:root{--bg:#f7f8fa;--surface:#fff;--ink:#202428;--muted:#6b7075;--line:rgba(32,36,40,.06);--green:#087a3c;--blue:#9dcbdc;--soft:#f0f1f2;--danger:#a33b2f;--r-xl:28px;--safe-bottom:env(safe-area-inset-bottom,0px)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}html{background:#eef0f2}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,"Noto Sans JP",sans-serif;background:var(--bg);color:var(--ink);min-height:100dvh}button,input,textarea{font:inherit}button{cursor:pointer}img,video{display:block;width:100%}.app{max-width:480px;margin:0 auto;min-height:100dvh;background:var(--bg);position:relative;overflow-x:hidden}.app-header{position:sticky;top:0;z-index:30;padding:max(14px,env(safe-area-inset-top)) 18px 12px;background:rgba(247,248,250,.90);backdrop-filter:blur(18px);display:flex;align-items:center;justify-content:space-between}.wordmark{font-size:28px;font-weight:760;letter-spacing:-.065em}.header-action{width:44px;height:44px;border-radius:50%;border:1px solid var(--line);background:#fff;display:grid;place-items:center}.header-avatar{width:42px;height:42px;border-radius:50%;object-fit:cover}.main{padding:6px 16px calc(112px + var(--safe-bottom))}.screen{display:none;animation:fade .2s ease}.screen.active{display:block}@keyframes fade{from{opacity:.4;transform:translateY(4px)}to{opacity:1;transform:none}}.eyebrow{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:6px 2px 9px}.h1{font-size:38px;line-height:.98;letter-spacing:-.055em;margin:0 2px 20px;font-weight:730}.h2{font-size:22px;letter-spacing:-.035em;margin:0 0 6px}.body{font-size:14px;line-height:1.55;color:#333}.muted{color:var(--muted)}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;margin-bottom:14px}.card-pad{padding:18px}.poster-card{perspective:1200px;height:min(65vh,610px);min-height:500px}.poster-inner{position:relative;width:100%;height:100%;transform-style:preserve-3d;transition:transform .55s cubic-bezier(.2,.75,.2,1)}.poster-card.flipped .poster-inner{transform:rotateY(180deg)}.poster-face{position:absolute;inset:0;backface-visibility:hidden;background:#f5f6f7;border-radius:var(--r-xl);overflow:hidden}.poster-front img{height:100%;object-fit:cover}.poster-back{transform:rotateY(180deg);padding:24px;display:flex;flex-direction:column;justify-content:space-between}.poster-hint{position:absolute;right:16px;bottom:16px;background:rgba(255,255,255,.88);border:1px solid var(--line);padding:10px 14px;border-radius:999px;font-size:12px;backdrop-filter:blur(10px)}.date-big{font-size:54px;line-height:.9;letter-spacing:-.075em;font-weight:720}.date-year{font-size:13px;letter-spacing:.04em}.location-title{font-size:24px;line-height:1.04;letter-spacing:-.035em;font-weight:650}.info-row{display:flex;justify-content:space-between;gap:16px;padding:15px 0;border-top:1px solid var(--line);font-size:13px}.info-row span:first-child{color:var(--muted)}.video-card video{aspect-ratio:9/12;object-fit:cover;background:#ddd}.section-head{display:flex;justify-content:space-between;align-items:end;margin:26px 2px 10px}.section-head h2{margin:0;font-size:20px;letter-spacing:-.035em}.tiny{font-size:11px;color:var(--muted)}.primary,.secondary{width:100%;min-height:52px;border-radius:16px;border:0;padding:0 18px;font-weight:650}.primary{background:var(--ink);color:white}.primary.green{background:var(--green)}.primary:disabled,.secondary:disabled{opacity:.35;cursor:not-allowed}.secondary{background:#fff;border:1px solid var(--line);color:var(--ink)}.split{display:grid;grid-template-columns:1fr 1fr;gap:10px}.popup-hero{border-radius:var(--r-xl);overflow:hidden;background:#f0f1f2;margin-bottom:14px}.popup-hero img{aspect-ratio:4/5;object-fit:cover}.popup-info{margin-top:-54px;position:relative;background:white;border-radius:var(--r-xl) var(--r-xl) 0 0;padding:20px 18px 18px}.map-mini{height:155px;border-radius:20px;background:linear-gradient(135deg,#f1f3f4,#e2e8e5);position:relative;overflow:hidden;display:grid;place-items:center}.map-mini:before,.map-mini:after{content:"";position:absolute;width:140%;height:1px;background:rgba(0,0,0,.13);transform:rotate(-17deg)}.map-mini:after{transform:rotate(28deg)}.pin{z-index:2;width:44px;height:44px;border-radius:50% 