/* CalculaDAS - Custom Styles */
:root {
    --color-primary: #355C7D;
    --color-secondary: #6C5B7B;
    --color-accent-1: #C06C84;
    --color-accent-2: #F67280;
    --color-accent-3: #F8B195;
    --color-light: #f8f9fa;
    --color-dark: #212529;
    --border-radius: 8px;
    --box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

/* Global Styles */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: #f8f9fa;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--color-primary);
}

/* Custom Button Styles */
.btn-primary {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--color-secondary);
    border-color: var(--color-secondary);
    transform: translateY(-2px);
}

.btn-success {
    background-color: #28a745;
    border-color: #28a745;
}

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

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

/* Card Styles */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    transition: var(--transition);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.card-header {
    border-radius: var(--border-radius) var(--border-radius) 0 0 !important;
    border-bottom: none;
    font-weight: 600;
}

.card-header.bg-primary {
    background-color: var(--color-primary) !important;
}

.card-header.bg-success {
    background-color: #28a745 !important;
}

.card-header.bg-warning {
    background-color: #ffc107 !important;
}

/* Form Styles */
.form-control {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    transition: var(--transition);
    padding: 12px 16px;
}

.form-control:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(53, 92, 125, 0.25);
}

.form-select {
    border-radius: var(--border-radius);
    border: 2px solid #e9ecef;
    transition: var(--transition);
    padding: 12px 16px;
}

.form-select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 0.2rem rgba(53, 92, 125, 0.25);
}

.form-check-input:checked {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Info Cards */
.info-card {
    transition: var(--transition);
    background: linear-gradient(135deg, #fff 0%, #f8f9fa 100%);
}

.info-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.info-card .display-4 {
    transition: var(--transition);
}

.info-card:hover .display-4 {
    transform: scale(1.1);
}

/* Navbar */
.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
}

.navbar {
    box-shadow: var(--box-shadow);
}

/* Modal Styles */
.modal-content {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.modal-header {
    border-bottom: 2px solid #e9ecef;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-header .btn-close {
    filter: invert(1);
}

/* Offcanvas */
.offcanvas-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: white;
}

.offcanvas-header .btn-close {
    filter: invert(1);
}

/* Alert Styles */
.alert {
    border-radius: var(--border-radius);
    border: none;
    box-shadow: var(--box-shadow);
}

.alert-info {
    background-color: rgba(53, 92, 125, 0.1);
    color: var(--color-primary);
    border-left: 4px solid var(--color-primary);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    color: #856404;
    border-left: 4px solid #ffc107;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: #721c24;
    border-left: 4px solid #dc3545;
}

/* Results Table */
.results-table {
    margin-bottom: 0;
}

.results-table th {
    background-color: var(--color-primary);
    color: white;
    border: none;
    font-weight: 600;
}

.results-table td {
    border-color: #e9ecef;
    padding: 12px;
}

.results-table .total-row {
    background-color: rgba(53, 92, 125, 0.1);
    font-weight: 600;
    color: var(--color-primary);
}

/* History Items */
.history-item {
    border-left: 4px solid var(--color-primary);
    background-color: rgba(53, 92, 125, 0.05);
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    transition: var(--transition);
}

.history-item:hover {
    background-color: rgba(53, 92, 125, 0.1);
    transform: translateX(5px);
}

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

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

/* Ad Container */
.ad-container {
    background-color: #f8f9fa;
    border: 1px dashed #dee2e6;
    border-radius: var(--border-radius);
    padding: 20px;
    margin: 20px 0;
    min-height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.ad-container::before {
    content: "Publicidade";
    color: #6c757d;
    font-size: 0.8rem;
    position: absolute;
    top: 5px;
    left: 10px;
}

/* Footer */
footer {
    background: linear-gradient(135deg, var(--color-light) 0%, #e9ecef 100%);
    border-top: 1px solid #dee2e6;
}
.footer_link {
    color: var(--color-primary);
    text-decoration: none;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding-left: 15px;
        padding-right: 15px;
    }
    
    .card {
        margin-bottom: 20px;
    }
    
    .btn-lg {
        padding: 12px 20px;
        font-size: 1.1rem;
    }
    
    .info-card .display-4 {
        font-size: 2.5rem;
    }
    
    .modal-dialog {
        margin: 10px;
    }
    
    .offcanvas {
        width: 90% !important;
    }
}

@media (max-width: 576px) {
    .navbar-brand {
        font-size: 1.2rem;
    }
    
    .card-body {
        padding: 15px;
    }
    
    .btn {
        font-size: 0.9rem;
    }
    
    .info-card .display-4 {
        font-size: 2rem;
    }
    
    .form-control,
    .form-select {
        padding: 10px 12px;
    }
}

/* Dark mode support (future enhancement) */
@media (prefers-color-scheme: dark) {
    :root {
        --color-light: #212529;
        --color-dark: #f8f9fa;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .card {
        border: 2px solid var(--color-primary);
    }
    
    .btn {
        border-width: 2px;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print styles */
@media print {
    .navbar,
    .btn,
    .ad-container,
    footer {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    body {
        background-color: white !important;
    }
}

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

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

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

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--color-primary);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
    z-index: 1000;
}

.skip-link:focus {
    top: 0;
}

/* Utility classes */
.text-primary-custom {
    color: var(--color-primary) !important;
}

.bg-primary-custom {
    background-color: var(--color-primary) !important;
}

.border-primary-custom {
    border-color: var(--color-primary) !important;
}

.shadow-custom {
    box-shadow: var(--box-shadow) !important;
}

.rounded-custom {
    border-radius: var(--border-radius) !important;
}

/* 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-right {
    animation: slideInRight 0.3s ease-out;
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Success and error states */
.form-control.is-valid {
    border-color: #28a745;
}

.form-control.is-invalid {
    border-color: #dc3545;
}

.form-select.is-valid {
    border-color: #28a745;
}

.form-select.is-invalid {
    border-color: #dc3545;
}

/* Loading overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 5px solid rgba(255, 255, 255, 0.3);
    border-top: 5px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}