:root {
  --navy: #102c45;
  --navy-deep: #092137;
  --teal: #087d80;
  --teal-dark: #056166;
  --mint: #e7f6f3;
  --orange: #f5a34d;
  --ink: #263e50;
  --muted: #526777;
  --line: #d8e3e7;
  --paper: #f5f8fa;
  --white: #ffffff;
  --radius: 20px;
  --shadow: 0 20px 55px rgba(16, 44, 69, .09);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 24px; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.65;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { color: var(--navy); line-height: 1.15; }
h1 { font-size: clamp(2.6rem, 5.6vw, 4.7rem); letter-spacing: -.055em; }
h2 { font-size: clamp(2rem, 3.4vw, 3rem); letter-spacing: -.04em; }
h3 { font-size: 1.25rem; letter-spacing: -.02em; }
p { margin-bottom: 1.15rem; }
a { color: var(--teal-dark); text-underline-offset: 4px; }
a:hover { text-decoration-thickness: 2px; }
button, input, textarea, select { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid #a8520b; outline-offset: 5px; }
svg { display: block; max-width: 100%; }
.container { width: min(1160px, calc(100% - 48px)); margin: auto; }
.skip {
  position: absolute; top: 8px; left: 8px; z-index: 100;
  padding: 12px 20px; background: white; transform: translateY(-180%);
}
.skip:focus { transform: translateY(0); }
.site-header { background: white; border-bottom: 1px solid var(--line); }
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 94px;
}
.brand { display: flex; gap: 10px; align-items: center; text-decoration: none; color: var(--navy); }
.brand-mark {
  width: 43px; height: 43px; background: var(--mint);
  border-radius: 12px; display: grid; place-items: center;
}
.brand-mark svg { width: 29px; height: 29px; }
.brand strong { display: block; font-size: 1.19rem; line-height: 1.2; letter-spacing: -.03em; }
.brand small { display: block; color: var(--muted); font-size: .72rem; }
nav { display: flex; align-items: center; gap: 25px; }
nav a { font-size: .9rem; text-decoration: none; color: var(--ink); padding: 10px 0; }
nav a[aria-current="page"] { color: var(--teal-dark); box-shadow: 0 2px var(--teal); }
nav a.nav-cta { background: var(--navy); color: white; padding: 12px 18px; border-radius: 8px; }
nav a.nav-cta:hover { background: var(--teal-dark); }
.menu-toggle {
  display: none; border: 1px solid var(--line); background: white;
  color: var(--navy); padding: 9px 14px; border-radius: 8px;
}
.eyebrow {
  display: block; font-size: .76rem; font-weight: 750;
  color: var(--teal-dark); letter-spacing: .14em; text-transform: uppercase;
  margin-bottom: 18px;
}
.hero { padding: 80px 0 68px; background: linear-gradient(125deg, #f5faf9, #fff 70%); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 55px; align-items: center; }
.hero h1 { margin-bottom: 24px; }
.hero h1 span { color: var(--teal); }
.lead { font-size: 1.16rem; color: var(--muted); max-width: 650px; }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin: 28px 0 22px; }
.button {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 12px; padding: 14px 22px; min-height: 50px; border-radius: 8px;
  font-weight: 650; font-size: .95rem; text-decoration: none;
  background: var(--teal); color: white; border: 1px solid var(--teal); cursor: pointer;
}
.button:hover { background: var(--teal-dark); border-color: var(--teal-dark); }
.button.secondary { background: white; color: var(--navy); border-color: #afc4cb; }
.button.secondary:hover { background: var(--mint); }
.button.light { background: white; color: var(--navy); border-color: white; }
.micro { font-size: .85rem; color: var(--muted); }
.hero-art { position: relative; padding: 30px 8px 24px; }
.hero-art::before {
  content: ""; position: absolute; inset: 0; background: #dcefed;
  border-radius: 48% 48% 32% 42%; transform: rotate(-8deg);
}
.book-cover {
  position: relative; width: 78%; margin: 0 auto; padding: 31px;
