/* ============================================================
   SIDEBAR COMPONENT — Enterprise Premium Dark
   Gradient dark sidebar with Quick Access favorites,
   grouped sections, and collapse-to-icon mode.
   ============================================================ */

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    background: linear-gradient(180deg, #0F1629 0%, #162040 100%);
    display: flex;
    flex-direction: column;
    z-index: 200;
    overflow-y: auto;
    overflow-x: hidden;
    transition: width var(--transition-slow);
}

/* ----- Brand / Logo ----- */
.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 14px 16px;
    border-bottom: 1px solid rgba(99,107,128,0.12);
}

.sidebar-logo {
    width: 30px;
    height: 30px;
    background: linear-gradient(135deg, #6366f1, #818cf8);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.sidebar-logo-wrap {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 4px 8px;
    background: rgba(255,255,255,0.1);
    border-radius: 10px;
    backdrop-filter: blur(4px);
}

.sidebar-logo-img {
    max-width: 140px;
    max-height: 36px;
    object-fit: contain;
    flex-shrink: 0;
    filter: brightness(0) invert(1);
    opacity: 0.92;
    transition: opacity 0.2s ease;
}

.sidebar-logo-wrap:hover .sidebar-logo-img {
    opacity: 1;
}

/* Light theme — dark logo on light sidebar */
:root.theme-light .sidebar-logo-img {
    filter: none;
    opacity: 0.85;
}

:root.theme-light .sidebar-logo-wrap {
    background: rgba(0,0,0,0.04);
}

:root.theme-light .sidebar-logo-wrap:hover .sidebar-logo-img {
    opacity: 1;
}

.sidebar-title {
    font-size: 14px;
    font-weight: 600;
    color: #FFFFFF;
    white-space: nowrap;
    transition: opacity var(--transition), width var(--transition);
}

.sidebar-pro-badge {
    margin-left: auto;
    font-size: 9px;
    font-weight: 600;
    background: rgba(99,102,241,0.2);
    color: #818cf8;
    padding: 2px 6px;
    border-radius: 4px;
    transition: opacity var(--transition), width var(--transition);
}

/* ----- Scrollable Menu Area ----- */
.sidebar-body {
    flex: 1;
    overflow-y: auto;
    padding: 14px 12px;
}

/* ----- Section Group ----- */
.sidebar-section {
    margin-bottom: 12px;
}

.sidebar-section-header {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 8px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.3px;
    color: #7B85A6;
    cursor: pointer;
    border-radius: 6px;
    border: none;
    background: none;
    width: 100%;
    text-align: left;
    transition: color 0.15s;
}

.sidebar-section-header:hover {
    color: #9BA3C0;
}

.sidebar-section-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    flex-shrink: 0;
}

.sidebar-section-chevron {
    margin-left: auto;
    font-size: 10px;
    color: #7B85A6;
    transition: transform 0.2s;
    display: flex;
    align-items: center;
}

.sidebar-section-items {
    display: flex;
    flex-direction: column;
    gap: 1px;
    overflow: hidden;
    max-height: 600px;
    transition: max-height 0.25s ease;
}

.sidebar-section--collapsed .sidebar-section-items {
    max-height: 0;
}

/* ----- Quick Access Section ----- */
.sidebar-quick-access {
    margin-bottom: 16px;
}

.sidebar-quick-header {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 0 8px;
    margin-bottom: 7px;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.3px;
    color: #7B85A6;
}

.sidebar-quick-header svg {
    color: #6366f1;
}

.sidebar-quick-items {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

/* ----- Divider ----- */
.sidebar-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(99,107,128,0.25), transparent);
    margin: 0 4px 14px;
}

/* ----- Links ----- */
.sidebar-link {
    display: flex;
    align-items: center;
    gap: 9px;
    padding: 6px 10px;
    font-size: 12px;
    font-weight: 400;
    color: #A0ABCA;
    text-decoration: none;
    border-radius: 6px;
    transition: background 0.15s ease, color 0.15s ease;
    cursor: pointer;
    border: 1px solid transparent;
}

.sidebar-link:hover {
    background: rgba(255,255,255,0.04);
    color: #C5CDDF;
    text-decoration: none;
}

.sidebar-link--quick {
    padding: 7px 10px;
    font-size: 12.5px;
    border-radius: 7px;
}

.sidebar-link--active {
    background: linear-gradient(135deg, rgba(99,102,241,0.18), rgba(99,102,241,0.06));
    color: #D4D8F0;
    font-weight: 500;
    border: 1px solid rgba(99,102,241,0.15);
}

