/* Helixtop marketing site. White + red, system fonts, no external requests -
   the whole page must render on a slow Indian mobile connection. */
:root{
  --red:#E4002B; --red-dark:#C40025; --ink:#12151A; --body:#4A5568;
  --muted:#7A8699; --line:#E6E9EF; --bg:#FFFFFF; --soft:#F7F8FB;
  --radius:14px; --max:1120px;
  --shadow:0 1px 2px rgba(16,24,40,.04), 0 12px 32px -8px rgba(16,24,40,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font:16px/1.65 -apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
a{color:var(--red);text-decoration:none}
a:hover{text-decoration:underline}
img{max-width:100%;display:block}

/* ---------- header ---------- */
header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;gap:28px;height:66px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink)}
.brand:hover{text-decoration:none}
.brand b{font-size:21px;font-weight:680;letter-spacing:-.5px}
.brand b span{color:var(--red)}
.nav nav{display:flex;gap:22px;margin-left:auto}
.nav nav a{color:var(--body);font-size:15px;font-weight:500}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--red);color:#fff;
  font-weight:600;padding:11px 20px;border-radius:10px;font-size:15px;border:0;cursor:pointer}
.btn:hover{background:var(--red-dark);text-decoration:none;color:#fff}
.btn.ghost{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.ghost:hover{border-color:#C9CED8;background:var(--soft)}
.btn.lg{padding:15px 30px;font-size:16px}
@media(max-width:820px){.nav nav{display:none}}

/* ---------- hero ---------- */
.hero{padding:76px 0 0;background:
  radial-gradient(1100px 460px at 78% -8%, #FFF0F3 0%, rgba(255,255,255,0) 62%)}
.eyebrow{display:inline-flex;align-items:center;gap:8px;background:#FFF0F3;color:var(--red);
  font-size:13px;font-weight:650;padding:7px 14px;border-radius:999px;letter-spacing:.01em}
h1{font-size:clamp(36px,5.4vw,60px);line-height:1.06;letter-spacing:-1.8px;
  font-weight:700;margin:22px 0 20px;max-width:15ch}
h1 em{font-style:normal;color:var(--red)}
.lede{font-size:clamp(17px,2.1vw,20px);color:var(--body);max-width:56ch;margin:0 0 30px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.note{color:var(--muted);font-size:14px;margin-top:14px}
.shot{margin-top:56px;border-radius:var(--radius);overflow:hidden;
  box-shadow:var(--shadow);border:1px solid var(--line)}
.shot img{width:100%}

/* ---------- generic sections ---------- */
section{padding:84px 0}
.sec-head{max-width:640px;margin-bottom:44px}
h2{font-size:clamp(27px,3.4vw,38px);line-height:1.15;letter-spacing:-1px;font-weight:700;margin:0 0 14px}
.sec-head p{color:var(--body);font-size:17px;margin:0}
.kicker{color:var(--red);font-weight:650;font-size:13px;letter-spacing:.08em;
  text-transform:uppercase;margin:0 0 10px}

/* ---------- feature rows ---------- */
.row{display:grid;grid-template-columns:1fr 1.15fr;gap:56px;align-items:center;margin-bottom:88px}
.row:nth-child(even) .row-media{order:-1}
.row h3{font-size:24px;letter-spacing:-.5px;margin:0 0 12px;font-weight:670}
.row p{color:var(--body);margin:0 0 16px}
.ticks{list-style:none;margin:0;padding:0}
.ticks li{display:flex;gap:10px;align-items:flex-start;margin-bottom:9px;color:var(--body)}
.ticks li::before{content:"";flex:none;width:18px;height:18px;margin-top:3px;border-radius:50%;
  background:var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/11px no-repeat}
.row-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
@media(max-width:880px){.row{grid-template-columns:1fr;gap:26px;margin-bottom:56px}
  .row:nth-child(even) .row-media{order:0}}

/* ---------- apps strip ---------- */
.apps{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.applist{display:grid;gap:10px 22px;grid-template-columns:repeat(auto-fill,minmax(165px,1fr));
  list-style:none;margin:0;padding:0}
.applist li{display:flex;align-items:center;gap:9px;color:var(--ink);font-size:15px}
.applist li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--red);flex:none}

/* ---------- pricing ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.plan{border:1px solid var(--line);border-radius:var(--radius);padding:30px;background:#fff}
.plan.featured{border-color:var(--red);box-shadow:0 0 0 3px #FFE8ED;position:relative}
.tag{position:absolute;top:-12px;left:30px;background:var(--red);color:#fff;font-size:12px;
  font-weight:650;padding:4px 11px;border-radius:999px}
.plan h3{margin:0 0 6px;font-size:19px;font-weight:670}
.plan .who{color:var(--muted);font-size:14px;margin:0 0 18px;min-height:40px}
.price{font-size:38px;font-weight:700;letter-spacing:-1.4px}
.price small{font-size:14px;font-weight:500;color:var(--muted);letter-spacing:0}
.was{color:var(--muted);font-size:14px;margin:6px 0 20px}
.was s{opacity:.75}
.plan .btn{width:100%;justify-content:center;margin-bottom:20px}
.plan ul{list-style:none;margin:0;padding:0}
.plan li{display:flex;gap:9px;align-items:flex-start;color:var(--body);font-size:15px;margin-bottom:9px}
.plan li::before{content:"";flex:none;width:16px;height:16px;margin-top:4px;border-radius:50%;
  background:#FFE8ED url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23E4002B' stroke-width='3.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center/10px no-repeat}
@media(max-width:880px){.plans{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq{max-width:760px}
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:620;font-size:17px;list-style:none;display:flex;
  justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--red);font-size:22px;font-weight:400;flex:none}
details[open] summary::after{content:"−"}
details p{color:var(--body);margin:12px 0 0}

/* ---------- cta band ---------- */
.band{background:var(--ink);color:#fff;text-align:center}
.band h2{color:#fff}
.band p{color:#B9C0CC;max-width:52ch;margin:0 auto 28px}
.band .btn.ghost{background:transparent;color:#fff;border-color:#3A424F}
.band .btn.ghost:hover{background:#1B2029}

/* ---------- footer ---------- */
footer{border-top:1px solid var(--line);padding:52px 0 40px;color:var(--muted);font-size:14px}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;margin-bottom:34px}
footer h4{color:var(--ink);font-size:14px;margin:0 0 12px;font-weight:640}
footer ul{list-style:none;margin:0;padding:0}
footer li{margin-bottom:8px}
footer a{color:var(--muted)}
.fbot{border-top:1px solid var(--line);padding-top:22px;display:flex;
  justify-content:space-between;gap:14px;flex-wrap:wrap}
@media(max-width:820px){.fgrid{grid-template-columns:1fr 1fr}}

/* ---------- legal pages ---------- */
.legal{max-width:760px;padding:56px 0 84px}
.legal h1{font-size:36px;max-width:none;margin-bottom:10px}
.legal .updated{color:var(--muted);font-size:14px;margin-bottom:34px}
.legal h2{font-size:21px;margin:34px 0 10px}
.legal p,.legal li{color:var(--body)}
.legal ul{padding-left:20px}
.callout{background:var(--soft);border:1px solid var(--line);border-left:3px solid var(--red);
  border-radius:8px;padding:16px 18px;margin:22px 0}
.callout p{margin:0}