:root{--bg:#f3f5f1;--card:#ffffff;--ink:#1f2a24;--muted:#66736b;--line:#dde3dc;--accent:#3d6b4f;--accent-ink:#fff;--err:#a3332b;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--bg:#121714;--card:#1a211d;--ink:#e6ece7;--muted:#9aa89f;--line:#2a332d;--accent:#7fb592;--accent-ink:#0f1511;--err:#ff8f86;color-scheme:dark}}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:16px/1.6 Georgia,"Iowan Old Style","Palatino Linotype",serif;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
.wrap{max-width:980px;margin:0 auto;padding:0 20px}
header{display:flex;justify-content:space-between;align-items:center;padding:22px 0}
.brand{font-size:22px;font-weight:700;letter-spacing:.01em;color:var(--ink);text-decoration:none}
.brand small{display:block;font:500 12px/1.2 ui-sans-serif,system-ui,sans-serif;color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.btn{font:600 15px ui-sans-serif,system-ui,sans-serif;border-radius:8px;padding:11px 18px;border:1px solid var(--accent);cursor:pointer;text-decoration:none;display:inline-block}
.btn.solid{background:var(--accent);color:var(--accent-ink)}
.btn.line{background:transparent;color:var(--accent)}
.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding:48px 0 56px}
@media (max-width:760px){.hero{grid-template-columns:1fr}}
.hero h1{font-size:clamp(32px,5.5vw,50px);line-height:1.1;margin:0 0 16px;font-weight:700}
.hero p{color:var(--muted);font-size:18px;margin:0 0 26px}
.frames{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.frame{aspect-ratio:4/5;border-radius:10px;background:linear-gradient(160deg,#cfdcc9,#8fae95);border:6px solid var(--card);box-shadow:0 10px 30px rgba(0,0,0,.08)}
.frame:nth-child(2){background:linear-gradient(160deg,#e8d9c4,#b9a07c);transform:translateY(24px)}
.frame:nth-child(3){background:linear-gradient(160deg,#c9d6e3,#8299b0)}
.frame:nth-child(4){background:linear-gradient(160deg,#e6e1d1,#a9a387);transform:translateY(24px)}
.cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px;padding:28px 0 48px;border-top:1px solid var(--line)}
.cols h3{margin:0 0 6px;font-size:19px}.cols p{margin:0;color:var(--muted)}
footer{border-top:1px solid var(--line);padding:24px 0 40px;color:var(--muted);font:14px ui-sans-serif,system-ui,sans-serif;display:flex;gap:18px;flex-wrap:wrap}
footer a{color:var(--muted);text-decoration:none}
.panel{max-width:420px;margin:56px auto;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:30px}
.panel h1{margin:0 0 6px;font-size:28px}.panel p{color:var(--muted);margin:0 0 18px;font-family:ui-sans-serif,system-ui,sans-serif;font-size:15px}
.panel label{display:block;font:600 14px ui-sans-serif,system-ui,sans-serif;margin:12px 0 6px}
.panel input{width:100%;padding:11px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:15px ui-sans-serif,system-ui,sans-serif}
.panel .btn{width:100%;margin-top:18px}
.err{color:var(--err);font:14px ui-sans-serif,system-ui,sans-serif;margin-top:12px}
.doc{max-width:700px;padding:36px 0 56px}.doc h1{font-size:36px;margin:0 0 8px}.doc h2{font-size:20px;margin-top:28px}.doc p,.doc li{color:var(--muted)}