/* デジタルパンフ（めくれる学校案内）の画面 */
:root{--bg1:#3a3f48;--bg2:#17191e;--ui:rgba(24,27,33,.86);--uiink:#eef1f5;--uiink2:#aab2bf;--line:rgba(255,255,255,.12);--acc:#4a95d1}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:radial-gradient(120% 90% at 50% 40%,var(--bg1) 0%,var(--bg2) 100%) fixed #1c1f25;color:var(--uiink);font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;overflow:hidden;-webkit-tap-highlight-color:transparent;-webkit-font-smoothing:antialiased}
svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
[hidden]{display:none!important}

.dp-top{position:fixed;left:0;right:0;top:0;height:52px;padding:0 max(12px,env(safe-area-inset-right)) 0 max(12px,env(safe-area-inset-left));display:flex;align-items:center;gap:12px;background:var(--ui);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line);z-index:20}
.dp-home{display:flex;align-items:center;gap:2px;color:var(--uiink2);text-decoration:none;font-size:13px;padding:6px 8px 6px 2px;border-radius:8px}
.dp-home:hover{color:var(--uiink);background:rgba(255,255,255,.06)}
.dp-title{flex:1;min-width:0;font-size:14px;font-weight:600;letter-spacing:.04em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;text-align:center}
.dp-tools{display:flex;align-items:center;gap:4px}
.dp-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:40px;height:40px;padding:0 10px;border-radius:10px;color:var(--uiink);text-decoration:none;font-size:13px;transition:background .15s}
.dp-btn:hover{background:rgba(255,255,255,.09)}
.dp-btn:focus-visible,.dp-side:focus-visible,.dp-home:focus-visible{outline:2px solid var(--acc);outline-offset:2px}
.dp-btn:disabled{opacity:.35;cursor:default;background:none}
#dp-snd .off{display:none}
#dp-snd[aria-pressed="false"] .on{display:none}
#dp-snd[aria-pressed="false"] .off{display:inline}
#dp-snd[aria-pressed="false"]{color:var(--uiink2)}

#dp-stage{position:fixed;left:0;right:0;top:52px;bottom:64px;display:flex;align-items:center;justify-content:center}
#dp-book{position:relative;filter:drop-shadow(0 22px 40px rgba(0,0,0,.45));transition:transform .45s cubic-bezier(.3,.7,.3,1)}
#dp-book.dp-ready{animation:dpIn .5s ease both}
@keyframes dpIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.stf__wrapper{height:100%!important;padding-bottom:0!important}
.pg{background:#f8f5ef;overflow:hidden}
.pg .in{position:absolute;left:0;top:0;width:794px;height:1123px;transform-origin:0 0;transform:scale(var(--s,.5))}
.pg .in>img{position:absolute;inset:0;width:100%;height:100%;display:block;user-select:none;-webkit-user-select:none;-webkit-user-drag:none;pointer-events:none}
.pg .ov{position:absolute;display:block}
.pg .ov video{width:100%;height:100%;display:block}
.pg .ov iframe{width:100%;height:100%;border:0;display:block;background:transparent}
.pg a.ov{border-radius:6px;transition:box-shadow .2s}
.pg a.ov:hover{box-shadow:0 0 0 3px var(--acc)}
/* 背の陰影（見開きの真ん中） */
.pg.--left .in::after,.pg.--right .in::after{content:"";position:absolute;top:0;bottom:0;width:60px;pointer-events:none}
.pg.--left .in::after{right:0;background:linear-gradient(90deg,rgba(0,0,0,0),rgba(0,0,0,.10))}
.pg.--right .in::after{left:0;background:linear-gradient(270deg,rgba(0,0,0,0),rgba(0,0,0,.12))}

.dp-side{position:absolute;top:50%;width:44px;height:72px;margin-top:-36px;border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--uiink);background:rgba(20,22,27,.35);opacity:.75;transition:opacity .15s,background .15s;z-index:5}
.dp-side:hover{opacity:1;background:rgba(20,22,27,.6)}
.dp-side.prev{left:max(10px,env(safe-area-inset-left))}
.dp-side.next{right:max(10px,env(safe-area-inset-right))}
.dp-side:disabled{opacity:0;pointer-events:none}
.dp-side svg{width:26px;height:26px}

.dp-bar{position:fixed;left:50%;bottom:calc(10px + env(safe-area-inset-bottom));transform:translateX(-50%);height:46px;padding:0 6px;display:flex;align-items:center;gap:2px;background:var(--ui);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:14px;z-index:20;white-space:nowrap}
.dp-count{min-width:92px;text-align:center;font-size:13.5px;font-variant-numeric:tabular-nums;letter-spacing:.02em;color:var(--uiink)}
.dp-sep{width:1px;height:22px;background:var(--line);margin:0 4px}

.dp-panel{position:fixed;inset:0;z-index:40;background:rgba(14,16,20,.94);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;flex-direction:column}
.dp-panel-hd{height:56px;flex:none;display:flex;align-items:center;justify-content:space-between;padding:0 max(12px,env(safe-area-inset-right)) 0 max(16px,env(safe-area-inset-left));border-bottom:1px solid var(--line)}
.dp-panel-hd b{font-size:14px;font-weight:600;letter-spacing:.06em}
.dp-zt{display:flex;gap:4px}
.dp-tgrid{flex:1;overflow:auto;padding:20px 16px 40px;display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:22px 16px;align-content:start;max-width:1200px;width:100%;margin:0 auto}
.dp-t{display:flex;flex-direction:column;align-items:center;gap:7px;color:var(--uiink2);font-size:12px;cursor:pointer;background:none;border:0}
.dp-t img{width:100%;aspect-ratio:794/1123;object-fit:cover;display:block;border-radius:3px;box-shadow:0 6px 16px rgba(0,0,0,.35);outline:2px solid transparent;outline-offset:3px;transition:outline-color .15s,transform .15s;background:#2a2e36}
.dp-t:hover img{transform:translateY(-2px)}
.dp-t.on{color:var(--uiink)}
.dp-t.on img{outline-color:var(--acc)}
.dp-zscroll{flex:1;overflow:auto;-webkit-overflow-scrolling:touch;touch-action:pan-x pan-y pinch-zoom}
.dp-zin{display:flex;gap:2px;justify-content:center;margin:20px auto;width:max-content;padding:0 16px}
.dp-zin img{display:block;height:auto;box-shadow:0 10px 30px rgba(0,0,0,.4);background:#f8f5ef}

@media (max-width:640px){
 .dp-top{height:48px}
 #dp-stage{top:48px;bottom:62px}
 .dp-title{font-size:13px;text-align:left}
 .dp-home span,.dp-btn .lbl{display:none}
 .dp-side{display:none}
 .dp-count{min-width:76px}
 .dp-tgrid{grid-template-columns:repeat(3,1fr);gap:16px 10px;padding:16px 12px 40px}
}
@media (prefers-reduced-motion:reduce){#dp-book.dp-ready{animation:none}}