:root {
  --ink: #14213D;
  --muted: #5B6475;
  --line: #E1E4EB;
  --bg: #F6F7FB;
  --accent: #3A3FD8;
  --accent-dark: #272BA8;
  --accent-soft: #F1F1FD;
  --ok: #0B5E52;
  --ok-soft: #DDF3EE;
  --warm: #9A3412;
  --warm-soft: #FDEBD8;
  --danger: #B42318;
  font-family: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color: var(--ink);
  -webkit-text-size-adjust: 100%;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: #FFFFFF; line-height: 1.5; }
a { color: var(--accent); }
a:hover { color: var(--accent-dark); }
h1, h2, h3, p { margin: 0; }
button, input, select, textarea { font: inherit; color: inherit; }
img, svg { display: block; }

.wrap { max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.section { padding: 88px 0; }
.section.tint { background: var(--bg); }
.eyebrow { font-size: 13px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--accent); }
.h2 { font-size: clamp(28px, 4vw, 38px); line-height: 1.15; font-weight: 800; letter-spacing: -0.02em; }
.lead { font-size: 17px; color: var(--muted); max-width: 640px; }
.head { display: flex; flex-direction: column; gap: 12px; margin-bottom: 40px; }

/* header */
.header { position: sticky; top: 0; z-index: 10; background: rgba(255, 255, 255, 0.94); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.header .wrap { height: 68px; display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; letter-spacing: -0.3px; color: var(--ink); text-decoration: none; }
.brand:hover { color: var(--ink); }
.brand-mark { width: 34px; height: 34px; border-radius: 10px; background: var(--accent); display: flex; align-items: center; justify-content: center; }
.menu { display: flex; align-items: center; gap: 28px; }
.menu a { color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 600; }
.menu a:hover { color: var(--accent); }
.header-actions { display: flex; gap: 10px; align-items: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 48px; padding: 0 22px; border-radius: 12px; font-size: 15px; font-weight: 700; text-decoration: none; border: 0; cursor: pointer; white-space: nowrap; }
.btn-primary { background: var(--accent); color: #FFFFFF; }
.btn-primary:hover { background: var(--accent-dark); color: #FFFFFF; }
.btn-outline { background: #FFFFFF; color: var(--ink); border: 1.5px solid #D9DDE5; }
.btn-outline:hover { background: var(--bg); color: var(--ink); }
.btn-sm { height: 40px; padding: 0 16px; font-size: 14px; border-radius: 10px; }
.btn[disabled] { opacity: 0.6; cursor: not-allowed; }

/* hero */
.hero { padding: 72px 0 88px; background: linear-gradient(180deg, #FFFFFF 0%, var(--bg) 100%); }
.hero .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 56px; }
.hero-text { flex: 1 1 460px; display: flex; flex-direction: column; gap: 22px; }
.hero h1 { font-size: clamp(36px, 5.4vw, 58px); line-height: 1.06; font-weight: 800; letter-spacing: -0.03em; }
.hero h1 span { color: var(--accent); }
.hero .lead { font-size: 18px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-note { font-size: 13.5px; color: var(--muted); display: flex; flex-wrap: wrap; gap: 6px 18px; }
.hero-note span { display: inline-flex; align-items: center; gap: 6px; }
.hero-visual { flex: 1 1 340px; display: flex; justify-content: center; }

.sample { width: 100%; max-width: 380px; background: #FFFFFF; border: 1px solid var(--line); border-radius: 24px; padding: 18px; box-shadow: 0 24px 60px rgba(20, 33, 61, 0.12); display: flex; flex-direction: column; gap: 14px; }
.sample-tag { font-size: 12px; font-weight: 700; color: var(--muted); }
.sample-type { background: var(--accent); color: #FFFFFF; border-radius: 18px; padding: 18px; display: flex; flex-direction: column; gap: 4px; }
.sample-type b { font-size: 36px; letter-spacing: 2px; line-height: 1; }
.sample-type small { font-size: 12px; font-weight: 700; letter-spacing: 0.06em; color: #DADCFB; }
.sample-type span { font-size: 15px; font-weight: 700; }
.sample-row { display: flex; flex-direction: column; gap: 6px; font-size: 13px; }
.sample-row .labels { display: flex; justify-content: space-between; }
.sample-row .labels span:last-child { color: var(--muted); }
.bar { height: 8px; border-radius: 4px; background: #E8EAF0; overflow: hidden; }
.bar div { height: 100%; border-radius: 4px; background: var(--accent); }
.sample-match { display: flex; align-items: center; justify-content: space-between; gap: 10px; border-top: 1px solid #EEF0F4; padding-top: 12px; font-size: 14px; font-weight: 700; }
.fit { font-size: 12px; font-weight: 700; color: var(--ok); background: var(--ok-soft); padding: 5px 9px; border-radius: 999px; }

