:root{color-scheme:light;--bg:#f5f8fb;--panel:#ffffff;--ink:#09213d;--muted:#5d6c7e;--line:#d6e1e8;--accent:#0f6b55;--accent-strong:#0f6b55;--accent-soft:#eef7f4;--danger-soft:#fff4ed;--teal:#0e8f8c;--white:#ffffff}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:var(--ink);background:linear-gradient(180deg,#eef6f3,#ffffff 34%,#f5f8fb);min-height:100vh}button,input{font:inherit}.shell{min-height:100vh;overflow-x:hidden;padding:22px clamp(18px,4vw,48px) 48px;display:flex;flex-direction:column}.copyright,.site-topbar,header,main{margin-left:auto;margin-right:auto;width:100%}.copyright,header,main{max-width:1180px}.site-topbar{align-items:center;background:rgba(255,255,255,.88);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border:1px solid rgba(201,220,218,.72);border-radius:18px;box-shadow:0 24px 70px rgba(8,31,51,.12);display:flex;justify-content:space-between;gap:18px;margin-bottom:34px;max-width:1260px;padding:14px 22px}.brand-link{align-items:center;color:var(--ink);display:inline-flex;gap:12px;min-width:0}.brand-mark{align-items:center;background:transparent;border:0;border-radius:14px;color:#fff;display:flex;flex:0 0 auto;height:42px;justify-content:center;overflow:hidden;position:relative;width:60px}.brand-link strong{color:var(--ink);font-size:17px;font-weight:800;line-height:1.2;white-space:nowrap}.brand-fallback{align-items:center;background:var(--ink);color:#ffffff;display:none;font-size:15px;font-weight:800;inset:0;justify-content:center;letter-spacing:0;position:absolute}.brand-mark img{display:block;height:100%;object-fit:contain;object-position:center;padding:4px;position:relative;width:100%;z-index:1}.brand-mark img.hidden{display:none}.brand-mark img.hidden+.brand-fallback{display:flex}.nav-actions{align-items:center;display:flex;flex:0 0 auto;gap:10px}.nav-button{align-items:center;background:#ffffff;border:1px solid #d7e1ea;border-radius:10px;box-shadow:0 8px 24px rgba(8,31,51,.06);color:var(--ink);display:inline-flex;font-size:16px;font-weight:700;gap:8px;justify-content:center;min-height:40px;padding:0 14px;text-decoration:none;white-space:nowrap}.nav-button:hover{background:#eef7f4;border-color:#9db7ae}.modules-icon{display:grid;flex:0 0 auto;grid-gap:3px;gap:3px;grid-template-columns:repeat(2,6px)}.modules-icon span{border:2px solid;border-radius:2px;height:6px;width:6px}header{align-items:flex-start;display:flex;justify-content:space-between;gap:24px;margin-bottom:32px}.eyebrow{color:var(--accent);font-size:12px;font-weight:800;letter-spacing:0;margin:0 0 10px;text-transform:uppercase}h1,h2,p{margin:0}h1{font-size:clamp(2.25rem,3.4vw,3.25rem);letter-spacing:0;line-height:1.08}h2{font-size:18px}p{max-width:760px;line-height:1.5}.subtitle,p{color:var(--muted)}.subtitle{font-size:clamp(1rem,1.4vw,1.12rem);line-height:1.55;margin-top:10px}.session-panel{align-items:flex-end;color:var(--muted);display:grid;flex-shrink:0;font-size:14px;grid-gap:8px;gap:8px;line-height:1.35;min-width:220px;text-align:right}.session-panel strong{color:var(--ink);font-size:14px}main{display:grid;grid-gap:24px;gap:24px;grid-template-columns:minmax(0,1.4fr) minmax(320px,.6fr);flex:1 1}form{margin:0}.dropzone,.panel{background:var(--panel);border:1px solid var(--line);border-radius:8px}.dropzone{align-items:center;border-style:dashed;display:flex;flex-direction:column;justify-content:center;min-height:360px;padding:44px;text-align:center}.dropzone.dragging{background:var(--accent-soft);border-color:var(--accent)}.dropzone p,.file-summary span,.guardrail{color:var(--muted);font-size:14px;line-height:1.45}.dropzone p{margin:10px 0 22px;max-width:430px}.upload-icon{align-items:center;background:var(--accent-soft);border:1px solid #b7ddd7;border-radius:8px;color:var(--accent-strong);display:flex;height:58px;justify-content:center;margin-bottom:16px;width:58px}.upload-icon svg{height:28px;width:28px}input[type=file]{display:none}.button{align-items:center;border:1px solid var(--line);border-radius:8px;cursor:pointer;display:inline-flex;font-weight:800;gap:8px;justify-content:center;min-height:44px;padding:0 16px;text-decoration:none;white-space:nowrap}.button.primary{background:var(--accent);border-color:var(--accent);color:#fff}.button.secondary{background:#fff;color:var(--ink)}button:disabled{cursor:not-allowed;opacity:.5}.button.full{width:100%}.panel{align-self:start;padding:24px}.panel h2{margin-bottom:16px}.file-summary{align-items:center;background:#f4faf9;border:1px solid #cce7e3;border-radius:8px;color:var(--accent-strong);display:none;gap:10px;margin-bottom:14px;padding:12px}.file-summary.visible{display:flex}.file-summary span,.file-summary strong{display:block}.status{background:#f7faf9;border:1px solid var(--line);border-radius:8px;color:var(--muted);font-size:14px;font-weight:800;line-height:1.4;margin-top:14px;min-height:48px;padding:13px 14px}.status.error{background:var(--danger-soft);color:#9a3412}.status.success{background:var(--accent-soft);color:var(--accent-strong)}.guardrail{border-top:1px solid var(--line);display:grid;grid-gap:8px;gap:8px;margin-top:18px;padding-top:16px}.guardrail strong{color:var(--ink);font-size:14px}.copyright{color:var(--muted);font-size:13px;margin-top:auto;padding-top:28px;text-align:center}@media (max-width:880px){.shell{padding:18px}.site-topbar{align-items:center;display:flex;padding:16px}.brand-mark{height:36px;width:52px}.brand-link strong{font-size:15px}.nav-button{min-height:38px}header,main{display:grid;grid-template-columns:1fr}.session-panel{align-items:flex-start;text-align:left}.dropzone{min-height:360px;padding:28px}}