/* Dark mode customizations */
:root {
    --bs-body-bg: #f9f9f9;
    --bs-body-color: #212529;
    --sidebar-bg: #f8f9fa;
    --sidebar-border: #ddd;
    --card-header-bg: #f8f9fa;
    --nav-link-hover: rgba(0, 0, 0, 0.05);
    --toast-bg: rgba(255, 255, 255, 0.95);
    
    /* For smooth transitions between themes */
    --theme-transition-time: 0.15s;
}

/* Prevent flash of incorrect theme */
html:not(.theme-initialized) {
    visibility: hidden;
}

/* Ensure background colors are applied correctly */
html[data-bs-theme="dark"] {
    background-color: #212529;
}

html[data-bs-theme="light"] {
    background-color: #f9f9f9;
}

/* Apply transition for non-background properties only to reduce the flash effect */
html.theme-initialized * {
    transition: color var(--theme-transition-time) ease,
                border-color var(--theme-transition-time) ease,
                box-shadow var(--theme-transition-time) ease;
}

/* Add specific background transition for elements where it's beneficial */
.card,
.modal-content,
.sidebar,
.navbar,
.form-control,
.btn,
.alert,
.toast {
    transition: background-color var(--theme-transition-time) ease, 
                color var(--theme-transition-time) ease,
                border-color var(--theme-transition-time) ease;
}

[data-bs-theme="dark"] {
    --bs-body-bg: #212529;
    --bs-body-color: #f8f9fa;
    --sidebar-bg: #343a40;
    --sidebar-border: #495057;
    --card-header-bg: #343a40;
    --nav-link-hover: rgba(255, 255, 255, 0.1);
    --toast-bg: rgba(33, 37, 41, 0.95);
    
    /* Additional dark mode overrides for Bootstrap components */
    --bs-primary: #3d8bfd;
    --bs-secondary: #6c757d;
    --bs-success: #42ba96;
    --bs-info: #39a0ed;
    --bs-warning: #ffc107;
    --bs-danger: #e35d6a;
    --bs-light: #f8f9fa;
    --bs-dark: #212529;
    
    --bs-primary-rgb: 61, 139, 253;
    --bs-secondary-rgb: 108, 117, 125;
    --bs-success-rgb: 66, 186, 150;
    --bs-info-rgb: 57, 160, 237;
    --bs-warning-rgb: 255, 193, 7;
    --bs-danger-rgb: 227, 93, 106;
    --bs-light-rgb: 248, 249, 250;
    --bs-dark-rgb: 33, 37, 41;
    
    /* Input and form control styles */
    --bs-border-color: #495057;
    --bs-border-color-translucent: rgba(255, 255, 255, 0.15);
}

/* Apply custom variables */
.sidebar {
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--sidebar-border);
}

.sa-card-header, .card-header {
    background-color: var(--card-header-bg);
}

.nav-link:hover {
    background-color: var(--nav-link-hover);
}

/* Theme toggle button */
.theme-toggle {
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    width: 2.5rem;
    height: 2.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.3s, transform 0.3s;
    margin-right: 0.5rem;
    background-color: var(--nav-link-hover);
}

.theme-toggle:hover {
    background-color: var(--nav-link-hover);
    transform: scale(1.1);
}

.theme-toggle i {
    font-size: 1.2rem;
    color: var(--bs-body-color);
}

/* Theme toast */
.theme-toast {
    position: fixed;
    bottom: 1rem;
    right: 1rem;
    background-color: var(--toast-bg);
    border-radius: 0.5rem;
    padding: 0.75rem 1.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
    z-index: 1050;
}

/* Ensure modals are always on top */
.modal-backdrop {
    z-index: 1040 !important;
}

.modal {
    z-index: 1050 !important;
}

/* Ensure proper modal animations in all themes */
.modal.fade .modal-dialog {
    transition: transform 0.2s ease-out !important;
    transform: translate(0, -50px);
}

.modal.fade.show .modal-dialog {
    transform: translate(0, 0);
}

/* Additional dark mode styles for improved contrast */
[data-bs-theme="dark"] .card {
    border-color: var(--bs-border-color);
}

[data-bs-theme="dark"] .table {
    --bs-table-color: var(--bs-body-color);
    --bs-table-bg: var(--bs-body-bg);
    --bs-table-border-color: var(--bs-border-color);
}

[data-bs-theme="dark"] .modal-content {
    background-color: var(--bs-body-bg);
    border-color: var(--bs-border-color);
    color: var(--bs-body-color);
    z-index: 1050;
}

[data-bs-theme="dark"] .modal-header,
[data-bs-theme="dark"] .modal-footer {
    border-color: var(--bs-border-color);
}

[data-bs-theme="dark"] .modal-backdrop {
    background-color: #000;
}

[data-bs-theme="dark"] .modal-backdrop.show {
    opacity: 0.7;
}

[data-bs-theme="dark"] .form-control,
[data-bs-theme="dark"] .form-select {
    background-color: rgba(255, 255, 255, 0.05);
    border-color: var(--bs-border-color);
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .form-control:focus,
[data-bs-theme="dark"] .form-select:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--bs-primary);
}

/* Dropdown styles for dark mode */
[data-bs-theme="dark"] .dropdown-menu {
    background-color: var(--bs-body-bg);
    border-color: var(--bs-border-color);
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .dropdown-item {
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .dropdown-item:hover,
[data-bs-theme="dark"] .dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--bs-body-color);
}

[data-bs-theme="dark"] .dropdown-item.active,
[data-bs-theme="dark"] .dropdown-item:active {
    background-color: var(--bs-primary);
    color: #fff;
}

/* Form select styles for dark mode */
[data-bs-theme="dark"] .form-select {
    background-color: var(--bs-body-bg);
    border-color: var(--bs-border-color);
    color: var(--bs-body-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23adb5bd' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='m2 5 6 6 6-6'/%3e%3c/svg%3e");
}

[data-bs-theme="dark"] .form-select:focus {
    border-color: #86b7fe;
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

[data-bs-theme="dark"] .form-select option {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
}

/* Fix for native select dropdowns which show the OS UI */
[data-bs-theme="dark"] select {
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}

/* Improve readability of alerts in dark mode */
[data-bs-theme="dark"] .alert {
    border-color: rgba(255, 255, 255, 0.15);
}

/* Ensure dropdowns transition properly with theme changes */
.dropdown-menu,
.form-select,
select {
    transition: background-color var(--theme-transition-time) ease,
                color var(--theme-transition-time) ease,
                border-color var(--theme-transition-time) ease;
}

/* Fix for Bootstrap's dropdown menu transition */
.dropdown-menu.show {
    animation: fadeInDropdown 0.2s ease-in-out;
}

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