/* style.css - Modernized */
:root {
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6;
    --accent-hover: #2563eb;
    --border-color: #334155;
    --success-color: #10b981;
    --error-color: #ef4444;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    width: 100%;
}

.main-layout {
    display: flex;
    min-height: 100vh;
    width: 100%;
}

/* Sidebar */
.sidebar {
    width: 260px;
    flex: 0 0 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: -0.025em;
}

.sidebar-nav {
    flex-grow: 1;
    padding: 1.5rem 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: all 0.2s;
}

.sidebar-nav li a:hover, .sidebar-nav li a.active {
    color: var(--text-primary);
    background-color: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--accent-color);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.logout-btn {
    display: flex;
    align-items: center;
    color: var(--error-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.logout-btn:hover {
    opacity: 1;
}

/* Content Area */
.content-wrapper {
    flex: 1 1 auto;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.topbar {
    height: 64px;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 2rem;
    justify-content: flex-end;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-name {
    font-weight: 500;
    font-size: 0.9rem;
}

.content {
    padding: 2rem;
    width: 100%;
    flex-grow: 1;
}

/* Page Headers */
.page-header {
    margin-bottom: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.page-title h1 {
    font-size: 1.875rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.page-actions {
    display: flex;
    gap: 1rem;
}

/* Components */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
}

.btn-secondary {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

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

.btn-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border-color: rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
    background-color: var(--error-color);
    color: white;
}

/* File Manager Grid */
.file-grid {
    display: flex;
    gap: 1.5rem;
    align-items: stretch;
    height: calc(100vh - 250px);
    min-height: 500px;
}

.file-list-container {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
}

.resizer {
    width: 8px;
    margin: 0 -4px;
    cursor: col-resize;
    z-index: 10;
    transition: background-color 0.2s;
    border-radius: 4px;
}

.resizer:hover, .resizer.resizing {
    background-color: rgba(59, 130, 246, 0.3);
}

.inspector-container {
    width: 350px;
    min-width: 250px;
    max-width: 80%;
    display: flex;
    flex-direction: column;
}

@media (max-width: 1024px) {
    .file-grid {
        flex-direction: column;
        height: auto;
        gap: 1.5rem;
    }
    .inspector-container {
        width: 100% !important;
        max-width: 100%;
        height: 600px;
    }
    .resizer {
        display: none;
    }
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.table-container {
    flex: 1;
    overflow-y: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th {
    position: sticky;
    top: 0;
    background-color: var(--card-bg);
    z-index: 5;
    text-align: left;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

tr:last-child td {
    border-bottom: none;
}

tr.file-row {
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

tr.file-row:hover {
    background-color: rgba(255, 255, 255, 0.05);
    cursor: pointer;
}

tr.active-file {
    background-color: rgba(59, 130, 246, 0.15) !important;
    border-left: 3px solid var(--accent-color);
}

tr.active-file td {
    color: var(--text-primary);
}

/* Icons */
.icon {
    width: 1.25rem;
    height: 1.25rem;
    display: inline-block;
    vertical-align: middle;
}

.folder-icon { color: #f59e0b; }
.view-toggle-btn.active {
    background: var(--accent-color) !important;
    color: white !important;
    border-radius: 4px;
}

/* Modals & Overlays */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.modal-overlay .card {
    width: 100%;
    max-width: 600px;
    padding: 2rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.grid-view {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
    padding: 1.5rem;
}

.grid-item {
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
    cursor: pointer;
    position: relative;
}

.grid-item:hover {
    transform: translateY(-4px);
    border-color: var(--accent-color);
}

.grid-item.active-file {
    border-color: var(--accent-color);
    background: rgba(59, 130, 246, 0.1);
    box-shadow: 0 0 0 2px var(--accent-color);
}

.grid-thumb {
    width: 100%;
    aspect-ratio: 1;
    background: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.grid-thumb img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.grid-info {
    padding: 0.75rem;
}

.grid-name {
    font-size: 0.8125rem;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--text-primary);
}

.grid-meta {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

.grid-checkbox {
    position: absolute;
    top: 8px;
    left: 8px;
    z-index: 5;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Inspector Refinements */
.inspector-tabs {
    background-color: var(--card-bg);
    z-index: 10;
    position: sticky;
    top: 0;
}

.inspector-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--card-bg);
    flex-shrink: 0;
}

.inspector-body {
    padding: 0; /* Padding handled by internal elements for better pinning */
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

