:root {
  --ink: #142523;
  --ink-soft: #314744;
  --muted: #647572;
  --line: #dce5e2;
  --surface: #ffffff;
  --surface-soft: #f4f7f5;
  --accent: #e95c47;
  --accent-dark: #c94231;
  --accent-soft: #fff0ec;
  --teal: #174f49;
  --teal-soft: #e8f2ef;
  --radius: 18px;
  --shadow: 0 18px 50px rgba(20,37,35,.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--surface);
  font-family: Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  padding: 10px max(20px,calc((100vw - 1180px)/2));
  border-bottom: 1px solid rgba(220,229,226,.9);
  background: rgba(255,255,255,.94);
  backdrop-filter: blur(16px);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -.03em;
  text-decoration: none;
}
.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: var(--ink);
  font-size: 1rem;
  font-weight: 800;
  box-shadow: 0 6px 14px rgba(20,37,35,.16);
}
.header-actions { display: flex; align-items: center; gap: 15px; }
.text-link { color: var(--ink-soft); font-size: .88rem; font-weight: 650; text-decoration: none; }
.text-link:hover { color: var(--accent-dark); }
#navSignupPlansLink[hidden] { display: none !important; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 12px;
  cursor: pointer;
  font-weight: 750;
  line-height: 1.1;
  text-align: center;
  text-decoration: none;
  transition: transform .16s,background .16s,border-color .16s,box-shadow .16s;
}
.button:hover { transform: translateY(-1px); }
.button:focus-visible { outline: 3px solid rgba(233,92,71,.22); outline-offset: 3px; }
.button-small { min-height: 42px; padding: 0 16px; border-color: var(--ink); background: var(--ink); color: #fff; font-size: .82rem; }
.button-primary { border-color: var(--accent); background: var(--accent); color: #fff; box-shadow: 0 9px 22px rgba(233,92,71,.22); }
.button-primary:hover { border-color: var(--accent-dark); background: var(--accent-dark); }
.button-quiet { border-color: var(--line); background: #fff; color: var(--ink); }
.button-quiet:hover, .button-outline:hover { border-color: var(--ink-soft); background: var(--surface-soft); }
.button-outline { border-color: var(--line); background: #fff; color: var(--ink); }
.button-wide { width: 100%; }

main { overflow: hidden; }
.hero {
  display: grid;
  grid-template-columns: minmax(0,1.25fr) minmax(330px,.75fr);
  gap: clamp(36px,7vw,100px);
  align-items: center;
  max-width: 1180px;
  min-height: 580px;
  margin: auto;
  padding: clamp(70px,9vw,118px) 20px;
}
.hero-copy { max-width: 720px; }
.eyebrow {
  margin: 0 0 14px;
  color: var(--accent-dark);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .13em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 760px;
  margin-bottom: 22px;
  font-size: clamp(2.65rem,5.6vw,5.15rem);
  line-height: .99;
  letter-spacing: -.065em;
}
.hero-lede {
  max-width: 660px;
  margin-bottom: 30px;
  color: var(--ink-soft);
  font-size: clamp(1.05rem,1.5vw,1.22rem);
  line-height: 1.65;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.trust-row { display: flex; flex-wrap: wrap; gap: 10px 20px; margin-top: 22px; color: var(--muted); font-size: .78rem; font-weight: 600; }
.trust-row i { margin-right: 5px; color: var(--teal); }

.hero-proof {
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(145deg,#fff,var(--surface-soft));
  box-shadow: var(--shadow);
}
.proof-label, .option-label {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: .67rem;
  font-weight: 800;
  letter-spacing: .13em;
}
.hero-proof ol { margin: 0; padding: 0; list-style: none; counter-reset: steps; }
.hero-proof li { position: relative; display: grid; grid-template-columns: 38px 1fr; gap: 0 12px; padding: 4px 0 24px; counter-increment: steps; }
.hero-proof li:last-child { padding-bottom: 4px; }
.hero-proof li::before { content: counter(steps); grid-row: 1/3; display: grid; width: 36px; height: 36px; place-items: center; border-radius: 50%; color: var(--teal); background: var(--teal-soft); font-size: .78rem; font-weight: 800; }
.hero-proof li:not(:last-child)::after { content: ''; position: absolute; top: 39px; left: 17px; width: 1px; height: 20px; background: var(--line); }
.hero-proof strong { font-size: .92rem; }
.hero-proof span { color: var(--muted); font-size: .82rem; line-height: 1.5; }

.offer-section { padding: 90px 20px; background: var(--surface-soft); }
.section-heading { max-width: 760px; margin: 0 auto 42px; text-align: center; }
.section-heading h2, .mission-section h2 { margin-bottom: 13px; font-size: clamp(2rem,3.5vw,3rem); line-height: 1.08; letter-spacing: -.045em; }
.section-heading > p:last-child { color: var(--muted); }

