:root{
  --navy-900:#12143c; --navy-800:#1a1d4d;
  --violet-500:#7c5cfc; --violet-300:#a996ff;
  --gold-400:#ffd166; --gold-300:#ffe19c;
  --panel-bg:#f4f6fb; --panel-bg2:#ffffff;
  --ink-900:#1b1e2b; --ink-600:#565b72;
  --teal-500:#17a398; --teal-600:#0e837a;
  --radius-lg:20px;
  /* Windows11風トークン */
  --win-bg:#0d1117;
  --win-taskbar:rgba(32,32,32,.78);
  --win-window:rgba(246,246,248,.92);
  --win-window-header:rgba(255,255,255,.65);
  --win-border:rgba(0,0,0,.08);
  --win-blue:#3a7bd5;
  --win-folder:#ffc766;
  --win-folder-dark:#f0a93a;
  --win-accent1:#5ea0ef; --win-accent2:#3a7bd5; --win-accent3:#2f5fa8; --win-accent4:#87bdf5;
}
*{box-sizing:border-box;}
html,body{margin:0;padding:0;height:100%;}
body{font-family:'Noto Sans JP',sans-serif;background:#0c0d24;color:var(--ink-900);height:100vh;overflow:hidden;}
.app{width:100vw;height:100vh;background:var(--navy-900);overflow:hidden;box-shadow:none;display:flex;flex-direction:column;position:relative;}

/* ナビ */
.top-nav{display:flex;align-items:center;justify-content:space-between;padding:10px 18px;background:linear-gradient(90deg,var(--navy-900),var(--navy-800));border-bottom:1px solid rgba(255,255,255,.08);gap:14px;flex-wrap:wrap;}
.nav-left{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.hamburger-btn{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;width:34px;height:34px;border-radius:9px;cursor:pointer;font-size:14px;display:flex;align-items:center;justify-content:center;}
.course-tag{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;color:#fff;font-size:15px;display:flex;align-items:center;gap:6px;}
.course-tag i{color:var(--gold-400);}
.lesson-badge{background:rgba(124,92,252,.2);border:1px solid rgba(124,92,252,.4);color:var(--violet-300);font-size:13px;font-weight:700;padding:5px 12px;border-radius:999px;}
.lesson-title{color:rgba(255,255,255,.75);font-size:14.5px;}
.nav-right{display:flex;align-items:center;gap:10px;}
.timer-pill{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:999px;padding:8px 14px;color:#fff;font-size:14.5px;}
.timer-pill button{background:none;border:none;color:var(--gold-400);cursor:pointer;font-size:13px;}
.nav-home{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);color:#fff;font-size:14px;padding:9px 15px;border-radius:9px;cursor:pointer;display:flex;align-items:center;gap:6px;}

/* インストラクターバー */
.inst-bar{display:flex;align-items:center;gap:10px;padding:7px 18px;background:rgba(0,0,0,.2);border-bottom:1px solid rgba(255,255,255,.06);flex-wrap:wrap;}
.inst-stars{display:flex;gap:5px;flex-wrap:wrap;}
.inst-star{width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.08);color:rgba(255,255,255,.3);font-size:12.5px;cursor:pointer;border:1px solid rgba(255,255,255,.1);transition:all .25s ease;}
.inst-star.done{background:var(--gold-400);color:var(--navy-900);border-color:var(--gold-400);}
.inst-star.current{outline:2px solid var(--teal-500);outline-offset:2px;}
.inst-star.locked{cursor:not-allowed;}
.inst-divider{width:1px;height:16px;background:rgba(255,255,255,.15);}
.inst-xp{color:var(--gold-400);font-size:14.5px;font-weight:700;display:flex;align-items:center;gap:5px;}
.inst-sec-name{color:rgba(255,255,255,.8);font-size:14.5px;font-weight:500;}

.main{display:grid;grid-template-columns:1.6fr 1fr;flex:1;min-height:0;overflow:hidden;}
@media (max-width:900px){ .main{grid-template-columns:1fr; overflow-y:auto; overflow-x:hidden;} }

