:root{
  --color-bg:#f6f4ef;
  --color-surface:#ffffff;
  --color-ink:#2e2a26;
  --color-ink-weak:#6d645e;
  --color-accent:#c18936;
  --color-accent-2:#385b45;
  --color-border:#e3dfd6;
  --focus:#1E88E5;
  --radius:16px;
  --shadow:0 15px 35px rgba(0,0,0,.08);
  --header-height:68px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--color-bg);color:var(--color-ink);font:16px/1.7 "Noto Sans JP",system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,"Apple Color Emoji","Segoe UI Emoji"}
img{max-width:100%;height:auto}

/* ヘッダー */
.site-header{background:#2f3d34;border-bottom:1px solid rgba(255,255,255,.08);color:#fff}
.site-header .inner{display:flex;align-items:center;gap:16px;max-width:1200px;margin:0 auto;padding:14px 24px;position:relative}
.brand img{height:40px}
.nav-toggle{display:none;align-items:center;justify-content:center;width:46px;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.25);background:rgba(255,255,255,.08);color:#fff;cursor:pointer;transition:background .2s ease;margin-left:auto}
.nav-toggle:focus{outline:3px solid var(--focus);outline-offset:3px}
.nav-toggle:hover{background:rgba(255,255,255,.15)}
.nav-toggle .nav-toggle__icon{width:22px;height:14px;display:inline-flex;flex-direction:column;justify-content:space-between}
.nav-toggle span{display:block;height:2px;width:100%;background:#fff;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.site-header.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.site-header.nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav{display:flex;gap:16px;flex:1;flex-wrap:wrap;justify-content:flex-end}
.nav.nav-actions{flex:0;justify-content:flex-start}
.nav a{padding:10px 8px;border-radius:8px;text-decoration:none;color:#fff;font-weight:500}
.nav .btn{color:var(--color-ink);background:#fff}
.nav .btn.btn-accent{color:#fff;background:var(--color-accent)}
.nav-account{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:12px;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;font-weight:700}
.nav-account__label{font-size:.75rem;letter-spacing:.18em;color:rgba(255,255,255,.8);text-transform:uppercase}
.nav-account__name{font-size:.95rem;color:#fff}
.nav [hidden]{display:none!important}
.nav a:focus{outline:3px solid var(--focus);outline-offset:2px}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn{display:inline-block;padding:12px 20px;border-radius:999px;text-decoration:none;border:1px solid var(--color-border);cursor:pointer;transition:.25s ease;background:#fff;color:var(--color-ink)}
.btn:hover{box-shadow:0 10px 20px rgba(0,0,0,.12);transform:translateY(-1px)}
.btn-accent{background:var(--color-accent);color:#fff;border-color:transparent;font-weight:700}
.btn-outline{background:transparent;color:var(--color-ink);border-color:var(--color-border)}
.btn-outline:hover{background:rgba(255,255,255,.6)}
.btn-accent:focus{outline:3px solid var(--focus);outline-offset:2px}

/* コンテナ */
.container{max-width:1200px;margin:0 auto;padding:32px 20px}
.section{margin:24px 0}
.h1{font-size:1.8rem;margin:0 0 12px}
.h2{font-size:1.4rem;margin:0 0 8px}
.lead{font-size:1.1rem;color:var(--color-ink-weak)}

/* カード・グリッド */
.grid{display:grid;gap:16px}
.grid.cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden;position:relative;display:flex;flex-direction:column;transition:transform .3s ease,box-shadow .3s ease}
.card:hover{transform:translateY(-4px);box-shadow:0 30px 45px rgba(0,0,0,.12)}
.work-card{padding:0;background:linear-gradient(180deg,rgba(255,255,255,1),rgba(248,245,237,.95));}
.work-card__link{color:inherit;text-decoration:none;display:flex;flex-direction:column;height:100%}
.work-card__media{position:relative;overflow:hidden}
.work-card__thumb{aspect-ratio:4/3;width:100%;object-fit:cover;display:block;transition:transform .4s ease;filter:saturate(1.05)}
.work-card:hover .work-card__thumb{transform:scale(1.05)}
.work-card__body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:16px}
.work-card__title{margin:0;color:var(--color-ink);font-size:1.15rem}
.work-card__author{display:flex;gap:12px;align-items:center}
.work-card__avatar{width:46px;height:46px;border-radius:50%;background:rgba(193,137,54,.18);display:inline-flex;align-items:center;justify-content:center;font-weight:700;color:var(--color-accent)}
.work-card__author-text{display:flex;flex-direction:column;font-size:.85rem;color:var(--color-ink-weak)}
.work-card__author-text strong{font-size:1rem;color:var(--color-ink)}
.location-summary{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:18px;background:rgba(193,137,54,.08);border:1px solid rgba(193,137,54,.25)}
.location-chip{display:flex;align-items:center;gap:10px}
.location-chip__icon{font-size:1.2rem}
.location-chip__body{display:flex;flex-direction:column}
.location-chip__label{font-size:.75rem;letter-spacing:.18em;color:var(--color-ink-weak);text-transform:uppercase}
.location-chip__value{font-size:1.05rem;color:var(--color-ink)}
.location-chip__meta{font-size:.9rem;color:var(--color-ink-weak)}
.work-card__meta{margin:0;display:flex;flex-direction:column;gap:8px}
.work-card__meta-item{display:flex;gap:12px;align-items:center;border-bottom:1px dashed var(--color-border);padding-bottom:6px}
.work-card__meta-item:last-child{border-bottom:none;padding-bottom:0}
.work-card__meta-item dt{margin:0;font-size:.8rem;letter-spacing:.15em;color:var(--color-ink-weak);min-width:72px;text-transform:uppercase}
.work-card__meta-item dd{margin:0;font-weight:600;color:var(--color-ink)}
.work-card__quickview{position:absolute;top:12px;right:12px;border:none;background:rgba(0,0,0,.68);color:#fff;border-radius:999px;padding:6px 16px;font-size:.85rem;cursor:pointer;transition:background .2s ease}
.work-card__quickview:hover{background:rgba(0,0,0,.82)}
.work-card__quickview:focus{outline:3px solid var(--focus)}

