/* GCM UPMARK — dark, sidebar-first design. Teacher space = lime accent, Admin space = violet accent. */
:root{color-scheme:dark;--bg:#090b0e;--side:#0d1014;--card:#13171c;--card2:#191e25;--ink:#f1f4f7;--mute:#8a94a1;--line:#232932;
--bad:#ff7070;--badbg:#2b1618;--ok:#8be04e;--warn:#f5b84a;--side-w:0px;--shadow:0 1px 0 rgba(255,255,255,.03) inset}
.sp-teacher{--brand:#b6f23a;--brand-ink:#0c1402;--soft:#1b2410;--glow:rgba(182,242,58,.12)}
.sp-admin{--brand:#a999ff;--brand-ink:#0d0a24;--soft:#1e1b3b;--glow:rgba(169,153,255,.16)}
@media(min-width:900px){:root{--side-w:264px}}
*{box-sizing:border-box}html,body{margin:0}
body{background:var(--bg);color:var(--ink);font:15px/1.45 "Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-tap-highlight-color:transparent}
button{font:inherit;color:inherit;cursor:pointer}a{color:inherit}
h1,h2,h3{margin:0}.mute{color:var(--mute)}.small{font-size:.85rem}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.row.sp{justify-content:space-between}.grow{flex:1;min-width:0}
.ic{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
/* ---- shell ---- */
.app{display:grid;grid-template-columns:minmax(0,1fr);min-height:100vh}
.app>main{grid-column:1;min-width:0}
.side{position:fixed;inset:0 auto 0 0;width:264px;z-index:60;background:var(--side);border-right:1px solid var(--line);display:flex;flex-direction:column;padding:18px 14px calc(14px + env(safe-area-inset-bottom));transform:translateX(-100%);transition:transform .2s;overflow-y:auto}
.app.open .side{transform:none}.scrim{display:none}.app.open .scrim{display:block;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:55}
@media(min-width:900px){.app{grid-template-columns:264px minmax(0,1fr)}.app>main{grid-column:2}.side{transform:none}.app.open .scrim{display:none}.menu-btn{display:none!important}.mbrand{display:none!important}}
.brand{display:flex;gap:12px;align-items:center;padding:4px 8px 16px}
.logo{width:42px;height:42px;border-radius:13px;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:1.05rem;letter-spacing:-.02em}
.brand b{display:block;font-size:1.05rem;letter-spacing:.02em}.brand small{display:block;letter-spacing:.2em;color:var(--mute);font-size:.66rem;margin-top:2px}
.navh{letter-spacing:.2em;font-size:.68rem;color:var(--mute);margin:20px 12px 8px;font-weight:600}
.nav{display:flex;align-items:center;gap:12px;width:100%;border:0;background:transparent;color:var(--mute);padding:11px 12px;border-radius:12px;font-weight:600;text-align:left}
.nav:hover{background:var(--card);color:var(--ink)}.nav.on{background:var(--card2);color:var(--ink)}.nav.on .ic{color:var(--brand)}
.nav .cnt{margin-left:auto;background:var(--brand);color:var(--brand-ink);border-radius:999px;font-size:.72rem;padding:1px 8px;font-weight:800}
.me{margin-top:auto;display:flex;gap:10px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--brand),#7c5cff);color:#0b0b0b;display:grid;place-items:center;font-weight:800;flex:none}
.me .nm{font-weight:700;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.me small{color:var(--mute);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.icon-btn{border:1px solid var(--line);background:var(--card);border-radius:10px;width:38px;height:38px;display:grid;place-items:center;flex:none;color:var(--ink)}
.top{position:sticky;top:0;z-index:20;background:rgba(9,11,14,.88);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);display:flex;gap:14px;align-items:center;padding:12px 22px}
.top h1{font-size:1.2rem;line-height:1.2}.top .sub{color:var(--mute);font-size:.82rem}.mbrand{font-weight:800;letter-spacing:.04em;font-size:.85rem;color:var(--brand)}
.search{flex:1;max-width:520px;position:relative;margin-left:auto}.search .ic{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--mute);width:18px;height:18px}
.search input{padding-left:42px;border-radius:14px;min-height:44px}
