:root {
  --ink: #141719;
  --ink-2: #3c4247;
  --muted: #6c7277;
  --cream: #f4f2ee;
  --white: #ffffff;
  --line: #e2ded6;
  --teal: #03b5c2;
  --orange: #ff6b35;
  --orange-dark: #e9551f;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--cream); color: var(--ink); font: 17px/1.55 var(--font); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
h1, h2, h3, p { margin: 0; }
a { color: inherit; text-decoration: none; }
.wrap { width: min(1240px, 100% - 32px); margin-inline: auto; }
.teal { color: var(--teal); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 18px 28px; border-radius: 12px; border: 0; cursor: pointer;
  font: 800 15px/1 var(--font); letter-spacing: .04em; text-transform: uppercase; color: #fff;
  transition: transform .15s, background .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn--orange { background: var(--orange); }
.btn--orange:hover { background: var(--orange-dark); }
.btn--dark { background: var(--ink); }

/* ---------- Top bar ---------- */
.top { position: sticky; top: 0; z-index: 40; background: rgba(244,242,238,.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top__inner { display: flex; align-items: center; gap: 28px; height: 60px; }
.top__brand { font-weight: 800; font-size: 14px; letter-spacing: .08em; }
.top__brand span { font-weight: 600; color: var(--ink-2); text-transform: uppercase; }
.top__nav { display: flex; gap: 24px; margin-left: auto; font-size: 14px; font-weight: 600; text-transform: uppercase; letter-spacing: .05em; color: var(--ink-2); }
.top__nav a:hover, .top__calc:hover { color: var(--teal); }
.top__calc { font-weight: 800; font-size: 14px; letter-spacing: .05em; text-transform: uppercase; }

/* ---------- Type ---------- */
.mega {
  font-weight: 900; text-transform: uppercase; letter-spacing: -.05em; line-height: .92;
  font-size: clamp(52px, 10.5vw, 150px);
}
.mega .indent { display: inline-block; padding-left: .45em; }
.big { font-weight: 900; text-transform: uppercase; letter-spacing: -.045em; line-height: .98; font-size: clamp(38px, 6vw, 84px); }
.big--light { color: #fff; }
.kicker { font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); margin-bottom: 20px; }
.kicker--orange { color: var(--orange); }
.lead { font-size: 20px; color: var(--ink-2); max-width: 620px; }
.lead b { color: var(--ink); }
.sub { font-size: 19px; color: var(--ink-2); max-width: 680px; margin-top: 22px; }
.sub--light { color: rgba(255,255,255,.75); }

/* ---------- Sections ---------- */
.section { padding: clamp(72px, 9vw, 130px) 0; scroll-margin-top: 60px; }
.section--white { background: var(--white); }
.dark { background: var(--ink); color: #fff; padding: clamp(72px, 9vw, 130px) 0; scroll-margin-top: 60px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }

/* ---------- Hero ---------- */
.hero { padding: clamp(48px, 7vw, 90px) 0 clamp(56px, 7vw, 90px); }
.hero__row { display: grid; grid-template-columns: 1.1fr .9fr; gap: 48px; align-items: end; margin-top: 44px; }
.hero__btns { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.chat { background: var(--ink); color: #fff; border-radius: 22px; padding: 20px; box-shadow: 0 30px 60px -30px rgba(20,23,25,.6); transform: rotate(1.5deg); }
.chat__head { display: flex; align-items: center; gap: 6px; font-size: 13px; color: rgba(255,255,255,.6); margin-bottom: 16px; }
.chat__head i { width: 10px; height: 10px; border-radius: 50%; background: #3a3f44; }
.chat__head i:first-child { background: var(--orange); }
.chat__head i:nth-child(2) { background: #f4c542; }
.chat__head i:nth-child(3) { background: var(--teal); }
.chat__head span { margin-left: 8px; }
.msg { padding: 14px 16px; border-radius: 16px; font-size: 16px; max-width: 88%; margin-bottom: 10px; }
.msg--me { background: var(--teal); margin-left: auto; border-bottom-right-radius: 4px; }
.msg--ai { background: #23282c; border-bottom-left-radius: 4px; }
.chat__note { font-size: 12px; color: rgba(255,255,255,.45); text-align: center; margin-top: 6px; }
.facts { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 56px; }
.facts div { background: var(--white); border-radius: 18px; padding: 22px; }
.facts b { display: block; font-size: 34px; font-weight: 900; letter-spacing: -.03em; }
.facts span { font-size: 15px; color: var(--muted); }

