:root{color-scheme:dark;--ink:#f1f5f9;--paper:#090f1a;--white:#131d2c;--muted:#98a6b8;--line:#293649;--panel:#101827;--control:#192537;--accent-ink:#101827;--empty:rgba(255,255,255,.035);--lime:#d7ff3f;--math:#8b83ff;--phys:#ff7048;--eng:#25ad8b;--shadow:0 18px 55px rgba(0,0,0,.32)}
    html[data-theme="light"]{color-scheme:light;--ink:#101827;--paper:#f4f2eb;--white:#fff;--muted:#6e7480;--line:#d9d7cf;--panel:#101827;--control:#f6f7f8;--accent-ink:#101827;--empty:rgba(255,255,255,.45);--math:#635bff;--phys:#ef5d36;--eng:#168b70;--shadow:0 16px 50px rgba(16,24,39,.12)}
    *{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-width:320px;transition:background-color .2s ease,color .2s ease}
    button,select,input,textarea{font:inherit} button,select{cursor:pointer} button:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(99,91,255,.35);outline-offset:2px}
    .topbar{background:var(--panel);color:#fff;padding:18px max(20px,calc((100vw - 1180px)/2));display:flex;align-items:center;justify-content:space-between;gap:18px;position:sticky;top:0;z-index:20;box-shadow:0 8px 24px rgba(0,0,0,.24)}
    .brand{display:flex;align-items:center;gap:12px;font-weight:850;font-size:1.15rem;letter-spacing:-.03em}.brand-mark{width:30px;height:30px;border:3px solid var(--lime);border-radius:8px;display:grid;place-items:center;color:var(--lime);font-size:.78rem}.brand small{font-weight:600;color:#aeb5c1;font-size:.75rem;letter-spacing:.04em;margin-left:4px}
    .top-actions{display:flex;align-items:center;gap:10px}.theme-toggle{width:42px;height:42px;border:1px solid #3a4352;background:#182334;color:#fff;border-radius:12px;display:grid;place-items:center;font-size:1.05rem}.theme-toggle:hover{border-color:var(--lime)}.group-select{display:flex;align-items:center;gap:8px;background:var(--lime);color:var(--accent-ink);border-radius:12px;padding:6px 8px 6px 12px;font-weight:800}.group-select select{background:transparent;border:0;color:var(--accent-ink);font-weight:900;padding:4px 20px 4px 2px}
    main{max-width:1180px;margin:0 auto;padding:36px 20px 70px}.summary{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(260px,.65fr);gap:22px}.next-card{background:var(--panel);color:#fff;border-radius:28px;padding:30px;min-height:260px;position:relative;overflow:hidden;box-shadow:var(--shadow)}.next-card:after{content:"";position:absolute;width:210px;height:210px;border:48px solid rgba(215,255,63,.12);border-radius:50%;right:-76px;bottom:-104px}.eyebrow{font-size:.78rem;text-transform:uppercase;letter-spacing:.13em;font-weight:850;color:var(--muted)}.next-card .eyebrow{color:var(--lime)}.next-main{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-top:48px;position:relative;z-index:1}.next-subject{font-size:clamp(2.1rem,6vw,4.5rem);font-weight:900;line-height:.92;letter-spacing:-.065em}.next-meta{text-align:right;font-size:1rem;line-height:1.55;color:#dce0e6}.next-time{font-size:1.7rem;font-weight:850;color:#fff;letter-spacing:-.04em}.stats{display:grid;grid-template-columns:1fr 1fr;gap:14px}.stat-card{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:22px;display:flex;flex-direction:column;justify-content:space-between;min-height:120px}.stat-card:first-child{grid-column:1/-1}.stat-value{font-size:2rem;font-weight:900;letter-spacing:-.05em}.stat-label{color:var(--muted);font-size:.82rem;font-weight:700}.stat-dot{width:11px;height:11px;border-radius:50%;margin-bottom:12px}.toolbar{margin:38px 0 18px;display:flex;align-items:end;justify-content:space-between;gap:20px;flex-wrap:wrap}.toolbar h1{font-size:clamp(1.7rem,4vw,2.6rem);margin:4px 0 0;letter-spacing:-.05em}.filters{display:flex;gap:8px;flex-wrap:wrap}.filter{border:1px solid var(--line);background:var(--white);color:var(--ink);padding:10px 14px;border-radius:999px;font-weight:750}.filter.active{background:var(--lime);color:var(--accent-ink);border-color:var(--lime)}
