:root{--bg-page:#f2eee9;--bg-app:#fffdf9;--bg-surface:#fff;--bg-muted:#f5f1ec;--border:#e9e2d8;--text:#222;--text-muted:#716b64;--accent:#ff665a;--accent-soft:#fff9f7;--navy:#16324f;--success:#4fae69;--success-soft:#eaf7ee;--warning:#e4a43a;--warning-soft:#fff6df;--danger:#d85d62;--danger-soft:#fcebed;--radius-small:8px;--radius-control:13px;--radius-card:18px;--radius-panel:20px;--radius-hero:26px;--space-1:4px;--space-2:8px;--space-3:12px;--space-4:16px;--space-5:20px;--space-6:24px;--space-8:32px;--shadow-panel:0 2px 12px #2222220f;--font:"Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;color:var(--text);font-family:var(--font);font-synthesis:none}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg-page);min-width:320px;color:var(--text);font:14px/1.55 var(--font);margin:0}button,input,textarea,select{color:inherit;font:inherit}button,a{-webkit-tap-highlight-color:transparent}button:focus-visible,input:focus-visible,a:focus-visible{outline:3px solid var(--navy);outline-offset:3px}.app-shell{border-radius:var(--radius-hero);background:var(--bg-app);width:min(1180px,100%);min-height:1050px;margin:0 auto;overflow:hidden}main{padding:26px 66px 44px}.event-hero{justify-content:space-between;align-items:center;gap:var(--space-8);border-radius:var(--radius-hero);background:var(--hero-background);min-height:310px;padding:34px;display:flex}.event-hero__copy{min-width:0;padding-top:var(--space-4);align-self:stretch}.event-category{color:var(--hero-accent);margin:0 0 18px;font-size:13px;font-weight:700}.event-hero h1{min-height:60px;margin:0;font-size:clamp(24px,3vw,30px);line-height:1.55}.event-description{max-width:520px;margin:var(--space-2) 0 0;color:var(--text-muted);font-size:15px}.event-meta{margin:var(--space-5) 0 0;gap:var(--space-4);color:var(--text-muted);flex-wrap:wrap;padding:0;list-style:none;display:flex}.event-art{flex:0 0 360px;width:360px;height:242px;position:relative}.event-art__photo{color:#fff;border:7px solid #fff;border-radius:16px;place-items:center;width:210px;height:160px;font-size:38px;display:grid;position:absolute;box-shadow:0 8px 14px #1f2e3d2e}.event-art__photo--primary{background:var(--hero-photo-primary);top:0;right:18px;transform:rotate(-5deg)}.event-art__photo--secondary{background:var(--hero-photo-secondary);bottom:0;left:0;transform:rotate(7deg)}.rsvp-layout{margin-top:var(--space-5);gap:var(--space-5);grid-template-columns:minmax(0,720px) minmax(270px,308px);align-items:stretch;display:grid}.response-panel,.summary-panel{border-radius:var(--radius-panel);background:var(--bg-surface);box-shadow:var(--shadow-panel)}.response-panel{min-height:650px;padding:var(--space-6)}.response-panel__header h2,.comments-section h2{margin:0;font-size:22px;line-height:1.55}.response-panel__header>p{color:var(--text-muted);margin:0}.respondent-fields{min-height:116px;margin-top:var(--space-4);border:1px solid var(--border);background:#fffdfb;border-radius:14px;grid-template-columns:repeat(2,minmax(0,1fr));align-items:start;gap:14px;padding:8px 14px;display:grid}.respondent-field{gap:var(--space-1);min-width:0;font-size:13px;font-weight:700;display:grid}.respondent-field input,.respondent-field textarea{width:100%;padding:7px var(--space-3);color:var(--text);background:#fff;border:1px solid #dcd3c7;border-radius:10px;font-weight:400}.respondent-field input{min-height:34px}.respondent-field textarea{resize:none;min-height:74px}.respondent-field input::placeholder,.respondent-field textarea::placeholder{color:var(--text-muted);opacity:1}.avatar-list{align-items:center;gap:var(--space-2);flex-wrap:wrap;margin:14px 0 13px;padding:0;list-style:none;display:flex}.avatar{--avatar-color:#ffe0d5;--avatar-color-soft:#ffe8e0;background:var(--avatar-color);color:#1f2933;border:3px solid #fff;border-radius:50%;flex:none;place-items:center;width:42px;height:42px;font-size:16px;font-weight:700;display:grid;position:relative}.avatar[data-color="1"]{--avatar-color:#d8edf1;--avatar-color-soft:#dbf2f5}.avatar[data-color="2"]{--avatar-color:#f7e4ad;--avatar-color-soft:#ffedb3}.avatar[data-color="3"]{--avatar-color:#dfd7f2;--avatar-color-soft:#e8def5}.avatar[data-color="4"]{--avatar-color:#d7eedc;--avatar-color-soft:#def5e0}.avatar[data-answered=false]{color:#a7a19a;background:#fff;border:2px dashed #b8b1a9}.avatar span{z-index:1;position:relative}.avatar:after{z-index:10;background:var(--text);color:#fff;content:attr(data-tooltip);opacity:0;pointer-events:none;visibility:hidden;border-radius:4px;min-width:max-content;padding:5px 8px;font-size:12px;font-weight:400;line-height:1.3;position:absolute;bottom:calc(100% + 7px);left:50%;transform:translate(-50%)}.avatar:hover:after,.avatar:focus-visible:after{opacity:1;visibility:visible}.avatar:focus-visible{outline:3px solid var(--navy);outline-offset:2px}.avatar-list[data-size=small]{align-content:flex-start;gap:2px;min-height:28px;margin:8px 0}.avatar-list[data-size=small] .avatar{background:#fff;border:1px solid #e6e3de;width:28px;height:28px;font-size:11px;font-weight:400}.avatar-list[data-size=small] .avatar:before{background:var(--avatar-color-soft);content:"";border-radius:50%;position:absolute;inset:2px}.date-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:13px;display:grid}.date-card{border:1px solid var(--border);border-radius:var(--radius-card);background:#fff;flex-direction:column;min-width:0;min-height:260px;padding:14px 16px 12px;display:flex}.date-card[data-featured=true]{border:2px solid var(--accent);background:var(--accent-soft);padding:12px 14px 10px}.date-card__featured{min-height:19px;color:var(--accent);margin:0;font-size:12px;font-weight:700}.date-card:not([data-featured=true]) .date-card__heading{margin-top:28px}.date-card__heading{align-items:baseline;gap:var(--space-5);display:flex}.date-card__heading h3{margin:0;font-size:31px;line-height:1.55}.date-card__heading span{color:var(--text-muted);font-weight:700}.date-card__time{color:var(--text-muted);margin:-2px 0 0;font-size:15px}.response-counts{color:var(--text-muted);word-spacing:3px;margin:8px 0 0;font-size:12px}.response-counts span[data-status=available]{color:#08aa35}.response-counts span[data-status=maybe]{color:#f0cc09}.response-counts span[data-status=unavailable]{color:#dc2431}.availability-options{gap:var(--space-1);grid-template-columns:repeat(3,minmax(0,1fr));margin-top:auto;display:grid}.availability-option{border:1px solid var(--border);border-radius:var(--radius-small);width:100%;min-height:34px;color:var(--text-muted);cursor:pointer;text-align:center;background:#fff;padding:0 4px;font-size:11px;font-weight:700;line-height:1.2}.availability-option:hover{border-color:var(--text-muted)}.availability-option[data-selected=true][data-status=available]{border-color:var(--success);background:var(--success-soft);color:var(--success)}.availability-option[data-selected=true][data-status=maybe]{border-color:var(--warning);background:var(--warning-soft);color:var(--warning)}.availability-option[data-selected=true][data-status=unavailable]{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}.submit-button{width:100%;min-height:40px;margin-top:var(--space-4);border:1px solid var(--accent);border-radius:var(--radius-control);background:var(--accent);color:#fff;cursor:pointer;font-size:15px;font-weight:700}.submit-button:hover{filter:brightness(.96)}.submit-button:disabled{border-color:var(--border);background:var(--bg-muted);color:var(--text-muted);cursor:not-allowed}.status-notice{margin:var(--space-4) 0 0;padding:var(--space-2) var(--space-3);border:1px solid var(--success);border-radius:var(--radius-small);background:var(--success-soft);color:#256b38}.status-notice[data-tone=error]{border-color:var(--danger);background:var(--danger-soft);color:#9e3238}.summary-panel{min-height:650px;padding:var(--space-6)}.best-date{background:var(--navy);color:#e6e6e6;border-radius:16px;flex-direction:column;min-height:130px;padding:16px 20px;display:flex}.best-date p{margin:0;font-size:12px;font-weight:700}.best-date strong{color:#fff;font-size:40px;line-height:1.55}.best-date span{font-size:14px}.comments-section{margin-top:var(--space-5)}.comments-section h2{font-size:18px}.comment-list{margin:var(--space-1) 0 0;padding:0;list-style:none}.comment-list li{border-bottom:1px solid #e7e3de;grid-template-columns:36px minmax(0,1fr);gap:10px;min-height:65px;padding:12px 0;display:grid}.comment-avatar{color:#263238;background:#e7edf0;border-radius:999px;place-items:center;width:36px;height:36px;font-weight:700;display:grid}.comment-list strong{display:block}.comment-list p,.comments-empty{color:#6f7275;margin:0;line-height:1.35}.empty-state{margin-top:var(--space-5);padding:var(--space-8);border:1px dashed var(--border);border-radius:var(--radius-card);text-align:center}.empty-state h3,.empty-state p{margin:0}.empty-state p{color:var(--text-muted)}@media (width<=1050px){main{padding-right:var(--space-8);padding-left:var(--space-8)}.event-art{flex-basis:300px;width:300px}.event-art__photo{width:180px;height:145px}}@media (width<=900px){.app-shell{border-radius:0}.rsvp-layout{grid-template-columns:1fr}.response-panel,.summary-panel{min-height:auto}.summary-panel{gap:var(--space-6);grid-template-columns:minmax(230px,.7fr) 1fr;display:grid}.comments-section{margin-top:0}}@media (width<=700px){main{padding:var(--space-4)}.event-hero{min-height:0;padding:var(--space-6)}.event-art{display:none}.event-meta{margin-top:var(--space-5);gap:var(--space-1);display:grid}.response-panel,.summary-panel{padding:var(--space-5)}.respondent-fields{grid-template-columns:1fr}.date-grid{gap:var(--space-3);grid-template-columns:1fr}.date-card{min-height:250px}.date-card:not([data-featured=true]) .date-card__heading{margin-top:0}.summary-panel{display:block}.comments-section{margin-top:var(--space-5)}}@media (width<=420px){.event-hero h1{font-size:23px}.response-panel__header h2{font-size:20px}.avatar-list:not([data-size=small]){gap:var(--space-1)}.avatar-list:not([data-size=small]) .avatar{width:36px;height:36px;font-size:14px}}@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}