/* ---------- Dark problem ---------- */
.dark__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 48px; }
.dcard { background: #1f2427; border-radius: 18px; padding: 26px; }
.dcard b { color: var(--orange); font-size: 15px; font-weight: 900; }
.dcard p { margin-top: 30px; font-size: 18px; font-weight: 600; }

/* ---------- Topics ---------- */
.featured { background: var(--ink); color: #fff; border-radius: 24px; padding: 34px; margin-top: 48px; }
.featured__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.featured h3 { font-size: 28px; font-weight: 900; letter-spacing: -.03em; }
.featured p { color: rgba(255,255,255,.7); margin-top: 8px; }
.topics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 14px; }
.topic { background: var(--white); border-radius: 20px; padding: 28px; }
.topic h3 { font-size: 21px; font-weight: 900; letter-spacing: -.02em; }
.topic p { color: var(--muted); margin-top: 8px; font-size: 16px; }

/* ---------- Calculator ---------- */
.calc { margin-top: 44px; background: var(--cream); border-radius: 28px; padding: clamp(22px, 4vw, 44px); }
.calc__label { font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--ink-2); margin: 26px 0 12px; }
.calc__label:first-child { margin-top: 0; }
.calc__label output { color: var(--teal); font-size: 16px; }
.opts { display: grid; gap: 10px; }
.opts--3 { grid-template-columns: repeat(3, 1fr); }
.opts--4 { grid-template-columns: repeat(4, 1fr); }
.opts label { cursor: pointer; }
.opts input { position: absolute; opacity: 0; pointer-events: none; }
.opts span { display: block; background: var(--white); border-radius: 14px; padding: 18px 20px; transition: background .15s, color .15s; border: 2px solid transparent; }
.opts b { display: block; font-size: 19px; font-weight: 900; }
.opts small { font-size: 12px; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.opts label:hover span { border-color: var(--line); }
.opts input:checked + span { background: var(--ink); color: #fff; }
.opts input:checked + span small { color: var(--teal); }
.opts input:focus-visible + span { outline: 3px solid var(--teal); outline-offset: 2px; }
.range { width: 100%; accent-color: var(--orange); height: 30px; }
.calc__result { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; margin-top: 26px; background: var(--ink); color: #fff; border-radius: 20px; padding: 26px 28px; }
.calc__sum { font-size: clamp(32px, 4vw, 48px); font-weight: 900; letter-spacing: -.03em; line-height: 1.1; }
.calc__small { font-size: 14px; color: rgba(255,255,255,.65); }
.incl { list-style: none; padding: 0; margin: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px 22px; font-size: 15px; color: var(--ink-2); }
.incl li::before { content: "✓ "; color: var(--teal); font-weight: 900; }

/* ---------- Steps ---------- */
.steps { list-style: none; padding: 0; margin: 48px 0 0; border-top: 2px solid var(--ink); }
.steps li { display: grid; grid-template-columns: 140px 1fr; gap: 24px; align-items: baseline; padding: 26px 0; border-bottom: 1px solid var(--line); }
.steps b { font-size: clamp(40px, 5vw, 64px); font-weight: 900; letter-spacing: -.05em; color: var(--teal); line-height: 1; }
.steps h3 { font-size: 26px; font-weight: 900; text-transform: uppercase; letter-spacing: -.03em; }
.steps p { color: var(--ink-2); margin-top: 4px; }

