/**
 * HygieneTech Modern Sidebar v1.0
 * Clean, compact, mobile-first design
 * All classes prefixed: ht-nav-*
 */

/* ===========================================
   CSS VARIABLES
   =========================================== */
:root {
    --ht-nav-width: 260px;
    --ht-nav-width-collapsed: 72px;
    --ht-nav-bg: #0f172a;
    --ht-nav-bg-hover: rgba(255, 255, 255, 0.05);
    --ht-nav-bg-active: rgba(99, 102, 241, 0.15);
    --ht-nav-border: rgba(255, 255, 255, 0.08);
    --ht-nav-text: #94a3b8;
    --ht-nav-text-hover: #e2e8f0;
    --ht-nav-text-active: #ffffff;
    --ht-nav-accent: #6366f1;
    --ht-nav-section: #475569;
    --ht-nav-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --ht-nav-radius: 8px;
    
    /* Update header position */
    --ht-sidebar-width: var(--ht-nav-width);
    --ht-sidebar-collapsed-width: var(--ht-nav-width-collapsed);
}

/* ===========================================
   SIDEBAR BASE
   =========================================== */
.ht-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--ht-nav-width);
    height: 100vh;
    background: var(--ht-nav-bg);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: width var(--ht-nav-transition), transform var(--ht-nav-transition);
    overflow: hidden;
}

[dir="rtl"] .ht-nav {
    left: auto;
    right: 0;
}

/* ===========================================
   LOGO HEADER
   =========================================== */
.ht-nav-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px;
    height: 68px;
    border-bottom: 1px solid var(--ht-nav-border);
    flex-shrink: 0;
}

.ht-nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    overflow: hidden;
}

.ht-nav-logo-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
    flex-shrink: 0;
}

.ht-nav-logo-full {
    height: 32px;
    width: auto;
    max-width: 140px;
    object-fit: contain;
    margin-left: 12px;
    opacity: 1;
    transition: opacity var(--ht-nav-transition), margin var(--ht-nav-transition);
}

[dir="rtl"] .ht-nav-logo-full {
    margin-left: 0;
    margin-right: 12px;
}

/* Collapse Button */
.ht-nav-collapse {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    background: var(--ht-nav-bg-hover);
    border: 1px solid var(--ht-nav-border);
    border-radius: 6px;
    color: var(--ht-nav-text);
    cursor: pointer;
    transition: all var(--ht-nav-transition);
    flex-shrink: 0;
}

.ht-nav-collapse:hover {
    background: var(--ht-nav-bg-active);
    color: var(--ht-nav-text-hover);
}

.ht-nav-collapse svg {
    width: 16px;
    height: 16px;
    transition: transform var(--ht-nav-transition);
}

/* ===========================================
   SEARCH BOX
   =========================================== */
.ht-nav-search {
    padding: 12px 16px;
    flex-shrink: 0;
}

.ht-nav-search-box {
    display: flex;
    align-items: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--ht-nav-border);
    border-radius: var(--ht-nav-radius);
    padding: 8px 12px;
    gap: 8px;
    transition: all var(--ht-nav-transition);
}

.ht-nav-search-box:focus-within {
    border-color: var(--ht-nav-accent);
    background: rgba(99, 102, 241, 0.08);
}

.ht-nav-search-icon {
    width: 16px;
    height: 16px;
    color: var(--ht-nav-text);
    flex-shrink: 0;
}

.ht-nav-search-box input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--ht-nav-text-hover);
    font-size: 13px;
    min-width: 0;
}

.ht-nav-search-box input::placeholder {
    color: var(--ht-nav-text);
}

.ht-nav-search-kbd {
    background: rgba(255, 255, 255, 0.1);
    color: var(--ht-nav-text);
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    flex-shrink: 0;
    font-family: inherit;
    border: none;
}

/* ===========================================
   NAVIGATION MENU
   =========================================== */
.ht-nav-menu {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 8px 0;
}

.ht-nav-menu::-webkit-scrollbar {
    width: 4px;
}

.ht-nav-menu::-webkit-scrollbar-track {
    background: transparent;
}

.ht-nav-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

.ht-nav-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

.ht-nav-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

/* ===========================================
   SECTION HEADERS
   =========================================== */
.ht-nav-section {
    padding: 20px 16px 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--ht-nav-section);
    white-space: nowrap;
    overflow: hidden;
}

/* ===========================================
   MENU ITEMS
   =========================================== */
.ht-nav-item {
    padding: 2px 8px;
}

