/* ═══════════════════════════════════════════════════
   LGG German Complete — Duolingo-style UI  v3
═══════════════════════════════════════════════════ */
:root {
  --bg:#f7f8fa; --white:#fff; --s1:#f0f2f5; --s2:#e8eaf0;
  --border:#d9dbe5; --border2:#c8cad8;
  --acc:#58cc02; --acc-dk:#46a302; --acc-lt:#d7f5b0;
  --blue:#1cb0f6; --blue-dk:#0891cc;
  --red:#ff4b4b; --red-lt:#ffdfe0;
  --gold:#ffc800; --pur:#ce82ff; --org:#ff9600;
  --txt:#3c3c3c; --txt2:#777; --txt3:#afafaf;
  --nav-bg:#fff; --nav-h:60px;
  --path-w:480px;
  --r:16px; --r-sm:10px; --r-lg:24px;
  --shadow:0 2px 0 rgba(0,0,0,.2);
  --shadow-up:0 -2px 0 rgba(0,0,0,.15);
  --transition:.18s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--txt);font-family:'Nunito',sans-serif;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:var(--bg)}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}

/* ── BACK BAR ── */
.lgc-back-bar{display:flex;align-items:center;gap:10px;padding:8px 20px;background:#1a1d27;color:#fff;font-size:12px;font-weight:700;letter-spacing:.03em}
.lgc-back-bar a{color:#60a5fa;text-decoration:none;display:flex;align-items:center;gap:5px;transition:color var(--transition)}
.lgc-back-bar a:hover{color:#93c5fd}

/* ── NAV ── */
.nav{display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:var(--nav-h);background:var(--nav-bg);border-bottom:2px solid var(--border);position:sticky;top:0;z-index:300}
.nav-logo{font-family:'Nunito',sans-serif;font-size:1.5rem;font-weight:900;color:var(--acc);letter-spacing:-.01em;display:flex;align-items:center;gap:8px}
.nav-logo span{color:var(--txt);font-size:.75rem;font-weight:700;background:var(--s1);border:2px solid var(--border);border-radius:20px;padding:2px 10px;letter-spacing:.04em;text-transform:uppercase}
.nav-right{display:flex;align-items:center;gap:14px}
.nav-stat{display:flex;align-items:center;gap:5px;font-weight:800;font-size:.95rem;color:var(--txt)}
.nav-stat svg{width:22px;height:22px}
.nav-hearts{display:flex;gap:2px}
.hrt{font-size:1.2rem;transition:all .35s}
.hrt.dead{filter:grayscale(1);opacity:.25;transform:scale(.75)}
.nav-tab-strip{display:flex;gap:2px}
.ntab{padding:8px 18px;border-radius:var(--r-sm);font-size:.82rem;font-weight:800;cursor:pointer;border:none;background:transparent;color:var(--txt2);transition:all var(--transition);letter-spacing:.04em;text-transform:uppercase}
.ntab.on{background:var(--acc-lt);color:var(--acc-dk)}
.ntab:hover:not(.on){background:var(--s1);color:var(--txt)}

/* ── SCREENS ── */
.scr{display:none}
.scr.on{display:block}

/* ═══════════════════════════════════════════════════
   DUOLINGO HOME — level sections + topic path
═══════════════════════════════════════════════════ */
#home{max-width:var(--path-w);margin:0 auto;padding:20px 16px 120px}

/* Section header (A1.1, A1.2, etc.) */
.dl-section{margin-bottom:8px}
.dl-section-hdr{
  display:flex;align-items:center;justify-content:space-between;
  background:var(--acc);color:#fff;
  border-radius:var(--r);padding:16px 20px;
  margin-bottom:0;cursor:pointer;
  border-bottom:4px solid var(--acc-dk);
  transition:filter var(--transition);
  position:relative;
  user-select:none;
}
.dl-section-hdr:hover{filter:brightness(1.06)}
.dl-section-hdr.completed{background:#e5e5e5;border-bottom-color:#c5c5c5;color:#777}
.dl-section-hdr.active{background:var(--blue);border-bottom-color:var(--blue-dk)}
.dl-section-hdr.locked{background:#e5e5e5;border-bottom-color:#c5c5c5;color:#afafaf;cursor:default}
.dl-sec-left{}
.dl-sec-tag{font-size:.7rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase;opacity:.85;margin-bottom:3px;cursor:pointer}
.dl-sec-name{font-size:1.15rem;font-weight:900;letter-spacing:-.01em}
.dl-sec-sub{font-size:.78rem;opacity:.8;margin-top:3px}
.dl-sec-right{display:flex;align-items:center;gap:8px}
.dl-sec-badge{background:rgba(255,255,255,.25);border-radius:50px;padding:6px 14px;font-size:.78rem;font-weight:800;white-space:nowrap}
.dl-sec-lock{font-size:1.4rem}
.dl-sec-check{font-size:1.4rem}

/* See details toggle */
.dl-sec-details{display:none;background:rgba(0,0,0,.06);border-radius:0 0 var(--r) var(--r);overflow:hidden;margin-top:-4px}
.dl-sec-details.open{display:block}
.dl-sec-detail-inner{padding:12px 16px 8px}
.dl-sec-can{font-size:.82rem;font-style:italic;color:rgba(0,0,0,.55);padding:2px 0 8px}
.dl-see-btn{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:inherit;background:none;border:none;cursor:pointer;opacity:.75;display:flex;align-items:center;gap:4px;padding:0}
.dl-see-btn:hover{opacity:1}

/* Topic path (the winding nodes) */
.dl-path{padding:20px 0 12px;position:relative}
.dl-path-node{display:flex;flex-direction:column;align-items:center;margin-bottom:4px;position:relative}

/* Row of nodes — zigzag via margin */
.dl-row{display:flex;justify-content:center;margin:6px 0}
.dl-row.r-left {justify-content:flex-start;padding-left:80px}
.dl-row.r-right{justify-content:flex-end;padding-right:80px}
.dl-row.r-mid  {justify-content:center}