/* ---------- Safety cards ---------- */
.cards { display: grid; gap: 12px; }
.card { background: var(--cream); border-radius: 18px; padding: 24px 26px; }
.card__k { font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--teal); margin-bottom: 6px; }

/* ---------- Team ---------- */
.team { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-top: 44px; }
.person { background: var(--white); border-radius: 22px; padding: 18px 18px 26px; }
.person__ph { aspect-ratio: 4 / 4.2; border-radius: 16px; background: linear-gradient(160deg, #dcd8d0, #c9c4ba); display: grid; place-items: center; font-size: 48px; font-weight: 900; color: rgba(20,23,25,.35); margin-bottom: 18px; }
.person h3 { font-size: 22px; font-weight: 900; text-transform: uppercase; letter-spacing: -.02em; }
.person__r { color: var(--teal); font-weight: 700; font-size: 14px; text-transform: uppercase; letter-spacing: .05em; margin: 4px 0 8px; }
.person p:last-child { color: var(--muted); font-size: 15px; }

/* ---------- FAQ ---------- */
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; padding: 22px 48px 22px 0; font-size: 19px; font-weight: 800; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font-size: 22px; font-weight: 400; }
.faq details[open] summary::after { content: "−"; background: var(--orange); }
.faq details p { padding: 0 0 22px; color: var(--ink-2); }

/* ---------- Lead form ---------- */
.wa { display: inline-block; margin-top: 30px; font-weight: 800; text-transform: uppercase; letter-spacing: .05em; font-size: 15px; color: var(--teal); }
.form { background: #1f2427; border-radius: 24px; padding: 32px; display: grid; gap: 16px; }
.form label { display: grid; gap: 8px; font-size: 13px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: rgba(255,255,255,.7); }
.form input:not([type="checkbox"]), .form select {
  width: 100%; padding: 16px; border-radius: 12px; border: 2px solid transparent; background: #fff; color: var(--ink);
  font: 500 18px var(--font); text-transform: none; letter-spacing: 0;
}
.form input:focus, .form select:focus { outline: none; border-color: var(--teal); }
.form__check { display: flex !important; align-items: center; gap: 10px; text-transform: none !important; letter-spacing: 0 !important; font-weight: 500 !important; font-size: 14px !important; }
.form__check input { width: 20px; height: 20px; accent-color: var(--orange); }

/* ---------- Footer ---------- */
.footer { background: var(--ink); color: rgba(255,255,255,.6); padding: 40px 0 110px; border-top: 1px solid #262b2f; font-size: 14px; }
.footer__inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer__logo { color: #fff; font-weight: 900; font-size: 22px; letter-spacing: -.02em; }

/* ---------- Bottom bar (mobile) ---------- */
.bar { display: none; }

/* ---------- Responsive ---------- */
@media (max-width: 1000px) {
  .top__nav { display: none; }
  .top__calc { margin-left: auto; }
  .hero__row, .split { grid-template-columns: 1fr; gap: 36px; }
  .facts, .dark__grid { grid-template-columns: repeat(2, 1fr); }
  .topics, .team { grid-template-columns: repeat(2, 1fr); }
  .opts--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .top__brand span { display: none; }
  .mega .indent { padding-left: 0; }
  .lead { font-size: 18px; }
  .hero__btns .btn { width: 100%; }
  .chat { transform: none; }
  .facts b { font-size: 26px; }
  .topics, .team, .featured__grid, .opts--3 { grid-template-columns: 1fr; }
  .facts, .dark__grid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .dcard { padding: 20px; }
  .dcard p { font-size: 16px; margin-top: 18px; }
  .steps li { grid-template-columns: 64px 1fr; gap: 12px; }
  .steps h3 { font-size: 20px; }
  .calc__result .btn { width: 100%; }
  .form { padding: 22px; }
  .bar {
    display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; z-index: 50;
    padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: rgba(244,242,238,.96); backdrop-filter: blur(8px); border-top: 1px solid var(--line);
  }
  .bar .btn { padding: 16px 10px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }