:root{
  --ink:#141414;
  --muted:#6c706d;
  --paper:#f7f6f1;
  --card:#ffffff;
  --orange:#ff4500;
  --green:#556b2f;
  --green2:#7e9356;
  --blue:#76a8ce;
  --line:#dedfd9;
  --shadow:0 14px 40px rgba(17,17,17,.08);
}
*{box-sizing:border-box}
html{background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
body{margin:0;min-height:100vh;background:linear-gradient(180deg,#f7f6f1 0,#f3f4ef 100%)}
button,input,select{font:inherit}
button{cursor:pointer}
.prototype-banner{position:sticky;top:0;z-index:20;background:var(--ink);color:white;text-align:center;padding:8px 12px;font-size:11px;font-weight:800;letter-spacing:.08em}
.topbar{position:sticky;top:31px;z-index:15;display:flex;align-items:center;justify-content:space-between;padding:12px 16px;background:rgba(247,246,241,.94);backdrop-filter:blur(12px);border-bottom:1px solid rgba(20,20,20,.08)}
.brand{display:flex;align-items:center;gap:9px;border:0;background:none;padding:0;text-align:left;color:var(--ink)}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:9px;background:var(--ink);color:var(--orange);font-weight:900;font-size:22px;position:relative;overflow:hidden}
.brand-mark:after{content:"";position:absolute;width:30px;height:12px;border:3px solid var(--green2);border-color:var(--green2) transparent transparent transparent;border-radius:50%;left:4px;top:24px;transform:rotate(-7deg)}
.brand b{display:block;font-size:14px;letter-spacing:.04em}.brand small{display:block;font-size:8px;letter-spacing:.09em;color:#6a6d69;margin-top:1px}
.text-btn{border:0;background:none;color:var(--muted);font-weight:700;font-size:13px;padding:8px}
#app{max-width:860px;margin:0 auto;padding:0 12px 40px}
.step{display:none}.step.is-active{display:block;animation:fade .22s ease}
@keyframes fade{from{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}
.hero{margin:18px auto 0;border-radius:28px;overflow:hidden;background:var(--ink);color:white;box-shadow:var(--shadow);min-height:calc(100vh - 120px);display:flex;flex-direction:column}
.hero-landscape{height:210px;position:relative;overflow:hidden;background:linear-gradient(180deg,#9fc6df 0,#d8e4da 78%)}
.hero-landscape:before{content:"";position:absolute;width:95px;height:95px;border-radius:50%;background:#fff3c4;right:36px;top:28px;box-shadow:0 0 60px rgba(255,244,185,.75)}
.hero-landscape i{position:absolute;left:-8%;right:-8%;height:150px;border-radius:50% 50% 0 0}
.hero-landscape i:nth-child(1){bottom:-88px;background:#7e9356;transform:rotate(-3deg)}
.hero-landscape i:nth-child(2){bottom:-112px;background:#556b2f;left:20%;transform:rotate(4deg)}
.hero-landscape i:nth-child(3){bottom:-132px;background:#2f4223;left:-24%;transform:rotate(1deg)}
.hero-copy{padding:28px 24px 30px;display:flex;flex-direction:column;gap:16px}
.pill{align-self:flex-start;background:rgba(255,69,0,.14);border:1px solid rgba(255,69,0,.5);color:#ff8458;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:900;letter-spacing:.08em}
h1,h2,h3,p{margin-top:0}
h1{font-size:34px;line-height:1.02;letter-spacing:-.035em;margin-bottom:0}.hero h1 em{font-style:normal;color:#9fba7a}
.hero p{color:#d7d8d3;line-height:1.55;margin-bottom:0}
.principles{display:grid;gap:8px;color:#f1f1ed;font-size:13px}.principles span{display:flex;gap:8px;align-items:center}
.primary,.secondary{border-radius:14px;min-height:52px;padding:0 18px;font-weight:850;border:1px solid transparent;display:inline-flex;align-items:center;justify-content:center;gap:12px}
.primary{background:var(--orange);color:#fff;box-shadow:0 8px 24px rgba(255,69,0,.18)}
.primary:hover{filter:brightness(.98)}.secondary{background:#fff;color:var(--ink);border-color:var(--line)}
.hero .primary{margin-top:6px;width:100%}.muted{color:#aeb1aa;line-height:1.4}
.panel{background:var(--card);border:1px solid #e5e5df;border-radius:24px;padding:22px 18px 18px;margin:18px auto;box-shadow:var(--shadow)}
