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:root{--mvec-navy:#1f5f82;--mvec-navy-strong:#174a66;--mvec-navy-ink:#fff;--mvec-teal:#2f8a86;--mvec-mint:#38b898;--mvec-sky:#3fa3e0;--mvec-indigo:#24408e;--mvec-bg:#f3f7f8;--mvec-surface:#fff;--mvec-surface-2:#f8fbfb;--mvec-tint:#e8f3f2;--mvec-navy-tint:#e6eff5;--mvec-sky-tint:#e7f3fb;--mvec-ink:#17323f;--mvec-muted:#587080;--mvec-line:#d9e5e8;--mvec-line-strong:#bfd1d6;--mvec-skeleton:#e4edef;--mvec-skeleton-shine:#f3f8f9;--mvec-ok:#23926d;--mvec-ok-ink:#1d6b51;--mvec-ok-tint:#e3f5ee;--mvec-ok-line:#bfe6d6;--mvec-warn:#d99a2b;--mvec-warn-ink:#8a5d0c;--mvec-warn-tint:#fdf3dc;--mvec-warn-line:#f1dca8;--mvec-danger:#b83a2e;--mvec-danger-tint:#fbeae8;--mvec-danger-line:#f2c5bf;--mvec-radius-sm:10px;--mvec-radius:14px;--mvec-radius-lg:20px;--mvec-shadow-color:#17323f14;--mvec-shadow-sm:0 1px 2px var(--mvec-shadow-color);--mvec-shadow:0 1px 2px var(--mvec-shadow-color), 0 6px 18px var(--mvec-shadow-color);--mvec-shadow-lg:0 2px 4px var(--mvec-shadow-color), 0 16px 40px 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.brand{min-height:var(--mvec-tap);border-radius:8px;align-items:center;display:inline-flex}.site-header img{width:auto;height:46px;display:block}.site-header .app{color:var(--mvec-navy);background:var(--mvec-navy-tint);letter-spacing:.02em;white-space:nowrap;border-radius:999px;margin-left:auto;padding:6px 12px;font-size:.85rem;font-weight:600}.lang-switch{background:var(--mvec-tint);border-radius:999px;padding:3px;display:inline-flex}.lang-switch a{min-width:40px;min-height:36px;color:var(--mvec-navy);border-radius:999px;justify-content:center;align-items:center;padding:0 10px;font-size:.82rem;font-weight:700;text-decoration:none;display:inline-flex}.lang-switch a[aria-current=true]{background:var(--mvec-navy);color:var(--mvec-navy-ink)}.site-stripe{height:5px;display:flex}.site-stripe span:first-child{background:var(--mvec-indigo);flex:0 0 22%}.site-stripe span:last-child{background:var(--mvec-mint);flex:1}main{flex-direction:column;gap:16px;max-width:600px;margin:0 auto;padding:20px 16px 72px;display:flex}main.wide{max-width:1040px}main>*{min-width:0}.page-head{flex-direction:column;gap:4px;display:flex}.eyebrow{letter-spacing:.08em;text-transform:uppercase;color:var(--mvec-teal);font-size:.8rem;font-weight:600}.topbar{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;margin:-6px 0 -4px;display:flex}.back-link{min-height:var(--mvec-tap);color:var(--mvec-navy);border-radius:8px;align-items:center;gap:4px;padding:0 8px 0 0;font-size:.92rem;font-weight:600;text-decoration:none;display:inline-flex}.back-link:hover{text-decoration:underline}.icon{vertical-align:-.25em;flex:none;width:1.25em;height:1.25em;display:inline-block}.card{background:var(--mvec-surface);border:1px solid var(--mvec-line);border-radius:var(--mvec-radius);box-shadow:var(--mvec-shadow-sm);flex-direction:column;gap:12px;padding:18px;display:flex}.card.flush{gap:0;padding:0;overflow:hidden}.card-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.card.flush>.card-head{padding:16px 18px 12px}.section-title{align-items:center;gap:8px;display:flex}.section-title .icon{color:var(--mvec-teal)}button,a.btn{font:inherit;min-height:var(--mvec-tap);border-radius:var(--mvec-radius-sm);cursor:pointer;border:1px solid var(--mvec-navy);background:var(--mvec-navy);color:var(--mvec-navy-ink);text-align:center;transition:background-color var(--mvec-dur) var(--mvec-ease), border-color var(--mvec-dur) var(--mvec-ease), color var(--mvec-dur) var(--mvec-ease), transform .12s var(--mvec-ease), box-shadow var(--mvec-dur) var(--mvec-ease);touch-action:manipulation;-webkit-user-select:none;user-select:none;justify-content:center;align-items:center;gap:8px;padding:10px 18px;font-size:.98rem;font-weight:600;line-height:1.25;text-decoration:none;display:inline-flex}button:hover,a.btn:hover{background:var(--mvec-navy-strong);border-color:var(--mvec-navy-strong)}button:active:not(:disabled),a.btn:active{transform:scale(.97)}button:disabled{opacity:.55;cursor:not-allowed}button.secondary,a.btn.secondary{background:var(--mvec-surface);color:var(--mvec-navy);border-color:var(--mvec-line-strong)}button.secondary:hover,a.btn.secondary:hover{background:var(--mvec-navy-tint);border-color:var(--mvec-navy)}button.ghost,a.btn.ghost{color:var(--mvec-navy);background:0 0;border-color:#0000}button.ghost:hover,a.btn.ghost:hover{background:var(--mvec-navy-tint);border-color:#0000}button.danger,a.btn.danger{background:var(--mvec-surface);color:var(--mvec-danger);border-color:var(--mvec-danger-line)}button.danger:hover,a.btn.danger:hover{background:var(--mvec-danger-tint);border-color:var(--mvec-danger)}button.accent,a.btn.accent{background:var(--mvec-teal);border-color:var(--mvec-teal)}button.accent:hover,a.btn.accent:hover{background:var(--mvec-navy);border-color:var(--mvec-navy)}.btn-lg,button.btn-lg,a.btn.btn-lg{border-radius:var(--mvec-radius);min-height:56px;padding:14px 22px;font-size:1.08rem}.btn-block{width:100%}.btn-row{flex-wrap:wrap;gap:8px;display:flex}.btn-row>*{flex:auto}.btn-row form{display:flex}.btn-row form>button{flex:1}.spinner{border:2px solid;border-right-color:#0000;border-radius:50%;flex:none;width:1.1em;height:1.1em;animation:.7s linear infinite mvec-spin}label{color:var(--mvec-ink);font-size:.9rem;font-weight:600}.field{flex-direction:column;gap:6px;display:flex}input,select{font:inherit;border:1px solid var(--mvec-line-strong);border-radius:var(--mvec-radius-sm);background:var(--mvec-surface);width:100%;min-height:50px;color:inherit;transition:border-color var(--mvec-dur) var(--mvec-ease), box-shadow var(--mvec-dur) var(--mvec-ease);padding:10px 14px}input::placeholder{color:var(--mvec-muted);opacity:.8}input:focus-visible,select:focus-visible{border-color:var(--mvec-sky);box-shadow:0 0 0 4px var(--mvec-sky-tint);border-radius:var(--mvec-radius-sm)}input[aria-invalid=true]{border-color:var(--mvec-danger)}.otp-input{letter-spacing:.45em;text-align:center;min-height:64px;color:var(--mvec-navy-strong);padding-left:calc(14px + .45em);font-size:1.9rem;font-weight:700}.input-icon{position:relative}.input-icon .icon{color:var(--mvec-muted);pointer-events:none;position:absolute;top:50%;left:14px;transform:translateY(-50%)}.input-icon input{padding-left:44px}.badge{background:var(--mvec-surface-2);color:var(--mvec-muted);border:1px solid var(--mvec-line);white-space:nowrap;border-radius:999px;align-items:center;gap:6px;padding:3px 10px;font-size:.8rem;font-weight:600;line-height:1.5;display:inline-flex}.badges{flex-wrap:wrap;flex:none;justify-content:flex-end;gap:4px;max-width:50%;display:flex}.badge.ok{background:var(--mvec-ok-tint);color:var(--mvec-ok-ink);border-color:var(--mvec-ok-line)}.badge.warn{background:var(--mvec-warn-tint);color:var(--mvec-warn-ink);border-color:var(--mvec-warn-line)}.badge.danger{background:var(--mvec-danger-tint);color:var(--mvec-danger);border-color:var(--mvec-danger-line)}.badge.info{background:var(--mvec-sky-tint);color:var(--mvec-navy);border-color:var(--mvec-line)}.badge.live:before{content:"";background:var(--mvec-ok);border-radius:50%;width:8px;height:8px;animation:1.6s