/* The circular node button */
.dl-node{
  width:72px;height:72px;border-radius:50%;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  cursor:pointer;border:none;position:relative;
  transition:transform .15s,filter .15s;
  font-family:'Nunito',sans-serif;
  box-shadow:0 4px 0 rgba(0,0,0,.25);
  text-decoration:none;
}
.dl-node:hover{transform:translateY(-2px);filter:brightness(1.08)}
.dl-node:active{transform:translateY(2px);box-shadow:0 2px 0 rgba(0,0,0,.25)}
.dl-node.done{background:var(--acc);color:#fff}
.dl-node.active{background:var(--acc);color:#fff;animation:nodePulse 2s infinite}
.dl-node.locked{background:#e5e5e5;color:#afafaf;cursor:not-allowed;box-shadow:0 4px 0 #c5c5c5}
.dl-node.locked:hover{transform:none;filter:none}
.dl-node.chest{background:var(--gold);color:#7a5100;box-shadow:0 4px 0 #cc9800}
.dl-node.trophy{background:var(--gold);color:#7a5100;box-shadow:0 4px 0 #cc9800}

@keyframes nodePulse{0%,100%{box-shadow:0 4px 0 rgba(0,0,0,.25),0 0 0 0 rgba(88,204,2,.4)}50%{box-shadow:0 4px 0 rgba(0,0,0,.25),0 0 0 10px rgba(88,204,2,0)}}

.dl-node-icon{font-size:1.5rem;line-height:1}
.dl-node-lbl{font-size:.55rem;font-weight:900;text-transform:uppercase;letter-spacing:.06em;margin-top:2px;line-height:1;text-align:center;max-width:60px}

/* Start button (pops out below active node) */
.dl-start-wrap{display:flex;justify-content:center;margin:-2px 0 6px;position:relative;z-index:10}
.dl-start-btn{
  background:#fff;color:var(--acc-dk);
  border:2px solid var(--border);border-bottom:4px solid var(--border2);
  border-radius:var(--r-sm);padding:8px 20px;
  font-family:'Nunito',sans-serif;font-weight:900;font-size:.85rem;
  cursor:pointer;transition:all var(--transition);
  display:flex;align-items:center;gap:6px;
  box-shadow:0 2px 8px rgba(0,0,0,.1);
  letter-spacing:.03em;text-transform:uppercase;
}
.dl-start-btn:hover{background:var(--acc);color:#fff;border-color:var(--acc-dk);transform:translateY(-1px)}

/* Speech bubble on active */
.dl-bubble{
  background:#fff;border:2px solid var(--border);
  border-radius:var(--r);padding:10px 16px;
  font-size:.82rem;font-weight:700;color:var(--txt2);
  max-width:220px;text-align:center;
  box-shadow:0 2px 8px rgba(0,0,0,.08);
  position:relative;margin-bottom:6px;
}
.dl-bubble::after{content:'';position:absolute;bottom:-10px;left:50%;transform:translateX(-50%);border:5px solid transparent;border-top-color:#fff}
.dl-bubble::before{content:'';position:absolute;bottom:-12px;left:50%;transform:translateX(-50%);border:6px solid transparent;border-top-color:var(--border)}

/* Connector lines between nodes */
.dl-connector{width:4px;height:24px;background:var(--border2);border-radius:2px;margin:0 auto}
.dl-connector.done{background:var(--acc)}

/* ═══════════════════════════════════════════════════
   TOPIC POPUP / DRAWER
═══════════════════════════════════════════════════ */
.topic-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:400;animation:fadeOverlay .2s}
.topic-overlay.open{display:block}
@keyframes fadeOverlay{from{opacity:0}to{opacity:1}}
.topic-drawer{
  position:fixed;bottom:0;left:0;right:0;
  background:#fff;border-radius:24px 24px 0 0;
  padding:24px 24px 40px;z-index:401;
  animation:slideUp .25s cubic-bezier(.32,1,.32,1);
  max-height:85vh;overflow-y:auto;
}
@keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}
.drawer-handle{width:40px;height:4px;background:var(--border2);border-radius:2px;margin:0 auto 20px}
.drawer-title{font-size:1.25rem;font-weight:900;margin-bottom:4px}
.drawer-sub{font-size:.82rem;color:var(--txt2);margin-bottom:20px}
.drawer-close{position:absolute;top:18px;right:20px;width:36px;height:36px;border-radius:50%;border:2px solid var(--border);background:transparent;font-size:1rem;cursor:pointer;color:var(--txt2);display:flex;align-items:center;justify-content:center;transition:all var(--transition)}
.drawer-close:hover{background:var(--s1);color:var(--txt)}
.story-list{}
.story-item{
  display:flex;align-items:center;gap:14px;
  padding:14px 0;border-bottom:2px solid var(--s1);
  cursor:pointer;transition:all var(--transition);
  border-radius:var(--r-sm);
}
.story-item:last-child{border-bottom:none}
.story-item:hover{background:var(--s1);padding-left:10px;padding-right:10px;margin:0 -10px}
.si-icon{width:52px;height:52px;border-radius:var(--r-sm);background:var(--s1);display:flex;align-items:center;justify-content:center;font-size:1.6rem;flex-shrink:0;border:2px solid var(--border)}
.si-icon.done-icon{background:var(--acc-lt);border-color:var(--acc)}
.si-body{flex:1}
.si-title{font-weight:800;font-size:.95rem;margin-bottom:2px}
.si-meta{font-size:.76rem;color:var(--txt2)}
.si-check{color:var(--acc);font-size:1.3rem;flex-shrink:0}
.si-lock{color:var(--txt3);font-size:1.1rem;flex-shrink:0}
.drawer-start-btn{
  width:100%;margin-top:20px;
  background:var(--acc);color:#fff;
  border:none;border-bottom:4px solid var(--acc-dk);border-radius:var(--r);
  padding:16px;font-family:'Nunito',sans-serif;font-weight:900;font-size:1rem;
  cursor:pointer;transition:all var(--transition);letter-spacing:.03em;
}
.drawer-start-btn:hover{filter:brightness(1.08);transform:translateY(-1px)}
.drawer-start-btn:active{transform:translateY(2px);border-bottom-width:2px}
.drawer-start-btn:disabled{background:#e5e5e5;color:#afafaf;border-bottom-color:#c5c5c5;cursor:not-allowed;transform:none}