/* ===== 左：Windows11風ステージ ===== */
.stage{position:relative;background:linear-gradient(160deg,#0f2027 0%,#1c2b45 45%,#2b3a67 100%);overflow:hidden;display:flex;flex-direction:column;transition:background .4s ease, box-shadow .4s ease;}
.stage.os-mode{background:linear-gradient(150deg,#dbe9fb 0%,#a9cdf0 32%,#6ba0dd 68%,#2f5fa8 100%);}
.stage.awaiting-action{animation:stageGlowPulse 1.7s ease-in-out infinite;}
@keyframes stageGlowPulse{0%,100%{box-shadow:inset 0 0 0 3px rgba(255,209,102,.3);}50%{box-shadow:inset 0 0 0 3px rgba(255,209,102,.8);}}
.panel-veil{position:absolute;inset:0;pointer-events:none;z-index:150;background:rgba(6,7,20,.5);opacity:0;transition:opacity .6s ease;}
.panel-veil.veiled{opacity:1;}
.stage .panel-veil{backdrop-filter:saturate(.7);}
.stage-body{position:relative;flex:1;padding:0;display:flex;flex-direction:column;overflow:hidden;}
.toast{position:absolute;left:50%;top:12px;transform:translateX(-50%) translateY(-12px);background:rgba(10,11,32,.92);color:#fff;padding:11px 20px;border-radius:999px;font-size:14.5px;border:1px solid rgba(255,255,255,.15);opacity:0;transition:opacity .3s ease, transform .3s ease;pointer-events:none;z-index:200;}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0);}

/* --- 導入/まとめシーン --- */
.scene{flex:1;display:flex;align-items:center;justify-content:center;gap:22px;flex-wrap:wrap;padding:24px;}
.scene-char{display:flex;flex-direction:column;align-items:center;gap:8px;}
.scene-char img{width:170px;height:170px;object-fit:contain;filter:drop-shadow(0 10px 20px rgba(0,0,0,.4));}
.scene-char .name-tag{font-family:'Zen Maru Gothic',sans-serif;font-size:13px;font-weight:700;color:#fff;background:rgba(20,22,50,.78);padding:4px 13px;border-radius:999px;box-shadow:0 3px 8px rgba(0,0,0,.25);}
.scene-bubble{max-width:420px;background:#fff;border-radius:18px;padding:18px 22px;font-family:'Zen Maru Gothic',sans-serif;font-size:16px;line-height:1.85;color:var(--ink-900);box-shadow:0 10px 24px rgba(0,0,0,.3);}

.photo-card{background:#fff;border-radius:16px;padding:12px 12px 14px;box-shadow:0 16px 34px rgba(10,20,50,.35);max-width:440px;}
.photo-card img{width:100%;max-width:400px;display:block;border-radius:10px;object-fit:cover;}
.photo-card .photo-caption{margin-top:8px;text-align:center;font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:14.5px;color:var(--ink-900);}
.photo-card.small{max-width:260px;}
.photo-card.small img{max-width:236px;}
.ba-compare{display:flex;align-items:center;gap:18px;flex-wrap:wrap;justify-content:center;}
.ba-arrow{font-size:26px;color:#fff;filter:drop-shadow(0 4px 8px rgba(0,0,0,.4));}

/* --- デスクトップ領域 --- */
.desktop-area{position:relative;flex:1;padding:14px;}
.desktop-icon{position:absolute;width:92px;display:flex;flex-direction:column;align-items:center;gap:6px;cursor:grab;user-select:none;touch-action:none;}
.desktop-icon.dragging{cursor:grabbing;z-index:60;filter:drop-shadow(0 8px 14px rgba(0,0,0,.4));}
.desktop-icon .label{font-size:13.5px;color:#fff;text-align:center;text-shadow:0 1px 3px rgba(0,0,0,.7);line-height:1.3;max-width:90px;word-break:break-all;}
.rename-input{
  font-size:13px;text-align:center;max-width:96px;width:96px;
  border:2px solid var(--teal-500);border-radius:6px;padding:2px 4px;
  font-family:'Noto Sans JP',sans-serif;background:#fff;color:var(--ink-900);
  box-shadow:0 4px 10px rgba(0,0,0,.3);
}

