/* ============================================================
   Acorn Driving School — one-page site
   Palette: oak green + acorn amber on warm cream
   ============================================================ */

:root {
  --green-900: #0e2a1e;
  --green-800: #143728;
  --green-700: #1b4332;
  --green-600: #2d6a4f;
  --green-500: #40916c;
  --green-100: #d8ece1;

  --amber-600: #b06d24;
  --amber-500: #d99442;
  --amber-200: #f4dcbd;

  --cream: #fbf8f3;
  --cream-2: #f4efe6;
  --ink: #1c1a17;
  --ink-2: #4e4a43;
  --ink-3: #7c766c;
  --line: #e4ddd0;
  --white: #fff;

  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 1px 2px rgba(28, 26, 23, .05), 0 4px 14px rgba(28, 26, 23, .05);
  --shadow-md: 0 2px 6px rgba(28, 26, 23, .06), 0 18px 40px rgba(28, 26, 23, .09);
  --shadow-lg: 0 30px 70px rgba(14, 42, 30, .18);

  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;

  --nav-h: 72px;
  --pad: clamp(20px, 5vw, 40px);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 16px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink-2);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
h1, h2, h3 { font-family: var(--serif); color: var(--ink); line-height: 1.1; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.02em; }
h1 { font-size: clamp(2.4rem, 5.6vw, 4rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.9rem); }
h3 { font-size: 1.22rem; letter-spacing: -.01em; }
p  { margin: 0 0 1em; }
a  { color: var(--green-600); text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }

.skip {
  position: absolute; left: -9999px; top: 8px; z-index: 999;
  background: var(--green-700); color: #fff; padding: 10px 16px; border-radius: 8px;
}
.skip:focus { left: 12px; }
:focus-visible { outline: 3px solid var(--amber-500); outline-offset: 3px; border-radius: 6px; }

/* ---------- layout ---------- */
.wrap { width: min(1160px, 100% - (var(--pad) * 2)); margin-inline: auto; }
.wrap--narrow { width: min(780px, 100% - (var(--pad) * 2)); }
.section { padding: clamp(64px, 9vw, 116px) 0; }
.section--tint { background: var(--cream-2); }
.section--dark {
  background:
    radial-gradient(900px 500px at 85% 0%, rgba(64, 145, 108, .28), transparent 60%),
    linear-gradient(160deg, var(--green-800), var(--green-900));
  color: rgba(255, 255, 255, .78);
}
.section--dark h2, .section--dark h3, .section--dark strong { color: #fff; }

.grid { display: grid; gap: 24px; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ---------- bits ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  color: var(--amber-600); margin: 0 0 18px;
}
.eyebrow--light { color: var(--amber-200); }
.dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }

.lede { font-size: 1.1rem; max-width: 52ch; color: var(--ink-2); }
.sec-head { max-width: 46rem; margin-bottom: clamp(34px, 5vw, 56px); }
.sec-sub { font-size: 1.06rem; max-width: 54ch; }
.sec-sub--light { color: rgba(255, 255, 255, .72); }
.grad {
  background: linear-gradient(96deg, var(--green-600), var(--amber-500));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.fineprint { margin-top: 22px; font-size: .88rem; color: var(--ink-3); text-align: center; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  background: var(--green-700); color: #fff;
  font: 600 .96rem/1 var(--sans);
  padding: 15px 26px; border: 1px solid transparent; border-radius: 999px; cursor: pointer;
  box-shadow: 0 6px 18px rgba(27, 67, 50, .22);
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.btn:hover { background: var(--green-600); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(27, 67, 50, .28); }
.btn:active { transform: translateY(0); }
.btn--sm { padding: 11px 20px; font-size: .89rem; }
.btn--full { width: 100%; margin-top: 6px; }
.btn--ghost {
  background: transparent; color: var(--green-700);
  border-color: var(--line); box-shadow: none;
}
.btn--ghost:hover { background: var(--white); border-color: var(--green-500); color: var(--green-700); }
.btn--light { background: #fff; color: var(--green-800); box-shadow: none; }
.btn--light:hover { background: var(--amber-200); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(251, 248, 243, .82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.nav.is-stuck { border-bottom-color: var(--line); box-shadow: 0 4px 20px rgba(28, 26, 23, .05); }
.nav__inner { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }

