:root{
  --violet:#6d4aff;--violet2:#8b6cff;--ink:#1d1830;--muted:#6f6a7c;--bg:#f7f5ff;--card:#fff;--line:#ece8f5;
  --coral:#ff6f61;--cyan:#22b8cf;--green:#37b878;--amber:#f6a623;--blue:#4385f5;--shadow:0 18px 50px rgba(47,30,98,.10)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Nunito,system-ui,sans-serif;background:var(--bg);color:var(--ink)}button,input,textarea,select{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #b9a8ff;outline-offset:2px}
.app-shell{min-height:100vh;padding-bottom:92px}.topbar{height:76px;background:#fff;display:flex;align-items:center;justify-content:space-between;padding:10px clamp(14px,3vw,36px);position:sticky;top:0;z-index:40;border-bottom:1px solid var(--line)}
.brand{border:0;background:transparent;display:flex;align-items:center;gap:10px;text-align:left;color:var(--ink);min-width:0}.brand-mark{display:grid;place-items:center;background:linear-gradient(135deg,var(--violet),#9c72ff);color:#fff;font-weight:900;width:48px;height:48px;border-radius:16px;box-shadow:0 8px 20px rgba(109,74,255,.25)}.brand-copy{display:flex;flex-direction:column;line-height:1.05}.brand-copy b{font-size:15px}.brand-copy small{font-size:10px;color:var(--muted);margin-top:4px}
.profile-chip{border:0;background:#f4f0ff;padding:6px 10px 6px 7px;border-radius:999px;display:flex;align-items:center;gap:7px;text-align:left;color:var(--ink)}.profile-chip span:last-child{display:flex;flex-direction:column;line-height:1.05}.profile-chip b{font-size:12px}.profile-chip small{font-size:10px;color:var(--muted);margin-top:3px}.avatar-mini{width:34px;height:34px;background:#fff;display:grid;place-items:center;border-radius:50%}
main{max-width:1180px;margin:0 auto;padding:24px clamp(14px,3vw,34px)}.screen{display:none;animation:fadeUp .28s ease}.screen.active{display:block}@keyframes fadeUp{from{opacity:.25;transform:translateY(8px)}to{opacity:1;transform:none}}
.hero-card{background:linear-gradient(125deg,#5c3df3,#7d5cff 56%,#a58cff);color:#fff;border-radius:32px;padding:clamp(24px,5vw,52px);display:flex;align-items:center;justify-content:space-between;gap:20px;overflow:hidden;position:relative;box-shadow:var(--shadow)}.hero-card:before{content:"";position:absolute;width:280px;height:280px;border-radius:50%;background:rgba(255,255,255,.09);right:-70px;top:-100px}.hero-copy{max-width:680px;position:relative;z-index:2}.eyebrow{font-size:11px;letter-spacing:.12em;font-weight:900;color:#efeaff}.eyebrow.dark{color:var(--violet)}.hero-card h1{font-size:clamp(30px,5vw,52px);line-height:1.02;margin:8px 0 10px}.hero-card p{font-size:clamp(14px,2vw,18px);line-height:1.55;max-width:650px;margin:0}.hero-buttons{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.primary,.secondary,.ghost,.send-btn,.mic-btn{border:0;border-radius:15px;padding:13px 17px;font-weight:900;transition:.2s transform,.2s box-shadow}.primary{background:var(--violet);color:#fff;box-shadow:0 9px 24px rgba(109,74,255,.25)}.hero-card .primary{background:#fff;color:var(--violet)}.secondary{background:#eee9ff;color:var(--violet)}.hero-card .secondary{background:rgba(255,255,255,.17);color:#fff;border:1px solid rgba(255,255,255,.3)}.ghost{background:#fff;color:var(--muted);border:1px solid var(--line)}.primary:hover,.secondary:hover,.ghost:hover,.send-btn:hover,.mic-btn:hover{transform:translateY(-1px)}.wide{width:100%;display:block;text-align:center}
