:root{font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#18333b;background:#f5f8f7;font-synthesis:none;line-height:1.6;--accent:#007a65;--line:#d4e2df}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0}[hidden]{display:none!important}a{color:var(--accent)}.container{max-width:1140px;margin:auto;padding:0 28px}header,footer{display:flex;align-items:center;justify-content:space-between;gap:24px}header{height:100px;border-bottom:1px solid var(--line)}nav{display:flex;gap:24px;flex-wrap:wrap}nav a{text-decoration:none}.brand{font-size:23px;font-weight:800;text-decoration:none;color:#18333b}.brand span{font-weight:400;margin-left:5px;color:var(--accent)}.hero{padding:80px 0 70px;max-width:840px}.eyebrow{font-size:12px;letter-spacing:2px;font-weight:700;color:var(--accent)}h1{font-size:clamp(48px,8vw,86px);letter-spacing:-4px;line-height:1.08;margin:24px 0}h1 span{color:var(--accent)}.hero p{max-width:580px;font-size:20px;color:#50656a}.button,button{display:inline-block;background:var(--accent);border:1px solid var(--accent);color:white;text-decoration:none;font:inherit;font-weight:600;padding:12px 20px;border-radius:9px;cursor:pointer}.secondary{background:white;color:var(--accent);border-color:var(--line)}button:disabled{opacity:.5;cursor:not-allowed}.facts{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;margin-top:32px;color:#617277}h2{font-size:28px;line-height:1.3;letter-spacing:-.7px}.tools{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.tool{text-align:left;min-height:148px;padding:22px;background:white;color:#18333b;border:1px solid var(--line);font-weight:400;transition:transform .15s,border-color .15s}.tool:hover{border-color:var(--accent);transform:translateY(-2px)}.tool strong{display:block;font-size:17px;margin:5px 0}.tool span{display:block;font-size:13px;color:#617277}.tool .number{font-size:12px;font-weight:700;color:var(--accent);letter-spacing:1px}.workspace{background:white;border:1px solid var(--line);border-radius:16px;padding:32px;margin:30px 0}.workspace-heading{display:flex;align-items:center;justify-content:space-between;gap:15px}.workspace-heading h2{margin:8px 0}.drop{display:flex;flex-direction:column;gap:12px;background:#f3f8f6;border:2px dashed #b5d3cb;padding:25px;border-radius:12px;cursor:pointer}.drop span{font-size:13px;color:#617277}input,select{font:inherit;max-width:100%;border:1px solid var(--line);border-radius:7px;padding:10px;background:white;color:#18333b}input[type=file]{border:0;padding:0;background:transparent}.field{margin:24px 0;display:flex;flex-direction:column;gap:8px;max-width:480px}small{color:#617277}.notice{background:#fff8e6;border:1px solid #efdda8;padding:12px 16px;border-radius:8px;font-size:13px}.actions{display:flex;gap:10px;flex-wrap:wrap}#file-list li{margin:10px 0;word-break:break-word}#file-list button{padding:4px 10px;margin-left:8px;font-size:12px}.results{padding:20px;background:#f0f8f5;border-radius:10px}#downloads{display:flex;gap:10px;flex-wrap:wrap}#downloads a{border:1px solid #a9d2c5;border-radius:8px;padding:8px 14px;background:white}#size-result{font-size:14px}progress{width:100%;accent-color:var(--accent)}#status{min-height:25px}.error{color:#aa2835}.explain{padding:70px 0}.explain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px}.explain p{color:#617277;font-size:15px}.commercial{padding:28px;border:1px solid var(--line);border-radius:12px;margin-bottom:50px}footer{padding-top:30px!important;padding-bottom:40px!important;border-top:1px solid var(--line);font-size:13px}.legal{max-width:760px;padding-top:50px;padding-bottom:80px}.legal h1{font-size:44px;letter-spacing:-2px}.legal h2{font-size:23px}:focus-visible{outline:3px solid #c07800;outline-offset:4px}@media(max-width:850px){.tools{grid-template-columns:repeat(2,1fr)}.explain-grid{grid-template-columns:1fr;gap:12px}}@media(max-width:500px){.container{padding-left:18px;padding-right:18px}header{height:90px}header nav{font-size:13px;gap:12px}.hero{padding:50px 0}h1{letter-spacing:-2px}.hero p{font-size:17px}.workspace{padding:20px}.workspace-heading{align-items:flex-start;flex-direction:column}.facts{gap:12px}.tools{gap:10px}.tool{padding:15px;min-height:150px}footer{align-items:flex-start;flex-direction:column}}