/* Windows11風フォルダアイコン */
.ico-folder{width:62px;height:48px;position:relative;margin:0 auto;}
.ico-folder .back{position:absolute;top:2px;left:0;width:62px;height:40px;background:var(--win-folder-dark);border-radius:5px 9px 5px 5px;}
.ico-folder .tab{position:absolute;top:0;left:0;width:26px;height:9px;background:var(--win-folder-dark);border-radius:4px 4px 0 0;}
.ico-folder .front{position:absolute;bottom:0;left:0;width:62px;height:33px;background:linear-gradient(180deg,var(--win-folder),#ffb648);border-radius:3px 3px 7px 7px;box-shadow:0 3px 8px rgba(0,0,0,.35);}
.ico-folder.selected .front{outline:2px solid #4cc2ff;outline-offset:1px;background:linear-gradient(180deg,#ffd98f,#ffb648);}
.ico-folder .badge{position:absolute;bottom:-5px;right:-6px;background:var(--teal-500);color:#fff;font-size:9px;font-weight:700;min-width:16px;height:16px;border-radius:8px;display:flex;align-items:center;justify-content:center;box-shadow:0 2px 5px rgba(0,0,0,.35);padding:0 3px;}
.ico-folder.zip .front{background:repeating-linear-gradient(135deg,var(--violet-500) 0 5px,#6a4bea 5px 10px);}
.ico-folder.zip .back{background:#5a3fe0;}
.ico-folder.zip .tab{background:#5a3fe0;}
.ico-folder.zip::after{content:'';}
.ico-folder .zip-mark{position:absolute;top:8px;left:20px;width:10px;height:22px;background:repeating-linear-gradient(180deg,#fff 0 2px,transparent 2px 4px);opacity:.85;}

/* ファイルアイコン */
.ico-file{width:48px;height:58px;background:#fff;border-radius:3px;position:relative;margin:0 auto;box-shadow:0 3px 8px rgba(0,0,0,.3);clip-path:polygon(0 0,70% 0,100% 24%,100% 100%,0 100%);display:flex;align-items:flex-end;justify-content:center;overflow:hidden;}
.ico-file .strip{position:absolute;top:0;left:0;right:0;height:9px;}
.ico-file.jpg .strip{background:#34c759;}
.ico-file.txt .strip{background:#8a97ab;}
.ico-file .glyph{font-size:20px;margin-bottom:7px;}

.icon-hit{cursor:pointer;}
.pulse{animation:pulseZip .55s ease;}
@keyframes pulseZip{0%{transform:scale(1);}45%{transform:scale(.72) rotate(-4deg);}100%{transform:scale(1);}}
.shake{animation:shakeIt .4s ease;}
@keyframes shakeIt{0%,100%{transform:translateX(0);}25%{transform:translateX(-6px);}75%{transform:translateX(6px);}}
.drop-hi{outline:3px dashed #4cc2ff;outline-offset:3px;border-radius:8px;}

/* 次にすべき操作をしめすガイド演出 */
.pulse-ring{position:relative;}
.pulse-ring::after{content:'';position:absolute;inset:-10px;border-radius:16px;border:3px solid var(--gold-400);animation:pulseRingAnim 1.5s ease-out infinite;pointer-events:none;z-index:5;}
@keyframes pulseRingAnim{0%{transform:scale(.94);opacity:1;}70%{transform:scale(1.18);opacity:0;}100%{opacity:0;}}
.hint-arrow{position:absolute;font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:16px;color:var(--navy-900);background:var(--gold-400);padding:7px 16px;border-radius:999px;box-shadow:0 6px 14px rgba(0,0,0,.3);white-space:nowrap;z-index:6;animation:bounceHint 1.2s ease-in-out infinite;pointer-events:none;}
@keyframes bounceHint{0%,100%{transform:translateY(0);}50%{transform:translateY(-6px);}}

/* --- Win11風タスクバー --- */
.win-taskbar{height:56px;background:var(--win-taskbar);backdrop-filter:blur(14px);border-top:1px solid rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center;gap:16px;position:relative;transition:background .4s ease,border-color .4s ease;}
.os-mode .win-taskbar{background:rgba(245,248,252,.82);border-top:1px solid rgba(0,0,0,.06);}
.win-start{width:44px;height:44px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.06);cursor:pointer;transition:background .15s ease;}
.win-start:hover{background:rgba(255,255,255,.14);}
.os-mode .win-start:hover{background:rgba(0,0,0,.06);}
.win-start .grid4{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;width:19px;height:19px;}
.win-start .grid4 span{border-radius:2px;}
.win-start .grid4 span:nth-child(1){background:var(--win-accent1);}
.win-start .grid4 span:nth-child(2){background:var(--win-accent2);}
.win-start .grid4 span:nth-child(3){background:var(--win-accent3);}
.win-start .grid4 span:nth-child(4){background:var(--win-accent4);}
.win-search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border-radius:999px;padding:9px 18px;color:rgba(255,255,255,.55);font-size:13.5px;min-width:200px;transition:all .4s ease;}
.os-mode .win-search{background:rgba(255,255,255,.75);color:#5b6270;box-shadow:inset 0 0 0 1px rgba(0,0,0,.06);}
.win-taskicon{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;background:rgba(255,255,255,.06);color:#fff;font-size:16px;cursor:pointer;transition:all .4s ease;}
.os-mode .win-taskicon{color:#3c3c3c;}
.os-mode .win-taskicon:hover{background:rgba(0,0,0,.06);}
.win-taskicon.active{background:rgba(255,255,255,.16);}
.win-tray{position:absolute;right:16px;top:0;bottom:0;display:flex;align-items:center;gap:12px;color:rgba(255,255,255,.65);font-size:12px;transition:color .4s ease;}
.os-mode .win-tray{color:#3c3c3c;}
.win-tray .clock-stack{display:flex;flex-direction:column;align-items:flex-end;line-height:1.3;font-size:11.5px;}

