@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');
:root{--bg:#f3f6f8;--surface:#fff;--ink:#17323d;--muted:#647883;--line:#e3ebef;--accent:#087f79;--soft:#e8f6f2;--nav:#102c36;--shadow:0 6px 22px #163a4610;color-scheme:light}*{box-sizing:border-box}body{margin:0;font-family:'Be Vietnam Pro',Arial,sans-serif;background:var(--bg);color:var(--ink);font-size:16px;line-height:1.55}body.dark{--bg:#0e2028;--surface:#17313c;--ink:#e4f1f3;--muted:#a6bac2;--line:#2d4651;--accent:#69d7c5;--soft:#234d48;--nav:#091b23;color-scheme:dark}button,input,select{font:inherit}button,a,input,select{ -webkit-tap-highlight-color:transparent}button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);border-radius:9px;background:var(--surface);color:var(--ink);padding:10px 15px;font-size:14px;font-weight:600;min-height:42px;transition:background .16s,box-shadow .16s}button:hover{box-shadow:0 3px 10px #102c3619;border-color:#8badb5}button:disabled{opacity:.55;cursor:wait}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #4cc4b6;outline-offset:3px}a{color:var(--accent)}svg{width:20px;height:20px;flex-shrink:0;vertical-align:middle}.sidebar{width:240px;position:fixed;inset:0 auto 0 0;background:var(--nav);color:#b5c8cf;display:flex;flex-direction:column;padding:30px 18px;z-index:20}.brand{display:flex;align-items:center;gap:11px;color:white;text-decoration:none;font-size:15px;font-weight:800;letter-spacing:.2px;padding:0 3px}.brand small{display:block;font-weight:500;font-size:11px;letter-spacing:2px;margin-top:6px;color:#91b0bb}.brandmark{background:#40c5ae;color:#082d33;border-radius:12px;padding:11px}.brandmark svg{width:24px;height:24px}.nav-label{font-size:11px;letter-spacing:1.5px;color:#73909b;margin:43px 14px 13px}nav{display:flex;flex-direction:column;gap:6px}nav button{justify-content:flex-start;border:0;background:transparent;color:#b9cdd4;padding:13px 15px;font-weight:500}nav button svg{margin-right:5px}nav button.active{background:#24505b;color:#87edda;box-shadow:inset 3px 0 #4fd2b8}nav button:hover{background:#1c434f;color:#fff}.nav-sep{height:1px;background:#2a4651;margin:16px 10px}.side-bottom{margin-top:auto;padding:24px 12px 0;display:flex;flex-direction:column;gap:7px;font-size:12px}.side-bottom strong{color:#e9f3f6;font-size:13px}.school-avatar{color:#68bfba;margin-bottom:4px}.school-avatar svg{width:28px;height:28px}.side-rule{height:1px;background:#2a4651;margin:16px 0 6px}.theme-button{padding:5px 0;border:none;background:transparent;color:#b9cdd4;justify-content:flex-start;font-size:12px}.workspace{margin-left:240px}.topbar{height:78px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 38px;background:var(--surface)}.breadcrumb{font-size:13px;color:var(--muted)}.breadcrumb span{padding:0 15px;color:#b0bec5}.breadcrumb b{font-weight:500;color:var(--ink)}.top-actions{display:flex;gap:17px;align-items:center}.private-tag{font-size:12px;color:var(--muted)}.user-avatar{background:#d8ede7;color:#1e625a;border:3px solid var(--surface);outline:1px solid var(--line);border-radius:50%;width:38px;height:38px;display:grid;place-items:center;font-size:11px;font-weight:800}.icon-button{padding:8px;width:40px;min-height:40px;background:transparent}.topbar .icon-button{border:0}main{max-width:1580px;margin:auto;padding:32px 38px 20px}.page-heading{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-bottom:26px}.eyebrow{font-size:11px;letter-spacing:1.7px;color:var(--accent);font-weight:700;margin-bottom:8px}h1{font-size:29px;font-weight:700;letter-spacing:-1px;margin:0 0 8px}p{color:var(--muted);margin:0;font-size:14px}.primary{background:#087f79;color:#fff;border:1px solid #087f79;box-shadow:0 4px 10px #087f791d}.primary:hover{background:#066b66}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.metric{padding:18px 20px;background:var(--surface);border:1px solid var(--line);border-radius:13px;display:flex;gap:16px;align-items:center}.metric-icon{padding:11px;border-radius:12px;background:var(--soft);color:var(--accent)}.metric:nth-child(2) .metric-icon{background:#edf0fc;color:#6275b7}.metric:nth-child(3) .metric-icon{background:#fff3dd;color:#b48323}.metric:nth-child(4) .metric-icon{background:#e9f1fb;color:#5583b0}.metric strong{font-size:26px;line-height:1.2;display:block;letter-spacing:-.7px}.metric small{font-size:12px;color:var(--muted);display:block;margin-top:5px}.toolbar{display:flex;gap:16px;justify-content:space-between;margin-bottom:24px}.search-box{display:flex;align-items:center;gap:12px;border:1px solid var(--line);background:var(--surface);padding:12px 17px;border-radius:10px;flex:1;max-width:650px;color:var(--muted)}.search-box input{border:0;outline:none;background:transparent;width:100%;min-width:0;font-size:14px;color:var(--ink)}kbd{font-size:12px;background:var(--bg);border:1px solid var(--line);padding:0 6px;border-radius:4px}.edition{display:flex;gap:12px;align-items:center;white-space:nowrap;font-size:13px;color:var(--muted)}select,input[type=date],input[type=text]{background:var(--surface);border:1px solid var(--line);color:var(--ink);padding:10px 12px;border-radius:8px;min-height:42px;font-size:14px;max-width:100%}.split{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:22px}.panel{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}.panel-head{padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);flex-wrap:wrap}h2{font-size:18px;margin:0;font-weight:700;letter-spacing:-.3px}h3{font-size:15px;margin:0 0 10px}.panel-head small{color:var(--muted);display:block;font-size:12px;margin-top:4px}.