:root {
    color-scheme: dark;
    --bg-body: #020617;
    --bg-header: #0f172a;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #334155;
    --link: #60a5fa;
    --accent: #3b82f6;
    --bg-menu: #1e293b;
}
html[data-theme="light"] {
    color-scheme: light;
    --bg-body: #f8fafc;
    --bg-header: #ffffff;
    --text: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --link: #2563eb;
    --accent: #2563eb;
    --bg-menu: #ffffff;
}
* { box-sizing: border-box; }
html, body {
    margin: 0;
    background: var(--bg-body);
    color: var(--text);
    font-family: system-ui, sans-serif;
    min-height: 100%;
}
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; }
.site-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1rem;
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    min-height: 2.6rem;
}
.brand { font-weight: 650; color: var(--text); }
.crumbs {
    display: flex;
    flex-wrap: nowrap;
    gap: 0.35rem;
    color: var(--text-muted);
    min-width: 0;
    flex: 1;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.crumbs a,
.crumbs span { flex-shrink: 0; white-space: nowrap; }
.sep { color: var(--border); }
.browse { padding: 1rem 1.25rem 2rem; max-width: 1100px; }
.meta { color: var(--text-muted); font-size: 0.85rem; }
.empty { color: var(--text-muted); }
.back { color: var(--link); flex-shrink: 0; }
.title {
    color: var(--text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    min-width: 0;
    flex: 1;
}
.site-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 0.45rem;
    flex-shrink: 0;
    flex-wrap: wrap;
}
.header-btn,
.logout-form button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    border-radius: 6px;
    padding: 0.25rem 0.65rem;
    cursor: pointer;
    font: inherit;
    text-decoration: none;
    display: inline-block;
}
.header-btn:hover,
.logout-form button:hover { color: var(--text); }
a.header-btn:hover { text-decoration: none; }
.login-page {
    max-width: 22rem;
    margin: 12vh auto 0;
    padding: 0 1.25rem;
}
.login-page h1 { font-size: 1.4rem; margin: 0 0 1.25rem; }
.login-page label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0.75rem 0 0.3rem;
}
.login-page input,
.browse-dialog input,
.browse-dialog select {
    width: 100%;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-header);
    color: var(--text);
    font: inherit;
}
.login-page button {
    width: 100%;
    margin-top: 1.1rem;
    padding: 0.6rem;
    border: 0;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}
.login-error { color: #fca5a5; }
.login-ok { color: #86efac; }
html[data-theme="light"] .login-ok { color: #15803d; }
.browse-toolbar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.6rem 0.85rem;
    margin-bottom: 0.75rem;
}
.browse-check-all {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--text-muted);
    font-size: 0.85rem;
}
.browse-selection { color: var(--text); font-size: 0.85rem; }
.browse-upload { position: relative; }
.browse-upload .browse-menu {
    position: absolute;
    top: calc(100% + 4px);
    left: 0;
    min-width: 8.5rem;
}
.browse-table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
}
.browse-table {
    width: max-content;
    min-width: 100%;
    border-collapse: collapse;
}
.browse-table th,
.browse-table td {
    text-align: left;
    padding: 0.45rem 0.4rem;
    border-bottom: 1px solid var(--border);
    vertical-align: middle;
    white-space: nowrap;
}
.browse-table th button {
    background: none;
    border: 0;
    color: var(--text-muted);
    font: inherit;
    font-size: 0.8rem;
    cursor: pointer;
    padding: 0;
}
.browse-table th button[aria-sort="ascending"]::after { content: " ▲"; font-size: 0.7em; }
.browse-table th button[aria-sort="descending"]::after { content: " ▼"; font-size: 0.7em; }
.col-check { width: 2rem; }
.col-size { width: 7.5rem; }
.col-mtime { width: 9.5rem; }
.col-menu { width: 2.4rem; text-align: right; }
.browse-name { color: var(--text); }
.row-menu-btn {
    background: none;
    border: 0;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0.1rem 0.35rem;
}
.browse-menu {
    position: fixed;
    z-index: 20;
    min-width: 12rem;
    background: var(--bg-menu);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.25rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}
.browse-menu button {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: 0;
    color: var(--text);
    font: inherit;
    padding: 0.45rem 0.65rem;
    border-radius: 6px;
    cursor: pointer;
}
.browse-menu button:hover { background: var(--bg-body); }
.browse-dialog {
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-header);
    color: var(--text);
    padding: 1rem 1.1rem 1.1rem;
    width: min(26rem, calc(100vw - 2rem));
}
.header-btn.is-danger { color: #fca5a5; }
html[data-theme="light"] .header-btn.is-danger { color: #b91c1c; }
.browse-delete-message { margin: 0; color: var(--text-muted); font-size: 0.9rem; line-height: 1.5; }
.browse-dialog label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0.65rem 0 0.3rem;
}
.share-url-row { display: flex; gap: 0.4rem; margin-top: 0.85rem; }
.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.45rem;
    margin-top: 1rem;
}
.browse-upload-status {
    margin: 0.75rem 0 0;
    font-size: 0.85rem;
    color: var(--text-muted);
}
.browse-upload-status.is-error { color: #fca5a5; }
html[data-theme="light"] .browse-upload-status.is-error { color: #b91c1c; }
.browse.is-drop-target {
    outline: 2px dashed var(--accent);
    outline-offset: -6px;
}
.users-page { padding: 1rem 1.25rem 2rem; max-width: 1100px; }
.users-page h1 { font-size: 1.15rem; margin: 0 0 0.5rem; }
.users-note { color: var(--text-muted); font-size: 0.9rem; margin: 0 0 1rem; }
.users-table input[type="password"] {
    min-width: 10rem;
    padding: 0.35rem 0.5rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-header);
    color: var(--text);
    font: inherit;
}
.users-inline, .users-actions { display: flex; flex-wrap: wrap; gap: 0.35rem; align-items: center; }
.users-add {
    margin-top: 1.5rem;
    max-width: 22rem;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.users-add h2 { font-size: 0.95rem; margin: 0; }
.users-add label { color: var(--text-muted); font-size: 0.85rem; }
.users-add input[type="text"],
.users-add input[type="password"] {
    display: block;
    width: 100%;
    margin-top: 0.25rem;
    padding: 0.55rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-header);
    color: var(--text);
    font: inherit;
}
.users-check { display: flex; align-items: center; gap: 0.4rem; }