.sidebar-link--active:hover {
    background: linear-gradient(135deg, rgba(99,102,241,0.22), rgba(99,102,241,0.08));
    color: #D4D8F0;
}

.sidebar-link-icon {
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: inherit;
}

.sidebar-link-label {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity var(--transition), width var(--transition);
}

/* ----- Sub-items (Ledger, Email children) ----- */
.sidebar-subitems {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.sidebar-subitems--open {
    max-height: 200px;
}

.sidebar-link--child {
    padding-left: 28px;
    font-size: 11.5px;
}

.sidebar-link-chevron {
    margin-left: auto;
    display: inline-flex;
    align-items: center;
    opacity: 0.5;
    transition: transform 0.2s, opacity var(--transition), width var(--transition);
}

/* ----- Bottom Area (Settings + Collapse) ----- */
.sidebar-bottom {
    border-top: 1px solid rgba(99,107,128,0.12);
    padding: 10px 12px;
}

.sidebar-collapse-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 7px 10px;
    border: none;
    background: transparent;
    color: #A0ABCA;
    font-size: 12px;
    font-weight: 400;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
    width: 100%;
    border-radius: 6px;
    margin-top: 4px;
}

.sidebar-collapse-btn:hover {
    color: #C5CDDF;
    background: rgba(255,255,255,0.04);
}

.sidebar-collapse-btn svg {
    flex-shrink: 0;
    transition: transform var(--transition);
}

.sidebar-collapse-label {
    white-space: nowrap;
    transition: opacity var(--transition), width var(--transition);
}

/* ============================================================
   COLLAPSED STATE
   Icon-only mode — shows only Quick Access icons.
   ============================================================ */
.sidebar--collapsed {
    width: var(--sidebar-width-collapsed);
}

.sidebar--collapsed .sidebar-title,
.sidebar--collapsed .sidebar-pro-badge {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar--collapsed .sidebar-brand {
    justify-content: center;
    padding: 14px 8px;
}

.sidebar--collapsed .sidebar-quick-header,
.sidebar--collapsed .sidebar-divider,
.sidebar--collapsed .sidebar-section {
    display: none;
}

.sidebar--collapsed .sidebar-link-label,
.sidebar--collapsed .sidebar-link-chevron {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar--collapsed .sidebar-link {
    justify-content: center;
    padding: 8px;
    border-radius: 8px;
}

.sidebar--collapsed .sidebar-link--quick {
    margin: 0 4px;
    width: calc(100% - 8px);
}

.sidebar--collapsed .sidebar-collapse-label {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

.sidebar--collapsed .sidebar-collapse-btn {
    justify-content: center;
}

.sidebar--collapsed .sidebar-collapse-btn svg {
    transform: rotate(180deg);
}

.sidebar--collapsed .sidebar-bottom .sidebar-link {
    justify-content: center;
    padding: 8px;
}

/* Tooltip on collapsed Quick Access items */
.sidebar--collapsed .sidebar-link--quick {
    position: relative;
}

.sidebar--collapsed .sidebar-link--quick::after {
    content: attr(data-tooltip);
    position: absolute;
    left: calc(100% + 8px);
    top: 50%;
    transform: translateY(-50%);
    background: #1E2235;
    color: #D4D8F0;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s;
    z-index: 300;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.sidebar--collapsed .sidebar-link--quick:hover::after {
    opacity: 1;
}

/* ----- Responsive: Mobile ----- */
@media (max-width: 768px) {
    .sidebar {
        position: static;
        width: 100%;
        height: 100%;
        transition: none;
    }

    .sidebar-collapse-btn {
        display: none;
    }

    /* On mobile, sidebar opens as full drawer — override collapsed state
       so sections, divider, and labels are always visible */
    .sidebar--collapsed .sidebar-quick-header,
    .sidebar--collapsed .sidebar-divider,
    .sidebar--collapsed .sidebar-section {
        display: block;
    }

    .sidebar--collapsed .sidebar-link-label,
    .sidebar--collapsed .sidebar-link-chevron {
        opacity: 1;
        width: auto;
        overflow: visible;
    }

    .sidebar--collapsed .sidebar-title,
    .sidebar--collapsed .sidebar-pro-badge {
        opacity: 1;
        width: auto;
        overflow: visible;
    }

    .sidebar--collapsed .sidebar-link {
        justify-content: flex-start;
        padding: 6px 10px;
    }
}