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.controls{display:flex;align-items:center;gap:10px;padding:18px 22px;flex-wrap:wrap}.controls label{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:9px}.switch{background:var(--bg);padding:4px;border:1px solid var(--line);border-radius:9px;display:inline-flex}.switch button{border:none;background:transparent;min-height:32px;padding:5px 12px;font-size:12px;font-weight:500}.switch button.selected{background:var(--surface);color:var(--accent);box-shadow:0 1px 5px #163a4617}.push{margin-left:auto}.grid-wrap{overflow-x:auto;padding:0 18px 18px}.week-grid{width:100%;table-layout:fixed;border-spacing:6px}.week-grid th{text-align:center;font-size:12px;font-weight:600;padding:8px 0 12px;color:var(--muted)}.week-grid th:first-child{width:40px}.week-grid td{vertical-align:top;height:85px;padding:0}.week-grid .period{text-align:center;vertical-align:middle;height:auto;font-weight:600;font-size:14px;color:var(--muted)}.lesson{border:0;width:100%;height:100%;min-height:82px;text-align:left;display:block;padding:11px 10px;border-radius:8px;font-size:12px;font-weight:400;background:var(--lesson-bg,#ecf3fb);color:var(--lesson-ink,#346081);border-left:3px solid var(--lesson-border,#8dafd1)}.lesson strong{display:block;font-size:13px;font-weight:600;line-height:1.45}.lesson span{display:block;font-size:11px;margin-top:7px;opacity:.85}.lesson:hover{transform:translateY(-1px);box-shadow:0 4px 10px #1c4a4e15}.blank{min-height:82px;border:1px dashed var(--line);border-radius:8px;display:grid;place-items:center;color:#a3b3bb;font-size:14px}.session-line{padding:7px 22px;background:var(--soft);font-size:12px;color:var(--accent);display:flex;align-items:center;gap:8px;border-top:1px solid var(--line)}.session-line.afternoon{background:#fff5e4;color:#a57928}.schedule-foot{padding:13px 22px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;gap:16px;flex-wrap:wrap}.dot{width:7px;height:7px;border-radius:2px;display:inline-block;margin-right:6px;background:#91a7ca}.right-stack{display:flex;flex-direction:column;gap:18px}.focus-card{padding:24px;color:#fff;background:linear-gradient(140deg,#173f4c,#0b6d66);border-radius:14px;position:relative;overflow:hidden}.focus-card:after{content:'';position:absolute;right:-48px;top:-48px;width:155px;height:155px;border:1px solid #ffffff20;border-radius:50%;box-shadow:0 0 0 28px #ffffff05,0 0 0 56px #ffffff04;pointer-events:none}.focus-card .label{font-size:11px;letter-spacing:1.4px;color:#9bddd1}.focus-card .focus-name{font-size:40px;letter-spacing:-2px;font-weight:700;line-height:1.5;margin:7px 0}.focus-card .teacher-name{font-size:23px;letter-spacing:-.7px}.focus-card p{color:#c7e4e4;font-size:12px}.focus-divider{height:1px;background:#ffffff20;margin:20px 0 16px}.focus-info{display:flex;justify-content:space-between;font-size:12px;margin-top:10px}.focus-info b{font-weight:600}.mini-panel{padding:20px}.mini-panel p{font-size:12px;line-height:1.8}.quick-list{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.quick-list button{min-height:33px;padding:5px 10px;font-size:12px;font-weight:500}.quick-list button.selected{background:var(--soft);color:var(--accent);border-color:#90cec0}.info-note{border:1px solid var(--line);padding:16px;border-radius:12px;font-size:12px;color:var(--muted);line-height:1.8}.info-note svg{color:var(--accent);margin-bottom:8px;display:block}.badge{font-size:11px;white-space:nowrap;background:var(--soft);color:var(--accent);padding:4px 8px;border-radius:5px}.badge.amber{background:#fff3da;color:#9b6a16}.badge.red{background:#ffeded;color:#b64f4f}.data-table{width:100%;border-collapse:collapse;font-size:13px}.data-table td,.data-table th{padding:13px 18px;text-align:left;border-bottom:1px solid var(--line)}.data-table th{background:var(--bg);font-size:12px;color:var(--muted);font-weight:500}.data-table tr:last-child td{border-bottom:none}.data-table tbody tr:hover{background:var(--bg)}.table-wrap{overflow:auto}.empty{text-align:center;padding:48px 20px;color:var(--muted)}.empty svg{width:36px;height:36px;margin-bottom:10px;color:var(--accent)}.empty strong{display:block;color:var(--ink);font-size:16px;margin:7px 0}.empty