:root{--night:#061b2b;--navy:#082f4b;--blue:#078bc1;--cyan:#61d3ed;--ice:#edf8fb;--red:#cc243f;--ink:#102c3d;--muted:#526b79;--line:#bfd5df;--white:#fff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;background:linear-gradient(180deg,#e9f7fb 0%,#fff 48%);color:var(--ink);font-family:"Hiragino Kaku Gothic ProN","Yu Gothic","Noto Sans JP",sans-serif;font-size:20px;line-height:1.65;-webkit-font-smoothing:antialiased}
body.large-text{font-size:23px}
button,input{font:inherit}
button{cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible+label{outline:4px solid #f5b700;outline-offset:4px}
.skip-link{position:fixed;top:-100px;left:1rem;z-index:100;padding:.6rem 1rem;background:#fff;color:var(--night)}
.skip-link:focus{top:1rem}
.app-header{min-height:84px;padding:12px max(18px,env(safe-area-inset-right)) 12px max(18px,env(safe-area-inset-left));display:flex;align-items:center;justify-content:space-between;gap:1rem;background:var(--night);color:#fff}
.app-brand{display:flex;align-items:center;gap:.65rem;color:#fff;text-decoration:none;font-size:.78rem;font-weight:900;line-height:1.3}
.app-brand img{width:48px;height:54px;object-fit:contain;padding:3px;border-radius:8px;background:#fff}
.text-size-button{min-height:50px;padding:.55rem .9rem;border:2px solid rgba(255,255,255,.65);border-radius:8px;background:transparent;color:#fff;font-size:.8rem;font-weight:800}
.text-size-button[aria-pressed="true"]{background:#fff;color:var(--navy)}
.app-main{width:min(100% - 28px,780px);margin:clamp(24px,6vw,54px) auto}
.screen{display:none;padding:clamp(24px,5vw,52px);background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 24px 70px rgba(8,47,75,.13)}
.screen.is-active{display:block}
.eyebrow{margin:0 0 .8rem;color:var(--blue);font-size:.72rem;font-weight:900;letter-spacing:.14em}
h1{margin:0;color:var(--navy);font-size:clamp(2.65rem,10vw,4.8rem);line-height:1.08;letter-spacing:-.055em}
.start-lead{margin:1.3rem 0 0;font-size:1.18rem}
.start-lead strong{color:var(--blue)}
.start-points{margin:1.7rem 0;display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.start-points div{padding:1rem;background:var(--ice)}
.start-points b,.start-points span{display:block}
.start-points b{color:var(--navy);font-size:1.12rem}
.start-points span{margin-top:.15rem;color:var(--muted);font-size:.78rem}
.age-note{margin:0 0 1.5rem;padding:1rem 1.1rem;display:grid;gap:.3rem;border-left:6px solid var(--blue);background:#f6fafc;font-size:.82rem}
.age-note strong{color:var(--navy);font-size:.9rem}
.primary-button,.secondary-button{min-height:64px;padding:.75rem 1.25rem;border-radius:10px;font-weight:900}
.primary-button{border:2px solid var(--blue);background:var(--blue);color:#fff}
.primary-button:not(:disabled):hover{background:#056f9b;border-color:#056f9b}
.primary-button:disabled{border-color:#aab9c0;background:#aab9c0;color:#f7f7f7;cursor:not-allowed}
.secondary-button{border:2px solid var(--navy);background:#fff;color:var(--navy)}
.start-screen>.primary-button{width:100%;display:flex;align-items:center;justify-content:space-between;font-size:1.22rem}
.medical-note{margin:1rem 0 0;color:var(--muted);font-size:.75rem;text-align:center}
.progress-copy{display:flex;justify-content:space-between;gap:1rem;color:var(--navy);font-size:.82rem;font-weight:900}
.progress-track{height:12px;margin:.5rem 0 1.8rem;overflow:hidden;border-radius:20px;background:#d9e8ee}
.progress-track i{display:block;width:20%;height:100%;border-radius:inherit;background:linear-gradient(90deg,var(--blue),var(--cyan));transition:width .25s ease}
fieldset{min-width:0;margin:0;padding:0;border:0}
