:root {
  --brand: #3b6fe0;
  --brand-ink: #ffffff;
  --brand-soft: #eaf0fd;
  --bg: #f7f7f5;
  --card: #ffffff;
  --ink: #1b1d22;
  --muted: #676b75;
  --line: #e4e4e0;
  --radius: 16px;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
#app { max-width: 480px; margin: 0 auto; min-height: 100vh; min-height: 100dvh; padding: 0 16px 32px; display: flex; flex-direction: column; }

/* header */
.top { display: flex; align-items: center; gap: 12px; padding: 14px 0 6px; min-height: 52px; }
.back { border: 0; background: none; font-size: 22px; line-height: 1; padding: 6px 8px 6px 0; color: var(--ink); cursor: pointer; }
.back[hidden] { visibility: hidden; display: block; }
.brand { font-weight: 700; letter-spacing: -0.01em; }
.bar { flex: 1; height: 6px; background: var(--line); border-radius: 99px; overflow: hidden; }
.bar > i { display: block; height: 100%; background: var(--brand); border-radius: 99px; transition: width .35s ease; }

.step { flex: 1; display: flex; flex-direction: column; animation: in .28s ease; }
@keyframes in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

h1 { font-size: 28px; line-height: 1.15; letter-spacing: -0.02em; margin: 12px 0 10px; }
h2 { font-size: 23px; line-height: 1.2; letter-spacing: -0.015em; margin: 14px 0 8px; }
.sub { color: var(--muted); margin: 0 0 18px; }

/* intro */
.hero-visual { font-size: 64px; text-align: center; background: var(--brand-soft); border-radius: 24px; padding: 28px 0; margin: 8px 0 4px; }
.badge { display: inline-block; font-size: 13px; font-weight: 600; color: var(--brand); background: var(--brand-soft); border-radius: 99px; padding: 5px 12px; margin-top: 14px; }
.bullets { list-style: none; padding: 0; margin: 4px 0 22px; }
.bullets li { padding: 7px 0 7px 30px; position: relative; }
.bullets li::before { content: "✓"; position: absolute; left: 0; top: 6px; width: 22px; height: 22px; border-radius: 50%; background: var(--brand-soft); color: var(--brand); font-size: 13px; font-weight: 700; display: grid; place-items: center; }
.fine { font-size: 13px; color: var(--muted); text-align: center; margin: 10px 0 0; }

/* options */
.opts { display: flex; flex-direction: column; gap: 10px; margin-bottom: 16px; }
.opt { display: flex; align-items: center; gap: 12px; width: 100%; text-align: left; font: inherit; color: var(--ink); background: var(--card); border: 1.5px solid var(--line); border-radius: var(--radius); padding: 15px 16px; cursor: pointer; transition: border-color .15s, background .15s; }
.opt:hover { border-color: var(--brand); }
.opt.on { border-color: var(--brand); background: var(--brand-soft); }
.opt .em { font-size: 22px; width: 28px; text-align: center; flex: none; }
.opt .lb { flex: 1; font-weight: 500; }
.opt .ck { width: 22px; height: 22px; border-radius: 6px; border: 1.5px solid var(--line); flex: none; display: grid; place-items: center; font-size: 13px; color: var(--brand-ink); }
.opt.on .ck { background: var(--brand); border-color: var(--brand); }

/* inputs */
.field { width: 100%; font: inherit; font-size: 18px; padding: 16px; border: 1.5px solid var(--line); border-radius: var(--radius); background: var(--card); color: var(--ink); outline: none; }
.field:focus { border-color: var(--brand); }
.hint { font-size: 14px; color: var(--muted); margin: 8px 2px 0; min-height: 20px; }
.hint button { font: inherit; color: var(--brand); background: none; border: 0; padding: 0; text-decoration: underline; cursor: pointer; }
.err { color: #c0392b; }

