:root {
  /* JDI main brand */
  --jdi-black: #000000;
  --jdi-red: #cc3533;
  --jdi-red-hover: #b02d2b;
  --jdi-red-soft: rgba(204, 53, 51, 0.08);
  --jdi-red-muted: rgba(204, 53, 51, 0.15);

  /* JDI sub-brand palette */
  --jdi-blue: #0075c0;
  --jdi-blue-soft: rgba(0, 117, 192, 0.08);
  --jdi-orange: #ff9300;
  --jdi-yellow: #ffba00;
  --jdi-green: #8ec711;
  --jdi-green-soft: rgba(142, 199, 17, 0.12);

  /* UI tokens */
  --bg: #ffffff;
  --bg-subtle: #f5f5f5;
  --surface: #ffffff;
  --surface-muted: #fafafa;
  --border: #e0e0e0;
  --border-strong: #cccccc;
  --text: #000000;
  --text-muted: #444444;
  --text-light: #666666;

  --radius: 4px;
  --radius-lg: 8px;
  --shadow: 0 2px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08);
  --font: "Aileron", "Helvetica Neue", Arial, sans-serif;
  --max-width: 760px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font);
  font-weight: 400;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Brand bar ── */
.brand-bar {
  background: var(--bg);
  border-bottom: 3px solid var(--jdi-red);
}

.brand-bar-inner {
  max-width: calc(var(--max-width) + 2.5rem);
  margin: 0 auto;
  padding: 0.625rem 1.25rem;
  min-height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-logo {
  display: block;
  flex-shrink: 0;
  line-height: 0;
}

.brand-logo-img {
  display: block;
  height: 2.75rem;
  width: auto;
  object-fit: contain;
  object-position: left center;
}

.brand-tagline {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--jdi-red);
}

/* ── Layout ── */
.app-shell {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

header.app-header {
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

header.app-header::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 4rem;
  height: 3px;
  background: var(--jdi-red);
}

header.app-header .badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--jdi-red);
  margin-bottom: 0.85rem;
}

header.app-header h1 {
  font-size: clamp(1.85rem, 5vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.85rem;
  color: var(--jdi-black);
}

header.app-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
  font-weight: 400;
  max-width: 560px;
  line-height: 1.6;
}

/* ── Progress ── */
.progress-track {
  margin-bottom: 2rem;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 0.02em;
}

.progress-meta-right {
  font-weight: 400;
}

.progress-bar {
  height: 3px;
  background: var(--border);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--jdi-red);
  transition: width 0.4s ease;
}

/* ── Cards ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.category-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--jdi-red);
  margin-bottom: 1.75rem;
}

.question-block {
  margin-bottom: 2rem;
}

.question-block:last-child {
  margin-bottom: 0;
}

.question-number {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-light);
  margin-bottom: 0.4rem;
}

.question-text {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1rem;
  line-height: 1.45;
  color: var(--jdi-black);
}

/* ── Options ── */
.options-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.option-btn {
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  width: 100%;
  text-align: left;
  padding: 0.95rem 1.1rem;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 400;
  line-height: 1.45;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.option-btn:hover {
  border-color: var(--jdi-red);
  background: var(--jdi-red-soft);
}

.option-btn.selected {
  border-color: var(--jdi-red);
  background: var(--jdi-red-soft);
  box-shadow: inset 3px 0 0 var(--jdi-red);
}

.option-letter {
  flex-shrink: 0;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 800;
  border-radius: var(--radius);
  background: var(--jdi-black);
  color: #ffffff;
  transition: background 0.15s;
}

.option-btn.selected .option-letter {
  background: var(--jdi-red);
}

/* ── Buttons ── */
.nav-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  gap: 1rem;
}

.results-actions {
  margin-top: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.5rem;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, transform 0.1s;
  text-decoration: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.btn-secondary {
  background: transparent;
  color: var(--jdi-black);
  border: 2px solid var(--jdi-black);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--jdi-black);
  color: #ffffff;
}

.btn-primary {
  background: var(--jdi-red);
  color: #ffffff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--jdi-red-hover);
}

/* ── Intro ── */
.intro-card {
  text-align: center;
}

.intro-card h2 {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
  color: var(--jdi-black);
}

.intro-card p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.intro-details {
  text-align: left;
  background: var(--bg-subtle);
  border-left: 3px solid var(--jdi-red);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.75rem;
}

