:root{--bg:#090b10;--card:#10151d;--card2:#121b27;--line:#253140;--text:#f4f8fc;--muted:#8593a4;--blue:#1687ff;--cyan:#67d8ff;--red:#e53935;--green:#36c7b2;--shadow:0 16px 45px #0006}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 15% -10%,#143458 0,#090b10 36%);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh;padding-bottom:92px}body:before{content:"";position:fixed;inset:0;pointer-events:none;background:linear-gradient(135deg,#1687ff08,transparent 45%,#8b5cf608);z-index:-1}button,input,select,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}header{height:78px;padding:calc(18px + env(safe-area-inset-top)) max(16px,env(safe-area-inset-right)) 12px max(16px,env(safe-area-inset-left));display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--line);position:sticky;top:0;background:#090b10eF;backdrop-filter:blur(18px);z-index:10}.logo{width:42px;height:42px;transform:translateY(7px);border-radius:13px;overflow:hidden;box-shadow:0 8px 24px #1687ff55}.logo img{width:100%;height:100%;display:block}header b{font-size:16px}header small{display:block;color:var(--muted);font-size:11px;margin-top:2px}header #addBtn{margin-left:auto;width:42px;height:42px;border:1px solid var(--line);border-radius:13px;background:#151d27;color:var(--cyan);font-size:25px}.page{width:min(900px,100%);margin:auto;padding:18px}.section-head{margin:2px 2px 18px}.section-head h1{font-size:25px;margin:0 0 4px}.hero,.card,.list{background:linear-gradient(145deg,#111923,#0f141c);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:20px}.hero{padding:21px}.hero.compact{padding:17px}.eyebrow{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}.title{font-size:clamp(23px,5vw,34px);font-weight:800;margin:5px 0}.muted{color:var(--muted)}.blue{color:var(--cyan)}.block{display:block}.section{display:flex;justify-content:space-between;align-items:center;gap:10px;margin:22px 2px 10px}.section h2{font-size:17px;margin:0}.link{border:0;background:none;color:var(--cyan);padding:7px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-top:12px}.card{padding:15px}.stats .card span{display:block;color:var(--muted);font-size:12px}.stats .card strong{display:block;font-size:29px;margin-top:7px}.list{padding:0 15px}.row{display:flex;align-items:center;gap:10px;padding:13px 0;border-bottom:1px solid var(--line);min-width:0}.row:last-child{border:0}.lesson-row{cursor:pointer}.grow{flex:1;min-width:0}.grow b{overflow-wrap:anywhere}.dot{width:12px;height:12px;border-radius:50%;background:var(--c,var(--cyan));flex:none;box-shadow:0 0 12px var(--c,var(--cyan))55}.num{width:31px;height:31px;border-radius:10px;background:#182535;color:var(--cyan);display:grid;place-items:center;font-weight:700;flex:none}.tabs{display:flex;gap:6px;overflow:auto;padding-bottom:9px;scrollbar-width:none}.tabs::-webkit-scrollbar{display:none}.tabs button{border:1px solid var(--line);background:#111822;color:#aab6c4;border-radius:11px;padding:8px 12px;white-space:nowrap}.tabs button.active{background:var(--blue);border-color:var(--blue);color:#fff}.empty{text-align:center;padding:38px 12px;color:var(--muted)}nav{position:fixed;bottom:0;left:0;right:0;height:78px;background:#0c1016f5;backdrop-filter:blur(18px);border-top:1px solid var(--line);display:flex;z-index:20;padding-bottom:env(safe-area-inset-bottom)}nav button{flex:1;border:0;background:transparent;color:#7d8998;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:20px;gap:3px}nav button span{font-size:9px}nav button.active{color:var(--cyan)}.check{accent-color:var(--blue);width:21px;height:21px;flex:none}.done{text-decoration:line-through;opacity:.55}.badge{font-size:10px;padding:4px 8px;background:#182b3c;color:var(--cyan);border-radius:20px}.