p{font-size:13px}.section-body{padding:22px}.free-columns{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.person{padding:13px 0;border-bottom:1px solid var(--line);font-size:14px;display:flex;gap:12px;align-items:center}.initial{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-size:12px;background:var(--soft);color:var(--accent);flex-shrink:0}.person small{display:block;color:var(--muted);font-size:11px}.stat-bar{display:grid;grid-template-columns:160px 1fr 35px;gap:15px;align-items:center;margin:17px 0;font-size:13px}.bar{height:9px;border-radius:6px;background:var(--bg);overflow:hidden}.bar span{height:100%;display:block;background:linear-gradient(90deg,#42bcaa,#0b7772);border-radius:6px}.notice{border:1px solid #e8d7ab;border-radius:10px;background:#fff9e9;color:#896320;font-size:13px;padding:13px 17px;line-height:1.7;margin-bottom:20px}.upload-zone{border:2px dashed #a5cfc6;background:var(--soft);padding:35px 20px;text-align:center;border-radius:12px;cursor:pointer;display:block}.upload-zone svg{width:35px;height:35px;color:var(--accent);margin-bottom:12px}.upload-zone strong{display:block;font-size:17px;margin-bottom:8px}.upload-zone p{font-size:13px}.upload-zone input{display:block;max-width:100%;margin:18px auto 0;font-size:13px}.form-grid{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin:20px 0}.form-grid label{display:flex;flex-direction:column;gap:7px;font-size:13px;color:var(--muted)}.preview-summary{display:flex;gap:10px;flex-wrap:wrap;margin:15px 0}.preview-summary span{background:var(--bg);border:1px solid var(--line);padding:10px 14px;border-radius:8px;font-size:13px}.history-item{padding:17px 0;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px}.history-item p{font-size:12px;margin-top:4px}.history-item strong{font-size:14px}.mobile-days{display:none}.day-cards{display:none}footer{display:flex;justify-content:space-between;gap:20px;font-size:11px;color:var(--muted);padding:25px 0 5px}.footer-dot{margin:0 7px}dialog{background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:16px;width:min(460px,92vw);padding:25px;box-shadow:0 20px 80px #061c3560}dialog::backdrop{background:#071e3066;backdrop-filter:blur(3px)}.dialog-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}.detail-row{display:flex;justify-content:space-between;gap:20px;padding:12px 0;border-bottom:1px solid var(--line);font-size:14px}.detail-row span{color:var(--muted)}#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%);padding:13px 23px;border-radius:10px;background:#123a41;color:white;box-shadow:0 6px 30px #0003;z-index:100;display:none;font-size:14px;max-width:90vw}.loading{padding:30px;color:var(--muted)}.export-buttons button{min-height:34px;font-size:12px;padding:7px 10px}.dark .lesson{filter:saturate(.7) brightness(.85)}.dark .notice{background:#3c3423;color:#e2c287;border-color:#605234}.dark .session-line.afternoon{background:#3b3528;color:#edcf94}.print-title{display:none}.help-list{font-size:13px;color:var(--muted);padding-left:20px;line-height:2}.paginated-note{padding:15px;font-size:12px;color:var(--muted);text-align:center}
@media(min-width:1600px){.week-grid td{height:100px}.lesson{min-height:100px}.lesson strong{font-size:14px}.lesson span{font-size:12px}}@media(max-width:1200px){.sidebar{width:208px;padding:25px 12px}.workspace{margin-left:208px}main{padding:26px 24px}.topbar{padding:0 24px}.split{grid-template-columns:minmax(0,1fr)}.right-stack{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px}.focus-card{padding:18px}.focus-card .focus-name{font-size:28px;margin:0}.focus-divider{margin:10px 0}.focus-info{margin-top:5px}.metric{padding:16px 12px;gap:10px}.metric-icon{padding:9px}.metric strong{font-size:23px}.brand{font-size:13px;gap:8px}.brand small{font-size:10px}}@media(max-width:850px){.sidebar{position:sticky;top:0;width:100%;height:auto;display:block;padding:13px 18px 0}.brand{font-size:14px}.brandmark{padding:8px}.brand small{display:none}.nav-label,.side-bottom{display:none}nav{flex-direction:row;overflow:auto;padding:10px 0;gap:4px}nav button{white-space:nowrap;padding:8px 12px;font-size:12px;min-height:36px}nav button svg{width:16px;height:16px;margin:0}nav button.active{box-shadow:inset 0 -2px #4fd2b8}.nav-sep{display:none}.workspace{margin-left:0}.topbar{height:56px}.top-actions{gap:10px}.user-avatar{width:30px;height:30px}.page-heading{margin-bottom:20px}h1{font-size:26px}.metrics{gap:10px}.metric-icon{display:none}.right-stack{grid-template-columns:1fr 1fr}.right-stack .info-note{grid-column:1/-1}.free-columns{grid-template-columns:1fr}.toolbar{flex-wrap:wrap}.search-box{max-width:none}.edition{width:100%;justify-content:space-between}.free-columns .person{display:inline-flex;margin-right:20px}.free-columns .panel-head{padding:16px}footer{flex-direction:column;gap:5px}.private-tag{display:none}}@media(max-width:560px){main{padding:23px 16px}.topbar{padding:0 17px}.page-heading{align-items:flex-start}.page-heading .primary{font-size:0;padding:10px;min-width:43px}.page-heading .primary svg{width:21px;height:21px}h1{font-size:24px;letter-spacing:-.7px}#subtitle{font-size:13px}.eyebrow{font-size:10px}.metrics{grid-template-columns:repeat(2,1fr);margin-bottom:18px}.metric{padding:13px 15px}.metric-icon{display:block;padding:8px}.metric strong{font-size:22px}.metric small{font-size:11px}.search-box{padding:12px}.search-box input{font-size:13px}.search-box kbd{display:none}.toolbar{margin-bottom:18px;gap:12px}.panel-head{padding:17px}.controls{padding:14px 17px;gap:12px}.controls label{flex:1}.controls label select{flex:1;min-width:0}.controls .push{margin-left:0}.week-grid{display:none}.grid-wrap{padding:0 15px 15px}.mobile-days{display:flex;gap:5px;padding:0 15px 15px;overflow:auto}.mobile-days button{flex:1;padding:6px 9px;white-space:nowrap;font-size:12px;min-height:36px}.mobile-days button.selected{background:var(--accent);color:var(--surface);border-color:var(--accent)}.day-cards{display:flex;flex-direction:column;gap:9px}.mobile-slot{display:grid;grid-template-columns:42px 1fr;gap:10px;align-items:center}.mobile-slot .period{font-size:12px;color:var(--muted);text-align:center}.mobile-slot .lesson{min-height:70px;padding:12px 14px}.mobile-slot .lesson strong{font-size:15px}.mobile-slot .lesson span{font-size:12px;margin-top:4px}.mobile-slot .blank{min-height:60px}.right-stack{grid-template-columns:1fr}.focus-card{display:none}.right-stack .mini-panel{padding:17px}.info-note{display:none}.form-grid{grid-template-columns:1fr}.section-body{padding:17px}.stat-bar{grid-template-columns:125px 1fr 30px;font-size:12px;gap:10px}.data-table td,.data-table th{padding:11px 13px;white-space:nowrap}.history-item{align-items:flex-start}.export-buttons{margin-left:auto}.print-button{display:none}.switch button{font-size:12px}.notice{font-size:12px}.brand{justify-content:center}.sidebar{padding-top:12px}.panel{border-radius:12px}}@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}@media print{body{background:white;color:#111;font-family:Arial,sans-serif}.sidebar,.topbar,.page-heading,.metrics,.toolbar,.right-stack,footer,.export-buttons,.controls,#status,.mobile-days,#toast{display:none!important}.workspace{margin:0}main{padding:0}.split{display:block}.panel{box-shadow:none;border:0}.week-grid{display:table!important;border-spacing:4px}.day-cards{display:none}.grid-wrap{overflow:visible;padding:0}.lesson{background:white!important;color:#111!important;border:1px solid #ccc;min-height:70px;filter:none!important}.lesson span{font-size:11px}.panel-head{padding:10px 0}.panel-head h2{font-size:19px}.print-title{display:block;font-weight:bold;font-size:18px}.session-line{background:white!important;color:black!important}button{box-shadow:none}.data-table{font-size:11px}.data-table td,.data-table th{padding:7px}.notice{display:none}@page{size:A4 landscape;margin:12mm}}
.illustration{display:inline-block;background-image:url('/illustrations.webp');background-size:300% 300%;background-repeat:no-repeat;flex-shrink:0}.art-class{background-position:0 0}.art-math{background-position:50% 0}.art-literature{background-position:100% 0}.art-science{background-position:0 50%}.art-language{background-position:50% 50%}.art-geography{background-position:100% 50%}.art-music{background-position:0 100%}.art-art{background-position:50% 100%}.art-sport{background-position:100% 100%}.lesson .subject-thumb{width:28px;height:28px;border-radius:7px;display:block;margin:0 0 6px;opacity:1}.class-art{display:block;width:100%;aspect-ratio:1;border-radius:10px;margin-bottom:20px}.teacher-photo,.teacher-placeholder{border-radius:50%;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;object-fit:cover;object-position:center 30%;background:#dcefe9;color:#277768}.teacher-photo.large,.teacher-placeholder.large{width:86px;height:86px;margin-bottom:16px;border:3px solid #ffffff99}.teacher-placeholder.large svg{width:38px;height:38px}.teacher-photo.small,.teacher-placeholder.small{width:40px;height:40px}.photo-edit{background:#ffffff1a;color:#e4fff8;border-color:#ffffff40;padding:8px 10px;font-size:12px;margin-top:15px;position:relative;z-index:1}.photo-edit:hover{background:#ffffff30}.teacher-focus .teacher-name{font-size:22px}.lesson-visual{display:flex;align-items:center;gap:18px;margin-bottom:18px}.detail-art{width:100px;height:100px;border-radius:12px}.lesson-visual p{margin-top:8px}.photo-picker{font-size:14px;display:block;margin:20px 0 10px}.photo-picker input{display:block;max-width:100%;margin-top:10px;font-size:13px}.photo-hint{font-size:12px;line-height:1.8}.teacher-photo.preview,.teacher-placeholder.preview{width:170px;height:170px}.teacher-placeholder.preview svg{width:65px;height:65px}#photo-preview{text-align:center;min-height:100px}.photo-draft{max-width:100%;max-height:260px;object-fit:contain;border-radius:12px}#photo-status{font-size:13px;margin-top:12px;color:var(--accent)}.dark .illustration{filter:brightness(.88)}