.teacher-orb{width:190px;height:190px;border-radius:50%;background:rgba(255,255,255,.14);display:grid;place-items:center;position:relative;flex:0 0 auto}.orb-face{width:120px;height:120px;background:#fff;border-radius:43% 43% 48% 48%;display:flex;align-items:center;justify-content:center;gap:26px;position:relative;box-shadow:inset 0 -8px 20px #e9e3ff}.eye{width:12px;height:16px;background:#3a2e63;border-radius:50%}.smile{position:absolute;width:42px;height:22px;border-bottom:6px solid #ff7f6e;border-radius:0 0 50% 50%;bottom:25px}.orb-ring{position:absolute;border:2px solid rgba(255,255,255,.33);border-radius:50%;inset:-16px}.r2{inset:-32px;opacity:.45}
.continue-card{margin-top:18px;background:#fff;border:1px solid var(--line);border-radius:22px;padding:15px;display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:13px;box-shadow:0 8px 22px rgba(47,30,98,.05)}.continue-icon{width:48px;height:48px;border-radius:15px;background:#efeaff;display:grid;place-items:center;font-size:23px}.continue-card div:nth-child(2){display:flex;flex-direction:column}.continue-card small{font-size:9px;color:var(--violet);font-weight:900;letter-spacing:.1em}.continue-card b{font-size:15px;margin:2px 0}.continue-card span{font-size:12px;color:var(--muted)}.circle-btn{border:0;width:38px;height:38px;border-radius:50%;background:var(--violet);color:#fff;font-size:25px}
.section-head{margin:32px 0 13px;display:flex;align-items:end;justify-content:space-between;gap:12px}.section-head h2{margin:4px 0 0;font-size:24px}.section-head.compact{margin:0 0 12px;align-items:center}.section-head.compact h3{margin:0}.text-btn{border:0;background:transparent;color:var(--violet);font-weight:900}
.action-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.action-card{min-height:165px;border:0;border-radius:24px;padding:20px;text-align:left;display:flex;flex-direction:column;align-items:flex-start;color:#fff;box-shadow:var(--shadow);transition:.2s}.action-card:hover{transform:translateY(-3px)}.action-card span{font-size:34px}.action-card b{font-size:18px;margin:12px 0 4px}.action-card small{font-size:12px;line-height:1.35;color:rgba(255,255,255,.88)}.violet{background:linear-gradient(145deg,#6d4aff,#8c6fff)}.coral{background:linear-gradient(145deg,#ff6f61,#ff8d78)}.cyan{background:linear-gradient(145deg,#18a9c2,#54c9d9)}.green{background:linear-gradient(145deg,#2ea76c,#52c98b)}.amber{background:linear-gradient(145deg,#ed9717,#f7b649)}.blue{background:linear-gradient(145deg,#377be9,#62a0ff)}
.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:18px}.stats-row>div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:14px;text-align:center;display:grid;grid-template-columns:auto auto;justify-content:center;column-gap:8px;align-items:center}.stats-row span{font-size:21px}.stats-row b{font-size:21px}.stats-row small{grid-column:1/-1;color:var(--muted);font-size:11px}.stats-row.large>div{padding:20px}.subject-strip{display:flex;gap:10px;overflow-x:auto;padding:2px 2px 8px;scrollbar-width:none}.subject-pill{flex:0 0 auto;border:1px solid var(--line);background:#fff;border-radius:18px;padding:13px 16px;font-weight:800;color:var(--ink)}
.page-heading{display:flex;gap:12px;align-items:flex-start;margin:6px 0 22px}.page-heading h2{margin:4px 0;font-size:clamp(25px,4vw,36px)}.page-heading p{margin:0;color:var(--muted);max-width:780px}.back{width:42px;height:42px;border:0;background:#fff;border-radius:13px;font-size:30px;line-height:1;color:var(--violet);box-shadow:0 5px 14px rgba(47,30,98,.07);flex:0 0 auto}