.cta{border:0;border-radius:14px;background:var(--brand);color:var(--brand-ink);font-weight:800;padding:11px 18px;display:flex;gap:8px;align-items:center;white-space:nowrap}.cta[disabled]{opacity:.45;cursor:not-allowed}
.page{padding:22px;max-width:1240px;margin:0 auto}
@media(max-width:700px){.page{padding:14px}.top{padding:10px 12px;gap:8px}.search{display:none}.cta .lbl{display:none}.cta{padding:10px 12px;margin-left:auto}}
/* ---- content blocks ---- */
.hero{border-radius:22px;padding:26px;border:1px solid var(--line);background:radial-gradient(520px 220px at 88% 0%,var(--glow),transparent 70%),linear-gradient(120deg,var(--card),var(--card2));display:flex;gap:20px;justify-content:space-between;flex-wrap:wrap;align-items:center;margin-bottom:16px}
.eyebrow{letter-spacing:.26em;font-size:.74rem;color:var(--brand);font-weight:700}.hero h2{font-size:2.1rem;margin:6px 0 4px;letter-spacing:-.02em}.hero p{margin:0;color:var(--mute);max-width:44ch}
.hero .acts{display:flex;gap:10px;flex-wrap:wrap}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px}.stat .si{width:40px;height:40px;border-radius:12px;background:var(--soft);color:var(--brand);display:grid;place-items:center}
.stat b{display:block;font-size:2rem;margin-top:12px;line-height:1.1;letter-spacing:-.02em}.stat .l{letter-spacing:.14em;font-size:.7rem;color:var(--mute);text-transform:uppercase;font-weight:600}.stat .d{color:var(--mute);font-size:.8rem;margin-top:2px}
.cols{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:16px;align-items:start}@media(max-width:1000px){.cols{grid-template-columns:minmax(0,1fr)}}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px;margin:0 0 16px;box-shadow:var(--shadow)}.card h3{font-size:1.05rem;margin-bottom:10px}
.card.accent{border-left:3px solid var(--brand)}
.li{display:flex;gap:12px;align-items:center;justify-content:space-between;padding:12px 0;border-top:1px solid var(--line);flex-wrap:wrap}.li:first-of-type{border-top:0}
.empty{border:1.5px dashed var(--line);border-radius:14px;padding:26px;text-align:center;color:var(--mute)}
.banner{border-radius:12px;padding:12px 14px;margin:12px 0;background:var(--soft);border:1px solid var(--line)}.banner.bad{background:var(--badbg);color:var(--bad);border-color:transparent}
/* ---- controls ---- */
.pills{display:flex;flex-wrap:wrap;gap:10px;margin:14px 0}
.pill{border:1.5px solid var(--line);background:var(--card);border-radius:999px;padding:13px 22px;font-size:1.05rem;font-weight:600;min-height:50px;color:var(--ink)}
.pill:hover,.pill:focus-visible{border-color:var(--brand);outline:none}.pill.on{background:var(--brand);border-color:var(--brand);color:var(--brand-ink)}
.pill.sm{padding:8px 14px;min-height:38px;font-size:.9rem}.pill[disabled]{opacity:.45;cursor:not-allowed}
.btn{border:0;border-radius:12px;padding:12px 18px;font-weight:700;background:var(--brand);color:var(--brand-ink);min-height:46px}
.btn.ghost{background:transparent;border:1.5px solid var(--line);color:var(--ink)}.btn.danger{background:var(--bad);color:#1a0505}.btn[disabled]{opacity:.45;cursor:not-allowed}.btn.sm{padding:7px 12px;min-height:36px;font-size:.88rem}
input,select,textarea{font:inherit;color:var(--ink);background:var(--bg);border:1.5px solid var(--line);border-radius:12px;padding:11px 12px;width:100%;min-height:46px}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--brand)}select{appearance:auto}
label.f{display:block;font-weight:600;margin:12px 0 4px}.err-msg{color:var(--bad);font-weight:600;min-height:1.3em;font-size:.9rem}
.back{background:none;border:0;color:var(--mute);padding:6px 0;font-weight:600}
.crumbs{display:flex;flex-wrap:wrap;gap:6px;margin:6px 0}.crumb{background:var(--soft);color:var(--brand);border-radius:999px;padding:4px 12px;font-size:.82rem;font-weight:700}
