/* ==========================================================================
   Reusable UI Component Styles (Cards, Buttons, Modals, Forms, Tables, Tabs)
   ========================================================================== */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.btn-primary {
    background-color: var(--primary);
    color: #ffffff;
    box-shadow: var(--shadow-glow);
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--border-color);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--border-card);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
}
.btn-danger:hover {
    background-opacity: 0.9;
}

.btn-icon {
    padding: 0.5rem;
    border-radius: var(--border-radius-sm);
    background-color: var(--border-card);
    color: var(--text-muted);
    cursor: pointer;
    transition: all var(--transition-fast);
}
.btn-icon:hover {
    background-color: var(--border-color);
    color: var(--text-main);
}

/* Badge System */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    border-radius: var(--border-radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1.25;
    background-color: var(--badge-bg, var(--border-color));
    color: var(--badge-color, var(--text-muted));
}

/* Modals & Backdrop Blur */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
}

.modal-overlay.open,
.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 550px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: transform var(--transition-base);
}

.modal-overlay.open .modal-container,
.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Card Elements */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-card);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* Stepper Layout */
.stepper-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    position: relative;
}

.stepper-header::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--border-color);
    z-index: 1;
    transform: translateY(-50%);
}

.step-node {
    width: 32px;
    height: 32px;
    border-radius: var(--border-radius-full);
    background-color: var(--bg-app);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    z-index: 2;
    transition: all var(--transition-base);
}

.step-node.active {
    background-color: var(--primary);
    border-color: var(--primary);
    color: var(--text-inverse);
    box-shadow: var(--shadow-glow);
}

.step-node.completed {
    background-color: var(--success);
    border-color: var(--success);
    color: #ffffff;
}

/* Form Inputs */
.form-group {
    margin-bottom: 1.25rem;
}

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

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-sm);
    background-color: var(--bg-app);
    border: 1px solid var(--border-color);
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(var(--primary-h), var(--primary-s), var(--primary-l), 0.15);
}

/* Modern Dynamic Tab Layout */
.tab-container {
    display: flex;
    flex-direction: column;
}

.tab-nav {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    white-space: nowrap;
}

.tab-link {
    padding: 0.75rem 1rem;
    font-weight: 500;
    color: var(--text-muted);
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.tab-link:hover {
    color: var(--text-main);
}

.tab-link.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

/* Responsive Table */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.table th, .table td {
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    background-color: var(--border-card);
}

.table tbody tr:hover {
    background-color: rgba(var(--primary-h), var(--primary-s), var(--primary-l), 0.02);
}

/* Vertical Timeline */
.timeline {
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 7px;
    height: 100%;
    width: 2px;
    background-color: var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.timeline-marker {
    position: absolute;
    left: -2rem;
    top: 4px;
    width: 16px;
    height: 16px;
    border-radius: var(--border-radius-full);
    border: 2px solid var(--bg-card);
    background-color: var(--primary);
    box-shadow: 0 0 0 3px var(--border-color);
}

.timeline-item.success .timeline-marker { background-color: var(--success); }
.timeline-item.warning .timeline-marker { background-color: var(--warning); }
.timeline-item.danger .timeline-marker { background-color: var(--danger); }

.timeline-content {
    background-color: var(--border-card);
    padding: 1rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--border-color);
}

/* Dropdown drawer overlay styles */
.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-lg);
    border-radius: var(--border-radius-md);
    min-width: 200px;
    padding: 0.5rem 0;
    display: none;
    z-index: 100;
}

.dropdown-menu.show {
    display: block;
    animation: slideDown 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.dropdown-item {
    padding: 0.625rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-main);
}

.dropdown-item:hover {
    background-color: var(--border-card);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Quick Date-Time Helper Presets */
.quick-dt-presets-container {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 5px;
    margin-top: 6px;
    padding: 2px 0;
}
.quick-dt-label {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-right: 2px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.quick-dt-chip {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 0.725rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    user-select: none;
    line-height: 1.2;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}
.quick-dt-chip:hover {
    background: #2563eb;
    color: #ffffff;
    border-color: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}
.quick-dt-chip-time {
    background: rgba(245, 124, 0, 0.1);
    color: #d97706;
    border-color: rgba(245, 124, 0, 0.3);
}
.quick-dt-chip-time:hover {
    background: #d97706;
    color: #ffffff;
    border-color: #d97706;
    box-shadow: 0 2px 6px rgba(217, 119, 6, 0.25);
}
.quick-dt-chip-plus {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
    border-color: rgba(16, 185, 129, 0.3);
}
.quick-dt-chip-plus:hover {
    background: #059669;
    color: #ffffff;
    border-color: #059669;
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.25);
}
[data-theme="dark"] .quick-dt-chip {
    background: rgba(59, 130, 246, 0.18);
    color: #60a5fa;
    border-color: rgba(96, 165, 250, 0.35);
}
[data-theme="dark"] .quick-dt-chip:hover {
    background: #3b82f6;
    color: #ffffff;
}
[data-theme="dark"] .quick-dt-chip-time {
    background: rgba(245, 124, 0, 0.18);
    color: #fbbf24;
    border-color: rgba(251, 191, 36, 0.35);
}
[data-theme="dark"] .quick-dt-chip-time:hover {
    background: #f57c00;
    color: #ffffff;
}
[data-theme="dark"] .quick-dt-chip-plus {
    background: rgba(16, 185, 129, 0.18);
    color: #34d399;
    border-color: rgba(52, 211, 153, 0.35);
}
[data-theme="dark"] .quick-dt-chip-plus:hover {
    background: #10b981;
    color: #ffffff;
}