    .week-strip{display:flex;gap:8px;overflow:auto;padding:2px 2px 14px;scrollbar-width:thin}.week-btn{border:1px solid var(--line);background:transparent;min-width:68px;padding:11px 10px;border-radius:14px;color:var(--ink);font-weight:850}.week-btn span{display:block;color:var(--muted);font-weight:650;font-size:.72rem;margin-top:3px}.week-btn.active{background:var(--lime);color:var(--accent-ink);border-color:var(--lime);box-shadow:3px 3px 0 var(--panel)}.week-btn.active span{color:#536019}
    .schedule-head{display:flex;align-items:center;justify-content:space-between;margin:20px 0 12px}.schedule-head h2{font-size:1.2rem;margin:0}.schedule-head span{font-size:.88rem;color:var(--muted)}.session-list{display:grid;gap:10px}.session{display:grid;grid-template-columns:74px 8px minmax(0,1fr) auto;gap:18px;align-items:center;background:var(--white);border:1px solid var(--line);border-radius:18px;padding:18px 20px;transition:transform .18s ease,box-shadow .18s ease}.session:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(0,0,0,.18)}.session-date{font-weight:900;line-height:1.2}.session-date small{display:block;color:var(--muted);font-size:.72rem;text-transform:uppercase;margin-top:3px}.subject-line{font-size:1.08rem;font-weight:850}.teacher{color:var(--muted);font-size:.88rem;margin-top:4px}.session-time{font-weight:900;font-size:1.05rem;white-space:nowrap}.bar{height:48px;border-radius:999px}.bar.maths{background:var(--math)}.bar.physique{background:var(--phys)}.bar.anglais{background:var(--eng)}.empty{border:1px dashed var(--line);border-radius:18px;padding:38px;text-align:center;color:var(--muted);background:var(--empty)}
    .legend{display:flex;gap:18px;flex-wrap:wrap;margin-top:24px;color:var(--muted);font-size:.8rem;font-weight:700}.legend i{display:inline-block;width:9px;height:9px;border-radius:50%;margin-right:6px}.update-note{margin-top:48px;border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:.83rem}.update-note b{color:var(--ink)}
    dialog{border:1px solid var(--line);border-radius:26px;padding:0;width:min(520px,calc(100% - 28px));background:var(--white);box-shadow:0 30px 90px rgba(0,0,0,.5);color:var(--ink)}dialog::backdrop{background:rgba(2,6,14,.82);backdrop-filter:blur(6px)}.group-welcome{padding:30px}.welcome-mark{width:48px;height:48px;border-radius:14px;background:var(--panel);color:var(--lime);display:grid;place-items:center;font-weight:950;font-size:1.15rem;margin-bottom:28px}.group-welcome h2{font-size:clamp(1.8rem,7vw,2.65rem);line-height:1;letter-spacing:-.055em;margin:0 0 12px}.group-welcome p{color:var(--muted);line-height:1.55;margin:0 0 24px}.welcome-form{display:grid;grid-template-columns:1fr auto;gap:10px}.welcome-form select{min-width:0;border:1px solid var(--line);background:var(--control);color:var(--ink);border-radius:14px;padding:14px;font-weight:850;font-size:1rem}.welcome-form button{border:1px solid var(--panel);background:var(--lime);color:var(--accent-ink);border-radius:14px;padding:14px 18px;font-weight:900}.welcome-note{font-size:.76rem;color:var(--muted);margin-top:14px}
    @media(max-width:760px){.topbar{padding:13px 14px}.brand small,.ghost .long{display:none}.ghost{padding:9px 11px}.group-select{padding-left:9px}.group-select>span{display:none}main{padding:22px 14px 50px}.summary{grid-template-columns:1fr}.next-card{min-height:235px;padding:23px;border-radius:22px}.next-main{margin-top:42px;align-items:flex-start;flex-direction:column}.next-meta{text-align:left}.stats{grid-template-columns:repeat(3,1fr)}.stat-card:first-child{grid-column:auto}.stat-card{min-height:100px;padding:15px}.stat-value{font-size:1.55rem}.toolbar{margin-top:30px}.session{grid-template-columns:58px 6px 1fr;padding:15px 14px;gap:12px}.session-time{grid-column:3;font-size:.92rem}.update-note{flex-direction:column}.modal-body,.modal-head{padding-left:18px;padding-right:18px}}