:root{--bg:#f5f7fb;--panel:#fff;--text:#17191c;--muted:#68707a;--line:#dfe3e8;--primary:#173f9f;--secondary:#2fa62c;--danger:#b42318;--success:#067647;--radius:16px;--shadow:0 8px 30px rgba(23,63,159,.08)}
*{box-sizing:border-box}html{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;color:var(--text);background:var(--bg)}body{margin:0}a{color:inherit}button,input,textarea{font:inherit}.wrap{width:min(1180px,calc(100% - 28px));margin:auto}.site-header,.admin-header{position:sticky;top:0;z-index:20}.site-header{background:rgba(255,255,255,.96);color:var(--text);border-bottom:1px solid rgba(223,227,232,.9);backdrop-filter:blur(12px)}.admin-header{background:#111;color:#fff}.site-header .wrap,.admin-header .wrap{min-height:58px;display:flex;align-items:center;justify-content:space-between}.public-header-inner{justify-content:center!important;min-height:76px!important}.public-brand{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:9px 0}.public-brand img{display:block;width:min(320px,82vw);height:auto;max-height:68px;object-fit:contain}.brand{font-weight:800;letter-spacing:.02em}.admin-header nav{display:flex;gap:18px}.admin-header a{text-decoration:none;font-size:14px}.public-main,.admin-main{padding:28px 0 70px}.hero,.album-head{margin-bottom:24px}.hero h1,.album-head h1{margin:.2em 0;font-size:clamp(28px,6vw,46px)}.muted{color:var(--muted)}.album-list{display:grid;gap:12px}.album-card{background:var(--panel);border:1px solid var(--line);padding:18px;border-radius:var(--radius);display:flex;justify-content:space-between;align-items:center;text-decoration:none;box-shadow:var(--shadow)}.album-card div{display:grid;gap:4px}.album-card small{color:var(--muted)}.back-link{font-size:14px;color:var(--muted);text-decoration:none}.selection-bar{position:sticky;top:66px;z-index:15;background:rgba(255,255,255,.96);backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:14px;padding:10px 12px;display:flex;gap:14px;align-items:center;justify-content:space-between;margin-bottom:16px;box-shadow:var(--shadow)}.select-all{white-space:nowrap}.photo-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.photo-card{background:#fff;border:2px solid transparent;border-radius:14px;overflow:hidden;position:relative;box-shadow:var(--shadow)}.photo-card.selected{border-color:var(--primary);box-shadow:0 8px 30px rgba(23,63,159,.18)}.photo-card>img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#e9ecef}.check-wrap{position:absolute;top:8px;left:8px;background:rgba(255,255,255,.92);border-radius:999px;padding:7px 10px;font-size:13px;display:flex;align-items:center;gap:5px}.photo-actions{padding:10px;display:grid;gap:8px}.filename{font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--muted)}.button{appearance:none;border:1px solid #cbd0d6;background:#fff;color:#111;border-radius:10px;padding:10px 14px;text-decoration:none;text-align:center;cursor:pointer;font-weight:700}.button:hover{filter:brightness(.97)}.button:disabled{opacity:.45;cursor:not-allowed}.button.primary{background:linear-gradient(135deg,var(--secondary),#268d24);color:#fff;border-color:var(--secondary);box-shadow:0 7px 18px rgba(47,166,44,.2)}.button.small{font-size:13px;padding:8px}.site-footer{padding:26px 0 34px;color:#8a929d;font-size:12px;text-align:center;background:#fff;border-top:1px solid var(--line)}.site-footer small{font-size:11px;letter-spacing:.04em}.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:36px;text-align:center}.public-entry{max-width:720px;margin:24px auto 0;padding:44px 24px}.public-entry h1{margin:0 0 12px;font-size:clamp(26px,7vw,40px)}.public-entry p{margin:0 auto;max-width:560px;line-height:1.85;color:var(--muted)}.admin-body{background:#eef1f4}.admin-main{display:grid;gap:20px}.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.panel.narrow{width:min(480px,calc(100% - 28px));margin:8vh auto}.panel h1,.panel h2{margin-top:0}.stack{display:grid;gap:16px}.stack label,.form-grid label{display:grid;gap:7px;font-weight:700;font-size:14px}input,textarea{width:100%;border:1px solid #cbd0d6;border-radius:10px;padding:11px 12px;background:#fff}textarea{resize:vertical}.