/* ------------------------------------------------------------ tokens */
:root {
  --bg: #fafafa;
  --panel: #ffffff;
  --sidebar: #f4f4f5;
  --elev: #ffffff;
  --border: #e4e4e7;
  --border-strong: #d4d4d8;
  --text: #18181b;
  --muted: #71717a;
  --faint: #a1a1aa;
  --hover: rgba(24, 24, 27, .05);
  --active: rgba(24, 24, 27, .08);
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --accent-soft: rgba(79, 70, 229, .10);
  --accent-text: #ffffff;
  --danger: #dc2626;
  --danger-soft: rgba(220, 38, 38, .10);
  --success: #16a34a;
  --warn: #d97706;
  --shadow: 0 1px 2px rgba(0,0,0,.04), 0 8px 24px rgba(0,0,0,.08);
  --shadow-lg: 0 24px 64px rgba(0,0,0,.18);
  --overlay: rgba(9, 9, 11, .45);
  --radius: 10px;
  --radius-lg: 14px;
  --sidebar-w: 248px;
  --font: "Segoe UI Variable Text", "Segoe UI", Inter, system-ui, -apple-system, sans-serif;
  --mono: "Cascadia Code", "Cascadia Mono", Consolas, ui-monospace, monospace;

  --c-folder: #e0a431;
  --c-image: #10b981;
  --c-video: #8b5cf6;
  --c-audio: #ec4899;
  --c-doc: #3b82f6;
  --c-pdf: #ef4444;
  --c-archive: #f97316;
  --c-code: #06b6d4;
  --c-other: #a1a1aa;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0b0b0e; --panel: #111114; --sidebar: #0e0e11; --elev: #17171b;
    --border: #232329; --border-strong: #2f2f36; --text: #ededf0; --muted: #8b8b95; --faint: #5f5f69;
    --hover: rgba(255,255,255,.05); --active: rgba(255,255,255,.08);
    --accent: #7c83ff; --accent-hover: #939aff; --accent-soft: rgba(124,131,255,.14); --accent-text: #0b0b0e;
    --danger: #f87171; --danger-soft: rgba(248,113,113,.12); --success: #4ade80; --warn: #fbbf24;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
    --shadow-lg: 0 24px 64px rgba(0,0,0,.6); --overlay: rgba(0,0,0,.6);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0b0b0e; --panel: #111114; --sidebar: #0e0e11; --elev: #17171b;
  --border: #232329; --border-strong: #2f2f36; --text: #ededf0; --muted: #8b8b95; --faint: #5f5f69;
  --hover: rgba(255,255,255,.05); --active: rgba(255,255,255,.08);
  --accent: #7c83ff; --accent-hover: #939aff; --accent-soft: rgba(124,131,255,.14); --accent-text: #0b0b0e;
  --danger: #f87171; --danger-soft: rgba(248,113,113,.12); --success: #4ade80; --warn: #fbbf24;
  --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.4);
  --shadow-lg: 0 24px 64px rgba(0,0,0,.6); --overlay: rgba(0,0,0,.6);
  color-scheme: dark;
}

/* ------------------------------------------------------------ base */
*, *::before, *::after { box-sizing: border-box; }
html, body, #root { height: 100%; }
body { overflow: hidden; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.45 var(--font); -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}
button, input, select, textarea { font: inherit; color: inherit; }
a { color: var(--accent); text-decoration: none; }
[hidden] { display: none !important; }
::selection { background: var(--accent-soft); }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }
.grow { flex: 1; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

svg.i { width: 18px; height: 18px; flex: none; stroke: currentColor; fill: none;
  stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
svg.i.sm { width: 16px; height: 16px; }
svg.i.lg { width: 22px; height: 22px; }

/* scrollbars */
* { scrollbar-width: thin; scrollbar-color: var(--border-strong) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 10px; border: 3px solid transparent; background-clip: content-box; }

/* ------------------------------------------------------------ buttons & inputs */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 34px; padding: 0 12px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text); cursor: pointer; white-space: nowrap;
  font-weight: 500; transition: background .12s, border-color .12s, color .12s, transform .06s;
}
.btn:hover { background: var(--hover); border-color: var(--border-strong); }
.btn:active { transform: translateY(1px); }
.btn:disabled { opacity: .5; pointer-events: none; }
.btn.primary { background: var(--accent); border-color: transparent; color: var(--accent-text); }
.btn.primary:hover { background: var(--accent-hover); }
.btn.danger { background: var(--danger); border-color: transparent; color: #fff; }
.btn.danger:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; border-color: transparent; }
.btn.ghost:hover { background: var(--hover); }
.btn.icon { width: 34px; padding: 0; }
.btn.sm { height: 28px; padding: 0 9px; font-size: 13px; border-radius: 7px; }
.btn.sm.icon { width: 28px; padding: 0; }
.btn.on { background: var(--active); }