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.quick-grid button{border:1px solid var(--line);border-radius:16px;background:var(--card);color:var(--text);padding:15px 8px;min-height:78px;display:flex;flex-direction:column;gap:7px;align-items:center}.quick-grid span{font-size:11px}.icon-btn{border:0;background:transparent;color:#b9c7d6;padding:7px;border-radius:10px}.icon-btn:hover{background:#1a2430}.danger-text{color:#ff9090}.modal-bg{position:fixed;inset:0;background:#000b;z-index:40;display:flex;align-items:flex-end;justify-content:center}.modal{width:min(760px,100%);max-height:92vh;overflow:auto;background:#0e131a;border:1px solid var(--line);border-radius:25px 25px 0 0;padding:20px;padding-bottom:max(25px,env(safe-area-inset-bottom));box-shadow:0 -25px 70px #000b}.modal-head{display:flex;align-items:center;gap:10px;margin-bottom:5px}.modal-head h2{margin:0;font-size:20px;flex:1}.field{margin:11px 0}.field label{display:block;color:var(--muted);font-size:12px;margin-bottom:5px}.field input,.field select,.field textarea{width:100%;background:#111923;border:1px solid #293646;color:var(--text);border-radius:12px;padding:12px}.field input[type=color]{height:48px;padding:4px}.field textarea{min-height:90px;resize:vertical}.form2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.actions{display:flex;gap:9px;margin-top:15px;flex-wrap:wrap}.primary,.secondary,.danger{border:0;border-radius:12px;padding:12px 16px}.primary{background:var(--blue);color:#fff;flex:1}.secondary{background:#1a222d;color:#e8f1fa}.danger{background:#351a1d;color:#ff9a9a}.canvas-wrap{background:#fff;border-radius:16px;overflow:hidden;border:2px solid #283746}.draw-canvas{display:block;width:100%;height:230px;touch-action:none;cursor:crosshair}.toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin:10px 0}.color-btn{width:38px;height:38px;border-radius:11px;border:2px solid #fff}.black{background:#111}.red{background:#e53935}.color-btn.active{outline:3px solid var(--cyan)}.ink-preview{background:#fff;border-radius:10px;padding:5px;flex:none}.ink-preview canvas{width:130px;height:52px;display:block}.menu{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}.menu button{min-height:95px;text-align:left;padding:16px;border:1px solid var(--line);border-radius:17px;background:var(--card);color:var(--text)}.menu i{display:block;font-style:normal;font-size:24px;margin-bottom:8px}.notice{margin-top:14px;padding:13px;border:1px solid #26425b;background:#102033;border-radius:14px;color:#bcdcff;font-size:12px;line-height:1.45}.switch-row{display:flex;gap:10px;align-items:center;padding:12px 0;color:#dce6ef}.switch-row input{width:20px;height:20px;accent-color:var(--blue)}.backpack-block{padding:4px 0 10px}.chips{display:flex;flex-wrap:wrap;gap:7px;padding:7px 0}.chip{background:#182535;border:1px solid #293a4c;color:#dce8f3;border-radius:999px;padding:7px 10px;font-size:12px}.chip button{border:0;background:none;color:#ff9a9a;padding:0 0 0 5px}.task-row .grow{padding-right:4px}#toast{position:fixed;z-index:60;bottom:96px;left:50%;max-width:min(90vw,480px);transform:translate(-50%,20px);opacity:0;background:#eef8ff;color:#071018;border-radius:99px;padding:10px 16px;transition:.2s;pointer-events:none;text-align:center;box-shadow:0 8px 30px #0008}#toast.show{opacity:1;transform:translate(-50%,0)}@media(min-width:900px){nav{left:50%;transform:translateX(-50%);width:650px;border:1px solid var(--line);border-bottom:0;border-radius:22px 22px 0 0}.page{padding-top:26px}}@media(max-width:600px){.quick-grid{grid-template-columns:repeat(2,1fr)}.grade-row{flex-wrap:wrap}.grade-row .grow{min-width:calc(100% - 30px)}.ink-preview{margin-left:auto}.ink-preview canvas{width:110px;height:46px}}@media(max-width:420px){.form2{grid-template-columns:1fr}.page{padding:14px}.modal{padding:16px}.hero{padding:17px}.section-head h1{font-size:22px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* v1.3 additions */
