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

/* ── Variables ── */
:root {
    --accent:    #00897b;
    --accent2:   #00695c;
    --bg:        #0a0a0a;
    --surface:   rgba(20, 20, 20, 0.65);
    --surface2:  rgba(35, 35, 35, 0.70);
    --border:    #2a2a2a;
    --text:      #f0f0f0;
    --muted:     #666;
    --radius:    14px;
    --max-width: 900px;
}

/* ── Base ── */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    color: var(--text);
    min-height: 100vh;
    background-color: var(--bg);
    background-image:
        linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)),
        url('/static/bg.jpg'),
        url('https://images.unsplash.com/photo-1519741497674-611481863552?w=1920&q=80');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* ── Navbar ── */
.navbar {
    position: sticky; top: 0; z-index: 50;
    background: rgba(10,10,10,0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 20px;
    height: 56px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
}
.navbar-brand {
    font-weight: 700;
    font-size: 1em;
    justify-self: start;
}
.navbar-user {
    font-size: 0.85em;
    color: var(--muted);
    justify-self: center;
    text-align: center;
}
.btn-logout {
    justify-self: end;
    background: rgba(220, 38, 38, 0.15);
    border: 1px solid rgba(220, 38, 38, 0.4);
    color: #f87171;
    padding: 6px 14px;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.82em;
    transition: background 0.2s, border-color 0.2s;
    backdrop-filter: blur(8px);
}
.btn-logout:hover {
    background: rgba(220, 38, 38, 0.30);
    border-color: rgba(220, 38, 38, 0.7);
    color: #fca5a5;
}

/* ── Page wrapper ── */
.page {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 24px 16px 80px;
}

/* ────────────────────────────────
   AUTH PAGE
──────────────────────────────── */
.auth-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
}
.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px 32px;
    width: 100%;
    max-width: 450px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.auth-card h1 { font-size: 1.8em; text-align: center; margin-bottom: 8px; }
.auth-card p  { text-align: center; color: var(--muted); margin-bottom: 28px; }

.form-group { margin-bottom: 16px; }
.form-group label {
    display: block;
    margin-bottom: 6px;
    color: #aaa;
    font-size: 0.9em;
}
.form-group input {
    width: 100%; padding: 12px 16px;
    background: var(--surface2);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text);
    font-size: 1em;
    outline: none;
    transition: border 0.2s;
}
.form-group input:focus { border-color: var(--accent); }

.btn-primary {
    width: 100%; padding: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border: none; border-radius: 10px;
    color: white; font-size: 1em; font-weight: 600;
    cursor: pointer; margin-top: 8px; transition: opacity 0.2s;
}
.btn-primary:hover { opacity: 0.9; }

.error-msg { color: #ff5252; text-align: center; margin-top: 12px; font-size: 0.9em; }

/* ────────────────────────────────
   GALLERY PAGE
──────────────────────────────── */
.upload-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 28px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 10px;
    margin: 16px;
    padding: 28px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background 0.2s;
    position: relative;
}
.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(0,137,123,0.06);
}
.drop-zone input[type="file"] {
    position: absolute; inset: 0;
    opacity: 0; cursor: pointer;
    width: 100%; height: 100%;
}
.drop-zone-icon { font-size: 2em; margin-bottom: 8px; }
.drop-zone-text { color: var(--muted); font-size: 0.9em; line-height: 1.5; }
.drop-zone-text strong { color: var(--text); }

.preview-strip {
    display: flex; gap: 8px;
    padding: 0 16px 12px;
    overflow-x: auto;
    scrollbar-width: none;
}
.preview-strip:empty { display: none; }
.preview-strip::-webkit-scrollbar { display: none; }

.preview-thumb {
    flex-shrink: 0;
    width: 64px; height: 64px;
    border-radius: 8px;
    border: 2px solid var(--border);
    background: var(--surface2);
    display: flex; align-items: center; justify-content: center;
    font-size: 1.5em;
    overflow: hidden;
}
.preview-thumb img { width: 100%; height: 100%; object-fit: cover; }

.upload-controls {
    display: flex; gap: 10px; align-items: center;
    padding: 12px 16px 16px;
    border-top: 1px solid var(--border);
    flex-wrap: wrap;
}
.toggle-label {
    display: flex; align-items: center; gap: 8px;
    cursor: pointer; font-size: 0.88em; color: var(--muted);
    user-select: none;
}
.toggle-label input { display: none; }
.toggle-track {
    width: 38px; height: 21px;
    background: var(--border);
    border-radius: 11px;
    position: relative;
    transition: background 0.2s;
    flex-shrink: 0;
}
.toggle-label input:checked + .toggle-track { background: var(--accent); }
.toggle-track::after {
    content: '';
    position: absolute;
    width: 15px; height: 15px;
    background: white; border-radius: 50%;
    top: 3px; left: 3px;
    transition: left 0.2s;
}
.toggle-label input:checked + .toggle-track::after { left: 20px; }