.wide-panel{max-width:820px}
.progress{height:4px;border-radius:9px;background:#ecece7;overflow:hidden;margin-bottom:24px}.progress span{display:block;height:100%;width:var(--w);background:linear-gradient(90deg,var(--green),var(--orange));border-radius:9px}
.eyebrow{font-size:11px;font-weight:900;letter-spacing:.1em;color:var(--green);margin-bottom:8px}
h2{font-size:29px;line-height:1.06;letter-spacing:-.03em;margin-bottom:10px}.lead{color:var(--muted);line-height:1.5;margin-bottom:20px}
.service-grid{display:grid;grid-template-columns:1fr;gap:10px}
.service-card,.signal-card,.option-card{width:100%;border:1px solid var(--line);background:#fff;color:var(--ink);border-radius:16px;text-align:left;padding:15px;transition:.16s ease}
.service-card{display:grid;grid-template-columns:44px 1fr 28px;gap:12px;align-items:center}.service-card:hover,.signal-card:hover,.option-card:hover{border-color:#b9bbae}.service-card.selected,.signal-card.selected,.option-card.selected{border-color:var(--green);background:#f5f8f0;box-shadow:inset 0 0 0 1px var(--green)}
.service-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;background:#f1f2ed;font-size:22px}.service-card b,.signal-card b{display:block;font-size:15px}.service-card small,.signal-card small{display:block;color:var(--muted);line-height:1.35;margin-top:3px}.check{width:24px;height:24px;border:1px solid #cbcfc4;border-radius:50%;display:grid;place-items:center;font-weight:900;color:#fff}.selected .check{background:var(--green);border-color:var(--green)}
.bottom-actions{position:sticky;bottom:0;z-index:10;margin:24px -6px -6px;padding:12px 6px 6px;background:linear-gradient(180deg,rgba(255,255,255,0),#fff 24%);display:grid;grid-template-columns:auto 1fr;gap:10px}.bottom-actions .primary{width:100%}
.question-block{border-top:1px solid #ecece7;padding-top:18px;margin-top:18px}.question-block h3{font-size:17px;margin-bottom:10px}.question-subtitle{color:var(--muted);font-size:13px;margin-bottom:10px}
.option-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}.option-card{padding:12px}.option-card b{display:block;font-size:13px}.option-card small{font-size:11px;color:var(--muted);display:block;margin-top:3px;line-height:1.25}
.select-row{display:grid;grid-template-columns:1fr;gap:8px}.select-field{display:grid;gap:6px}.select-field label{font-size:12px;font-weight:800;color:#565a55}.select-field select{appearance:none;width:100%;border:1px solid var(--line);border-radius:13px;background:#fff;padding:13px 38px 13px 13px;color:var(--ink);background-image:linear-gradient(45deg,transparent 50%,#666 50%),linear-gradient(135deg,#666 50%,transparent 50%);background-position:calc(100% - 18px) 17px,calc(100% - 12px) 17px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.info-callout,.trust-card,.engine-note,.simulation-warning{border-radius:15px;padding:14px 15px;font-size:13px;line-height:1.48;margin-top:18px}.info-callout{background:#eef4f7;border:1px solid #d2e1e8}.trust-card{background:#f4f6ef;border:1px solid #dce4cf}.trust-card p{margin:5px 0 0;color:var(--muted)}.engine-note{background:#fff8ef;border:1px solid #f0d5b5;color:#714819}.simulation-warning{background:#fff3ef;border:1px solid #f1c4b4;color:#7d2f17}
.package-explainer summary{display:flex;align-items:center;justify-content:space-between;gap:12px;cursor:pointer;list-style:none;font-weight:800;color:var(--green)}
.package-explainer summary::-webkit-details-marker{display:none}
.package-explainer summary::after{content:'⌄';font-size:20px;line-height:1;transition:transform .18s}
.package-explainer[open] summary::after{transform:rotate(180deg)}
.package-explainer[open] summary{margin-bottom:10px}