/* --- コンテキストメニュー --- */
.ctx-menu{position:fixed;z-index:300;background:rgba(250,250,252,.98);backdrop-filter:blur(10px);border-radius:10px;box-shadow:0 12px 30px rgba(0,0,0,.35);border:1px solid rgba(0,0,0,.06);padding:7px;min-width:230px;font-size:15px;}
.ctx-item{display:flex;align-items:center;gap:11px;padding:10px 12px;border-radius:6px;cursor:pointer;color:var(--ink-900);}
.ctx-item:hover{background:#e8f0fe;}
.ctx-item i{width:16px;text-align:center;color:#5b6270;}
.ctx-sep{height:1px;background:rgba(0,0,0,.08);margin:5px 4px;}
.ctx-item.disabled{color:#b7bacb;cursor:not-allowed;}
.ctx-item.disabled:hover{background:none;}

/* --- Explorerウィンドウ --- */
.explorer-win{position:absolute;inset:12px;background:var(--win-window);backdrop-filter:blur(18px);border-radius:10px;box-shadow:0 20px 50px rgba(0,0,0,.45);display:flex;flex-direction:column;overflow:hidden;border:1px solid rgba(255,255,255,.4);}
.exp-titlebar{height:34px;background:var(--win-window-header);display:flex;align-items:center;justify-content:space-between;padding:0 10px;border-bottom:1px solid var(--win-border);}
.exp-titlebar .t{font-size:14px;color:var(--ink-900);font-weight:600;display:flex;align-items:center;gap:7px;}
.exp-titlebar .ctrl{display:flex;gap:6px;}
.exp-titlebar .ctrl button{width:26px;height:22px;border:none;background:none;border-radius:4px;cursor:pointer;color:var(--ink-600);font-size:11px;}
.exp-titlebar .ctrl button:hover{background:rgba(0,0,0,.06);}
.exp-titlebar .ctrl button.close:hover{background:#e81123;color:#fff;}
.exp-toolbar{height:38px;display:flex;align-items:center;gap:6px;padding:0 10px;border-bottom:1px solid var(--win-border);background:rgba(255,255,255,.5);}
.exp-toolbar .tbtn{width:26px;height:26px;border-radius:5px;display:flex;align-items:center;justify-content:center;color:var(--ink-600);font-size:12px;cursor:pointer;}
.exp-toolbar .tbtn:hover{background:rgba(0,0,0,.06);}
.exp-crumbbar{flex:1;display:flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--win-border);border-radius:6px;padding:6px 12px;font-size:13.5px;color:var(--ink-600);margin-left:4px;}
.crumb{cursor:pointer;color:var(--ink-900);}
.crumb:hover{text-decoration:underline;}
.crumb-sep{color:#b7bacb;}
.exp-body{flex:1;display:flex;overflow:hidden;}
.exp-nav{width:120px;background:rgba(255,255,255,.35);border-right:1px solid var(--win-border);padding:10px 6px;font-size:11.5px;color:var(--ink-600);}
.exp-nav .navitem{padding:6px 8px;border-radius:6px;display:flex;align-items:center;gap:6px;cursor:pointer;}
.exp-nav .navitem:hover{background:rgba(0,0,0,.05);}
.exp-content{flex:1;position:relative;padding:16px;overflow:auto;}
.exp-banner{position:absolute;top:0;left:0;right:0;background:#fff4ce;color:#8a6d00;font-size:13.5px;padding:9px 16px;border-bottom:1px solid #f2d98a;display:flex;align-items:center;gap:8px;}
.exp-grid{position:relative;padding-top:6px;display:flex;flex-wrap:wrap;gap:18px;align-content:flex-start;height:100%;}
.exp-grid.with-banner{padding-top:34px;}
.exp-empty{color:var(--ink-600);font-size:12.5px;padding:20px;}