.conversation{min-height:310px;max-height:52vh;overflow:auto;background:#fff;border:1px solid var(--line);border-radius:25px;padding:18px;display:flex;flex-direction:column;gap:13px}.bubble{max-width:82%;padding:13px 15px;border-radius:19px;line-height:1.5;font-size:14px;white-space:pre-wrap}.bubble.user{align-self:flex-end;background:var(--violet);color:#fff;border-bottom-right-radius:5px}.bubble.assistant{align-self:flex-start;background:#f1edff;border-bottom-left-radius:5px}.bubble.assistant .bubble-tools{margin-top:9px;display:flex;gap:6px}.bubble-tool{border:0;background:#fff;color:var(--violet);border-radius:10px;padding:6px 9px;font-size:11px;font-weight:800}.typing{display:inline-flex;gap:4px}.typing i{width:6px;height:6px;background:#8a7da8;border-radius:50%;animation:bounce 1s infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}@keyframes bounce{50%{transform:translateY(-5px)}}
.composer-card,.card-panel{margin-top:14px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:18px;box-shadow:0 8px 25px rgba(47,30,98,.05)}label{display:block;font-size:12px;font-weight:900;color:#504a5e;margin:0 0 6px}.subject-line{display:grid;grid-template-columns:auto minmax(0,1fr);gap:10px;align-items:center;margin-bottom:10px}.subject-line label{margin:0}input,textarea,select{width:100%;border:1.5px solid #e5e0f0;background:#fbfaff;border-radius:14px;padding:12px 13px;color:var(--ink)}textarea{resize:vertical;line-height:1.45}.composer-actions{display:flex;gap:10px;margin-top:10px}.mic-btn{background:#fff0ee;color:#de574a}.mic-btn.listening{background:#ff6f61;color:#fff;animation:pulse 1.4s infinite}.send-btn{flex:1;background:var(--violet);color:#fff}.status-text{display:block;color:var(--muted);margin-top:8px;font-size:11px}@keyframes pulse{50%{box-shadow:0 0 0 10px rgba(255,111,97,.14)}}
.scan-stage{background:#fff;border:2px dashed #d9d0ef;border-radius:28px;padding:36px 18px;text-align:center}.scan-illustration{width:120px;height:120px;margin:0 auto 15px;background:#efeaff;border-radius:30px;display:grid;place-items:center;font-size:58px;position:relative;overflow:hidden}.scan-line{position:absolute;height:3px;left:10px;right:10px;background:#62d3c5;box-shadow:0 0 12px #62d3c5;animation:scan 2.3s infinite}@keyframes scan{0%{top:18px}50%{top:98px}100%{top:18px}}.scan-stage h3{margin:0}.scan-stage p{color:var(--muted);max-width:500px;margin:6px auto 16px}.scan-buttons{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}.file-label{display:inline-block;cursor:pointer}.photo-preview-card{margin-top:15px;background:#fff;border:1px solid var(--line);border-radius:24px;padding:15px}.photo-preview-card img{width:100%;max-height:390px;object-fit:contain;border-radius:18px;background:#eee}.photo-actions{display:flex;gap:7px;overflow:auto;padding:11px 0}.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 11px;white-space:nowrap;font-weight:800;font-size:11px}.chip.active{background:#eee9ff;color:var(--violet);border-color:#cfc0ff}.answer-card{margin-top:15px;background:#fff;border-left:5px solid var(--violet);border-radius:20px;padding:18px;box-shadow:var(--shadow);line-height:1.55;white-space:pre-wrap}.answer-card h3{margin-top:0}.hidden{display:none!important}
.reading-layout{display:grid;grid-template-columns:1.5fr .8fr;gap:14px}.reading-layout .card-panel{margin-top:0}.button-wrap{display:flex;gap:8px;flex-wrap:wrap;margin-top:10px}.divider{display:flex;align-items:center;gap:10px;color:#999;margin:13px 0}.divider:before,.divider:after{content:"";height:1px;background:var(--line);flex:1}.coach-panel{text-align:center}.coach-avatar{width:82px;height:82px;border-radius:50%;display:grid;place-items:center;font-size:40px;background:#eafaf2;margin:0 auto}.coach-panel h3{margin:8px 0 2px}.coach-panel p{margin:0 0 12px;color:var(--muted)}.stack-buttons{display:grid;gap:8px}.coach-action{border:0;border-radius:15px;padding:12px;text-align:left;background:#f7f5ff;font-weight:900;color:var(--ink)}.reading-photo{width:100%;max-height:260px;object-fit:contain;border-radius:15px;margin-top:10px}