.input {
  width: 100%; height: 38px; padding: 0 12px; border-radius: 9px;
  border: 1px solid var(--border); background: var(--panel); outline: none;
  transition: border-color .12s, box-shadow .12s;
}
.input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
select.input { padding-right: 28px; }
textarea.input { height: auto; padding: 10px 12px; resize: vertical; }
label.field { display: grid; gap: 6px; font-size: 13px; font-weight: 500; }

.seg { display: inline-flex; padding: 2px; border-radius: 9px; background: var(--hover); border: 1px solid var(--border); }
.seg .btn { height: 28px; width: 30px; padding: 0; border: 0; background: transparent; color: var(--muted); }
.seg .btn.on { background: var(--panel); color: var(--text); box-shadow: 0 1px 2px rgba(0,0,0,.08); }

.cb {
  appearance: none; width: 16px; height: 16px; margin: 0; border-radius: 5px; flex: none;
  border: 1.5px solid var(--border-strong); background: var(--panel); cursor: pointer;
  display: grid; place-items: center; transition: background .1s, border-color .1s;
}
.cb:checked { background: var(--accent); border-color: var(--accent); }
.cb:checked::after {
  content: ""; width: 9px; height: 5px; border: 2px solid var(--accent-text);
  border-top: 0; border-right: 0; transform: translateY(-1px) rotate(-45deg);
}
.cb:indeterminate { background: var(--accent); border-color: var(--accent); }
.cb:indeterminate::after { content: ""; width: 8px; height: 2px; background: var(--accent-text); border-radius: 1px; }

.kbd { font: 11px var(--mono); padding: 1px 5px; border-radius: 5px; border: 1px solid var(--border); color: var(--muted); background: var(--panel); }

/* ------------------------------------------------------------ login */
.login {
  min-height: 100%; display: grid; place-items: center; padding: 24px;
  background:
    radial-gradient(60% 50% at 50% 0%, var(--accent-soft), transparent 70%),
    var(--bg);
}
.login-card {
  width: 100%; max-width: 360px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 18px; padding: 32px 28px; box-shadow: var(--shadow);
  animation: rise .35s ease both;
}
.login-card h1 { font-size: 20px; margin: 18px 0 4px; letter-spacing: -.01em; }
.login-card p { margin: 0 0 22px; color: var(--muted); }
.login-card form { display: grid; gap: 12px; }
.login-card .btn { height: 40px; margin-top: 6px; }
.login-err { color: var(--danger); font-size: 13px; min-height: 18px; }
.login-err:empty { min-height: 0; }
.login-card.step { animation: rise .25s ease both; }
.login-card .muted.small { margin-top: -4px; }
.login-foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: 18px; font-size: 13px; }
.login-foot .muted { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; }
.small { font-size: 12.5px; }
button.link {
  all: unset; cursor: pointer; color: var(--accent); font-weight: 500; font-size: 13px; border-radius: 4px;
}
button.link:hover { text-decoration: underline; }
button.link:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.link:disabled { color: var(--muted); cursor: default; text-decoration: none; }

/* password field with eye toggle */
.pw-field { display: grid; gap: 6px; }
.pw { position: relative; }
.pw .input { padding-right: 42px; }
.pw-eye {
  all: unset; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); width: 32px; height: 32px;
  display: grid; place-items: center; border-radius: 7px; color: var(--muted); cursor: pointer;
}
.pw-eye:hover { color: var(--text); background: var(--hover); }
.pw-eye:focus-visible { outline: 2px solid var(--accent); }
.pw-caps { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--warn); }
.pw-rules { display: grid; gap: 8px; }
.pw-rules ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; font-size: 12.5px; color: var(--muted); }
.pw-rules li { display: flex; align-items: center; gap: 7px; }
.pw-rules li svg.i { width: 14px; height: 14px; color: var(--faint); }
.pw-rules li.ok { color: var(--text); }
.pw-rules li.ok svg.i { color: var(--success); }
.bar.strength { height: 5px; }
.bar.strength > div { background: var(--success); }

