/* File: upload/assets/style.css */
:root {
    --bg: #f3f4f6;
    --card: #ffffff;
    --text: #1f2937;
    --muted: #6b7280;
    --border: #e5e7eb;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --success: #16a34a;
    --track: #e5e7eb;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #111827;
        --card: #1f2937;
        --text: #f3f4f6;
        --muted: #9ca3af;
        --border: #374151;
        --accent: #3b82f6;
        --accent-hover: #60a5fa;
        --danger: #f87171;
        --danger-hover: #fca5a5;
        --success: #4ade80;
        --track: #374151;
    }
}

* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.page {
    max-width: 780px;
    margin: 0 auto;
    padding: 24px 16px 60px;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 8px;
}
.topbar h1 {
    font-size: 1.4em;
    font-weight: 600;
    margin: 0;
}
.topbar nav a {
    color: var(--accent);
    text-decoration: none;
    margin-left: 16px;
    font-size: 0.95em;
}
.topbar nav a:first-child { margin-left: 0; }
.topbar nav a:hover { text-decoration: underline; }

.hint {
    color: var(--muted);
    font-size: 0.9em;
    line-height: 1.5;
    margin: 12px 0 20px;
}

/* --- Icon đơn giản bằng emoji, không phụ thuộc font ngoài để trang tải nhanh --- */
.icon-lock::before { content: "🔒"; margin-right: 8px; }
.icon-folder::before { content: "📁"; margin-right: 8px; }
.icon-upload::before { content: "⬆️"; margin-right: 8px; }
.icon-cloud::before { content: "☁️"; }

/* --- Vùng kéo thả --- */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    background: var(--card);
    padding: 40px 20px;
    text-align: center;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease;
}
.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--accent);
    background: color-mix(in srgb, var(--accent) 6%, var(--card));
}
.drop-zone-inner i { font-size: 2.4em; display: block; margin-bottom: 8px; }
.drop-zone-inner p { margin: 0; color: var(--muted); }

/* --- Hàng đợi upload --- */
.queue { margin-top: 20px; display: flex; flex-direction: column; gap: 10px; }
.upload-row {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
}
.upload-row .row-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 8px;
}
.upload-row .fname {
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}
.upload-row .fmeta {
    font-size: 0.82em;
    color: var(--muted);
    white-space: nowrap;
}
.progress-track {
    height: 8px;
    border-radius: 4px;
    background: var(--track);
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--accent);
    width: 0%;
    transition: width .15s ease;
}
.upload-row.status-done .progress-fill { background: var(--success); }
.upload-row.status-error .progress-fill { background: var(--danger); }
.upload-row.status-pending { border-style: dashed; }
.upload-row.status-pending .progress-fill { background: var(--muted); }

.row-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
    gap: 10px;
}
.row-status { font-size: 0.85em; color: var(--muted); }
.upload-row.status-error .row-status { color: var(--danger); }
.upload-row.status-done .row-status { color: var(--success); }

.row-actions button {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.82em;
    cursor: pointer;
    margin-left: 6px;
}
.row-actions button:hover { border-color: var(--accent); color: var(--accent); }
.row-actions a.download-link { color: var(--accent); font-size: 0.85em; text-decoration: none; }
.row-actions a.download-link:hover { text-decoration: underline; }

/* --- Danh sách file (files.php) --- */
.empty-note { color: var(--muted); }
.file-table { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.file-table th, .file-table td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); font-size: 0.92em; }
.file-table th { color: var(--muted); font-weight: 600; font-size: 0.85em; }
.file-table tr:last-child td { border-bottom: none; }
.file-table .fname a { color: var(--accent); text-decoration: none; }
.file-table .fname a:hover { text-decoration: underline; }
.file-table .actions { white-space: nowrap; text-align: right; }
.file-table .actions button {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 6px;
    padding: 4px 10px;
    font-size: 0.85em;
    cursor: pointer;
    margin-left: 6px;
}
.file-table .btn-delete:hover { border-color: var(--danger); color: var(--danger-hover); }
.file-table .btn-copy:hover { border-color: var(--accent); color: var(--accent); }

/* --- Trang đăng nhập --- */
.auth-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; padding: 16px; }
.auth-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 32px 28px;
    width: 100%;
    max-width: 340px;
    text-align: center;
}
.auth-card h1 { font-size: 1.3em; margin: 0 0 4px; }
.auth-sub { color: var(--muted); font-size: 0.9em; margin: 0 0 20px; }
.auth-error { color: var(--danger); font-size: 0.88em; margin: 0 0 12px; }
.auth-card input[type=password] {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg);
    color: var(--text);
    font-size: 1em;
    margin-bottom: 12px;
}
.auth-card button {
    width: 100%;
    padding: 10px 12px;
    border: none;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 1em;
    cursor: pointer;
}
.auth-card button:hover { background: var(--accent-hover); }

@media (max-width: 480px) {
    .file-table { display: block; overflow-x: auto; }
    .row-bottom { flex-wrap: wrap; }
}