.section-status{margin:8px 0 4px;font-size:.9rem;color:var(--color-ink-weak)}
.empty-hint{margin-top:12px;padding:16px;border:1px dashed var(--color-border);border-radius:var(--radius);text-align:center;color:var(--color-ink-weak);background:#fff}

/* パンくず */
.breadcrumb{font-size:.9rem;margin-bottom:8px;color:var(--color-ink-weak)}
.breadcrumb a{color:inherit;text-decoration:none}

/* フィルタバー */
.filterbar{display:flex;gap:8px;flex-wrap:wrap;align-items:center;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow)}
.filterbar label{font-size:.95rem}
.select,.input{padding:10px 12px;border:1px solid var(--color-border);border-radius:10px;background:#fff}

/* モーダル（拡大表示） */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.75);display:none;align-items:center;justify-content:center;padding:24px}
.modal.open{display:flex}
.modal .frame{max-width:96vw;max-height:90vh;background:#000;border-radius:8px;overflow:auto}
.modal img{display:block;max-width:96vw;max-height:90vh;margin:auto}
.modal .close{position:absolute;top:12px;right:12px}

/* フッター */
.site-footer{border-top:1px solid var(--color-border);margin-top:24px;background:#fff}
.site-footer .inner{max-width:1200px;margin:0 auto;padding:28px 20px}
.footer-grid{display:flex;gap:16px;justify-content:space-between;flex-wrap:wrap}
.footer-nav{display:flex;gap:12px;flex-wrap:wrap}
.copy{color:var(--color-ink-weak)}

