:root{--bg:#0e2a17;--panel:#14391f;--leaf:#6fcf5a;--leaf2:#b6f08c;--text:#eaf6e4;--mute:#9cc29a}
*{box-sizing:border-box}body{margin:0;font:16px/1.55 system-ui,Segoe UI,sans-serif;background:radial-gradient(1200px 600px at 20% -10%,#1d5a31 0,var(--bg) 60%) fixed;color:var(--text)}
header{display:flex;justify-content:space-between;align-items:center;padding:14px 28px;background:#0a1f11cc;position:sticky;top:0;backdrop-filter:blur(6px)}
.brand{display:flex;align-items:center;gap:10px;color:var(--leaf2);font-weight:800;font-size:1.2rem;text-decoration:none}
.leaf{width:30px;height:30px;color:var(--leaf)}nav a{color:var(--text);margin-left:20px;text-decoration:none;opacity:.85}nav a:hover{color:var(--leaf2)}
section{max-width:980px;margin:0 auto;padding:28px 20px}h1,h2{color:var(--leaf2)}h2{border-bottom:2px solid #2d6b3f;padding-bottom:6px}
.hero{text-align:center;padding-top:56px}.hero .leaf{width:72px;height:72px}.hero h1{font-size:2.4rem;margin:.2em 0}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.card{background:var(--panel);border:1px solid #2d6b3f;border-radius:14px;padding:18px}.card.wide{max-width:none}
.card h3{margin:0;color:var(--leaf2)}.price{font-size:1.8rem;font-weight:800;margin:.3em 0}.price small{font-size:.9rem;color:var(--mute)}
.tier-evergreen{border-color:var(--leaf);box-shadow:0 0 18px #6fcf5a44}ul{padding-left:1.2em}.fine{color:var(--mute);font-size:.9rem}
input{width:100%;max-width:360px;padding:11px 12px;border-radius:10px;border:1px solid #2d6b3f;background:#0a1f11;color:var(--text);font-size:1rem;display:block;margin:6px 0 12px}
button,.btn{background:var(--leaf);color:#0a2210;border:0;border-radius:10px;padding:11px 16px;margin:0 8px 8px 0;font-weight:700;font-size:1rem;cursor:pointer;text-decoration:none;display:inline-block}
button:hover,.btn:hover{background:var(--leaf2)}#result{margin-top:10px;padding:0}#result.show{background:#0a1f11;border:1px solid var(--leaf);border-radius:10px;padding:12px}
details{background:var(--panel);border-radius:10px;padding:10px 14px;margin:8px 0;border:1px solid #2d6b3f}summary{cursor:pointer;font-weight:700}
code{background:#0a1f11;padding:2px 6px;border-radius:5px}footer{text-align:center;color:var(--mute);padding:30px 10px;font-size:.85rem}