/* ===================================================================
   LiDAR Capture Viewer — Design System & Page Styles
   =================================================================== */

/* --- Reset / Normalize --- */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen,
        Ubuntu, Cantarell, 'Helvetica Neue', Arial, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--text);
    background: var(--bg-deep);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, video, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-dim);
}

ul, ol {
    list-style: none;
}

button, input, select, textarea {
    font: inherit;
    color: inherit;
    border: none;
    outline: none;
    background: none;
}

button {
    cursor: pointer;
}

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

/* --- CSS Custom Properties --- */
:root {
    --bg-deep: #0a0e17;
    --bg-surface: #141b2d;
    --bg-elevated: #1a2240;
    --bg-input: #0f1524;
    --accent: #00d4ff;
    --accent-dim: #0099bb;
    --accent-glow: rgba(0, 212, 255, 0.15);
    --text: #e2e8f0;
    --text-muted: #64748b;
    --text-dim: #475569;
    --border: #1e293b;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 32px rgba(0,0,0,0.5);
    --shadow-glow: 0 0 20px var(--accent-glow);

    --transition: 0.2s ease;

    --nav-height: 60px;
    --sidebar-width: 320px;

    --z-nav: 100;
    --z-modal-overlay: 200;
    --z-modal: 210;
    --z-toast: 300;
    --z-viewer-overlay: 50;
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-deep);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-dim);
}

/* Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border) var(--bg-deep);
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.container-wide {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
}

.grid {
    display: grid;
    gap: 24px;
}

.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.gap-sm { gap: 8px; }
.gap-md { gap: 16px; }
.gap-lg { gap: 24px; }

.mt-sm { margin-top: 8px; }
.mt-md { margin-top: 16px; }
.mt-lg { margin-top: 24px; }
.mt-xl { margin-top: 48px; }
.mb-sm { margin-bottom: 8px; }
.mb-md { margin-bottom: 16px; }
.mb-lg { margin-bottom: 24px; }

.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-accent { color: var(--accent); }
.text-sm { font-size: 0.8125rem; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
    font-weight: 500;
    line-height: 1.3;
    color: var(--text);
}

h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.125rem; }
h5 { font-size: 1rem; }

/* --- Navigation --- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    background: rgba(10, 14, 23, 0.8);
    backdrop-filter: blur(16px) saturate(180%);
    -webkit-backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border);
    z-index: var(--z-nav);
    display: flex;
    align-items: center;
}

.nav-inner {
    width: 100%;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-left {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text);
    text-decoration: none;
}

.nav-logo:hover {
    color: var(--text);
}

.nav-logo-icon {
    color: var(--accent);
    font-size: 1.25rem;
    display: inline-flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-link {
    padding: 6px 14px;
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 450;
    transition: color var(--transition), background var(--transition);
    text-decoration: none;
}

.nav-link:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

.nav-link.active {
    color: var(--accent);
    background: var(--accent-glow);
}

.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    color: var(--text-muted);
}

.nav-user-name {
    color: var(--text);
    font-weight: 500;
}

.nav-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
}

/* Page body offset for fixed nav */
.page-body {
    padding-top: var(--nav-height);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 18px;
    font-size: 0.875rem;
    font-weight: 500;
    line-height: 1.4;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    color: var(--text);
    background: var(--bg-surface);
    transition: all var(--transition);
    white-space: nowrap;
    cursor: pointer;
    text-decoration: none;
}

.btn:hover {
    background: var(--bg-elevated);
    border-color: var(--text-dim);
    color: var(--text);
}

.btn-primary {
    background: var(--accent);
    border-color: var(--accent);
    color: #0a0e17;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--accent-dim);
    border-color: var(--accent-dim);
    color: #0a0e17;
    box-shadow: var(--shadow-glow);
}

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

.btn-secondary:hover {
    border-color: var(--accent);
    color: var(--accent);
    background: var(--accent-glow);
}

.btn-danger {
    background: transparent;
    border-color: var(--error);
    color: var(--error);
}