.class-hero,.revision-banner{background:linear-gradient(120deg,#fff6da,#fffbeb);border:1px solid #f7e6ab;border-radius:22px;padding:16px;display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}.class-hero>div,.revision-banner{display:flex;align-items:center;gap:12px}.class-hero span:first-child,.revision-banner>span{font-size:32px}.class-hero p,.revision-banner p{margin:2px 0 0;color:#806d37;font-size:12px}.pill{background:#fff;border:1px solid #f4dea0;border-radius:999px;padding:7px 10px;font-size:10px;font-weight:900;color:#9a7712}.subject-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.subject-card{border:1px solid var(--line);background:#fff;border-radius:18px;padding:15px;text-align:left;min-height:92px;display:flex;flex-direction:column;justify-content:space-between}.subject-card span{font-size:25px}.subject-card b{font-size:13px}.subject-card.selected{border-color:var(--violet);background:#f0ebff;box-shadow:0 0 0 2px #d7ccff inset}.lesson-builder{max-width:760px}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:12px}.two-col label{margin-top:0}.card-panel>label:not(:first-child){margin-top:12px}
.teacher-room{display:grid;grid-template-columns:.65fr 1.35fr;gap:14px}.teacher-stage{min-height:390px;border-radius:28px;background:linear-gradient(160deg,#6041e8,#8e72ff);display:flex;flex-direction:column;align-items:center;justify-content:center;color:#fff;padding:20px;position:relative;overflow:hidden}.teacher-stage:before{content:"";position:absolute;inset:auto -60px -110px;width:300px;height:300px;background:rgba(255,255,255,.09);border-radius:50%}.teacher-avatar{position:relative;width:190px;height:230px;display:flex;flex-direction:column;align-items:center;justify-content:center}.teacher-head{width:125px;height:125px;border-radius:50%;background:#ffe2ba;display:grid;place-items:center;font-size:68px;border:8px solid #fff;z-index:2}.teacher-body{width:170px;height:95px;border-radius:50% 50% 15px 15px;background:#fff;color:var(--violet);display:grid;place-items:center;font-size:27px;font-weight:900;margin-top:-7px;z-index:1}.teacher-avatar.speaking .teacher-head{animation:nod .7s infinite alternate}.sound-wave{position:absolute;border:3px solid rgba(255,255,255,.75);border-left-color:transparent;border-bottom-color:transparent;border-radius:50%;width:45px;height:45px;right:-8px;top:74px;transform:rotate(45deg);opacity:0}.teacher-avatar.speaking .sound-wave{animation:wave 1.2s infinite}.teacher-avatar.speaking .w2{width:60px;height:60px;right:-16px;top:66px;animation-delay:.2s}.teacher-avatar.speaking .w3{width:75px;height:75px;right:-24px;top:58px;animation-delay:.4s}@keyframes wave{50%{opacity:1}100%{opacity:0}}@keyframes nod{to{transform:translateY(4px)}}.teacher-caption{background:rgba(29,24,48,.35);border-radius:14px;padding:10px 12px;max-width:340px;text-align:center;font-size:12px;z-index:2}.whiteboard{background:#fff;border:1px solid var(--line);border-radius:28px;padding:22px;min-height:390px;display:flex;flex-direction:column;box-shadow:var(--shadow)}.board-top{display:flex;justify-content:space-between;color:var(--violet);font-size:11px;font-weight:900;text-transform:uppercase;letter-spacing:.08em}.whiteboard h3{font-size:30px;margin:36px 0 10px}.whiteboard p{font-size:17px;line-height:1.55}.board-example{margin-top:auto;background:#f6f2ff;border-radius:17px;padding:13px;line-height:1.4}.board-controls{display:flex;gap:8px;margin-top:14px}.board-controls button{border:0;background:#eee9ff;color:var(--violet);border-radius:12px;padding:9px 13px;font-weight:900}.board-controls button:nth-child(2){flex:1}.teacher-controls{max-width:800px}
