:root{--navy:#0a2858;--navy-dark:#071c41;--blue:#1460ed;--blue-deep:#0d4fc7;--red:#ed2145;--ink:#182b4e;--muted:#75839d;--line:#e2e8f3;--bg:#f4f7fc;--white:#fff;--soft:#eef4ff;--green:#1f9a73;--radius:17px;--shadow:0 8px 30px rgba(15,48,108,.045)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;font-size:14px;line-height:1.5}button,input,textarea,select{font:inherit}button{cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #86b6ff;outline-offset:3px}a{color:var(--blue)}.icon{display:inline-flex;vertical-align:middle;flex:none}.icon svg{display:block}.app-shell{display:grid;grid-template-columns:250px minmax(0,1fr);min-height:100vh}.sidebar{height:100vh;position:sticky;top:0;display:flex;flex-direction:column;background:linear-gradient(153deg,#0e326c 0%,var(--navy-dark) 70%);color:white;padding:26px 16px;z-index:30;overflow-y:auto}.brand{display:flex;gap:12px;align-items:center;padding:4px 10px 17px}.brand-logo{background:var(--red);border-radius:13px;width:49px;height:49px;display:grid;place-items:center;box-shadow:0 10px 20px #ed214533}.brand-type{line-height:1;display:flex;flex-direction:column;gap:4px}.brand-type strong{font-size:23px;font-weight:900;letter-spacing:.5px}.brand-type span{font-size:12px;font-weight:900;letter-spacing:2px;color:#ff637b}.brand-description{padding:16px 11px 24px;border-top:1px solid #ffffff21;color:#cbd9f1;font-size:10px;line-height:1.8;letter-spacing:.7px;font-weight:700}.brand-description span{font-weight:400;letter-spacing:0;font-size:12px;color:#94add5}.nav-caption{font-size:10px;font-weight:800;letter-spacing:1.4px;padding:3px 14px 11px;color:#7293c5}.nav-main,#bottomNav{display:flex;flex-direction:column;gap:3px}.nav-link{width:100%;display:flex;align-items:center;gap:13px;border:0;padding:11px 13px;border-radius:10px;background:transparent;text-align:left;color:#d8e3f6;font-weight:650;font-size:13px;transition:background .15s}.nav-link:hover{background:#ffffff14}.nav-link.active{background:linear-gradient(96deg,#1b68f2,#0d4cd4);color:#fff;box-shadow:0 4px 17px #03132c88}.nav-link .chevron{margin-left:auto;opacity:.65}.sidebar-bottom{margin-top:auto;padding-top:26px}.device-status{padding:14px 13px;border-radius:13px;background:#ffffff0b;border:1px solid #ffffff15;display:flex;align-items:center;gap:10px;margin:0 2px 18px}.online-dot{height:9px;width:9px;border-radius:50%;background:#50d0a1;box-shadow:0 0 0 4px #50d0a11a}.device-status strong{display:block;font-size:12px}.device-status small{display:block;color:#b5c5e1;font-size:10px;margin-top:2px}.topbar{height:80px;background:white;border-bottom:1px solid var(--line);padding:0 34px;display:flex;align-items:center;gap:19px;position:sticky;top:0;z-index:20}.topbar-title{font-weight:900;white-space:nowrap;font-size:18px;line-height:1.15;letter-spacing:-.5px}.topbar-title span{color:var(--red)}.topbar-title small{display:block;color:var(--muted);font-weight:500;font-size:11px;letter-spacing:0;margin-top:4px}.search-form{display:flex;align-items:center;gap:10px;margin-left:auto;max-width:480px;min-width:120px;flex:1;border:1px solid var(--line);background:#f7f9fd;border-radius:11px;padding:0 13px;height:42px;color:#93a0b6}.search-form input{background:transparent;border:0;width:100%;min-width:0;outline:0;color:var(--ink);font-size:12px}.search-form input:focus{outline:none}.quick-add{white-space:nowrap;display:flex;align-items:center;gap:8px;background:var(--red);color:white;border:0;border-radius:10px;padding:11px 15px;font-weight:750;box-shadow:0 6px 15px #ed214525}.quick-add:hover,.btn-red:hover{background:#d70a30}.avatar{border:0;background:#edf2fb;color:var(--navy);width:40px;height:40px;border-radius:50%;font-weight:900}.mobile-menu{display:none}.view{max-width:1500px;margin:0 auto;padding:33px 35px 60px}.page-heading{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:25px}.eyebrow{color:var(--blue);text-transform:uppercase;letter-spacing:1.3px;font-size:11px;font-weight:850}.page-heading h1{font-size:27px;line-height:1.15;letter-spacing:-.8px;margin:8px 0}.subtitle{color:var(--muted);margin:0;font-size:13px}.actions{display:flex;align-items:center;gap:9px;flex-wrap:wrap}.btn{border:1px solid transparent;border-radius:10px;padding:10px 16px;display:inline-flex;align-items:center;justify-content:center;gap:7px;font-size:12px;font-weight:800;line-height:1.25;white-space:nowrap;background:var(--soft);color:var(--navy)}.btn:hover{filter:brightness(.976)}.btn-primary{background:var(--blue);color:#fff}.btn-red{background:var(--red);color:#fff}.btn-outline{background:white;color:var(--ink);border-color:var(--line)}.btn-soft{background:#edf4ff;color:var(--blue)}.btn-danger{background:#fff0f3;color:#d61c3c}.btn:disabled{filter:none}.btn-sm{padding:7px 11px;font-size:11px}.btn-icon{padding:8px}.muted{color:var(--muted)}.tiny{font-size:11px}.small{font-size:12px}.center{text-align:center}.right{text-align:right}.stack{display:flex;flex-direction:column;gap:13px}.flex{display:flex;align-items:center;gap:12px}.flex-wrap{flex-wrap:wrap}.between{display:flex;align-items:center;justify-content:space-between;gap:12px}.grid{display:grid;gap:17px}.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}.panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;min-width:0}.panel h2,.panel h3{margin:0;font-size:16px;letter-spacing:-.3px}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:16px}.section-title{display:flex;align-items:center;justify-content:space-between;margin:25px 0 15px;gap:15px}.section-title h2{font-size:18px;letter-spacing:-.4px;margin:0}.link-btn{border:0;background:transparent;color:var(--blue);font-weight:800;font-size:12px;cursor:pointer;padding:2px}.link-btn:hover{text-decoration:underline}.summary-card{background:white;border-radius:16px;border:1px solid var(--line);padding:20px 22px;min-height:127px;display:flex;flex-direction:column;justify-content:space-between;gap:13px;box-shadow:var(--shadow)}.summary-card .number{font-size:28px;line-height:1;font-weight:900;color:var(--navy)}.summary-icon{display:grid;place-items:center;width:36px;height:36px;border-radius:10px;background:#ebf2ff;color:var(--blue)}.summary-icon.red{background:#fff0f2;color:var(--red)}.summary-icon.green{background:#e7f8f1;color:var(--green)}.hero{display:flex;position:relative;min-height:221px;background:linear-gradient(111deg,#0b3d99 0%,#145de4 68%,#286dff 100%);overflow:hidden;color:white;border-radius:19px;padding:29px 31px;align-items:center}.hero::after{content:"";position:absolute;width:360px;height:360px;border:53px solid #ffffff13;border-radius:50%;right:-72px;top:-129px}.hero::before{content:"";position:absolute;width:180px;height:180px;background:#ffffff0c;right:130px;bottom:-103px;transform:rotate(45deg);border-radius:35px}.hero-copy{position:relative;z-index:1}.hero-label{font-size:10px;letter-spacing:1.8px;font-weight:900;color:#cde0ff}.hero h2{font-size:27px;line-height:1.2;letter-spacing:-.7px;max-width:510px;margin:10px 0}.hero p{font-size:13px;color:#d2e2ff;margin:0 0 18px}.hero .btn{background:var(--red);color:white}.hero-icon{margin-left:auto;min-width:125px;color:#ffffff2c;transform:rotate(-12deg);position:relative;z-index:1}.subject-card{text-align:left;display:flex;flex-direction:column;gap:8px;align-items:flex-start;min-height:165px;background:white;border:1px