50% 50% 10%;background:var(--green);transform:rotate(-45deg);display:grid;place-items:center}.pin:after{content:"";width:12px;height:12px;background:white;border-radius:50%}.menu-item{padding:15px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:18px}.menu-name{font-weight:620;font-size:14px}.menu-desc{font-size:12px;color:var(--muted);margin-top:4px}.menu-price{font-size:13px;white-space:nowrap}.room-status{padding:18px;border-radius:var(--r-xl);background:#202428;color:white;margin-bottom:14px}.room-status.open{background:var(--green)}.live-dot{width:8px;height:8px;background:#fff;border-radius:50%;display:inline-block;margin-right:7px;box-shadow:0 0 0 5px rgba(255,255,255,.13)}.room-title{font-size:34px;letter-spacing:-.055em;margin:18px 0 6px}.room-actions{display:flex;gap:10px;margin-top:18px}.room-actions button{flex:1}.post{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;margin-bottom:14px}.post-head{display:flex;align-items:center;gap:10px;padding:14px}.post-avatar{width:38px;height:38px;border-radius:13px;object-fit:cover;background:var(--soft)}.post-user{font-size:13px;font-weight:650}.post-time{font-size:10px;color:var(--muted);margin-top:2px}.post-img{aspect-ratio:1/1;object-fit:cover;background:#eee}.post-copy{padding:14px 14px 8px;font-size:14px;line-height:1.45}.post-controls{display:flex;align-items:center;gap:8px;padding:0 10px 10px}.icon-btn{min-width:44px;height:44px;border:0;background:transparent;border-radius:14px;display:flex;align-items:center;justify-content:center;gap:6px;font-size:12px}.icon-btn.liked{color:var(--green);background:#eef7f0}.comments{padding:0 14px 14px}.comment{display:flex;gap:8px;font-size:12px;padding:5px 0}.comment b{white-space:nowrap}.comment-form{display:flex;gap:8px;margin-top:8px}.comment-form input{flex:1;min-width:0;border:1px solid var(--line);background:#f5f6f7;border-radius:14px;padding:12px 13px;font-size:16px}.comment-form button{border:0;background:#202428;color:#fff;border-radius:14px;padding:0 14px}.empty{padding:42px 22px;text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-xl)}.empty-mark{font-size:56px;line-height:1;margin-bottom:14px;color:var(--green)}.id-card{border-radius:var(--r-xl);background:#fff;border:1px solid var(--line);padding:16px;display:grid;grid-template-columns:120px 1fr;gap:16px}.id-avatar{width:120px;aspect-ratio:3/4;border-radius:22px;object-fit:cover;background:#eee}.id-kicker{font-size:10px;letter-spacing:.14em;color:var(--muted)}.id-number{font-size:34px;letter-spacing:-.055em;font-weight:720;margin:4px 0 20px}.id-stat{margin-top:10px}.id-stat b{display:block;font-size:22px;letter-spacing:-.04em}.id-stat small{font-size:10px;color:var(--muted);letter-spacing:.1em;text-transform:uppercase}.journey{padding:18px;background:white;border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden}.journey-track{display:flex;align-items:center;gap:0;overflow-x:auto;padding:18px 8px 8px;scrollbar-width:none}.journey-node{flex:0 0 84px;text-align:center;position:relative}.journey-node:not(:last-child):after{content:"";position:absolute;left:54px;top:20px;width:60px;border-top:2px dashed rgba(8,122,60,.55)}.journey-dot{width:42px;height:42px;margin:0 auto 8px;border-radius:50%;border:2px solid var(--green);background:white;display:grid;place-items:center;position:relative;z-index:2;overflow:hidden}.journey-dot img{width:100%;height:100%;object-fit:cover}.journey-node.done .journey-dot{background:var(--green);color:#fff}.journey-node.future .journey-dot{border-color:#bbb;color:#aaa}.journey-label{font-size:10px;line-height:1.2}.journey-city{font-weight:650}.journey-date{color:var(--muted);margin-top:2px}.auth-card{padding:24px;background:white;border:1px solid var(--line);border-radius:var(--r-xl)}.email-input{width:100%;border:1px solid var(--line);background:#f5f6f7;border-radius:16px;padding:15px;font-size:16px;margin:15px 0 10px;outline:none}.email-input:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(8,122,60,.1)}.avatar-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:14px}.avatar-choice{border:2px solid transparent;border-radius:18px;padding:3px;background:transparent}.avatar-choice img{aspect-ratio:1;border-radius:14px;object-fit:cover}.avatar-choice.selected{border-color:var(--green)}/* Floating glass navigation; opaque fallback for browsers without backdrop blur. */