@media(min-width:1201px){.lesson{min-height:110px}.week-grid td{height:110px}}
@media(max-width:1200px){.class-art{width:70px;height:70px;float:right;margin:0 0 10px 10px}.teacher-photo.large,.teacher-placeholder.large{width:65px;height:65px;margin-bottom:10px}}
@media(max-width:560px){.teacher-focus{display:block!important}.teacher-focus .teacher-photo,.teacher-focus .teacher-placeholder{float:left;margin:0 16px 10px 0}.teacher-focus .focus-divider,.teacher-focus .focus-info{display:none}.teacher-focus .photo-edit{margin-top:10px}.lesson .subject-thumb{width:43px;height:43px;float:right;margin:0 0 0 10px}.class-focus{display:block!important}.class-focus .focus-divider,.class-focus .focus-info{display:none}.class-focus .class-art{width:85px;height:85px;margin:0 0 0 15px}.class-focus .focus-name{font-size:28px}.class-focus{order:2}.lesson-visual .detail-art{width:90px;height:90px}}
@media print{.illustration,.photo-edit,.teacher-photo,.teacher-placeholder{display:none!important}.lesson{min-height:70px!important}.week-grid td{height:auto}}
/* School identity and live bell schedule */
:root{--accent:#165ba5;--soft:#edf4ff;--nav:#102a4d;--bg:#f2f5fa}.sidebar{background:linear-gradient(165deg,#112f53 0%,#142642 70%,#0c3446 100%)}.brand{font-size:13px;gap:10px}.brand-logo{width:46px;height:46px;object-fit:contain;background:#fff;border-radius:50%;padding:2px;box-shadow:0 3px 12px #0002}.brand small{font-size:10px;letter-spacing:1.6px}nav button{font-size:14px}nav button.active{background:linear-gradient(100deg,#305783,#284865);color:#fff;box-shadow:inset 3px 0 #60dacb}.school-banner{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(380px,1.05fr);gap:25px;align-items:center;overflow:hidden;border-radius:20px;padding:27px 30px;margin-bottom:27px;background:radial-gradient(ellipse at 10% -20%,#3966c8 0%,transparent 58%),linear-gradient(118deg,#122f68 0%,#144d79 65%,#087b7e 100%);box-shadow:0 14px 30px #1c456d22,inset 0 1px #ffffff44;color:#fff}.school-banner:before,.school-banner:after{content:'';position:absolute;pointer-events:none;border:1px solid #ffffff16;border-radius:50%;width:380px;height:380px;left:26%;top:-270px;transform:rotate(-25deg);box-shadow:0 0 0 32px #ffffff04,0 0 0 64px #ffffff03}.school-banner:after{width:320px;height:320px;left:-240px;top:65px;border:35px solid #ffffff08;box-shadow:none}.banner-identity{display:flex;align-items:center;gap:22px;position:relative;z-index:1;min-width:0}.banner-seal{width:110px;height:110px;padding:7px;background:white;border-radius:50%;flex-shrink:0;box-shadow:0 0 0 8px #ffffff0c,0 10px 25px #08214740}.banner-seal img{width:100%;height:100%;border-radius:50%;object-fit:contain}.banner-kicker{font-size:11px;font-weight:500;letter-spacing:1.7px;color:#c9ddff}.banner-copy h2{font-size:25px;letter-spacing:.1px;line-height:1.45;margin:6px 0;font-weight:800;color:#fff}.banner-copy p{color:#eef6ff;font-size:16px;font-weight:500}.banner-location{font-size:10px;letter-spacing:1.5px;color:#9fcfe8;margin-top:15px}.live-card{position:relative;z-index:1;min-width:0;border:1px solid #ffffff30;border-radius:15px;background:#ffffff0d;padding:17px 20px;box-shadow:inset 0 1px #ffffff0c}.live-top{display:flex;justify-content:space-between;align-items:center;gap:10px;font-size:11px;color:#c8e6f4}.live-indicator{font-size:9px;letter-spacing:1.3px;color:#9bf1db;white-space:nowrap}.live-indicator:before{content:'';display:inline-block;width:5px;height:5px;border-radius:50%;background:#6de1b7;margin-right:6px}.clock-status{display:flex;align-items:center;gap:19px;margin:10px 0 14px}.clock-status time{font-size:36px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:-1px;line-height:1.2}.clock-status>div{border-left:1px solid #ffffff2a;padding-left:17px}.clock-status strong{display:block;font-size:14px;font-weight:600;line-height:1.4}.clock-status>div>span{display:block;font-size:10px;line-height:1.5;color:#b8d7e6;margin-top:5px}.live-progress-track{height:5px;background:#031f4355;border-radius:6px;overflow:hidden}.live-progress-track>span{display:block;height:100%;width:0;background:linear-gradient(90deg,#54c3fc,#79edcd);border-radius:6px}.live-counts{display:flex;gap:20px;justify-content:space-between;margin-top:11px}.live-counts>div:last-child{text-align:right}.live-counts span{font-size:10px;color:#b8d7e6;display:block;margin-bottom:3px}.live-counts b{display:block;font-size:15px;font-variant-numeric:tabular-nums;font-weight:600}.live-bottom{display:flex;justify-content:space-between;align-items:center;gap:8px;margin-top:10px;font-size:9px;color:#a2c7db}.live-bottom button{background:transparent;border:0;min-height:26px;padding:3px 