:root {
  --bg: #0b1020;
  --bg-soft: #11182b;
  --card: rgba(255,255,255,0.06);
  --card-strong: rgba(255,255,255,0.09);
  --text: #eef4ff;
  --muted: #aab8d6;
  --accent: #53c8ff;
  --accent-2: #6f7dff;
  --border: rgba(255,255,255,0.10);
  --ok: #79e2a0;
  --warn: #ffcf70;
  --bad: #ff8787;
  --shadow: 0 20px 50px rgba(0,0,0,0.35);
  --radius: 20px;
  --container: 1180px;
  --narrow: 820px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background:
    radial-gradient(circle at top left, rgba(83,200,255,0.18), transparent 28%),
    radial-gradient(circle at top right, rgba(111,125,255,0.14), transparent 24%),
    linear-gradient(180deg, #0a1020 0%, #09111d 100%);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a { color: inherit; text-decoration: none; }

.container {
  width: min(100% - 32px, var(--container));
  margin: 0 auto;
}

.container.narrow {
  width: min(100% - 32px, var(--narrow));
}

.hero {
  padding: 80px 0 36px;
}

.hero-simple {
  padding: 120px 0;
}

.hero-badge,
.section-kicker {
  display: inline-block;
  margin-bottom: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(83,200,255,0.10);
  border: 1px solid rgba(83,200,255,0.22);
  color: var(--accent);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.03em;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(28px, 3vw, 42px);
  line-height: 1.08;
  letter-spacing: -0.02em;
}

.hero-lead,
.section-subtitle,
.form-status,
.preview-note {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.hero-actions,
.form-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  border: 1px solid var(--border);
  font-weight: 600;
  cursor: pointer;
  transition: transform .18s ease, opacity .18s ease, border-color .18s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: white;
  border-color: transparent;
}

.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--text);
}

.section {
  padding: 26px 0 36px;
}

.grid {
  display: grid;
  gap: 18px;
}

.grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.preview-card,
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.card {
  padding: 22px;
}

.card h3 {
  margin: 0 0 10px;
  font-size: 20px;
}

.card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.form-card,
.preview-card {
  padding: 26px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
}

.field .meta {
  color: var(--muted);
  font-size: 12px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  border: 1px solid var(--border);
  outline: none;
  background: rgba(255,255,255,0.05);
  color: var(--text);
  padding: 12px 14px;
  font: inherit;
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.preview-values {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 18px;
}

.metric {
  padding: 18px;
  border-radius: 16px;
  background: var(--card-strong);
  border: 1px solid var(--border);
}

.metric-label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.metric-value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metric.low .metric-value { color: var(--ok); }
.metric.medium .metric-value { color: var(--warn); }
.metric.high .metric-value { color: var(--bad); }

.status-box {
  margin-top: 14px;
  color: var(--muted);
  min-height: 22px;
}

.footer-note {
  margin-top: 16px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

@media (max-width: 980px) {
  .grid.two,
  .grid.three,
  .form-grid,
  .preview-values {
    grid-template-columns: 1fr;
  }
}

.engineering-form {
  display: grid;
  gap: 22px;
}

.survey-section {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.28);
}

.field-meta {
  display: grid;
  gap: 4px;
  margin-bottom: 6px;
}

.meta-unit {
  color: var(--muted);
  font-size: 12px;
}

.meta-hint {
  color: #c5d4f3;
  font-size: 13px;
  line-height: 1.4;
}

.meta-example {
  color: var(--accent);
  font-size: 12px;
}

.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.diag-card {
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  padding: 18px;
}

.diag-title {
  font-weight: 700;
  margin-bottom: 10px;
}

.diag-list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
}

.diag-empty {
  list-style: none;
  margin-left: -18px;
  color: #9fe3b5;
}

.custom-fields-list {
  display: grid;
  gap: 16px;
  margin-top: 14px;
}

.custom-field-row {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr 180px;
  gap: 12px;
  align-items: end;
  padding: 16px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}

.custom-remove-wrap {
  align-self: end;
}

@media (max-width: 980px) {
  .diagnostics-grid,
  .custom-field-row {
    grid-template-columns: 1fr;
  }
}

.repeating-group {
  margin-top: 22px;
  padding: 18px;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
}

.repeating-group-head h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.repeating-group-list {
  display: grid;
  gap: 14px;
  margin-top: 14px;
}

.repeating-row {
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.03);
  padding: 16px;
}

.repeating-row-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
  align-items: end;
}

@media (max-width: 1200px) {
  .repeating-row-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 720px) {
  .repeating-row-grid {
    grid-template-columns: 1fr;
  }
}

.status-box b {
  color: #9fe3b5;
}

.result-panel {
  margin-top: 24px;
  padding-top: 10px;
}

.result-panel.hidden {
  display: none;
}

.result-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.result-card {
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  background: rgba(255,255,255,0.04);
  padding: 18px;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-label {
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
}

.result-value {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.25;
  word-break: break-word;
}

.form-grid {
  align-items: start;
}

.field label {
  min-height: 44px;
  display: flex;
  align-items: flex-end;
  line-height: 1.25;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  box-sizing: border-box;
}

@media (max-width: 980px) {
  .result-grid {
    grid-template-columns: 1fr;
  }

  .field label {
    min-height: auto;
  }
}

.report-root.hidden {
  display: none;
}

.result-actions {
  margin-top: 18px;
  display: flex;
  justify-content: flex-start;
}

.result-actions .btn.hidden {
  display: none;
}

.result-actions {
  gap: 12px;
  flex-wrap: wrap;
}