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;align-items:end}.form-grid.wide{grid-template-columns:repeat(3,minmax(0,1fr))}.form-grid .full{grid-column:1/-1}.form-action{display:flex;align-items:end}.toggle{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center!important}.toggle input{width:auto}.alert{padding:12px 14px;border-radius:10px;margin:12px 0}.alert.error{background:#fef3f2;color:var(--danger)}.alert.success{background:#ecfdf3;color:var(--success)}.admin-album-list{display:grid;gap:10px}.admin-album-row{border:1px solid var(--line);border-radius:12px;padding:14px;display:flex;justify-content:space-between;align-items:center;text-decoration:none}.admin-album-row div:first-child{display:grid;gap:4px}.admin-album-row small{color:var(--muted)}.stats{display:flex;gap:14px;font-size:13px;color:var(--muted)}.section-title{display:flex;align-items:flex-start;justify-content:space-between;gap:16px}.button-group{display:flex;gap:8px;flex-wrap:wrap}.upload-box{position:relative;border:2px dashed #b7bec7;border-radius:14px;padding:34px 20px;text-align:center;display:grid;gap:5px;background:#f8fafc;transition:.2s}.upload-box.dragging{border-color:var(--primary);background:#eef3ff}.upload-box input{position:absolute;inset:0;opacity:0;cursor:pointer}.upload-box small,.upload-box span{color:var(--muted)}.upload-summary{margin:14px 0;padding:12px;background:#ecfdf3;color:var(--success);border-radius:10px}.upload-queue{display:grid;gap:8px;margin:14px 0}.upload-row{display:grid;grid-template-columns:minmax(0,1fr) 74px minmax(100px,220px) 70px;gap:10px;align-items:center;border-bottom:1px solid var(--line);padding:8px 0}.upload-row span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.upload-row small{color:var(--muted)}.upload-row em{font-style:normal;font-size:13px}.upload-row.done em{color:var(--success)}.upload-row.failed em{color:var(--danger)}progress{width:100%}.admin-photo-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.admin-photo-card{display:grid;grid-template-columns:92px minmax(0,1fr);gap:10px;border:1px solid var(--line);border-radius:12px;padding:8px}.admin-photo-card img{width:92px;height:92px;object-fit:cover;border-radius:8px;background:#eee}.admin-photo-card>div{min-width:0;display:grid;align-content:start;gap:5px}.admin-photo-card strong,.admin-photo-card small{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.admin-photo-card small{color:var(--muted)}.link-danger{border:0;background:none;padding:0;color:var(--danger);cursor:pointer;text-align:left;font-size:13px}
@media(min-width:760px){.photo-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.public-brand img{width:360px;max-height:76px}.public-header-inner{min-height:96px!important}}
@media(max-width:720px){.selection-bar{flex-wrap:wrap}.selection-bar .button{width:100%}.form-grid,.form-grid.wide{grid-template-columns:1fr}.form-grid .full{grid-column:auto}.admin-album-row{align-items:flex-start;gap:10px}.stats{display:grid;gap:3px;text-align:right}.section-title{display:grid}.admin-photo-grid{grid-template-columns:1fr}.upload-row{grid-template-columns:minmax(0,1fr) 62px}.upload-row progress{grid-column:1/-1}.upload-row em{text-align:right}.panel{padding:16px}}

/* v1.4: トップページに公開アルバムをサムネイル一覧表示 */
.home-intro{margin:0 0 20px}.home-intro h1{margin:0 0 7px;font-size:clamp(26px,7vw,42px)}.home-intro p{margin:0;color:var(--muted);line-height:1.7}.album-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.album-tile{min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;text-decoration:none;box-shadow:var(--shadow);transition:transform .16s ease,box-shadow .16s ease}.album-tile:active{transform:scale(.985)}.album-cover{aspect-ratio:4/3;background:#e9edf4;overflow:hidden}.album-cover img{display:block;width:100%;height:100%;object-fit:cover}.album-placeholder{width:100%;height:100%;display:grid;place-items:center;background:linear-gradient(135deg,rgba(23,63,159,.11),rgba(47,166,44,.13));color:var(--muted);font-size:13px;font-weight:700}.album-tile-body{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;padding:12px}.album-tile-title{min-width:0;display:grid;gap:4px}.album-tile-title strong{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.42;font-size:15px}.album-tile-title small{color:var(--muted);font-size:11px}.album-count{flex:none;color:var(--primary);background:#eef3ff;border-radius:999px;padding:4px 7px;font-size:11px;font-weight:800;white-space:nowrap}