/* ═══════════════════════════════════════════════════
   READING VIEW (unchanged layout, lighter theme)
═══════════════════════════════════════════════════ */
#reading{background:var(--bg)}
.r-top{margin-bottom:18px}
.r-back-btn{display:inline-flex;align-items:center;gap:6px;font-weight:800;font-size:.85rem;color:var(--txt2);cursor:pointer;border:2px solid var(--border);background:#fff;border-radius:var(--r-sm);padding:6px 14px;margin-bottom:16px;transition:all var(--transition)}
.r-back-btn:hover{border-color:var(--acc);color:var(--acc)}
.r-chap{font-size:.72rem;font-weight:900;letter-spacing:.14em;text-transform:uppercase;color:var(--acc-dk);margin-bottom:6px;display:flex;align-items:center;gap:7px}
.r-chap-badge{font-size:.65rem;padding:2px 9px;border-radius:20px;font-weight:900;color:#fff;background:var(--acc);letter-spacing:.06em}
.r-title{font-family:'Lora',serif;font-size:clamp(1.4rem,3vw,2rem);line-height:1.25;letter-spacing:-.01em;color:var(--txt)}
.r-prog-bar{height:8px;background:var(--s2);margin-bottom:22px;border-radius:4px;overflow:hidden;border:2px solid var(--border)}
.r-prog-fill{height:100%;background:var(--acc);border-radius:2px;transition:width .35s ease}

/* segment */
.seg-outer{margin-bottom:14px;border-radius:var(--r-sm);overflow:hidden;border:2px solid var(--border);transition:border-color .3s,box-shadow .3s;background:#fff}
.seg-outer.dim{opacity:.5}
.seg-outer.lit{border-color:var(--acc);box-shadow:0 0 0 2px var(--acc-lt)}
.seg{background:#fff;padding:20px 24px;font-family:'Lora',serif;font-size:1.05rem;line-height:2.15;border:none;border-radius:0;margin-bottom:0;color:var(--txt)}
.flip-bar{display:flex;border-top:2px solid var(--border);background:#fff}
.flip-btn{flex:1;padding:9px 0;font-size:.78rem;font-weight:900;font-family:'Nunito',sans-serif;cursor:pointer;border:none;transition:all var(--transition);letter-spacing:.06em;text-align:center;text-transform:uppercase}
.flip-btn-de{background:rgba(88,204,2,.06);color:var(--acc-dk)}.flip-btn-de.active{background:var(--acc);color:#fff}
.flip-btn-en{background:rgba(28,176,246,.06);color:var(--blue-dk)}.flip-btn-en.active{background:var(--blue);color:#fff}
.seg-de,.seg-en{transition:opacity .2s}
.seg-en{display:none;color:var(--blue-dk);font-style:italic;font-size:1rem;line-height:1.95}

/* audio bar */
.abar{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid var(--border);border-radius:50px;padding:8px 16px;margin-bottom:22px;position:sticky;top:68px;z-index:100;box-shadow:0 2px 8px rgba(0,0,0,.06)}
.abtn{width:40px;height:40px;border-radius:50%;background:var(--acc);border:none;border-bottom:3px solid var(--acc-dk);cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1rem;color:#fff;flex-shrink:0;transition:all var(--transition)}
.abtn:hover{filter:brightness(1.1)}
.abtn:active{border-bottom-width:1px;transform:translateY(2px)}
.abtn.sec{background:var(--s1);color:var(--txt2);border-bottom-color:var(--border2)}.abtn.sec:hover{background:var(--s2)}
.ptrack{flex:1;height:8px;background:var(--s2);border-radius:4px;cursor:pointer;position:relative;border:2px solid var(--border)}
.pfill{height:100%;background:var(--acc);border-radius:2px;width:0%;pointer-events:none;transition:width .12s linear}
.phandle{position:absolute;top:50%;right:0;transform:translate(50%,-50%);width:14px;height:14px;background:#fff;border:3px solid var(--acc);border-radius:50%;pointer-events:none}
.spill{background:var(--s1);border:2px solid var(--border);color:var(--txt2);border-radius:20px;padding:4px 12px;font-size:.78rem;cursor:pointer;transition:all var(--transition);font-family:'Nunito',sans-serif;flex-shrink:0;font-weight:800}
.spill:hover{border-color:var(--acc);color:var(--acc-dk)}

/* words */
.w{display:inline;cursor:pointer;border-radius:3px;padding:1px 2px;transition:background .12s}
.w:hover{background:rgba(88,204,2,.2)}
.w.sp{color:var(--acc-dk);font-weight:700;border-bottom:2px solid var(--acc)}
.w.cur{background:rgba(88,204,2,.3);border-radius:4px}

