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

:root {
  --navy: #111827;
  --blue: #4F46E5;
  --teal: #2A9D8F;
  --light: #EEF7F5;
  --gray: #F8FAFC;
  --text: #111827;
  --mid: #64748B;
  --line: #E5E7EB;
  --white: #ffffff;
  --shadow: 0 16px 40px rgba(17, 24, 39, 0.08);
}

html { scroll-behavior: smooth; }
body { font-family: Inter, "Segoe UI", Arial, sans-serif; color: var(--text); background: var(--white); }
a { color: inherit; }

nav {
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--line);
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
}

nav .logo-link { display: flex; align-items: center; }
nav .logo-img { height: 32px; width: auto; display: block; }
nav a { color: var(--mid); font-size: 0.9rem; font-weight: 700; text-decoration: none; }
nav a:hover { color: var(--navy); }
.nav-links { display: flex; align-items: center; gap: 18px; }

.hero {
  background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  color: var(--navy);
  padding: 84px 40px 68px;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.hero .tag {
  display: inline-block;
  background: var(--light);
  color: #17796e;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 24px;
}

.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 800; line-height: 1.15; margin-bottom: 20px; letter-spacing: 0; }
.hero h1 span { color: #17796e; }
.hero p { font-size: 1.15rem; color: var(--mid); max-width: 680px; margin: 0 auto 36px; line-height: 1.7; }
.hero .cta-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.btn-primary,
.btn-outline {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 32px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 700;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
}

.btn-primary { background: var(--navy); color: var(--white); border: 1px solid var(--navy); }
.btn-primary:hover { background: #030712; }
.btn-outline { border: 1px solid var(--line); color: var(--navy); background: var(--white); }
.btn-outline:hover { border-color: var(--navy); }

section { padding: 72px 40px; max-width: 960px; margin: 0 auto; }

.section-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 12px;
}

h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--navy); margin-bottom: 16px; line-height: 1.25; letter-spacing: 0; }
.lead { font-size: 1.05rem; color: var(--mid); line-height: 1.75; max-width: 720px; }

.flow-grid { margin-top: 48px; display: grid; gap: 0; }

.flow-row {
  display: grid;
  grid-template-columns: 56px 180px 1fr;
  gap: 0 24px;
  align-items: start;
  padding: 24px 28px;
  border-radius: 12px;
}

.flow-row:nth-child(odd) { background: var(--gray); }

.flow-letter {
  width: 48px;
  height: 48px;
  background: var(--navy);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--white);
  flex-shrink: 0;
}

.flow-row:nth-child(even) .flow-letter { background: var(--blue); }
.flow-title { font-size: 1.05rem; font-weight: 700; color: var(--navy); padding-top: 12px; }
.flow-desc { font-size: 0.97rem; color: var(--mid); line-height: 1.7; padding-top: 10px; }

.hiw-bg { background: var(--gray); }
.hiw-inner { padding: 72px 40px; max-width: 960px; margin: 0 auto; }
.weeks { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; margin-top: 40px; }

.week-card {
  background: var(--white);
  border-radius: 12px;
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--navy);
  box-shadow: var(--shadow);
}

.week-card:nth-child(2) { border-top-color: var(--blue); }
.week-card:nth-child(3) { border-top-color: var(--teal); }
.week-card:nth-child(4) { border-top-color: #E07B39; }
.week-label { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--mid); margin-bottom: 6px; }
.week-title { font-size: 1.05rem; font-weight: 700; color: var(--navy); margin-bottom: 10px; }
.week-desc { font-size: 0.92rem; color: var(--mid); line-height: 1.65; }

.deliverables { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; margin-top: 40px; }

.del-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px 22px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.05);
}

.del-mark {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--light);
  color: #17796e;
  font-size: 0.85rem;
  font-weight: 800;
  margin-bottom: 14px;
}

.del-title { font-size: 1rem; font-weight: 700; color: var(--navy); margin-bottom: 8px; }
.del-desc { font-size: 0.93rem; color: var(--mid); line-height: 1.65; }

.pilot-box {
  background: var(--navy);
  border-radius: 16px;
  padding: 48px 40px;
  color: var(--white);
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: center;
}