.signal-list{display:grid;gap:10px;margin-top:10px}.signal-card{display:grid;grid-template-columns:1fr 26px;align-items:center}.signal-card.already-included{background:#f7f7f3;border-style:dashed}.signal-card.already-included .check{background:#e8ede0;color:var(--green);border-color:#cdd7bf}.signal-card .signal-helper{font-size:11px;color:var(--green);font-weight:800;margin-top:5px}
.package-list{display:grid;gap:14px}.package-card{border:1px solid var(--line);background:#fff;border-radius:20px;overflow:hidden;transition:.15s ease}.package-card.selected{border-color:var(--orange);box-shadow:0 8px 28px rgba(255,69,0,.12),inset 0 0 0 1px var(--orange)}
.package-card button.package-select{width:100%;border:0;background:none;text-align:left;padding:18px;color:var(--ink)}.package-head{display:flex;gap:12px;align-items:flex-start;justify-content:space-between}.package-title{font-size:19px;font-weight:900;letter-spacing:-.02em}.package-tag{font-size:12px;color:var(--muted);margin-top:4px}.package-price{font-weight:950;font-size:22px;white-space:nowrap}.recommended{display:inline-block;margin-top:8px;background:#edf4e4;color:#405623;border-radius:999px;padding:5px 8px;font-size:10px;font-weight:900;letter-spacing:.04em}.badges{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0 6px}.badge{font-size:10px;font-weight:850;border-radius:999px;padding:5px 8px;background:#f0f1ec;color:#51554f}.badge.green{background:#edf5e5;color:#456026}.badge.orange{background:#fff0ea;color:#a63813}.badge.blue{background:#edf4f8;color:#3b667d}
.package-lines{border-top:1px solid #ecece7;padding:12px 18px 14px;display:grid;gap:9px}.package-line{display:flex;justify-content:space-between;gap:12px;font-size:13px}.package-line span:last-child{font-weight:800;white-space:nowrap}.package-line.included{color:var(--green)}.package-line.pending{color:#8b5a2b}.package-summary{display:flex;justify-content:space-between;gap:14px;border-top:1px solid #ecece7;padding-top:10px;margin-top:2px;font-size:12px;color:var(--muted)}.package-summary b{color:var(--ink)}
.package-card details{border-top:1px solid #ecece7;padding:12px 18px 16px}.package-card summary{cursor:pointer;font-size:12px;font-weight:850;color:var(--green)}.package-card details p{font-size:12px;color:var(--muted);line-height:1.5;margin:8px 0 0}
.review{border:1px solid var(--line);border-radius:22px;overflow:hidden}.review-head{padding:20px;background:var(--ink);color:#fff}.review-head small{color:#bfc2bb}.review-head h3{font-size:22px;margin:5px 0 2px}.review-total{font-size:40px;font-weight:950;letter-spacing:-.04em;margin-top:14px}.review-lines{padding:16px}.review-line{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px solid #efefe9;font-size:13px}.review-line:last-child{border-bottom:0}.review-line strong{white-space:nowrap}.review-totals{background:#f7f7f3;padding:14px 16px;display:grid;gap:7px}.review-total-row{display:flex;justify-content:space-between;font-size:13px}.review-total-row.final{font-size:16px;font-weight:900;padding-top:6px;border-top:1px solid #dcded5}
.trust-note{margin-top:14px;border:1px solid #dfe4d6;border-radius:18px;padding:16px;background:#f7faf3}.trust-note h3{margin-bottom:8px;font-size:17px}.trust-note ul{padding-left:20px;margin:8px 0 0;color:#4f554b;line-height:1.6;font-size:13px}.roof-note{background:#fff7f2;border-color:#f1d0bf}.roof-note strong{color:#9a3716}
@media(min-width:650px){#app{padding:0 20px 60px}.hero{min-height:650px}.hero-landscape{height:260px}.hero-copy{padding:34px 42px 40px}.hero h1{font-size:48px}.panel{padding:30px}.service-grid{grid-template-columns:1fr 1fr}.option-grid{grid-template-columns:repeat(4,1fr)}.select-row{grid-template-columns:repeat(3,1fr)}.package-list{grid-template-columns:repeat(3,1fr);align-items:start}.package-head{display:block}.package-price{margin-top:12px}.package-card button.package-select{padding:18px}.package-lines{padding:12px 14px}.package-card details{padding:12px 14px 16px}.bottom-actions{position:static;margin-top:28px;padding:0;background:none}}