legend{width:100%;padding:0;color:var(--navy);font-size:clamp(1.35rem,5vw,2rem);font-weight:900;line-height:1.5}
.question-detail{margin:.7rem 0 0;padding:1rem;border-left:6px solid var(--cyan);background:var(--ice);font-size:1.05rem;font-weight:800}
.answer-list{margin-top:1.5rem;display:grid;gap:.75rem}
.answer-option{position:relative}
.answer-option input{position:absolute;opacity:0;pointer-events:none}
.answer-option label{min-height:64px;padding:.85rem 1rem;display:grid;grid-template-columns:34px minmax(0,1fr);gap:.75rem;align-items:center;border:2px solid #9cb7c4;border-radius:12px;background:#fff;color:var(--ink);font-size:1rem;font-weight:800;line-height:1.45;cursor:pointer}
.answer-option label::before{content:"";width:28px;height:28px;border:3px solid #7895a3;border-radius:50%;background:#fff;box-shadow:inset 0 0 0 5px #fff}
.answer-option input:checked+label{border-color:var(--blue);background:#e8f7fb;color:var(--navy);box-shadow:0 0 0 2px var(--blue)}
.answer-option input:checked+label::before{border-color:var(--blue);background:var(--blue)}
.selection-hint{min-height:1.7em;margin:1rem 0;color:var(--muted);font-size:.8rem}
.question-actions,.result-actions{display:grid;grid-template-columns:minmax(110px,.55fr) minmax(170px,1fr);gap:.8rem}
.score-display{margin:1.6rem 0;padding:1.3rem;display:flex;align-items:baseline;justify-content:center;gap:.5rem;border-radius:16px;background:var(--ice);color:var(--navy)}
.score-display span{font-weight:900}
.score-display strong{color:var(--blue);font-size:clamp(4rem,18vw,7rem);line-height:1}
.score-display small{font-size:.9rem;font-weight:900}
.result-message{padding:1.3rem 1.4rem;border-radius:14px;background:#f2f8fa}
.result-message.high{border:3px solid var(--red);background:#fff1f3}
.result-message h2{margin:0 0 .5rem;color:var(--navy);font-size:1.35rem;line-height:1.4}
.result-message.high h2{color:#a31830}
.result-message p{margin:.45rem 0 0}
.show-staff{margin:1rem 0 1.5rem;padding:1.1rem;border-left:6px solid var(--blue);background:#e7f6fa;display:grid;gap:.25rem}
.show-staff strong{color:var(--navy)}
.show-staff span{font-size:.82rem;color:var(--muted)}
.result-actions{grid-template-columns:1fr 1fr}
.back-patients{display:block;margin-top:1.2rem;color:var(--blue);font-size:.85rem;font-weight:800;text-align:center}
.app-footer{width:min(100% - 28px,780px);margin:0 auto;padding:0 0 32px;color:var(--muted);font-size:.68rem;line-height:1.55}
.app-footer p{margin:.6rem 0}
@media(max-width:560px){body{font-size:19px}.app-header{min-height:76px}.app-brand img{width:40px;height:45px}.text-size-button{max-width:144px;padding:.45rem .65rem;font-size:.68rem}.app-main{width:min(100% - 20px,780px);margin:18px auto}.screen{padding:23px 18px;border-radius:14px}.start-points{grid-template-columns:1fr}.question-actions{position:sticky;bottom:0;margin:0 -10px -10px;padding:12px 10px calc(10px + env(safe-area-inset-bottom));background:rgba(255,255,255,.95);box-shadow:0 -10px 28px rgba(8,47,75,.08);backdrop-filter:blur(10px)}.result-actions{grid-template-columns:1fr}.answer-option label{min-height:68px}}
@media(max-width:370px){body{font-size:18px}.app-brand span{display:none}.question-actions{grid-template-columns:100px 1fr}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.progress-track i{transition:none}}
@media print{body{background:#fff}.app-header,.result-actions,.back-patients,.start-screen,.question-screen{display:none!important}.app-main{width:100%;margin:0}.screen.result-screen{display:block!important;border:0;box-shadow:none}.app-footer{width:100%}}