/* フォーム */
.form{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.form .row{display:grid;grid-template-columns:1fr 2fr;gap:12px;align-items:center;margin-bottom:12px}
.form label{font-weight:700}
.form input[type="text"],.form input[type="email"],.form input[type="date"],.form input[type="tel"],.form input[type="password"],.form textarea{padding:12px;border-radius:10px;border:1px solid var(--color-border);width:100%}
.form select{padding:12px;border-radius:10px;border:1px solid var(--color-border);width:100%;background:#fff;appearance:none;background-image:url('data:image/svg+xml,%3Csvg xmlns="http://www.w3.org/2000/svg" width="12" height="8" viewBox="0 0 12 8"%3E%3Cpath fill="%236d645e" d="M6 8 0 0h12z"/%3E%3C/svg%3E');background-repeat:no-repeat;background-position:right 12px center;background-size:12px auto}
.form textarea{min-height:120px}
.actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.actions--compact{gap:8px}
.form .actions{display:flex;gap:12px}
.form fieldset{border:1px solid var(--color-border);border-radius:14px;padding:12px 16px;margin:0 0 16px}
.form legend{font-weight:700;padding:0 6px}
.form .row.full{grid-template-columns:1fr}
.form .row.full label{margin-bottom:4px}
.field-note{font-size:.85rem;color:var(--color-ink-weak);margin:4px 0 0}
.field-note--emphasis{background:linear-gradient(90deg,rgba(255,136,0,.12),rgba(255,204,0,.05));border-left:4px solid var(--color-accent);padding:10px 12px;border-radius:8px;color:#b35a00;font-weight:700;margin-top:8px}
.checkbox{display:flex;align-items:center;gap:8px}
.checkbox input{width:auto}
.input-locked{background:#f4efe3;color:var(--color-ink-weak)}
.input-locked:focus{outline:3px solid var(--color-border)}
.file-input-hidden{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.upload-box{display:flex;flex-direction:column;gap:10px}
.dropzone{border:2px dashed rgba(193,137,54,.6);border-radius:14px;padding:16px;background:rgba(193,137,54,.05);display:flex;flex-direction:column;gap:8px;align-items:flex-start;transition:border-color .2s ease,background .2s ease;cursor:pointer}
.dropzone strong{display:block}
.dropzone:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.dropzone.is-dragover{border-color:var(--color-accent);background:rgba(193,137,54,.12)}
.dropzone .dropzone__actions{display:flex;gap:8px;flex-wrap:wrap}
.photo-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:8px}
.photo-list__item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:10px 12px;border:1px solid var(--color-border);border-radius:12px;background:#fff}
.photo-list__meta{display:flex;flex-direction:column;gap:4px;font-size:.95rem}
.photo-list__name{font-weight:700;word-break:break-all}
.photo-list__size{color:var(--color-ink-weak);font-size:.85rem}
.photo-remove{background:transparent;border:1px solid var(--color-border);border-radius:10px;padding:6px 10px;color:var(--color-ink);cursor:pointer;font:inherit}
.photo-remove:hover{background:#f6f4ef}
.notice-card{border-radius:var(--radius);padding:16px;border:1px solid var(--color-border);background:rgba(193,137,54,.08);margin:16px 0}
.notice-card p{margin:0 0 4px}
.alert{border-radius:var(--radius);padding:12px;border:1px solid #f3c0c0;background:#fff7f7;color:#7a0e0e;margin:16px 0}
.alert.success{border-color:#9ad5b0;background:#e8f8f0;color:#1b8156}
.alert.info{border-color:#8bb6f5;background:#e9f1ff;color:#1d4ed8}
.alert ul{padding-left:20px;margin:8px 0}
.map-canvas{width:100%;height:280px;border:1px solid var(--color-border);border-radius:12px;margin:8px 0;background:#f6f4ef}
.map-reset{display:inline-flex;align-items:center;gap:8px;padding:10px 14px;border-radius:12px;border:1px solid #1E88E5;background:linear-gradient(90deg,rgba(30,136,229,.12),rgba(30,136,229,.05));color:#1E88E5;font-weight:700;box-shadow:0 10px 24px rgba(30,136,229,.18)}
.map-reset:hover{box-shadow:0 14px 26px rgba(30,136,229,.22);transform:translateY(-1px)}
.map-reset:focus{outline:3px solid var(--focus);outline-offset:2px}
.map-reset__icon{display:inline-flex;width:18px;height:18px;border-radius:50%;align-items:center;justify-content:center;background:#1E88E5;color:#fff;font-size:.85rem}
.coords{display:flex;gap:16px;font-size:.9rem;color:var(--color-ink-weak)}
.coords span{display:flex;gap:4px;align-items:center}
.suggestions{margin-top:6px;border:1px solid var(--color-border);border-radius:10px;background:#fff;box-shadow:0 8px 18px rgba(0,0,0,.08);padding:4px 0;max-height:220px;overflow-y:auto;display:flex;flex-direction:column}
.suggestions[hidden]{display:none}
.suggestion-item{border:none;background:transparent;text-align:left;padding:10px 14px;width:100%;cursor:pointer;font:inherit;color:inherit}
.suggestion-item:hover,.suggestion-item:focus{background:rgba(193,137,54,.12);outline:none}
.suggestion-message{padding:8px 14px;font-size:.9rem;color:var(--color-ink-weak)}
.notice-card .actions{margin-top:8px;display:flex;gap:8px;flex-wrap:wrap}
@media (max-width:800px){.form .row{grid-template-columns:1fr}}

/* アクセシビリティ */
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{position:static;width:auto;height:auto;display:inline-block;padding:8px;background:#000;color:#fff}

/* heroセクション用 */
.hero-stage{position:relative;height:calc(100vh - var(--header-height));background:#000;overflow:hidden}
.hero-stage img{width:100%;height:100%;object-fit:cover;display:block}
.main-content{padding:48px 20px 32px}
.contest-info{padding:36px;background:var(--color-surface);border-radius:30px;border:1px solid var(--color-border);box-shadow:var(--shadow);position:relative;}
.eyebrow{font-size:.85rem;letter-spacing:.35em;color:var(--color-accent-2);margin:0 0 12px;text-transform:uppercase}
.info-head{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;flex-wrap:wrap}
.hero-title{font-size:2.6rem;margin:0;color:var(--color-ink)}
.hero-description{font-size:1.1rem;margin:12px 0 0;color:var(--color-ink-weak)}
.status-pill{padding:8px 18px;border-radius:999px;background:var(--color-accent-2);color:#fff;font-weight:700;letter-spacing:.2em;text-transform:uppercase}
.info-meta{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-top:32px}
.meta-item{padding:16px 18px;border-radius:18px;background:rgba(56,91,69,.08);border:1px solid rgba(56,91,69,.18)}
.meta-item span{display:block;font-size:.85rem;color:var(--color-ink-weak)}
.meta-item strong{display:block;margin-top:6px;font-size:1.2rem;color:var(--color-ink)}

