:root{--brand-primary:#203128;--brand-secondary:#68776B;--brand-accent:#CFB16A;--brand-dark:#18211D;--brand-light:#F6F3EB;--text-primary:#18211D;--text-secondary:#637067;--background:#ECEBE5;--surface:#FFFDF8;--border:#D7D8CE;--font-heading:ui-serif,Georgia,serif;--font-body:system-ui,-apple-system,"Segoe UI",sans-serif;--font-numeric:"Arial Narrow",system-ui,sans-serif;--space-1:8px;--space-2:12px;--space-3:18px;--space-4:26px;--space-5:40px;--radius-sm:12px;--radius-md:20px;--radius-lg:28px;--shadow:0 12px 34px rgba(24,33,29,.1)}[hidden]{display:none!important}*{box-sizing:border-box}body{margin:0;background:var(--background);color:var(--text-primary);font-family:var(--font-body);line-height:1.45}.app-header{height:68px;padding:14px max(20px,calc((100% - 1100px)/2));display:flex;justify-content:space-between;align-items:center;background:var(--brand-dark);color:#fff}.logo-slot{width:120px;height:28px;border-left:3px solid var(--brand-accent);opacity:.95}.history-link,.back-button,.text-button{border:0;background:none;color:inherit;font:inherit;cursor:pointer}.history-link{color:#fff;font-size:14px}.app-shell{max-width:760px;margin:auto;padding:28px 18px 60px}.home-view{padding-top:10vh}.eyebrow{margin:0 0 7px;color:var(--brand-secondary);font-size:11px;font-weight:800;letter-spacing:.11em;text-transform:uppercase}h1,h2,h3{font-family:var(--font-heading);line-height:1.07;margin:0}h1{font-size:clamp(34px,8vw,52px);max-width:620px}h2{font-size:26px}.intro,.support-copy{color:var(--text-secondary);margin:12px 0 22px}.button{border:0;border-radius:999px;min-height:48px;padding:12px 18px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font:700 15px var(--font-body);cursor:pointer;text-decoration:none}.button-primary{background:var(--brand-primary);color:#fff}.button-ghost{background:transparent;color:var(--brand-primary);border:1px solid var(--brand-primary)}.button-xl{width:100%;min-height:58px;font-size:17px}.evaluation-form{display:grid;gap:16px}.form-top{display:flex;justify-content:space-between;align-items:center}.back-button{font-weight:700;color:var(--brand-primary)}.status{font-size:13px;color:var(--text-secondary)}.section-card,.capture-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-md);padding:var(--space-4);box-shadow:var(--shadow)}.product-capture{background:var(--brand-dark);color:#fff}.product-capture .eyebrow{color:var(--brand-accent)}.image-preview{width:100%;aspect-ratio:1.4;display:grid;place-items:center;margin:18px 0;border-radius:var(--radius-sm);overflow:hidden;background:rgba(255,255,255,.11);font-size:42px}.image-preview img,.thumbnail-list img{width:100%;height:100%;object-fit:cover}.text-button{display:block;margin:12px auto 0;color:inherit;text-decoration:underline}.supplier-actions{display:grid;grid-template-columns:repeat(3,1fr);gap:9px}.photo-action{min-height:110px;border:1px dashed var(--brand-secondary);border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;flex-direction:column;gap:7px;text-align:center;font-size:14px;cursor:pointer}.thumbnail-list{display:flex;gap:8px;overflow:auto;margin-top:14px}.thumbnail{position:relative;flex:0 0 76px;height:76px;border-radius:10px;overflow:hidden}.thumbnail button{position:absolute;right:3px;top:3px;border:0;border-radius:50%;background:#fff;width:22px;height:22px;cursor:pointer}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.field{display:grid;gap:6px;font-size:14px;font-weight:700}.field span{color:var(--text-secondary);font-weight:500}.field-full{grid-column:1/-1}.field input{border:1px solid var(--border);border-radius:10px;background:#fff;padding:13px;font:16px var(--font-body);min-width:0}.field input:focus{outline:3px solid rgba(207,177,106,.35);border-color:var(--brand-accent)}.field-secondary{font-weight:600;color:var(--text-secondary)}.type-selector{border:0;padding:0;margin:0;display:grid;grid-template-columns:1fr 1fr;gap:8px}.type-selector legend{grid-column:1/-1;font-size:14px;font-weight:700}.type-selector input{position:absolute;opacity:0}.type-selector span{display:block;padding:13px;text-align:center;border:1px solid var(--border);border-radius:10px;font-weight:700}.type-selector input:checked+span{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary)}.ncm-status{margin-top:14px;font-size:14px}.alert{padding:12px;border-left:3px solid #C7862B;background:#FFF4DD;color:#5C3C08}.scenario-inputs,.result-cards{display:grid;gap:12px}.scenario-input{border:1px solid var(--border);border-radius:var(--radius-sm);padding:16px}.scenario-input h3{font-family:var(--font-body);font-size:16px;margin-bottom:12px}.scenario-input .field+.field{margin-top:12px}.insufficient{color:#9A4D32;font-size:13px;margin:10px 0 0}.compact{display:flex;align-items:center;justify-content:space-between;gap:16px}.exchange-field{font:700 15px var(--font-body);white-space:nowrap}.exchange-field input{width:68px;border:0;border-bottom:2px solid var(--brand-accent);font:700 18px var(--font-numeric);background:transparent;padding:4px}.result-card{background:var(--brand-dark);color:#fff;border-radius:var(--radius-md);padding:22px}.result-card .eyebrow{color:var(--brand-accent)}.unit-cost{font:800 clamp(31px,8vw,45px) var(--font-numeric);letter-spacing:-.04em;margin:10px 0}.result-meta{display:flex;justify-content:space-between;color:#D8DED7;font-size:14px}.detail-panel{margin-top:14px;border-top:1px solid var(--border)}.detail-section{padding:16px 0;border-bottom:1px solid var(--border)}.detail-line{display:flex;justify-content:space-between;gap:16px;font-weight:700}.detail-more{color:var(--text-secondary);font-size:13px;margin-top:7px}.history-list{display:grid;gap:12px;margin-top:30px}.history-item{border:1px solid var(--border);background:var(--surface);border-radius:var(--radius-sm);padding:14px;display:flex;gap:12px;text-align:left;cursor:pointer}.history-photo{width:64px;height:64px;border-radius:10px;background:var(--brand-light);overflow:hidden;flex:none}.history-photo img{width:100%;height:100%;object-fit:cover}.history-item strong{display:block}.history-item small{color:var(--text-secondary)}.error-message{color:#9A3324;font-weight:700;margin:0}.hidden{display:none}@media(min-width:680px){.app-shell{max-width:980px}.result-cards,.scenario-inputs{grid-template-columns:1fr 1fr}.evaluation-form{gap:20px}}@media(max-width:460px){.form-grid{grid-template-columns:1fr}.compact{display:block}.exchange-field{display:block;margin-top:10px}}