/* buttons */
.spacer { flex: 1; min-height: 16px; }
.cta { display: block; width: 100%; font: inherit; font-size: 17px; font-weight: 700; color: var(--brand-ink); background: var(--brand); border: 0; border-radius: var(--radius); padding: 17px; cursor: pointer; box-shadow: 0 6px 18px -8px var(--brand); transition: transform .1s, opacity .15s; }
.cta:active { transform: scale(.98); }
.cta:disabled { opacity: .4; cursor: default; box-shadow: none; }
.sticky { position: sticky; bottom: 0; padding: 12px 0 4px; background: linear-gradient(to top, var(--bg) 70%, transparent); }

/* info */
.info-card { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 22px; margin: 10px 0 18px; }
.info-card .big { font-size: 44px; margin-bottom: 6px; }
.info-card p { margin: 0 0 10px; }
.info-card .src { font-size: 12px; color: var(--muted); margin: 0; }

/* loading */
.load { text-align: center; padding-top: 40px; }
.ring { width: 150px; height: 150px; margin: 24px auto; position: relative; }
.ring svg { transform: rotate(-90deg); }
.ring b { position: absolute; inset: 0; display: grid; place-items: center; font-size: 32px; }
.load-msg { color: var(--muted); min-height: 24px; }
.checks { list-style: none; padding: 0; margin: 24px auto 0; text-align: left; max-width: 300px; }
.checks li { padding: 6px 0; color: var(--muted); transition: color .3s; }
.checks li.done { color: var(--ink); }
.checks li.done::before { content: "✓ "; color: var(--brand); font-weight: 700; }
.checks li:not(.done)::before { content: "○ "; }

/* result */
.chart { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 16px 16px 10px; margin: 8px 0 16px; }
.chart svg { width: 100%; height: auto; display: block; }
.chart .cap { font-size: 13px; color: var(--muted); margin: 6px 0 0; }
.plan-list { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 6px 16px; margin-bottom: 16px; }
.plan-list div { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.plan-list div:last-child { border-bottom: 0; }
.plan-list .wk { font-weight: 700; color: var(--brand); flex: none; width: 64px; font-size: 14px; padding-top: 1px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 16px; }
.tags span { font-size: 13px; background: var(--brand-soft); color: var(--brand); border-radius: 99px; padding: 5px 11px; font-weight: 600; }

/* paywall */
.plans { display: flex; flex-direction: column; gap: 10px; margin: 6px 0 16px; }
.plan { position: relative; display: flex; align-items: center; gap: 12px; text-align: left; font: inherit; color: var(--ink); background: var(--card); border: 2px solid var(--line); border-radius: var(--radius); padding: 16px; cursor: pointer; }
.plan.on { border-color: var(--brand); background: var(--brand-soft); }
.plan .dot { width: 22px; height: 22px; border-radius: 50%; border: 2px solid var(--line); flex: none; }
.plan.on .dot { border: 7px solid var(--brand); }
.plan .nm { flex: 1; }
.plan .nm b { display: block; }
.plan .nm s { color: var(--muted); font-size: 14px; }
.plan .nm small { color: var(--muted); font-size: 14px; }
.plan .pd { text-align: right; }
.plan .pd b { font-size: 20px; display: block; }
.plan .pd small { color: var(--muted); font-size: 12px; }
.plan .flag { position: absolute; top: -11px; right: 14px; background: var(--brand); color: var(--brand-ink); font-size: 11px; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; padding: 3px 9px; border-radius: 99px; }
.gets { background: var(--card); border: 1px solid var(--line); border-radius: 20px; padding: 14px 18px 4px; margin-bottom: 14px; }
.gets h3 { font-size: 16px; margin: 0 0 4px; }
.terms { font-size: 12px; color: var(--muted); text-align: center; margin: 10px 0 0; }

/* waitlist */
.done-box { text-align: center; padding-top: 30px; }
.done-box .big { font-size: 64px; }
.pill { display: inline-block; background: var(--brand-soft); color: var(--brand); font-weight: 700; padding: 8px 16px; border-radius: 99px; margin: 8px 0 18px; }

footer { margin-top: 28px; text-align: center; font-size: 12px; color: var(--muted); }
footer a { color: var(--muted); margin: 0 6px; }