0;color:#c9edff;font-size:11px;text-decoration:underline;text-underline-offset:4px;box-shadow:none}.live-card[data-kind=break] .live-indicator,.live-card[data-kind=before] .live-indicator{color:#ffe1a6}.live-card[data-kind=after] .live-indicator:before,.live-card[data-kind=off] .live-indicator:before{background:#b8c6d7}.primary{background:linear-gradient(140deg,#2264b2,#174c8b);border-color:#235790;box-shadow:0 4px 12px #1e57952b}.primary:hover{background:#164b86}.page-heading{margin-bottom:22px}h1{font-size:25px}.panel{border-color:#dde6ee;box-shadow:0 5px 20px #22446908}.metric{box-shadow:0 4px 14px #14356805}.metric-icon{background:#edf4ff;color:#3c6cad}.subject-symbol{display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;color:var(--lesson-ink,#286087);background:#ffffff90;border-radius:8px}.subject-symbol svg{width:23px;height:23px;stroke-width:1.8}.lesson .subject-thumb{display:inline-flex;width:32px;height:32px;margin:0 0 8px;opacity:1;background:#ffffffb0;box-shadow:0 1px 3px #25405b0a}.lesson strong{font-size:14px}.lesson span:not(.subject-thumb){font-size:12px}.subject-symbol.class-art{width:62px;height:62px;aspect-ratio:1;background:#ffffff14;color:#a9eeeb;margin:0 0 14px;float:none;display:flex}.subject-symbol.class-art svg{width:36px;height:36px}.subject-symbol.detail-art{width:85px;height:85px;background:var(--soft);color:var(--accent)}.subject-symbol.detail-art svg{width:43px;height:43px}.focus-card{background:linear-gradient(140deg,#194a70,#086b6b)}.period-time{display:block;font-size:10px;font-weight:400;line-height:1.5;margin-top:5px;white-space:nowrap}.week-grid th:first-child{width:44px}.lesson-now{outline:2px solid #078b7a;outline-offset:1px;box-shadow:0 0 0 4px #13b89d16!important;position:relative}.lesson-now:after{content:'ĐANG HỌC';font-size:8px;font-weight:700;letter-spacing:.3px;color:#087265;display:block;margin-top:6px}.bell-note{font-size:12px;line-height:1.9;margin-top:18px}.dark{--accent:#8cc1ff;--soft:#233e5a}.dark .panel{border-color:var(--line)}.dark .subject-symbol{background:#dae7ec;color:#264b69}.dark .subject-symbol.class-art{background:#ffffff16;color:#b5f5e5}.dark .subject-symbol.detail-art{background:#365870;color:#e4f2ff}
@media(min-width:1500px){.banner-copy h2{font-size:31px}.banner-seal{width:124px;height:124px}.clock-status time{font-size:42px}.clock-status strong{font-size:16px}.live-counts b{font-size:17px}}
@media(max-width:1200px){.school-banner{grid-template-columns:1fr;gap:20px;padding:24px}.banner-identity{gap:19px}.banner-seal{width:77px;height:77px}.banner-copy h2{font-size:26px;margin:1px 0}.banner-location{margin-top:7px}.banner-copy p{font-size:14px}.live-card{padding:14px 19px}.clock-status{margin:9px 0}.clock-status time{font-size:36px}.live-counts{justify-content:flex-start;gap:45px}.live-counts>div:last-child{text-align:left}.live-bottom{margin-top:7px}.subject-symbol.class-art{float:right;width:50px;height:50px;margin:0 0 0 10px}.banner-location{font-size:9px}.brand-logo{width:38px;height:38px}}
@media(min-width:851px) and (max-width:1200px){.school-banner{grid-template-columns:1fr 1.2fr;padding:20px;gap:18px}.banner-identity{display:block}.banner-seal{width:65px;height:65px;margin-bottom:16px}.banner-kicker{font-size:9px;letter-spacing:1px}.banner-copy h2{font-size:22px}.clock-status{display:block}.clock-status>div{border-left:0;padding-left:0;margin-top:10px}.live-counts{gap:15px;justify-content:space-between}.live-counts b{font-size:13px}}
@media(max-width:560px){.school-banner{padding:20px 16px 16px;border-radius:16px;margin-bottom:22px;gap:18px}.banner-identity{gap:16px}.banner-seal{width:72px;height:72px;padding:4px;box-shadow:0 0 0 5px #ffffff0c}.banner-kicker{font-size:8px;letter-spacing:1px}.banner-copy h2{font-size:21px;letter-spacing:0;margin:4px 0;line-height:1.25}.banner-copy p{font-size:13px}.banner-location{font-size:8px;letter-spacing:.7px}.live-card{padding:13px 14px;background:#0323482b;border-radius:11px}.live-top{font-size:10px}.clock-status{gap:13px;margin:12px 0}.clock-status time{font-size:31px;letter-spacing:-.8px}.clock-status>div{padding-left:12px}.clock-status strong{font-size:12px}.clock-status>div>span{font-size:9px}.live-counts{gap:12px;justify-content:space-between}.live-counts>div:last-child{text-align:right}.live-counts b{font-size:14px}.live-bottom{font-size:8px}.page-heading h1{font-size:22px}.lesson .subject-thumb{float:right;width:38px;height:38px;margin:0 0 0 10px}.subject-symbol svg{width:25px;height:25px}.lesson strong{font-size:15px}.period-time{font-size:9px}.lesson-now:after{font-size:9px}.subject-symbol.class-art{width:55px;height:55px}.brand-logo{width:32px;height:32px}.brand{font-size:13px}.topbar{height:48px}nav button{font-size:12px}}
@media(max-width:370px){.clock-status{display:block}.clock-status>div{padding:0;border:0;margin-top:8px}.banner-copy h2{font-size:18px}.banner-seal{width:60px;height:60px}.live-counts b{font-size:12px}}
@media print{.school-banner,.subject-symbol{display:none!important}.lesson-now{outline:0;box-shadow:none!important}.lesson-now:after{display:none}.period-time{display:block;color:#222}.lesson{min-height:70px!important}}