/* --- 概念カード（動画のかわりのインタラクティブ解説） --- */
.concept-wrap{flex:1;padding:32px;overflow:auto;}
.concept-cards{display:flex;gap:24px;flex-wrap:wrap;}
.flip-card{width:280px;height:240px;cursor:pointer;}
.flip-inner{position:relative;width:100%;height:100%;}
.flip-card.flipped .flip-front{display:none;}
.flip-card:not(.flipped) .flip-back{display:none;}
.flip-face{position:absolute;inset:0;border-radius:18px;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:18px;text-align:center;animation:flipReveal .3s ease;}
@keyframes flipReveal{from{transform:scaleX(.85);opacity:.3;}to{transform:scaleX(1);opacity:1;}}
.flip-front{background:#fff;border:1px solid rgba(0,0,0,.08);color:var(--ink-900);box-shadow:0 10px 26px rgba(20,40,80,.2);}
.flip-front .ic{font-size:58px;margin-bottom:12px;}
.flip-front .lb{font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:22px;}
.flip-front .tap{font-size:14px;color:var(--ink-600);margin-top:10px;}
.flip-back{background:#fff;color:var(--ink-900);font-size:17px;line-height:1.7;}
.flip-back b{color:var(--teal-600);}

.nest-box-area{display:flex;gap:40px;align-items:center;flex-wrap:wrap;padding:16px 8px;}
.nest-box{width:230px;height:230px;border-radius:22px;display:flex;align-items:center;justify-content:center;cursor:pointer;position:relative;transition:transform .2s ease;}
.nest-box:hover{transform:scale(1.03);}
.nest-outer{background:linear-gradient(160deg,#ffcf7d,#f0a93a);box-shadow:0 14px 30px rgba(0,0,0,.35);}
.nest-mid{width:154px;height:154px;background:linear-gradient(160deg,#c4a7ff,#8b5cf6);border-radius:20px;box-shadow:0 10px 22px rgba(0,0,0,.3);display:flex;align-items:center;justify-content:center;}
.nest-inner{width:92px;height:92px;background:linear-gradient(160deg,#7de0c9,#33b090);border-radius:16px;box-shadow:0 8px 16px rgba(0,0,0,.25);display:flex;align-items:center;justify-content:center;color:#fff;font-size:32px;}
.nest-label{position:absolute;bottom:-30px;left:0;right:0;text-align:center;color:#fff;font-size:16px;font-family:'Zen Maru Gothic',sans-serif;text-shadow:0 1px 4px rgba(0,0,0,.5);}

.tree-widget{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;padding:16px 18px;max-width:360px;color:var(--ink-900);font-size:15.5px;box-shadow:0 10px 26px rgba(20,40,80,.18);}
.tree-node{cursor:pointer;padding:4px 0;display:flex;align-items:center;gap:6px;position:relative;}
.tree-node .chev{width:12px;font-size:9px;transition:transform .2s ease;}
.tree-node.open .chev{transform:rotate(90deg);}
.tree-children{margin-left:18px;display:none;border-left:1px dashed rgba(0,0,0,.18);padding-left:10px;}
.tree-children.show{display:block;}

.zip-compare{display:flex;gap:20px;align-items:center;justify-content:center;padding:14px;flex-wrap:wrap;}
.zip-box{width:160px;height:120px;border-radius:14px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;font-family:'Zen Maru Gothic',sans-serif;font-size:14.5px;gap:7px;transition:all .5s ease;}
.zip-box.before{background:#fff;border:1px solid rgba(0,0,0,.08);color:var(--ink-900);box-shadow:0 6px 18px rgba(20,40,80,.18);}
.zip-box.after{background:repeating-linear-gradient(135deg,var(--violet-500) 0 8px,#6a4bea 8px 16px);width:80px;height:70px;}
.zip-arrow{color:var(--navy-900);font-size:22px;font-weight:900;}

.guide-cta{margin-top:14px;background:linear-gradient(135deg,var(--teal-500),var(--teal-600));color:#fff;border:none;border-radius:12px;padding:10px 16px;font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:12.8px;cursor:pointer;}