/* 6-digit code */
.input.otp {
  height: 56px; text-align: center; font: 600 26px/1 var(--mono); letter-spacing: .5em; padding-left: .5em;
}
.input.otp::placeholder { color: var(--faint); letter-spacing: .5em; }
.reasons { display: flex; flex-wrap: wrap; gap: 6px; }
.reasons .pill { gap: 5px; height: 24px; }
.reasons .pill svg.i { width: 13px; height: 13px; }

/* security page */
.sec-card { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 18px; margin-bottom: 22px; }
.sec-head { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.sec-head .ficon { width: 40px; height: 40px; border-radius: 12px; }
.sec-head .grow { display: grid; min-width: 200px; }
.sec-head small { color: var(--muted); }
.sec-rules { list-style: none; margin: 14px 0 0; padding: 14px 0 0; border-top: 1px solid var(--border); display: grid; gap: 7px; font-size: 13px; color: var(--muted); }
.sec-rules li { display: flex; gap: 8px; align-items: flex-start; }
.sec-rules svg.i { color: var(--success); width: 15px; height: 15px; margin-top: 2px; }
.sec-section { display: flex; align-items: baseline; gap: 10px; margin: 22px 0 10px; flex-wrap: wrap; }
.sec-section h3 { margin: 0; font-size: 15px; }
.sec-row { grid-template-columns: 32px minmax(0, 1fr) 140px auto; }
.sec-row .txt span { display: flex; align-items: center; gap: 8px; }
.sec-row .pill { height: 20px; font-size: 11px; }
.sec-form { display: grid; gap: 12px; }
.sec-form p { margin: 0; }
@media (max-width: 800px) { .sec-row { grid-template-columns: 32px minmax(0, 1fr) auto; } }
.logo {
  width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent), #a855f7); color: #fff;
}
.logo svg.i { width: 22px; height: 22px; stroke-width: 2; }

/* ------------------------------------------------------------ shell */
.shell { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100%; }
.sidebar {
  background: var(--sidebar); border-right: 1px solid var(--border);
  display: flex; flex-direction: column; padding: 14px 10px; gap: 4px; min-height: 0;
}
.brand { display: flex; align-items: center; gap: 10px; padding: 4px 8px 14px; }
.brand .logo { width: 30px; height: 30px; border-radius: 9px; }
.brand .logo svg.i { width: 16px; height: 16px; }
.brand b { font-size: 15px; letter-spacing: -.01em; }
.brand small { display: block; color: var(--muted); font-size: 12px; line-height: 1.2; }
.nav { display: grid; gap: 2px; }
.nav a {
  display: flex; align-items: center; gap: 10px; height: 36px; padding: 0 10px;
  border-radius: 8px; color: var(--muted); font-weight: 500; transition: background .12s, color .12s;
}
.nav a:hover { background: var(--hover); color: var(--text); }
.nav a.on { background: var(--active); color: var(--text); }
.nav a.on svg.i { color: var(--accent); }
.nav .count { margin-left: auto; font-size: 12px; color: var(--faint); }
.side-foot { margin-top: auto; display: grid; gap: 12px; padding: 8px; }
.meter { display: grid; gap: 7px; font-size: 12px; color: var(--muted); }
.meter b { color: var(--text); font-weight: 600; }
.bar { height: 6px; border-radius: 6px; background: var(--active); overflow: hidden; }
.bar > div { height: 100%; border-radius: 6px; background: var(--accent); transition: width .4s ease; }
.bar.warn > div { background: var(--warn); }
.bar.crit > div { background: var(--danger); }
.userbox { display: flex; align-items: center; gap: 10px; padding-top: 12px; border-top: 1px solid var(--border); }
.avatar {
  width: 30px; height: 30px; border-radius: 50%; display: grid; place-items: center;
  background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: 13px; flex: none;
}

.main { display: flex; flex-direction: column; min-width: 0; min-height: 0; background: var(--bg); }
.topbar {
  display: flex; align-items: center; gap: 10px; height: 60px; padding: 0 20px;
  border-bottom: 1px solid var(--border); background: var(--panel); flex: none;
}
.topbar .menu-btn { display: none; }
.search { position: relative; width: min(360px, 40vw); }
.search svg.i { position: absolute; left: 11px; top: 50%; transform: translateY(-50%); color: var(--faint); pointer-events: none; }
.search .input { height: 36px; padding-left: 36px; padding-right: 38px; background: var(--bg); }
.search .kbd { position: absolute; right: 9px; top: 50%; transform: translateY(-50%); }
.content { flex: 1; overflow: auto; padding: 20px 24px 120px; min-height: 0; }
.page-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 16px; min-height: 36px; }
.page-head h2 { margin: 0; font-size: 20px; letter-spacing: -.015em; font-weight: 650; }