@media(min-width:760px){.album-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.album-tile-body{padding:15px}.album-tile-title strong{font-size:17px}.album-tile:hover{transform:translateY(-2px);box-shadow:0 14px 36px rgba(23,63,159,.14)}}
@media(min-width:1080px){.album-grid{grid-template-columns:repeat(4,minmax(0,1fr))}}

/* v1.5: スマートフォン向けメニュー・一覧/個別表示切替 */
[hidden]{display:none!important}
body.menu-open{overflow:hidden}
.public-header-inner{position:relative;justify-content:center!important;padding-right:56px;padding-left:56px}
.menu-toggle{position:absolute;right:0;top:50%;transform:translateY(-50%);width:46px;height:46px;border:0;border-radius:12px;background:transparent;display:grid;align-content:center;justify-items:center;gap:5px;cursor:pointer;color:var(--text)}
.menu-toggle span{display:block;width:25px;height:2px;border-radius:999px;background:currentColor;transition:transform .2s ease,opacity .2s ease}
.menu-toggle:hover,.menu-toggle:focus-visible{background:#eef3ff}
.menu-backdrop{position:fixed;inset:0;z-index:39;background:rgba(10,18,35,.42);backdrop-filter:blur(2px)}
.site-menu{position:fixed;z-index:40;top:0;right:0;bottom:0;width:min(370px,88vw);background:#fff;box-shadow:-18px 0 48px rgba(12,30,70,.22);transform:translateX(105%);transition:transform .24s ease;display:flex;flex-direction:column;padding:max(14px,env(safe-area-inset-top)) 16px max(18px,env(safe-area-inset-bottom))}
.site-menu.open{transform:translateX(0)}
.site-menu-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:2px 2px 14px;font-size:19px}
.menu-close{appearance:none;border:0;background:#f1f3f6;color:#252a31;border-radius:999px;width:40px;height:40px;display:grid;place-items:center;font-size:26px;line-height:1;cursor:pointer}
.site-menu-nav{display:grid;gap:6px;padding:15px 0;overflow:auto}
.site-menu-nav a,.site-menu-nav button{appearance:none;width:100%;border:0;background:transparent;color:var(--text);text-align:left;text-decoration:none;border-radius:13px;padding:12px 10px;display:grid;grid-template-columns:38px minmax(0,1fr);align-items:center;gap:10px;cursor:pointer}
.site-menu-nav a:hover,.site-menu-nav button:hover,.site-menu-nav a:focus-visible,.site-menu-nav button:focus-visible{background:#f2f6ff}
.site-menu-nav a[aria-current="page"],.site-menu-nav button[aria-pressed="true"]{background:#eef3ff;color:var(--primary)}
.site-menu-nav span:last-child{display:grid;gap:3px}
.site-menu-nav strong{font-size:15px}
.site-menu-nav small{color:var(--muted);font-size:12px;line-height:1.4}
.menu-icon{width:34px;height:34px;display:grid!important;place-items:center;border-radius:10px;background:#eef3ff;color:var(--primary);font-size:18px;font-weight:800}
.site-menu-foot{margin-top:auto;border-top:1px solid var(--line);padding:15px 5px 0;color:var(--muted);font-size:12px;text-align:center}
.album-heading-row{display:flex;align-items:flex-end;justify-content:space-between;gap:18px}
.album-heading-row h1{margin-bottom:0}
.album-heading-row .muted{margin:7px 0 0}
.album-description{line-height:1.8}
.view-switch{display:inline-flex;flex:none;border:1px solid var(--line);border-radius:12px;padding:3px;background:#fff}
.view-switch-button{appearance:none;border:0;background:transparent;color:var(--muted);border-radius:9px;padding:8px 12px;font-size:13px;font-weight:700;cursor:pointer}
.view-switch-button.active,.view-switch-button[aria-pressed="true"]{background:var(--primary);color:#fff}
.selection-count{white-space:nowrap}
.photo-open{appearance:none;border:0;background:#e9ecef;padding:0;width:100%;display:block;position:relative;cursor:zoom-in;color:inherit}
.photo-open>img{width:100%;aspect-ratio:1/1;object-fit:cover;display:block;background:#e9ecef}
.photo-open-hint{position:absolute;right:8px;bottom:8px;padding:5px 8px;border-radius:999px;background:rgba(17,25,40,.72);color:#fff;font-size:11px;font-weight:700;opacity:0;transform:translateY(3px);transition:.18s}