.badge{display:inline-block;border-radius:999px;padding:2px 10px;font-size:.76rem;font-weight:700;background:var(--card2);border:1px solid var(--line)}
.badge.red{background:var(--badbg);color:var(--bad);border-color:transparent}.badge.green{color:var(--ok)}.badge.yellow{color:var(--warn)}
.tbl{width:100%;border-collapse:collapse}.tbl th,.tbl td{text-align:left;padding:10px 8px;border-bottom:1px solid var(--line);vertical-align:middle;font-size:.9rem}.tbl th{color:var(--mute);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase}
.tbl tr.click{cursor:pointer}.tbl tr.click:hover td{background:var(--card2)}.tscroll{overflow-x:auto}
.chips{display:flex;flex-wrap:wrap;gap:6px}.chip{border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--card2);font-size:.88rem;color:var(--ink)}.chip.on{background:var(--brand);color:var(--brand-ink);border-color:var(--brand)}
.chip .x{margin-left:6px;opacity:.7;cursor:pointer;border:0;background:none;color:inherit;padding:0}
details{border:1px solid var(--line);border-radius:12px;padding:8px 12px;margin:6px 0;background:var(--card2)}summary{cursor:pointer;font-weight:600}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:10px}
.filters{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px;margin-bottom:14px}
/* ---- login ---- */
.login{min-height:100vh;display:grid;place-items:center;padding:20px;background:radial-gradient(700px 360px at 50% -10%,var(--glow),transparent 70%)}
.login .box{width:100%;max-width:420px}.login .brand{justify-content:center;padding-bottom:22px;flex-direction:column;text-align:center}.login .logo{width:54px;height:54px;font-size:1.3rem}
/* ---- workspace (grading) ---- */
.ctx{position:sticky;top:0;z-index:20;background:var(--card);border-bottom:1px solid var(--line);padding:10px 14px}
.ctx .t{font-weight:700;font-size:.95rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.ctx .p{font-variant-numeric:tabular-nums;font-weight:800;color:var(--brand)}
.seg{display:inline-flex;background:var(--bg);border:1px solid var(--line);border-radius:10px;padding:3px}.seg button{border:0;background:transparent;color:var(--mute);padding:6px 12px;border-radius:8px;font-weight:700}.seg button.on{background:var(--brand);color:var(--brand-ink)}
.toolbar{display:flex;flex-wrap:wrap;gap:8px;padding:10px 14px;background:var(--bg);border-bottom:1px solid var(--line)}
.toolbar input{flex:1;min-width:150px;min-height:42px;padding:8px 12px}.toolbar select{width:auto;min-height:42px;padding:8px}
.sh{display:none}
.deck{max-width:520px;margin:0 auto;padding:14px 14px 340px}
.sc{background:var(--card);border:1.5px solid var(--line);border-radius:20px;padding:20px;text-align:center}
.sc.dim{opacity:.55}.sc .roll{font-size:3rem;font-weight:800;line-height:1}.sc .nm{font-size:1.6rem;font-weight:700;margin:6px 0}.sc .adm{color:var(--mute)}
.field{display:flex;align-items:center;gap:8px;justify-content:center;margin:12px 0}.field .lbl{font-weight:600;min-width:90px;text-align:right}
.box{font-size:2.2rem;font-weight:800;min-width:130px;border:3px solid var(--line);border-radius:14px;padding:8px 14px;background:var(--bg);font-variant-numeric:tabular-nums;text-align:center}
.box.act{border-color:var(--brand)}.box.err{border-color:var(--bad);background:var(--badbg);color:var(--bad)}.box .den{font-size:1rem;color:var(--mute);font-weight:600}
.qs{display:flex;gap:10px;justify-content:center;margin-top:10px}.qs .pill{padding:12px 26px}
.pad{position:fixed;left:var(--side-w);right:0;bottom:0;z-index:30;background:var(--card);border-top:1px solid var(--line);padding:10px 12px calc(10px + env(safe-area-inset-bottom))}
.pad .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;max-width:420px;margin:0 auto}
.pad button.k{height:56px;border-radius:12px;border:1px solid var(--line);background:var(--bg);font-size:1.5rem;font-weight:700}.pad button.k:active{background:var(--soft)}
