/* ============================================================================
   SIDEBAR — Consolidated Navigation Sidebar Styles
   Single source of truth for all sidebar layout, states, and responsive behavior.
   
   States managed by mobile-sidebar.js:
   - Mobile  (< 768px):  .open     → slideIn overlay
   - Tablet  (768–1024): .expanded → widen from icon-only
   - Desktop (> 1024):   .collapsed → shrink to icon-only
   ============================================================================ */

/* === BASE SIDEBAR === */
.sidebar {
    position: fixed;
    top: var(--header-height, 70px);
    height: calc(100vh - var(--header-height, 70px));
    width: var(--sidebar-width, 250px);

    display: flex;
    flex-direction: column;
    z-index: 50;

    /* Glassmorphism */
    background: rgba(255, 255, 255, 0.7);
    border-right: 1px solid rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);

    /* Mobile default: hidden off-screen */
    transform: translateX(-100%);
    transition: transform 0.3s ease, width 0.3s ease, background-color 0.3s;
}

[data-theme="dark"] .sidebar {
    background: rgba(15, 23, 42, 0.3);
    border-right-color: rgba(255, 255, 255, 0.05);
}

/* Open state — slide in (used on all breakpoints) */
.sidebar.open {
    transform: translateX(0) !important;
    width: var(--sidebar-width, 250px) !important;
}

/* Hidden state — force off-screen */
.sidebar.hidden {
    transform: translateX(-100%) !important;
}

/* === NAVIGATION === */
.sidebar-nav {
    padding: 1.5rem 1rem;
    flex: 1;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    margin-bottom: 0.25rem;
    border-radius: 8px;
    font-weight: 500;
    color: var(--text-secondary, rgb(71, 85, 105));
    text-decoration: none;
    transition: background-color 150ms, color 150ms;
}

.nav-item:hover {
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--primary-color, #3b82f6);
}

[data-theme="dark"] .nav-item:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    background-color: var(--primary-soft, rgba(59, 130, 246, 0.1));
    color: var(--primary-color, #3b82f6);
}

[data-theme="dark"] .nav-item.active {
    background-color: rgba(59, 130, 246, 0.15);
}

/* SVG icons inside nav items */
.nav-item svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
}

/* Legacy .nav-icon class (if used) */
.nav-icon {
    margin-right: 0.75rem;
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

/* === SIDEBAR FOOTER === */
.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .sidebar-footer {
    border-top-color: rgba(255, 255, 255, 0.05);
}

.sidebar-footer-divider {
    margin-top: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.sidebar-footer-text {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* === SIDEBAR OVERLAY (Mobile backdrop) === */
.sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 40;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* === MAIN CONTENT (layout partner) === */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding-top: 1.25rem;
    margin-left: 0;
    transition: margin-left 0.3s ease, width 0.3s ease;
}

.main-content.expanded {
    margin-left: 0 !important;
    width: 100% !important;
}

/* ============================================================================
   RESPONSIVE BREAKPOINTS
   ============================================================================ */

/* === MOBILE (< 768px): Sidebar hidden, toggles as overlay === */
@media (max-width: 767px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }
}

/* === TABLET (768px – 1024px): Icon-only by default, expands on toggle === */
@media (min-width: 768px) and (max-width: 1024px) {
    .sidebar {
        transform: translateX(0);
        width: 70px;
        overflow: hidden;
    }

    /* Hide text labels */
    .sidebar .nav-item > span {
        display: none;
    }

    /* Center nav items (icon-only) */
    .sidebar .nav-item {
        justify-content: center;
        padding: 0.75rem;
        gap: 0;
    }

    /* Ensure SVG icons visible */
    .sidebar .nav-item svg {
        width: 24px;
        height: 24px;
    }

    /* Hide footer in icon-only mode */
    .sidebar > div:last-child {
        display: none;
    }

    /* Tighter nav padding */
    .sidebar .sidebar-nav {
        padding: 1rem 0.5rem;
    }

    /* -- Tablet EXPANDED state (burger click) -- */
    .sidebar.expanded {
        width: var(--sidebar-width, 250px) !important;
        overflow: visible;
    }

    .sidebar.expanded .nav-item > span {
        display: inline;
    }

    .sidebar.expanded .nav-item {
        justify-content: flex-start;
        padding: 0.75rem 1rem;
        gap: 0.75rem;
    }

    .sidebar.expanded .sidebar-nav {
        padding: 1.5rem 1rem;
    }

    .sidebar.expanded > div:last-child {
        display: block;
    }

    /* Main content offset */
    .main-content {
        margin-left: 70px;
    }

    /* Adjust when sidebar is expanded via :has() */
    .dashboard-layout:has(.sidebar.expanded) .main-content {
        margin-left: var(--sidebar-width, 250px);
    }
}

/* === DESKTOP (> 1024px): Full sidebar by default, collapses on toggle === */
@media (min-width: 1025px) {
    .sidebar {
        transform: translateX(0);
        width: var(--sidebar-width, 250px);
    }

    /* -- Desktop COLLAPSED state (burger click) -- */
    .sidebar.collapsed {
        width: 70px;
        overflow: hidden;
    }

    /* Hide text labels in collapsed mode */
    .sidebar.collapsed .nav-item > span {
        display: none;
    }

    /* Center nav items */
    .sidebar.collapsed .nav-item {
        justify-content: center;
        padding: 0.75rem;
        gap: 0;
    }

    /* Ensure SVG icons visible */
    .sidebar.collapsed .nav-item svg {
        width: 24px;
        height: 24px;
    }

    /* Hide footer */
    .sidebar.collapsed > div:last-child {
        display: none;
    }

    /* Tighter nav padding */
    .sidebar.collapsed .sidebar-nav {
        padding: 1rem 0.5rem;
    }

    /* Main content offset */
    .main-content {
        margin-left: var(--sidebar-width, 250px);
    }

    /* Adjust when sidebar is collapsed via :has() */
    .dashboard-layout:has(.sidebar.collapsed) .main-content {
        margin-left: 70px;
    }
}