  background: var(--navy); color: white; border-radius: 6px 20px 20px 6px;
  box-shadow: -9px 0 0 #cbdcdd, var(--shadow); transform: rotate(-7deg);
  border-left: 8px solid var(--navy-deep);
}
.book-cover::after { content: ""; position: absolute; right: 18px; top: 0; height: 58px; width: 18px; background: var(--orange); }
.book-cover .book-label { text-transform: uppercase; letter-spacing: .15em; font-size: .67rem; color: #b8dedf; }
.book-cover h2 { color: white; font-size: clamp(1.8rem, 3vw, 2.7rem); margin: 28px 0 8px; }
.book-cover p { color: #c7dede; font-size: .87rem; }
.book-cover svg { margin: 25px 0 18px; width: 100%; height: auto; }
.book-foot { display: flex; justify-content: space-between; gap: 15px; font-size: .67rem; color: #c7dede; }
.art-note { position: relative; text-align: center; margin: 27px 0 0; color: var(--muted); font-size: .77rem; }
.bridge { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.bridge-inner { display: grid; grid-template-columns: repeat(3, 1fr); }
.bridge-item { padding: 24px; display: flex; gap: 13px; align-items: center; }
.bridge-item + .bridge-item { border-left: 1px solid var(--line); }
.bridge-item strong { font-size: .92rem; color: var(--navy); }
.bridge-item small { display: block; color: var(--muted); font-size: .8rem; }
.dot { color: var(--teal); font-size: 1.4rem; font-weight: 750; }
.section { padding: 76px 0; }
.section.soft { background: var(--paper); }
.section-heading { max-width: 690px; margin-bottom: 35px; }
.section-heading h2 { margin-bottom: 15px; }
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card { background: white; padding: 29px; border: 1px solid var(--line); border-radius: var(--radius); }
.card p:last-child { margin-bottom: 0; }
.number {
  width: 43px; height: 43px; display: grid; place-items: center;
  background: var(--mint); color: var(--teal-dark); border-radius: 12px;
  font-weight: 700; margin-bottom: 24px;
}
.card p { color: var(--muted); font-size: .96rem; }
.topic-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 19px; }
.topic-card { padding: 27px; border: 1px solid var(--line); border-radius: 16px; background: white; }
.topic-symbol {
  font-size: .74rem; font-weight: 750; color: var(--teal-dark);
  letter-spacing: .06em; margin-bottom: 19px; display: block;
}
.topic-card p { color: var(--muted); font-size: .94rem; margin-bottom: 0; }
.topic-card:last-child { background: var(--mint); }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: start; }
.audience {
  padding: 38px; border-radius: var(--radius); background: var(--mint);
  display: flex; flex-direction: column; align-items: flex-start;
}
.audience.business { background: var(--navy); color: #dce9ef; }
.audience.business h2, .audience.business .eyebrow { color: white; }
.audience h2 { font-size: 2rem; }
.checklist { list-style: none; padding: 0; margin: 20px 0 25px; }
.checklist li { position: relative; padding-left: 26px; margin-bottom: 12px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--teal); font-weight: 750; }
.business .checklist li::before { color: #79d6ce; }
.banner { background: var(--navy); border-radius: 24px; padding: 43px; color: #dae7ee; }
.banner h2 { color: white; }
.banner-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.banner p { margin-bottom: 0; max-width: 640px; }
.banner .button { flex-shrink: 0; }
.page-hero { padding: 64px 0 54px; background: var(--mint); border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2.5rem, 5vw, 3.9rem); max-width: 820px; margin-bottom: 20px; }
.breadcrumb { font-size: .82rem; color: var(--muted); margin-bottom: 25px; }
.breadcrumb a { color: var(--muted); }
.prose { max-width: 790px; }
.prose h2 { font-size: 1.8rem; margin-top: 38px; }
.prose h2:first-child { margin-top: 0; }
.prose ul { padding-left: 23px; }