.logo { display: inline-flex; align-items: center; gap: 11px; color: var(--green-700); }
.logo__mark { width: 30px; height: 30px; flex: none; }
.logo__text {
  font: 700 1.16rem/1 var(--serif); color: var(--ink); letter-spacing: -.02em;
  display: flex; flex-direction: column;
}
.logo__text em {
  font: 500 .64rem/1.4 var(--sans); font-style: normal;
  letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-top: 3px;
}

.nav__links { display: flex; align-items: center; gap: 30px; }
.nav__links a { color: var(--ink-2); font-size: .95rem; font-weight: 500; position: relative; }
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: -5px; height: 2px; width: 0;
  background: var(--amber-500); transition: width .22s ease;
}
.nav__links a:not(.btn):hover { color: var(--ink); }
.nav__links a:not(.btn):hover::after { width: 100%; }
.nav__links .btn { color: #fff; }

.burger { display: none; background: none; border: 0; padding: 10px; cursor: pointer; }
.burger span { display: block; width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s ease, opacity .2s ease; }
.burger span + span { margin-top: 6px; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  padding: clamp(56px, 8vw, 104px) 0 clamp(64px, 9vw, 112px);
  background:
    radial-gradient(680px 420px at 12% -10%, rgba(64, 145, 108, .14), transparent 65%),
    radial-gradient(600px 420px at 92% 8%, rgba(217, 148, 66, .16), transparent 62%),
    var(--cream);
}
.hero__inner { display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(30px, 5vw, 64px); align-items: center; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin: 30px 0 42px; }

.trust {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;
  padding-top: 28px; border-top: 1px solid var(--line);
}
.trust strong { display: block; font-family: var(--serif); font-size: 1.02rem; color: var(--ink); }
.trust span { font-size: .84rem; color: var(--ink-3); line-height: 1.4; display: block; }

.hero__art { position: relative; display: grid; place-items: center; min-height: 340px; }
.acorn-art {
  width: min(320px, 78%);
  filter: drop-shadow(0 30px 45px rgba(14, 42, 30, .22));
  animation: bob 7s ease-in-out infinite;
}
@keyframes bob { 0%, 100% { transform: translateY(-8px); } 50% { transform: translateY(10px); } }

.card-float {
  position: absolute; z-index: 2;
  display: flex; align-items: center; gap: 11px;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px);
  border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 16px; box-shadow: var(--shadow-md);
  max-width: 230px;
}
.card-float strong { display: block; font-size: .9rem; color: var(--ink); }
.card-float small { font-size: .76rem; color: var(--ink-3); line-height: 1.35; display: block; }
.card-float--a { top: 6%; left: -4%; animation: bob 8s ease-in-out infinite .4s; }
.card-float--b { bottom: 5%; right: -4%; flex-direction: column; align-items: flex-start; gap: 4px; animation: bob 9s ease-in-out infinite 1.1s; }
.tick {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  background: var(--green-100); color: var(--green-700);
  display: grid; place-items: center; font-size: .85rem; font-weight: 700;
}
.stars { color: var(--amber-500); font-size: .82rem; letter-spacing: 2px; }

/* ---------- cards ---------- */
.card {
  position: relative;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 32px 28px; box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease;
}
.card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--green-100); }
.card__icon {
  width: 44px; height: 44px; border-radius: 12px; margin-bottom: 20px;
  display: grid; place-items: center;
  background: var(--green-100); color: var(--green-700);
  font: 700 .92rem/1 var(--serif);
}
.card--feature { border-color: var(--green-500); box-shadow: var(--shadow-md); }
.card--feature .card__icon { background: var(--green-700); color: #fff; }

