/* ============= GLOBAL STYLES ============= */
:root {
    --primary-color: #0d6efd;
    --secondary-color: #6c757d;
    --success-color: #198754;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --light-bg: #f8f9fa;
    --border-color: #dee2e6;
    --shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --shadow-lg: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    --border-radius: 0.5rem;
    --transition: all 0.3s ease;
}

* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

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

/* ============= CARD STYLES ============= */
.card {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    background: white;
    overflow: hidden;
    transition: var(--transition);
}

.card:hover {
    box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.2);
}

.card-header {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    padding: 1.5rem;
    border: none;
}

.card-body {
    padding: 2rem;
}

h2 {
    color: #2c3e50;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
}

/* ============= FORM STYLES ============= */
.form-label {
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.form-control,
.form-select {
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.625rem 0.75rem;
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
    outline: none;
}

.form-control:disabled {
    background-color: #e9ecef;
    opacity: 0.6;
}

/* ============= BUTTON STYLES ============= */
.btn {
    border-radius: 0.375rem;
    padding: 0.625rem 1.5rem;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    box-shadow: 0 4px 6px rgba(13, 110, 253, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0056b3 0%, #004085 100%);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(13, 110, 253, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

/* ============= AUTOCOMPLETE STYLES ============= */
.autocomplete-list {
    position: absolute;
    z-index: 9999;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    width: 100%;
    max-height: 250px;
    overflow-y: auto;
    display: none;
    box-shadow: var(--shadow-lg);
    margin-top: 0.25rem;
}

.autocomplete-list.show {
    display: block;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.autocomplete-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    transition: var(--transition);
}

.autocomplete-item:last-child {
    border-bottom: none;
}

.autocomplete-item:hover {
    background: linear-gradient(90deg, #e3f2fd 0%, #f5f5f5 100%);
    padding-left: 1.25rem;
}

.autocomplete-item.text-muted {
    color: var(--secondary-color);
    font-style: italic;
}

.autocomplete-item.text-danger {
    color: var(--danger-color);
    font-weight: 500;
}

/* ============= SEARCHABLE DROPDOWN STYLES ============= */
.searchable-select-wrapper {
    position: relative;
}

.searchable-select-input {
    width: 100%;
    padding: 0.625rem 2.5rem 0.625rem 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 1rem;
    line-height: 1.5;
    background-color: #fff;
    cursor: pointer;
    transition: var(--transition);
}

.searchable-select-input:hover {
    border-color: var(--primary-color);
}

.searchable-select-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.searchable-select-input.searching {
    cursor: text;
    border-color: var(--primary-color);
}

.searchable-select-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 1050;
    background: white;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    margin-top: 0.25rem;
    max-height: 250px;
    overflow: hidden;
    display: none;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
}

.searchable-select-dropdown.show {
    display: block;
}

.searchable-select-search {
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    position: sticky;
    top: 0;
    z-index: 10;
}

.searchable-select-search input {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.375rem;
    font-size: 0.9rem;
    transition: var(--transition);
}

.searchable-select-search input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.searchable-select-options {
    max-height: 200px;
    overflow-y: auto;
}

.searchable-select-options::-webkit-scrollbar {
    width: 8px;
}

.searchable-select-options::-webkit-scrollbar-track {
    background: #f1f1f1;
}

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

.searchable-select-options::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

.searchable-select-option {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid #f0f0f0;
    transition: var(--transition);
    font-size: 0.9rem;
    line-height: 1.4;
}

.searchable-select-option:last-child {
    border-bottom: none;
}

.searchable-select-option:hover,
.searchable-select-option.highlighted {
    background: linear-gradient(90deg, #e3f2fd 0%, #f5f5f5 100%);
    padding-left: 1rem;
}

.searchable-select-option.selected {
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    font-weight: 600;
}

.searchable-select-option.selected::after {
    content: " ✓";
    float: right;
    font-weight: bold;
}

.searchable-select-arrow {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    transition: transform 0.3s ease;
    color: var(--secondary-color);
    font-size: 0.875rem;
}

.searchable-select-wrapper.open .searchable-select-arrow {
    transform: translateY(-50%) rotate(180deg);
    color: var(--primary-color);
}

.searchable-select-no-results {
    padding: 1rem;
    text-align: center;
    color: var(--secondary-color);
    font-size: 0.9rem;
    font-style: italic;
}

