:root {
  --navy: #160e40;
  --blue: #00a6ff;
  --magenta: #ed0086;
  --yellow: #ffb200;

  --bg: #ffffff;
  --tint-blue: #eef7ff;
  --tint-pink: #fff0f7;
  --tint-yellow: #fff8e9;
  --border: #e6e6f0;
  --border-strong: #d3d3e2;

  --text: #160e40;
  --text-muted: #63607e;
  --text-soft: #8a87a3;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: "Figtree", "Nunito", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  padding: 18px 40px;
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}

.topbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -3px;
  height: 3px;
  background: linear-gradient(90deg, var(--yellow), var(--magenta) 38%, var(--blue) 76%, var(--blue));
}

.brand-logo {
  height: 34px;
  width: auto;
  display: block;
}

.collab {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
  font-weight: 600;
}

.collab strong { color: var(--text); font-weight: 700; }

.hero {
  padding: 76px 40px;
  max-width: 900px;
  margin: 0 auto;
}

.band { padding: 0 40px; }

.band > .hero { padding-left: 0; padding-right: 0; }

.band-blue { background: var(--tint-blue); }
.band-pink { background: var(--tint-pink); }
.band-yellow { background: var(--tint-yellow); }

.hero-dark {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: #fff;
  max-width: none;
  padding: 88px 40px 96px;
}

.hero-dark::before,
.hero-dark::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
  pointer-events: none;
}

.hero-dark::before {
  width: 460px;
  height: 460px;
  background: var(--magenta);
  top: -180px;
  right: -120px;
}

.hero-dark::after {
  width: 420px;
  height: 420px;
  background: var(--blue);
  bottom: -220px;
  left: -140px;
}

.hero-dark > * { position: relative; z-index: 1; }

.hero-inner {
  max-width: 900px;
  margin: 0 auto;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--magenta);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 800;
  margin: 0 0 20px;
}

.eyebrow .dash {
  width: 28px;
  height: 3px;
  background: linear-gradient(90deg, var(--yellow), var(--magenta));
  display: inline-block;
  flex-shrink: 0;
  border-radius: 3px;
}

.hero-dark .eyebrow { color: var(--yellow); }

.page-title {
  margin: 0 0 10px;
  font-size: clamp(40px, 6.4vw, 64px);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: -0.035em;
}

.gradient-text {
  background: linear-gradient(100deg, var(--yellow), var(--magenta) 45%, var(--blue));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-title {
  margin: 0 0 14px;
  font-size: clamp(25px, 3.6vw, 36px);
  line-height: 1.18;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.tagline {
  margin: 0 0 28px;
  font-size: clamp(17px, 2.2vw, 22px);
  font-weight: 700;
  color: var(--magenta);
  letter-spacing: -0.01em;
}

.hero-dark .tagline { color: var(--yellow); }

.lead {
  margin: 0 0 36px;
  font-size: 17px;
  line-height: 1.72;
  color: var(--text-muted);
  max-width: 62ch;
}

.hero-dark .lead { color: rgba(255, 255, 255, 0.78); }

.note {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--border);
  border-left: 4px solid var(--yellow);
  border-radius: 0 14px 14px 0;
  padding: 20px 24px;
  margin: 36px 0 0;
}

.back-link {
  display: inline-block;
  margin-bottom: 26px;
  color: rgba(255, 255, 255, 0.72);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color 0.15s ease;
}

.back-link:hover { color: var(--yellow); }

.stats {
  list-style: none;
  margin: 0 0 26px;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(148px, 1fr));
  gap: 14px;
}

.stats li {
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  padding: 20px 22px;
  backdrop-filter: blur(6px);
}

.stats strong {
  display: block;
  font-size: 32px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.stats li:nth-child(1) strong { color: var(--yellow); }
.stats li:nth-child(2) strong { color: var(--blue); }
.stats li:nth-child(3) strong { color: #fff; }
.stats li:nth-child(4) strong { color: var(--magenta); }

.stats span {
  display: block;
  margin-top: 4px;
  font-size: 11.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.6);
}

.pills {
  list-style: none;
  margin: 0 0 40px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pills li {
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
}

.pills li:nth-child(1) { background: var(--blue); }
.pills li:nth-child(2) { background: var(--yellow); color: var(--navy); }
.pills li:nth-child(3) { background: var(--magenta); }
.pills li:nth-child(4) { background: rgba(255, 255, 255, 0.16); }
.pills li:nth-child(5) { background: linear-gradient(90deg, var(--magenta), var(--blue)); }

.kit-card {
  display: flex;
  align-items: center;
  gap: 18px;
  background: #fff;
  border-radius: 18px;
  padding: 22px 26px;
  text-decoration: none;
  color: var(--text);
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.20);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.kit-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.26);
}

.kit-icon {
  width: 46px;
  height: 46px;
  object-fit: contain;
  flex-shrink: 0;
}

.kit-text { display: flex; flex-direction: column; gap: 3px; }

.kit-title {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -0.015em;
}

.kit-subtitle { font-size: 14.5px; color: var(--text-muted); }

.kit-arrow {
  margin-left: auto;
  padding-left: 16px;
  font-size: 22px;
  line-height: 1;
  color: var(--magenta);
  transition: transform 0.2s ease;
}

.kit-card:hover .kit-arrow { transform: translateX(5px); }

.reason-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}

.reason {
  --accent: var(--blue);
  display: flex;
  gap: 16px;
  background: #fff;
  border: 1px solid var(--border);
  border-top: 4px solid var(--accent);
  border-radius: 16px;
  padding: 22px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.reason:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 32px rgba(22, 14, 64, 0.10);
}