.grade-number{display:inline-grid;place-items:center;min-width:30px;height:30px;padding:0 7px;border-radius:10px;background:var(--blue);color:#fff;font-size:15px}
.grade-list{display:grid;gap:12px}.grade-subject{padding:14px}.subject-title{display:flex;align-items:center;gap:10px}.grade-pills{display:flex;flex-wrap:wrap;gap:8px;margin-top:13px}.grade-pill{min-width:58px;border:1px solid var(--line);border-radius:12px;background:#151e29;color:var(--text);padding:7px 9px;display:flex;flex-direction:column;align-items:center}.grade-pill strong{font-size:20px}.grade-pill small{font-size:9px;color:var(--muted);margin-top:2px;max-width:80px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.override-row{display:flex;align-items:center;gap:8px;padding:10px 0;border-bottom:1px solid var(--line)}.override-row:last-child{border-bottom:0}.override-row select,.room-inline{width:100%;background:#111923;border:1px solid #293646;color:var(--text);border-radius:10px;padding:9px}.override-row .num{flex:none}.room-inline{margin-top:6px}.card .link{padding-left:0;padding-right:0}

/* v1.4 weekly homework + document notes */
.week-nav{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:10px 0 16px;padding:12px 14px;border:1px solid var(--line);border-radius:17px;background:var(--card)}
.week-nav>div{flex:1;text-align:center}.week-nav small{font-size:11px}.week-nav .secondary{min-width:44px}.week-day{margin:16px 0}.week-day-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:0 4px 8px}.week-day-head b{font-size:16px}.week-day-head span{font-size:11px}.small-empty{padding:16px}.editor-toolbar{display:flex;gap:6px;flex-wrap:wrap;margin:10px 0;padding:9px;border:1px solid var(--line);border-radius:14px;background:#111923;position:sticky;top:0;z-index:2}.editor-toolbar button{border:1px solid #293646;background:#182331;color:#e7f2fb;border-radius:9px;padding:8px 10px;font-size:12px}.editor-toolbar button:hover{border-color:var(--cyan)}.note-editor{min-height:330px;background:#fff;color:#15191e;border-radius:16px;padding:18px;line-height:1.6;outline:none;box-shadow:inset 0 0 0 2px #dce5ed}.note-editor:focus{box-shadow:inset 0 0 0 2px var(--cyan)}.note-editor h2{font-size:23px;margin:12px 0 8px}.note-editor ul,.note-editor ol{padding-left:25px}.note-editor blockquote{margin:12px 0;padding:10px 14px;border-left:4px solid #1687ff;background:#eef6ff;color:#3c4b5a}.note-editor hr{border:0;border-top:2px solid #d8e1e8;margin:18px 0}.note-editor .check-item{padding:5px 0}.note-editor pre,.note-editor .diagram{background:#eef2f6;border:1px dashed #aab8c5;border-radius:10px;padding:12px;white-space:pre-wrap;font-family:ui-monospace,SFMono-Regular,Consolas,monospace}.note-preview{overflow-wrap:anywhere}.local-alert{position:fixed;z-index:55;top:88px;left:50%;transform:translateX(-50%);width:min(92vw,520px);background:#111923;border:1px solid var(--cyan);border-radius:16px;padding:13px 15px;box-shadow:0 15px 45px #000b;display:none}.local-alert.show{display:block}.local-alert b{display:block;margin-bottom:4px}.local-alert small{color:var(--muted)}
@media(max-width:600px){.editor-toolbar{position:static}.note-editor{min-height:280px}}