/* Sidebar Redesign Styles */

:root {
    --sidebar-width: 260px;
    --sidebar-padding: 12px;
    --nav-item-radius: 8px;
    --nav-item-padding: 10px 14px;
    --font-size-nav: 14px;
}

body[data-theme="dark"] {
    --text-color-primary: #f5f5f5;
    --text-color-secondary: #aaa;
    --bg-hover: rgba(255, 255, 255, 0.08);
    --bg-active: rgba(255, 255, 255, 0.12);
}

.sidebar {
    width: var(--sidebar-width) !important;
    padding: var(--sidebar-padding) !important;
}

/* Header & Search */
.sidebar-header {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-header-top {
    display: flex;
    align-items: center;
    padding: 0 4px 8px;
    justify-content: space-between;
}

.sidebar-logo {
    display: flex;
    align-items: center;
}

.sidebar-logo img {
    height: 24px;
}

.collapse-btn {
    background: transparent;
    border: none;
    color: var(--text-color-secondary);
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.collapse-btn:hover {
    background: var(--bg-hover);
}

/* Redesigned Search Bar Button Style */
.sidebar-search-trigger {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 10px 16px;
    background-color: var(--input-bg);
    border-radius: 24px;
    border: 1px solid var(--border-color);
    color: var(--text-color-secondary);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    user-select: none;
    margin-bottom: 8px;
}

.sidebar-search-trigger:hover {
    background-color: var(--bg-hover);
}

.sidebar-search-trigger i {
    font-size: 14px;
}

.sidebar-search-trigger .shortcut {
    margin-left: auto;
    font-size: 12px;
    opacity: 0.6;
}

/* Navigation Items */
.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    flex-direction: row;
    /* Default to row for icon + text */
    align-items: center;
    gap: 12px;
    padding: var(--nav-item-padding) !important;
    border-radius: var(--nav-item-radius) !important;
    color: var(--text-color-primary) !important;
    font-size: var(--font-size-nav) !important;
    font-weight: 500 !important;
    text-transform: none !important;
    letter-spacing: normal !important;
    text-decoration: none !important;
    cursor: pointer;
    transition: background 0.2s;
}

/* Items with submenus must stack header and submenu vertically */
.nav-item.has-submenu {
    flex-direction: column;
    align-items: stretch;
    padding: 0 !important;
    gap: 0;
}

.nav-item:hover {
    background-color: var(--bg-hover);
}

.nav-item.active {
    background-color: var(--bg-active);
}

/* Internal header part of nav items (for toggles) */
.nav-item-main,
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    width: 100%;
    padding: var(--nav-item-padding) !important;
}

/* Left part of the header (icon + text) */
.nav-item-main>div,
.section-header>div {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-item i,
.nav-item svg {
    width: 20px !important;
    height: 20px !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    font-size: 18px !important;
    color: var(--text-color-primary) !important;
    flex-shrink: 0;
}

/* Generalized Toggle Icon (Chevrons) */
.toggle-icon {
    font-size: 12px !important;
    /* Standardize size slightly smaller than history icon */
    opacity: 0.6;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-item.expanded .toggle-icon,
#mainHistorySection .toggle-icon.rotated {
    transform: rotate(180deg);
}

/* Sidebar Section Headers */
.sidebar-section {
    margin-top: 20px;
}

.section-header {
    color: var(--text-color-primary);
    font-size: var(--font-size-nav);
    font-weight: 500 !important;
    /* Solidly match nav-item weight */
    cursor: pointer;
}

/* Nested Containers */
.sidebar-nested-container {
    margin-left: 23px;
    padding-left: 16px;
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 4px;
    margin-bottom: 12px;
    transition: all 0.3s ease;
}

/* Submenu Toggling */
.nav-submenu {
    display: none;
}

.nav-item.expanded .nav-submenu {
    display: block;
}

.nested-item,
.history-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    border-radius: 6px;
    color: var(--text-color-primary);
    font-size: 14px;
    text-decoration: none;
    transition: background 0.2s;
    font-weight: 400;
    /* Sub-items should be normal weight */
}

.nested-item:hover,
.history-item:hover {
    background-color: var(--bg-hover);
}

.nested-item.faded,
.history-item.faded {
    color: var(--text-color-secondary);
}

/* History and Nested Section Subheaders */
.history-subheader,
.history-date {
    padding: 8px 12px 4px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    opacity: 0.7;
}

/* User Menu Styling */
.user-menu-container {
    padding: 8px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    position: relative;
    border-radius: 8px;
    transition: background 0.2s;
}

.user-menu-container:hover {
    background: var(--bg-hover);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--accent);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-color-primary);
}

.user-menu {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    right: 0;
    background: var(--input-bg);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    display: none;
    z-index: 1200;
}

.user-menu.visible {
    display: block !important;
}

.user-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    font-size: 14px;
    color: var(--text-color-primary);
    cursor: pointer;
    transition: background 0.2s;
}

.user-menu-item:hover {
    background: var(--bg-hover);
}

/* Sidebar Footer Adjustments */
.sidebar .sidebar-footer {
    border-top: 1px solid transparent !important;
    /* Effectively hidden but keeps layout */
    margin-top: auto;
    padding: 12px 0;
}

/* Remove border line in profile section */
.sidebar-footer {
    border-top: none !important;
}

/* Hide legacy elements */
.search-bar i,
.search-bar input {
    display: none !important;
}