.photo-open:hover .photo-open-hint,.photo-open:focus-visible .photo-open-hint{opacity:1;transform:translateY(0)}
.button.compact{padding:8px 11px;font-size:13px}
.individual-view{display:grid;gap:14px}
.individual-topbar{display:flex;align-items:center;justify-content:space-between;gap:12px}
.single-position{font-size:13px;color:var(--muted);font-weight:700}
.single-stage{position:relative;min-height:280px;background:#11151c;border-radius:18px;overflow:hidden;display:grid;place-items:center;touch-action:pan-y;box-shadow:var(--shadow)}
.single-stage img{display:block;max-width:100%;width:auto;max-height:min(72vh,860px);object-fit:contain;background:#11151c}
.single-nav{position:absolute;z-index:2;top:50%;transform:translateY(-50%);appearance:none;border:0;width:48px;height:64px;border-radius:12px;background:rgba(255,255,255,.88);color:#15203a;font-size:38px;line-height:1;display:grid;place-items:center;cursor:pointer;box-shadow:0 5px 20px rgba(0,0,0,.18)}
.single-nav:disabled{opacity:.25;cursor:default}
.single-prev{left:12px}.single-next{right:12px}
.single-details{background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:var(--shadow)}
.single-name{min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;color:var(--muted)}
.single-actions{display:flex;align-items:center;gap:10px;flex:none}
.single-select{display:flex;align-items:center;gap:7px;white-space:nowrap;font-weight:700;font-size:14px}
.single-select input{width:auto}
.single-mobile-nav{display:none;grid-template-columns:1fr 1fr;gap:10px}
.help-dialog{width:min(560px,calc(100% - 28px));max-height:calc(100vh - 40px);border:0;border-radius:18px;padding:0;color:var(--text);box-shadow:0 24px 70px rgba(8,24,54,.28)}
.help-dialog::backdrop{background:rgba(10,18,35,.48);backdrop-filter:blur(3px)}
.help-dialog-inner{padding:20px;overflow:auto}
.help-dialog-head{display:flex;align-items:center;justify-content:space-between;gap:14px;border-bottom:1px solid var(--line);padding-bottom:13px}
.help-dialog-head h2{margin:0;font-size:22px}
.help-steps{margin:18px 0;padding:0;list-style:none;display:grid;gap:12px;counter-reset:help}
.help-steps li{counter-increment:help;display:grid;grid-template-columns:34px minmax(0,1fr);column-gap:10px;row-gap:2px;align-items:start}
.help-steps li::before{content:counter(help);grid-row:1/3;width:30px;height:30px;display:grid;place-items:center;border-radius:999px;background:#eef3ff;color:var(--primary);font-weight:800}
.help-steps strong{font-size:15px}.help-steps span{font-size:13px;color:var(--muted);line-height:1.55}
.help-note{background:#f5f7fb;border-radius:12px;padding:12px;font-size:12px;color:var(--muted);line-height:1.65}
.help-close-button{width:100%;margin-top:6px}
@media(max-width:720px){
  .public-header-inner{padding-right:48px;padding-left:8px;justify-content:flex-start!important}
  .public-brand{justify-content:flex-start}
  .public-brand img{width:min(275px,74vw);max-height:60px}
  .menu-toggle{right:0;width:44px;height:44px}
  .album-heading-row{display:grid;align-items:start}
  .view-switch{width:100%}
  .view-switch-button{flex:1}
  .selection-bar{top:76px}
  .single-stage{min-height:245px;border-radius:14px}
  .single-nav{display:none}
  .single-details{display:grid;gap:12px}
  .single-actions{display:grid;grid-template-columns:1fr;gap:9px}
  .single-actions .button{width:100%}
  .single-mobile-nav{display:grid}
  .photo-open-hint{display:none}
}
@media(min-width:721px){
  .menu-toggle{right:5px}
}
@media(min-width:721px){.selection-bar{top:106px}}

/* v1.7 管理画面：年別アルバム・ダウンロード集計 */
.admin-header nav a[aria-current="page"]{text-decoration:underline;text-underline-offset:5px;font-weight:800}
select{width:100%;border:1px solid #cbd0d6;border-radius:10px;padding:11px 12px;background:#fff;font:inherit}
.field-help{color:var(--muted);font-weight:400}
.year-create-form{grid-template-columns:minmax(180px,280px) auto;justify-content:start}
.metric-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px;margin-top:16px}
.metric-box{border:1px solid var(--line);border-radius:12px;padding:14px;background:#f8fafc;display:grid;gap:7px}
.metric-box small{color:var(--muted)}
