:root{font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Hiragino Kaku Gothic ProN",YuGothic,Meiryo,sans-serif;background:#f6f7f8;color:#282929;font-synthesis:none}
*{box-sizing:border-box} [hidden]{display:none!important} body{margin:0;min-height:100vh}
.app{max-width:510px;margin:0 auto;padding:max(env(safe-area-inset-top),9px) 12px calc(env(safe-area-inset-bottom) + 12px)}
.heading{display:flex;gap:9px;align-items:center;padding:3px 0 10px}
.brand-logo{width:68px;height:auto;display:block;flex:0 0 auto}
h1{font-size:18px;line-height:1.35;font-weight:750;letter-spacing:.005em;margin:0}
.panel{background:#fff;border:1px solid #e1e3e4;border-radius:12px;padding:12px;box-shadow:0 5px 17px rgba(25,31,33,.04)}
.camera-box{background:#1d282f;position:relative;height:151px;border-radius:9px;overflow:hidden}
#cameraVideo{display:block;width:100%;height:100%;object-fit:cover}
.camera-placeholder{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;text-align:center;padding:10px;color:#e9edef;pointer-events:none}
.camera-placeholder .camera-icon{font-size:33px;line-height:1}
.camera-placeholder p{font-size:12px;line-height:1.5;margin:0}
.ocr-guide{position:absolute;left:6%;right:6%;top:34%;height:31%;display:flex;align-items:center;justify-content:center;padding:3px;border:2px dashed #fff;border-radius:6px;font-size:11px;text-align:center;font-weight:700;color:#fff;text-shadow:0 1px 2px #000;background:rgba(0,0,0,.12);pointer-events:none}
.camera-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:9px}
button,.file-button{font:inherit;font-size:13px;font-weight:700;cursor:pointer;touch-action:manipulation;border-radius:9px;padding:7px 9px;min-height:43px;display:inline-flex;align-items:center;justify-content:center;text-align:center}
button:disabled{opacity:.48;cursor:not-allowed}
.secondary,.file-button{background:#f5f7f8;color:#303b42;border:1px solid #ccd3d7}
.ocr-button{width:100%;min-height:42px;margin-top:7px;background:#e7f3f3;color:#275960;border:1px solid #9cbfc1}
.hint{color:#5e6d75;font-size:12px;line-height:1.5;margin:8px 1px 0;min-height:18px}
.field-label{display:block;font-size:13px;font-weight:750;margin:14px 0 6px}
#trackingNumber{width:100%;height:51px;border:2px solid #a6b7bd;border-radius:9px;background:#fff;color:#20323a;padding:7px 9px;text-align:center;font-size:22px;font-weight:700;letter-spacing:.07em;font-variant-numeric:tabular-nums}
#trackingNumber::placeholder{color:#9aa6ab;opacity:1;font:inherit}
.numpad{margin-top:10px}.numpad-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:7px}
.numpad-grid button{min-height:47px;padding:5px;background:#f8f9fa;border:1px solid #d5dcdf;font-size:21px;font-weight:700;color:#30363a;box-shadow:0 1px 0 #e8ebed}
.numpad-grid button:active{background:#e8f1f3;transform:translateY(1px);box-shadow:none}
.numpad-grid .keypad-action{font-size:23px;background:#f0f3f5;color:#47565f}
.submit-actions{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:8px;margin-top:12px}
.primary{width:100%;min-height:49px;background:#275960;color:#fff;border:0;font-size:16px}
.primary:hover:not(:disabled){background:#1f4e54}
.clear{width:100%;min-height:49px;background:#fff;color:#48575e;border:1px solid #c4cdd1}
.message{font-size:13px;line-height:1.55;padding:10px 12px;border-radius:9px;margin-top:10px;background:#ebf3f6;color:#2d5866;border:1px solid #cce0e8}
.message[data-type="success"]{background:#e9f5ed;color:#225e3a;border-color:#c5e3cb}
.message[data-type="error"]{background:#fff0f0;color:#8d2d2d;border-color:#ebc9c9}
footer{text-align:center;font-size:10px;color:#77828a;margin-top:9px;line-height:1.4}
@media(max-width:375px){.app{padding:max(env(safe-area-inset-top),7px) 10px calc(env(safe-area-inset-bottom) + 10px)}.heading{gap:7px;padding-bottom:8px}.brand-logo{width:62px}h1{font-size:16px}.panel{padding:10px}.camera-box{height:137px}.numpad-grid{gap:6px}.numpad-grid button{min-height:44px}.camera-actions button,.file-button{min-height:41px}#trackingNumber{height:49px;font-size:21px}}
@media(max-height:740px){.camera-box{height:122px}.panel{padding:9px}.numpad-grid button{min-height:40px}.heading{padding-bottom:6px}.field-label{margin-top:10px}.hint{margin-top:5px}.submit-actions{margin-top:8px}.submit-actions button{min-height:44px}footer{display:none}}
@media(max-width:340px){h1{font-size:15px}.brand-logo{width:55px}#trackingNumber{font-size:19px;letter-spacing:.04em}}