/* ===== 右：ガイドパネル ===== */
.guide{position:relative;background:var(--panel-bg);padding:26px 28px 22px;display:flex;flex-direction:column;gap:16px;overflow-y:auto;height:100%;}
.guide-lower{position:relative;display:flex;flex-direction:column;gap:16px;}
.eyebrow-row{display:flex;justify-content:space-between;align-items:center;}
.eyebrow{font-size:12px;font-weight:700;color:var(--violet-500);letter-spacing:.08em;}
.sec-count{font-size:12px;color:var(--ink-600);font-weight:700;}
.novel-scene{position:relative;overflow:hidden;flex:0 0 50%;margin:-26px -28px 0;
  background:linear-gradient(180deg, rgba(10,10,30,.15) 0%, rgba(10,10,30,.05) 40%, rgba(6,6,20,.55) 100%), url('../images/scenes/classroom.jpg') center 30% / cover no-repeat;
  box-shadow:0 10px 30px rgba(10,10,40,.35);
  transition:background-image .4s ease;
}
.novel-scene.bg-messy{background-image:linear-gradient(180deg, rgba(10,10,30,.2) 0%, rgba(10,10,30,.1) 40%, rgba(6,6,20,.6) 100%), url('../images/scenes/desktop_verymessy.jpg');background-position:center;background-size:cover;}
.novel-scene.bg-clean{background-image:linear-gradient(180deg, rgba(10,10,30,.15) 0%, rgba(10,10,30,.05) 40%, rgba(6,6,20,.55) 100%), url('../images/scenes/desktop_clean.jpg');background-position:center;background-size:cover;}
.novel-scene.bg-celebrate{background-image:linear-gradient(180deg, rgba(10,10,30,.1) 0%, rgba(10,10,30,.05) 40%, rgba(6,6,20,.5) 100%), url('../images/scenes/celebration_day.jpg');background-position:center;background-size:cover;}
.novel-chars{position:absolute;left:0;right:0;bottom:104px;top:12px;display:flex;justify-content:space-between;align-items:flex-end;padding:0 40px;}
.novel-chars .left-group{display:flex;gap:4px;align-items:flex-end;}
.novel-char-slot{display:flex;flex-direction:column;align-items:center;transition:opacity .3s ease, transform .3s ease;}
.novel-char-slot img{height:min(128px, 19vh);width:auto;object-fit:contain;filter:drop-shadow(0 10px 14px rgba(0,0,0,.45));animation:novelFadeIn .35s ease;}
@keyframes novelFadeIn{from{opacity:0;transform:translateY(10px);}to{opacity:1;transform:translateY(0);}}
.novel-char-slot.dim{opacity:.4;transform:scale(.94);}
.novel-char-slot.active{opacity:1;transform:scale(1.05);}
.novel-textbox{position:absolute;left:0;right:0;bottom:0;background:rgba(6,7,22,.88);backdrop-filter:blur(8px);padding:20px 22px 18px;cursor:pointer;min-height:96px;box-shadow:0 -6px 20px rgba(0,0,0,.25);transition:background .2s ease;}
.novel-textbox:hover{background:rgba(10,11,30,.92);}
.vn-name{position:absolute;top:-16px;left:20px;background:var(--gold-400);color:var(--navy-900);font-family:'Zen Maru Gothic',sans-serif;font-weight:900;font-size:13px;padding:4px 16px;border-radius:999px;box-shadow:0 3px 8px rgba(0,0,0,.3);z-index:2;letter-spacing:.02em;}
.novel-text{color:#fff;font-family:'Zen Maru Gothic',sans-serif;font-weight:500;font-size:15.5px;line-height:1.75;}
.novel-text b{color:var(--gold-400);}
.vn-next{position:absolute;right:16px;bottom:12px;display:flex;align-items:center;gap:5px;color:var(--navy-900);background:var(--gold-400);font-family:'Zen Maru Gothic',sans-serif;font-weight:800;font-size:12.5px;padding:5px 12px 5px 10px;border-radius:999px;box-shadow:0 4px 10px rgba(0,0,0,.3);opacity:0;animation:vnBounce 1s ease-in-out infinite;}
.vn-next.show{opacity:1;}
@keyframes vnBounce{0%,100%{transform:translateY(0);}50%{transform:translateY(4px);}}
.mission-card{background:var(--panel-bg2);border-radius:var(--radius-lg);padding:20px 20px 18px;box-shadow:0 4px 14px rgba(20,20,60,.06);}
.mission-card h2{font-family:'Zen Maru Gothic',sans-serif;font-size:18px;margin:0 0 10px;color:var(--ink-900);}
.mission-card p{font-size:14.5px;line-height:1.85;color:var(--ink-600);margin:0;}
.hint-toggle{margin-top:10px;font-size:13.5px;color:var(--teal-600);font-weight:700;cursor:pointer;display:inline-flex;align-items:center;gap:4px;}
.hint-box{margin-top:8px;background:#eef7f6;border:1px dashed var(--teal-500);border-radius:10px;padding:10px 12px;font-size:13px;color:var(--teal-600);display:none;line-height:1.65;}
.hint-box.show{display:block;}
.status-line{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:700;color:var(--ink-600);}
.status-line .check{width:18px;height:18px;border-radius:50%;background:#dde1ef;display:flex;align-items:center;justify-content:center;color:#fff;font-size:10px;transition:background .3s ease;flex:none;}
.status-line.done .check{background:var(--teal-500);}
.next-btn{margin-top:auto;background:linear-gradient(135deg,var(--teal-500),var(--teal-600));color:#fff;border:none;border-radius:14px;padding:17px;font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:16px;cursor:pointer;box-shadow:0 8px 20px rgba(23,163,152,.35);transition:transform .15s ease,opacity .2s ease;}
.next-btn:disabled{opacity:.35;cursor:not-allowed;box-shadow:none;}
.next-btn:not(:disabled):hover{transform:translateY(-2px);}
.note{font-size:11.5px;color:#8b90a6;line-height:1.65;border-top:1px solid #e2e5f0;padding-top:10px;}

