:root{--ink:#14213d;--muted:#5b6475;--line:#e3e7ee;--bg:#f7f8fb;--brand:#1f6f5c;--brand2:#e8f3ef;--warn:#b54708;--r:12px}
*{box-sizing:border-box}body{margin:0;font:15px/1.55 Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;color:var(--ink);background:var(--bg)}
a{color:var(--brand)}header.top{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:5}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.nav{display:flex;align-items:center;gap:18px;height:62px}
.logo{font-weight:800;font-size:19px;color:var(--ink);text-decoration:none;letter-spacing:-.3px}.logo span{color:var(--brand)}
.nav .sp{flex:1}.nav a.l{color:var(--muted);text-decoration:none;font-weight:500}
.btn{display:inline-block;border:1px solid var(--brand);background:var(--brand);color:#fff;padding:10px 16px;border-radius:10px;font-weight:600;cursor:pointer;text-decoration:none;font-size:14px}
.btn.ghost{background:#fff;color:var(--brand)}.btn.sm{padding:6px 10px;font-size:13px}.btn.danger{border-color:#c4320a;background:#fff;color:#c4320a}
.hero{padding:64px 0 40px;text-align:center}.hero h1{font-size:clamp(30px,5vw,48px);line-height:1.1;margin:0 0 14px;letter-spacing:-1px}
.hero p{color:var(--muted);font-size:18px;max-width:640px;margin:0 auto 24px}
.grid3{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin:24px 0}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin:0 0 6px}.muted{color:var(--muted)}section{padding:28px 0}
.price{font-size:34px;font-weight:800}.badge{display:inline-block;background:var(--brand2);color:var(--brand);border-radius:99px;padding:2px 10px;font-size:12px;font-weight:700}
footer{border-top:1px solid var(--line);background:#fff;padding:28px 0;margin-top:40px;color:var(--muted);font-size:14px}
footer a{color:var(--muted);margin-right:14px}
.ad{border:1px dashed var(--line);border-radius:10px;color:#5b6472;font-size:12px;text-align:center;padding:14px;margin:18px 0;background:#fff}
/* app */
.app{display:grid;grid-template-columns:1fr 360px;gap:20px;padding:20px 0}
@media(max-width:900px){.app{grid-template-columns:1fr}.nav a.l{display:none}}
.panel{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;margin-bottom:16px}
.panel h2{font-size:16px;margin:0 0 12px}label{display:block;font-size:12px;font-weight:600;color:var(--muted);margin:8px 0 3px}
input,select,textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:9px 10px;font:inherit;background:#fff;color:var(--ink)}
textarea{min-height:64px}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
table.items{width:100%;border-collapse:collapse}table.items td,table.items th{padding:5px 4px;text-align:left;font-size:13px}
table.items th{color:var(--muted);font-weight:600;border-bottom:1px solid var(--line)}
table.items input{padding:7px}.num{width:90px}.tot{display:flex;justify-content:space-between;padding:4px 0}.tot.big{font-weight:800;font-size:18px;border-top:1px solid var(--line);padding-top:8px}
.tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}.tabs button{border:1px solid var(--line);background:#fff;border-radius:99px;padding:6px 12px;cursor:pointer;font-weight:600}
.tabs button.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.doclist .d{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:8px 0;gap:8px;font-size:13px}
.st{font-size:11px;font-weight:700;border-radius:99px;padding:2px 8px;background:#eef}.st.accepted,.st.paid{background:#dcfae6;color:#067647}.st.sent{background:#e0f2fe;color:#026aa2}.st.declined,.st.overdue{background:#fee4e2;color:#b42318}.st.draft{background:#f2f4f7;color:#344054}
.modal{position:fixed;inset:0;background:rgba(20,33,61,.45);display:none;align-items:center;justify-content:center;z-index:20;padding:16px}.modal.on{display:flex}
.modal .card{max-width:460px;width:100%}.lock{font-size:11px;color:var(--warn);font-weight:700}
.prose{max-width:760px}.prose h2{margin-top:28px}
.doc{background:#fff;max-width:800px;margin:24px auto;border:1px solid var(--line);border-radius:var(--r);padding:32px}

/* mobile overflow fix */
.row{grid-template-columns:repeat(auto-fit,minmax(min(150px,100%),1fr))}input,select,textarea{min-width:0;max-width:100%}
@media(max-width:600px){.panel .btn{white-space:normal}.panel>div:has(>#convert){display:flex;flex-wrap:wrap;gap:8px}}
.app>*{min-width:0}@media(max-width:900px){.app{grid-template-columns:minmax(0,1fr)}}
@media(max-width:600px){table.items{display:block;overflow-x:auto;max-width:100%}}
/* hide ad slots until a real AdSense <ins> is inserted */
.ad:not(:has(ins)){display:none!important}