solid var(--line);border-radius:16px;padding:17px;position:relative;overflow:hidden;box-shadow:var(--shadow)}.subject-card::after{content:"";height:4px;background:var(--subject-color);position:absolute;bottom:0;left:0;right:0}.subject-card:hover{transform:translateY(-1px);box-shadow:0 12px 28px #15346c14}.subject-card strong{font-size:14px}.subject-card small{color:var(--muted);font-size:11px}.subject-icon{display:grid;place-items:center;width:47px;height:47px;border-radius:12px;background:var(--subject-bg);color:var(--subject-color);font-size:23px}.subject-card .arrow{color:#99a8bb;position:absolute;top:17px;right:18px;font-size:23px}.list{display:flex;flex-direction:column}.list-item{min-height:67px;display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.list-item:last-child{border-bottom:0}.item-icon{display:grid;place-items:center;min-width:41px;height:41px;background:#ecf3ff;color:var(--blue);border-radius:11px}.list-item .item-main{min-width:0;flex:1}.list-item strong{font-size:12px;display:block;word-break:break-word}.list-item small{color:var(--muted);display:block;font-size:11px;margin-top:3px;line-height:1.4}.item-action{border:0;background:transparent;color:#8aa0be;padding:8px;font-size:21px}.empty{border:1px dashed #d8e2f1;background:#fbfcff;border-radius:13px;padding:27px 16px;text-align:center;color:#72829f}.empty strong{display:block;color:var(--ink);font-size:13px;margin-bottom:4px}.empty p{margin:0 0 14px;font-size:12px}.chip{display:inline-flex;align-items:center;gap:5px;padding:5px 9px;border-radius:99px;font-size:10px;font-weight:800;background:#edf3fc;color:#49719f}.chip.red{background:#fff0f2;color:#d92647}.chip.green{background:#e9f8f2;color:#178f6f}.chip.blue{background:#eaf2ff;color:#155ce0}.chip.yellow{background:#fff7e6;color:#a66a03}.task-line{display:flex;gap:11px;align-items:flex-start;padding:13px 0;border-bottom:1px solid var(--line)}.task-line:last-child{border-bottom:0}.task-line input{accent-color:var(--blue);width:16px;height:16px;margin:2px 0 0;flex:none}.task-line .task-copy{flex:1;min-width:0}.task-line strong{display:block;font-size:12px}.task-line.done strong{text-decoration:line-through;color:#a0acbd}.task-line .task-desc{font-size:11px;color:var(--muted);margin-top:4px}.task-line button{border:0;background:transparent;color:#a1aec1}.note-workspace{display:grid;grid-template-columns:275px minmax(0,1fr);gap:18px;align-items:stretch}.note-list-panel{padding:12px;max-height:720px;overflow-y:auto}.note-row{display:block;text-align:left;width:100%;border:1px solid transparent;background:transparent;border-radius:11px;padding:13px;cursor:pointer;color:var(--ink)}.note-row:hover{background:#f6f9ff}.note-row.active{background:#eaf2ff;border-color:#cddfff}.note-row strong{display:block;font-size:12px;line-height:1.3;margin-bottom:7px}.note-row small{display:block;font-size:10px;color:var(--muted)}.note-editor{min-height:520px}.note-editor .field{margin-bottom:15px}.field label{display:block;color:#60728d;font-weight:800;font-size:11px;margin-bottom:7px}.control{width:100%;min-width:0;background:#fff;border:1px solid #dce5f2;border-radius:10px;padding:11px 12px;outline:none;color:var(--ink)}.control:focus{border-color:#84aafa;box-shadow:0 0 0 3px #a6c5ff33}.note-title-input{font-size:20px;font-weight:800;letter-spacing:-.4px}.note-textarea{min-height:295px;resize:vertical;line-height:1.72;font-size:14px}.hint{font-size:11px;color:var(--muted)}.toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.save-state{font-size:11px;color:var(--green);font-weight:700}.subject-hero{display:flex;align-items:center;gap:14px;background:white;border:1px