.cta-stack{margin:48px 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.cta-card{padding:24px;border-radius:28px;border:1px solid var(--color-border);box-shadow:var(--shadow);background:var(--color-surface);display:flex;flex-direction:column;gap:12px}
.cta-card .label{letter-spacing:.25em;font-size:.8rem;color:var(--color-accent-2);margin:0}
.cta-card h2{margin:0;font-size:1.6rem}
.cta-card p{margin:0 0 8px;color:var(--color-ink-weak)}
.cta-card.entry{background:linear-gradient(135deg,rgba(193,137,54,.12),rgba(247,239,223,.9))}
.cta-card.guide{background:linear-gradient(135deg,rgba(56,91,69,.12),rgba(255,255,255,.95))}
.cta-card.share{background:linear-gradient(135deg,rgba(37,42,51,.85),rgba(74,90,75,.9));color:#fff}
.cta-card.share p{color:rgba(255,255,255,.8)}
.cta-card.share .btn{background:#fff;border-color:#fff;color:var(--color-ink)}
.share-buttons{display:flex;flex-wrap:wrap;gap:8px}
.share-buttons .btn{padding:10px 16px;border-radius:999px;font-size:.9rem}

.section-label{font-size:.85rem;letter-spacing:.3em;color:var(--color-accent-2);margin:0;text-transform:uppercase}
.gallery-stream .section-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;flex-wrap:wrap}
.section-desc{margin:4px 0 0;color:var(--color-ink-weak)}
.works-stream .card{min-height:100%}

.photo-detail{background:var(--color-surface);border-radius:28px;padding:24px;border:1px solid var(--color-border);box-shadow:var(--shadow)}
.photo-detail__grid{display:grid;gap:24px}
.photo-detail__image{width:100%;border-radius:24px;border:1px solid var(--color-border);object-fit:cover}
.photo-detail__meta{display:flex;flex-direction:column;gap:16px}
.photo-detail__meta .work-card__meta{border-top:1px solid var(--color-border);padding-top:12px}
.photo-detail__actions{display:flex;gap:12px;flex-wrap:wrap;align-items:flex-start}
.vote-panel{display:flex;align-items:center;gap:12px;padding:12px 18px;border-radius:18px;background:rgba(193,137,54,.08);border:1px solid rgba(193,137,54,.18)}
.vote-panel[hidden]{display:none}
.vote-panel__status{font-weight:600;color:var(--color-ink)}
.map-board{border:1px solid var(--color-border);border-radius:24px;overflow:hidden;box-shadow:var(--shadow);background:#fff}
.map-board .map-canvas{height:520px;border:none;border-radius:0}
.map-board__header{padding:18px 20px;border-bottom:1px solid var(--color-border);background:rgba(193,137,54,.08)}
.map-board__body{padding:18px}
.map-cluster{background:transparent;border:none}
.map-cluster-icon{display:flex;flex-direction:column;align-items:center;justify-content:center;border-radius:50%;color:#fff;font-weight:700;box-shadow:0 10px 20px rgba(0,0,0,.25);border:3px solid #fff;padding:6px 10px}
.map-cluster-icon__count{font-size:1.2rem;line-height:1}
.map-cluster-icon__label{font-size:.7rem;letter-spacing:.08em}
.map-cluster-icon--small{background:#c18936}
.map-cluster-icon--medium{background:#8a5c1f}
.map-cluster-icon--large{background:#3c2a12}

@media (max-width:900px){
  .contest-info{margin-top:0}
}

@media (max-width:640px){
  .site-header .inner{flex-direction:row;align-items:center;flex-wrap:wrap}
  .nav-toggle{display:inline-flex}
  .nav-toggle{order:2}
  .nav{order:3;flex-direction:column;align-items:flex-start;width:100%;flex-basis:100%;background:#2f3d34;border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:8px;margin-top:10px;display:none}
  .nav a{width:100%}
  .site-header.nav-open .nav{display:flex}
  .nav .btn{width:100%;text-align:center}
  .hero-title{font-size:2rem}
  .work-card__meta-item{flex-direction:column;align-items:flex-start}
  .work-card__meta-item dt{text-transform:none;letter-spacing:.05em}
}

@media (min-width:900px){
  .photo-detail__grid{grid-template-columns:1.05fr .95fr}
}
#commentList{list-style:disc;padding-left:1.25rem}
#commentList li{margin:6px 0}