/* Estilos Gerais */
:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --info-color: #0891b2;
    --light-bg: #f8fafc;
    --dark-bg: #1e293b;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding-top: 76px;
    color: var(--text-primary);
}

/* Navbar */
.navbar-brand {
    font-weight: 600;
    font-size: 1.1rem;
}

.navbar-nav .btn {
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.navbar-nav .btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Cards */
.card {
    border: none;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card-header {
    border-radius: 16px 16px 0 0 !important;
    font-weight: 600;
    padding: 1.25rem;
}

.card-body {
    padding: 1.5rem;
}

/* Form Controls */
.form-control, .form-select {
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.25);
    outline: none;
}

.form-label {
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* Nav Tabs */
.nav-tabs {
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 0;
}

.nav-tabs .nav-link {
    border: none;
    color: var(--text-secondary);
    font-weight: 500;
    padding: 1rem 1.5rem;
    margin-right: 0.5rem;
    border-radius: 12px 12px 0 0;
    transition: all 0.3s ease;
}

.nav-tabs .nav-link:hover {
    color: var(--primary-color);
    background-color: rgba(37, 99, 235, 0.1);
}

.nav-tabs .nav-link.active {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

/* Tables */
.table {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.table th {
    background-color: var(--light-bg);
    font-weight: 600;
    color: var(--text-primary);
    border: none;
    padding: 1rem;
}

.table td {
    padding: 0.75rem 1rem;
    border-color: var(--border-color);
    vertical-align: middle;
}

.table-sm td, .table-sm th {
    padding: 0.5rem 0.75rem;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
    border: none;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.btn-outline-primary {
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

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

.btn-outline-light {
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .navbar-brand {
        font-size: 0.9rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
    
    .table-responsive {
        font-size: 0.85rem;
    }
    
    .btn {
        padding: 0.4rem 0.8rem;
        font-size: 0.9rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .card-header {
        padding: 1rem;
    }
    
    .nav-tabs .nav-link {
        padding: 0.6rem 0.8rem;
        font-size: 0.8rem;
        margin-right: 0.25rem;
    }
    
    .table th, .table td {
        padding: 0.4rem 0.6rem;
    }
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        left: -100%;
    }
    100% {
        left: 100%;
    }
}

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

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--light-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--secondary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Print Styles */
@media print {
    .navbar, .btn, .nav-tabs {
        display: none !important;
    }
    
    body {
        background: white !important;
        padding-top: 0 !important;
    }
    
    .card {
        box-shadow: none !important;
        border: 1px solid #ddd !important;
    }
    
    .tab-pane {
        display: block !important;
        opacity: 1 !important;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f1f5f9;
        --text-secondary: #cbd5e1;
        --light-bg: #334155;
        --dark-bg: #0f172a;
        --border-color: #475569;
    }
    
    body {
        background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    }
    
    .card {
        background-color: #1e293b;
        color: var(--text-primary);
    }
    
    .form-control, .form-select {
        background-color: #334155;
        border-color: var(--border-color);
        color: var(--text-primary);
    }
    
    .table {
        --bs-table-bg: #1e293b;
        --bs-table-border-color: var(--border-color);
        color: var(--text-primary);
    }
}

/* Accessibility */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Focus styles for keyboard navigation */
.btn:focus, .form-control:focus, .form-select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn, .form-control, .form-select {
        border-width: 3px;
    }
    
    .nav-tabs .nav-link.active {
        border-bottom: 3px solid white;
    }
}