.pad .next{max-width:420px;margin:8px auto 0;display:flex;gap:8px}.pad .next .btn{flex:1;height:54px}
.foot{position:fixed;bottom:0;left:var(--side-w);right:0;z-index:30;background:var(--card);border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom));display:flex;gap:10px;justify-content:center}
.tw{overflow:auto;padding:0 8px 100px}table.t{border-collapse:collapse;width:100%;min-width:600px}
.t th{position:sticky;top:0;background:var(--bg);text-align:left;font-size:.75rem;color:var(--mute);padding:8px;border-bottom:2px solid var(--line);white-space:nowrap;letter-spacing:.06em}
.t td{padding:4px 8px;border-bottom:1px solid var(--line)}.t tr.dim td{opacity:.5}.t tr.miss td{background:var(--badbg)}
.t input.sc-in{width:84px;min-height:40px;padding:6px 8px;text-align:center;font-weight:700;font-size:1.05rem}.t input.bad{border-color:var(--bad);background:var(--badbg)}
.t .st{border:1.5px solid var(--line);background:var(--bg);border-radius:8px;padding:6px 10px;font-weight:700}.t .st.on{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.t tr.click{cursor:pointer}.t tr.click:hover td{background:var(--card2)}
/* ---- overlays ---- */
.ov{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:80;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:var(--card);border:1px solid var(--line);width:100%;max-width:560px;border-radius:20px 20px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));max-height:88vh;overflow:auto}
@media(min-width:700px){.ov{align-items:center}.sheet{border-radius:20px}}
.tl{border-left:3px solid var(--line);margin-left:8px;padding-left:16px}.tl .ev{position:relative;margin:0 0 16px}.tl .ev:before{content:"";position:absolute;left:-23px;top:5px;width:11px;height:11px;border-radius:50%;background:var(--brand)}
#toast{position:fixed;left:50%;transform:translateX(-50%);bottom:90px;background:#e9edf1;color:#0b0d10;padding:10px 16px;border-radius:12px;z-index:99;opacity:0;pointer-events:none;transition:opacity .2s;max-width:90vw;font-weight:600}#toast.show{opacity:1}#toast.bad{background:var(--bad);color:#1a0505}
@media(max-width:600px){
 .lg{display:none}.sh{display:inline}
 .ctx{padding:8px 10px}.ctx .t{font-size:.9rem}.ctx .p{font-size:.9rem}.ctx .pill.sm{padding:6px 10px;min-height:36px}.seg button{padding:5px 10px}
 .toolbar{padding:6px 10px;flex-wrap:nowrap;overflow-x:auto;gap:6px}.toolbar input{min-height:38px;min-width:0;padding:6px 10px}.toolbar select{min-height:38px;max-width:96px}.toolbar .pill{white-space:nowrap}
 .deck{padding:8px 10px 300px}.sc{padding:10px 12px;border-radius:16px}.sc .roll{font-size:2.2rem}.sc .nm{font-size:1.3rem;margin:2px 0}.box{font-size:1.8rem;min-width:110px;padding:4px 12px}.field{margin:8px 0}
 .qs{margin-top:6px}.qs .pill{padding:8px 22px;min-height:44px}
 .pad{padding:8px 10px calc(8px + env(safe-area-inset-bottom))}.pad .grid{gap:6px}.pad button.k{height:46px;font-size:1.3rem}.pad .next{margin-top:6px}.pad .next .btn{height:48px}
 .t th,.t td{padding:4px 6px}.t input.sc-in{width:68px}.hero h2{font-size:1.6rem}
}

/* ---- login (professional two-panel) ---- */
.lgn{min-height:100vh;display:grid;grid-template-columns:1.05fr 1fr;background:var(--bg)}
.lg-hero{display:flex;flex-direction:column;justify-content:center;gap:14px;padding:56px 64px;background:radial-gradient(900px 480px at 20% 0%,var(--glow),transparent 70%),var(--side);border-right:1px solid var(--line)}
.lg-mark{width:56px;height:56px;border-radius:16px;background:var(--brand);color:var(--brand-ink);display:grid;place-items:center;font-weight:800;font-size:1.3rem}
.lg-hero h1{font-size:2.4rem;letter-spacing:-.02em;margin:6px 0 0}.lg-tag{color:var(--mute);font-size:1.05rem;margin:0 0 10px}
.lg-points{list-style:none;margin:10px 0 0;padding:0;display:grid;gap:14px;color:var(--ink)}.lg-points li{display:flex;gap:12px;align-items:center}