.ribbon {
  position: absolute; top: -12px; right: 22px;
  background: var(--amber-500); color: #3a2408;
  font-size: .7rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  padding: 6px 13px; border-radius: 999px;
}

.ticks { display: grid; gap: 9px; margin-top: 18px; font-size: .93rem; }
.ticks li { position: relative; padding-left: 26px; }
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .48em;
  width: 15px; height: 8px; border-left: 2px solid var(--green-500); border-bottom: 2px solid var(--green-500);
  transform: rotate(-45deg) translateY(-2px);
}
.ticks--lg { font-size: 1rem; gap: 13px; }

/* ---------- why / stats ---------- */
.why { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(34px, 6vw, 74px); align-items: center; }
.why .btn { margin-top: 10px; }
.stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: rgba(255, 255, 255, .14); border-radius: var(--radius); overflow: hidden; }
.stats li { background: rgba(255, 255, 255, .05); padding: 30px 26px; }
.stats strong { display: block; font: 700 clamp(2.1rem, 4vw, 2.9rem)/1 var(--serif); color: #fff; }
.stats span { font-size: .87rem; color: rgba(255, 255, 255, .68); line-height: 1.4; display: block; margin-top: 6px; }

/* ---------- pricing ---------- */
.price-grid { align-items: stretch; }
.price {
  position: relative; display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 34px 28px; box-shadow: var(--shadow-sm);
  transition: transform .22s ease, box-shadow .22s ease;
}
.price:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); }
.price .ticks { flex: 1; margin-bottom: 24px; }
.price__amt { font: 700 2.5rem/1 var(--serif); color: var(--ink); margin: 4px 0 10px; }
.price__amt span { font: 500 .92rem/1 var(--sans); color: var(--ink-3); margin-left: 4px; }
.price__note { font-size: .93rem; color: var(--ink-3); }
.price--feature {
  background: linear-gradient(180deg, #fff, #fdfaf4);
  border-color: var(--amber-500); box-shadow: var(--shadow-md);
}

/* ---------- quotes ---------- */
.quote {
  margin: 0; background: var(--white); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 30px 28px; box-shadow: var(--shadow-sm);
}
.quote p { font-size: 1rem; color: var(--ink-2); margin: 14px 0 20px; }
.quote footer { display: flex; flex-direction: column; border-top: 1px solid var(--line); padding-top: 14px; }
.quote footer strong { font-size: .93rem; color: var(--ink); }
.quote footer span { font-size: .82rem; color: var(--ink-3); }

/* ---------- areas ---------- */
.areas { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(34px, 6vw, 70px); align-items: center; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.chips li {
  background: var(--white); border: 1px solid var(--line); border-radius: 999px;
  padding: 9px 17px; font-size: .9rem; font-weight: 500; color: var(--ink-2);
  box-shadow: var(--shadow-sm);
}
.areas__box {
  background: var(--green-700); color: rgba(255, 255, 255, .78);
  border-radius: var(--radius); padding: 38px 34px; box-shadow: var(--shadow-lg);
}
.areas__box h3 { color: #fff; }
.areas__box .ticks li::before { border-color: var(--amber-500); }
.areas__box strong { color: #fff; }

/* ---------- faq ---------- */
.faq { display: grid; gap: 12px; }
.faq details {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-sm);
  padding: 4px 22px; box-shadow: var(--shadow-sm); transition: border-color .2s ease;
}
.faq details[open] { border-color: var(--green-500); }
.faq summary {
  list-style: none; cursor: pointer; padding: 17px 34px 17px 0; position: relative;
  font-weight: 600; color: var(--ink); font-size: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 4px; top: 50%;
  width: 9px; height: 9px; margin-top: -6px;
  border-right: 2px solid var(--green-600); border-bottom: 2px solid var(--green-600);
  transform: rotate(45deg); transition: transform .22s ease;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { margin: 0 0 18px; font-size: .97rem; }

