:root {
  color-scheme: light dark;
  --bg: #0b1020;
  --bg-soft: #101935;
  --card: #151f3d;
  --card-muted: #1b2850;
  --text: #eaf0ff;
  --text-muted: #9eb2de;
  --accent: #63b3ff;
  --accent-strong: #3a8bff;
  --ok: #40c183;
  --warn: #f6c24e;
  --border: #2a3c70;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    Segoe UI,
    Roboto,
    sans-serif;
  background: radial-gradient(circle at top, #14295e 0%, var(--bg) 45%);
  color: var(--text);
}

.app-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.hero {
  margin-bottom: 1.25rem;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--accent);
  font-size: 0.8rem;
  margin: 0;
}

h1 {
  margin: 0.7rem 0 0.4rem;
  font-size: clamp(1.5rem, 2.7vw, 2.4rem);
}

.subtitle {
  margin: 0;
  color: var(--text-muted);
}

.panel {
  border: 1px solid var(--border);
  background: linear-gradient(170deg, var(--bg-soft), var(--bg));
  border-radius: 16px;
  overflow: hidden;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
}

.tab-btn[aria-selected="true"] {
  border-color: var(--accent);
  background: linear-gradient(180deg, #1d3e84, #173470);
}

.tab-content {
  padding: 1rem;
}

.card {
  background: linear-gradient(180deg, var(--card), var(--card-muted));
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1rem;
}

.form-meta h2 {
  margin: 0;
}

.form-note {
  margin: 0.45rem 0 0;
  color: var(--text-muted);
}

.controls {
  margin: 1rem 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.progress-wrap {
  margin: 0 0 1rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0d1a37;
  padding: 0.6rem;
}

.progress-wrap.hidden {
  display: none;
}

.progress-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.progress-track {
  width: 100%;
  height: 10px;
  background: #0a1430;
  border: 1px solid #253a72;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #2e76ff, #60b7ff);
  transition: width 0.2s ease;
}

button {
  appearance: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.6rem 0.9rem;
  color: var(--text);
  background: #1a2f5f;
  cursor: pointer;
  font-weight: 600;
}

button.primary {
  border-color: var(--accent-strong);
  background: linear-gradient(180deg, #2d6ee7, #245cca);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

.steps {
  display: grid;
  gap: 0.9rem;
}

.step {
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.step summary {
  list-style: none;
  cursor: pointer;
  padding: 0.7rem 0.9rem;
  background: #162957;
  font-weight: 700;
}

.step summary::-webkit-details-marker {
  display: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 0.8rem;
  padding: 0.9rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.field.hidden {
  display: none;
}

label {
  font-size: 0.9rem;
  color: #dce6ff;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #0f1d40;
  color: var(--text);
  padding: 0.55rem 0.6rem;
}

textarea {
  min-height: 82px;
  resize: vertical;
}

.boolean-wrap {
  flex-direction: row;
  align-items: center;
  gap: 0.55rem;
}

.boolean-wrap input {
  width: auto;
}

.array-block {
  grid-column: 1 / -1;
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 0.75rem;
}

.array-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(120px, 1fr)) auto;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.status {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f1f42;
  white-space: pre-wrap;
  word-break: break-word;
}

.status.ok {
  border-color: #1e7f56;
  color: #97f2c5;
}

.status.warn {
  border-color: #8a6a1f;
  color: #f7db8f;
}

.status.error {
  border-color: #8e3350;
  color: #ffb7cd;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 40;
}

.modal.open {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 8, 18, 0.72);
}

.modal-panel {
  position: relative;
  margin: 2rem auto;
  width: min(1100px, calc(100vw - 2rem));
  height: calc(100vh - 4rem);
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #101d40;
  display: flex;
  flex-direction: column;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
}

.modal-header h3 {
  margin: 0;
}

.modal-actions {
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
}

.modal-body {
  flex: 1;
  min-height: 0;
  padding: 0.8rem;
}

#pdf-preview-frame {
  width: 100%;
  height: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0f1935;
}