.notice { border-left: 4px solid var(--orange); padding: 19px 23px; background: #fff8ee; border-radius: 0 12px 12px 0; }
.notice p:last-child { margin-bottom: 0; }
.form-card { background: white; border: 1px solid var(--line); padding: 32px; border-radius: var(--radius); box-shadow: var(--shadow); }
.form-card h2 { font-size: 1.8rem; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 18px; }
label { display: block; color: var(--navy); font-weight: 650; font-size: .92rem; margin-bottom: 7px; }
.optional { font-weight: 400; color: var(--muted); }
input, select, textarea {
  display: block; width: 100%; border: 1px solid #9db3bf;
  border-radius: 7px; background: white; color: var(--ink); padding: 11px 12px;
}
textarea { resize: vertical; min-height: 135px; }
input:focus, select:focus, textarea:focus { border-color: var(--teal); }
.form-card .button { width: 100%; }
.form-hint { font-size: .82rem; color: var(--muted); }
.hidden { display: none; }
details { border-bottom: 1px solid var(--line); padding: 20px 0; }
summary { cursor: pointer; color: var(--navy); font-weight: 650; padding-right: 20px; }
details p { color: var(--muted); margin: 14px 0 0; }
.contact-detail { padding: 19px 0; border-bottom: 1px solid var(--line); }
.contact-detail strong { display: block; color: var(--navy); }
.contact-detail p { margin: 4px 0 0; }
.placeholder { overflow-wrap: anywhere; color: var(--muted); }
.site-footer { background: var(--navy-deep); color: #b8cdd9; padding: 56px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr; gap: 50px; margin-bottom: 42px; }
.site-footer .brand { color: white; margin-bottom: 20px; }
.site-footer .brand small { color: #b8cdd9; }
.site-footer p { max-width: 340px; font-size: .9rem; }
.site-footer h2 { color: white; font-size: .94rem; margin-bottom: 18px; }
.footer-links { display: grid; gap: 10px; }
.site-footer a { color: #dbe8ef; font-size: .9rem; }
.footer-bottom { border-top: 1px solid #2a4051; padding-top: 22px; display: flex; gap: 20px; justify-content: space-between; font-size: .78rem; }
.footer-bottom p { margin: 0; }
@media (max-width: 1000px) {
  nav { gap: 15px; }
  nav a { font-size: .82rem; }
  .hero-grid { gap: 30px; }
  .book-cover { width: 87%; padding: 24px; }
}
@media (max-width: 820px) {
  .header-inner { flex-wrap: wrap; min-height: 82px; padding: 17px 0; }
  nav { width: 100%; flex-wrap: wrap; padding-top: 10px; }
  .js .menu-toggle { display: block; }
  .js nav { display: none; }
  .js nav.is-open { display: flex; flex-direction: column; align-items: stretch; gap: 5px; }
  .js nav a { padding: 12px; font-size: .95rem; }
  .hero { padding: 50px 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 28px; }
  .hero-art { max-width: 440px; width: 100%; margin: 0 auto; }
  .hero h1 { max-width: 620px; }
  .cards, .topic-grid { grid-template-columns: 1fr 1fr; }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .bridge-item { padding: 19px 13px; }
  .bridge-item strong { font-size: .82rem; }
  .bridge-item small { font-size: .73rem; }
  .banner-inner { align-items: flex-start; flex-direction: column; }
  .footer-grid { grid-template-columns: 1.5fr 1fr; gap: 30px; }
}
@media (max-width: 520px) {
  .container { width: calc(100% - 36px); }
  .section { padding: 52px 0; }
  .cards, .topic-grid, .field-grid, .footer-grid { grid-template-columns: 1fr; }
  .bridge-inner { grid-template-columns: 1fr; }
  .bridge-item + .bridge-item { border-left: 0; border-top: 1px solid var(--line); }
  .bridge-item { padding: 17px 0; }
  .bridge-item strong { font-size: .94rem; }
  .bridge-item small { font-size: .82rem; }
  .actions { flex-direction: column; }
  .actions .button { width: 100%; }
  .audience, .banner, .form-card { padding: 25px; }
  .page-hero { padding: 42px 0; }
  .footer-bottom { flex-direction: column; gap: 8px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}