/* tooltip */
.tip{position:fixed;z-index:9999;background:#fff;border:2px solid var(--acc);border-radius:var(--r);padding:18px 18px 14px;width:min(320px,94vw);box-shadow:0 8px 32px rgba(0,0,0,.15);pointer-events:all;display:none;animation:tipIn .22s cubic-bezier(.34,1.56,.64,1)}
@media(max-width:600px){.tip{position:fixed!important;bottom:0!important;top:auto!important;left:0!important;right:0!important;width:100%!important;max-width:100%!important;border-radius:20px 20px 0 0;padding:20px 20px 36px;border:none;border-top:3px solid var(--acc);animation:tipSlideUp .24s ease}}
@keyframes tipIn{from{opacity:0;transform:scale(.88) translateY(8px)}to{opacity:1;transform:scale(1) translateY(0)}}
@keyframes tipSlideUp{from{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}
.tip-handle{display:none;width:38px;height:4px;background:var(--border2);border-radius:2px;margin:0 auto 14px}
@media(max-width:600px){.tip-handle{display:block}}
.tip-word{font-family:'Lora',serif;font-size:1.4rem;color:var(--acc-dk);margin-bottom:3px}
.tip-en{font-size:.96rem;color:var(--txt);font-weight:800;margin-bottom:10px}
.tip-gr{font-size:.78rem;color:var(--txt2);padding:8px 11px;background:var(--s1);border-radius:var(--r-sm);margin-bottom:14px;line-height:1.75;border:1px solid var(--border)}
.tip-gr b{color:var(--blue-dk)}
.tip-acts{display:flex;gap:8px}
.tip-save{flex:1;padding:10px 8px;border-radius:var(--r-sm);border:2px solid var(--acc);background:transparent;color:var(--acc-dk);font-size:.85rem;cursor:pointer;font-family:'Nunito',sans-serif;font-weight:800;transition:all var(--transition)}
.tip-save:hover,.tip-save.sv{background:var(--acc);color:#fff}
.tip-x{width:42px;height:42px;border-radius:var(--r-sm);border:2px solid var(--border);background:transparent;color:var(--txt2);font-size:1rem;cursor:pointer;transition:all var(--transition);flex-shrink:0}
.tip-x:hover{border-color:var(--red);color:var(--red)}

/* quiz card */
.qcard{background:#fff;border:2px solid var(--border);border-radius:var(--r);padding:24px;margin:18px 0;animation:qIn .3s ease;box-shadow:0 2px 4px rgba(0,0,0,.06)}
@keyframes qIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.qbadge{display:inline-flex;align-items:center;gap:5px;font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--acc-dk);font-weight:900;border:2px solid var(--acc-lt);border-radius:20px;padding:3px 11px;margin-bottom:13px;background:var(--acc-lt)}
.qq{font-family:'Lora',serif;font-size:1.1rem;margin-bottom:7px;line-height:1.6;color:var(--txt)}
.qsub{font-size:.84rem;color:var(--txt2);margin-bottom:18px}
.qfb{display:none;border-radius:var(--r-sm);padding:11px 14px;font-size:.88rem;font-weight:800;margin-bottom:12px;align-items:center;gap:8px}
.qfb.show{display:flex}
.qfb.ok{background:#d7f5b0;color:var(--acc-dk);border:2px solid var(--acc)}
.qfb.err{background:var(--red-lt);color:#c00;border:2px solid var(--red)}
.qacts{display:flex;gap:9px;justify-content:flex-end;margin-top:10px}
.qbtn{padding:10px 22px;border-radius:var(--r-sm);font-size:.85rem;font-family:'Nunito',sans-serif;font-weight:900;cursor:pointer;border:none;border-bottom:3px solid transparent;transition:all var(--transition);text-transform:uppercase;letter-spacing:.04em}
.qbtn-chk{background:var(--acc);color:#fff;border-bottom-color:var(--acc-dk)}.qbtn-chk:hover{filter:brightness(1.08)}
.qbtn-nxt{background:var(--blue);color:#fff;border-bottom-color:var(--blue-dk);display:none}.qbtn-nxt.on{display:block}.qbtn-nxt:hover{filter:brightness(1.08)}

/* fill tiles */
.fill-sentence{font-family:'Lora',serif;font-size:1.05rem;line-height:2.5;margin-bottom:18px;color:var(--txt)}
.blank-box{display:inline-flex;gap:4px;align-items:center;vertical-align:middle;flex-wrap:wrap;background:rgba(88,204,2,.07);border-radius:var(--r-sm);padding:3px 6px;min-width:60px;border:2px dashed var(--acc);cursor:pointer;transition:all var(--transition)}
.blank-box:hover{background:rgba(88,204,2,.14)}
.ltile{display:inline-flex;width:28px;height:32px;align-items:center;justify-content:center;background:var(--acc);color:#fff;border-radius:6px;font-weight:900;font-size:.95rem;font-family:'Nunito',sans-serif;cursor:pointer;transition:all .15s;user-select:none}
.ltile:hover{filter:brightness(1.1);transform:translateY(-2px)}
.ltile.used{opacity:.18;pointer-events:none}
.ltile.wrong-tile{background:var(--red);animation:shake .3s ease}
.letter-bank{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px;padding:12px;background:var(--s1);border-radius:var(--r-sm);min-height:48px;border:2px solid var(--border)}
.blank-placeholder{font-size:.85rem;color:var(--txt3);font-style:italic}

/* drag chips */
.wbank{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:14px;min-height:40px}
.wchip{background:#fff;border:2px solid var(--border);border-bottom:3px solid var(--border2);color:var(--txt);border-radius:var(--r-sm);padding:7px 13px;font-size:.88rem;cursor:pointer;transition:all var(--transition);user-select:none;font-weight:700}
.wchip:hover{border-color:var(--acc);color:var(--acc-dk);transform:translateY(-2px)}
.wchip.used{opacity:.2;pointer-events:none}
.dropz{min-height:50px;border:2px dashed var(--border2);border-radius:var(--r-sm);padding:9px 12px;display:flex;flex-wrap:wrap;gap:7px;align-items:center;transition:all var(--transition);margin-bottom:14px;background:var(--s1)}
.dropz.ov{border-color:var(--acc);background:rgba(88,204,2,.05)}
.dchip{background:var(--acc);color:#fff;border-radius:var(--r-sm);padding:7px 13px;font-size:.88rem;cursor:pointer;font-weight:800;transition:all var(--transition)}
.dchip:hover{background:var(--acc-dk)}
.dphint{color:var(--txt3);font-size:.85rem;font-style:italic}

