/* ==========================================================================
   Admin Layout — Sidebar + Header + Main Content
   ==========================================================================
   This file controls the three-region admin layout:
   - .rv-sidebar        (left sidebar, fixed)
   - .rv-header         (top header bar, fixed, offset by sidebar)
   - .rv-main-content   (scrollable content area)
   ========================================================================== */

/* ---------- CSS Variables ---------- */
:root {
    --rv-sidebar-width: 240px;
    --rv-sidebar-collapsed-width: 64px;
    --rv-header-height: 48px;
    --rv-sidebar-transition: 0.2s ease;
    --rv-sidebar-bg: #ffffff;
    --rv-sidebar-border: #e5e7eb;
    --rv-sidebar-active-bg: #e0f2f1;
    --rv-sidebar-active-color: #00695c;
    --rv-sidebar-hover-bg: #f3f4f6;
    --rv-sidebar-text: #374151;
    --rv-sidebar-text-muted: #9ca3af;
    --rv-sidebar-section-label: #6b7280;
}

/* ==========================================================================
   Sidebar
   ========================================================================== */

.rv-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: var(--rv-sidebar-width);
    height: 100dvh;
    background-color: var(--rv-sidebar-bg);
    border-right: 1px solid var(--rv-sidebar-border);
    z-index: 1040;
    display: flex;
    flex-direction: column;
    transition: width var(--rv-sidebar-transition);
    overflow: hidden;
}

/* ---------- Logo Area ---------- */

.rv-sidebar__logo {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--rv-header-height);
    padding: 0 12px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--rv-sidebar-border);
}

.rv-sidebar__logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    overflow: hidden;
    white-space: nowrap;
    /* button reset */
    background: none;
    border: none;
    padding: 4px;
    border-radius: 4px;
    cursor: pointer;
    color: inherit;
    text-decoration: none;
    flex-shrink: 0;
}

.rv-sidebar__logo-link:hover {
    background-color: var(--rv-sidebar-hover-bg);
}

.rv-sidebar__logo-img {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.rv-sidebar__logo-text {
    font-size: 1rem;
    font-weight: 700;
    color: var(--rv-sidebar-active-color);
    transition: opacity var(--rv-sidebar-transition);
}

/* ---------- CTA Button ---------- */

.rv-sidebar__cta {
    padding: 12px;
    flex-shrink: 0;
}

.rv-sidebar__cta-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    background-color: var(--reservalue-bgcolor-primary, #2ebc87);
    color: #ffffff;
    border: none;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s ease;
    white-space: nowrap;
    overflow: hidden;
}

.rv-sidebar__cta-btn:hover {
    background-color: #24b57e;
    color: #ffffff;
    text-decoration: none;
}

.rv-sidebar__cta-btn i {
    font-size: 1rem;
    flex-shrink: 0;
}

.rv-sidebar__cta-btn span {
    transition: opacity var(--rv-sidebar-transition);
}

/* ---------- Menu Area ---------- */

.rv-sidebar__menu {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 4px 0;
}

/* Thin scrollbar */
.rv-sidebar__menu::-webkit-scrollbar {
    width: 4px;
}
.rv-sidebar__menu::-webkit-scrollbar-thumb {
    background-color: #d1d5db;
    border-radius: 4px;
}

/* ---------- Section Labels ---------- */

.rv-sidebar__section-label {
    padding: 16px 16px 4px 16px;
    font-size: 0.6875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--rv-sidebar-section-label);
    white-space: nowrap;
    overflow: hidden;
    transition: opacity var(--rv-sidebar-transition);
}

/* ---------- Menu Items ---------- */

.rv-sidebar__item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px;
    height: 40px;
    margin: 1px 8px;
    border-radius: 6px;
    color: var(--rv-sidebar-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
    border-left: 3px solid transparent;
}

.rv-sidebar__item:hover {
    background-color: var(--rv-sidebar-hover-bg);
    color: var(--rv-sidebar-text);
    text-decoration: none;
}

.rv-sidebar__item--active {
    background-color: var(--rv-sidebar-active-bg);
    color: var(--rv-sidebar-active-color);
    border-left-color: var(--rv-sidebar-active-color);
    font-weight: 600;
}

