:root{color-scheme:light;--ink:#15263d;--muted:#526379;--paper:#f3f6fa;--line:#cbd5e1;--blue:#1854bc;--navy:#123769;--red:#a42430;--white:#fff;font-family:system-ui,-apple-system,"Noto Sans JP",sans-serif;font-size:16px;line-height:1.7;background:var(--paper);color:var(--ink)}
.optional-fields{border-top:1px solid var(--line);margin:1rem 0;padding-top:.4rem}.optional-fields>summary{min-height:44px;cursor:pointer;padding:.5rem 0;font-weight:650}.optional-fields>label,.optional-fields>.form-grid{margin:.8rem 0}.optional-fields fieldset{margin:.6rem 0}.field-error{font-size:.875rem;font-weight:400;margin:.4rem 0;scroll-margin:2rem}.dialog-footer .form-error{flex-basis:100%;font-size:.875rem;margin:0;padding:.4rem .6rem}.dialog-footer{position:sticky;bottom:-1.5rem;background:white;z-index:2;padding-bottom:.6rem}.cost-row .cost-state{grid-column:1/-1;margin:0;font-size:.875rem}[aria-invalid=true]{border-color:var(--red);outline-color:var(--red)}@media(max-width:420px){.dialog-footer{bottom:-1rem}.dialog-footer .form-state{max-width:100%;font-size:.875rem}}
.guide-nav{display:flex;flex-wrap:wrap;gap:.6rem 1.2rem;margin-bottom:1rem}.guide-nav a{display:inline-flex;align-items:center;min-height:44px}.quick-guide{background:white;border:1px solid var(--line);border-radius:10px;padding:1rem;margin:1rem 0}.quick-guide summary{cursor:pointer;font-weight:650;min-height:44px}.quick-guide li,.manual li{margin:.7rem 0}.next-step{border-left:4px solid var(--blue);background:#e2edff;padding:1rem;margin:1rem 0}.manual{max-width:900px;margin:auto}.manual h1{font-size:2rem}.manual section{background:white;border:1px solid var(--line);border-radius:12px;padding:1.25rem;margin:1rem 0;scroll-margin-top:1rem}.manual h2{font-size:1.3rem}.manual nav ul{padding-left:1.4rem}.manual a{overflow-wrap:anywhere}.manual dd{margin:0 0 1rem}.manual dt{font-weight:700}#recommendations{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--line)}
*{box-sizing:border-box}body{margin:0}button,input,select,textarea{font:inherit}button,a,input,select,textarea{touch-action:manipulation}button{border:1px solid var(--line);border-radius:10px;background:#fff;padding:.55rem .9rem;color:var(--ink);cursor:pointer;min-height:44px}button:hover{background:#e9f0fb}button:disabled{opacity:.55;cursor:not-allowed}.primary{background:var(--blue);color:white;border-color:var(--blue);font-weight:650}.primary:hover{background:var(--navy)}.quiet{background:transparent}.danger{color:var(--red)}a{color:var(--blue);text-underline-offset:3px}a:hover{text-decoration-thickness:2px}:focus-visible{outline:3px solid #bb6200;outline-offset:3px}header{background:var(--navy);color:white;padding:1rem max(1.2rem,calc((100vw - 1280px)/2));display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{color:white;font-size:1.65rem;font-weight:800;letter-spacing:-.04em;text-decoration:none}.brand span{font-size:.875rem;letter-spacing:.03em;display:inline-block;margin-left:1rem;font-weight:400}.tag{font-size:.875rem;border:1px solid #6782a8;border-radius:99px;padding:.25rem .75rem}.layout{max-width:1280px;margin:auto;display:grid;grid-template-columns:270px minmax(0,1fr);min-height:90vh}aside{padding:2rem 1.4rem;border-right:1px solid var(--line)}main{padding:1.5rem 2.5rem 4rem;min-width:0}h1,h3{font-size:1.05rem;margin:0}h2{font-size:1.7rem;line-height:1.45;margin:.4rem 0;overflow-wrap:anywhere}p{margin:.5rem 0 1rem}.section-title,.actions,.status-row,.dialog-footer{display:flex;align-items:center;justify-content:space-between;gap:.65rem;flex-wrap:wrap}.full{width:100%;margin:1rem 0}.muted,.notice,#trip-summary{color:var(--muted);font-size:.875rem}.notice{border-left:3px solid #53799e;padding-left:.8rem;margin-top:1.8rem}.status-row{font-size:.875rem;margin-bottom:1.8rem}.status-row p{margin:0}.status-row button{font-size:.875rem}.welcome{border-top:5px solid var(--blue);background:white;border-radius:6px 6px 18px 18px;padding:3rem 2rem;margin-top:2rem}.welcome h2{font-size:2rem}.welcome p{margin:1rem 0 2rem}.eyebrow{font-size:.875rem;color:var(--blue);letter-spacing:.14em;font-weight:700}.trip-heading{display:flex;justify-content:space-between;gap:1rem;align-items:flex-start;flex-wrap:wrap}.purpose{white-space:pre-wrap;overflow-wrap:anywhere}.budget{background:var(--navy);color:white;display:grid;grid-template-columns:1fr 1fr;gap:.8rem;padding:1.4rem;border-radius:14px;margin:1.5rem 0 