/* match */
.match-wrap,.match-pairs-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:14px}
.match-wrap{max-height:340px;overflow-y:auto}
.match-col{display:flex;flex-direction:column;gap:6px}
.mi{padding:10px 12px;border-radius:var(--r-sm);border:2px solid var(--border);cursor:pointer;transition:all .2s;font-size:.88rem;text-align:center;background:#fff;user-select:none;line-height:1.3;min-height:40px;display:flex;align-items:center;justify-content:center;font-weight:700}
.mi:hover{border-color:var(--acc);background:rgba(88,204,2,.06)}
.mi.sel{border-color:var(--acc);background:rgba(88,204,2,.18);color:var(--acc-dk);font-weight:900;transform:scale(1.03)}
.mi.paired-ok{border-color:var(--acc);background:var(--acc-lt);color:var(--acc-dk);pointer-events:none;font-weight:800}
.mi.paired-err{border-color:var(--red);background:var(--red-lt);color:#c00;animation:shake .35s ease}
.mi.fading{opacity:0;transform:scale(.82);transition:all .4s ease;pointer-events:none}
.mi.sliding-in{animation:slideInPair .35s ease}
.mi.mi-ghost{border-color:transparent;background:transparent;pointer-events:none}
.match-counter{font-size:.8rem;color:var(--txt2);margin-bottom:10px;text-align:center;font-weight:700}

/* MCQ */
.mcq-prog{display:flex;gap:4px;margin-bottom:16px}
.mcq-pip{flex:1;height:6px;border-radius:3px;background:var(--s2);transition:background .3s}
.mcq-pip.done{background:var(--acc)}
.mcq-pip.active{background:var(--acc)}
.mcq-word{font-family:'Lora',serif;font-size:2rem;color:var(--acc-dk);text-align:center;margin:10px 0 4px}
.mcq-hint{font-size:.78rem;color:var(--txt2);text-align:center;margin-bottom:20px;font-style:italic}
.mcq-opts{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px}
.mcq-opt{padding:14px 10px;border-radius:var(--r-sm);border:2px solid var(--border);border-bottom:3px solid var(--border2);background:#fff;color:var(--txt);font-size:.9rem;font-family:'Nunito',sans-serif;font-weight:700;cursor:pointer;transition:all var(--transition);text-align:center;line-height:1.35}
.mcq-opt:hover:not(:disabled){border-color:var(--acc);background:rgba(88,204,2,.08);color:var(--acc-dk)}
.mcq-opt:disabled{cursor:default}
.mcq-opt.mcq-correct{border-color:var(--acc);background:var(--acc-lt);color:var(--acc-dk);font-weight:900}
.mcq-opt.mcq-wrong{border-color:var(--red);background:var(--red-lt);color:#c00;font-weight:900}

/* fill updates */
.lbank-wrap{margin-bottom:16px}
.lbank-label{font-size:.73rem;color:var(--txt2);margin-bottom:7px;text-transform:uppercase;letter-spacing:.1em;font-weight:800}
.typed-tile{display:inline-flex;width:24px;height:28px;align-items:center;justify-content:center;background:var(--acc);color:#fff;border-radius:5px;font-weight:900;font-size:.9rem;margin:1px}

/* done banner */
.done-banner{display:none;background:#fff;border:2px solid var(--acc);border-radius:var(--r);padding:32px;text-align:center;margin-top:28px;animation:qIn .4s ease;box-shadow:0 4px 24px rgba(88,204,2,.15)}
.done-banner.show{display:block}
.db-icon{font-size:3.5rem;margin-bottom:12px}
.db-title{font-family:'Lora',serif;font-size:1.7rem;margin-bottom:8px;color:var(--acc-dk)}
.db-sub{color:var(--txt2);margin-bottom:22px;font-size:.95rem}
.db-acts{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.dbtn{padding:12px 28px;border-radius:var(--r-sm);font-size:.9rem;font-family:'Nunito',sans-serif;font-weight:900;cursor:pointer;border:none;border-bottom:3px solid transparent;transition:all var(--transition);text-transform:uppercase;letter-spacing:.04em}
.dbtn-p{background:var(--acc);color:#fff;border-bottom-color:var(--acc-dk)}.dbtn-p:hover{filter:brightness(1.08);transform:translateY(-1px)}
.dbtn-o{background:transparent;color:var(--txt2);border:2px solid var(--border)}.dbtn-o:hover{border-color:var(--txt)}

/* game over */
#gover{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);z-index:500;align-items:center;justify-content:center}
#gover.show{display:flex}
.go-box{background:#fff;border:2px solid var(--red);border-radius:var(--r);padding:44px 32px;text-align:center;max-width:380px;width:90%;animation:qIn .4s ease;box-shadow:0 12px 48px rgba(255,75,75,.2)}
.go-t{font-family:'Lora',serif;font-size:1.8rem;color:var(--red);margin-bottom:8px}
.go-s{color:var(--txt2);margin-bottom:26px;font-size:.93rem}

/* vocab page */
#vocab{max-width:760px;margin:0 auto;padding:36px 18px 100px}
.vh{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;flex-wrap:wrap;gap:10px}
.vh h2{font-size:1.7rem;font-weight:900;color:var(--txt)}
.varow{display:flex;gap:8px}
.vbtn{padding:8px 18px;border-radius:var(--r-sm);font-size:.82rem;font-family:'Nunito',sans-serif;font-weight:900;cursor:pointer;border:2px solid transparent;border-bottom:3px solid transparent;transition:all var(--transition);text-transform:uppercase;letter-spacing:.04em}
.vbp{background:var(--acc);color:#fff;border-bottom-color:var(--acc-dk)}.vbp:hover{filter:brightness(1.08)}
.vbo{background:transparent;color:var(--txt2);border-color:var(--border);border-bottom-color:var(--border2)}.vbo:hover{border-color:var(--acc);color:var(--acc-dk)}
.vempty{text-align:center;padding:72px 20px;color:var(--txt2)}
.vempty .ei{font-size:4rem;margin-bottom:14px}
.vlist{display:grid;grid-template-columns:repeat(auto-fill,minmax(210px,1fr));gap:12px;margin-bottom:32px}
.vc{background:#fff;border:2px solid var(--border);border-radius:var(--r-sm);padding:14px;position:relative;transition:all var(--transition)}
.vc:hover{border-color:var(--acc);transform:translateY(-2px)}
.vc-w{font-family:'Lora',serif;font-size:1.1rem;color:var(--acc-dk);margin-bottom:3px}
.vc-e{font-size:.88rem;color:var(--txt);font-weight:700;margin-bottom:5px}
.vc-g{font-size:.75rem;color:var(--txt2);line-height:1.55}
.vc-del{position:absolute;top:8px;right:8px;width:24px;height:24px;border-radius:5px;border:none;background:transparent;color:var(--txt3);cursor:pointer;font-size:.8rem;transition:all var(--transition)}
.vc-del:hover{background:var(--red-lt);color:var(--red)}
.vc-mbar{height:4px;border-radius:2px;margin-top:9px;background:var(--s2);overflow:hidden}
.vc-mfill{height:100%;border-radius:2px;background:var(--acc);transition:width .4s}