/* ============= MULTI-SELECT STYLES ============= */
.searchable-select-wrapper.multi-select .searchable-select-input {
    min-height: 38px;
    max-height: 100px;
    padding: 0.25rem 2.5rem 0.25rem 0.5rem;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem;
    overflow-y: auto;
}

.searchable-select-wrapper.multi-select .searchable-select-input::-webkit-scrollbar {
    width: 6px;
}

.searchable-select-wrapper.multi-select .searchable-select-input::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.searchable-select-wrapper.multi-select .searchable-select-input::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 3px;
}

.searchable-select-wrapper.multi-select .searchable-select-input::-webkit-scrollbar-thumb:hover {
    background: #0056b3;
}

.searchable-select-wrapper.multi-select .searchable-select-input:empty::before {
    content: attr(placeholder);
    color: var(--secondary-color);
}

.selected-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.5rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, #0056b3 100%);
    color: white;
    border-radius: 0.25rem;
    font-size: 0.8rem;
    gap: 0.25rem;
    font-weight: 500;
    box-shadow: 0 1px 3px rgba(13, 110, 253, 0.3);
    max-width: 100%;
    word-break: break-word;
    line-height: 1.3;
}

.selected-chip .chip-remove {
    cursor: pointer;
    font-weight: bold;
    padding: 0 0.25rem;
    border-radius: 0.125rem;
    transition: var(--transition);
    font-size: 1.1rem;
    line-height: 1;
}

.selected-chip .chip-remove:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: scale(1.2);
}

.searchable-select-wrapper.multi-select .searchable-select-input input {
    flex: 1;
    min-width: 100px;
    border: none;
    outline: none;
    padding: 0.375rem;
    background: transparent;
    cursor: text;
    font-size: 1rem;
}

.searchable-select-wrapper.multi-select .searchable-select-input input:focus {
    outline: none;
}

/* ============= LOADING STYLES ============= */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 20px;
    height: 20px;
    border: 3px solid #f3f3f3;
    border-top: 3px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
    display: inline-block;
}

.select-loading {
    position: relative;
}

.select-loading::after {
    content: '';
    position: absolute;
    right: 30px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    border: 2px solid #f3f3f3;
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: translateY(-50%) rotate(0deg); }
    100% { transform: translateY(-50%) rotate(360deg); }
}

/* ============= RESPONSIVE STYLES ============= */
@media (max-width: 768px) {
    body {
        padding: 1rem 0.5rem;
    }
    
    .card-body {
        padding: 1.5rem;
    }
    
    h2 {
        font-size: 1.5rem;
        margin-bottom: 1.5rem;
    }
    
    .form-label {
        font-size: 0.9rem;
    }
    
    .form-control,
    .form-select,
    .searchable-select-input {
        font-size: 0.95rem;
        padding: 0.5rem 0.625rem;
    }
    
    .btn {
        width: 100%;
        padding: 0.75rem;
        font-size: 1rem;
    }
    
    .row {
        margin: 0;
    }
    
    .row > [class*="col-"] {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
    
    .mb-3 {
        margin-bottom: 1rem !important;
    }
}

@media (max-width: 576px) {
    body {
        padding: 0.5rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    h2 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }
    
    .searchable-select-dropdown {
        max-height: 250px;
    }
    
    .autocomplete-list {
        max-height: 200px;
    }
}

/* ============= UTILITY CLASSES ============= */
.position-relative {
    position: relative;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: var(--secondary-color);
}

.text-danger {
    color: var(--danger-color);
}

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

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

/* ============= ANIMATIONS ============= */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.card {
    animation: fadeIn 0.5s ease;
}

/* ============= TOTAL TARIF RS STYLES ============= */
#total_tarif_rs {
    font-weight: 700;
    color: #198754;
    font-size: 1.25rem;
    text-align: right;
    letter-spacing: 0.5px;
}

.input-group-text {
    background: linear-gradient(135deg, var(--success-color) 0%, #146c43 100%);
    color: white;
    font-weight: 600;
    border: none;
}

.input-group .form-control:focus {
    border-color: var(--success-color);
    box-shadow: 0 0 0 0.25rem rgba(25, 135, 84, 0.25);
}

/* ============= FOCUS VISIBLE ============= */
*:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ============= PRINT STYLES ============= */
@media print {
    body {
        background: white;
        padding: 0;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #ddd;
    }
    
    .btn,
    .searchable-select-arrow,
    .autocomplete-list {
        display: none;
    }
}