/* breadcrumbs */
.crumbs { display: flex; align-items: center; gap: 2px; min-width: 0; flex: 1; overflow: hidden; }
.crumbs a {
  color: var(--muted); padding: 4px 8px; border-radius: 7px; white-space: nowrap; font-weight: 500;
  overflow: hidden; text-overflow: ellipsis; max-width: 220px; cursor: pointer;
}
.crumbs a:hover { background: var(--hover); color: var(--text); }
.crumbs a:last-child { color: var(--text); font-weight: 600; }
.crumbs a.drop { background: var(--accent-soft); color: var(--accent); }
.crumbs .sep { color: var(--faint); display: flex; }
.crumbs .sep svg.i { width: 14px; height: 14px; }

/* toolbar */
.toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 14px; min-height: 36px; }
.selbar {
  display: flex; align-items: center; gap: 6px; flex-wrap: wrap; padding: 4px 6px 4px 12px;
  border-radius: 10px; background: var(--accent-soft); color: var(--text); animation: fade .15s ease;
}
.selbar b { margin-right: 6px; font-weight: 600; }
.selbar .btn { background: transparent; border-color: transparent; height: 30px; }
.selbar .btn:hover { background: var(--hover); }

/* ------------------------------------------------------------ file list */
.files { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.frow {
  display: grid; grid-template-columns: 28px minmax(0, 1fr) 110px 150px 40px;
  align-items: center; gap: 10px; height: 48px; padding: 0 10px 0 14px;
  border-bottom: 1px solid var(--border); cursor: pointer; user-select: none;
  transition: background .08s;
}
.frow:last-child { border-bottom: 0; }
.frow:hover { background: var(--hover); }
.frow.sel { background: var(--accent-soft); }
.frow.drop { background: var(--accent-soft); box-shadow: inset 0 0 0 1.5px var(--accent); }
.frow.flash { animation: flash 1.6s ease; }
.frow .cb { opacity: 0; transition: opacity .1s; }
.frow:hover .cb, .frow.sel .cb, .files.selecting .cb, .fhead .cb { opacity: 1; }
.fname { display: flex; align-items: center; gap: 12px; min-width: 0; }
.fname span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.fname small { color: var(--muted); font-size: 12px; display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fname .txt { min-width: 0; display: grid; }
.fsize, .fdate { color: var(--muted); font-size: 13px; white-space: nowrap; font-variant-numeric: tabular-nums; }
.fsize { text-align: right; }
.frow .more { opacity: 0; }
.frow:hover .more, .frow .more:focus { opacity: 1; }
.fhead {
  position: sticky; top: 0; z-index: 2; height: 38px; cursor: default; background: var(--panel);
  color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: .02em;
}
.fhead:hover { background: var(--panel); }
.fhead button {
  all: unset; cursor: pointer; display: inline-flex; align-items: center; gap: 4px; padding: 3px 6px;
  margin: 0 -6px; border-radius: 6px;
}
.fhead button:hover { background: var(--hover); color: var(--text); }
.fhead .fsize { display: flex; justify-content: flex-end; }
.fhead svg.i { width: 13px; height: 13px; }

.ficon { width: 32px; height: 32px; border-radius: 8px; display: grid; place-items: center; flex: none; }
.ficon svg.i { width: 18px; height: 18px; }
.t-folder { color: var(--c-folder); background: color-mix(in srgb, var(--c-folder) 14%, transparent); }
.t-image { color: var(--c-image); background: color-mix(in srgb, var(--c-image) 13%, transparent); }
.t-video { color: var(--c-video); background: color-mix(in srgb, var(--c-video) 13%, transparent); }
.t-audio { color: var(--c-audio); background: color-mix(in srgb, var(--c-audio) 13%, transparent); }
.t-doc { color: var(--c-doc); background: color-mix(in srgb, var(--c-doc) 13%, transparent); }
.t-pdf { color: var(--c-pdf); background: color-mix(in srgb, var(--c-pdf) 13%, transparent); }
.t-archive { color: var(--c-archive); background: color-mix(in srgb, var(--c-archive) 13%, transparent); }
.t-code { color: var(--c-code); background: color-mix(in srgb, var(--c-code) 13%, transparent); }
.t-other { color: var(--c-other); background: color-mix(in srgb, var(--c-other) 14%, transparent); }
.t-folder svg.i { fill: currentColor; fill-opacity: .18; }