/* Layered campus banner and tactile controls */
.campus-banner{min-height:285px;grid-template-columns:minmax(0,1fr) minmax(350px,.95fr);padding:29px 30px;background:linear-gradient(120deg,#153970,#085a71);isolation:isolate;box-shadow:0 3px 0 #123054,0 14px 30px #183c7025,inset 0 1px #b7d8ff77}.campus-visual{position:absolute;inset:0;z-index:-1;overflow:hidden}.gate-photo{position:absolute;width:100%;height:100%;object-fit:cover;object-position:center 53%;opacity:.65}.campus-visual:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#102b60ee 0%,#15385dad 36%,#084756b8 62%,#064453e8 100%)}.student-illustration{position:absolute;bottom:-30px;left:28%;height:265px;width:310px;object-fit:cover;object-position:50% 15%;border-radius:100px 100px 0 0;z-index:1;opacity:.95;mask-image:linear-gradient(to bottom,#000 75%,transparent);box-shadow:0 0 30px #ffffff18;transform:rotate(-3deg)}.campus-pattern{position:absolute;inset:0;z-index:2;background-image:radial-gradient(#d8f5ff80 1px,transparent 1px);background-size:17px 17px;mask-image:linear-gradient(120deg,transparent 40%,#000 52%,transparent 72%);opacity:.22}.campus-banner .banner-identity{align-self:start;align-items:center;gap:16px;max-width:100%;flex-wrap:wrap}.campus-banner .banner-seal{width:78px;height:78px;padding:4px}.campus-banner .banner-copy{max-width:260px;text-shadow:0 2px 8px #08224490}.campus-banner .banner-copy h2{font-size:26px}.campus-banner .banner-kicker{font-size:10px}.campus-banner .banner-location{color:#cae4ef}.campus-banner .live-card{background:linear-gradient(145deg,#13385be8,#06576bf0);backdrop-filter:blur(12px);border:1px solid #8ab3cf65;box-shadow:0 3px 0 #062e4c80,0 9px 20px #07264455,inset 0 1px #e2f5ff40}.campus-banner .clock-status{flex-wrap:wrap;gap:12px}.campus-banner .clock-status>div{border:0;padding-left:0}.campus-banner .clock-status time{font-size:38px}.session-tabs{display:flex;gap:5px;background:var(--bg);padding:5px;border:1px solid var(--line);border-radius:12px;flex-wrap:wrap}.session-tabs button{font-size:12px;min-height:36px;padding:7px 10px;border-color:transparent;background:transparent;box-shadow:none}.session-tabs button svg{width:16px;height:16px}.session-tabs button.selected{background:linear-gradient(#3c8bd2,#2562a0);color:#fff;border-color:#477eac;box-shadow:inset 0 1px #ffffff55,0 2px 0 #154473,0 4px 8px #173c6a20}.session-tabs button[data-session=Chiều].selected{background:linear-gradient(#bc914a,#906523);border-color:#b78e4c;box-shadow:inset 0 1px #ffffff55,0 2px 0 #6e4c19}.edition{white-space:normal}.edition select{max-width:290px}.primary{background:linear-gradient(180deg,#408bd0 0%,#2c70b2 49%,#205b98 50%,#245b90 100%);border-color:#3a6e9e;box-shadow:inset 0 1px 0 #ffffff77,0 3px 0 #123f6b,0 7px 14px #24548833;text-shadow:0 1px 1px #184b7380;transform:translateY(0)}.primary:hover{background:linear-gradient(#54a0df,#2a75b9);box-shadow:inset 0 1px #ffffff88,0 4px 0 #123f6b,0 9px 16px #24548833;transform:translateY(-1px)}.primary:active{transform:translateY(2px);box-shadow:inset 0 1px #ffffff55,0 1px 0 #123f6b}.quick-list button,.export-buttons button,.controls>button,.history-item>button{background:linear-gradient(180deg,var(--surface),var(--bg));box-shadow:inset 0 1px #ffffff55,0 2px 0 var(--line),0 4px 7px #1534560b}.quick-list button:active,.export-buttons button:active{transform:translateY(2px);box-shadow:inset 0 1px #ffffff55}.sidebar nav button.active{background:linear-gradient(155deg,#416d9b,#264a70);border:1px solid #ffffff19;box-shadow:inset 0 1px #ffffff26,inset 3px 0 #73e5cf,0 3px 0 #0b213955,0 6px 12px #061d3333}.lesson{box-shadow:inset 0 1px #ffffff80,0 2px 0 #1c425710;transition:transform .16s,box-shadow .16s}.lesson:hover{transform:translateY(-2px);box-shadow:inset 0 1px #ffffff88,0 4px 0 #1c425715,0 7px 14px #1c42571c}.dark .quick-list button,.dark .export-buttons button,.dark .controls>button{box-shadow:inset 0 1px #ffffff15,0 2px 0 #071923,0 4px 7px #0002}.dark .lesson{filter:saturate(.83) brightness(.95)}
@media(min-width:1500px){.campus-banner .banner-copy{max-width:310px}.campus-banner .banner-copy h2{font-size:29px}.student-illustration{left:33%;height:280px;width:310px}.campus-banner .banner-identity{max-width:480px}.campus-banner .live-card{max-width:520px;justify-self:end;width:100%}}
@media(max-width:1200px){.campus-banner{grid-template-columns:1fr 1fr;gap:20px;padding:25px;min-height:315px}.campus-banner .banner-identity{display:flex;align-content:start;gap:12px}.campus-banner .banner-seal{width:65px;height:65px;margin:0}.campus-banner .banner-copy h2{font-size:23px}.student-illustration{left:17%;width:270px;height:230px;opacity:.82;bottom:-50px}.campus-banner .live-card{align-self:center}.campus-banner .clock-status time{font-size:33px}}