.bottom-nav{position:fixed;left:50%;transform:translateX(-50%);bottom:calc(12px + var(--safe-bottom));z-index:50;width:min(452px,calc(100% - 24px));padding:0;background:transparent;border:0;border-radius:999px}
.nav-inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:3px;padding:5px;border:1px solid rgba(255,255,255,.88);border-radius:999px;background:rgba(255,255,255,.96);box-shadow:0 12px 36px rgba(25,32,40,.12),inset 0 1px 1px rgba(255,255,255,.9)}
@supports ((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){.nav-inner{background:rgba(255,255,255,.48);-webkit-backdrop-filter:blur(24px) saturate(160%);backdrop-filter:blur(24px) saturate(160%)}}
.nav-btn{border:0;background:transparent;min-width:0;min-height:54px;padding:5px 2px;border-radius:999px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;color:#343a40;font-size:12px;font-weight:600;line-height:1.2;position:relative;transition:background .2s ease,transform .2s ease,color .2s ease}
.nav-btn svg{width:23px;height:23px;stroke-width:2}
.nav-btn.active{background:rgba(32,38,44,.09);color:#202428}
.nav-btn.active svg{stroke-width:2.4}
.nav-btn:active{transform:scale(.96)}
.nav-btn:focus-visible{outline:2px solid var(--green);outline-offset:2px}
.nav-badge{position:absolute;width:7px;height:7px;background:var(--green);border-radius:50%;top:9px;left:calc(50% + 12px);display:none;box-shadow:0 0 0 2px rgba(255,255,255,.8)}
.nav-badge.show{display:block}
@media(prefers-reduced-motion:reduce){.nav-btn{transition:none}}
@media(prefers-reduced-transparency:reduce){.nav-inner{background:#ffffff;-webkit-backdrop-filter:none;backdrop-filter:none}}
.sheet-wrap{position:fixed;inset:0;z-index:80;background:rgba(0,0,0,.25);display:none;align-items:flex-end;justify-content:center}.sheet-wrap.open{display:flex}.sheet{width:min(480px,100%);max-height:90dvh;overflow:auto;background:var(--bg);border-radius:30px 30px 0 0;padding:10px 16px calc(24px + var(--safe-bottom));animation:sheet .25s ease}.sheet-grip{width:42px;height:5px;border-radius:999px;background:#bbb;margin:2px auto 18px}@keyframes sheet{from{transform:translateY(20%);opacity:.4}to{transform:none;opacity:1}}.sheet h2{font-size:26px;letter-spacing:-.04em}.file-drop{border:1px dashed #aaa;border-radius:22px;padding:22px;text-align:center;background:#fff;margin:14px 0}.file-drop input{width:100%}.caption-input{width:100%;min-height:100px;border:1px solid var(--line);background:#fff;border-radius:18px;padding:14px;font-size:16px;resize:vertical}.toast{position:fixed;left:50%;bottom:calc(112px + var(--safe-bottom));z-index:100;transform:translate(-50%,12px);background:#202428;color:white;padding:11px 15px;border-radius:999px;font-size:12px;opacity:0;pointer-events:none;transition:.2s}.toast.show{opacity:1;transform:translate(-50%,0)}.loading{display:inline-block;width:16px;height:16px;border:2px solid currentColor;border-right-color:transparent;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error{color:var(--danger);font-size:12px;margin-top:8px}.hidden{display:none!important}@media(min-width:481px){body{padding:22px 0}.app{border-radius:38px;box-shadow:0 30px 80px rgba(0,0,0,.16);min-height:calc(100dvh - 44px);overflow:hidden}.bottom-nav{bottom:calc(34px + var(--safe-bottom))}}

/* Soft elevation separates white surfaces from the cool near-white canvas. */
:root{--shadow-card:0 3px 8px rgba(24,35,48,.025),0 14px 30px -10px rgba(24,35,48,.12)}
.card,.post,.id-card,.journey,.auth-card,.empty{box-shadow:var(--shadow-card)}
.card,.post,.popup-hero,.room-status{margin-bottom:22px}
.popup-hero{box-shadow:var(--shadow-card)}
.room-status{box-shadow:0 12px 28px -10px rgba(24,35,48,.25)}
.room-status.open{box-shadow:0 12px 28px -10px rgba(8,122,60,.27)}
.header-action{box-shadow:0 4px 12px rgba(24,35,48,.055)}
.nav-inner{box-shadow:0 8px 18px -7px rgba(24,35,48,.14),0 22px 44px -12px rgba(24,35,48,.23),inset 0 1px 1px rgba(255,255,255,.95)}
.section-head{margin-top:30px;margin-bottom:14px}