/* grid view */
.fgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 14px; }
.card {
  position: relative; background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  overflow: hidden; cursor: pointer; user-select: none; transition: border-color .12s, box-shadow .12s, transform .12s;
}
.card:hover { border-color: var(--border-strong); box-shadow: var(--shadow); }
.card.sel { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.card.drop { border-color: var(--accent); background: var(--accent-soft); }
.card .thumb { position: relative; aspect-ratio: 4 / 3; display: grid; place-items: center; background: var(--hover); overflow: hidden; }
.card .thumb img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; opacity: 0; transition: opacity .25s; }
.card .thumb img.ok { opacity: 1; }
.card .thumb.loaded .ficon { visibility: hidden; }
.play-badge {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 40px; height: 40px;
  border-radius: 50%; display: grid; place-items: center; background: rgba(0, 0, 0, .55); color: #fff;
  backdrop-filter: blur(4px); pointer-events: none; opacity: 0; transition: opacity .2s;
}
.thumb.loaded .play-badge { opacity: 1; }
.play-badge svg.i { width: 18px; height: 18px; fill: currentColor; stroke: none; margin-left: 2px; }
.card .thumb .ficon { width: 56px; height: 56px; border-radius: 14px; }
.card .thumb .ficon svg.i { width: 28px; height: 28px; }
.card .meta { padding: 10px 12px; display: grid; gap: 1px; }
.card .meta span { font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.card .meta small { color: var(--muted); font-size: 12px; }
.card .cb { position: absolute; top: 10px; left: 10px; opacity: 0; box-shadow: 0 1px 3px rgba(0,0,0,.25); }
.card:hover .cb, .card.sel .cb, .fgrid.selecting .cb { opacity: 1; }
.card .more { position: absolute; top: 6px; right: 6px; opacity: 0; background: var(--elev); box-shadow: 0 1px 3px rgba(0,0,0,.2); }
.card:hover .more { opacity: 1; }

.empty {
  display: grid; place-items: center; text-align: center; gap: 10px; padding: 64px 20px; color: var(--muted);
}
.empty .ficon { width: 64px; height: 64px; border-radius: 18px; }
.empty .ficon svg.i { width: 30px; height: 30px; }
.empty h3 { margin: 6px 0 0; color: var(--text); font-size: 16px; }
.empty p { margin: 0; max-width: 360px; }
.more-sentinel { height: 1px; }

.skeleton { height: 48px; border-bottom: 1px solid var(--border); position: relative; overflow: hidden; }
.skeleton::after {
  content: ""; position: absolute; inset: 14px auto 14px 56px; width: 40%; border-radius: 6px;
  background: linear-gradient(90deg, var(--hover), var(--active), var(--hover)); background-size: 200% 100%;
  animation: shimmer 1.2s linear infinite;
}

/* ------------------------------------------------------------ drop overlay */
.dropzone {
  position: fixed; inset: 0; z-index: 60; display: grid; place-items: center; pointer-events: none;
  background: color-mix(in srgb, var(--accent) 10%, transparent); backdrop-filter: blur(2px);
  animation: fade .12s ease;
}
.dropzone > div {
  border: 2px dashed var(--accent); border-radius: 20px; padding: 40px 56px; text-align: center;
  background: var(--panel); box-shadow: var(--shadow-lg); display: grid; gap: 8px; place-items: center;
}
.dropzone svg.i { width: 36px; height: 36px; color: var(--accent); }
.dropzone b { font-size: 16px; }

/* ------------------------------------------------------------ popover menu */
.menu {
  position: fixed; z-index: 90; min-width: 200px; padding: 5px; border-radius: 11px;
  background: var(--elev); border: 1px solid var(--border); box-shadow: var(--shadow-lg);
  animation: pop .12s ease; transform-origin: top left;
}
.menu button {
  all: unset; box-sizing: border-box; display: flex; align-items: center; gap: 10px; width: 100%;
  height: 34px; padding: 0 10px; border-radius: 7px; cursor: pointer; font-size: 13.5px;
}
.menu button:hover, .menu button:focus-visible { background: var(--hover); }
.menu button.danger { color: var(--danger); }
.menu button.danger:hover { background: var(--danger-soft); }
.menu button svg.i { color: var(--muted); width: 16px; height: 16px; }
.menu button.danger svg.i { color: var(--danger); }
.menu hr { border: 0; border-top: 1px solid var(--border); margin: 5px 2px; }
.menu .hint { margin-left: auto; color: var(--faint); font-size: 12px; }

