:root {
  --bg: #0c111d;
  --panel: #121a2a;
  --panel-soft: #172235;
  --text: #f7f9fc;
  --muted: #a9b4c7;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #9fd2ff;
  --accent-strong: #5fb3ff;
  --success: #a8f0c6;
  --warning: #ffd99f;
  --danger: #ffb4b4;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(95, 179, 255, 0.18), transparent 34rem),
    radial-gradient(circle at bottom right, rgba(168, 240, 198, 0.10), transparent 30rem),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

button,
input,
select,
textarea {
  font: inherit;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 72px;
}

.hero {
  padding: 24px 0 12px;
}

.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(255, 255, 255, 0.04);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 12px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  margin-top: 18px;
  max-width: 820px;
  font-size: clamp(42px, 8vw, 78px);
  line-height: 0.95;
  letter-spacing: -0.06em;
}

.hero-copy {
  max-width: 780px;
  margin-top: 18px;
  color: var(--muted);
  font-size: 18px;
  line-height: 1.6;
}

.panel {
  margin-top: 24px;
  padding: 24px;
  background: rgba(18, 26, 42, 0.88);
  border: 1px solid var(--line);
  border-radius: 28px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.panel.locked {
  opacity: 0.58;
}

.panel.ready {
  opacity: 1;
}

.step-heading {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.step-heading h2 {
  font-size: 24px;
  letter-spacing: -0.03em;
}

.step-heading p {
  margin-top: 6px;
  color: var(--muted);
  line-height: 1.5;
}

.step-pill {
  flex: 0 0 auto;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(159, 210, 255, 0.12);
  border: 1px solid rgba(159, 210, 255, 0.24);
  color: var(--accent);
  font-weight: 800;
  font-size: 13px;
}

.card-grid {
  display: grid;
  gap: 16px;
}

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

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

.choice-card {
  min-height: 190px;
  width: 100%;
  text-align: left;
  color: var(--text);
  background: linear-gradient(145deg, rgba(255,255,255,0.07), rgba(255,255,255,0.025));
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.choice-card:hover,
.choice-card:focus-visible {
  transform: translateY(-3px);
  border-color: rgba(159, 210, 255, 0.48);
  outline: none;
}

.choice-card.selected {
  border-color: var(--accent-strong);
  background: linear-gradient(145deg, rgba(95, 179, 255, 0.20), rgba(255,255,255,0.04));
}

.choice-card strong,
.choice-card span {
  display: block;
}

.card-label {
  color: var(--accent);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 18px;
}

.choice-card strong {
  font-size: 22px;
  letter-spacing: -0.04em;
  margin-bottom: 10px;
}

.choice-card span:last-child {
  color: var(--muted);
  line-height: 1.5;
}

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

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

.input-group {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-weight: 700;
}

.input-group input,
.input-group select,
.input-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-radius: 16px;
  padding: 13px 14px;
}

.input-group select option {
  color: #111827;
}

.input-group textarea {
  resize: vertical;
  min-height: 110px;
}

.input-group small {
  color: var(--muted);
  font-weight: 500;
  line-height: 1.4;
}

.notes-group {
  margin-top: 16px;
}

.toggle-row,
.locked-note,
.summary-box,
.result,
.connection-status,
.active-project,
.helper-note {
  margin-top: 16px;
  padding: 16px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
  line-height: 1.5;
}

.toggle-row {
  display: flex;
  gap: 12px;
  align-items: center;
  color: var(--text);
}

.toggle-row input {
  width: 20px;
  height: 20px;
}

.locked-note,
.connection-status.connected,
.result.success,
.active-project.ready {
  color: var(--success);
  border-color: rgba(168, 240, 198, 0.24);
  background: rgba(168, 240, 198, 0.08);
}

.connection-status.warning,
.result.warning {
  color: var(--warning);
  border-color: rgba(255, 217, 159, 0.28);
  background: rgba(255, 217, 159, 0.08);
}

.summary-box {
  color: var(--muted);
}

.summary-box strong,
.active-project strong {
  color: var(--text);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.compact-actions {
  margin-top: 14px;
}

.top-gap {
  margin-top: 16px;
}

button.primary,
button.secondary {
  border: 0;
  border-radius: 999px;
  padding: 13px 20px;
  cursor: pointer;
  font-weight: 800;
}

button.primary {
  color: #07111d;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

button.secondary {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid var(--line);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.65;
}

.result {
  display: none;
  white-space: pre-wrap;
}

.result.show {
  display: block;
}

.hidden {
  display: none !important;
}

.connection-details {
  margin-top: 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.035);
}

.connection-details summary {
  cursor: pointer;
  color: var(--accent);
  font-weight: 800;
}

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

.subsection-title {
  margin: 22px 0 12px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

@media (max-width: 820px) {
  .card-grid.two,
  .card-grid.three,
  .form-grid,
  .form-grid.three-fields,
  .connection-grid {
    grid-template-columns: 1fr;
  }

  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 24px;
  }

  .panel {
    padding: 18px;
    border-radius: 22px;
  }
}