.btn-danger:hover {
    background: rgba(239, 68, 68, 0.15);
    border-color: var(--error);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.8125rem;
}

.btn-icon {
    padding: 8px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    border-radius: var(--radius);
}

.btn-icon:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

.btn:disabled,
.btn.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
}

/* --- Form Inputs --- */
.input,
.select,
.textarea {
    width: 100%;
    padding: 10px 14px;
    font-size: 0.875rem;
    color: var(--text);
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color var(--transition), box-shadow var(--transition);
}

.input:focus,
.select:focus,
.textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.input::placeholder,
.textarea::placeholder {
    color: var(--text-dim);
}

.select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
    cursor: pointer;
}

.textarea {
    resize: vertical;
    min-height: 100px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-hint {
    font-size: 0.75rem;
    color: var(--text-dim);
}

/* --- Tags --- */
.tag {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 10px;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 999px;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(0, 212, 255, 0.2);
    white-space: nowrap;
}

.tag-clickable {
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition);
}

.tag-clickable:hover,
.tag-clickable.active {
    background: rgba(0, 212, 255, 0.25);
    border-color: var(--accent);
}

.tag-muted {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
    border-color: rgba(100, 116, 139, 0.2);
}

.tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

/* --- Badges --- */
.badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    font-size: 0.6875rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.badge-ready {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.badge-processing {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.badge-pending {
    background: rgba(100, 116, 139, 0.15);
    color: var(--text-muted);
}

.badge-error {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.badge-public {
    background: rgba(16, 185, 129, 0.12);
    color: var(--success);
}

.badge-authenticated {
    background: rgba(245, 158, 11, 0.12);
    color: var(--warning);
}

.badge-private {
    background: rgba(239, 68, 68, 0.12);
    color: var(--error);
}

/* --- Capture Cards --- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    padding-bottom: 48px;
}

.capture-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--transition), box-shadow var(--transition),
        border-color var(--transition);
    cursor: pointer;
    text-decoration: none;
    color: inherit;
    display: block;
}

.capture-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: rgba(0, 212, 255, 0.3);
    color: inherit;
}

.capture-card-thumb {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--bg-elevated) 0%, var(--bg-deep) 100%);
}

.capture-card-thumb-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, #0f1a2e 0%, #162040 40%, #0d1525 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.capture-card-thumb-placeholder::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1px 1px at 20% 30%, rgba(0, 212, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50% 60%, rgba(0, 212, 255, 0.2), transparent),
        radial-gradient(1px 1px at 80% 20%, rgba(0, 212, 255, 0.25), transparent),
        radial-gradient(1px 1px at 35% 80%, rgba(0, 212, 255, 0.15), transparent),
        radial-gradient(1px 1px at 65% 45%, rgba(0, 212, 255, 0.2), transparent),
        radial-gradient(1px 1px at 10% 70%, rgba(0, 212, 255, 0.18), transparent),
        radial-gradient(1px 1px at 90% 85%, rgba(0, 212, 255, 0.22), transparent);
}

.capture-card-thumb-placeholder::after {
    content: '\2B24';
    font-size: 2rem;
    color: rgba(0, 212, 255, 0.12);
    z-index: 1;
}

.capture-card-body {
    padding: 16px;
}

.capture-card-title {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.capture-card-location {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.capture-card-meta {
    display: flex;
    align-items: center;
    gap: 16px;
    font-size: 0.75rem;
    color: var(--text-dim);
}

.capture-card-meta-item {
    display: flex;
    align-items: center;
    gap: 4px;
}

.capture-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px 14px 16px;
}

.capture-card-tags {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

/* --- Stat Cards --- */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 16px;
}

.stat-card {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 20px;
    text-align: center;
}

.stat-card-value {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
    line-height: 1.2;
}

.stat-card-value.accent {
    color: var(--accent);
}

.stat-card-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-top: 6px;
}

/* --- Admin Table --- */
.admin-table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
}

