:root{--ink:#0b1f1a;--text:#33433f;--muted:#5f6f6b;--line:#dfe7e4;--bg:#f6f9f8;--card:#fff;
--brand:#0f766e;--brand-d:#115e59;--brand-l:#e6f4f1;--accent:#f59e0b;--accent-l:#fff7e6;
--r:14px;--sh:0 1px 2px rgba(11,31,26,.06),0 2px 8px rgba(11,31,26,.06);--sh-l:0 24px 60px -24px rgba(11,31,26,.35);
--font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:72px;-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--font);color:var(--text);background:#fff;line-height:1.6;font-size:17px;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}a{color:var(--brand)}
h1,h2,h3{color:var(--ink);line-height:1.15;letter-spacing:-.02em;margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5vw,3.4rem);font-weight:800}h2{font-size:clamp(1.6rem,3.2vw,2.3rem);font-weight:800}h3{font-size:1.12rem;font-weight:700}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:760px}
.eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--brand);margin-bottom:12px}
.lead{font-size:1.15rem;color:var(--muted);max-width:40em}
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:10px;font-weight:700;text-decoration:none;font-size:1rem;border:2px solid var(--brand);background:var(--brand);color:#fff;transition:background .15s,transform .15s;cursor:pointer;line-height:1.2}
.btn:hover{background:var(--brand-d);border-color:var(--brand-d);transform:translateY(-1px)}
.btn-o{background:#fff;color:var(--brand)}.btn-o:hover{background:var(--brand-l);color:var(--brand-d)}
.btn-sm{padding:8px 14px;font-size:.92rem}.btn small{font-weight:600;opacity:.85}
/* nav */
.nav{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--ink);text-decoration:none;font-size:1.12rem}
.links{display:flex;gap:24px}.links a{color:var(--text);text-decoration:none;font-weight:600;font-size:.95rem}.links a:hover{color:var(--brand)}
/* hero */
.hero{background:linear-gradient(180deg,var(--bg),#fff);padding:56px 0 64px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hl{color:var(--brand)}
.offer{margin:26px 0 10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;box-shadow:var(--sh);max-width:520px}
.offer-top{display:flex;align-items:baseline;gap:10px;margin-bottom:14px;flex-wrap:wrap}
.price{font-size:2.4rem;font-weight:800;color:var(--ink);letter-spacing:-.03em}.price-note{color:var(--muted);font-weight:600}
.buy-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.fine{font-size:.88rem;color:var(--muted);margin:10px 0 0}
.ticks{list-style:none;padding:0;margin:16px 0 0;display:flex;flex-wrap:wrap;gap:8px 20px}
.ticks li{position:relative;padding-left:24px;font-weight:600;font-size:.95rem}
.ticks li:before{content:"";position:absolute;left:0;top:.28em;width:16px;height:16px;border-radius:50%;background:var(--brand-l) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%230f766e' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/12px no-repeat}
.preview{position:relative;display:block;text-decoration:none}
.paper{background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:var(--sh-l);overflow:hidden;transform:rotate(1.2deg);transition:transform .2s}
.preview:hover .paper{transform:rotate(0)}
.paper img{width:100%;height:auto}
.paper-bar{display:flex;gap:6px;padding:9px 12px;border-bottom:1px solid var(--line);background:var(--bg)}.paper-bar i{width:9px;height:9px;border-radius:50%;background:#cbd5d2}
.preview-tag{position:absolute;left:-12px;bottom:26px;background:var(--ink);color:#fff;border-radius:10px;padding:10px 14px;font-weight:700;font-size:.9rem;box-shadow:var(--sh)}
.preview-tag span{display:block;font-weight:500;font-size:.8rem;opacity:.8}
/* sections */
.sec{padding:76px 0}.alt{background:var(--bg);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.center{text-align:center}.center .lead{margin:0 auto}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh)}
.step:before{counter-increment:s;content:counter(s);display:inline-grid;place-items:center;width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;font-weight:800;margin-bottom:14px}
.step p{margin:0;color:var(--muted)}
.inc{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:36px}
.inc-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--sh)}
.inc-card h3{display:flex;align-items:center;gap:10px}.inc-card h3 b{display:inline-grid;place-items:center;width:30px;height:30px;border-radius:8px;background:var(--brand-l);color:var(--brand);font-size:.9rem}
.inc-card ul{margin:8px 0 0;padding-left:20px;color:var(--muted)}.inc-card li{margin:3px 0}
.sample-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:center}
.sample-grid .paper{transform:none}
.note{background:var(--accent-l);border:1px solid #fde3a7;border-radius:10px;padding:12px 14px;font-size:.93rem;margin:16px 0}
/* faq */
.faq{margin-top:30px;border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;font-weight:700;color:var(--ink);padding:16px 36px 16px 0;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";position:absolute;right:6px;top:12px;font-size:1.4rem;color:var(--brand);font-weight:600}
.faq details[open] summary:after{content:"–"}
.faq details p{margin:0 0 16px;color:var(--muted)}
/* cta + footer */
.cta{background:var(--ink);color:#d7e3e0;padding:60px 0}.cta h2{color:#fff}
.cta-in{display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.cta .btn-o{background:transparent;color:#fff;border-color:#4b635d}.cta .btn-o:hover{background:#17332c}
.cta-btns{display:flex;gap:10px;flex-wrap:wrap}
.foot{background:#06140f;color:#9fb2ad;padding:44px 0 26px;font-size:.93rem}
.foot a{color:#cfe0db;text-decoration:none}.foot a:hover{text-decoration:underline}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:28px}
.foot h4{color:#fff;margin:0 0 10px;font-size:.95rem}.foot-col a{display:block;margin:5px 0}
.foot .brand{color:#fff;margin-bottom:10px}
.foot-bot{border-top:1px solid #1d332d;margin-top:28px;padding-top:16px;font-size:.85rem}
/* pages */
.page-hero{background:var(--bg);border-bottom:1px solid var(--line);padding:44px 0 34px}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.5rem)}
.prose{max-width:760px;padding:40px 0 70px}.prose p{margin:0 0 1.1em}
.thanks-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:28px;margin:40px 0 70px;max-width:680px}
.thanks-card .big{display:inline-grid;place-items:center;width:48px;height:48px;border-radius:50%;background:var(--brand-l);color:var(--brand);font-size:1.5rem;font-weight:800;margin-bottom:12px}
/* responsive */
@media (max-width:900px){.hero-grid,.sample-grid{grid-template-columns:1fr;gap:36px}.links{display:none}
 .steps{grid-template-columns:1fr}.inc{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr 1fr}.foot-grid>div:first-child{grid-column:1/-1}
 .preview{max-width:420px;margin:0 auto}.paper{transform:none}.preview-tag{left:8px}.sec{padding:56px 0}}
@media (max-width:480px){body{font-size:16px}.hero{padding:34px 0 44px}.buy-row{grid-template-columns:1fr}.offer{padding:16px}
 .nav .btn-sm{padding:7px 11px;font-size:.85rem}.cta-btns{flex-direction:column;width:100%}.cta-btns .btn{width:100%}.sample-grid>.preview{display:none}.foot-grid{grid-template-columns:1fr}}