.rv-sidebar__item--active:hover {
    background-color: var(--rv-sidebar-active-bg);
    color: var(--rv-sidebar-active-color);
}

.rv-sidebar__item i {
    font-size: 1.125rem;
    width: 20px;
    text-align: center;
    flex-shrink: 0;
}

.rv-sidebar__item span {
    transition: opacity var(--rv-sidebar-transition);
}

/* Expandable parent item */
.rv-sidebar__item--expandable {
    cursor: pointer;
}

.rv-sidebar__item--expandable .rv-sidebar__chevron {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform 0.2s ease, opacity var(--rv-sidebar-transition);
    flex-shrink: 0;
}

.rv-sidebar__item--expandable.expanded .rv-sidebar__chevron {
    transform: rotate(90deg);
}

/* ---------- Sub-items ---------- */

.rv-sidebar__sub-menu {
    overflow: hidden;
    transition: max-height 0.2s ease;
    max-height: 0;
}

.rv-sidebar__sub-menu.expanded {
    max-height: 500px; /* generous max for animation */
}

.rv-sidebar__sub-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px 0 46px; /* indented: 12px + 20px icon + 14px gap */
    height: 36px;
    margin: 1px 8px;
    border-radius: 6px;
    color: var(--rv-sidebar-text);
    text-decoration: none;
    font-size: 0.8125rem;
    font-weight: 400;
    white-space: nowrap;
    overflow: hidden;
    cursor: pointer;
    transition: background-color 0.15s ease, color 0.15s ease;
    border-left: 3px solid transparent;
}

.rv-sidebar__sub-item:hover {
    background-color: var(--rv-sidebar-hover-bg);
    color: var(--rv-sidebar-text);
    text-decoration: none;
}

.rv-sidebar__sub-item--active {
    background-color: var(--rv-sidebar-active-bg);
    color: var(--rv-sidebar-active-color);
    border-left-color: var(--rv-sidebar-active-color);
    font-weight: 600;
}

/* ---------- Bottom Section ---------- */

.rv-sidebar__bottom {
    flex-shrink: 0;
    border-top: 1px solid var(--rv-sidebar-border);
    padding: 4px 0 8px 0;
}

/* ---------- Avatar Row (Bottom) ---------- */

.rv-sidebar__avatar-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    margin: 1px 8px;
    border-radius: 6px;
    cursor: pointer;
}

.rv-sidebar__avatar-row:hover {
    background-color: var(--rv-sidebar-hover-bg);
}

.rv-sidebar__avatar-icon.avatar {
    height: 2rem;
    width: 2rem;
    display: block;
    flex-shrink: 0;
}

.rv-sidebar__avatar-icon .avatar-no-img {
    font-size: 0.875rem;
}

.rv-sidebar__avatar-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--rv-sidebar-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

/* ---------- Collapsed State ---------- */

.rv-sidebar.collapsed {
    width: var(--rv-sidebar-collapsed-width);
}

.rv-sidebar.collapsed .rv-sidebar__logo-text,
.rv-sidebar.collapsed .rv-sidebar__chevron {
    display: none;
}

.rv-sidebar.collapsed .rv-sidebar__item span,
.rv-sidebar.collapsed .rv-sidebar__cta-btn span {
    display: none;
}

.rv-sidebar.collapsed .rv-sidebar__logo {
    justify-content: center;
    padding: 0;
}

.rv-sidebar.collapsed .rv-sidebar__logo-link {
    justify-content: center;
}

.rv-sidebar.collapsed .rv-sidebar__cta-btn {
    padding: 8px;
    justify-content: center;
}

.rv-sidebar.collapsed .rv-sidebar__item {
    justify-content: center;
    padding: 0;
    margin: 1px 8px;
    gap: 0;
    border-left-color: transparent;
}

.rv-sidebar.collapsed .rv-sidebar__item--active {
    background-color: var(--rv-sidebar-active-bg);
    color: var(--rv-sidebar-active-color);
}

.rv-sidebar.collapsed .rv-sidebar__sub-menu {
    max-height: 0 !important;
}

.rv-sidebar.collapsed .rv-sidebar__sub-item {
    display: none;
}

.rv-sidebar.collapsed .rv-sidebar__section-label {
    height: 0;
    padding: 0;
    margin: 0;
    overflow: hidden;
}

