:root {
  --bg: #0e1116;
  --bg-soft: #151a22;
  --card: #191f29;
  --border: #262e3b;
  --text: #e7ecf3;
  --muted: #8b95a5;
  --accent: #6366f1;
  --accent-2: #8b5cf6;
  --ok: #34d399;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  min-height: 100vh;
  background:
    radial-gradient(60% 45% at 50% -10%, rgba(99, 102, 241, 0.16), transparent 70%),
    var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.55;
}

.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 48px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* header */
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 4px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 20px;
}

.brand svg { color: var(--accent); }

nav { display: flex; gap: 8px; }

/* cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 26px 24px;
}

h1 { margin: 0 0 6px; font-size: 24px; letter-spacing: -0.02em; }
h2 { margin: 0; font-size: 18px; }
.muted { color: var(--muted); }
.hidden { display: none !important; }

/* buttons */
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  transition: border-color 0.15s, background 0.15s, transform 0.05s;
}

.btn:hover { border-color: var(--accent); }
.btn:active { transform: translateY(1px); }

.btn.primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border: none;
  color: #fff;
}

.btn.primary:hover { filter: brightness(1.08); }

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

.btn:disabled { opacity: 0.55; cursor: not-allowed; }

/* forms */
.form { display: flex; flex-direction: column; gap: 18px; margin-top: 20px; }

.form label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted);
}

input[type="text"],
input[type="password"],
select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 11px 13px;
  font-size: 15px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18);
}

.form select { appearance: auto; }

/* checkboxes */
.perms {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px 10px;
  margin: 0;
}

.perms legend {
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
  padding: 0 6px;
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
}

.check input {
  width: 17px;
  height: 17px;
  margin: 2px 0 0;
  accent-color: var(--accent);
}

.check small { display: block; font-size: 12px; font-weight: 400; }

/* badges */
.badges { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 4px; }

.badge {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.badge.ok { color: var(--ok); border-color: rgba(52, 211, 153, 0.4); }
.badge.warn { color: #fbbf24; border-color: rgba(251, 191, 36, 0.4); }
.badge.accent { color: var(--accent-2); border-color: rgba(139, 92, 246, 0.4); }

/* result / link row */
.result { margin-top: 22px; display: flex; flex-direction: column; gap: 10px; }
.result .muted { margin: 0; }
.linkrow { display: flex; gap: 8px; }
.linkrow input { flex: 1; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }

.error {
  color: var(--danger);
  background: rgba(248, 113, 113, 0.08);
  border: 1px solid rgba(248, 113, 113, 0.35);
  border-radius: 10px;
  padding: 10px 14px;
  margin: 16px 0 0;
  font-size: 14px;
}

/* dropzone */
#drop { padding-top: 20px; }

.dropzone {
  display: block;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 44px 20px;
  text-align: center;
  cursor: pointer;
  color: var(--muted);
  transition: border-color 0.15s, background 0.15s;
  outline: none;
}

.dropzone:hover, .dropzone.dragover, .dropzone:focus-visible {
  border-color: var(--accent);
  background: rgba(99, 102, 241, 0.07);
}

.dropzone svg { color: var(--accent); margin-bottom: 6px; }
.dropzone p { margin: 4px 0; }
.dropzone strong { color: var(--text); }

.picker-btn { margin: 10px 0 2px; pointer-events: none; }

.dropzone input[type="file"] {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  border: 0;
}

/* upload rows */
.uploads { display: flex; flex-direction: column; gap: 10px; margin-top: 18px; }

.upload-row {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 14px;
}

.upload-row .u-head { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.upload-row .u-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.upload-row .u-status { color: var(--muted); white-space: nowrap; }
.upload-row .u-status.done { color: var(--ok); }
.upload-row .u-status.fail { color: var(--danger); }

.bar {
  height: 6px;
  border-radius: 999px;
  background: var(--bg);
  overflow: hidden;
}

.bar > div {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.15s;
}

.bar.fail > div { background: var(--danger); }

/* file list */
.fhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.fhead-actions { display: flex; gap: 8px; }

.count { font-size: 14px; font-weight: 500; }

.filelist, .sharelist {
  list-style: none;
  margin: 0;
  padding: 0;
}

.filelist li, .sharelist li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 6px;
  border-top: 1px solid var(--border);
}

.filelist li:first-child, .sharelist li:first-child { border-top: none; }

.f-icon { flex: none; color: var(--accent-2); opacity: 0.85; }
.f-meta { flex: 1; min-width: 0; }
.f-name { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.f-sub { font-size: 12px; color: var(--muted); }
.f-actions { flex: none; display: flex; gap: 8px; }

/* manage list */
.sharelist li { align-items: flex-start; }
.s-name { font-weight: 700; margin-bottom: 2px; }
.s-url { font-family: ui-monospace, monospace; font-size: 12px; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.s-meta { font-size: 12px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px; margin-top: 4px; }

/* user chip + auth pages */
.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
}

.user-chip .badge { margin: 0; }

.wrap.auth {
  max-width: 460px;
  margin: 8vh auto 0;
}

.user-form h3 { margin: 0 0 4px; font-size: 15px; }
.user-form-row { display: flex; gap: 8px; flex-wrap: wrap; }
.user-form-row input[type="text"] { flex: 2; min-width: 150px; }
.user-form-row input[type="password"] { flex: 3; min-width: 180px; }
.user-form-row select { flex: 1; min-width: 90px; }

/* collapsible card */
.collapse-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  text-align: left;
}

.collapse-title { font-size: 20px; font-weight: 700; letter-spacing: -0.02em; }

.collapse-head .chevron {
  color: var(--muted);
  transition: transform 0.15s ease;
}

.collapse-head.open .chevron { transform: rotate(180deg); }

.collapse-body { padding-top: 16px; }

.foot { text-align: center; font-size: 13px; }

@media (max-width: 560px) {
  .fhead-actions { width: 100%; }
  .fhead-actions .btn { flex: 1; }
}