.ht-nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    color: var(--ht-nav-text);
    text-decoration: none;
    border-radius: var(--ht-nav-radius);
    transition: all 0.15s ease;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
}

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

/* Active State */
.ht-nav-link.ht-nav-active,
.ht-nav-item.ht-nav-active > .ht-nav-link {
    background: var(--ht-nav-bg-active);
    color: var(--ht-nav-text-active);
}

.ht-nav-link.ht-nav-active .ht-nav-icon,
.ht-nav-item.ht-nav-active > .ht-nav-link .ht-nav-icon {
    color: var(--ht-nav-accent);
}

/* Icons */
.ht-nav-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    stroke-width: 1.75;
}

/* Text */
.ht-nav-text {
    flex: 1;
    font-size: 14px;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Arrow */
.ht-nav-arrow {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
    opacity: 0.6;
    transition: transform var(--ht-nav-transition);
}

/* Open State Arrow Rotation */
.ht-nav-has-sub.ht-nav-open > .ht-nav-link .ht-nav-arrow,
.ht-nav-has-sub.ht-nav-active > .ht-nav-link .ht-nav-arrow {
    transform: rotate(180deg);
}

/* ===========================================
   SUBMENU
   =========================================== */
.ht-nav-sub {
    list-style: none;
    margin: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--ht-nav-transition);
}

.ht-nav-has-sub.ht-nav-open > .ht-nav-sub {
    max-height: 500px;
}

.ht-nav-sub li {
    padding: 0;
}

.ht-nav-sub a {
    display: block;
    padding: 8px 12px 8px 44px;
    color: var(--ht-nav-text);
    text-decoration: none;
    font-size: 13px;
    font-weight: 400;
    border-radius: 6px;
    margin: 2px 8px;
    transition: all 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

[dir="rtl"] .ht-nav-sub a {
    padding: 8px 44px 8px 12px;
}

.ht-nav-sub a:hover {
    background: var(--ht-nav-bg-hover);
    color: var(--ht-nav-text-hover);
}

.ht-nav-sub a.ht-nav-active {
    background: var(--ht-nav-bg-active);
    color: var(--ht-nav-accent);
    font-weight: 500;
}

/* Divider */
.ht-nav-divider {
    height: 1px;
    background: var(--ht-nav-border);
    margin: 8px 16px 8px 44px;
}

[dir="rtl"] .ht-nav-divider {
    margin: 8px 44px 8px 16px;
}

/* Logout Link */
.ht-nav-logout {
    color: #f87171 !important;
}

.ht-nav-logout:hover {
    background: rgba(248, 113, 113, 0.1) !important;
    color: #ef4444 !important;
}

/* ===========================================
   FOOTER
   =========================================== */
.ht-nav-footer {
    padding: 12px 16px;
    border-top: 1px solid var(--ht-nav-border);
    flex-shrink: 0;
}

.ht-nav-version {
    font-size: 11px;
    color: var(--ht-nav-section);
}

/* ===========================================
   COLLAPSED STATE
   =========================================== */
.ht-nav[data-collapsed="true"] {
    width: var(--ht-nav-width-collapsed);
}

.ht-nav[data-collapsed="true"] .ht-nav-logo-full {
    opacity: 0;
    width: 0;
    margin: 0;
}

.ht-nav[data-collapsed="true"] .ht-nav-collapse svg {
    transform: rotate(180deg);
}

.ht-nav[data-collapsed="true"] .ht-nav-search {
    padding: 12px 8px;
}

.ht-nav[data-collapsed="true"] .ht-nav-search-box {
    justify-content: center;
    padding: 8px;
}

.ht-nav[data-collapsed="true"] .ht-nav-search-box input,
.ht-nav[data-collapsed="true"] .ht-nav-search-kbd {
    display: none;
}

.ht-nav[data-collapsed="true"] .ht-nav-section {
    text-align: center;
    padding: 16px 8px 8px;
    font-size: 9px;
}

.ht-nav[data-collapsed="true"] .ht-nav-item {
    padding: 2px 8px;
}

.ht-nav[data-collapsed="true"] .ht-nav-link {
    justify-content: center;
    padding: 12px;
    gap: 0;
}

.ht-nav[data-collapsed="true"] .ht-nav-text,
.ht-nav[data-collapsed="true"] .ht-nav-arrow {
    display: none;
}

.ht-nav[data-collapsed="true"] .ht-nav-sub {
    display: none;
}

.ht-nav[data-collapsed="true"] .ht-nav-footer {
    text-align: center;
    padding: 12px 8px;
}