.pilot-box h3 { font-size: 1.5rem; margin-bottom: 12px; line-height: 1.25; }
.pilot-box p { color: #C8DEF0; font-size: 1rem; line-height: 1.7; max-width: 560px; }

.pilot-tag {
  background: var(--teal);
  color: var(--white);
  font-size: 1rem;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 10px;
  white-space: nowrap;
  text-decoration: none;
}

#book { background: var(--light); }
.book-inner { padding: 72px 40px; max-width: 960px; margin: 0 auto; text-align: center; }
.book-inner h2 { margin-bottom: 16px; }
.book-inner > p { font-size: 1.05rem; color: var(--mid); margin: 0 auto 36px; line-height: 1.7; max-width: 720px; }

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 36px;
  text-align: left;
}

.video-card {
  background: var(--white);
  border: 1px solid #CFE7E2;
  border-radius: 12px;
  padding: 18px;
  color: var(--mid);
  line-height: 1.6;
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.05);
}

.video-embed {
  aspect-ratio: 16 / 9;
  border-radius: 10px;
  background: var(--navy);
  overflow: hidden;
  margin-bottom: 16px;
}

.video-embed iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card h3 {
  color: var(--navy);
  font-size: 1rem;
  line-height: 1.3;
  margin-bottom: 8px;
}

.video-card p {
  color: var(--mid);
  font-size: 0.93rem;
  line-height: 1.65;
}

.book-cta {
  margin-top: 32px;
}

.webinar-section { background: var(--white); }
.webinar-inner { padding: 72px 40px; max-width: 960px; margin: 0 auto; }

.webinar-placeholder {
  margin-top: 36px;
  background: var(--gray);
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
  color: var(--mid);
  font-size: 0.95rem;
  line-height: 1.6;
  border: 1.5px dashed #C8D8E8;
}

.webinar-placeholder strong { display: block; font-size: 1.05rem; color: var(--navy); margin-bottom: 8px; }

.ai-page {
  max-width: 980px;
}

.ai-page h1 {
  font-size: clamp(2rem, 5vw, 3.25rem);
  line-height: 1.08;
  letter-spacing: 0;
  color: var(--navy);
  max-width: 880px;
  margin-bottom: 20px;
}

.ai-summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

.ai-summary-grid article {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(17, 24, 39, 0.05);
}

.ai-summary-grid h2 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.ai-summary-grid p,
.ai-callout p {
  color: var(--mid);
  line-height: 1.7;
}

.ai-callout {
  margin-top: 40px;
  padding: 34px;
  border-radius: 16px;
  background: var(--light);
  border: 1px solid #CFE7E2;
}

.ai-callout .btn-primary {
  margin-top: 22px;
}

.ai-data-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 26px;
}

.ai-data-links a {
  color: var(--blue);
  font-weight: 800;
  text-decoration: none;
}

footer {
  background: var(--navy);
  color: #A8C8E8;
  text-align: center;
  padding: 32px 40px;
  font-size: 0.9rem;
}

footer strong { color: var(--white); }
footer a { color: #A8C8E8; }
footer .copyright { margin-top: 8px; font-size: 0.82rem; color: #7A9AB8; }

@media (max-width: 640px) {
  nav { padding: 14px 20px; }
  .nav-links { gap: 12px; }
  .hero { padding: 48px 20px 40px; }
  .hero p { font-size: 1rem; }
  section { padding: 48px 20px; }
  .hiw-inner, .book-inner, .webinar-inner { padding: 48px 20px; }
  .flow-row {
    grid-template-columns: 48px 1fr;
    padding: 20px 16px;
  }
  .flow-title { grid-column: 2; }
  .flow-desc { grid-column: 1 / -1; padding-top: 8px; }
  .pilot-box {
    grid-template-columns: 1fr;
    padding: 32px 24px;
    text-align: center;
  }
  .pilot-tag { justify-self: center; }
  .weeks { grid-template-columns: 1fr; }
  .deliverables { grid-template-columns: 1fr; }
  .video-grid { grid-template-columns: 1fr; }
  .ai-summary-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero h1 { font-size: 1.8rem; }
  .btn-primary, .btn-outline { width: 100%; text-align: center; }
  .hero .cta-group { flex-direction: column; align-items: stretch; padding: 0 8px; }
}