card Footer */
.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e5e7eb;
}

.trend {
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.trend.positive {
    background: #d1fae5;
    color: #065f46;
}

.trend.negative {
    background: #fee2e2;
    color: #991b1b;
}

.trend.neutral {
    background: #f3f4f6;
    color: #374151;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.3s;
    text-align: center;
}

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

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

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

.btn-success:hover {
    background: #15803d;
}

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

.btn-danger:hover {
    background: #b91c1c;
}

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

.btn-secondary {
    background: #6b7280;
    color: white;
}

.btn-secondary:hover {
    background: #4b5563;
}

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

/* Formulários */
.form-group {
    margin-bottom: 1.2rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-weight: 500;
    color: var(--dark-color);
}

.form-control {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
}

select.form-control {
    cursor: pointer;
}

/* Tabelas */
.table-container {
    background: white;
    border-radius: 10px;
    padding: 1.5rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    overflow-x: auto;
}

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

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

table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--dark-color);
    border-bottom: 2px solid var(--border-color);
}

table td {
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

table tbody tr:hover {
    background: #fafafa;
}

.badge {
    padding: 0.3rem 0.7rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-warning {
    background: #fed7aa;
    color: #9a3412;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

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

.login-box {
    background: white;
    padding: 2.5rem;
    border-radius: 10px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
    width: 100%;
    max-width: 400px;
}

.login-box h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
}

.login-box .logo {
    text-align: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--primary-color);
    font-weight: bold;
}

/* Mensagens de alerta */
.alert {
    padding: 1rem;
    border-radius: 5px;
    margin-bottom: 1rem;
}

.alert-success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #6ee7b7;
}

.alert-error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

.alert-info {
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #93c5fd;
}

/* Toolbar de ações */
.toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.search-box {
    flex: 1;
    min-width: 250px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
}

.modal-content {
    background: white;
    margin: 5% auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 600px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.close-modal {
    font-size: 2rem;
    cursor: pointer;
    color: #6b7280;
}

.close-modal:hover {
    color: var(--danger-color);
}

/* Responsividade */
@media (max-width: 768px) {
    .header .container {
        flex-direction: column;
        gap: 1rem;
    }

    .header nav ul {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .cards-grid {
        grid-template-columns: 1fr;
    }

    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar form {
        grid-template-columns: 1fr !important;
        gap: 1rem !important;
    }

    table {
        font-size: 0.85rem;
    }

    table th, table td {
        padding: 0.5rem;
    }

    .actions {
        flex-direction: column;
        gap: 0.25rem;
    }

    .actions .btn {
        width: 100%;
        text-align: center;
    }

    .card-footer {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }

    .card-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 10px;
    }

    .card {
        padding: 1rem;
    }

    .card .value {
        font-size: 1.8rem;
    }

    .card-icon {
        font-size: 1.5rem;
    }

    .page-header h2 {
        font-size: 1.5rem;
    }

    table {
        font-size: 0.8rem;
    }

    .modal-content {
        margin: 2% auto;
        padding: 1.5rem;
        width: 95%;
    }
}

/* Título da página */
.page-header {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 1.5rem;
}

.page-header h2 {
    color: var(--dark-color);
    font-size: 1.8rem;
}

/* Actions em tabelas */
.actions {
    display: flex;
    gap: 0.5rem;
}

.actions a, .actions button {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}