/* ===== かくにんクイズ ===== */
.quiz-card{background:var(--panel-bg2);border-radius:var(--radius-lg);padding:20px 20px 18px;box-shadow:0 4px 14px rgba(20,20,60,.06);border:2px solid var(--gold-400);}
.quiz-eyebrow{font-size:11.5px;font-weight:700;color:var(--gold-400);letter-spacing:.06em;display:flex;align-items:center;gap:6px;margin-bottom:6px;}
.quiz-q{font-family:'Zen Maru Gothic',sans-serif;font-size:16.5px;font-weight:700;color:var(--ink-900);margin:0 0 14px;line-height:1.6;}
.quiz-opts{display:flex;flex-direction:column;gap:9px;}
.quiz-opt{background:#f4f6fb;border:2px solid transparent;border-radius:12px;padding:12px 14px;font-size:14.5px;color:var(--ink-900);cursor:pointer;transition:all .15s ease;display:flex;align-items:center;gap:10px;}
.quiz-opt:hover{background:#e9edf7;}
.quiz-opt .qmark{width:22px;height:22px;border-radius:50%;background:#dde1ef;color:#8b90a6;font-size:11px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:none;}
.quiz-opt.correct{background:#e3f7f0;border-color:var(--teal-500);}
.quiz-opt.correct .qmark{background:var(--teal-500);color:#fff;}
.quiz-opt.wrong{background:#fdeceb;border-color:#ff6b6b;animation:quizShake .4s ease;}
.quiz-opt.wrong .qmark{background:#ff6b6b;color:#fff;}
@keyframes quizShake{0%,100%{transform:translateX(0);}25%{transform:translateX(-5px);}75%{transform:translateX(5px);}}
.quiz-feedback{margin-top:12px;font-size:13.5px;font-weight:700;display:flex;align-items:center;gap:6px;min-height:20px;}
.quiz-feedback.ok{color:var(--teal-600);}
.quiz-feedback.ng{color:#e05656;}

/* ハンバーガー */
.hamburger-overlay{position:fixed;inset:0;background:rgba(10,11,32,.55);display:none;align-items:flex-start;justify-content:flex-start;z-index:400;}
.hamburger-overlay.show{display:flex;}
.hamburger-panel{width:280px;height:100%;background:#fff;padding:18px;box-shadow:6px 0 24px rgba(0,0,0,.25);display:flex;flex-direction:column;gap:8px;overflow-y:auto;}
.hamburger-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;}
.hamburger-header .t{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;color:var(--ink-900);font-size:14px;}
.hamburger-close{background:none;border:none;font-size:16px;cursor:pointer;color:var(--ink-600);}
.hb-item{display:flex;align-items:center;gap:10px;padding:9px 11px;border-radius:10px;cursor:pointer;font-size:12.5px;color:var(--ink-900);font-weight:500;}
.hb-item:hover{background:#f4f6fb;}
.hb-item.current{background:#e7f6f4;color:var(--teal-600);font-weight:700;}
.hb-item.locked{color:#b7bacb;cursor:not-allowed;}
.hb-item .num{width:20px;height:20px;border-radius:50%;background:#e5e8f2;color:#8b90a6;font-size:10px;display:flex;align-items:center;justify-content:center;flex:none;}
.hb-item.done .num{background:var(--teal-500);color:#fff;}

