:root {
    --header-bg-top: #1c2d3d;
    --header-bg-bottom: #2b3e50;
    --header-text: #ffffff;
    --header-text-muted: #cbd5e1;
    --header-hover-bg: rgba(255, 255, 255, 0.1);
}

/* Top Header Bar */
.fiori-header {
    background-color: var(--header-bg-top) !important;
    color: var(--header-text) !important;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Texts & Icons in Top Header */
.fiori-header .fiori-dropdown-selector,
.fiori-header .fiori-icon-btn {
    color: var(--header-text-muted) !important;
    transition: color 0.3s ease, background-color 0.2s ease;
}

.fiori-header .fiori-dropdown-selector:hover,
.fiori-header .fiori-icon-btn:hover {
    background-color: var(--header-hover-bg) !important;
    color: var(--header-text) !important;
}

/* Bottom Navigation Bar */
.fiori-navbar {
    background-color: var(--header-bg-bottom) !important;
    border-bottom-color: var(--header-hover-bg) !important;
    transition: background-color 0.3s ease;
}

/* Texts Bottom */
.fiori-navbar .fiori-nav-item > a {
    color: var(--header-text-muted) !important;
    transition: color 0.3s ease, border-color 0.2s ease;
}

.fiori-navbar .fiori-nav-item > a:hover {
    color: var(--header-text) !important;
}

.fiori-navbar .fiori-nav-item.active > a {
    color: var(--header-text) !important;
    border-bottom-color: var(--nav-tab-active-border, var(--theme-600, #243BD4)) !important;
}

/* Active Nav Dropdown Toggle */
.fiori-nav-item.has-dropdown.active .fiori-nav-dropdown-toggle {
    border-bottom-color: var(--nav-tab-active-border, var(--theme-600, #243BD4)) !important;
}

/* Submenu Dropdowns & Nested Flyout Menus Theme Styling */
.fiori-nav-dropdown-menu,
.fiori-nav-nested-menu,
.fiori-dropdown:not(.user-profile-dropdown) .fiori-dropdown-menu,
.fiori-dropdown-menu:not(.user-dropdown-menu) {
    background-color: var(--header-bg-bottom) !important;
    border-color: var(--header-hover-bg, rgba(255, 255, 255, 0.15)) !important;
}

.fiori-nav-dropdown-item:not(.has-nested-dropdown) > a,
.fiori-nav-list .fiori-nav-dropdown-item:not(.has-nested-dropdown) > a,
.fiori-nav-nested-item > a,
.fiori-nav-nested-toggle,
.fiori-dropdown:not(.user-profile-dropdown) .fiori-dropdown-menu li a {
    color: var(--header-text-muted) !important;
}

.fiori-nav-dropdown-item:not(.has-nested-dropdown) > a:hover,
.fiori-nav-list .fiori-nav-dropdown-item:not(.has-nested-dropdown) > a:hover,
.fiori-nav-nested-item > a:hover,
.fiori-dropdown:not(.user-profile-dropdown) .fiori-dropdown-menu li a:hover,
.fiori-nav-dropdown-item.has-nested-dropdown:hover > .fiori-nav-nested-toggle,
.fiori-nav-dropdown-item.has-nested-dropdown.show-nested > .fiori-nav-nested-toggle {
    background-color: var(--header-hover-bg) !important;
    color: var(--header-text) !important;
}

.fiori-nav-dropdown-item:not(.has-nested-dropdown).active > a,
.fiori-nav-list .fiori-nav-dropdown-item:not(.has-nested-dropdown).active > a,
.fiori-nav-nested-item.active > a,
.fiori-nav-nested-item.active a {
    background-color: var(--nav-item-active-bg, var(--theme-700, #243BD4)) !important;
    color: #ffffff !important;
}

.fiori-nav-dropdown-item.has-nested-dropdown.active > .fiori-nav-nested-toggle {
    color: #ffffff !important;
    font-weight: 600 !important;
}

/* Theme Modal Styles */
.theme-modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
}

.theme-modal-overlay.show {
    display: flex;
}

.theme-modal {
    background-color: #ffffff;
    width: 90%;
    max-width: 800px;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}

.theme-modal-header {
    padding: 24px;
    border-bottom: 1px solid #e2e8f0;
}

.theme-modal-header h3 {
    margin: 0 0 8px 0;
    font-size: 20px;
    color: #1e293b;
    font-weight: 700;
}

.theme-modal-header p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
}

.modal-close-btn {
    background: none;
    border: none;
    color: #94a3b8;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close-btn:hover {
    background-color: #f1f5f9;
    color: #ef4444;
}

.theme-modal-body {
    padding: 24px;
    overflow-y: auto;
}

.theme-group {
    margin-bottom: 32px;
}

.theme-group:last-child {
    margin-bottom: 0;
}

.theme-group h4 {
    margin: 0 0 16px 0;
    font-size: 15px;
    font-weight: 600;
    color: #1e293b;
}