.revision-banner{background:linear-gradient(120deg,#e9f8ff,#f0fbff);border-color:#bfeaf4}.progress-hero{background:linear-gradient(120deg,#38276e,#6d4aff);color:#fff;border-radius:28px;padding:24px;display:flex;align-items:center;gap:20px}.progress-ring{width:98px;height:98px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(#ffd65b var(--progress,0%),rgba(255,255,255,.15) 0);position:relative}.progress-ring:after{content:"";position:absolute;inset:10px;background:#563cc1;border-radius:50%}.progress-ring span{z-index:2;font-weight:900;font-size:20px}.progress-hero h3{margin:0}.progress-hero p{margin:5px 0 0;color:#e8e2ff}.activity-list{display:grid;gap:9px}.activity-item{display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;padding:11px;background:#faf9ff;border-radius:14px}.activity-icon{width:40px;height:40px;border-radius:12px;background:#eee9ff;display:grid;place-items:center}.activity-item b{display:block;font-size:13px}.activity-item small{color:var(--muted);font-size:10px}.activity-item time{font-size:9px;color:#9b95a9}.empty-state{color:var(--muted);text-align:center;padding:24px}
.parent-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.parent-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px;display:flex;flex-direction:column;align-items:flex-start}.parent-card span{font-size:30px}.parent-card b{font-size:20px;margin:8px 0 2px}.parent-card small{color:var(--muted)}.selectable-subjects{display:flex;flex-wrap:wrap;gap:8px}.subject-select{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 12px;font-size:11px;font-weight:800}.subject-select.selected{background:var(--violet);color:#fff;border-color:var(--violet)}.parent-link{width:100%;margin-top:13px;border:0;background:#fff;border-radius:18px;padding:15px;text-align:left;display:flex;justify-content:space-between;font-weight:900;color:var(--ink)}
.bottom-nav{position:fixed;z-index:50;left:50%;transform:translateX(-50%);bottom:10px;width:min(610px,calc(100% - 20px));height:70px;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:23px;display:grid;grid-template-columns:repeat(5,1fr);padding:6px;box-shadow:0 14px 40px rgba(47,30,98,.16)}.bottom-nav button{border:0;background:transparent;border-radius:16px;color:#807a8f;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px}.bottom-nav button span{font-size:20px}.bottom-nav button small{font-size:9px;font-weight:900}.bottom-nav button.active{background:#eee9ff;color:var(--violet)}.bottom-nav .scan-nav{background:var(--violet);color:#fff;margin-top:-18px;height:64px;box-shadow:0 10px 25px rgba(109,74,255,.3)}
.setup-overlay{position:fixed;z-index:100;inset:0;background:rgba(22,14,49,.72);display:grid;place-items:center;padding:16px}.setup-card{width:min(480px,100%);background:#fff;border-radius:30px;padding:26px;box-shadow:0 30px 80px rgba(0,0,0,.25)}.setup-logo{width:64px;height:64px;border-radius:20px;background:linear-gradient(135deg,var(--violet),#9c72ff);color:#fff;font-weight:900;font-size:21px;display:grid;place-items:center;margin-bottom:15px}.setup-card h2{font-size:28px;margin:5px 0}.setup-card p{color:var(--muted);margin-top:0}.setup-card label{margin-top:13px}.toast{position:fixed;z-index:120;left:50%;transform:translateX(-50%) translateY(130px);bottom:95px;background:#211a38;color:#fff;padding:11px 15px;border-radius:999px;font-size:12px;font-weight:800;transition:.25s;opacity:0;pointer-events:none}.toast.show{transform:translateX(-50%) translateY(0);opacity:1}