/* ------------------------------------------------------------ modal */
.overlay {
  position: fixed; inset: 0; z-index: 80; background: var(--overlay); display: grid; place-items: center;
  padding: 16px; animation: fade .15s ease;
}
.modal {
  width: 100%; max-width: 440px; max-height: calc(100vh - 32px); display: flex; flex-direction: column;
  background: var(--panel); border: 1px solid var(--border); border-radius: 16px; box-shadow: var(--shadow-lg);
  animation: rise .18s ease;
}
.modal.wide { max-width: 560px; }
.modal-head { display: flex; align-items: center; gap: 10px; padding: 18px 20px 6px; }
.modal-head h3 { margin: 0; font-size: 16px; flex: 1; letter-spacing: -.01em; }
.modal-body { padding: 10px 20px 4px; overflow: auto; display: grid; gap: 14px; }
.modal-body p { margin: 0; color: var(--muted); }
.modal-foot { display: flex; justify-content: flex-end; gap: 8px; padding: 16px 20px 18px; }

/* folder picker */
.picker { border: 1px solid var(--border); border-radius: 10px; overflow: hidden; }
.picker .crumbs { padding: 6px; border-bottom: 1px solid var(--border); background: var(--bg); flex-wrap: wrap; }
.picker-list { height: 280px; overflow: auto; }
.picker-list button {
  all: unset; box-sizing: border-box; display: flex; align-items: center; gap: 10px; width: 100%;
  height: 40px; padding: 0 12px; cursor: pointer;
}
.picker-list button:hover { background: var(--hover); }
.picker-list button:disabled { opacity: .4; cursor: not-allowed; }
.picker-list .ficon { width: 26px; height: 26px; border-radius: 7px; }
.picker-list .ficon svg.i { width: 15px; height: 15px; }
.picker-list .grow { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.linkbox { display: flex; gap: 8px; }
.linkbox .input { font-family: var(--mono); font-size: 12.5px; }

/* ------------------------------------------------------------ preview */
.viewer {
  position: fixed; inset: 0; z-index: 85; background: rgba(6, 6, 8, .94); color: #ededf0;
  display: grid; grid-template-rows: auto 1fr; animation: fade .15s ease; color-scheme: dark;
}
.viewer-head { display: flex; align-items: center; gap: 8px; padding: 10px 14px; min-width: 0; }
.viewer-head .title { flex: 1; min-width: 0; display: grid; }
.viewer-head .title b { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.viewer-head .title small { color: #8b8b95; font-size: 12px; }
.viewer .btn { background: transparent; border-color: transparent; color: #ededf0; }
.viewer .btn:hover { background: rgba(255,255,255,.08); }
.viewer .btn.primary { background: #7c83ff; color: #0b0b0e; }
.viewer-stage { position: relative; min-height: 0; display: grid; place-items: center; padding: 0 64px 24px; }
.viewer-stage > img, .viewer-stage > video {
  max-width: 100%; max-height: calc(100vh - 88px); max-height: calc(100dvh - 88px);
  object-fit: contain; border-radius: 6px;
}
.viewer-stage > img { animation: fade .2s ease; }
.viewer-stage > iframe { width: 100%; height: 100%; border: 0; border-radius: 8px; background: #fff; }
.viewer-stage > audio { width: min(520px, 100%); }
.viewer-stage .nav-btn {
  position: absolute; top: 50%; transform: translateY(-50%); width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.08); display: grid; place-items: center; cursor: pointer; border: 0; color: #fff;
}
.viewer-stage .nav-btn:hover { background: rgba(255,255,255,.16); }
.viewer-stage .nav-btn.prev { left: 12px; }
.viewer-stage .nav-btn.next { right: 12px; }
.viewer .nofile { text-align: center; display: grid; gap: 12px; place-items: center; color: #8b8b95; }
.viewer .nofile .ficon { width: 72px; height: 72px; border-radius: 20px; }
.viewer .nofile .ficon svg.i { width: 34px; height: 34px; }
.editor {
  width: min(1000px, 100%); height: 100%; display: grid; grid-template-rows: 1fr;
  background: #111114; border: 1px solid #232329; border-radius: 10px; overflow: hidden;
}
.editor textarea {
  width: 100%; height: 100%; resize: none; border: 0; outline: none; padding: 16px 18px;
  background: transparent; color: #ededf0; font: 13px/1.6 var(--mono); tab-size: 4;
}
.spinner {
  width: 26px; height: 26px; border-radius: 50%; border: 2.5px solid rgba(255,255,255,.15);
  border-top-color: #7c83ff; animation: spin .7s linear infinite;
}

