:root{--bg:#0d1330;--card:#151c40;--gold:#ffc83d;--gold2:#e9a800;--txt:#fff;--mut:#c4c9e4;--wa:#2aabee;--wa2:#1d8fc9}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:radial-gradient(circle at 50% -10%,#24306b 0,var(--bg) 55%) fixed;color:var(--txt);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;padding-bottom:88px}
main{max-width:520px;margin:0 auto;padding:0 16px}
img{max-width:100%;height:auto;display:block}
h1,h2{margin:0;line-height:1.2}
.gold{color:var(--gold);white-space:nowrap}

.hero{text-align:center;padding:12px 0 8px}
.hero-img{border-radius:18px;box-shadow:0 10px 40px rgba(0,0,0,.45);margin:0 auto 18px}
.hero h1{font-size:clamp(26px,7.4vw,34px);font-weight:800}
.lead{color:var(--mut);margin:10px 0 18px;font-size:17px}
.hint{color:var(--mut);font-size:14px;margin:10px 0 0}

.btn-wa{display:flex;align-items:center;justify-content:center;gap:10px;width:100%;min-height:56px;padding:14px 18px;border-radius:999px;background:linear-gradient(180deg,var(--wa),var(--wa2));color:#fff;font-weight:800;font-size:18px;text-decoration:none;box-shadow:0 8px 24px rgba(42,171,238,.38);transition:transform .15s}
.btn-wa:active{transform:scale(.98)}
.btn-wa:focus-visible{outline:3px solid var(--gold);outline-offset:3px}
.btn-wa[aria-disabled=true]{filter:grayscale(1);opacity:.6}
.hero .btn-wa{animation:pulse 2.2s ease-in-out infinite}
@keyframes pulse{50%{box-shadow:0 8px 34px rgba(42,171,238,.7)}}
@media (prefers-reduced-motion:reduce){.hero .btn-wa{animation:none}}

.block{background:var(--card);border:1px solid rgba(255,200,61,.18);border-radius:18px;padding:22px 18px;margin:18px 0}
.block h2{font-size:23px;text-align:center;color:var(--gold)}
.sub{color:var(--mut);text-align:center;margin:6px 0 16px}
.sub.small{font-size:14px;margin:14px 0}

.tag{display:inline-block;margin:0 0 14px;padding:6px 14px;border-radius:999px;background:rgba(255,200,61,.12);border:1px solid rgba(255,200,61,.35);color:var(--gold);font-size:13px;font-weight:700;letter-spacing:.2px;line-height:1.4}
.cards{display:grid;gap:12px;margin-top:16px}
.card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);border-radius:14px;padding:16px}
.card h3{margin:0 0 6px;font-size:17px;color:var(--gold);line-height:1.25}
.card p{margin:0;color:var(--mut);font-size:15px;line-height:1.5}

.steps{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:12px}
.steps li{display:flex;gap:14px;align-items:flex-start;background:rgba(255,255,255,.04);border-radius:14px;padding:12px}
.steps b{flex:0 0 38px;height:38px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(180deg,var(--gold),var(--gold2));color:#2a1d00;font-size:19px}
.steps strong{display:block;font-size:17px}
.steps span{color:var(--mut);font-size:15px}

.streak{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;align-items:end}
.tier{border-radius:14px 14px 6px 6px;text-align:center;padding:12px 4px;color:#1d1400;font-weight:800}
.tier em{display:block;font-style:normal;font-size:30px;line-height:1}
.tier span{font-size:14px}
.bronze{background:linear-gradient(180deg,#e6a77a,#a8643b);height:90px}
.silver{background:linear-gradient(180deg,#f1f3f7,#9aa1ad);height:110px}
.goldt{background:linear-gradient(180deg,#ffe07a,#d79b00);height:132px}
.card-img{border-radius:14px;margin-top:8px}

details{background:rgba(255,255,255,.04);border-radius:12px;margin:10px 0;padding:0 14px}
summary{cursor:pointer;padding:14px 0;font-weight:700;list-style:none;position:relative;padding-right:24px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";position:absolute;right:0;top:12px;color:var(--gold);font-size:20px}
details[open] summary::after{content:"−"}
details p{margin:0 0 14px;color:var(--mut)}

.final{text-align:center}
footer{max-width:520px;margin:0 auto;padding:8px 16px 24px;color:#8f96bd;font-size:12px;text-align:center}
footer a{color:#b8bee0}

.sticky{position:fixed;left:0;right:0;bottom:0;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:linear-gradient(0deg,rgba(13,19,48,.97) 60%,rgba(13,19,48,0));z-index:10}
.sticky{transition:transform .25s,opacity .25s}
.sticky.hide{transform:translateY(110%);opacity:0;pointer-events:none}
.sticky .btn-wa{max-width:520px;margin:0 auto;min-height:52px;font-size:17px}