:root {
  color-scheme: dark;
  --bg: #0e0f12;
  --panel: #16181d;
  --text: #eef0f3;
  --muted: #9aa1ad;
  --accent: #6ea8fe;
  --error: #ff6b6b;
  --border: #262932;
}

* { box-sizing: border-box; }

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

.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  width: 100%;
  max-width: 340px;
}

.login-box h1 {
  margin: 0 0 1.5rem;
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  text-align: center;
}

.login-box label {
  display: block;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.login-box input {
  display: block;
  width: 100%;
  margin-top: 0.35rem;
  padding: 0.6rem 0.7rem;
  background: #0e0f12;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 1rem;
}

.login-box button {
  width: 100%;
  padding: 0.65rem;
  margin-top: 0.5rem;
  background: var(--accent);
  color: #0e0f12;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
}

.error {
  color: var(--error);
  font-size: 0.85rem;
  margin-bottom: 1rem;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.topbar .brand {
  font-weight: 700;
  letter-spacing: 0.05em;
}

.topbar a {
  color: var(--muted);
  text-decoration: none;
}

.library {
  padding: 1.5rem;
  max-width: 900px;
  margin: 0 auto;
}

.up {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--accent);
  text-decoration: none;
}

.file-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.file-list li {
  border-bottom: 1px solid var(--border);
  padding: 0.6rem 0;
}

.dir {
  color: var(--text);
  text-decoration: none;
}

.file-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.file-actions a {
  margin-left: 0.75rem;
  color: var(--accent);
  text-decoration: none;
  font-size: 0.9rem;
}

.empty {
  color: var(--muted);
}