/* Layout */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    height: 100%;
}

.brand {
    height: 80px;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    color: #fff;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar .actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 0.75rem;
    color: var(--primary-color);
    font-size: 1.5rem;
}

.brand-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.brand-text h1 {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.2;
    margin: 0;
    color: #fff;
}

.brand-text span {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--sidebar-text);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.nav-menu {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    color: #fff;
    background-color: rgba(239, 68, 68, 0.1);
    border-left-color: var(--primary-color);
}

.nav-item i {
    width: 20px;
    margin-right: 12px;
    font-size: 1.1rem;
    text-align: center;
}

/* Sidebar Folders */
.nav-folder {
    margin-bottom: 0.5rem;
}

.nav-folder-header {
    display: flex;
    align-items: center;
    padding: 0.8rem 1.5rem;
    color: var(--sidebar-text);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    user-select: none;
}

.nav-folder-header:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.nav-folder-header i:first-child {
    margin-right: 12px;
    font-size: 1rem;
    color: var(--primary-color);
}

.folder-arrow {
    margin-left: auto;
    font-size: 0.75rem;
    transition: transform 0.3s;
    opacity: 0.5;
}

.nav-folder.expanded .folder-arrow {
    transform: rotate(180deg);
}

.nav-folder-content {
    display: none;
    padding-left: 0.5rem;
}

.nav-folder.expanded .nav-folder-content {
    display: block;
}

.nav-folder-content .nav-item {
    padding-left: 2.5rem;
    font-size: 0.85rem;
}

/* UI Helpers */
.nav-separator {
    height: 1px;
    background: rgba(255, 255, 255, 0.08);
    margin: 1rem 1.5rem;
}

.nav-spacer {
    flex: 1;
}

.nav-spacer+.nav-item {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.user-profile {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.avatar {
    width: 32px;
    height: 32px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
}

.user-info p {
    color: #fff;
    font-size: 0.85rem;
    font-weight: 500;
}

.user-info span {
    font-size: 0.75rem;
    color: var(--sidebar-text);
}

/* Main Area */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--bg-color);
}

/* Page Content */
.page-content {
    flex: 1;
    overflow-y: hidden;
    /* Manage overflow per view */
    display: flex;
    flex-direction: column;
    padding: 0;
    /* Reset padding, views handle it */
}

/* Page Headers */
.view-header {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.view-header h2 {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-primary);
}

.view-header i {
    color: var(--primary-color);
    font-size: 1.6rem;
}

/* Tab Views */
.view-section {
    display: none;
    flex-direction: column;
    align-items: center;
    /* Centering globally */
    height: 100%;
    overflow-y: auto;
    padding: 2rem;
}

.view-section>* {
    width: 100%;
    max-width: 1400px;
    margin-left: auto;
    margin-right: auto;
}

/* Settings looks better more compact */
.settings-container {
    max-width: 900px !important;
}

/* Mobile Sidebar & Layout */
/* Mobile Navigation Drawer & Header */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
        height: 100dvh;
        width: 100%;
        overflow: hidden;
    }

    /* Floating Mobile Top Bar */
    .mobile-top-bar {
        height: 60px;
        background: #1e293b;
        color: white;
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding: 0 1rem;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 1001;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .top-bar .actions {
        display: none !important;
    }

    .mobile-brand {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        font-weight: 700;
        letter-spacing: 1px;
    }

    .mobile-brand i {
        color: var(--primary-color);
        font-size: 1.2rem;
    }

    /* Sidebar Overlay */
    .sidebar-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        backdrop-filter: blur(4px);
        z-index: 1002;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
    }

    .sidebar-overlay.open {
        opacity: 1;
        visibility: visible;
    }

    /* Sidebar as Drawer */
    .sidebar {
        position: fixed;
        top: 0;
        left: -100%;
        /* Hidden by default */
        width: 280px;
        height: 100%;
        z-index: 1003;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: 10px 0 30px rgba(0, 0, 0, 0.3);
        display: flex;
        flex-direction: column;
        background-color: var(--sidebar-bg);
    }