/* ---------- contact ---------- */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 6vw, 68px); align-items: start; }
.contact__list { display: grid; gap: 20px; margin-top: 34px; }
.contact__list li { display: flex; align-items: center; gap: 15px; }
.contact__list strong { display: block; font-size: .78rem; letter-spacing: .1em; text-transform: uppercase; color: var(--amber-200); }
.contact__list a, .contact__list div > span { color: #fff; font-size: 1.04rem; }
.contact__list a:hover { color: var(--amber-200); }
.ci {
  flex: none; width: 42px; height: 42px; border-radius: 12px;
  display: grid; place-items: center;
  background: rgba(255, 255, 255, .1); color: #fff;
}

.form {
  background: var(--white); border-radius: var(--radius); padding: 34px 30px;
  box-shadow: var(--shadow-lg); color: var(--ink-2);
}
.form h3 { margin-bottom: 20px; }
.field { margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.field label { display: block; font-size: .83rem; font-weight: 600; color: var(--ink); margin-bottom: 7px; }
.opt { font-weight: 400; color: var(--ink-3); }
.field input, .field select, .field textarea {
  width: 100%; padding: 13px 15px; font: 400 .97rem var(--sans); color: var(--ink);
  background: var(--cream); border: 1px solid var(--line); border-radius: 10px;
  transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
}
.field textarea { resize: vertical; min-height: 84px; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; background: #fff; border-color: var(--green-500);
  box-shadow: 0 0 0 3px rgba(64, 145, 108, .16);
}
.field input.invalid { border-color: #c0392b; box-shadow: 0 0 0 3px rgba(192, 57, 43, .12); }
.form__status { margin: 14px 0 0; font-size: .9rem; min-height: 1.2em; }
.form__status.ok { color: var(--green-600); font-weight: 600; }
.form__status.err { color: #c0392b; }

/* ---------- footer ---------- */
.footer { background: var(--green-900); color: rgba(255, 255, 255, .6); padding: 56px 0 26px; }
.footer__inner { display: flex; flex-wrap: wrap; gap: 34px; justify-content: space-between; padding-bottom: 34px; }
.footer .logo { color: var(--green-500); }
.footer .logo__text { color: #fff; }
.footer .logo__text em { color: rgba(255, 255, 255, .5); }
.footer__note { max-width: 42ch; margin-top: 16px; font-size: .92rem; }
.footer__links { display: flex; flex-wrap: wrap; gap: 12px 26px; align-content: start; }
.footer__links a { color: rgba(255, 255, 255, .68); font-size: .93rem; }
.footer__links a:hover { color: var(--amber-200); }
.footer__base {
  display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: space-between;
  border-top: 1px solid rgba(255, 255, 255, .1); padding-top: 22px;
  font-size: .82rem; color: rgba(255, 255, 255, .45);
}

/* ---------- reveal ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .3, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 940px) {
  .hero__inner, .why, .areas, .contact { grid-template-columns: 1fr; }
  .hero__art { order: -1; min-height: 260px; }
  .acorn-art { width: min(230px, 55%); }
  .card-float--a { left: 0; }
  .card-float--b { right: 0; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  body { font-size: 16px; }
  .burger { display: block; }
  .nav__links {
    position: absolute; top: var(--nav-h); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--cream); border-bottom: 1px solid var(--line);
    padding: 8px var(--pad) 22px;
    box-shadow: var(--shadow-md);
    display: none;
  }
  .nav__links.open { display: flex; }
  .nav__links a { padding: 14px 0; border-bottom: 1px solid var(--line); }
  .nav__links a:not(.btn)::after { display: none; }
  .nav__links .btn { margin-top: 16px; border-bottom: 0; justify-content: center; }
  .trust { grid-template-columns: 1fr; gap: 14px; }
  .field-row { grid-template-columns: 1fr; }
  .card-float { max-width: 190px; padding: 10px 13px; }
  .footer__inner { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .nav, .burger, .hero__art, .form { display: none; }
  body { background: #fff; color: #000; }
}