/* practice */
.prac-sec{border-top:2px solid var(--border);padding-top:32px}
.prac-sec h3{font-size:1.3rem;font-weight:900;margin-bottom:7px}
.prac-desc{color:var(--txt2);font-size:.88rem;margin-bottom:22px}
.ppbar{height:8px;background:var(--s2);border-radius:4px;margin-bottom:18px;overflow:hidden;border:2px solid var(--border)}
.ppfill{height:100%;background:var(--acc);border-radius:2px;transition:width .4s}
.pstats{display:flex;gap:24px;justify-content:center;margin-bottom:20px}
.pst{text-align:center}
.pst-v{font-size:1.5rem;font-weight:900}
.pst-l{font-size:.72rem;color:var(--txt2);text-transform:uppercase;letter-spacing:.1em;font-weight:800}
.fcard{background:#fff;border:2px solid var(--border);border-bottom:4px solid var(--border2);border-radius:var(--r);min-height:200px;cursor:pointer;perspective:1000px;margin-bottom:18px;position:relative;transition:all var(--transition)}
.fcard:hover{border-color:var(--acc);transform:translateY(-2px)}
.fci{width:100%;height:100%;min-height:200px;transition:transform .48s;transform-style:preserve-3d;position:relative}
.fcard.flip .fci{transform:rotateY(180deg)}
.fc-f,.fc-b{position:absolute;inset:0;backface-visibility:hidden;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:32px;text-align:center;border-radius:var(--r)}
.fc-b{transform:rotateY(180deg);background:#fff}
.fc-lbl{font-size:.72rem;text-transform:uppercase;letter-spacing:.14em;color:var(--txt3);margin-bottom:12px;font-weight:800}
.fc-dw{font-family:'Lora',serif;font-size:2rem;color:var(--acc-dk)}
.fc-ew{font-size:1.2rem;color:var(--txt);font-weight:800;margin-bottom:6px}
.fc-gr{font-size:.82rem;color:var(--txt2);max-width:250px;line-height:1.65}
.fc-hint{font-size:.8rem;color:var(--txt3);margin-top:8px}
.pctrls{display:flex;gap:10px;justify-content:center;margin-top:4px}
.pc{padding:11px 26px;border-radius:var(--r-sm);font-size:.88rem;font-family:'Nunito',sans-serif;font-weight:900;cursor:pointer;border:2px solid;border-bottom:3px solid;transition:all var(--transition);text-transform:uppercase}
.pc-w{background:var(--red-lt);color:#c00;border-color:var(--red);border-bottom-color:#c00}.pc-w:hover{background:#ffc5c5}
.pc-r{background:var(--acc-lt);color:var(--acc-dk);border-color:var(--acc);border-bottom-color:var(--acc-dk)}.pc-r:hover{background:#c8f090}
/* Flashcard flip WebKit fix */
.fc-f,.fc-b{-webkit-backface-visibility:hidden;backface-visibility:hidden}
.fci{-webkit-transform-style:preserve-3d;transform-style:preserve-3d}
.fcard.flip .fci{-webkit-transform:rotateY(180deg);transform:rotateY(180deg)}
/* Pronunciation button */
.fc-speak{background:none;border:none;font-size:1.05rem;cursor:pointer;padding:4px 8px;border-radius:20px;color:var(--txt3);transition:all .15s;margin-top:8px;line-height:1;display:inline-flex;align-items:center;gap:4px;font-family:'Nunito',sans-serif;font-weight:700;font-size:.82rem}
.fc-speak:hover{background:var(--s2);color:var(--acc-dk)}
.fc-speak:active{transform:scale(.95)}
/* Match test */
.match-item{padding:10px 12px;border:2px solid var(--border);border-radius:var(--r-sm);font-size:.88rem;font-weight:700;cursor:pointer;transition:all .2s;background:#fff;color:var(--txt);text-align:center;line-height:1.3}
.match-item:hover{border-color:var(--acc);color:var(--acc-dk)}
.match-item.match-sel{border-color:var(--acc);background:var(--acc-lt);color:var(--acc-dk)}
.match-item.match-done{border-color:var(--acc);background:var(--acc-lt);color:var(--acc-dk);cursor:default;opacity:.6;pointer-events:none}
.match-item.match-wrong{border-color:var(--red);background:#ffe5e5;color:#c00}
/* Article test */
.art-btn:hover:not(:disabled){border-color:var(--acc)!important;color:var(--acc-dk)!important;transform:translateY(-2px)}
.art-btn:active:not(:disabled){transform:translateY(1px)}
.sdone{display:none;text-align:center;padding:40px 20px;background:#fff;border-radius:var(--r);border:2px solid var(--acc)}
.sdone.show{display:block}
.ptabs{display:flex;gap:6px;margin-bottom:22px;flex-wrap:wrap}
.ptab{padding:8px 16px;border-radius:var(--r-sm);font-size:.82rem;font-weight:900;cursor:pointer;border:2px solid var(--border);border-bottom:3px solid var(--border2);background:#fff;color:var(--txt2);transition:all var(--transition);font-family:'Nunito',sans-serif;text-transform:uppercase}
.ptab.on{background:var(--acc);color:#fff;border-color:var(--acc);border-bottom-color:var(--acc-dk)}
.ptab:hover:not(.on){border-color:var(--acc);color:var(--acc-dk)}

