:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --border: #d9dce1;
  --text: #1f2329;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-text: #ffffff;
  --ok: #15803d;
  --fail: #b91c1c;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
}

h1 { font-size: 1.25rem; margin: 0; }
h2 { font-size: 1.05rem; margin: 0 0 .75rem; }

code { background: #eef0f3; padding: .1rem .3rem; border-radius: 4px; }

/* Login */
.login-page {
  display: flex;
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 2rem;
  width: 320px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, .06);
}
.login-card h1 { margin-bottom: 1rem; text-align: center; }
.login-card label { display: block; margin-bottom: .35rem; font-size: .9rem; }
.login-card input {
  width: 100%;
  padding: .55rem .6rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 1rem;
  font-size: 1rem;
}

/* Layout */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: .85rem 1.25rem;
}
main {
  max-width: 860px;
  margin: 1.5rem auto;
  padding: 0 1.25rem;
}
section { margin-bottom: 2rem; }

/* Buttons */
button, .btn {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  border-radius: 6px;
  padding: .5rem .9rem;
  font-size: .95rem;
  cursor: pointer;
}
button:disabled { opacity: .5; cursor: default; }
.btn { background: #e5e7eb; color: var(--text); }
button.link {
  background: none;
  color: var(--accent);
  padding: 0;
  font-size: .9rem;
}

.controls {
  display: flex;
  gap: .6rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: .75rem;
}
.hint { color: var(--muted); font-size: .9rem; }

/* Selection + results */
.selected, .results { list-style: none; padding: 0; margin: .5rem 0; }
.selected li, .results li {
  font-size: .88rem;
  padding: .2rem 0;
  border-bottom: 1px solid #eee;
  word-break: break-all;
}
.results li.ok { color: var(--ok); }
.results li.fail { color: var(--fail); }
.error { color: var(--fail); font-size: .9rem; }

/* Progress */
.progress {
  height: 8px;
  background: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  margin: .5rem 0;
}
.progress-bar {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width .15s ease;
}

/* File table */
table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td {
  text-align: left;
  padding: .45rem .5rem;
  border-bottom: 1px solid var(--border);
}
th { color: var(--muted); font-weight: 600; }
td a { color: var(--accent); text-decoration: none; word-break: break-all; }
td a:hover { text-decoration: underline; }
.count { color: var(--muted); font-weight: 400; font-size: .85rem; }