.admin-table {
    width: 100%;
    font-size: 0.875rem;
}

.admin-table th {
    text-align: left;
    padding: 12px 16px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-muted);
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.admin-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}

.admin-table tbody tr {
    transition: background var(--transition);
}

.admin-table tbody tr:hover {
    background: rgba(26, 34, 64, 0.5);
}

.admin-table tbody tr:last-child td {
    border-bottom: none;
}

.admin-table .thumb-cell {
    width: 60px;
}

.admin-table .thumb-cell img {
    width: 48px;
    height: 32px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: var(--bg-deep);
}

.admin-table .actions-cell {
    white-space: nowrap;
    text-align: right;
}

.admin-table .actions-cell .btn {
    margin-left: 6px;
}

/* --- Upload Dropzone --- */
.dropzone {
    border: 2px dashed var(--border);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    transition: all var(--transition);
    cursor: pointer;
    position: relative;
}

.dropzone:hover {
    border-color: var(--text-dim);
    background: rgba(26, 34, 64, 0.3);
}

.dropzone.drag-over {
    border-color: var(--accent);
    background: var(--accent-glow);
    box-shadow: inset 0 0 30px var(--accent-glow);
}

.dropzone-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
    opacity: 0.5;
}

.dropzone-text {
    font-size: 0.9375rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.dropzone-text strong {
    color: var(--accent);
}

.dropzone-hint {
    font-size: 0.8125rem;
    color: var(--text-dim);
}

.dropzone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

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

.modal {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    transform: translateY(16px);
    transition: transform 0.2s ease;
}

.modal-overlay.open .modal {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 1.125rem;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    color: var(--text-muted);
    transition: all var(--transition);
    font-size: 1.25rem;
    cursor: pointer;
    background: none;
    border: none;
}

.modal-close:hover {
    background: var(--bg-elevated);
    color: var(--text);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 20px;
    font-size: 0.875rem;
    color: var(--text);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 10px;
    min-width: 280px;
    max-width: 420px;
    pointer-events: auto;
    animation: toastIn 0.3s ease forwards;
    border-left: 3px solid var(--accent);
}

.toast.toast-success {
    border-left-color: var(--success);
}

.toast.toast-error {
    border-left-color: var(--error);
}

.toast.toast-warning {
    border-left-color: var(--warning);
}

.toast.toast-out {
    animation: toastOut 0.2s ease forwards;
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(40px);
    }
}

/* --- Spinner --- */
.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
    display: inline-block;
}

.spinner-lg {
    width: 40px;
    height: 40px;
    border-width: 3px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* --- Loading Overlay --- */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: var(--bg-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    z-index: 1000;
    transition: opacity 0.4s ease;
}

.loading-overlay.fade-out {
    opacity: 0;
    pointer-events: none;
}

.loading-text {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Hero Section --- */
.hero {
    padding: 80px 0 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 12px;
    position: relative;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 520px;
    margin: 0 auto;
    position: relative;
}

.hero-scan-line {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    animation: scanLine 4s ease-in-out infinite;
    opacity: 0.4;
}

@keyframes scanLine {
    0%, 100% { transform: translateX(-100%); }
    50% { transform: translateX(100%); }
}

/* --- Filter Bar --- */
.filter-bar {
    padding: 0 0 32px;
}

.filter-bar-inner {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
}

.filter-search {
    flex: 1;
    min-width: 240px;
    position: relative;
}

.filter-search .input {
    padding-left: 40px;
}

.filter-search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-dim);
    font-size: 0.875rem;
    pointer-events: none;
}

.filter-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

/* --- Empty State --- */
.empty-state {
    text-align: center;
    padding: 80px 24px;
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state-title {
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.empty-state-text {
    font-size: 0.9375rem;
    max-width: 400px;
    margin: 0 auto;
}

/* --- Sign In Prompt --- */
.auth-prompt {
    text-align: center;
    padding: 32px;
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    margin-top: 24px;
}