solid var(--line);border-radius:17px;padding:23px;margin-bottom:18px}.subject-hero h1{margin:0;font-size:24px}.subject-hero .subject-icon{width:60px;height:60px;font-size:29px}.calendar-layout{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(270px,.8fr);gap:18px}.calendar-head{display:flex;justify-content:space-between;align-items:center;gap:10px;margin-bottom:18px}.calendar-head h2{font-size:21px}.calendar-grid{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:6px}.week-name{font-size:11px;color:#8593a9;font-weight:850;text-align:center;padding:8px}.calendar-cell{border:1px solid #e6ebf4;border-radius:9px;min-height:78px;background:white;text-align:left;position:relative;color:var(--ink);padding:9px;font-size:12px}.calendar-cell:hover{border-color:#91b7f4}.calendar-cell.muted-cell{background:#f9fafc;color:#b1bbc9}.calendar-cell.selected{border:2px solid var(--blue);background:#edf4ff;padding:8px}.calendar-cell.today .date-num{background:var(--red);color:white;padding:2px 7px;border-radius:8px}.calendar-cell.has-event::after{content:"";position:absolute;bottom:10px;left:11px;background:var(--blue);height:5px;width:5px;border-radius:50%;box-shadow:9px 0 0 #ee4160}.calendar-cell .date-num{font-weight:800}.table-wrap{overflow-x:auto}.data-table{width:100%;border-collapse:collapse;min-width:570px}.data-table th{text-align:left;color:#7b8ca4;font-size:11px;padding:12px;border-bottom:1px solid var(--line)}.data-table td{padding:13px 12px;border-bottom:1px solid #edf1f7;vertical-align:middle;font-size:12px}.data-table tr:last-child td{border-bottom:0}.data-table .filename{font-weight:800;max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.data-table .action-row{display:flex;gap:6px;flex-wrap:wrap}.filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:18px}.filters select,.filters input{max-width:260px}.quiz-opt{display:block;width:100%;border:1px solid var(--line);border-radius:12px;padding:14px 16px;background:white;color:var(--ink);text-align:left;margin-bottom:10px;font-size:13px;font-weight:600}.quiz-opt:hover{background:#f6f9ff}.quiz-opt.selected{border-color:var(--blue);background:#eaf2ff;box-shadow:inset 4px 0 var(--blue)}.quiz-question{font-size:21px;font-weight:850;letter-spacing:-.45px;margin:18px 0 20px}.progressbar{height:9px;background:#e9eef7;border-radius:99px;overflow:hidden}.progressbar span{display:block;height:100%;background:var(--blue);border-radius:99px}.notice{background:#eef4ff;border:1px solid #c9dbfb;border-radius:12px;color:#385781;font-size:12px;padding:15px 17px}.notice.warn{background:#fff8ec;border-color:#f3e0bf;color:#865d18}.notice.danger{background:#fff0f3;border-color:#ffd1da;color:#bd2544}.settings-row{padding:15px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:12px}.settings-row:last-child{border-bottom:0}.settings-row strong{display:block;font-size:13px}.settings-row small{display:block;color:var(--muted);margin-top:5px}.login-preview{max-width:510px;margin:10px auto;text-align:center;padding:34px}.login-preview .big-cap{width:75px;height:75px;display:grid;place-items:center;background:#f2f6ff;color:var(--blue);border-radius:20px;margin:0 auto 18px}.login-preview h2{font-size:27px}.login-preview h2 span{color:var(--red)}.login-preview .control{margin-bottom:10px;text-align:left}.hero-mini{border-radius:15px;background:#edf4ff;padding:18px;display:flex;gap:13px;align-items:center}.hero-mini.red{background:#fff1f4}.data-visual{display:flex;align-items:center;gap:14px;margin:12px 