/* 完了モーダル */
.completion-overlay{position:fixed;inset:0;background:linear-gradient(rgba(10,11,32,.55),rgba(10,11,32,.72)), url('../images/scenes/celebration_day.jpg') center / cover no-repeat;display:none;align-items:center;justify-content:center;z-index:410;}
.completion-overlay.show{display:flex;}
.completion-box{background:#fff;border-radius:22px;padding:30px 26px;max-width:330px;text-align:center;box-shadow:0 30px 60px rgba(0,0,0,.4);position:relative;}
.comp-icon{font-size:42px;margin-bottom:6px;}
.comp-title{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;font-size:18px;color:var(--ink-900);}
.comp-sub{font-size:12px;color:var(--ink-600);margin:4px 0 10px;}
.comp-stars{color:var(--gold-400);font-size:17px;margin-bottom:9px;letter-spacing:4px;}
.comp-msg{font-size:12.5px;color:var(--ink-600);line-height:1.75;margin:0 0 15px;}
.comp-xp{font-weight:700;color:var(--teal-600);font-size:12.5px;margin-bottom:13px;}
.comp-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:15px;color:#aab;cursor:pointer;}
.comp-next-btn{background:linear-gradient(135deg,var(--teal-500),var(--teal-600));color:#fff;border:none;border-radius:12px;padding:11px 16px;font-family:'Zen Maru Gothic',sans-serif;font-weight:700;font-size:13px;cursor:pointer;width:100%;}
canvas#confetti-canvas{position:fixed;inset:0;pointer-events:none;z-index:420;display:none;}

/* ===== クイズ正解の大きな演出 ===== */
.correct-burst{position:fixed;inset:0;z-index:430;display:flex;align-items:center;justify-content:center;pointer-events:none;opacity:0;background:radial-gradient(circle at center, rgba(255,209,102,.35) 0%, rgba(255,209,102,.08) 45%, transparent 70%);}
.correct-burst.show{animation:correctBurstBg .9s ease-out;}
@keyframes correctBurstBg{0%{opacity:0;}15%{opacity:1;}70%{opacity:1;}100%{opacity:0;}}
.cb-ring{position:absolute;width:60px;height:60px;border-radius:50%;border:6px solid var(--gold-400);opacity:0;}
.correct-burst.show .cb-ring{animation:cbRingExpand .9s ease-out;}
@keyframes cbRingExpand{0%{transform:scale(.3);opacity:.9;}70%{opacity:.25;}100%{transform:scale(9);opacity:0;}}
.cb-inner{display:flex;flex-direction:column;align-items:center;gap:6px;transform:scale(.4);opacity:0;}
.correct-burst.show .cb-inner{animation:cbPop .7s cubic-bezier(.34,1.56,.64,1) forwards;}
@keyframes cbPop{0%{transform:scale(.3) rotate(-8deg);opacity:0;}55%{transform:scale(1.15) rotate(3deg);opacity:1;}100%{transform:scale(1) rotate(0);opacity:1;}}
.cb-icon{font-size:76px;filter:drop-shadow(0 10px 18px rgba(0,0,0,.35));}
.cb-text{font-family:'Zen Maru Gothic',sans-serif;font-weight:900;font-size:44px;color:var(--gold-400);-webkit-text-stroke:2px var(--navy-900);text-shadow:0 6px 0 var(--navy-900),0 10px 24px rgba(0,0,0,.4);letter-spacing:.04em;}

/* 実機演習 */
.checklist-card{flex:1;margin:0;padding:20px;display:flex;flex-direction:column;gap:10px;overflow:auto;}
.checklist-card h3{font-family:'Zen Maru Gothic',sans-serif;color:var(--navy-900);text-shadow:0 1px 3px rgba(255,255,255,.4);margin:0 0 6px;font-size:19px;display:flex;align-items:center;gap:8px;}
.checklist-item{display:flex;align-items:flex-start;gap:10px;background:#fff;border-radius:12px;padding:11px 14px;cursor:pointer;transition:background .2s ease;box-shadow:0 4px 14px rgba(20,40,80,.14);}
.checklist-item:hover{background:#f4f8ff;}
.checklist-item .cb{width:22px;height:22px;border-radius:6px;border:2px solid #cdd3e0;flex:none;display:flex;align-items:center;justify-content:center;color:#fff;font-size:11px;margin-top:1px;}
.checklist-item.checked .cb{background:var(--teal-500);border-color:var(--teal-500);}
.checklist-item span.txt{color:var(--ink-900);font-size:15.5px;line-height:1.65;}
.checklist-item.checked span.txt{opacity:.6;text-decoration:line-through;}