    .sidebar.open {
        left: 0;
    }

    /* Glass effect for the mobile header */
    .mobile-top-bar {
        background: rgba(30, 41, 59, 0.9) !important;
        backdrop-filter: blur(8px);
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .brand {
        display: flex !important;
        padding: 1.5rem;
        height: auto;
    }

    .user-profile {
        display: flex !important;
        margin-top: auto;
        padding: 1.5rem;
        background: rgba(255, 255, 255, 0.05);
    }

    .nav-menu {
        flex: 1;
        display: flex;
        flex-direction: column;
        padding: 1rem 0;
        overflow-y: auto;
        justify-content: flex-start;
    }

    .nav-item {
        flex-direction: row;
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
        border-top: none;
        border-left: 3px solid transparent;
        gap: 12px;
        width: 100%;
        justify-content: flex-start;
        flex: none;
    }

    .nav-item i {
        width: 20px;
        text-align: center;
        font-size: 1.1rem;
    }

    .nav-item.active {
        border-left-color: var(--primary-color);
        background: rgba(239, 68, 68, 0.1);
        border-top: none;
    }

    .nav-folder-header,
    .nav-separator,
    .nav-spacer {
        display: flex;
    }

    .nav-folder-header {
        padding: 0.8rem 1.5rem;
    }

    .nav-folder-content .nav-item {
        padding-left: 2.5rem;
    }

    .main-content {
        padding-top: 60px;
        /* Space for Top Bar */
        padding-bottom: 0;
    }

    .view-section {
        padding: 0.75rem 1rem 150px 1rem !important;
        height: calc(100dvh - 60px);
    }
}

/* Global Filter Dropdowns (Modern Pointer System) */
.filter-bar {
    position: relative !important;
    overflow: visible !important;
}

.filter-dropdown {
    position: absolute !important;
    top: calc(100% + 12px) !important;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.25) !important;
    border: 1px solid var(--border-color);
    overflow: visible !important;
    display: none !important;
    z-index: 2000 !important;
    min-width: 280px;
    flex-direction: column;
}

.filter-dropdown.open {
    display: flex !important;
}

/* Desktop: Align to parent button (Shorter/Narrower) */
@media (min-width: 769px) {
    .filter-group {
        position: relative !important;
        width: fit-content;
    }

    .filter-dropdown {
        left: 50% !important;
        transform: translateX(-50%) !important;
        width: 320px !important;
        /* Narrower width for desktop */
        animation: slideUpFadeDesktop 0.3s ease-out;
    }

    .filter-dropdown::before,
    .filter-dropdown::after {
        left: 50% !important;
        transform: translateX(-50%) !important;
    }
}

/* Mobile: Full Screen Width & Pointer Precision */
@media (max-width: 768px) {
    .filter-group {
        position: static !important;
    }

    .filter-dropdown {
        left: 0 !important;
        right: 0 !important;
        width: auto !important;
        margin: 0 1rem !important;
        animation: slideUpFadeMobile 0.3s ease-out;
    }

    .filter-dropdown::before,
    .filter-dropdown::after {
        left: var(--pointer-x, 50%) !important;
        transform: translateX(-50%) !important;
    }
}

.filter-dropdown::before {
    content: '';
    position: absolute;
    top: -8px;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-bottom: 8px solid white;
    z-index: 2001;
}

.filter-dropdown::after {
    content: '';
    position: absolute;
    top: -9px;
    border-left: 9px solid transparent;
    border-right: 9px solid transparent;
    border-bottom: 9px solid var(--border-color);
    z-index: 2000;
}

@keyframes slideUpFadeDesktop {
    from {
        opacity: 0;
        transform: translate(-50%, 10px);
    }

    to {
        opacity: 1;
        transform: translate(-50%, 0);
    }
}

@keyframes slideUpFadeMobile {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Visibility Helpers */
.show-mobile {
    display: none !important;
}

.hide-mobile {
    display: flex !important;
}

@media (max-width: 768px) {
    .show-mobile {
        display: flex !important;
    }

    .hide-mobile {
        display: none !important;
    }
}