.theme-options {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

/* Theme Card */
.theme-card {
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: all 0.2s ease;
    background-color: #ffffff;
    display: flex;
    flex-direction: column;
}

.theme-card:hover {
    border-color: #94a3b8;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.theme-card.active {
    border-color: var(--theme-active-color, #3E50EB);
    box-shadow: 0 0 0 1.5px var(--theme-active-color, #3E50EB);
}

.theme-preview {
    height: 100px;
    position: relative;
    border-bottom: 1px solid #e2e8f0;
}

.theme-check {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 32px;
    height: 32px;
    background-color: var(--theme-active-color, #2c3e50);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    opacity: 0;
    transition: opacity 0.2s;
}

.theme-card.active .theme-check {
    opacity: 1;
}

.theme-label {
    padding: 12px 14px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    font-weight: 600;
    color: #334155;
}

.theme-switch {
    width: 36px;
    height: 20px;
    background-color: #cbd5e1;
    border-radius: 10px;
    position: relative;
    transition: background-color 0.2s;
}

.theme-switch::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 16px;
    height: 16px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.2s;
}

.theme-card.active .theme-switch {
    background-color: var(--switch-active, var(--theme-active-color, #3E50EB));
}

.theme-card.active .theme-switch::after {
    transform: translateX(16px);
}

.theme-modal-footer {
    padding: 16px 24px;
    border-top: 1px solid #e2e8f0;
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: #f8fafc;
    border-radius: 0 0 8px 8px;
}

.btn-save {
    padding: 8px 24px;
    background-color: #2c3e50;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-save:hover {
    background-color: #1a252f;
}

/* ==========================================================================
   Command Bar & Autocomplete Dropdown Theme Integration
   ========================================================================== */
.fiori-command-bar {
    background: var(--cmd-bar-bg, rgba(255, 255, 255, 0.14)) !important;
    border-color: var(--cmd-bar-border, rgba(255, 255, 255, 0.25)) !important;
    color: var(--header-text, #ffffff) !important;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.2s ease, color 0.3s ease !important;
}

.fiori-command-bar:hover {
    background: var(--cmd-bar-bg-hover, rgba(255, 255, 255, 0.2)) !important;
    border-color: var(--cmd-bar-border-focus, rgba(255, 255, 255, 0.45)) !important;
}

.fiori-command-bar:focus-within,
.fiori-command-bar.active {
    background: var(--cmd-bar-bg-focus, rgba(255, 255, 255, 0.22)) !important;
    border-color: var(--cmd-bar-border-focus, rgba(255, 255, 255, 0.6)) !important;
    box-shadow: 0 0 0 3px var(--cmd-bar-focus-ring, rgba(255, 255, 255, 0.2)), 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

.fiori-cmd-icon {
    color: var(--header-text-muted, inherit) !important;
    transition: color 0.3s ease, opacity 0.2s ease !important;
}

.fiori-command-bar:focus-within .fiori-cmd-icon {
    color: var(--header-text, inherit) !important;
}

.fiori-command-bar input#sapCommandBarInput {
    color: var(--header-text, #ffffff) !important;
}

.fiori-command-bar input#sapCommandBarInput::placeholder {
    color: var(--cmd-bar-placeholder, rgba(255, 255, 255, 0.65)) !important;
}

.fiori-cmd-clear {
    color: var(--header-text-muted, rgba(255, 255, 255, 0.8)) !important;
}

.fiori-cmd-clear:hover {
    color: var(--header-text, #ffffff) !important;
    background-color: var(--header-hover-bg, rgba(255, 255, 255, 0.2)) !important;
}

.fiori-cmd-kbd {
    background: var(--cmd-bar-kbd-bg, rgba(255, 255, 255, 0.18)) !important;
    border-color: var(--cmd-bar-kbd-border, rgba(255, 255, 255, 0.25)) !important;
    color: var(--cmd-bar-kbd-text, rgba(255, 255, 255, 0.9)) !important;
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease, opacity 0.2s ease !important;
}

/* Autocomplete Dropdown Theme Connection */
.fiori-cmd-dropdown {
    background-color: var(--dropdown-bg, #ffffff) !important;
    border-color: var(--dropdown-border, #e2e8f0) !important;
    color: var(--dropdown-text, #1e293b) !important;
}

.fiori-cmd-item.active {
    background-color: var(--dropdown-hover-bg, #f1f5f9) !important;
    border-left: 3px solid var(--accent-color, #0b66c2) !important;
}

.fiori-cmd-badge {
    background-color: color-mix(in srgb, var(--accent-color, #0b66c2) 12%, #ffffff) !important;
    color: var(--accent-color, #0b66c2) !important;
    border-color: color-mix(in srgb, var(--accent-color, #0b66c2) 28%, #ffffff) !important;
}

.fiori-cmd-dropdown-header .fiori-cmd-count {
    background-color: color-mix(in srgb, var(--accent-color, #0b66c2) 12%, #e2e8f0) !important;
    color: var(--accent-color, #0b66c2) !important;
}