:root{--bg:#faf9f7;--text:#2c2926;--muted:#7a746d;--accent:#4a7c59;--accent-light:#e6efe8;--card:#fff;--border:#e8e4df;--gold:#c0883a}
*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'Segoe UI',-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}
.container{max-width:720px;margin:0 auto;padding:0 20px}
header{padding:48px 0 32px;text-align:center;border-bottom:1px solid var(--border)}
header h1{font-size:28px;font-weight:700;letter-spacing:-.5px;margin-bottom:8px}
header p{color:var(--muted);font-size:15px;max-width:520px;margin:0 auto}
.intro{padding:32px 0;font-size:15px;color:var(--muted);border-bottom:1px solid var(--border)}
.intro p{margin-bottom:12px}.intro strong{color:var(--text)}
.calc-section{padding:32px 0}.calc-section h2{font-size:18px;font-weight:600;margin-bottom:20px}
.input-group{margin-bottom:20px}
.input-group label{display:block;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:8px}
.options{display:flex;gap:8px;flex-wrap:wrap}
.opt{padding:10px 18px;border:2px solid var(--border);border-radius:8px;cursor:pointer;font-size:14px;transition:all .15s;background:var(--card);color:var(--text);font-weight:500}
.opt:hover{border-color:var(--accent)}.opt.active{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}
.slider-group{margin-bottom:24px}
.slider-group label{display:block;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;color:var(--muted);margin-bottom:8px}
.slider-row{display:flex;align-items:center;gap:12px}.slider-row input[type=range]{flex:1;accent-color:var(--accent)}
.slider-val{font-size:20px;font-weight:700;min-width:130px;text-align:right}
.amount-field{margin-top:10px;display:none}.amount-field.show{display:block}
.amount-field input[type=number]{width:100%;padding:10px 12px;border:2px solid var(--border);border-radius:8px;font-size:15px}
.btn-calc{width:100%;padding:14px;border:none;border-radius:8px;background:var(--accent);color:#fff;font-size:16px;font-weight:600;cursor:pointer;transition:background .15s}
.btn-calc:hover{background:#3d6849}
.results{display:none;padding:32px 0}.results.show{display:block}
.total-card{background:var(--accent);color:#fff;border-radius:12px;padding:28px;text-align:center;margin-bottom:20px}
.total-card .label{font-size:14px;opacity:.85;margin-bottom:4px}.total-card .amount{font-size:42px;font-weight:800;letter-spacing:-1px}
.total-card .sublabel{font-size:13px;opacity:.85;margin-top:6px}
.detail-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px 24px;margin-bottom:20px}
.detail-card .row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border)}
.detail-card .row:last-child{border-bottom:none}.detail-card .k{color:var(--muted);font-size:14px}.detail-card .v{font-weight:600;font-size:14px}
.warn{background:#fbf1e3;border-left:3px solid var(--gold);border-radius:8px;padding:14px 16px;margin:16px 0;font-size:13px}.warn strong{color:var(--gold)}
.providers{margin:24px 0}.providers h3{font-size:16px;margin-bottom:12px}
.provider-row{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border:1px solid var(--border);border-radius:10px;margin-bottom:10px;background:var(--card)}
.provider-row .pinfo b{font-size:15px}.provider-row .pinfo small{display:block;color:var(--muted);font-size:12px}
.provider-row a{font-size:13px;font-weight:600;color:#fff;background:var(--accent);padding:8px 16px;border-radius:8px;text-decoration:none;white-space:nowrap}
.provider-row a:hover{background:#3d6849}
.btn-donate{display:inline-block;background:var(--accent);color:#fff;padding:11px 20px;border-radius:8px;text-decoration:none;font-size:14px;font-weight:600}.btn-donate:hover{background:#3d6849}
.explainer{padding:32px 0;border-top:1px solid var(--border)}.explainer h2{font-size:20px;margin-bottom:16px}.explainer h3{font-size:16px;margin:20px 0 8px}
.explainer p{font-size:15px;margin-bottom:12px}.explainer ol,.explainer ul{margin:0 0 12px 20px;font-size:15px}.explainer li{margin-bottom:6px}.explainer .muted{color:var(--muted);font-size:14px}
.disclaimer{padding:24px 0;border-top:1px solid var(--border);font-size:12px;color:var(--muted)}.disclaimer h4{font-size:13px;margin-bottom:8px;color:var(--text)}
footer{padding:24px 0;border-top:1px solid var(--border);text-align:center;font-size:12px;color:var(--muted)}
.disclosure{background:#f5f0eb;padding:8px 20px;font-size:12px;color:var(--muted);text-align:center;border-bottom:1px solid var(--border)}.disclosure a{color:var(--accent);margin-left:4px}
nav.site{padding:12px 20px;border-bottom:1px solid var(--border);font-size:14px;max-width:720px;margin:0 auto}nav.site .brand{color:var(--text);text-decoration:none;font-weight:600}nav.site .links{float:right;font-size:13px}nav.site .links a{color:var(--muted);text-decoration:none;margin-left:16px}
.langbar{max-width:720px;margin:0 auto;padding:6px 20px;font-size:12px;color:var(--muted);text-align:right}.langbar a{color:var(--accent);text-decoration:none;margin-left:10px;font-weight:600}.langbar a.on{color:var(--muted);text-decoration:underline}
@media(max-width:480px){header{padding:32px 0 24px}header h1{font-size:22px}.total-card .amount{font-size:32px}.slider-val{font-size:17px;min-width:110px}}