0}.data-visual .name{font-size:11px;min-width:100px}.data-visual .progressbar{flex:1}.data-visual .num{font-size:11px;font-weight:850}.app-dialog{border:0;border-radius:19px;max-width:min(530px,calc(100vw - 28px));width:100%;padding:0;color:var(--ink);box-shadow:0 20px 90px #061b395c}.app-dialog::backdrop{background:#071c3a9f;backdrop-filter:blur(2px)}.dialog-content{padding:26px}.dialog-content h2{margin:0 0 6px;font-size:21px}.dialog-content p{color:var(--muted);margin:0 0 19px;font-size:12px}.dialog-fields{display:grid;gap:13px}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;padding-top:20px}.toast{position:fixed;bottom:22px;right:24px;z-index:200;padding:13px 18px;border-radius:11px;background:#102c56;color:white;box-shadow:0 8px 30px #09254e39;font-size:13px;max-width:min(480px,calc(100vw - 40px))}.toast.error{background:#a71838}.menu-overlay{display:none}.divider{border:0;height:1px;background:var(--line);margin:18px 0}ul.bullets{padding-left:20px;margin:10px 0;color:var(--muted);font-size:12px;line-height:1.9}.file-drop{border:1px dashed #b0c7e8;border-radius:14px;background:#f9fbff;padding:24px;text-align:center;margin-bottom:18px}.file-drop.dragging{background:#eaf2ff;border-color:var(--blue)}.kbd{border:1px solid #d5e1f4;background:#f7f9fd;border-radius:4px;padding:1px 5px;font-size:10px}.view-notice{padding:10px 14px;border-radius:12px;background:#f3f7fc;color:#6a7791;font-size:11px}.footer-note{margin-top:26px;font-size:11px;color:var(--muted)}
@media(max-width:1250px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}.view{padding:26px 24px}.topbar{padding:0 24px;gap:12px}.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:980px){.app-shell{grid-template-columns:220px 1fr}.sidebar{padding:20px 10px}.topbar .topbar-title small{display:none}.grid-2{grid-template-columns:1fr}.calendar-layout{grid-template-columns:1fr}.note-workspace{grid-template-columns:230px minmax(0,1fr)}.hero-icon{display:none}}
@media(max-width:759px){.app-shell{display:block}.sidebar{position:fixed;transform:translateX(-110%);transition:transform .2s;width:260px;box-shadow:12px 0 30px #071c4140}.sidebar.open{transform:none}.menu-overlay.open{display:block;position:fixed;inset:0;background:#071c415f;z-index:25}.topbar{height:70px;padding:0 15px}.mobile-menu{display:inline-flex;border:0;background:#f0f4fb;border-radius:9px;padding:9px;color:var(--navy)}.topbar-title{font-size:16px}.topbar-title small{display:none}.search-form{display:none}.quick-add{padding:10px}.quick-add > span:last-child{display:none}.view{padding:23px 15px 50px}.page-heading h1{font-size:24px}.grid-3{grid-template-columns:1fr 1fr}.note-workspace{grid-template-columns:1fr}.note-list-panel{max-height:215px}.hero{padding:25px}.hero h2{font-size:22px}.summary-card{padding:16px}.calendar-cell{min-height:55px;padding:5px;font-size:11px}.calendar-cell.selected{padding:4px}.calendar-cell.today .date-num{padding:1px 4px}}
@media(max-width:480px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}.grid-3>.summary-card:last-child{grid-column:span 2}.subject-card{min-height:140px}.calendar-grid{gap:2px}.calendar-cell{min-height:47px}.panel{padding:16px}.page-heading{align-items:stretch;flex-direction:column}.search-form{display:none}}
@media print{.sidebar,.topbar,.actions,.sidebar-bottom,.btn,.filters,.menu-overlay,.quick-add,.item-action,.footer-note{display:none!important}.app-shell{display:block}.view{padding:0}.panel{box-shadow:none}.note-workspace{display:block}.note-list-panel{display:none}.note-textarea{min-height:650px;border:0;resize:none}.note-editor{border:0}body{background:white}}