@media(max-width:850px){.action-grid{grid-template-columns:repeat(2,1fr)}.subject-grid{grid-template-columns:repeat(3,1fr)}.reading-layout,.teacher-room{grid-template-columns:1fr}.teacher-stage{min-height:320px}.brand-copy small{display:none}}
@media(max-width:560px){main{padding-top:16px}.topbar{height:68px}.brand-mark{width:42px;height:42px;border-radius:14px}.brand-copy b{font-size:12px}.profile-chip b{max-width:90px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.hero-card{border-radius:25px;padding:24px 20px}.teacher-orb{width:105px;height:105px;position:absolute;right:-24px;bottom:-24px;opacity:.45}.orb-face{width:72px;height:72px}.eye{width:7px;height:10px}.smile{width:26px;height:14px;border-bottom-width:4px;bottom:13px}.hero-copy{padding-right:10px}.hero-card p{max-width:88%}.action-grid{gap:10px}.action-card{min-height:145px;padding:16px}.action-card b{font-size:15px}.action-card small{font-size:11px}.action-card span{font-size:30px}.stats-row{gap:8px}.stats-row>div{padding:10px 6px}.section-head{margin-top:25px}.page-heading h2{font-size:25px}.subject-grid{grid-template-columns:repeat(2,1fr)}.two-col{grid-template-columns:1fr}.composer-actions{flex-direction:column}.scan-buttons{flex-direction:column;align-items:stretch}.scan-buttons label{width:100%}.whiteboard h3{font-size:24px;margin-top:28px}.whiteboard p{font-size:15px}.parent-grid{grid-template-columns:1fr}.bottom-nav{bottom:6px;width:calc(100% - 12px)}.bottom-nav button small{font-size:8px}.profile-chip{padding-right:7px}.progress-hero{align-items:flex-start}.brand-copy{max-width:150px}.brand-copy b{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}

/* ===== PLC AGE-ADAPTIVE DASHBOARDS ===== */
.senior-command{display:none}
body[data-band="junior"] .hero-card{background:linear-gradient(125deg,#6d4aff,#8b6cff 55%,#ff8f82)}
body[data-band="junior"] .action-card{border:3px solid rgba(255,255,255,.55)}
body[data-band="junior"] .action-card span{filter:drop-shadow(0 5px 10px rgba(0,0,0,.12))}
body[data-band="junior"] .section-head h2{font-weight:900}

body[data-band="senior"]{--ink:#eaf0ff;--muted:#9ca9c8;--bg:#09111f;--card:#111c2f;--line:#25334b;--violet:#7c6cff;--violet2:#9b8cff;background:radial-gradient(circle at 85% 5%,#172752 0,#09111f 32%,#070d18 100%);color:var(--ink)}
body[data-band="senior"] .topbar{background:rgba(9,17,31,.92);border-color:var(--line);backdrop-filter:blur(16px)}
body[data-band="senior"] .brand,body[data-band="senior"] .profile-chip{color:var(--ink)}
body[data-band="senior"] .profile-chip{background:#15223a;border:1px solid var(--line)}
body[data-band="senior"] .profile-chip .avatar-mini{background:#223252}
body[data-band="senior"] .hero-card{background:linear-gradient(125deg,#111d35,#182a4b 58%,#293c72);border:1px solid #33466d;box-shadow:0 24px 70px rgba(0,0,0,.28)}
body[data-band="senior"] .hero-card:before{background:linear-gradient(135deg,rgba(124,108,255,.28),rgba(34,184,207,.12));width:420px;height:420px;right:-140px;top:-210px}
body[data-band="senior"] .teacher-orb{background:rgba(124,108,255,.12);border:1px solid rgba(160,150,255,.25)}
body[data-band="senior"] .hero-card .secondary{background:#162743;border-color:#3a4e75}
body[data-band="senior"] .continue-card,body[data-band="senior"] .stats-row>div,body[data-band="senior"] .subject-pill,body[data-band="senior"] .card-panel,body[data-band="senior"] .conversation,body[data-band="senior"] .whiteboard,body[data-band="senior"] .parent-card,body[data-band="senior"] .subject-card,body[data-band="senior"] .answer-card{background:#111c2f;border-color:var(--line);color:var(--ink);box-shadow:none}
body[data-band="senior"] input,body[data-band="senior"] textarea,body[data-band="senior"] select{background:#0b1527;border-color:#2b3a55;color:var(--ink)}