.rv-sidebar.collapsed .rv-sidebar__avatar-row {
    justify-content: center;
    padding: 8px 0;
    gap: 0;
}

.rv-sidebar.collapsed .rv-sidebar__avatar-name {
    display: none;
}


/* ==========================================================================
   Top Header Bar
   ========================================================================== */

.rv-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--rv-header-height);
    background-color: #ffffff;
    border-bottom: 1px solid var(--rv-sidebar-border);
    z-index: 1039;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    /* Offset content from sidebar using padding, not left — guarantees border-bottom is always full-width */
    padding: 0 16px 0 calc(var(--rv-sidebar-width) + 16px);
    gap: 4px;
    transition: padding-left var(--rv-sidebar-transition);
}

.rv-header__hamburger {
    display: none;
    background: none;
    border: none;
    color: var(--rv-sidebar-text);
    font-size: 1.25rem;
    padding: 4px 8px;
    cursor: pointer;
    border-radius: 4px;
    margin-right: auto;
}

.rv-header__hamburger:hover {
    background-color: var(--rv-sidebar-hover-bg);
}

/* Sidebar collapsed → shrink header padding-left */
.rv-sidebar.collapsed ~ .rv-header {
    padding-left: calc(var(--rv-sidebar-collapsed-width) + 16px);
}

/* Business Unit dropdown — match sidebar text style */
#dropdownBusinessUnits .btn {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--rv-sidebar-text);
}

/* ==========================================================================
   Main Content Area
   ========================================================================== */

.rv-main-content {
    padding-top: calc(var(--rv-header-height) + 24px);
    padding-left: 20px;
    padding-right: 20px;
    padding-bottom: 40px;
    transition: margin-left var(--rv-sidebar-transition);
    /* Default: full-width layout, just offset by sidebar */
    margin-left: var(--rv-sidebar-width);
}

/* Standard pages: center content (max 1200px) within the space right of sidebar */
.rv-main-content:not(.rv-main-content--full) {
    max-width: 1240px; /* 1200 + 2×20px padding */
    margin-right: auto;
    /* Center: sidebar/2 + 50vw - half-of-max-width. Falls back to sidebar width on narrow screens. */
    margin-left: max(var(--rv-sidebar-width), calc(var(--rv-sidebar-width) / 2 + 50vw - 620px));
}

/* Full-width variant (calendar, reports, list views) */
.rv-main-content--full {
    max-width: none;
}

/* Sidebar collapsed → content shifts */
.rv-sidebar.collapsed ~ .rv-header ~ .rv-main-content.rv-main-content--full,
.rv-sidebar.collapsed ~ .rv-main-content.rv-main-content--full {
    margin-left: var(--rv-sidebar-collapsed-width);
}

.rv-sidebar.collapsed ~ .rv-header ~ .rv-main-content:not(.rv-main-content--full),
.rv-sidebar.collapsed ~ .rv-main-content:not(.rv-main-content--full) {
    margin-left: max(var(--rv-sidebar-collapsed-width), calc(var(--rv-sidebar-collapsed-width) / 2 + 50vw - 620px));
}

/* ==========================================================================
   Responsive — Large (992-1199px): auto-collapse sidebar
   ========================================================================== */

/* At lg (992-1199px), sidebar is auto-collapsed by JS.
   Header/content offsets are inherited from the .rv-sidebar.collapsed sibling rules above.
   No sidebar-specific CSS needed here; JS adds the .collapsed class on init and breakpoint change. */

/* ==========================================================================
   Responsive — Mobile (< 992px): sidebar as offcanvas overlay
   ========================================================================== */

@media (max-width: 991.98px) {
    .rv-sidebar {
        transform: translateX(-100%);
        box-shadow: none;
        width: var(--rv-sidebar-width);
    }

    .rv-sidebar.mobile-open {
        transform: translateX(0);
        box-shadow: 4px 0 16px rgba(0, 0, 0, 0.15);
    }

    /* Sidebar backdrop */
    .rv-sidebar-backdrop {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background-color: rgba(0, 0, 0, 0.3);
        z-index: 1039;
    }

    .rv-sidebar-backdrop.active {
        display: block;
    }

    .rv-header {
        padding-left: 16px; /* no sidebar on mobile */
    }

    .rv-header__hamburger {
        display: flex;
        align-items: center;
    }