.btn-upload {
    margin-left: auto;
    padding: 10px 22px;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    border: none; border-radius: 24px;
    color: white; font-weight: 600; font-size: 0.9em;
    cursor: pointer; transition: opacity 0.2s; white-space: nowrap;
}
.btn-upload:hover    { opacity: 0.88; }
.btn-upload:disabled { opacity: 0.4; cursor: not-allowed; }

.progress-bar {
    height: 3px;
    background: var(--border);
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    width: 0%;
    transition: width 0.4s;
}

.tabs {
    display: flex; gap: 6px;
    margin-bottom: 16px;
}
.tab-btn {
    flex: 1; padding: 10px 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--muted); font-size: 0.88em;
    cursor: pointer; transition: all 0.2s;
    backdrop-filter: blur(8px);
}
.tab-btn.active {
    background: var(--surface2);
    border-color: #444;
    color: var(--text);
}

.gallery-header {
    display: flex; align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}
.gallery-header h3 { font-size: 0.95em; color: var(--muted); font-weight: 500; }
.gallery-count {
    font-size: 0.8em; color: var(--muted);
    background: var(--surface2);
    padding: 2px 10px; border-radius: 10px;
}

/* ────────────────────────────────
   SHARED: GRID & ITEMS
──────────────────────────────── */
.gallery-grid,
.admin-grid {
    display: grid;
    gap: 3px;
}
.gallery-grid { grid-template-columns: repeat(5, 1fr); }
.admin-grid   { grid-template-columns: repeat(5, 1fr); margin-bottom: 32px; }

@media (max-width: 700px) {
    .gallery-grid,
    .admin-grid { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 480px) {
    .gallery-grid,
    .admin-grid { grid-template-columns: repeat(3, 1fr); }
}

.gallery-item {
    aspect-ratio: 1;
    overflow: hidden;
    cursor: pointer;
    border-radius: 4px;
    position: relative;
    background: var(--surface2);
}
.gallery-item img,
.gallery-item video {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.25s;
}
.gallery-item:hover img,
.gallery-item:hover video { transform: scale(1.06); }
.gallery-item .author-badge {
    position: absolute; bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.75));
    color: white; font-size: 0.65em;
    padding: 12px 5px 4px;
    opacity: 0; transition: opacity 0.2s;
}
.gallery-item:hover .author-badge { opacity: 1; }
.gallery-item .video-badge {
    position: absolute; top: 5px; right: 5px;
    background: rgba(0,0,0,0.6);
    border-radius: 4px;
    padding: 2px 5px;
    font-size: 0.65em; color: white;
}

/* ────────────────────────────────
   ADMIN PAGE
──────────────────────────────── */
.stats-bar {
    display: flex; gap: 12px;
    margin-bottom: 28px;
    flex-wrap: wrap;
}
.stat-card {
    flex: 1; min-width: 110px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
    text-align: center;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.stat-card .value {
    font-size: 2em; font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.stat-card .label {
    font-size: 0.78em; color: var(--muted); margin-top: 4px;
}

.section-header {
    display: flex; align-items: center; gap: 10px;
    margin-bottom: 14px;
}
.section-header h2 { font-size: 1em; font-weight: 600; color: #aaa; }
.section-badge {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 2px 10px; border-radius: 10px;
    font-size: 0.78em; color: var(--muted);
}

.user-folder {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    margin-bottom: 10px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}
.user-folder-header {
    padding: 14px 18px;
    cursor: pointer;
    display: flex; justify-content: space-between; align-items: center;
    transition: background 0.2s;
    user-select: none;
}
.user-folder-header:hover { background: rgba(255,255,255,0.04); }
.folder-info { display: flex; align-items: center; gap: 10px; font-size: 0.95em; }
.file-count {
    background: var(--surface2);
    border: 1px solid var(--border);
    padding: 2px 8px; border-radius: 10px;
    font-size: 0.78em; color: var(--muted);
}
.chevron { color: var(--muted); transition: transform 0.25s; font-size: 0.8em; }
.user-folder-header.open .chevron { transform: rotate(180deg); }
.user-folder-body {
    display: none;
    padding: 10px;
    border-top: 1px solid var(--border);
}
.user-folder-body.open { display: block; }