.metric-box strong{font-size:24px}
.stats-filter{display:grid;grid-template-columns:1.4fr 1fr 1fr auto;gap:12px;align-items:end}
.stats-filter label{display:grid;gap:7px;font-weight:700;font-size:14px}
.stats-filter .form-action{display:flex;gap:8px;flex-wrap:wrap}
.stats-note{margin-top:16px;padding:14px;border-radius:12px;background:#f4f7fb;border:1px solid var(--line)}
.stats-note p{margin:6px 0 0;color:var(--muted);line-height:1.7}
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.stats-table{width:100%;border-collapse:collapse;white-space:nowrap}
.stats-table th,.stats-table td{padding:11px 10px;border-bottom:1px solid var(--line);text-align:right;font-size:13px}
.stats-table th{color:var(--muted);font-weight:700;background:#f8fafc}
.stats-table th:first-child,.stats-table td:first-child,.stats-table th:nth-child(2),.stats-table td:nth-child(2){text-align:left}
.table-actions{display:flex;gap:8px;justify-content:flex-end}.table-actions a{color:var(--primary);font-weight:700}
@media(max-width:900px){
 .admin-header .wrap{align-items:flex-start;padding:12px 0;gap:10px;flex-direction:column}
 .admin-header nav{width:100%;gap:12px;overflow-x:auto;padding-bottom:3px;white-space:nowrap}
 .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats-filter{grid-template-columns:repeat(2,minmax(0,1fr))}
 .stats-filter .form-action{grid-column:1/-1}
}
@media(max-width:560px){
 .year-create-form,.stats-filter{grid-template-columns:1fr}
 .stats-filter .form-action{grid-column:auto}.stats-filter .button{flex:1}
 .metric-grid{grid-template-columns:1fr 1fr}.metric-box strong{font-size:21px}
 .admin-album-row{display:grid}.admin-album-row .stats{text-align:left;grid-template-columns:repeat(2,auto);display:grid}
}

/* v1.8 管理画面：写真の一括公開・非公開・削除、アルバム削除 */
.button.danger{background:#b42318;color:#fff;border-color:#b42318;box-shadow:none}
.button.danger:hover{background:#981b12}
.admin-bulk-toolbar{position:sticky;top:72px;z-index:10;margin:14px 0;padding:12px;border:1px solid var(--line);border-radius:13px;background:rgba(255,255,255,.97);display:flex;align-items:center;gap:14px;justify-content:space-between;box-shadow:var(--shadow);backdrop-filter:blur(10px)}
.admin-select-all{display:flex;align-items:center;gap:7px;white-space:nowrap;font-weight:700}
.admin-select-all input,.admin-photo-selector input{width:auto}
.admin-bulk-actions{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.admin-photo-card{position:relative;transition:border-color .18s ease,background .18s ease,opacity .18s ease}
.admin-photo-card.selected{border-color:var(--primary);background:#f5f8ff}
.admin-photo-card.is-unpublished{background:#f4f5f6;opacity:.78}
.admin-photo-card.is-unpublished img{filter:grayscale(.35)}
.admin-photo-selector{position:absolute;z-index:2;top:12px;left:12px;display:flex;align-items:center;gap:5px;padding:6px 8px;border-radius:999px;background:rgba(255,255,255,.94);box-shadow:0 2px 8px rgba(0,0,0,.14);font-size:12px;font-weight:700;cursor:pointer}
.admin-photo-status-row{display:flex;align-items:center;gap:7px;min-width:0}
.admin-photo-status-row strong{min-width:0}
.status-badge{flex:none;display:inline-flex;align-items:center;border-radius:999px;padding:3px 7px;font-size:11px;font-weight:800}
.status-badge.published{background:#ecfdf3;color:#067647}
.status-badge.unpublished{background:#f2f4f7;color:#667085}
.danger-zone{border-color:#f0b7b2;background:#fffafa}
.danger-zone h2{color:var(--danger)}
.danger-zone p{line-height:1.7}
.delete-album-form{margin-top:16px;padding-top:16px;border-top:1px solid #f0c8c4;display:grid;gap:14px;justify-items:start}
.delete-album-form .toggle{font-weight:700}
@media(max-width:900px){
 .admin-bulk-toolbar{top:112px;display:grid;grid-template-columns:1fr auto}
 .admin-bulk-actions{grid-column:1/-1;justify-content:stretch}
 .admin-bulk-actions .button{flex:1}
}
@media(max-width:560px){
 .admin-bulk-toolbar{top:124px;grid-template-columns:1fr}
 .admin-bulk-toolbar>strong{position:absolute;right:12px;top:15px}
 .admin-bulk-actions{display:grid;grid-template-columns:1fr 1fr}
 .admin-bulk-actions .button.danger{grid-column:1/-1}
 .delete-album-form .button{width:100%}
}