/* chapter quiz banner */
.chapter-quiz-wrap{background:#fff;border:2px solid var(--border);border-radius:var(--r);padding:26px;margin-top:30px;animation:qIn .4s ease}
.cq-title{font-family:'Lora',serif;font-size:1.3rem;margin-bottom:6px;color:var(--acc-dk)}
.cq-sub{color:var(--txt2);font-size:.88rem;margin-bottom:20px}
.cq-prog-bar{height:8px;background:var(--s2);border-radius:4px;margin-bottom:16px;overflow:hidden;border:2px solid var(--border)}
.cq-prog-fill{height:100%;background:var(--acc);border-radius:2px;transition:width .4s}
.cq-stats{display:flex;gap:20px;margin-bottom:16px}
.cq-stat{text-align:center}
.cq-stat-v{font-size:1.3rem;font-weight:900}
.cq-stat-l{font-size:.7rem;color:var(--txt2);text-transform:uppercase;letter-spacing:.1em;font-weight:800}

/* vocab MCQ */
.vmcq-card{background:#fff;border:2px solid var(--border);border-radius:var(--r-sm);padding:22px;margin-bottom:14px;animation:qIn .3s ease}
.vmcq-word{font-family:'Lora',serif;font-size:1.8rem;color:var(--acc-dk);text-align:center;margin:10px 0 4px}
.vmcq-sub{font-size:.78rem;color:var(--txt2);text-align:center;margin-bottom:18px;font-style:italic}
.vmcq-opts{display:grid;grid-template-columns:1fr 1fr;gap:8px}
.vmcq-opt{padding:12px 10px;border-radius:var(--r-sm);border:2px solid var(--border);border-bottom:3px solid var(--border2);background:#fff;color:var(--txt);font-size:.88rem;font-family:'Nunito',sans-serif;font-weight:700;cursor:pointer;transition:all var(--transition);text-align:center}
.vmcq-opt:hover:not(:disabled){border-color:var(--acc);background:rgba(88,204,2,.07)}
.vmcq-opt:disabled{cursor:default}
.vmcq-opt.v-correct{border-color:var(--acc)!important;background:var(--acc-lt)!important;color:var(--acc-dk)!important;font-weight:900}
.vmcq-opt.v-wrong{border-color:var(--red)!important;background:var(--red-lt)!important;color:#c00!important;font-weight:900}
.vmcq-prog{display:flex;gap:4px;margin-bottom:14px;flex-wrap:wrap}
.vmcq-pip{flex:1;height:6px;border-radius:3px;background:var(--s2);transition:background .3s;flex-shrink:0}
.vmcq-pip.done-ok{background:var(--acc)}
.vmcq-pip.done-err{background:var(--red)}
.vmcq-pip.cur{background:var(--acc)}

/* write */
.write-input{width:100%;padding:12px 14px;border-radius:var(--r-sm);border:2px solid var(--border);background:#fff;color:var(--txt);font-size:1rem;font-family:'Nunito',sans-serif;resize:vertical;box-sizing:border-box;margin:12px 0 6px;transition:border-color var(--transition)}
.write-input:focus{outline:none;border-color:var(--acc);box-shadow:0 0 0 3px rgba(88,204,2,.15)}
.write-input:disabled{opacity:.7}
.wa-others{margin-top:10px;padding:10px 12px;background:var(--s1);border-radius:var(--r-sm);border:1px solid var(--border)}
.wa-label{font-size:.72rem;color:var(--txt2);text-transform:uppercase;letter-spacing:.1em;margin-bottom:8px;font-weight:800}
.wa-chip{display:inline-block;background:#fff;border:1px solid var(--border);border-radius:20px;padding:4px 12px;font-size:.82rem;margin:3px 4px 3px 0;color:var(--txt)}
.qq-hint{font-size:.82rem;color:var(--blue-dk);background:rgba(28,176,246,.08);border-radius:var(--r-sm);padding:6px 10px;margin-bottom:10px;border-left:3px solid var(--blue)}

/* gender */
.gender-chips{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px;min-height:44px;padding:8px;background:var(--s1);border-radius:var(--r-sm);border:2px solid var(--border)}
.gender-chip{padding:8px 16px;border-radius:20px;border:2px solid var(--acc);background:#fff;color:var(--acc-dk);font-weight:900;cursor:grab;user-select:none;transition:all var(--transition);font-size:.92rem}
.gender-chip:hover{background:rgba(88,204,2,.1);transform:scale(1.05)}
.gender-chip.sel{background:var(--acc);color:#fff;transform:scale(1.08)}
.gender-chip.placed{opacity:.3;cursor:default;border-style:dashed}
.gender-chip.correct-placed{border-color:var(--acc);color:var(--acc-dk);opacity:1}
.gender-chip.wrong-placed{border-color:var(--red);color:#c00;opacity:1}
.gender-drums{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:14px}
@media(min-width:600px){.gender-drums{grid-template-columns:repeat(4,1fr)}}
.gender-drum{border:2px solid;border-radius:var(--r-sm);overflow:hidden;min-height:100px;cursor:pointer;transition:all var(--transition)}
.gender-drum.gdrum-hover{transform:scale(1.03)}
.gdrum-header{padding:8px 0;text-align:center;font-size:1.2rem;font-weight:900}
.gdrum-sub{font-size:.68rem;color:var(--txt2);text-align:center;padding:4px 0;text-transform:uppercase;letter-spacing:.1em;font-weight:800}
.gdrum-items{padding:6px;display:flex;flex-wrap:wrap;gap:4px;min-height:36px}
.gdrum-item{padding:3px 10px;border-radius:20px;background:var(--s1);border:1px solid var(--border);font-size:.8rem;cursor:pointer;transition:all .15s}
.gdrum-item:hover{border-color:var(--red)}