/* audience cards */
.grid-4 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.card { background: #FFFFFF; border: 1px solid var(--line); border-radius: 20px; padding: 24px; display: flex; flex-direction: column; gap: 14px; }
.card h3 { font-size: 19px; font-weight: 800; }
.card p { color: var(--muted); font-size: 15px; }
.card ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 14.5px; }
.card li { display: flex; gap: 8px; align-items: flex-start; }
.card li svg { flex-shrink: 0; margin-top: 3px; }
.card .btn { margin-top: auto; align-self: flex-start; }
.icon-tile { width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; }

.partner-band { margin-top: 18px; border-radius: 20px; background: var(--ink); color: #FFFFFF; padding: 28px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; }
.partner-band h3 { font-size: 21px; font-weight: 800; }
.partner-band p { color: #C9CCF7; font-size: 15px; max-width: 620px; margin-top: 6px; }
.partner-band .btn { background: #FFFFFF; color: var(--ink); }

/* steps */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 18px; counter-reset: step; }
.step { display: flex; flex-direction: column; gap: 10px; padding: 24px; border-radius: 20px; background: #FFFFFF; border: 1px solid var(--line); }
.step-num { width: 40px; height: 40px; border-radius: 12px; background: var(--accent-soft); color: var(--accent-dark); font-weight: 800; display: flex; align-items: center; justify-content: center; }
.step h3 { font-size: 18px; font-weight: 800; }
.step p { color: var(--muted); font-size: 15px; }

/* about */
.about { display: flex; flex-wrap: wrap; gap: 48px; align-items: flex-start; }
.about-text { flex: 1 1 440px; display: flex; flex-direction: column; gap: 18px; }
.about-text p { font-size: 16.5px; color: var(--muted); }
.about-side { flex: 1 1 340px; display: flex; flex-direction: column; gap: 14px; }
.person { display: flex; gap: 16px; align-items: center; background: #FFFFFF; border: 1px solid var(--line); border-radius: 20px; padding: 20px; }
.avatar { width: 64px; height: 64px; border-radius: 32px; background: #E7E8FB; color: var(--accent-dark); font-weight: 800; font-size: 20px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.person b { font-size: 16px; }
.person span { display: block; font-size: 14px; color: var(--muted); }
.value { display: flex; gap: 14px; align-items: flex-start; background: #FFFFFF; border: 1px solid var(--line); border-radius: 16px; padding: 16px 18px; }
.value b { display: block; font-size: 15px; }
.value span { font-size: 14px; color: var(--muted); }

/* contact */
.contact { display: flex; flex-wrap: wrap; gap: 40px; align-items: flex-start; }
.contact-info { flex: 1 1 300px; display: flex; flex-direction: column; gap: 18px; }
.contact-info .item { display: flex; gap: 12px; align-items: center; font-size: 15px; }
.form { flex: 2 1 480px; background: #FFFFFF; border: 1px solid var(--line); border-radius: 22px; padding: 28px; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.form .full { grid-column: 1 / -1; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-size: 13.5px; font-weight: 600; }
.input { height: 48px; padding: 0 14px; width: 100%; border: 1.5px solid #D9DDE5; border-radius: 12px; background: #FFFFFF; font-size: 15px; }
textarea.input { height: auto; min-height: 110px; padding: 12px 14px; resize: vertical; }
.input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px rgba(58, 63, 216, 0.15); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 13.5px; color: var(--muted); }
.check input { width: 20px; height: 20px; margin: 1px 0 0; accent-color: var(--accent); flex-shrink: 0; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.msg { border-radius: 12px; padding: 12px 14px; font-size: 14.5px; }
.msg.ok { background: var(--ok-soft); color: var(--ok); }
.msg.err { background: #FEECEB; color: var(--danger); }

/* faq */
.faq { display: flex; flex-direction: column; gap: 12px; max-width: 820px; }
.faq details { background: #FFFFFF; border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.faq summary { font-weight: 700; font-size: 16px; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; font-size: 22px; line-height: 1; color: var(--accent); }
.faq details[open] summary::after { content: '–'; }
.faq p { margin-top: 10px; color: var(--muted); font-size: 15px; }

.footer { background: var(--ink); color: #C9CCF7; padding: 40px 0; font-size: 14px; }
.footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px; align-items: center; }
.footer a { color: #FFFFFF; text-decoration: none; }
.footer .links { display: flex; flex-wrap: wrap; gap: 20px; }

@media (max-width: 860px) {
  .menu { display: none; }
  .section { padding: 64px 0; }
  .hero { padding: 44px 0 64px; }
}
@media (max-width: 560px) {
  .header-actions .btn-outline { display: none; }
  .form { grid-template-columns: minmax(0, 1fr); padding: 20px; }
  .hero-cta .btn { flex: 1 1 100%; }
}