/* ------------------------------------------------------------ upload panel */
.uploads {
  position: fixed; right: 20px; bottom: 20px; z-index: 70; width: 380px; max-width: calc(100vw - 24px);
  background: var(--elev); border: 1px solid var(--border); border-radius: 14px; box-shadow: var(--shadow-lg);
  overflow: hidden; animation: rise .2s ease;
}
.up-head { display: flex; align-items: center; gap: 8px; padding: 12px 10px 12px 16px; }
.up-head .grow { min-width: 0; display: grid; }
.up-head b { font-size: 14px; }
.up-head small { color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.up-total { height: 3px; background: var(--active); }
.up-total > div { height: 100%; background: var(--accent); transition: width .3s linear; }
.up-list { max-height: 300px; overflow: auto; border-top: 1px solid var(--border); }
.up-item { display: grid; grid-template-columns: 30px 1fr auto; gap: 10px; align-items: center; padding: 9px 10px 9px 14px; }
.up-item + .up-item { border-top: 1px solid var(--border); }
.up-item .ficon { width: 30px; height: 30px; }
.up-item .txt { min-width: 0; display: grid; gap: 4px; }
.up-item .txt span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; font-weight: 500; }
.up-item .txt small { font-size: 11.5px; color: var(--muted); font-variant-numeric: tabular-nums; }
.up-item .bar { height: 4px; }
.up-item.done small { color: var(--success); }
.up-item.error small { color: var(--danger); }
.up-more { padding: 8px 14px; font-size: 12px; color: var(--muted); border-top: 1px solid var(--border); }

/* ------------------------------------------------------------ toasts */
.toasts { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 95; display: grid; gap: 8px; justify-items: center; pointer-events: none; }
.toast {
  pointer-events: auto; display: flex; align-items: center; gap: 10px; padding: 10px 14px; border-radius: 11px;
  background: #18181b; color: #fafafa; box-shadow: var(--shadow-lg); font-size: 13.5px; max-width: min(520px, 92vw);
  animation: rise .2s ease;
}
:root[data-theme="dark"] .toast { background: #26262c; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .toast { background: #26262c; } }
.toast svg.i { width: 16px; height: 16px; }
.toast.error svg.i { color: #f87171; }
.toast.success svg.i { color: #4ade80; }
.toast button { all: unset; cursor: pointer; font-weight: 600; color: #a5abff; margin-left: 6px; }
.toast.out { animation: fadeout .2s ease forwards; }

/* ------------------------------------------------------------ panels: shares / trash / activity / system */
.table { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.trow {
  display: grid; align-items: center; gap: 12px; min-height: 56px; padding: 8px 12px 8px 16px;
  border-bottom: 1px solid var(--border);
}
.trow:last-child { border-bottom: 0; }
.trow:hover { background: var(--hover); }
.trow .txt { min-width: 0; display: grid; }
.trow .txt span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; }
.trow .txt small { color: var(--muted); font-size: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.trow .acts { display: flex; gap: 4px; justify-content: flex-end; }
.trow.sel { background: var(--accent-soft); }
.shares .trow { grid-template-columns: 32px minmax(0, 1fr) 150px 90px auto; }
.trash .trow { grid-template-columns: 22px 32px minmax(0, 1fr) 100px 140px auto; }
.pill {
  display: inline-flex; align-items: center; height: 22px; padding: 0 8px; border-radius: 20px;
  font-size: 11.5px; font-weight: 600; background: var(--active); color: var(--muted); white-space: nowrap; justify-self: start;
}
.pill.ok { background: color-mix(in srgb, var(--success) 14%, transparent); color: var(--success); }
.pill.bad { background: var(--danger-soft); color: var(--danger); }
.note {
  display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 10px;
  background: var(--hover); color: var(--muted); font-size: 13px; margin-bottom: 14px;
}
.note svg.i { width: 16px; height: 16px; margin-top: 1px; flex: none; }

.timeline { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 6px 0; }
.tl-day { padding: 14px 18px 6px; font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: .02em; }
.tl-item { display: grid; grid-template-columns: 32px 1fr auto; gap: 12px; align-items: center; padding: 8px 18px; }
.tl-item .ficon { width: 30px; height: 30px; border-radius: 50%; }
.tl-item .ficon svg.i { width: 15px; height: 15px; }
.tl-item .txt { min-width: 0; }
.tl-item .txt div { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tl-item .txt b { font-weight: 600; }
.tl-item time { color: var(--faint); font-size: 12px; font-variant-numeric: tabular-nums; }

.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 14px; }
.stat {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 16px 18px;
  display: grid; gap: 10px; align-content: start;
}
.stat-head { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 13px; font-weight: 500; }
.stat-val { font-size: 26px; font-weight: 650; letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.1; }
.stat-val small { font-size: 13px; color: var(--muted); font-weight: 500; letter-spacing: 0; margin-left: 4px; }
.stat-sub { color: var(--muted); font-size: 12.5px; font-variant-numeric: tabular-nums; }
.spark { width: 100%; height: 42px; display: block; }
.spark path.line { fill: none; stroke: var(--accent); stroke-width: 1.8; vector-effect: non-scaling-stroke; }
.spark path.area { fill: var(--accent-soft); stroke: none; }
.speedtest { margin-bottom: 14px; }
.speed-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)) auto; gap: 14px; align-items: end; }
@media (max-width: 800px) { .speed-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } .speed-grid > :last-child { grid-column: 1 / -1; justify-self: stretch !important; } .speed-grid .btn { width: 100%; } .speed-grid .stat-val { font-size: 20px; } }
.addr { display: grid; gap: 6px; }
.addr div { display: flex; align-items: center; gap: 8px; font-size: 13px; }
.addr code { font-family: var(--mono); font-size: 12.5px; }

/* ------------------------------------------------------------ animations */
@keyframes fade { from { opacity: 0; } }
@keyframes fadeout { to { opacity: 0; transform: translateY(6px); } }
@keyframes rise { from { opacity: 0; transform: translateY(8px) scale(.99); } }
@keyframes pop { from { opacity: 0; transform: scale(.96); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shimmer { to { background-position: -200% 0; } }
@keyframes flash { 0%, 40% { background: var(--accent-soft); } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }

/* ------------------------------------------------------------ responsive */
.scrim { display: none; }
@media (max-width: 1000px) {
  .frow { grid-template-columns: 28px minmax(0, 1fr) 90px 40px; }
  .frow .fdate { display: none; }
  .shares .trow { grid-template-columns: 32px minmax(0, 1fr) 90px auto; }
  .shares .trow .c-exp { display: none; }
  .trash .trow { grid-template-columns: 22px 32px minmax(0, 1fr) 90px auto; }
  .trash .trow .c-date { display: none; }
}
@media (max-width: 800px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed; inset: 0 auto 0 0; width: min(280px, 84vw); z-index: 75;
    transform: translateX(-100%); transition: transform .22s ease; box-shadow: var(--shadow-lg);
    padding-top: calc(14px + env(safe-area-inset-top));
  }
  .shell.nav-open .sidebar { transform: none; }
  .shell.nav-open .scrim { display: block; position: fixed; inset: 0; z-index: 74; background: var(--overlay); animation: fade .15s; }
  .topbar { padding: 0 12px; gap: 6px; padding-top: env(safe-area-inset-top); height: calc(56px + env(safe-area-inset-top)); }
  .topbar .menu-btn { display: inline-flex; }
  .topbar > .grow { display: none; }
  .search { flex: 1; width: auto; }
  .toolbar { flex-wrap: nowrap; gap: 6px; }
  .toolbar .icon-sm { font-size: 0; gap: 0; width: 34px; padding: 0; }
  .search .kbd { display: none; }
  .content { padding: 14px 12px 140px; }
  .frow { grid-template-columns: 24px minmax(0, 1fr) 36px; height: 56px; padding: 0 6px 0 10px; }
  .frow .fsize { display: none; }
  .frow .cb, .frow .more { opacity: 1; }
  .fname small.m { display: block; }
  .fgrid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
  .card .cb, .card .more { opacity: 1; }
  .viewer-stage { padding: 0 8px 12px; }
  .viewer-stage .nav-btn { display: none; }
  .uploads { right: 12px; left: 12px; bottom: 12px; width: auto; max-width: none; }
  .shares .trow, .trash .trow { grid-template-columns: 32px minmax(0, 1fr) auto; }
  .trash .trow { grid-template-columns: 22px minmax(0, 1fr) auto; }
  .trash .trow > .ficon, .shares .trow .pill, .trash .trow .c-size { display: none; }
  .hide-sm { display: none !important; }
}
@media (min-width: 801px) { .fname small.m { display: none; } }