/* dialogue */
.dlg-line{display:flex;align-items:flex-start;gap:10px;margin:10px 0;line-height:1.65}
.dlg-speaker{flex-shrink:0;font-weight:900;font-size:.75rem;letter-spacing:.04em;text-transform:uppercase;border:2px solid;border-radius:20px;padding:2px 10px;margin-top:2px;white-space:nowrap;min-width:62px;text-align:center}
.dlg-text{flex:1;font-size:1rem;color:var(--txt)}
.dlg-text .w{display:inline}

/* comprehension */
.q-comprehension-q{font-size:1.05rem;font-weight:700;color:var(--txt);margin:10px 0 4px}
.q-comprehension-hint{font-size:.82rem;color:var(--txt2);margin-bottom:12px;font-style:italic}
.q-comprehension-sentence{line-height:1.85}
.qbtn-check{display:block;margin:14px auto 0;background:var(--acc);color:#fff;border:none;border-bottom:3px solid var(--acc-dk);border-radius:var(--r-sm);padding:9px 28px;font-size:.9rem;font-weight:900;cursor:pointer;transition:all var(--transition);text-transform:uppercase}
.qbtn-check:hover{filter:brightness(1.08);transform:translateY(-1px)}

/* admin */
.dg-seg-preview{background:#f0f0f1;border-left:3px solid #0073aa;padding:8px 12px;margin:0 0 16px;font-size:13px;border-radius:0 4px 4px 0}
.dg-qtype-legend{background:#fff;border:1px solid #ddd;border-radius:4px;padding:12px 16px;margin-bottom:16px;font-size:13px;line-height:2}
.dg-badge{display:inline-block;padding:2px 8px;border-radius:10px;font-size:11px;font-weight:700;text-transform:uppercase;margin:0 2px}
.dg-badge-match{background:#e5f5e5;color:#1a7f37}.dg-badge-mcq{background:#fff3cd;color:#856404}.dg-badge-fill{background:#e3f0fb;color:#0550ae}.dg-badge-drag{background:#fde8e8;color:#b91c1c}.dg-badge-write{background:#f3e8ff;color:#6b21a8}.dg-badge-gender{background:#e0f2fe;color:#075985}

/* animations */
@keyframes shake{0%,100%{transform:translateX(0)}20%{transform:translateX(-5px)}40%{transform:translateX(5px)}60%{transform:translateX(-4px)}80%{transform:translateX(4px)}}
.shake{animation:shake .35s ease}
@keyframes hpop{0%{transform:scale(1)}40%{transform:scale(1.45)}100%{transform:scale(.8);opacity:.25}}
.hpop{animation:hpop .45s ease forwards}
@keyframes pairPop{0%{transform:scale(1)}50%{transform:scale(1.09)}100%{transform:scale(1)}}
@keyframes slideInPair{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* responsive */
@media(max-width:640px){
  .nav{padding:0 14px}.nav-logo{font-size:1.2rem}
  #home{padding:14px 12px 100px}
  .dl-section-hdr{padding:14px 16px}
  .dl-sec-name{font-size:1rem}
  .dl-node{width:60px;height:60px}
  .dl-node-icon{font-size:1.2rem}
  .seg{padding:16px 14px;font-size:.97rem}
  .qcard{padding:16px 14px}
  .mcq-opts{grid-template-columns:1fr 1fr}
}

/* ═══════════════════════════════════════════════════
   UNIT HUB SCREEN
═══════════════════════════════════════════════════ */
.hub-header{display:flex;align-items:center;gap:16px;margin-bottom:8px;padding:20px;background:#fff;border-radius:var(--r);border:2px solid var(--border)}
.hub-emoji{font-size:3rem;flex-shrink:0;line-height:1}
.hub-info{flex:1}
.hub-breadcrumb{font-size:.72rem;font-weight:900;text-transform:uppercase;letter-spacing:.12em;color:var(--txt2);margin-bottom:4px}
.hub-title{font-family:'Lora',serif;font-size:1.5rem;font-weight:700;color:var(--txt);margin-bottom:2px;line-height:1.2}
.hub-subtitle{font-size:.88rem;color:var(--txt2);font-weight:600}
.hub-word-count{font-size:.82rem;color:var(--txt2);font-weight:700;text-align:center;padding:8px 0 16px;letter-spacing:.04em;text-transform:uppercase}

/* 2-column tile grid */
.hub-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hub-tile{
  border-radius:var(--r);padding:22px 16px;
  cursor:pointer;transition:all var(--transition);
  border-bottom-width:4px!important;
  display:flex;flex-direction:column;align-items:center;text-align:center;gap:6px;
  min-height:130px;justify-content:center;
  box-shadow:0 2px 4px rgba(0,0,0,.06);
  position:relative;overflow:hidden;
  background-color:transparent;outline:none;
  -webkit-appearance:none;appearance:none;
}
button.hub-tile{border-style:solid;}
.hub-tile:hover:not(.hub-tile-locked){transform:translateY(-3px);box-shadow:0 6px 20px rgba(0,0,0,.12)}
.hub-tile:active:not(.hub-tile-locked){transform:translateY(1px);box-shadow:0 1px 4px rgba(0,0,0,.1)}
.hub-tile-locked{cursor:not-allowed;opacity:.65}
.hub-tile-icon{font-size:2rem;line-height:1;margin-bottom:2px}
.hub-tile-label{font-size:.95rem;font-weight:900;letter-spacing:.01em}
.hub-tile-desc{font-size:.72rem;line-height:1.4;max-width:140px}

/* Story tile — full width */
.hub-tile.hub-tile-story,.hub-tile.hub-tile-conv{grid-column:span 1}

/* Make story + conv tiles span full row when both present */
.hub-grid .hub-tile:nth-child(5),
.hub-grid .hub-tile:nth-child(6){
  /* keep 2-col layout — they sit side by side in the grid naturally */
}