.intro-details li {
  list-style: none;
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.intro-details li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--jdi-red);
  font-weight: 700;
}

/* ── Forms ── */
.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 0.45rem;
  color: var(--text-light);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--surface-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.15s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--jdi-red);
  background: #ffffff;
}

.form-group textarea {
  resize: vertical;
  min-height: 88px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 520px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ── Results ── */
.results-hero {
  text-align: left;
  padding: 0 0 2rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.results-hero::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 4rem;
  height: 3px;
  background: var(--jdi-red);
}

.results-hero--agility::after {
  background: var(--jdi-green);
}

.results-hero--caution::after {
  background: var(--jdi-orange);
}

.results-hero--discovery::after {
  background: var(--jdi-blue);
}

.results-headline {
  font-size: clamp(1.6rem, 4vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--jdi-black);
  margin-bottom: 0.85rem;
  line-height: 1.15;
}

.results-subline {
  font-size: 0.98rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.65;
}

.compliance-callout {
  background: var(--jdi-blue-soft);
  border: 1px solid rgba(0, 117, 192, 0.2);
  border-left: 4px solid var(--jdi-blue);
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.75rem;
  margin-bottom: 2rem;
}

.compliance-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--jdi-blue);
  margin-bottom: 0.65rem;
}

.tracks-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.parallel-track {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  background: var(--surface-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.35rem;
  transition: box-shadow 0.15s;
}

.parallel-track:hover {
  box-shadow: var(--shadow);
}

.parallel-track.track-discovery {
  border-left: 4px solid var(--jdi-orange);
}

.parallel-track:not(.track-discovery):nth-child(3n + 1) {
  border-left: 4px solid var(--jdi-red);
}

.parallel-track:not(.track-discovery):nth-child(3n + 2) {
  border-left: 4px solid var(--jdi-blue);
}

.parallel-track:not(.track-discovery):nth-child(3n) {
  border-left: 4px solid var(--jdi-green);
}

.track-number {
  flex-shrink: 0;
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  border-radius: var(--radius);
  background: var(--jdi-black);
  color: #ffffff;
}

.track-label {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--jdi-black);
  letter-spacing: -0.01em;
}

.track-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.35;
  color: var(--jdi-black);
}

.track-body,
.track-action {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.track-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin: 1.1rem 0 0.5rem;
}

.track-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.track-list li {
  font-size: 0.88rem;
  color: var(--text-muted);
  padding-left: 1.1rem;
  position: relative;
  line-height: 1.5;
}

.track-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--jdi-red);
  font-weight: 700;
  font-size: 0.8rem;
}

.section-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-light);
  margin-bottom: 0.85rem;
}

/* ── CTA block ── */
.cta-block {
  text-align: center;
  padding: 2rem 1.75rem;
  border-radius: var(--radius-lg);
  margin-top: 0.5rem;
  background: var(--jdi-black);
  color: #ffffff;
}

.cta-block.positive h3,
.cta-block h3 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  margin-bottom: 0.65rem;
  color: #ffffff;
}

.cta-block p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
  line-height: 1.6;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-block .btn-primary {
  min-width: 240px;
  background: var(--jdi-red);
}

.cta-block .btn-primary:hover {
  background: var(--jdi-red-hover);
}

/* ── Footer ── */
footer.app-footer {
  text-align: center;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-tagline {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--jdi-red);
  margin-bottom: 0.5rem;
}

footer.app-footer p:last-child {
  font-size: 0.8rem;
  color: var(--text-light);
}

/* ── Misc ── */
.hidden {
  display: none !important;
}

.submit-status {
  text-align: center;
  font-size: 0.85rem;
  margin-top: 1rem;
  color: var(--text-light);
}

.submit-status.success {
  color: var(--jdi-green);
  font-weight: 600;
}

.submit-status.error {
  color: var(--jdi-red);
  font-weight: 600;
}

@media (max-width: 520px) {
  .brand-bar-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
    min-height: 0;
    padding: 0.5rem 1rem;
  }

  .brand-logo-img {
    height: 2.25rem;
  }

  .card {
    padding: 1.35rem;
  }

  .nav-row {
    flex-direction: column-reverse;
  }

  .nav-row .btn {
    width: 100%;
  }
}