.auth-prompt p {
    color: var(--text-muted);
    margin-bottom: 16px;
}

/* --- Visibility Icons --- */
.vis-public::before { content: '\1F441\FE0F '; }
.vis-authenticated::before { content: '\1F512 '; }
.vis-private::before { content: '\1F6E1\FE0F '; }

/* --- Footer --- */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-dim);
    font-size: 0.8125rem;
}

/* ===================================================================
   Map Page
   =================================================================== */
.map-page {
    height: calc(100vh - var(--nav-height));
    position: relative;
}

.map-container {
    width: 100%;
    height: 100%;
}

/* Override Leaflet popup */
.leaflet-popup-content-wrapper {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    color: var(--text) !important;
    padding: 0 !important;
}

.leaflet-popup-tip {
    background: var(--bg-surface) !important;
    border: 1px solid var(--border) !important;
}

.leaflet-popup-close-button {
    color: var(--text-muted) !important;
    font-size: 20px !important;
    top: 6px !important;
    right: 8px !important;
}

.leaflet-popup-close-button:hover {
    color: var(--text) !important;
}

.leaflet-popup-content {
    margin: 0 !important;
    font-family: inherit !important;
    font-size: 0.875rem !important;
    line-height: 1.5 !important;
}

.map-popup {
    width: 280px;
}

.map-popup-thumb {
    width: 100%;
    height: 140px;
    object-fit: cover;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    background: linear-gradient(135deg, var(--bg-elevated), var(--bg-deep));
}

.map-popup-body {
    padding: 14px;
}

.map-popup-title {
    font-weight: 500;
    margin-bottom: 4px;
    font-size: 0.9375rem;
}

.map-popup-location {
    color: var(--text-muted);
    font-size: 0.8125rem;
    margin-bottom: 8px;
}

.map-popup-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
    margin-bottom: 12px;
}

.map-popup-link {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--accent);
}

.map-popup-link:hover {
    color: var(--accent-dim);
}

/* Leaflet marker cluster overrides */
.marker-cluster-small,
.marker-cluster-medium,
.marker-cluster-large {
    background: rgba(0, 212, 255, 0.2) !important;
}

.marker-cluster-small div,
.marker-cluster-medium div,
.marker-cluster-large div {
    background: rgba(0, 212, 255, 0.5) !important;
    color: #fff !important;
    font-weight: 600 !important;
    font-family: inherit !important;
}

.map-legend {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 1000;
    background: rgba(10, 14, 23, 0.9);
    backdrop-filter: blur(12px);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 12px 16px;
    font-size: 0.8125rem;
    color: var(--text-muted);
    min-width: 160px;
}

.map-legend h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.map-legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 2px 0;
}

.map-legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

/* ===================================================================
   Viewer Page
   =================================================================== */

/* Potree takes full viewport; our overlays sit on top */
.viewer-page {
    width: 100%;
    height: 100vh;
    overflow: hidden;
    position: relative;
}

#potree_container {
    width: 100%;
    height: 100%;
}

/* Top bar overlaying the Potree viewer */
.viewer-topbar {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 56px;
    background: rgba(10, 14, 23, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 16px;
    z-index: var(--z-viewer-overlay);
}

.viewer-topbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.viewer-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: var(--radius);
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: all var(--transition);
    text-decoration: none;
}

.viewer-back:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

.viewer-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 400px;
}

.viewer-topbar-right {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Info panel (right side, overlaying viewer) */
.viewer-info-panel {
    position: absolute;
    top: 56px;
    right: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: rgba(10, 14, 23, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-left: 1px solid var(--border);
    z-index: var(--z-viewer-overlay);
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    padding: 24px;
}

.viewer-info-panel.open {
    transform: translateX(0);
}

.viewer-info-section {
    margin-bottom: 24px;
}

.viewer-info-section h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.viewer-info-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 0.8125rem;
}

