:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#172017;background:#f6faf3}*{box-sizing:border-box}body{margin:0}button,input{font:inherit}.app-shell{min-height:100vh;background:linear-gradient(135deg,#ffffffe0,#e9f5e0e6),#f6faf3}.hero{display:grid;grid-template-columns:minmax(0,.9fr) minmax(360px,1.1fr);gap:40px;align-items:center;width:min(1180px,calc(100% - 40px));min-height:100vh;margin:0 auto;padding:40px 0}.brand-panel,.workflow{min-width:0}.brand-logo{display:block;width:min(420px,100%);height:auto;margin-bottom:34px}.eyebrow,.section-label{margin:0 0 12px;font-size:14px;font-weight:800;letter-spacing:.08em;color:#087b2e}h1{max-width:580px;margin:0;font-size:clamp(38px,5vw,64px);line-height:1.04;letter-spacing:0;color:#102213}.intro{max-width:540px;margin:24px 0 0;font-size:18px;line-height:1.8;color:#536153}.workflow{display:grid;gap:18px}.upload-card,.result-card{border:1px solid #dce8d6;border-radius:8px;background:#ffffffeb;box-shadow:0 24px 80px #2340221f}.upload-card{padding:22px}.dropzone{display:flex;min-height:178px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;border:2px dashed #9dcc89;border-radius:8px;background:#f4faef;padding:24px;text-align:center;transition:border-color .16s ease,background .16s ease,transform .16s ease}.dropzone:hover{border-color:#108535;background:#eff8e8;transform:translateY(-1px)}.dropzone input{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}.dropzone-title{font-size:20px;font-weight:900;color:#142314}.dropzone-text{margin-top:8px;font-size:15px;color:#667465}.dropzone-button{display:inline-flex;align-items:center;justify-content:center;min-height:44px;margin-top:20px;border-radius:8px;background:#07822e;padding:0 18px;font-size:15px;font-weight:900;color:#fff}.preview{margin-top:18px;overflow:hidden;border:1px solid #dce8d6;border-radius:8px;background:#f8fbf6}.preview img{display:block;width:100%;height:300px;object-fit:cover}.empty-preview{display:grid;min-height:300px;place-items:center;padding:24px;color:#7a8779}.file-meta{display:flex;gap:14px;align-items:center;justify-content:space-between;padding:14px 16px;color:#526252}.file-meta strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.file-meta span{flex:0 0 auto;font-size:14px}.recommend-button{width:100%;min-height:54px;margin-top:18px;border:0;border-radius:8px;background:#121f14;color:#fff;cursor:pointer;font-size:17px;font-weight:900;transition:background .16s ease,transform .16s ease}.recommend-button:hover:not(:disabled){background:#07822e;transform:translateY(-1px)}.recommend-button:disabled{cursor:not-allowed;background:#c7d2c3}.result-card{padding:24px}.result-content{display:grid;gap:16px}.grade-row{display:flex;gap:14px;align-items:center;justify-content:space-between}.grade-row strong{font-size:34px;line-height:1;color:#07822e}.grade-row span{border-radius:999px;background:#edf7e8;padding:8px 12px;font-size:14px;font-weight:800;color:#087b2e}.result-content p,.empty-result{margin:0;font-size:16px;line-height:1.7;color:#5c695b}.recommendation{border-left:4px solid #ffb000;border-radius:6px;background:#fff9e8;padding:16px;font-size:16px;font-weight:800;color:#5f4310}@media(max-width:900px){.hero{grid-template-columns:1fr;min-height:auto;padding:28px 0}.brand-logo{width:min(320px,100%);margin-bottom:24px}}@media(max-width:560px){.hero{width:min(100% - 28px,1180px);gap:28px}h1{font-size:36px}.intro{font-size:16px}.upload-card,.result-card{padding:16px}.preview img,.empty-preview{min-height:240px;height:240px}.grade-row{align-items:flex-start;flex-direction:column}}