:root{
  --bg:#ffffff;
  --ink:#111714;
  --muted:#667069;
  --soft:#f3f6f3;
  --line:#dfe6e0;
  --green:#237a4b;
  --green-dark:#185b37;
  --green-pale:#e6f3eb;
  --card:#fff;
  --radius:18px;
  --shadow:0 12px 30px rgba(13,36,23,.08);
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,textarea{font:inherit}
.container{width:min(var(--max),calc(100% - 40px));margin:auto}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:11px}
.brand-mark{width:42px;height:42px;border-radius:12px;background:var(--green);display:grid;place-items:center}
.brand-mark svg{width:29px;height:29px;fill:none;stroke:#fff;stroke-width:2.8;stroke-linecap:round;stroke-linejoin:round}
.brand strong{display:block;font-size:1.15rem;line-height:1.1}
.brand small{display:block;color:var(--muted);font-size:.72rem;margin-top:3px}
.site-menu{display:flex;align-items:center;gap:24px;font-size:.94rem}
.site-menu a:hover{color:var(--green)}
.menu-btn{display:none;background:none;border:0;padding:8px}
.menu-btn span:not(.sr-only){width:24px;height:2px;background:var(--ink);display:block;margin:5px 0}

.hero{padding:76px 0 54px;background:linear-gradient(180deg,#f5faf6 0%,#fff 100%)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:54px;align-items:center}
.eyebrow{font-size:.76rem;font-weight:800;letter-spacing:.11em;color:var(--green);margin:0 0 12px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(2.5rem,5vw,5rem);line-height:.98;letter-spacing:-.055em;margin-bottom:24px;max-width:900px}
h2{font-size:clamp(2rem,3.2vw,3.3rem);line-height:1.03;letter-spacing:-.04em;margin-bottom:16px}
h3{font-size:1.12rem;line-height:1.25}
.lead{font-size:1.2rem;color:var(--muted);max-width:720px}
.lead-sm{font-size:1.08rem;color:var(--muted);max-width:680px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 22px}
.btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid transparent;border-radius:999px;padding:13px 20px;font-weight:750;cursor:pointer;transition:.2s}
.btn-primary{background:var(--green);color:#fff}
.btn-primary:hover{background:var(--green-dark)}
.btn-secondary{background:#fff;border-color:#b8c3bb}
.btn-secondary:hover{border-color:var(--green);color:var(--green)}
.btn-small{padding:9px 14px;font-size:.9rem;background:var(--ink);color:#fff}
.trust-list{display:flex;gap:18px;flex-wrap:wrap;padding:0;margin:0;list-style:none;color:#3f4b43;font-size:.92rem}
.trust-list li::before{content:"✓";color:var(--green);font-weight:900;margin-right:7px}

.hero-panel{background:var(--ink);color:#fff;padding:32px;border-radius:28px;display:grid;grid-template-columns:auto 1fr;gap:22px;align-items:start;box-shadow:var(--shadow)}
.recycle-ring{width:70px;height:70px;border:3px solid #71d397;border-radius:50%;display:grid;place-items:center;color:#71d397;font-weight:900;font-size:1.2rem}
.panel-kicker{font-size:.76rem;letter-spacing:.1em;color:#8fe2af;font-weight:800;margin-bottom:8px}
.hero-panel h2{font-size:1.8rem;letter-spacing:-.03em}
.hero-panel p:last-child{color:#cbd4ce;margin-bottom:0}

.section{padding:76px 0}
.section-soft{background:var(--soft)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
.section-head h2{margin-bottom:0}
.text-link{color:var(--green);font-weight:750}

.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.category-card{padding:22px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;min-height:150px;display:flex;flex-direction:column;justify-content:flex-end;transition:.2s}
.category-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#bad3c3}
.category-card span{font-size:1.7rem;margin-bottom:auto}
.category-card strong{font-size:1rem}
.category-card small{color:var(--muted);margin-top:4px}

.benefit-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.benefit-grid article{background:#fff;padding:24px;border-radius:var(--radius);border:1px solid var(--line)}
.benefit-grid p,.guide-grid p{color:var(--muted);margin-bottom:0}

.muted{color:var(--muted);max-width:700px}
.stock-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stock-card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;display:flex;flex-direction:column}
.stock-image{aspect-ratio:4/3;background:linear-gradient(135deg,#dfe8e1,#f7faf7);display:grid;place-items:center}
.placeholder span{font-size:.75rem;letter-spacing:.13em;font-weight:900;color:#63736a}
.stock-body{padding:18px;display:flex;flex-direction:column;flex:1}
.stock-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:.76rem;margin-bottom:10px}
.stock-card h3{margin-bottom:7px}
.stock-card p{color:var(--muted);font-size:.9rem}
.stock-price{font-size:1.38rem;font-weight:900;margin:auto 0 14px}
.stock-price small{display:block;color:var(--muted);font-size:.7rem;font-weight:500}