ease-out infinite mvec-pulse}.alert{border-radius:var(--mvec-radius);border:1px solid var(--mvec-line);background:var(--mvec-surface);animation:mvec-rise var(--mvec-dur) var(--mvec-ease);align-items:flex-start;gap:12px;padding:14px 16px;display:flex}.alert>.icon{width:22px;height:22px;margin-top:1px}.alert .alert-body{flex-direction:column;flex:1;gap:4px;min-width:0;display:flex}.alert .alert-title{font-weight:700}.alert.ok{background:var(--mvec-ok-tint);border-color:var(--mvec-ok-line);color:var(--mvec-ok-ink)}.alert.warn{background:var(--mvec-warn-tint);border-color:var(--mvec-warn-line);color:var(--mvec-warn-ink)}.alert.danger{background:var(--mvec-danger-tint);border-color:var(--mvec-danger-line);color:var(--mvec-danger)}.alert.info{background:var(--mvec-sky-tint);border-color:var(--mvec-line);color:var(--mvec-navy-strong)}.alert .btn-row{margin-top:8px}.list>li+li,.list>a+a,.list>div+div{border-top:1px solid var(--mvec-line)}.list-row{align-items:center;gap:12px;min-height:60px;padding:12px 18px;display:flex}a.list-row{color:inherit;transition:background-color var(--mvec-dur) var(--mvec-ease);text-decoration:none}a.list-row:hover{background:var(--mvec-surface-2)}a.list-row:active{background:var(--mvec-tint)}.list-row 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var(--mvec-skeleton-shine) 50%, var(--mvec-skeleton) 100%);background-size:200% 100%;border-radius:8px;min-height:1em;animation:1.3s ease-in-out infinite mvec-shimmer}.hello{align-items:center;gap:14px;display:flex}.hello .page-head{min-width:0}.hello .avatar{background:var(--mvec-navy);width:52px;height:52px;color:var(--mvec-navy-ink);font-size:1.1rem}.action-tile{border-radius:var(--mvec-radius);background:var(--mvec-navy);color:var(--mvec-navy-ink);box-shadow:var(--mvec-shadow);transition:transform .12s var(--mvec-ease), background-color var(--mvec-dur) var(--mvec-ease);align-items:center;gap:14px;padding:18px;text-decoration:none;display:flex}.action-tile:hover{background:var(--mvec-navy-strong)}.action-tile:active{transform:scale(.98)}.action-tile.alt{background:var(--mvec-surface);color:var(--mvec-ink);border:1px solid var(--mvec-line);box-shadow:var(--mvec-shadow-sm)}.action-tile.alt:hover{background:var(--mvec-surface-2)}.action-tile .tile-icon{background:var(--mvec-mint);width:48px;height:48px;color:var(--mvec-navy-ink);border-radius:12px;flex:none;place-items:center;display:grid}.action-tile.alt .tile-icon{background:var(--mvec-tint);color:var(--mvec-teal)}.action-tile .tile-icon .icon{width:26px;height:26px}.action-tile .grow{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.action-tile .tile-title{font-size:1.08rem;font-weight:700}.action-tile .tile-sub{opacity:.85;font-size:.88rem}.tiles{gap:12px;display:grid}.steps-howto{counter-reset:step;flex-direction:column;gap:10px;display:flex}.steps-howto li{align-items:flex-start;gap:12px;display:flex}.steps-howto li:before{counter-increment:step;content:counter(step);background:var(--mvec-tint);width:28px;height:28px;color:var(--mvec-teal);border-radius:50%;flex:none;place-items:center;font-size:.9rem;font-weight:700;display:grid}.auth-card{gap:16px;padding:22px}.stepper{color:var(--mvec-muted);align-items:center;gap:8px;font-size:.82rem;font-weight:600;display:flex}.stepper span{align-items:center;gap:6px;display:inline-flex}.stepper span:before{content:attr(data-n);background:var(--mvec-tint);width:24px;height:24px;color:var(--mvec-teal);transition:background-color