2rem}.budget span{font-size:.875rem}.budget strong{font-size:1.5rem;display:block;overflow-wrap:anywhere}.budget p{grid-column:1/-1;font-size:.875rem;margin:0;color:#e0e9f8}.itinerary-tools{margin-bottom:.8rem}#trip-list{display:grid;gap:.6rem}#trip-list button{text-align:left;width:100%;padding:.8rem;overflow-wrap:anywhere}#trip-list button[aria-current=true]{background:#e2edff;border-color:var(--blue);border-left:4px solid var(--blue)}#trip-list small{display:block;color:var(--muted);font-size:.875rem}.day{margin:1.8rem 0}.day-title{display:flex;align-items:center;gap:.8rem;border-bottom:1px solid var(--line);padding-bottom:.6rem}.day-number{display:inline-flex;align-items:center;justify-content:center;background:var(--blue);color:white;border-radius:8px;min-width:44px;min-height:44px;font-weight:700}.day-title h3{font-size:1.1rem}.empty-day{color:var(--muted);padding:1rem;border:1px dashed var(--line);border-radius:8px;margin-top:.8rem}.item{background:white;border:1px solid var(--line);border-left:4px solid #7fa3d4;border-radius:12px;padding:1.1rem;margin:.8rem 0}.item.complete{border-left-color:#34734e}.item-head{display:flex;gap:1rem;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}.item h4{margin:0;font-size:1.05rem;overflow-wrap:anywhere}.item .time{font-size:.875rem;color:var(--muted)}.badge{display:inline-block;font-size:.875rem;border-radius:6px;padding:.1rem .5rem;background:#edf2fb;margin:.4rem .3rem .4rem 0}.badge.done{background:#e1f2e8;color:#155b32}.item p{overflow-wrap:anywhere;white-space:pre-wrap}.item .memo{font-size:.9rem;color:var(--muted)}.item-links{display:flex;flex-wrap:wrap;gap:1rem;font-size:.9rem;margin:.5rem 0 1rem}.item-actions{display:flex;flex-wrap:wrap;gap:.45rem}.item-actions button{font-size:.875rem}.error{background:#fff0f1;color:#8a1420;border:1px solid #e3a8ad;padding:.8rem;border-radius:8px;overflow-wrap:anywhere}[hidden]{display:none!important}dialog{width:min(640px,calc(100% - 24px));max-height:90dvh;border:1px solid var(--line);border-radius:16px;padding:1.5rem;color:var(--ink);background:#fff}dialog::backdrop{background:#0b1b38aa}dialog h2{font-size:1.35rem}form>label,form>.form-grid{margin:1rem 0}label{display:block;font-size:.95rem;font-weight:650}label span{font-size:.875rem;color:var(--muted);font-weight:400}input,select,textarea{display:block;width:100%;border:1px solid #8293aa;border-radius:7px;padding:.55rem;margin-top:.35rem;background:white;color:var(--ink);min-width:0}textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}fieldset{border:1px solid var(--line);border-radius:10px;padding:1rem;margin:1.4rem 0}legend{font-size:.95rem;font-weight:650}.cost-row{display:grid;grid-template-columns:1fr 1.3fr;gap:1rem;align-items:center;margin:.6rem 0}.check{display:flex;gap:.6rem;align-items:center}.check input{width:20px;height:20px;margin:0}.dialog-footer{border-top:1px solid var(--line);padding-top:1rem;margin-top:1.5rem}.form-state{font-size:.875rem;color:var(--muted)}.skip{position:fixed;top:-80px;left:1rem;background:white;padding:.8rem;z-index:10}.skip:focus{top:0}
@media(max-width:800px){.layout{grid-template-columns:1fr}aside{border-right:0;border-bottom:1px solid var(--line);padding:1rem 1.2rem}aside .notice{margin-top:1rem}#trip-list{grid-template-columns:repeat(auto-fit,minmax(160px,1fr))}main{padding:1rem 1.2rem 3rem}.brand span{display:none}.welcome{padding:1.5rem}.welcome h2{font-size:1.65rem}.tag{font-size:.875rem}header{padding:.8rem 1.2rem}}
@media(max-width:420px){.form-grid{grid-template-columns:1fr}.budget{grid-template-columns:1fr}dialog{padding:1rem}.cost-row{grid-template-columns:1fr}header{flex-wrap:wrap}.item{padding:.8rem}.budget strong{font-size:1.3rem}}
.brand{display:flex;align-items:center;gap:.45rem}.brand-mark{width:36px;height:36px;flex:none}.season-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:1rem;margin:1rem 0 2rem}.season-card{background:white;border:1px solid var(--line);border-top:4px solid var(--blue);border-radius:12px;padding:1.2rem;display:flex;flex-direction:column;gap:.6rem}.season-card h3{font-size:1.35rem}.season-card p{margin:0}.season-card .actions{margin-top:auto;justify-content:flex-start}.season-card button{font-size:.875rem}.hotel-search{border:1px solid var(--line);border-radius:14px;background:white;padding:1.2rem;margin:1.5rem 0}.hotel-search h3{font-size:1.1rem}.hotel-search a{overflow-wrap:anywhere}