.premium-offer {
  display: grid;
  grid-template-columns: minmax(280px,.7fr) minmax(0,1.3fr);
  max-width: 980px;
  margin: auto;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: #fff;
  box-shadow: var(--shadow);
  overflow: hidden;
}
.offer-intro { position: relative; padding: clamp(30px,5vw,54px); color: #fff; background: var(--ink); }
.recommended { display: inline-block; margin-bottom: 30px; padding: 6px 9px; border-radius: 6px; color: var(--ink); background: #fff; font-size: .63rem; font-weight: 850; letter-spacing: .1em; }
.plan-name { margin-bottom: 4px; font-size: 1.08rem; font-weight: 750; }
.price { display: flex; align-items: flex-start; margin: 0 0 4px; letter-spacing: -.06em; }
.price .currency { padding-top: 13px; font-size: 1.6rem; font-weight: 700; }
.price strong { font-size: 6.2rem; line-height: .95; }
.price .period { align-self: flex-end; padding-bottom: 10px; color: #c9d5d2; font-size: .92rem; letter-spacing: 0; }
.price-note { margin-bottom: 28px; color: #c9d5d2; font-size: .83rem; }
.checkout-note { margin: 12px 0 0; color: #acbfbb; text-align: center; font-size: .7rem; }
.checkout-note i { margin-right: 5px; }
.offer-benefits { padding: clamp(30px,5vw,54px); }
.offer-benefits h3 { margin-bottom: 24px; font-size: 1.2rem; letter-spacing: -.025em; }
.offer-benefits ul { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 30px; margin: 0; padding: 0; list-style: none; }
.offer-benefits li { display: grid; grid-template-columns: 25px 1fr; gap: 10px; }
.offer-benefits li > i { display: grid; width: 24px; height: 24px; place-items: center; border-radius: 50%; color: var(--teal); background: var(--teal-soft); font-size: .7rem; }
.offer-benefits strong { display: block; font-size: .86rem; }
.offer-benefits small { display: block; margin-top: 3px; color: var(--muted); font-size: .73rem; line-height: 1.5; }

.secondary-options { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; max-width: 980px; margin: 18px auto 0; }
.secondary-card { display: grid; grid-template-columns: 1fr auto; gap: 24px; align-items: center; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
.secondary-card .option-label { margin-bottom: 7px; }
.secondary-card h3 { margin-bottom: 7px; font-size: 1.12rem; letter-spacing: -.025em; }
.secondary-card > div > p:last-child { margin-bottom: 0; color: var(--muted); font-size: .8rem; line-height: 1.5; }
.secondary-action { min-width: 170px; text-align: right; }
.secondary-price { margin: 0 0 8px; font-size: 1.2rem; font-weight: 800; }
.secondary-price span { color: var(--muted); font-size: .7rem; font-weight: 500; }
.schools-card { background: var(--teal-soft); }

.mission-section { display: grid; grid-template-columns: .8fr 1.2fr; gap: 60px; max-width: 1080px; margin: auto; padding: 100px 20px; }
.mission-section > p { margin: 4px 0 0; color: var(--ink-soft); font-size: 1.04rem; line-height: 1.75; }

.faq-section { padding: 80px 20px 100px; border-top: 1px solid var(--line); }
.section-heading.compact { margin-bottom: 25px; }
.faq-list { max-width: 760px; margin: auto; border-top: 1px solid var(--line); }
details { border-bottom: 1px solid var(--line); }
summary { position: relative; padding: 22px 42px 22px 0; cursor: pointer; font-weight: 700; list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: '+'; position: absolute; right: 5px; color: var(--muted); font-size: 1.4rem; font-weight: 400; }
details[open] summary::after { content: '–'; }
details p { max-width: 680px; padding: 0 40px 22px 0; color: var(--muted); font-size: .9rem; }

footer { display: flex; justify-content: space-between; gap: 20px; max-width: 1180px; margin: auto; padding: 26px 20px; color: var(--muted); font-size: .76rem; }
footer nav { display: flex; gap: 18px; }
footer a { text-decoration: none; }
footer a:hover { color: var(--ink); }

@media (max-width: 820px) {
  .site-header { min-height: 60px; padding: 8px 14px; }
  .brand-mark { width: 36px; height: 36px; }
  .text-link { display: none; }
  .button-small { min-height: 40px; }
  .hero { grid-template-columns: 1fr; min-height: 0; padding: 58px 18px 64px; gap: 38px; }
  h1 { font-size: clamp(2.55rem,12vw,4.1rem); }
  .hero-lede { font-size: 1rem; }
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; }
  .trust-row { display: grid; gap: 7px; }
  .hero-proof { padding: 24px; }
  .offer-section { padding: 64px 14px; }
  .section-heading { margin-bottom: 28px; text-align: left; }
  .premium-offer { grid-template-columns: 1fr; }
  .offer-intro { padding: 30px 24px; }
  .recommended { margin-bottom: 22px; }
  .price strong { font-size: 5rem; }
  .offer-benefits { padding: 28px 22px 32px; }
  .offer-benefits ul { grid-template-columns: 1fr; gap: 18px; }
  .secondary-options { grid-template-columns: 1fr; }
  .secondary-card { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
  .secondary-action { min-width: 0; text-align: left; }
  .secondary-action .button { width: 100%; }
  .mission-section { grid-template-columns: 1fr; gap: 10px; padding: 70px 18px; }
  .faq-section { padding: 62px 18px 78px; }
  footer { flex-direction: column; padding: 24px 18px; }
}

@media (max-width: 380px) {
  .button-small { padding: 0 12px; }
  h1 { font-size: 2.45rem; }
  .hero { padding-top: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}