var(--mvec-dur) var(--mvec-ease);border-radius:50%;place-items:center;font-size:.78rem;display:grid}.stepper span[aria-current=step]{color:var(--mvec-navy-strong)}.stepper span[aria-current=step]:before{background:var(--mvec-navy);color:var(--mvec-navy-ink)}.stepper hr{border:0;border-top:2px solid var(--mvec-line);flex:1;min-width:16px;margin:0}.fade-in{animation:mvec-rise .22s var(--mvec-ease)}.date-nav{align-items:center;gap:8px;display:flex}.checkpoint{flex-direction:column;gap:12px;padding:14px 18px;display:flex}.checkpoint+.checkpoint{border-top:1px solid var(--mvec-line)}.checkpoint .cp-head{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:8px;display:flex}.checkpoint .cp-time{color:var(--mvec-navy-strong);font-size:1.15rem;font-weight:700}.checkpoint.is-open{background:var(--mvec-ok-tint)}.field-note{color:var(--mvec-teal);background:var(--mvec-tint);align-items:center;gap:10px;padding:14px 18px;font-weight:600;display:flex}.roster-summary{flex-wrap:wrap;justify-content:space-between;align-items:flex-end;gap:12px;display:flex}.big-ratio{color:var(--mvec-navy-strong);font-size:2.6rem;font-weight:700;line-height:1}.big-ratio small{color:var(--mvec-muted);font-size:1.2rem;font-weight:600}.checkin-card{text-align:center;align-items:stretch;gap:16px;padding:24px 20px}.checkin-card .class-name{color:var(--mvec-muted);font-size:1.05rem}.checkin-card .checkpoint-name{color:var(--mvec-navy-strong);font-size:1.6rem;font-weight:700;line-height:1.2}.success{text-align:center;animation:mvec-rise .26s var(--mvec-ease);align-items:center;gap:14px;padding:28px 20px}.success h1{color:var(--mvec-ok-ink)}.tick{width:88px;height:88px}.tick circle{fill:var(--mvec-ok-tint);stroke:var(--mvec-ok);stroke-width:3px;stroke-dasharray:252;stroke-dashoffset:252px;animation:mvec-draw .5s var(--mvec-ease) forwards}.tick path{fill:none;stroke:var(--mvec-ok);stroke-width:5px;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:60;stroke-dashoffset:60px;animation:mvec-draw .36s .38s var(--mvec-ease) forwards}.kv{text-align:left;background:var(--mvec-surface-2);border-radius:var(--mvec-radius-sm);border:1px solid var(--mvec-line);grid-template-columns:auto 1fr;gap:8px 16px;width:100%;padding:14px 16px;display:grid}.kv dt{color:var(--mvec-muted);font-size:.9rem}.kv dd{text-align:right;margin:0;font-weight:600}.student-name{color:var(--mvec-navy-strong);font-size:1.25rem;font-weight:700}.server-time{color:var(--mvec-navy-strong);letter-spacing:.02em;font-size:2rem;font-weight:700}main.projector{text-align:center;align-items:center;gap:14px;max-width:1200px;padding-top:16px}.projector-head{flex-direction:column;align-items:center;gap:4px;display:flex}.projector-head h1{font-size:clamp(1.5rem,3.4vw,2.4rem)}.projector-head .meta{color:var(--mvec-muted);font-size:clamp(1rem,2vw,1.35rem)}.projector-head .meta b{color:var(--mvec-teal)}.qr-stage{place-items:center;gap:20px;width:100%;display:grid}.qr-frame{aspect-ratio:1;background:var(--mvec-surface);border-radius:var(--mvec-radius-lg);width:min(86vw,62vh,620px);box-shadow:var(--mvec-shadow-lg);border:1px solid var(--mvec-line);place-items:center;padding:14px;display:grid}.qr-frame 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.stat-value{color:var(--mvec-danger)}.miss-list{flex-direction:column;display:flex}.miss{grid-template-columns:auto minmax(0,1fr);grid-template-areas:"date what""date seen""date hours";align-items:center;gap:4px 12px;padding:14px 18px;display:grid}.miss+.miss{border-top:1px solid var(--mvec-line)}.miss .date-box{text-align:center;background:var(--mvec-danger-tint);width:52px;color:var(--mvec-danger);border-radius:12px;grid-area:date;align-self:start;padding:6px 0;line-height:1.1}.miss .date-box b{font-size:1.25rem;display:block}.miss .date-box span{font-size:.72rem;font-weight:600}.miss .what{grid-area:what;font-weight:600;line-height:1.35}.miss .hours{color:var(--mvec-danger);white-space:nowrap;grid-area:hours;font-weight:700}.miss .seen{color:var(--mvec-muted);grid-area:seen;font-size:.85rem}.miss-total{background:var(--mvec-surface-2);border-top:1px solid var(--mvec-line);justify-content:space-between;gap:12px;padding:14px 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.bi-vi{color:var(--mvec-navy-strong);letter-spacing:.04em;font-size:.92rem}.os-num{background:var(--mvec-navy);width:28px;height:28px;color:var(--mvec-navy-ink);border-radius:50%;flex:none;justify-content:center;align-items:center;font-size:.9rem;font-weight:700;display:inline-flex}.os-row{border-bottom:1px dashed var(--mvec-line);grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:12px;padding:12px 4px;display:grid}.os-row:last-child{border-bottom:0}.os-label{flex-direction:column;gap:4px;min-width:0;display:flex}.os-note{color:var(--mvec-muted);font-size:.8rem}.os-value{border-radius:var(--mvec-radius-sm);background:var(--mvec-surface-2);border:1px solid var(--mvec-line);white-space:nowrap;justify-self:end;align-items:baseline;gap:6px;padding:8px 12px;display:inline-flex}.os-value b{color:var(--mvec-navy-strong);font-variant-numeric:tabular-nums;font-size:1.25rem}.os-value 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var(--mvec-line);border-radius:var(--mvec-radius-sm);background:var(--mvec-surface-2);cursor:pointer;align-items:flex-start;gap:12px;padding:10px 12px;font-weight:400;display:flex}.check-row:has(input:checked){border-color:var(--mvec-teal);background:var(--mvec-tint)}.check-row input{width:20px;height:20px;min-height:20px;accent-color:var(--mvec-navy);flex:none;margin:2px 0 0;padding:0}.check-row>span{flex-direction:column;gap:2px;min-width:0;display:flex}.danger-text,button.ghost.danger-text{color:var(--mvec-danger)}.password-input input{padding-right:52px}.password-input .reveal{border:0;width:44px;min-height:42px;padding:0;position:absolute;top:50%;right:4px;transform:translateY(-50%)}.password-input .reveal .icon{pointer-events:none;color:var(--mvec-muted);position:static;transform:none}.student-row{grid-template-columns:minmax(0,1fr);gap:10px;padding:14px 18px;display:grid}.student-row+.student-row{border-top:1px solid var(--mvec-line)}.student-row.inactive{background:var(--mvec-surface-2)}.student-main{color:inherit;align-items:center;gap:12px;min-width:0;text-decoration:none;display:flex}.student-main .grow{flex-direction:column;min-width:0;display:flex}.student-main .title{color:var(--mvec-navy-strong);overflow-wrap:anywhere;font-weight:700}.student-sum{flex-direction:column;gap:6px;min-width:0;display:flex}.sum-line{flex-wrap:wrap;justify-content:space-between;gap:8px;font-size:.9rem;display:flex}.sum-line b{color:var(--mvec-navy-strong)}.student-sum .meter{height:8px}.student-sum .badges{align-items:center}.student-actions{gap:8px;display:flex}.student-actions .btn{flex:1;min-height:40px;padding:6px 12px;font-size:.9rem}.admin-grid{grid-template-columns:minmax(0,1fr);align-items:start;gap:16px;display:grid}.staff-card{gap:14px}.staff-card form{flex-direction:column;gap:12px;display:flex}.staff-card .badges{justify-content:flex-end}.staff-card 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