.value-section{background:#15251c;color:#fff}
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
.value-section .lead-sm{color:#c5d1c9}
.value-list{display:grid;gap:10px}
.value-list div{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.12);padding:19px;border-radius:14px;display:flex;justify-content:space-between;gap:20px}
.value-list span{color:#b9c8be;text-align:right}

.sell-section{background:var(--green-pale)}
.sell-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px;align-items:start}
.sell-options{display:flex;gap:8px;flex-wrap:wrap;margin-top:24px}
.sell-options span{background:#fff;border:1px solid #caddd1;border-radius:999px;padding:8px 12px;font-size:.85rem;font-weight:700}
.sell-form{background:#fff;padding:24px;border:1px solid #d5e3d9;border-radius:22px;display:grid;grid-template-columns:1fr 1fr;gap:14px;box-shadow:var(--shadow)}
.sell-form label{display:grid;gap:7px;font-size:.86rem;font-weight:700}
.sell-form input,.sell-form textarea{width:100%;border:1px solid #ccd6cf;border-radius:12px;padding:12px 13px;background:#fff;color:var(--ink)}
.sell-form input:focus,.sell-form textarea:focus{outline:3px solid rgba(35,122,75,.13);border-color:var(--green)}
.full{grid-column:1/-1}
.form-note{font-size:.76rem;color:var(--muted);margin:0}

.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.guide-grid article{padding:24px;background:#fff;border:1px solid var(--line);border-radius:var(--radius)}

.contact-box{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:32px;border:1px solid var(--line);border-radius:24px}
.contact-box h2{margin-bottom:8px}
.contact-box p:last-child{color:var(--muted);margin-bottom:0}

.site-footer{padding:44px 0;background:#0f1712;color:#dbe3dd}
.footer-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:30px}
.footer-brand{color:#fff;font-size:1.1rem}
.footer-grid p{color:#9eaea3}
.footer-links{display:flex;gap:15px;flex-wrap:wrap;justify-content:flex-end;font-size:.88rem}
.footer-links a:hover{color:#fff}
.footer-small{grid-column:1/-1;border-top:1px solid #2a352e;padding-top:18px;display:flex;justify-content:space-between;color:#829087;font-size:.78rem;gap:18px}

dialog{border:0;border-radius:22px;padding:0;max-width:560px;width:calc(100% - 32px);box-shadow:0 30px 80px rgba(0,0,0,.28)}
dialog::backdrop{background:rgba(0,0,0,.5)}
.dialog-card{padding:28px;position:relative}
.dialog-close{position:absolute;right:16px;top:12px;border:0;background:none;font-size:1.8rem;cursor:pointer}
.dialog-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
code{background:#eef1ee;padding:2px 5px;border-radius:6px}

@media (max-width:900px){
  .site-menu{position:absolute;left:0;right:0;top:76px;background:#fff;border-bottom:1px solid var(--line);padding:18px 20px;display:none;flex-direction:column;align-items:flex-start;gap:14px}
  .site-menu.open{display:flex}
  .menu-btn{display:block}
  .hero{padding-top:52px}
  .hero-grid,.value-grid,.sell-grid{grid-template-columns:1fr}
  .hero-panel{max-width:650px}
  .category-grid,.stock-grid{grid-template-columns:repeat(2,1fr)}
  .benefit-grid{grid-template-columns:repeat(2,1fr)}
}

@media (max-width:620px){
  .container{width:min(100% - 28px,var(--max))}
  .nav-wrap{height:68px}
  .site-menu{top:68px}
  .brand small{display:none}
  .hero{padding:42px 0 35px}
  h1{font-size:clamp(2.5rem,13vw,4rem)}
  .lead{font-size:1.05rem}
  .hero-actions .btn{width:100%}
  .hero-panel{grid-template-columns:1fr}
  .section{padding:54px 0}
  .section-head{align-items:flex-start;flex-direction:column;margin-bottom:24px}
  .category-grid{grid-template-columns:1fr 1fr;gap:10px}
  .category-card{min-height:135px;padding:17px}
  .benefit-grid,.stock-grid,.guide-grid{grid-template-columns:1fr}
  .stock-grid{gap:14px}
  .value-list div{flex-direction:column;gap:5px}
  .value-list span{text-align:left}
  .sell-form{grid-template-columns:1fr;padding:18px}
  .full{grid-column:auto}
  .contact-box{align-items:flex-start;flex-direction:column}
  .contact-box .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-links{justify-content:flex-start}
  .footer-small{grid-column:auto;flex-direction:column}
}