:root{--navy:#132653;--navy2:#1d356f;--purple:#7c3aed;--text:#263247;--muted:#6f7a8c;--line:#dce2ea;--bg:#f5f7fa;--soft:#eef3f9}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}
.shell{width:min(1120px,calc(100% - 40px));margin:0 auto}
.topbar{background:#fff;border-bottom:1px solid var(--line)}
.brand{height:88px;display:flex;align-items:center;gap:26px}
.brand img{width:190px;height:62px;object-fit:contain}
.brand div{padding-left:24px;border-left:1px solid var(--line);display:flex;flex-direction:column;gap:5px}
.brand strong{color:var(--navy);font-size:17px}.brand span{font-size:13px;color:var(--muted)}
.hero{padding:46px 0 30px}.eyebrow{font-size:12px;letter-spacing:.19em;color:var(--purple);font-weight:800;margin:0 0 10px}
h1{font-size:34px;line-height:1.15;color:var(--navy);margin:0 0 12px}.hero>p:last-child{color:var(--muted);max-width:720px;margin:0;line-height:1.6}
.tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
.tab{border:1px solid var(--line);background:#fff;color:var(--muted);padding:15px 10px;border-radius:10px;cursor:pointer;font-weight:700}
.tab.active{background:var(--navy);border-color:var(--navy);color:#fff}
.panel{display:none;background:#fff;border:1px solid var(--line);border-radius:14px;padding:32px;box-shadow:0 8px 25px rgba(25,39,72,.05)}
.panel.active{display:block}.panel h2{color:var(--navy);font-size:23px;margin:0 0 7px}.panel>p{color:var(--muted);margin:0 0 25px}
.analysis-form{display:flex;flex-direction:column;gap:18px}
.dropzone{position:relative;min-height:180px;border:2px dashed #bdc7d6;border-radius:12px;background:var(--soft);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:30px;cursor:pointer}
.dropzone:hover{border-color:var(--navy2);background:#eaf0f8}.dropzone input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.drop-title{font-weight:800;color:var(--navy);font-size:17px}.drop-meta{margin-top:8px;color:var(--muted);font-size:13px}
.primary{align-self:flex-start;border:0;border-radius:9px;background:var(--navy);color:#fff;padding:14px 22px;font-weight:800;cursor:pointer}
.primary:hover{background:var(--navy2)}.grid-form{display:grid;grid-template-columns:2fr 1fr;gap:18px}
.grid-form label{display:flex;flex-direction:column;gap:7px;font-weight:700;color:var(--navy)}
.grid-form input{height:48px;border:1px solid var(--line);border-radius:8px;padding:0 13px;font-size:15px}.full-row{grid-column:1/-1}
.processing{margin-top:16px;border:1px solid #cdd8e8;background:#fff;border-radius:12px;padding:18px;display:flex;align-items:center;gap:16px}
.processing[hidden]{display:none}.processing p{margin:4px 0 0;color:var(--muted);font-size:13px}
.spinner{width:28px;height:28px;border:3px solid #dce4ef;border-top-color:var(--purple);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}.error-box{margin-top:16px;background:#fff1f1;border:1px solid #efb7b7;color:#8a1d1d;padding:16px;border-radius:10px}
.footer{margin-top:50px;border-top:1px solid var(--line);background:#fff}.footer .shell{min-height:80px;display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:12px}.footer strong{color:var(--navy)}
@media(max-width:760px){.tabs{grid-template-columns:1fr 1fr}.brand div{display:none}.hero{padding-top:30px}h1{font-size:28px}.panel{padding:22px}.grid-form{grid-template-columns:1fr}}