#preview-container {
    position: sticky;
    top: 0;
    z-index: 5;
    background-color: var(--card-bg);
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.inspector-details {
    padding: 1.25rem;
}

.meta-table {
    width: 100%;
}

.meta-table td {
    padding: 0.5rem 0;
    font-size: 0.8rem;
    border: none;
}

.meta-label {
    color: var(--text-secondary);
    width: 40%;
}

/* Messages */
.message {
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    font-size: 0.875rem;
}

.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
    border: 1px solid rgba(239, 68, 68, 0.2);
}

/* Upload Section */
.upload-zone {
    margin-top: 2rem;
    padding: 2rem;
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    text-align: center;
    transition: border-color 0.2s;
}

.upload-zone:hover {
    border-color: var(--accent-color);
}

.progress-container {
    margin-top: 1rem;
    text-align: left;
}

.progress-item {
    margin-bottom: 1rem;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
    font-size: 0.75rem;
}

progress {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    overflow: hidden;
    background-color: var(--bg-color);
    border: none;
}

progress::-webkit-progress-bar {
    background-color: var(--bg-color);
}

progress::-webkit-progress-value {
    background-color: var(--accent-color);
}

/* Breadcrumbs */
.breadcrumbs {
    display: flex;
    gap: 0.5rem;
    align-items: center;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.breadcrumb-item:hover {
    color: var(--text-primary);
    cursor: pointer;
}

.separator {
    color: var(--border-color);
}

.topbar-brand {
    display: none;
}

.mobile-fab {
    display: none;
}

/* Mobile Bottom Navigation & Topbar Enhancements */
@media (max-width: 768px) {
    .main-layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: fixed;
        bottom: 0;
        top: auto;
        flex-direction: row;
        z-index: 1100;
        border-right: none;
        border-top: 1px solid var(--border-color);
        background-color: var(--sidebar-bg);
        box-shadow: 0 -4px 10px rgba(0,0,0,0.3);
        padding-bottom: env(safe-area-inset-bottom);
    }

    .sidebar-header {
        display: none;
    }

    .sidebar-nav {
        padding: 0;
        width: 100%;
    }

    .sidebar-nav div:first-child {
        display: none; /* Hide search in sidebar on mobile */
    }

    .sidebar-nav ul {
        display: flex;
        justify-content: space-around;
        width: 100%;
    }

    .sidebar-nav li {
        flex: 1;
    }

    .sidebar-nav li a {
        flex-direction: column;
        padding: 0.6rem 0.25rem;
        font-size: 0.65rem;
        gap: 0.2rem;
        border-left: none !important;
        border-bottom: 3px solid transparent;
        text-align: center;
        justify-content: center;
        color: var(--text-secondary);
    }

    .sidebar-nav li a.active {
        border-bottom: 3px solid var(--accent-color);
        background-color: transparent;
        color: var(--accent-color);
    }

    .sidebar-nav li a i {
        width: 20px;
        height: 20px;
    }

    .sidebar-nav li a span {
        margin-left: 0 !important;
        font-weight: 600;
    }

    .sidebar-footer {
        display: none;
    }

    .content-wrapper {
        padding-bottom: 80px; /* Space for bottom nav */
    }

    .topbar {
        padding: 0 1rem;
        height: 60px;
        background-color: var(--sidebar-bg);
        justify-content: space-between;
        position: sticky;
        top: 0;
        z-index: 1000;
        box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    }

    .topbar-brand {
        display: flex !important;
        align-items: center;
        gap: 0.5rem;
        font-weight: 800;
        color: var(--accent-color);
        font-size: 1.25rem;
        letter-spacing: -0.05em;
    }

    .mobile-search-toggle {
        display: block !important;
        margin-left: auto;
        margin-right: 0.5rem;
    }

    .content {
        padding: 1rem;
    }

    /* Mobile Floating Action Button (FAB) */
    .mobile-fab {
        display: flex !important;
        position: fixed;
        right: 1.25rem;
        bottom: 5.5rem;
        width: 56px;
        height: 56px;
        border-radius: 28px;
        background-color: var(--accent-color);
        color: white;
        box-shadow: 0 4px 12px rgba(59, 130, 246, 0.4);
        z-index: 1050;
        align-items: center;
        justify-content: center;
        border: none;
        cursor: pointer;
        transition: transform 0.2s, background-color 0.2s;
    }