.reason:nth-child(1) { --accent: var(--blue); }
.reason:nth-child(2) { --accent: var(--magenta); }
.reason:nth-child(3) { --accent: var(--yellow); }
.reason:nth-child(4) { --accent: var(--blue); }
.reason:nth-child(5) { --accent: var(--magenta); }
.reason:nth-child(6) { --accent: var(--yellow); }

.reason-no {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}

.reason:nth-child(3) .reason-no,
.reason:nth-child(6) .reason-no { color: var(--navy); }

.reason-body { display: flex; flex-direction: column; gap: 5px; }

.reason-title {
  font-size: 16.5px;
  font-weight: 800;
  letter-spacing: -0.015em;
}

.reason-desc {
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-muted);
}

.level {
  --accent: var(--blue);
  position: relative;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 30px 28px 28px;
  margin-bottom: 18px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(22, 14, 64, 0.04);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.level::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 6px;
  background: var(--accent);
}

.level:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px rgba(22, 14, 64, 0.11);
}

.level-1 { --accent: var(--blue); }
.level-2 { --accent: var(--yellow); }
.level-3 { --accent: var(--magenta); }
.level-4 { --accent: var(--navy); }

.level-5 {
  --accent: linear-gradient(90deg, var(--yellow), var(--magenta) 50%, var(--blue));
  border-color: var(--magenta);
  box-shadow: 0 10px 36px rgba(237, 0, 134, 0.12);
}

.level-head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 12px;
}

.level-no {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: #fff;
  background: var(--accent);
  padding: 6px 12px;
  border-radius: 999px;
}

.level-2 .level-no { color: var(--navy); }

.level-title {
  margin: 0;
  font-size: 24px;
  font-weight: 800;
  letter-spacing: -0.025em;
}

.level-count {
  margin-left: auto;
  font-size: 11.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-soft);
}

.level-desc {
  margin: 0 0 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 68ch;
}

.project-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(215px, 1fr));
  gap: 8px;
}

.project-list li {
  position: relative;
  padding: 11px 14px 11px 32px;
  background: var(--tint-blue);
  border-radius: 11px;
  font-size: 14.5px;
  font-weight: 600;
}

.level-2 .project-list li { background: var(--tint-yellow); }
.level-3 .project-list li,
.level-5 .project-list li { background: var(--tint-pink); }
.level-4 .project-list li { background: #f2f2f8; }

.project-list li::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.level-5 .project-list li::before { background: var(--magenta); }

.benefit-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.benefit-list li {
  --accent: var(--blue);
  background: #fff;
  border: 1px solid var(--border);
  border-left: 5px solid var(--accent);
  border-radius: 0 14px 14px 0;
  padding: 18px 24px;
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-muted);
}

.benefit-list li:nth-child(1) { --accent: var(--blue); }
.benefit-list li:nth-child(2) { --accent: var(--magenta); }
.benefit-list li:nth-child(3) { --accent: var(--yellow); }
.benefit-list li:nth-child(4) { --accent: var(--blue); }
.benefit-list li:nth-child(5) { --accent: var(--magenta); }

.benefit-list strong {
  display: block;
  color: var(--text);
  font-size: 16.5px;
  font-weight: 800;
  margin-bottom: 3px;
  letter-spacing: -0.015em;
}

.stem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 14px;
}

.stem-card {
  --accent: var(--blue);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 26px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stem-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 34px rgba(22, 14, 64, 0.10);
}

.stem-card:nth-child(1) { --accent: var(--blue); background: var(--tint-blue); }
.stem-card:nth-child(2) { --accent: var(--magenta); background: var(--tint-pink); }
.stem-card:nth-child(3) { --accent: var(--yellow); background: var(--tint-yellow); }
.stem-card:nth-child(4) { --accent: var(--navy); background: #f2f2f8; }

.stem-letter {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  background: var(--accent);
}

.stem-card:nth-child(3) .stem-letter { color: var(--navy); }

.stem-name {
  display: block;
  font-size: 17.5px;
  font-weight: 800;
  margin: 14px 0 6px;
  letter-spacing: -0.015em;
}

.stem-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--text-muted);
}

.part-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}

.part-group {
  --accent: var(--blue);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
}

.part-group:nth-child(1) { --accent: var(--blue); }
.part-group:nth-child(2) { --accent: var(--magenta); }
.part-group:nth-child(3) { --accent: var(--yellow); }
.part-group:nth-child(4) { --accent: var(--blue); }
.part-group:nth-child(5) { --accent: var(--magenta); }
.part-group:nth-child(6) { --accent: var(--yellow); }

.part-group h3 {
  margin: 0 0 14px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 800;
  color: var(--text);
}

.part-group ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.part-group li { font-size: 14.5px; color: var(--text-muted); }

.footer {
  background: var(--navy);
  color: #fff;
  padding: 48px 40px;
  text-align: center;
}

.footer-rule {
  width: 64px;
  height: 4px;
  border-radius: 4px;
  margin: 0 auto 20px;
  background: linear-gradient(90deg, var(--yellow), var(--magenta) 50%, var(--blue));
}

.footer-brand {
  margin: 0 0 8px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.015em;
}

.footer-contact {
  margin: 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
}

.footer-contact a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 255, 255, 0.28);
  transition: color 0.15s ease, border-color 0.15s ease;
}

.footer-contact a:hover {
  color: var(--yellow);
  border-color: var(--yellow);
}

@media (max-width: 640px) {
  .hero { padding: 52px 22px; }
  .hero-dark { padding: 60px 22px 68px; }
  .band { padding: 0 22px; }
  .topbar { padding: 14px 22px; }
  .footer { padding: 40px 22px; }
  .level { padding: 26px 22px 24px; }
  .level-count { margin-left: 0; }
  .collab { font-size: 10px; }
  .hero-dark::before, .hero-dark::after { filter: blur(70px); opacity: 0.45; }
}