* { box-sizing: border-box; }

:root {
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1f232d;
  --border: #2a2f3b;
  --text: #e6e8ee;
  --muted: #8b90a0;
  --accent: #7aa2ff;
  --accent-strong: #5b87f5;
  --danger: #ff6b6b;
  --radius: 14px;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(122, 162, 255, .08), transparent 60%),
    var(--bg);
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

.shell { max-width: 760px; margin: 0 auto; padding: 32px 20px 64px; }

.top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--accent), #9d7aff);
  color: #0c0e13; font-size: 15px; font-weight: 700;
}
.brand h1 { margin: 0; font-size: 20px; letter-spacing: .02em; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-bottom: 20px;
}
.card-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 6px; }
.card h2 { margin: 0 0 6px; font-size: 16px; }

.muted { color: var(--muted); }
.error { color: var(--danger); margin: 10px 0 0; }
.hidden { display: none !important; }

/* Login */
.login-card { max-width: 380px; margin: 10vh auto 0; text-align: center; }
.login-card form { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }

input[type="password"], input[type="text"] {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  padding: 10px 12px;
  font: inherit;
  outline: none;
}
input:focus { border-color: var(--accent); }

.primary-btn {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  border: 0; border-radius: 10px;
  color: #0c0e13; font: inherit; font-weight: 600;
  padding: 10px 18px; cursor: pointer;
}
.primary-btn:hover { filter: brightness(1.08); }
.primary-btn:disabled { opacity: .5; cursor: default; }

.ghost-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font: inherit; padding: 7px 14px; cursor: pointer;
}
.ghost-btn:hover { color: var(--text); border-color: var(--muted); }

/* Drop zone */
.drop-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 36px 20px;
  text-align: center;
  transition: border-color .15s, background .15s;
  cursor: pointer;
}
.drop-zone.dragover { border-color: var(--accent); background: rgba(122, 162, 255, .06); }
.drop-zone p { margin: 4px 0; }
.drop-icon { font-size: 28px; margin-bottom: 6px; color: var(--accent); }
.drop-inner .primary-btn { margin-top: 8px; }

/* Upload panel */
.upload-panel { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 18px; }
.field-row { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.field-row label { color: var(--muted); min-width: 70px; }
.field-row input { flex: 1; }
.url-preview code { color: var(--accent); background: var(--surface-2); padding: 2px 7px; border-radius: 6px; }
.panel-actions { display: flex; gap: 10px; margin-top: 14px; }

.progress-wrap { display: flex; align-items: center; gap: 12px; margin-top: 14px; }
.progress-track { flex: 1; height: 8px; border-radius: 99px; background: var(--surface-2); overflow: hidden; }
.progress-bar { height: 100%; width: 0%; border-radius: 99px; background: linear-gradient(90deg, var(--accent), #9d7aff); transition: width .15s; }

/* Site list */
.site-list { list-style: none; margin: 10px 0 0; padding: 0; }
.site-item-wrap { border-top: 1px solid var(--border); }
.site-item-wrap:first-child { border-top: 0; }
.site-item {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 13px 4px;
}
.link-btn { text-decoration: none; }
.site-panel {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  margin: 0 4px 14px;
}
.site-panel .panel-actions { align-items: center; }
.site-panel input[type="file"] { color: var(--muted); flex: 1; font: inherit; }

/* File tree */
.tree { max-height: 340px; overflow-y: auto; }
.tree-row {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 5px 6px;
  border-radius: 8px;
  font-size: 13.5px;
}
.tree-row:hover { background: rgba(255, 255, 255, .03); }
.tree-row:hover .mini-btn { opacity: 1; }
.tree-dir .tree-name { color: var(--muted); font-weight: 600; }
.tree-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tree-name a { color: var(--text); text-decoration: none; }
.tree-name a:hover { color: var(--accent); }
.tree-side { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.tree-size { color: var(--muted); font-size: 12px; }
.mini-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--muted);
  font: inherit; font-size: 12px;
  padding: 2px 9px; cursor: pointer;
  opacity: .55;
}
.mini-btn:hover { color: var(--text); border-color: var(--muted); }
.mini-btn.danger:hover { color: var(--danger); border-color: var(--danger); }
.site-meta { min-width: 0; }
.site-name { font-weight: 600; color: var(--text); text-decoration: none; }
.site-name:hover { color: var(--accent); }
.site-sub { font-size: 13px; color: var(--muted); margin-top: 2px; }
.site-sub .warn { color: #e8b341; }
.site-actions { display: flex; gap: 8px; flex-shrink: 0; }
.site-actions .danger { color: var(--danger); border-color: rgba(255, 107, 107, .35); }
.site-actions .danger:hover { border-color: var(--danger); color: var(--danger); }
.empty { text-align: center; padding: 18px 0 8px; }

@media (max-width: 560px) {
  .site-item { flex-direction: column; align-items: flex-start; }
}