:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --fg: #1d2939;
  --muted: #667085;
  --accent: #eaecf0;
  --primary: #1f3864;
  --primary-hover: #16284a;
  --error-bg: #fef3f2;
  --error-fg: #b42318;
  --border: #d0d5dd;
}

* { box-sizing: border-box; }

body {
  font-family: Calibri, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  background: var(--bg);
  color: var(--fg);
  margin: 0;
  line-height: 1.5;
}

main {
  max-width: 740px;
  margin: 24px auto;
  padding: 0 16px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  background: var(--card);
  border-bottom: 1px solid var(--border);
}
.topbar h1 { font-size: 20px; margin: 0; color: var(--primary); }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 7px;
  display: block;
}

.login-icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  display: block;
  margin: 0 auto 16px;
  box-shadow: 0 4px 16px rgba(31, 56, 100, 0.15);
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px 24px;
  margin-bottom: 16px;
}
.card h2 {
  font-size: 16px;
  margin: 0 0 12px;
  color: var(--fg);
}

.muted { color: var(--muted); }
.hidden { display: none !important; }

label.radio, label.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  cursor: pointer;
}
label.radio input, label.checkbox input { margin-top: 4px; }
label.radio span, label.checkbox span { flex: 1; }

input[type="file"] {
  display: block;
  width: 100%;
  padding: 10px;
  border: 1px dashed var(--border);
  border-radius: 6px;
  background: var(--bg);
  font: inherit;
}

input[type="password"] {
  width: 100%;
  padding: 10px 12px;
  font: inherit;
  border: 1px solid var(--border);
  border-radius: 6px;
  margin-bottom: 12px;
}

button.primary, a.button-link {
  display: inline-block;
  background: var(--primary);
  color: white;
  border: 0;
  border-radius: 6px;
  padding: 10px 18px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
}
button.primary:hover, a.button-link:hover { background: var(--primary-hover); }
button.primary:disabled { background: var(--muted); cursor: progress; }

button.secondary {
  display: inline-block;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 16px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
}
button.secondary:hover { background: var(--bg); border-color: var(--muted); }
button.secondary:disabled { color: var(--muted); cursor: progress; }

.progress-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.progress-actions .small { margin: 0; }

button.link {
  background: none; border: 0; color: var(--muted); cursor: pointer;
  font: inherit; padding: 0; text-decoration: underline;
}

.logout-form { margin: 0; }

.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--accent);
  border-radius: 999px;
  overflow: hidden;
  margin-top: 12px;
}
.progress-bar-fill {
  width: 0%;
  height: 100%;
  background: var(--primary);
  transition: width 120ms linear;
}

.progress-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
  font-size: 14px;
  color: var(--muted);
}
.progress-row #upload-pct,
.progress-row #convert-pct {
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  color: var(--fg);
}

dl.counts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin: 16px 0 8px;
  padding: 12px;
  background: var(--bg);
  border-radius: 6px;
}
dl.counts > div { margin: 0; }
dl.counts dt {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
dl.counts dd {
  font-size: 20px;
  font-weight: 600;
  margin: 2px 0 0;
  font-variant-numeric: tabular-nums;
}

.small { font-size: 13px; }

.error-card { background: var(--error-bg); border-color: var(--error-fg); }
.error-card h2, .error-card p { color: var(--error-fg); }
p.error { color: var(--error-fg); margin: 0 0 12px; }

details summary { cursor: pointer; color: var(--muted); padding: 8px 0; }
details ul { margin: 8px 0 0 18px; padding: 0; color: var(--fg); }

.login-body {
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 32px;
  width: min(380px, 92vw);
}
.login-card h1 { font-size: 22px; margin: 0 0 4px; color: var(--primary); text-align: center; }
.login-card p { margin: 0 0 20px; text-align: center; }
.login-card label { display: block; font-size: 14px; color: var(--muted); margin-bottom: 6px; }
.login-card button { width: 100%; }