.viewer-info-row .label {
    color: var(--text-muted);
}

.viewer-info-row .value {
    color: var(--text);
    font-weight: 450;
    text-align: right;
}

.viewer-info-desc {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Map inset (small corner map) */
.viewer-map-inset {
    position: absolute;
    bottom: 24px;
    right: 24px;
    width: 220px;
    height: 160px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-lg);
    z-index: var(--z-viewer-overlay);
    transition: opacity 0.25s ease, transform 0.25s ease;
}

.viewer-map-inset.collapsed {
    width: 40px;
    height: 40px;
    border-radius: var(--radius);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 14, 23, 0.85);
}

.viewer-map-inset .leaflet-container {
    width: 100%;
    height: 100%;
}

.viewer-map-toggle {
    position: absolute;
    top: 6px;
    right: 6px;
    z-index: 1000;
    width: 24px;
    height: 24px;
    background: rgba(10, 14, 23, 0.8);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.viewer-map-toggle:hover {
    color: var(--text);
    background: var(--bg-elevated);
}

/* Loading state in viewer */
.viewer-loading {
    position: absolute;
    inset: 0;
    background: var(--bg-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 20px;
    z-index: 60;
    transition: opacity 0.5s ease;
}

.viewer-loading.hidden {
    opacity: 0;
    pointer-events: none;
}

.viewer-loading-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--text);
}

.viewer-loading-sub {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Potree sidebar toggle override (hide default, use our control) */
#potree_sidebar_container {
    z-index: var(--z-viewer-overlay);
}

/* ===================================================================
   Admin Page
   =================================================================== */
.admin-page {
    padding: 32px 0 64px;
}

.admin-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
}

.admin-section {
    margin-bottom: 48px;
}

.admin-section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.upload-form {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 16px;
}

.upload-progress {
    margin-top: 16px;
    display: none;
}

.upload-progress.active {
    display: block;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--bg-deep);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    transition: width 0.3s ease;
}

.progress-text {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-top: 6px;
    text-align: center;
}

/* Confirm dialog */
.confirm-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 16px;
}

/* ===================================================================
   Animations
   =================================================================== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(16px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.4s ease forwards;
}

.fade-in-up-delay-1 { animation-delay: 0.05s; opacity: 0; }
.fade-in-up-delay-2 { animation-delay: 0.1s; opacity: 0; }
.fade-in-up-delay-3 { animation-delay: 0.15s; opacity: 0; }
.fade-in-up-delay-4 { animation-delay: 0.2s; opacity: 0; }

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.3s ease forwards;
}

/* ===================================================================
   Responsive
   =================================================================== */
@media (max-width: 768px) {
    :root {
        --nav-height: 52px;
    }

    .container,
    .container-wide {
        padding: 0 16px;
    }

    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }

    .hero {
        padding: 48px 0 32px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .filter-bar-inner {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-search {
        min-width: 100%;
    }

    .nav-links {
        display: none;
    }

    .nav-logo span {
        display: none;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .viewer-title {
        max-width: 180px;
    }

    .viewer-info-panel {
        width: 100%;
    }

    .viewer-map-inset {
        bottom: 16px;
        right: 16px;
        width: 160px;
        height: 120px;
    }

    .admin-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }

    .stat-card {
        padding: 14px;
    }

    .stat-card-value {
        font-size: 1.25rem;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* --- Address Autocomplete Dropdown --- */
.address-dropdown {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    z-index: 100;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
    max-height: 240px;
    overflow-y: auto;
}

.address-dropdown.open {
    display: block;
}

.address-dropdown-item {
    padding: 10px 14px;
    font-size: 0.875rem;
    color: var(--text);
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    line-height: 1.4;
}

.address-dropdown-item:last-child {
    border-bottom: none;
}

.address-dropdown-item:hover,
.address-dropdown-item.active {
    background: var(--bg-hover);
}

.address-dropdown-loading {
    padding: 12px 14px;
    font-size: 0.8125rem;
    color: var(--text-dim);
    text-align: center;
}