:root {
  --ink: #16202b;
  --muted: #607080;
  --line: #d9e1ea;
  --line-strong: #c2ceda;
  --canvas: #f5f7fa;
  --card: #ffffff;
  --accent: #0b63b6;
  --accent-dark: #084b8b;
  --accent-soft: #eaf3fc;
  --danger: #b42318;
  --danger-soft: #fff1ef;
  --success: #217a46;
  --success-soft: #eefaf2;
  --warning: #8a5b00;
  --warning-soft: #fff8e6;
  --shadow: 0 18px 50px rgba(20, 38, 58, 0.08);
  --radius: 16px;
}

* { box-sizing: border-box; }

html {
  background: var(--canvas);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 10% 0%, rgba(11, 99, 182, 0.10), transparent 28rem),
    radial-gradient(circle at 100% 5%, rgba(80, 150, 215, 0.09), transparent 24rem),
    var(--canvas);
}

code {
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.88em;
  background: #edf2f7;
  border: 1px solid #e0e8f0;
  border-radius: 5px;
  padding: 0.08em 0.32em;
}

.page-shell {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
  padding: 32px 0 48px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 54px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 20px;
  box-shadow: 0 8px 18px rgba(11, 99, 182, 0.24);
}

.brand-name {
  font-size: 18px;
  font-weight: 750;
  letter-spacing: -0.02em;
}

.brand-subtitle {
  color: var(--muted);
  font-size: 12.5px;
}

.header-link {
  color: var(--muted);
  font-size: 12px;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 11px;
  background: rgba(255, 255, 255, 0.65);
}

.header-link:hover { color: var(--accent); }

.hero {
  max-width: 760px;
  margin-bottom: 28px;
}

.hero h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 5vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.hero p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  max-width: 700px;
}

.card {
  background: var(--card);
  border: 1px solid rgba(194, 206, 218, 0.75);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}

form.card {
  display: grid;
  gap: 22px;
}

.field {
  display: grid;
  gap: 7px;
}

.field > label {
  font-weight: 650;
  font-size: 14px;
}

.optional {
  color: var(--muted);
  font-weight: 450;
  font-size: 12px;
}

input[type="text"],
input[type="url"],
input[type="password"],
input[type="number"],
input[type="search"],
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: #fbfcfe;
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  padding: 12px 13px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease, background 120ms ease;
}

select { cursor: pointer; }

input:disabled,
select:disabled {
  background: #f1f4f7;
  color: var(--muted);
  cursor: not-allowed;
}

input:focus {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(11, 99, 182, 0.12);
}

input::placeholder { color: #93a1b0; }

.hint {
  margin: 0;
  color: var(--muted);
  font-size: 12.5px;
}

.hint.error { color: var(--danger); }

.max-pages-field {
  margin-top: 18px;
  max-width: 240px;
}

.config-notice {
  margin: 0;
  border: 1px solid #f0c7c2;
  border-radius: 12px;
  background: var(--danger-soft);
  color: #7b1c14;
  padding: 12px 14px;
  font-size: 13.5px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid transparent;
  border-radius: 10px;
  font: inherit;
  font-size: 14px;
  font-weight: 650;
  padding: 11px 17px;
  cursor: pointer;
  text-decoration: none;
  transition: background 120ms ease, border-color 120ms ease, transform 120ms ease;
  white-space: nowrap;
}

.button:active { transform: translateY(1px); }

.button-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 8px 20px rgba(11, 99, 182, 0.18);
}

.button-primary:hover { background: var(--accent-dark); }

.button-primary:disabled {
  background: #9db8d2;
  cursor: not-allowed;
  box-shadow: none;
}

.button-quiet {
  background: #f2f6fa;
  border-color: var(--line);
  color: #405263;
}

.button-quiet:hover { border-color: var(--line-strong); background: #eaf1f8; }

.advanced {
  border-top: 1px solid var(--line);
  padding-top: 18px;
}

.advanced summary {
  cursor: pointer;
  color: var(--muted);
  font-size: 13.5px;
  font-weight: 650;
  user-select: none;
}

.advanced summary:hover { color: var(--accent); }

.advanced-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 18px;
}

.checks {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.check {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #334556;
  font-size: 14px;
}

.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.actions {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-top: 4px;
}

.button-primary { min-width: 130px; }

.actions-note {
  color: var(--muted);
  font-size: 12.5px;
}

.status-card {
  margin-top: 24px;
}

.status-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.status-eyebrow {
  color: var(--accent);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 3px;
}

.status-heading h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: -0.02em;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: #edf2f7;
  color: #526476;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 5px 10px;
}

.status-card[data-status="running"] .badge {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.status-card[data-status="done"] .badge {
  background: var(--success-soft);
  color: var(--success);
}

.status-card[data-status="error"] .badge {
  background: var(--danger-soft);
  color: var(--danger);
}

.status-message {
  margin: 14px 0 16px;
  color: #405263;
}

.progress {
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #e9eef4;
}

.progress-fill {
  height: 100%;
  width: 0;
  border-radius: inherit;
  background: linear-gradient(90deg, #0b63b6, #4b9fe0);
  transition: width 350ms ease;
}

.status-pages {
  min-height: 18px;
  margin-top: 8px;
  color: var(--muted);
  font-size: 12.5px;
}

.error-box {
  margin-top: 18px;
  border: 1px solid #f0c7c2;
  border-radius: 12px;
  background: var(--danger-soft);
  color: #7b1c14;
  padding: 14px 16px;
}

.error-box strong { font-size: 13.5px; }
.error-box p { margin: 5px 0 0; font-size: 14px; }

.result-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 18px;
  border: 1px solid #c5e7d3;
  border-radius: 12px;
  background: var(--success-soft);
  padding: 16px;
}

.result-title {
  color: #175c36;
  font-weight: 700;
}

.result-meta {
  margin-top: 2px;
  color: #3d6b52;
  font-size: 12.5px;
}

.warnings {
  margin-top: 16px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.warnings summary {
  color: var(--warning);
  cursor: pointer;
  font-size: 13px;
  font-weight: 650;
}

.warnings ul {
  margin: 10px 0 0;
  padding-left: 20px;
  color: #5b5140;
  font-size: 13px;
}

.warnings li { margin: 4px 0; overflow-wrap: anywhere; }

.site-footer {
  margin-top: 28px;
  color: #7b8896;
  font-size: 12px;
  text-align: center;
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 24px, 920px);
    padding-top: 20px;
  }

  .site-header { margin-bottom: 36px; }

  .card { padding: 20px; }

  .advanced-grid { grid-template-columns: 1fr; }

  .actions {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .result-box {
    align-items: flex-start;
    flex-direction: column;
  }
}