/*
 * P4Books Navigation Menu Styles
 * Fluent 2 styling for P4NavMenu component
 * Updated: 2026-01-28
 *
 * Structure: Pure HTML nav using p4-nav-* classes
 * (Radzen PanelMenu selectors removed — now in P4NavMenu.razor.css)
 */

/* ============================================
   CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================ */

:root {
    /* Navigation Colors - Light Mode (aligned with sandbox) */
    --nav-icon-color: #64748B;
    --nav-icon-hover-color: #1E293B;
    --nav-text-color: #1E293B;
    --nav-text-hover-color: #1E293B;
    --nav-text-muted: #64748B;
    --nav-active-color: #1976D2;
    --nav-active-bg: #1976D2;
    --nav-active-text: #FFFFFF;
    --nav-hover-bg: rgba(25, 118, 210, 0.08);
    --nav-submenu-hover-bg: rgba(25, 118, 210, 0.06);
    --nav-border-color: #E2E8F0;
    --nav-border-light: #F1F5F9;
}

[data-theme="fluent2-dark"],
.theme-dark,
body.e-dark-mode {
    /* Navigation Colors - Dark Mode (aligned with sandbox) */
    --nav-icon-color: #94A3B8;
    --nav-icon-hover-color: #E2E8F0;
    --nav-text-color: #E2E8F0;
    --nav-text-hover-color: #FFFFFF;
    --nav-text-muted: #94A3B8;
    --nav-active-color: #60A5FA;
    --nav-active-bg: #60A5FA;
    --nav-active-text: #1E3A5F;
    --nav-hover-bg: rgba(96, 165, 250, 0.08);
    --nav-submenu-hover-bg: rgba(96, 165, 250, 0.1);
    --nav-border-color: #334155;
    --nav-border-light: #1E293B;
}

/* ============================================
   NAV MENU CONTAINER (P4NavMenu component)
   ============================================ */

.p4-nav-menu {
    display: flex;
    flex-direction: column;
    height: 100%;
    background: var(--surface-sidebar, #ffffff);
}

/* ============================================
   SEARCH SECTION
   ============================================ */

.nav-search {
    padding: 12px;
    border-bottom: 1px solid var(--border-light, #E2E8F0);
}

.nav-search-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.nav-search-input {
    height: 40px;
    width: 100%;
    padding-left: 40px;
    padding-right: 40px;
    font-size: 14px;
    border-radius: var(--p4-shape-medium, 6px);
    border: 1px solid var(--border-color, #E2E8F0);
    background: var(--bg-primary, #ffffff);
    color: var(--text-primary, #1A202C);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav-search-input::placeholder {
    color: var(--text-tertiary, #A0AEC0);
}

.nav-search-input:focus {
    outline: none;
    border-color: var(--nav-active-color);
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.15);
}

.theme-dark .nav-search-input,
body.e-dark-mode .nav-search-input {
    background: var(--bg-secondary, #2D3748);
    border-color: var(--border-color, #4A5568);
    color: var(--text-primary, #E2E8F0);
}

.theme-dark .nav-search-input:focus,
body.e-dark-mode .nav-search-input:focus {
    border-color: var(--nav-active-color);
    box-shadow: 0 0 0 3px rgba(99, 179, 237, 0.2);
}

.search-icon {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
    color: var(--text-tertiary, #A0AEC0);
    pointer-events: none;
}

.search-clear {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.15s ease;
}

.search-clear:hover {
    background: var(--nav-hover-bg);
}

.shortcut-hint {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 12px;
    color: var(--text-tertiary, #A0AEC0);
    pointer-events: none;
    padding: 2px 6px;
    border: 1px solid var(--border-color, #E2E8F0);
    border-radius: 4px;
    background: var(--bg-secondary, #F7FAFC);
}

.theme-dark .shortcut-hint,
body.e-dark-mode .shortcut-hint {
    background: var(--bg-tertiary, #1A202C);
    border-color: var(--border-color, #4A5568);
}

.nav-search-results {
    font-size: 14px;
    color: var(--text-tertiary, #A0AEC0);
    padding-top: 8px;
    animation: slideDown 0.2s ease-out;
}

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

/* ============================================
   NAVIGATION CONTENT
   ============================================ */

.nav-content {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
}

.nav-no-results {
    text-align: center;
    padding: 32px 16px;
    color: var(--text-tertiary, #A0AEC0);
}

.nav-no-results-icon {
    font-size: 48px;
    opacity: 0.3;
    margin-bottom: 8px;
    display: block;
}

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */

@media (max-width: 768px) {
    .nav-search {
        padding: 8px;
    }

    .nav-search-input {
        height: 36px;
        font-size: 12px;
    }

    .shortcut-hint {
        display: none;
    }
}

/* ============================================
   ACCESSIBILITY - REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    .nav-search-results {
        animation: none;
        transition: none;
    }
}