.lg-dot{width:8px;height:8px;border-radius:50%;background:var(--brand);flex:none}
.lg-panel{display:flex;flex-direction:column;justify-content:center;align-items:center;padding:32px 24px;gap:18px}
.lg-form{width:100%;max-width:400px;display:flex;flex-direction:column;gap:12px}
.lg-form h2{font-size:1.6rem;margin:0;letter-spacing:-.01em}.lg-sub{color:var(--mute);margin:0 0 6px;line-height:1.5}.lg-sub b{color:var(--ink)}
.lg-label{font-size:.82rem;font-weight:600;color:var(--mute)}
.lg-input{height:52px;font-size:1.05rem;padding:0 16px;border-radius:14px}
.lg-btn{height:52px;border:0;border-radius:14px;background:var(--brand);color:var(--brand-ink);font-weight:800;font-size:1rem;cursor:pointer;margin-top:4px}
.lg-btn:disabled{opacity:.6;cursor:wait}
.lg-help{color:var(--mute);font-size:.85rem;margin:2px 0 0;text-align:center}
.lg-err{min-height:1.1em;color:var(--bad);font-size:.88rem}
.lg-boxes{display:flex;gap:10px;justify-content:space-between}
.lg-box{width:100%;max-width:56px;height:60px;text-align:center;font-size:1.6rem;font-weight:700;padding:0;border-radius:14px}
.lg-box.bad{border-color:var(--bad);animation:lgshake .35s}
@keyframes lgshake{25%{transform:translateX(-5px)}75%{transform:translateX(5px)}}
.lg-dev{background:var(--card2);border:1px dashed var(--line);border-radius:12px;padding:8px 12px;font-size:.85rem;color:var(--mute)}
.lg-row{display:flex;justify-content:space-between;gap:10px;margin-top:2px}
.lg-link{background:none;border:0;color:var(--brand);font-weight:600;cursor:pointer;padding:6px 0;font-size:.9rem}.lg-link:disabled{color:var(--mute);cursor:default}
.lg-foot{color:var(--mute);font-size:.78rem}
@media (max-width:860px){.lgn{grid-template-columns:1fr}.lg-hero{padding:32px 24px 24px;border-right:0;border-bottom:1px solid var(--line);gap:8px}.lg-hero h1{font-size:1.6rem}.lg-points{display:none}.lg-tag{margin:0}.lg-mark{width:44px;height:44px;font-size:1.05rem}.lg-panel{justify-content:flex-start;padding-top:28px}}

/* student report */
.rhead{text-align:center;border-bottom:2px solid currentColor;padding-bottom:10px;margin-bottom:12px}
.rschool{font-size:24px;font-weight:800;letter-spacing:2px}
.rtitle{font-size:15px;font-weight:600;margin-top:2px}
.rper{font-size:12px;opacity:.7}
.rinfo,.rsum{display:flex;flex-wrap:wrap;gap:8px 28px;margin:10px 0}
.rinfo small,.rsum small{display:block;opacity:.65;font-size:11px;text-transform:uppercase;letter-spacing:.5px}
.rsum .big{font-size:24px}
.rtag{display:inline-block;padding:2px 10px;border-radius:12px;font-size:12px;font-weight:700;color:#10150a}
.rbars{display:grid;gap:8px;margin:8px 0}
.rbar{display:grid;grid-template-columns:130px 1fr 52px;gap:10px;align-items:center;font-size:13px}
.rtrack{position:relative;height:14px;background:rgba(128,128,128,.2);border-radius:7px}
.rfill{height:100%;border-radius:7px}
.rcls{position:absolute;top:-3px;width:2px;height:20px;background:currentColor}
.rcard h4{margin:14px 0 6px}
.rsign{display:none;justify-content:space-between;margin-top:48px;font-size:12px}
.rsign div{border-top:1px solid #000;padding-top:4px;width:28%;text-align:center}
@media print{
  .side,.top,.noprint,.toast,.nav{display:none!important}
  body,.app,main,.page{background:#fff!important;color:#000!important;display:block!important;margin:0!important;padding:0!important;height:auto!important;overflow:visible!important}
  .rcard{box-shadow:none!important;border:0!important;background:#fff!important;color:#000!important;page-break-after:always;break-inside:avoid;padding:0!important}
  .rcard:last-child{page-break-after:auto}
  .rsign{display:flex}
  .tbl th,.tbl td{color:#000!important;border-bottom:1px solid #999!important}
  .rtag,.rfill{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  @page{margin:14mm}
}