    .rv-main-content {
        margin-left: 0;
        padding-top: calc(var(--rv-header-height) + 16px);
        padding-left: 12px;
        padding-right: 12px;
    }

    /* Override collapsed adjustments for mobile */
    .rv-sidebar.collapsed ~ .rv-header {
        padding-left: 16px;
    }

    /* On mobile the sidebar is offcanvas — never reserve left space, regardless of
       specificity from the desktop collapsed/centered rules */
    .rv-main-content:not(.rv-main-content--full),
    .rv-sidebar.collapsed ~ .rv-header ~ .rv-main-content,
    .rv-sidebar.collapsed ~ .rv-main-content,
    .rv-sidebar.collapsed ~ .rv-header ~ .rv-main-content.rv-main-content--full,
    .rv-sidebar.collapsed ~ .rv-main-content.rv-main-content--full,
    .rv-sidebar.collapsed ~ .rv-header ~ .rv-main-content:not(.rv-main-content--full),
    .rv-sidebar.collapsed ~ .rv-main-content:not(.rv-main-content--full) {
        margin-left: 0;
    }
}

/* ==========================================================================
   Print
   ========================================================================== */

@media print {
    .rv-sidebar,
    .rv-header,
    .rv-sidebar-backdrop {
        display: none !important;
    }

    .rv-main-content {
        margin-left: 0 !important;
        padding-top: 0 !important;
    }
}

/* ==========================================================================
   Tooltip for collapsed sidebar items
   ========================================================================== */

.rv-sidebar__tooltip {
    position: absolute;
    left: calc(var(--rv-sidebar-collapsed-width) + 8px);
    background-color: #1f2937;
    color: #ffffff;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 0.8125rem;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 1050;
}

.rv-sidebar.collapsed .rv-sidebar__item:hover .rv-sidebar__tooltip {
    opacity: 1;
}

/* Hide tooltips when sidebar is peek-expanded on hover */
.rv-sidebar.collapsed:hover .rv-sidebar__item:hover .rv-sidebar__tooltip {
    opacity: 0;
}

/* ==========================================================================
   Flyout menu for collapsed sidebar expandable items
   ========================================================================== */

.rv-sidebar__flyout {
    display: none;
    position: fixed;
    min-width: 180px;
    background-color: var(--rv-sidebar-bg);
    border: 1px solid var(--rv-sidebar-border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    padding: 6px 0;
    z-index: 1050;
}

.rv-sidebar__flyout-label {
    padding: 8px 14px 6px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--rv-sidebar-text);
    border-bottom: 1px solid var(--rv-sidebar-border);
    margin-bottom: 4px;
}

.rv-sidebar__flyout-item {
    display: block;
    padding: 6px 14px;
    font-size: 0.8125rem;
    color: var(--rv-sidebar-text);
    text-decoration: none;
    white-space: nowrap;
}

.rv-sidebar__flyout-item:hover {
    background-color: var(--rv-sidebar-hover-bg);
    color: var(--rv-sidebar-text);
    text-decoration: none;
}

.rv-sidebar__flyout-item--active {
    color: var(--rv-sidebar-active-color);
    font-weight: 600;
}

/* Highlight parent item when flyout is visible */
.rv-sidebar__item--flyout-active {
    background-color: var(--rv-sidebar-hover-bg);
}

.rv-sidebar__flyout-divider {
    height: 1px;
    background-color: var(--rv-sidebar-border);
    margin: 4px 0;
}

.rv-sidebar__flyout-lang {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    font-size: 0.8125rem;
    color: var(--rv-sidebar-muted);
}

.rv-sidebar__lang-btn {
    background: none;
    border: 1px solid var(--rv-sidebar-border);
    border-radius: 4px;
    padding: 2px 10px;
    font-size: 0.75rem;
    color: var(--rv-sidebar-text);
    cursor: pointer;
    transition: background-color 0.15s, border-color 0.15s;
}

.rv-sidebar__lang-btn:hover {
    background-color: var(--rv-sidebar-hover-bg);
}

.rv-sidebar__lang-btn.active {
    background-color: var(--rv-sidebar-active-bg);
    border-color: var(--rv-sidebar-active-color);
    color: var(--rv-sidebar-active-color);
    font-weight: 600;
}