/* ────────────────────────────────
   SHARED: EMPTY & LOADING
──────────────────────────────── */
.empty-state {
    grid-column: 1 / -1;
    padding: 48px 20px;
    text-align: center;
    color: var(--muted);
}
.empty-state .icon { font-size: 2.5em; margin-bottom: 12px; }
.empty-state p     { font-size: 0.9em; }
.empty-folder {
    padding: 20px;
    text-align: center;
    color: var(--muted);
    font-size: 0.88em;
}

/* ────────────────────────────────
   SHARED: LIGHTBOX
──────────────────────────────── */
.lightbox {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,0.97);
    z-index: 9999;
    align-items: center; justify-content: center;
}
.lightbox.active { display: flex; }
.lightbox img,
.lightbox video {
    max-width: 92vw; max-height: 86vh;
    object-fit: contain; border-radius: 4px;
}
.lb-close {
    position: absolute; top: 16px; right: 16px;
    width: 40px; height: 40px; border-radius: 50%;
    background: rgba(255,255,255,0.1); border: none;
    color: white; font-size: 20px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s; z-index: 1;
}
.lb-close:hover { background: rgba(255,255,255,0.2); }
.lb-nav {
    position: absolute; top: 50%; transform: translateY(-50%);
    width: 46px; height: 46px; border-radius: 50%;
    background: rgba(255,255,255,0.1); border: none;
    color: white; font-size: 20px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: background 0.2s; z-index: 1;
}
.lb-nav:hover    { background: rgba(255,255,255,0.2); }
.lb-nav:disabled { opacity: 0.2; cursor: default; }
.lb-prev { left: 14px; }
.lb-next { right: 14px; }
.lb-footer {
    position: absolute; bottom: 0; left: 0; right: 0;
    padding: 32px 20px 20px;
    background: linear-gradient(transparent, rgba(0,0,0,0.85));
    display: flex; align-items: center; justify-content: center; gap: 10px;
}
.lb-info { flex: 1; text-align: center; color: white; }
.lb-counter { font-size: 0.8em; color: #999; }
.lb-author  { font-size: 0.9em; font-weight: 600; margin-top: 2px; }
.lb-btn {
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.18);
    color: white; padding: 8px 16px; border-radius: 20px;
    font-size: 0.82em; cursor: pointer; text-decoration: none;
    white-space: nowrap; transition: background 0.2s;
}
.lb-btn:hover { background: rgba(255,255,255,0.22); }

/* ────────────────────────────────
   SHARED: TOAST
──────────────────────────────── */
.toast {
    position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
    background: var(--surface2);
    border: 1px solid var(--border);
    color: white; padding: 12px 22px; border-radius: 24px;
    font-size: 0.9em; box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    opacity: 0; pointer-events: none; transition: opacity 0.3s;
    z-index: 9000; white-space: nowrap;
    backdrop-filter: blur(12px);
}
.toast.show { opacity: 1; }

/* ────────────────────────────────
   ADMIN: USERS TABLE
──────────────────────────────── */

.users-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9em;
}
.users-table th {
    text-align: left;
    padding: 10px 14px;
    color: var(--muted);
    font-weight: 500;
    font-size: 0.78em;
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    white-space: nowrap;
}
.users-table td {
    padding: 12px 14px;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
}
.users-table tr:last-child td { border-bottom: none; }
.users-table tr:hover td { background: rgba(255,255,255,0.02); }

@media (max-width: 540px) {
    .users-table thead { display: none; }

    .users-table tr {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        padding: 12px 14px;
        border-bottom: 1px solid var(--border);
        gap: 8px;
    }
    .users-table tr:last-child { border-bottom: none; }

    .users-table td:nth-child(1) {
        width: 100%;
        padding: 0;
        border: none;
    }
    .users-table td:nth-child(2),
    .users-table td:nth-child(3),
    .users-table td:nth-child(4) {
        padding: 0;
        border: none;
        font-size: 0.82em;
        color: var(--muted);
    }
    .users-table td:nth-child(2)::before { content: "Pubbliche "; }
    .users-table td:nth-child(3)::before { content: "Private "; }
    .users-table td:nth-child(4)::before { content: "tot: "; }

    .users-table td:nth-child(5) {
        margin-left: auto;
        padding: 0;
        border: none;
    }
}

/* ────────────────────────────────
   RESPONSIVE
──────────────────────────────── */
@media (max-width: 480px) {
    .page        { padding: 16px 10px 60px; }
    .stats-bar   { gap: 8px; }
    .stat-card   { padding: 12px; }
    .stat-card .value { font-size: 1.6em; }
    .auth-card   { padding: 28px 20px; }
}