:root{
  --ink:#0f1222;--muted:#5c6273;--line:#e7e9f0;--bg:#fff;--soft:#f5f6fb;
  --accent:#0b6b5f;--accent-d:#095448;--coral:#c8912f;--danger:#e5484d;--ok:#12855f;--radius:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Inter",system-ui,-apple-system,sans-serif;color:var(--ink);background:var(--bg);line-height:1.55}
a{color:inherit;text-decoration:none}
.wrap{max-width:1120px;margin:0 auto;padding:0 22px}
img{max-width:100%}

/* nav */
nav{position:sticky;top:0;z-index:40;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.nav-in{display:flex;align-items:center;gap:26px;height:64px}
.logo{font-weight:800;font-size:19px;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}
.logo .dot{width:22px;height:22px;border-radius:7px;background:linear-gradient(135deg,var(--accent),var(--coral));display:inline-block}
.nav-links{display:flex;gap:22px;font-size:14.5px;color:var(--muted)}
.nav-links a:hover{color:var(--ink)}
.nav-cta{margin-left:auto;display:flex;gap:10px}
.btn{font-family:inherit;font-size:14.5px;font-weight:600;border-radius:10px;padding:9px 16px;cursor:pointer;border:1px solid var(--line);background:#fff;color:var(--ink);display:inline-flex;align-items:center;gap:8px;transition:.14s}
.btn:hover{border-color:#c9cde0}
.btn.pri{background:var(--accent);border-color:var(--accent);color:#fff}
.btn.pri:hover{background:var(--accent-d)}
.btn.danger{color:var(--danger)}
.btn:disabled{opacity:.4;cursor:not-allowed}

/* hero / headings */
.hero{padding:64px 0 30px;text-align:center}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--accent);background:#e3f2ef;padding:5px 12px;border-radius:100px;margin-bottom:18px}
h1{font-size:clamp(30px,5vw,50px);line-height:1.06;letter-spacing:-.03em;margin:0 0 14px;font-weight:800}
h1 em{font-style:normal;background:linear-gradient(120deg,var(--accent),var(--coral));-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{font-size:18px;color:var(--muted);max-width:600px;margin:0 auto 28px}

/* dropzone */
.drop{max-width:600px;margin:0 auto;border:2px dashed #c9cde0;border-radius:20px;background:var(--soft);padding:46px 24px;transition:.15s;cursor:pointer;text-align:center;display:block}
.drop:hover,.drop.over{border-color:var(--accent);background:#e6f4f0}
.drop .ico{width:56px;height:56px;border-radius:16px;background:var(--accent);margin:0 auto 16px;display:grid;place-items:center;color:#fff;font-size:26px}
.drop b{font-size:18px;display:block}
.drop small{color:var(--muted);font-size:14px}
.drop .btn.pri{margin-top:18px}
.trust{margin-top:20px;font-size:13px;color:var(--muted);display:flex;gap:20px;justify-content:center;flex-wrap:wrap}
.trust i{color:var(--ok);font-style:normal;margin-right:5px}
input[type=file]{display:none}

/* sections */
section{padding:60px 0}
.sec-head{text-align:center;margin-bottom:34px}
.sec-head h2{font-size:30px;letter-spacing:-.02em;margin:0 0 8px}
.sec-head p{color:var(--muted);margin:0}

/* tool grid */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:16px}
.card{border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:.15s;background:#fff;display:block}
.card:hover{border-color:#c9cde0;box-shadow:0 8px 26px rgba(15,18,34,.07);transform:translateY(-2px)}
.card .ci{width:42px;height:42px;border-radius:11px;display:grid;place-items:center;font-size:20px;margin-bottom:14px;background:#e3f2ef;color:var(--accent)}
.card.c2 .ci{background:#faf1df;color:var(--coral)}
.card h3{margin:0 0 4px;font-size:16px}
.card p{margin:0;font-size:13.5px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:s}
.step{padding-left:6px}
.step::before{counter-increment:s;content:"0" counter(s);font-weight:800;font-size:15px;color:var(--accent);display:block;margin-bottom:8px}
.step h4{margin:0 0 6px;font-size:17px}
.step p{margin:0;color:var(--muted);font-size:14.5px}

/* faq + prose */
.faq{max-width:760px;margin:0 auto}
details{border:1px solid var(--line);border-radius:12px;padding:4px 18px;margin-bottom:12px}
summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;display:flex;justify-content:space-between;align-items:center}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--accent);font-size:22px}
details[open] summary::after{content:"–"}
details p{margin:0 0 14px;color:var(--muted);font-size:14.5px}
.prose{max-width:720px;margin:0 auto;font-size:16.5px}
.prose h2{font-size:26px;margin:34px 0 12px;letter-spacing:-.02em}
.prose h3{font-size:20px;margin:26px 0 8px}
.prose p{color:#30343f;margin:0 0 16px}
.prose ul{color:#30343f;padding-left:20px}
.prose li{margin-bottom:8px}
.prose a{color:var(--accent);font-weight:600}

/* tool app shell (for editor-type pages) */
.appbar{background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px;padding:9px 16px;flex-wrap:wrap}
.appbar.disabled{opacity:.45;pointer-events:none}
.sep{width:1px;height:22px;background:var(--line)}
.stage{padding:26px;display:flex;flex-direction:column;align-items:center;gap:16px}
.paper{background:#fff;box-shadow:0 4px 30px rgba(15,18,34,.12)}

/* footer */
footer{background:var(--soft);border-top:1px solid var(--line);padding:52px 0 30px;margin-top:20px}
.fcols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}
.fcols h5{font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin:0 0 14px}
.fcols a{display:block;font-size:14px;color:var(--ink);margin-bottom:10px;opacity:.85}
.fcols a:hover{opacity:1;color:var(--accent)}
.fbottom{border-top:1px solid var(--line);margin-top:34px;padding-top:20px;font-size:13px;color:var(--muted);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

@media(max-width:820px){.steps,.fcols{grid-template-columns:1fr 1fr}.nav-links{display:none}}
@media(max-width:520px){.fcols{grid-template-columns:1fr}}