:root {
  /* Light, neutral gray theme */
  --bg: #f3f4f6; /* page background */
  --panel: #ffffff; /* panels/cards */
  --line: #e5e7eb; /* subtle borders */
  --muted: #6b7280; /* secondary text */
  --text: #1f2937; /* primary text */
  --accent: #2563eb; /* links/buttons */
}

* {
  box-sizing: border-box;
}
html,
body {
  max-height: 100%;
}

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

/* Header */
header {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}
.path {
  opacity: 0.75;
}
.badge {
  background: #eef2ff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.85rem;
  color: #1e3a8a;
}

/* Main layout */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

.btn {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #eef2ff;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

/* Login panel (used by login.html too) */
.panel {
  max-width: 520px;
  margin: 12vh auto;
  padding: 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}
label {
  display: block;
  margin: 12px 0 6px;
  color: var(--muted);
}
input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
}
button {
  margin-top: 16px;
  width: 100%;
  padding: 10px;
  border: 0;
  border-radius: 8px;
  background: #4c8bf5;
  color: #fff;
  font-weight: 600;
}
.err {
  color: #b91c1c;
  margin-top: 10px;
  min-height: 1.2em;
}

/* Minimalist file list grid */
.grid {
  display: grid;
  grid-template-columns: 4fr 1fr; /* name | size */
  gap: 12px;
  align-items: center;
}
.header {
  padding: 10px 12px;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
}
.size-col {
  text-align: right;
}

.list {
  margin-top: 6px;
  border-top: 1px solid var(--line);
}
.row {
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}
.row:hover {
  background: #fafafa;
}

.name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.size {
  text-align: right;
  color: var(--muted);
}

.entry.dir::before {
  content: "📁 ";
  opacity: 0.9;
}
.entry.file::before {
  content: "📄 ";
  opacity: 0.9;
}