    .mobile-fab:active {
        transform: scale(0.9);
        background-color: var(--accent-hover);
    }

    .page-header {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
        margin-bottom: 1.5rem;
    }

    .page-title h1 {
        font-size: 1.5rem;
    }

    .page-actions {
        display: flex !important;
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .page-actions .btn {
        flex: 1;
        justify-content: center;
        min-width: 140px;
        padding: 0.75rem;
        font-size: 0.875rem;
    }

    /* Table to Card Transformation */
    table, tbody, td, tr {
        display: block;
    }

    thead, thead tr, th {
        display: none !important;
    }

    .table-container {
        background: transparent;
        border: none;
    }

    tr.file-row {
        background-color: var(--card-bg);
        border: 1px solid var(--border-color);
        border-radius: 0.75rem;
        margin-bottom: 0.75rem;
        padding: 0.75rem;
        position: relative;
        transition: transform 0.2s;
    }

    tr.file-row:active {
        transform: scale(0.98);
        background-color: rgba(255,255,255,0.02);
    }

    tr.file-row td {
        border: none;
        padding: 0;
    }

    /* Checkbox positioning on card */
    tr.file-row td:first-child {
        position: absolute;
        top: 0.75rem;
        right: 0.75rem;
        z-index: 2;
    }

    /* Name and Type */
    tr.file-row td:nth-child(2) {
        margin-bottom: 0.5rem;
    }

    /* Meta Info */
    tr.file-row td:nth-child(3) {
        color: var(--text-secondary);
        font-size: 0.75rem;
        display: block !important;
    }

    /* Actions hidden or moved to menu */
    tr.file-row td:last-child {
        display: none !important;
    }

    /* Inspector Bottom Sheet */
    .inspector-container {
        position: fixed !important;
        bottom: 0;
        left: 0;
        width: 100% !important;
        height: 70vh !important;
        max-width: 100%;
        z-index: 1200;
        border-radius: 1.5rem 1.5rem 0 0 !important;
        box-shadow: 0 -10px 25px rgba(0,0,0,0.5);
        transform: translateY(100%);
        transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }

    .inspector-container.active {
        transform: translateY(0);
    }

    .inspector-header {
        border-radius: 1.5rem 1.5rem 0 0;
        padding: 1rem 1.5rem;
    }

    /* Gallery Grid Adjustment */
    .grid-view {
        grid-template-columns: 1fr 1fr !important;
        gap: 0.75rem;
        padding: 0;
    }

    .gallery-grid {
        grid-template-columns: 1fr !important;
    }

    .grid-info {
        padding: 0.5rem;
    }

    .grid-name {
        font-size: 0.75rem;
    }

    /* Modal Fixes */
    .modal-overlay {
        padding: 1rem;
    }
    
    .modal-overlay .card {
        width: 100% !important;
        margin: 0;
        border-radius: 1rem;
    }
}

.inspector-container.expanded {
    position: fixed !important;
    top: 1rem;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    width: calc(100% - 2rem) !important;
    height: calc(100% - 2rem) !important;
    max-width: none !important;
    z-index: 2100;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.inspector-container.expanded .inspector-body {
    flex-direction: row;
    overflow: hidden;
    position: relative;
}

.inspector-container.expanded #preview-container {
    width: 60%;
    height: 100%;
    border-bottom: none;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.inspector-container.expanded #zoom-wrapper {
    aspect-ratio: auto;
    flex: 1;
}

.inspector-container.expanded .inspector-tabs {
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    z-index: 10;
}

.inspector-container.expanded .inspector-details {
    flex: 1;
    width: 40%;
    padding-top: 3.5rem; /* Room for tabs */
    overflow-y: auto;
}

@media (max-width: 1024px) {
    .inspector-container.expanded .inspector-body {
        flex-direction: column;
        overflow-y: auto;
    }
    .inspector-container.expanded #preview-container,
    .inspector-container.expanded .inspector-details {
        width: 100%;
    }
    .inspector-container.expanded .inspector-tabs {
        position: static;
        width: 100%;
    }
    .inspector-container.expanded .inspector-details {
        padding-top: 1.25rem;
    }
}

.inspector-tabs .tab-btn.active {
    color: var(--accent-color) !important;
    border-bottom-color: var(--accent-color) !important;
}

.btn-stretch.active {
    background: var(--accent-color) !important;
    color: white !important;
}