@media(max-width:850px){.campus-banner{grid-template-columns:1fr 1fr;padding:22px;gap:18px}.campus-banner .banner-copy{max-width:100%}.campus-banner .banner-copy h2{font-size:23px}.student-illustration{left:14%;height:220px;bottom:-55px}.campus-banner .clock-status time{font-size:32px}.campus-banner .live-card{padding:15px}.campus-banner .banner-identity{display:block}.campus-banner .banner-seal{margin-bottom:12px}.edition select{max-width:75%}}
@media(max-width:560px){.campus-banner{grid-template-columns:1fr;padding:21px 16px 16px;gap:18px;min-height:0}.campus-banner .banner-identity{display:flex;align-items:center;min-height:138px;max-width:74%;gap:13px}.campus-banner .banner-copy h2{font-size:21px}.campus-banner .banner-seal{width:60px;height:60px;margin:0}.campus-banner .banner-copy p{font-size:12px}.campus-banner .banner-kicker{font-size:8px;letter-spacing:.7px}.campus-banner .banner-location{font-size:8px;margin-top:8px}.student-illustration{top:24px;bottom:auto;left:auto;right:-45px;width:190px;height:166px;border-radius:70px 70px 0 0;opacity:.95;transform:rotate(-5deg);mask-image:linear-gradient(to bottom,#000 68%,transparent)}.gate-photo{object-position:55% 35%}.campus-visual:after{background:linear-gradient(90deg,#102b60dd,#123d6088),linear-gradient(0deg,#0a4260,transparent 70%)}.campus-banner .live-card{padding:14px;background:#103f5fe8}.campus-banner .clock-status{justify-content:space-between;flex-wrap:nowrap;gap:10px}.campus-banner .clock-status time{font-size:32px}.session-tabs{width:100%;display:grid;grid-template-columns:1.5fr 1fr 1fr}.session-tabs button{font-size:11px;padding:7px 5px}.session-tabs button svg{width:15px;height:15px}.controls .switch.push{margin-left:auto}.edition select{font-size:13px}.campus-banner .banner-copy{max-width:220px}}
@media(max-width:370px){.campus-banner .clock-status{flex-wrap:wrap}.campus-banner .banner-copy h2{font-size:18px}.campus-banner .banner-identity{max-width:77%}.student-illustration{right:-62px}.session-tabs button{font-size:10px}}
@media(prefers-reduced-motion:reduce){button:hover,.lesson:hover{transform:none!important}}@media print{.session-tabs{display:none!important}.lesson{box-shadow:none!important}}

/* Banner uses the authentic school gate only. */
.campus-banner .banner-identity{align-self:center;max-width:100%}.campus-banner .banner-copy{max-width:100%}
/* Auth and administration share the school's existing visual system. */
[hidden]{display:none!important}.access-page{min-height:100dvh;display:grid;place-items:center;padding:24px;background:radial-gradient(ellipse at top,#d5f2ee,transparent 65%),#eef4f7}.access-card{width:min(100%,520px);padding:40px;border-radius:28px;background:var(--surface,#fff);box-shadow:0 20px 70px #153e4820;text-align:center;border:1px solid #fff}.access-logo{width:96px;height:96px;object-fit:contain;margin-bottom:20px}.access-card h1{font-size:clamp(24px,5vw,34px);line-height:1.25;margin:10px 0 18px}.access-card p{font-size:16px;line-height:1.65;margin-bottom:18px}.access-card button,.access-card .primary{width:100%;margin:8px 0;min-height:48px;display:flex;align-items:center;justify-content:center;gap:12px}.google-login strong{font-size:22px}.access-card details{text-align:left;border-top:1px solid #dde5e9;margin-top:24px;padding-top:18px}.access-card summary{cursor:pointer;font-size:14px}.access-card details p{font-size:14px;margin-top:14px}.admin-top{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:22px 4vw;background:#102c36;color:white;flex-wrap:wrap}.admin-top .brand{color:white}.admin-top>div{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px}.admin-top a{color:inherit}.admin-main{max-width:1320px;margin:auto;padding:32px 24px}.admin-main h1{font-size:clamp(26px,4vw,36px)}.admin-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 10px}.admin-tabs a{padding:12px 18px;background:white;border-radius:12px;box-shadow:0 3px 0 #cad6db;border:1px solid #dce6e9;text-decoration:none;color:inherit}.admin-main input{min-height:44px;min-width:230px}.admin-main .controls{flex-wrap:wrap}.admin-main td button{margin:4px 4px 4px 0;font-size:14px}.admin-note{margin-top:24px;font-size:14px}.admin-main #admin-status{min-height:24px;color:#087a70;margin:12px 0}#decision-dialog{max-width:min(90vw,500px)}#decision-copy{margin:18px 0 24px;font-size:16px;line-height:1.6;overflow-wrap:anywhere}.top-actions{flex-wrap:wrap}.top-actions a{color:var(--accent);font-weight:600}.top-actions .private-tag{max-width:240px;overflow-wrap:anywhere}@media(max-width:600px){.access-card{padding:28px 22px}.admin-main{padding:22px 12px}.admin-top{padding:18px 16px}.admin-main .page-heading{align-items:flex-start;gap:18px;flex-direction:column}.admin-main .controls label{width:100%}.admin-main input,.admin-main select{width:100%;min-width:0}.admin-top>div{gap:12px}.top-actions .private-tag{display:none}.admin-main .metrics{grid-template-columns:1fr 1fr}}