:root{
  --bg:#fbfbfc; --bg-alt:#f2f4f8; --ink:#171a20; --muted:#5b6270; --line:#dfe3ea;
  --accent:#1f5fbf; --accent-2:#174a96; --ok:#1f9d55; --mid:#d19a12; --bad:#d5443a;
  --card:#ffffff; --radius:12px; --shadow:0 8px 30px rgba(20,30,60,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif}
a{color:var(--accent);text-decoration:none}
h1,h2,h3{margin:0 0 .5em;line-height:1.2;letter-spacing:-.01em}
h1{font-size:clamp(28px,4vw,44px)}
h2{font-size:clamp(24px,3vw,32px);margin-bottom:12px}
h3{font-size:18px}
p{margin:0 0 1em}
.small{font-size:14px;color:var(--muted)}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}
.wrap--narrow{max-width:800px}
.sub{color:var(--muted);max-width:720px;margin-bottom:28px}

/* nav */
.nav{position:sticky;top:0;z-index:10;background:rgba(251,251,252,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav__in{display:flex;align-items:center;justify-content:space-between;height:60px;gap:16px}
.brand{font-weight:700;color:var(--ink);display:inline-flex;align-items:center;gap:8px;font-size:18px}
.brand__dot{width:12px;height:12px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 4px rgba(31,95,191,.18)}
.nav__links{display:flex;gap:22px}
.nav__links a{color:var(--muted);font-size:15px}
.nav__links a:hover{color:var(--ink)}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 22px;border-radius:10px;font-weight:600;border:1px solid transparent;cursor:pointer;font-size:16px;transition:.15s}
.btn--primary{background:var(--accent);color:#fff}
.btn--primary:hover{background:var(--accent-2)}
.btn--ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn--ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn--sm{padding:9px 16px;font-size:14px}
.btn--block{width:100%}

/* hero */
.hero{padding:64px 0 56px;background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.hero__in{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center}
.eyebrow{color:var(--accent);font-weight:600;font-size:14px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.lead{font-size:18px;color:var(--muted);max-width:560px}
.hero__cta{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0}
.hero__facts{list-style:none;padding:0;margin:0;display:flex;gap:28px;flex-wrap:wrap;color:var(--muted);font-size:15px}
.hero__facts b{color:var(--ink);font-size:20px;margin-right:6px}

.demo{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px}
.demo__head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.demo__title{font-weight:700}
.demo__sub{font-size:13px;color:var(--muted)}
.score{background:#e8f4ec;color:var(--ok);border-radius:10px;padding:6px 10px;font-weight:700;font-size:22px;line-height:1}
.score small{font-size:12px;opacity:.7;margin-left:2px}
.demo__summary{font-size:14px;margin:12px 0;color:#2b3038}
.demo__check .row{display:flex;align-items:center;gap:10px;font-size:14px;padding:6px 0;border-top:1px solid #eef0f4}
.demo__check .row b{margin-left:auto;font-variant-numeric:tabular-nums}
.demo__check i{width:9px;height:9px;border-radius:50%;flex:none}
i.ok{background:var(--ok)} i.mid{background:var(--mid)} i.bad{background:var(--bad)}
.demo__rec{margin-top:12px;font-size:13px;background:#fff8e6;border-radius:8px;padding:10px 12px;color:#4a3d12}
.demo__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:12px}
.demo__stats div{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px}
.demo__stats small{display:block;color:var(--muted);font-size:12px}
.demo__stats b{font-size:20px}
.demo__stats .warn{color:var(--bad)} .demo__stats .good{color:var(--ok)}

/* sections */
.sec{padding:64px 0}
.sec--alt{background:var(--bg-alt)}
.sec--dark{background:#141a26;color:#fff}
.sec--dark .sub{color:#aab3c5}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step span{display:inline-flex;width:34px;height:34px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;font-weight:700;margin-bottom:12px}
.step p{color:var(--muted);font-size:15px;margin:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px}
.card p{color:var(--muted);font-size:15px;margin:0}
.card table{width:100%;border-collapse:collapse;font-size:15px;margin-bottom:10px}
.card td{padding:8px 0;border-bottom:1px solid #eef0f4;vertical-align:top}
.card td:last-child{text-align:right;white-space:nowrap}
.logos{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px}
.logos span{background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-weight:600;font-size:15px}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.plan{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px 20px;position:relative;display:flex;flex-direction:column}
.plan--hot{border:2px solid var(--accent);box-shadow:var(--shadow)}
.plan__badge{position:absolute;top:-12px;left:20px;background:var(--accent);color:#fff;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px}
.plan__name{font-weight:700;font-size:18px}
.plan__price{font-size:28px;font-weight:700;margin:6px 0 0;letter-spacing:-.02em;white-space:nowrap}
.plan__price small{font-size:14px;font-weight:400;color:var(--muted)}
.plan__for{color:var(--muted);font-size:14px;margin:4px 0 12px;min-height:42px}
.plan ul{margin:0 0 14px;padding-left:18px;font-size:15px}
.plan li{margin:4px 0}
.plan__over{font-size:14px;color:var(--muted);border-top:1px dashed var(--line);padding-top:10px;margin-top:auto;margin-bottom:14px}
.pricing__extra{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.pilot{margin-top:20px;background:#e8f0fc;border-radius:var(--radius);padding:20px 24px;display:flex;justify-content:space-between;align-items:center;gap:20px}

/* faq */
details{border-bottom:1px solid var(--line);padding:14px 0}
summary{cursor:pointer;font-weight:600;font-size:17px;list-style:none;display:flex;justify-content:space-between}
summary::after{content:"+";color:var(--accent);font-weight:400}
details[open] summary::after{content:"–"}
details p{margin:10px 0 0;color:var(--muted)}

/* form */
.form{background:#1c2434;border:1px solid #2a3446;border-radius:var(--radius);padding:24px}
.form label{display:block;font-size:14px;color:#aab3c5;margin-bottom:14px}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:6px;padding:11px 12px;border-radius:8px;border:1px solid #38445a;background:#111826;color:#fff;font:inherit}
.form input:focus,.form select:focus,.form textarea:focus{outline:none;border-color:var(--accent)}
.form input.err,.form select.err{border-color:var(--bad)}
.form__row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}
.form__foot{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:4px}
.form__note{font-size:13px;color:#8b95a8;max-width:460px}
.form__msg{margin-top:16px;padding:12px 14px;border-radius:8px;font-size:15px}
.form__msg--ok{background:#163b28;color:#a9e6c2}
.form__msg--err{background:#4a1f1c;color:#f5b5ae}

/* footer */
.foot{border-top:1px solid var(--line);padding:24px 0}
.foot__in{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;flex-wrap:wrap}
.foot__contacts a{display:block;color:var(--ink)}
.foot__contacts a:hover{color:var(--accent)}
.foot__legal{text-align:right}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12px}
.sec--dark .sub a{color:#8fb4ee}
@media (max-width:600px){.foot__legal{text-align:left}}

@media (max-width:960px){
  .hero__in{grid-template-columns:1fr}
  .steps,.plans{grid-template-columns:repeat(2,1fr)}
  .grid3{grid-template-columns:repeat(2,1fr)}
  .nav__links{display:none}
}
@media (max-width:600px){
  .steps,.plans,.grid3,.pricing__extra,.form__row{grid-template-columns:1fr}
  .pilot{flex-direction:column;align-items:flex-start}
  .hero{padding:40px 0}
  .sec{padding:44px 0}
  .plans{margin-top:8px}
}