body[data-band="senior"] .bubble.assistant{background:#192742;color:#edf2ff}
body[data-band="senior"] .bubble-tool,body[data-band="senior"] .ghost{background:#22314c;color:#d9e1ff;border-color:#33435e}
body[data-band="senior"] .action-grid{grid-template-columns:repeat(3,1fr)}
body[data-band="senior"] .action-card{min-height:145px;border:1px solid rgba(255,255,255,.10);box-shadow:0 16px 36px rgba(0,0,0,.18)}
body[data-band="senior"] .violet{background:linear-gradient(145deg,#4c43a9,#6f63d8)} body[data-band="senior"] .coral{background:linear-gradient(145deg,#963e52,#c65767)} body[data-band="senior"] .cyan{background:linear-gradient(145deg,#17677c,#238aa0)} body[data-band="senior"] .green{background:linear-gradient(145deg,#23664f,#328468)} body[data-band="senior"] .amber{background:linear-gradient(145deg,#8d6322,#b9852e)} body[data-band="senior"] .blue{background:linear-gradient(145deg,#28528c,#3971b8)}
body[data-band="senior"] .senior-command{display:grid;grid-template-columns:1.05fr 1.4fr;gap:22px;margin:18px 0 8px;padding:24px;border-radius:26px;background:linear-gradient(120deg,#0f1a2d,#101f38);border:1px solid #273957}
.senior-kicker{font-size:10px;font-weight:900;letter-spacing:.14em;color:#8fa5ff}.senior-command h2{font-size:clamp(23px,3vw,34px);line-height:1.1;margin:7px 0 9px}.senior-command p{margin:0;color:var(--muted);line-height:1.5}.senior-command-actions{display:grid;grid-template-columns:1fr 1fr;gap:9px}.senior-command-actions button{border:1px solid #2b3d5d;background:#14223a;color:#eef3ff;border-radius:17px;padding:13px;text-align:left;display:grid;grid-template-columns:30px 1fr;column-gap:8px;align-items:center}.senior-command-actions button>span{grid-row:1/3;width:27px;height:27px;border-radius:8px;background:#26385a;display:grid;place-items:center;color:#aab8ff;font-size:9px;font-weight:900}.senior-command-actions b{font-size:13px}.senior-command-actions small{font-size:10px;color:#9ca9c8;line-height:1.25}
body[data-band="senior"] .bottom-nav{background:rgba(10,18,32,.95);border-color:#2b3951}body[data-band="senior"] .bottom-nav button{color:#8e9bb6}body[data-band="senior"] .bottom-nav button.active{background:#1e2d48;color:#fff}body[data-band="senior"] .bottom-nav .scan-nav{background:#6f63d8;color:#fff}
body[data-band="senior"] .class-hero,body[data-band="senior"] .revision-banner{background:#14223a;border-color:#2b3d5d;color:#eef3ff}body[data-band="senior"] .class-hero p,body[data-band="senior"] .revision-banner p{color:#a8b4cd}body[data-band="senior"] .pill{background:#22314c;border-color:#35496c;color:#c7d0ff}
@media(max-width:850px){body[data-band="senior"] .senior-command{grid-template-columns:1fr}body[data-band="senior"] .action-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){body[data-band="senior"] .hero-card{padding:25px 20px 28px}body[data-band="senior"] .hero-card h1{font-size:32px}body[data-band="senior"] .senior-command{padding:18px;border-radius:22px}body[data-band="senior"] .senior-command-actions{grid-template-columns:1fr}body[data-band="senior"] .action-card{min-height:132px;border-radius:19px}body[data-band="senior"] .teacher-orb{opacity:.28}}
.learning-next{margin-top:18px;padding-top:15px;border-top:1px solid var(--line)}.learning-next>b{display:block;margin-bottom:10px}.learning-next .button-wrap{display:flex;flex-wrap:wrap;gap:8px}.followup-loading,.followup-answer{margin-top:14px;padding:14px;border-radius:16px;background:#f4f0ff;line-height:1.55}.followup-answer{white-space:pre-wrap}body[data-band="senior"] .followup-loading,body[data-band="senior"] .followup-answer{background:#192742;color:#edf2ff}