/* Tooltip on hover when collapsed */
.ht-nav[data-collapsed="true"] .ht-nav-link {
    position: relative;
}

.ht-nav[data-collapsed="true"] .ht-nav-link::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 100%;
    top: 50%;
    transform: translateY(-50%);
    background: var(--ht-nav-bg);
    color: var(--ht-nav-text-hover);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
    margin-left: 12px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1001;
    pointer-events: none;
}

[dir="rtl"] .ht-nav[data-collapsed="true"] .ht-nav-link::after {
    left: auto;
    right: 100%;
    margin-left: 0;
    margin-right: 12px;
}

.ht-nav[data-collapsed="true"] .ht-nav-link:hover::after {
    opacity: 1;
    visibility: visible;
}

/* ===========================================
   MOBILE OVERLAY
   =========================================== */
.ht-nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(2px);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: all var(--ht-nav-transition);
}

.ht-nav-overlay.ht-nav-visible {
    opacity: 1;
    visibility: visible;
}

/* ===========================================
   RESPONSIVE - Tablet (max 1199px)
   =========================================== */
@media (max-width: 1199px) {
    .ht-nav {
        transform: translateX(-100%);
    }
    
    [dir="rtl"] .ht-nav {
        transform: translateX(100%);
    }
    
    .ht-nav.ht-nav-mobile-open {
        transform: translateX(0);
    }
    
    .ht-nav-collapse {
        display: none;
    }
}

/* ===========================================
   RESPONSIVE - Mobile (max 767px)
   =========================================== */
@media (max-width: 767px) {
    .ht-nav {
        width: 280px;
    }
}

/* ===========================================
   PAGE LAYOUT ADJUSTMENTS
   =========================================== */
.page-wrapper .page-body-wrapper {
    margin-left: var(--ht-nav-width);
    transition: margin var(--ht-nav-transition);
}

[dir="rtl"] .page-wrapper .page-body-wrapper {
    margin-left: 0;
    margin-right: var(--ht-nav-width);
}

/* When sidebar is collapsed */
body.ht-nav-collapsed .page-wrapper .page-body-wrapper {
    margin-left: var(--ht-nav-width-collapsed);
}

[dir="rtl"] body.ht-nav-collapsed .page-wrapper .page-body-wrapper {
    margin-left: 0;
    margin-right: var(--ht-nav-width-collapsed);
}

/* Header positioning */
.ht-header {
    left: var(--ht-nav-width);
    transition: left var(--ht-nav-transition), right var(--ht-nav-transition);
}

[dir="rtl"] .ht-header {
    left: 0;
    right: var(--ht-nav-width);
}

body.ht-nav-collapsed .ht-header {
    left: var(--ht-nav-width-collapsed);
}

[dir="rtl"] body.ht-nav-collapsed .ht-header {
    left: 0;
    right: var(--ht-nav-width-collapsed);
}

/* Mobile - no margin */
@media (max-width: 1199px) {
    .page-wrapper .page-body-wrapper {
        margin-left: 0 !important;
        margin-right: 0 !important;
    }
    
    .ht-header {
        left: 0 !important;
        right: 0 !important;
    }
}

/* ===========================================
   HIDE OLD SIDEBAR ELEMENTS
   =========================================== */
.sidebar-wrapper,
.page-wrapper .sidebar-wrapper {
    display: none !important;
}

/* ===========================================
   SEARCH HIGHLIGHT
   =========================================== */
.ht-nav-item.ht-nav-search-hidden {
    display: none;
}

.ht-nav-section.ht-nav-search-hidden {
    display: none;
}

.ht-nav-item.ht-nav-search-match .ht-nav-sub {
    max-height: 500px;
}

/* ===========================================
   SCROLLBAR STYLES (Firefox)
   =========================================== */
.ht-nav-menu {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.1) transparent;
}

/* ===========================================
   FOCUS STATES
   =========================================== */
.ht-nav-link:focus-visible,
.ht-nav-sub a:focus-visible,
.ht-nav-collapse:focus-visible,
.ht-nav-search-box:focus-within {
    outline: 2px solid var(--ht-nav-accent);
    outline-offset: 2px;
}

/* ===========================================
   DARK MODE (already dark, but for consistency)
   =========================================== */
.dark-only .ht-nav {
    background: var(--ht-nav-bg);
}

/* ===========================================
   PRINT STYLES
   =========================================== */
@media print {
    .ht-nav,
    .ht-nav-overlay {
        display: none !important;
    }
    
    .page-wrapper .page-body-wrapper {
        margin: 0 !important;
    }
}