:root{--brand:#4a3fd6;--brand2:#2b2394;--brand-s:#ece9ff;--teal:#0b9a86;--teal-s:#e3f6f2;--rose:#e8336a;--gold:#ffcf3f;--ink:#14203a;--muted:#56627d;--line:#dcd9f2;--bg:#eef0fa;--card:#ffffff;--field:#f7f7fd;--tabs:#eceaf8;--good:#2b8a3e;--bad:#c92a2a;--shadow:0 24px 50px -32px rgba(20,32,90,.55),0 2px 6px -2px rgba(20,32,90,.08);--f-display:"Lexend","Trebuchet MS",system-ui,sans-serif;--f-body:"Nunito Sans",system-ui,sans-serif;color-scheme:light}
@media (prefers-color-scheme:dark){:root{--brand:#8f86ff;--brand2:#c9c3ff;--brand-s:rgba(143,134,255,.16);--teal:#3fd6bd;--teal-s:rgba(63,214,189,.14);--ink:#eaf0ff;--muted:#a8b4cf;--line:rgba(234,240,255,.13);--bg:#0b1122;--card:#141c31;--field:#0f1628;--tabs:#0f1628;--good:#5ee089;--bad:#ff7b7f;--shadow:0 24px 50px -28px rgba(0,0,0,.8);color-scheme:dark}}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:var(--f-body);color:var(--ink);background:var(--bg);line-height:1.55;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:var(--brand);font-weight:700}
/* top bar */
.ka-nav{position:sticky;top:0;z-index:20;background:#101a46;border-bottom:1px solid rgba(255,255,255,.08)}
.ka-nav .in{max-width:1100px;margin:0 auto;padding:12px 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.ka-logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:#fff}
.ka-logo:before{content:"";width:38px;height:38px;border-radius:12px;flex:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M2 12h4l3-7 4 14 3-7h6'/%3E%3C/svg%3E") center/22px no-repeat,linear-gradient(135deg,#6c5ce7,#0b9a86);box-shadow:0 6px 16px -6px rgba(108,92,231,.9)}
.ka-logo b{font:900 1.2rem var(--f-display);letter-spacing:-.01em}.ka-logo b em{font-style:normal;color:#9fe8da}
.ka-logo small{display:block;font:800 .6rem var(--f-body);letter-spacing:.16em;text-transform:uppercase;color:#b9c2ea}
.ka-links{display:flex;gap:8px;flex-wrap:wrap}
.ka-links a{font:800 .86rem var(--f-display);text-decoration:none;border:1.5px solid rgba(255,255,255,.28);border-radius:999px;padding:7px 15px;color:#fff;background:rgba(255,255,255,.06)}
.ka-links a:hover{background:rgba(255,255,255,.16)}
/* hero */
.ka-hero{position:relative;overflow:hidden;color:#fff;padding:40px 16px 96px;background:radial-gradient(900px 340px at 85% -10%,rgba(47,211,184,.45),transparent 60%),radial-gradient(700px 320px at 5% 110%,rgba(232,51,106,.35),transparent 60%),linear-gradient(120deg,#101a46,#2b2394 55%,#0b6f63)}
.ka-hero:after{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1.2px);background-size:22px 22px;mask-image:linear-gradient(180deg,#000,transparent 85%);-webkit-mask-image:linear-gradient(180deg,#000,transparent 85%);pointer-events:none}
.ka-hero .in{position:relative;z-index:1;max-width:1100px;margin:0 auto}
.ka-hero .eb{display:inline-block;font:800 .72rem var(--f-display);letter-spacing:.16em;text-transform:uppercase;color:#14205a;background:var(--gold);border-radius:999px;padding:4px 12px}
.ka-hero h1{font:900 clamp(1.9rem,4.6vw,2.9rem)/1.08 var(--f-display);margin:12px 0 8px;letter-spacing:-.02em}
.ka-hero p{margin:0;font-size:1.08rem;color:#dfe4ff;max-width:640px}
.ka-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.ka-chips span{font:700 .84rem var(--f-body);color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);border-radius:999px;padding:6px 12px}
/* layout */
.ka-main{position:relative;z-index:2;max-width:1100px;margin:-60px auto 48px;padding:0 16px}
.ka-card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:24px;box-shadow:var(--shadow);margin-bottom:18px}
.ka-card h2{font:800 1.25rem var(--f-display);margin:0 0 12px}
.ka-narrow{max-width:460px;margin-left:auto;margin-right:auto}
.ka-split{display:grid;grid-template-columns:1.05fr 1fr;max-width:940px;margin:0 auto 18px;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.ka-split>.ka-card{margin:0;border:0;border-radius:0;box-shadow:none}
.ka-side{background:linear-gradient(160deg,#1d1872,#2b2394 45%,#0b6f63);color:#fff;padding:30px 28px;display:flex;flex-direction:column;gap:14px}
.ka-side h2{font:800 1.35rem var(--f-display);margin:0}.ka-side p{margin:0;color:#dfe4ff}
.ka-side ul{list-style:none;margin:4px 0 0;padding:0;display:grid;gap:12px}
.ka-side li{display:flex;gap:12px;align-items:flex-start;font-weight:600;color:#eef1ff}
.ka-side li i{flex:none;font-style:normal;width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:rgba(255,255,255,.14);font-size:1.05rem}
.ka-side li b{display:block;color:#fff}
.ka-side .ka-quote{margin-top:auto;border-top:1px solid rgba(255,255,255,.2);padding-top:14px;font-size:.9rem;color:#cfd6ff}
/* tabs + forms */
.ka-tabs{display:flex;gap:6px;background:var(--tabs);border:1px solid var(--line);border-radius:14px;padding:4px;margin-bottom:18px}
.ka-tabs button{flex:1;border:0;background:none;border-radius:10px;padding:10px;font:800 .92rem var(--f-display);color:var(--muted);cursor:pointer}
.ka-tabs button.on{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(74,63,214,.9)}
label.ka-f{display:block;font-weight:800;font-size:.88rem;margin:12px 0 5px;color:var(--ink)}
.ka-in,select.ka-in{width:100%;font:600 1rem var(--f-body);border:1.5px solid var(--line);border-radius:12px;padding:11px 13px;background:var(--field);color:var(--ink);transition:border-color .15s,box-shadow .15s}
.ka-in::placeholder{color:var(--muted);opacity:.8}
.ka-in:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px var(--brand-s)}
.ka-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:2px solid var(--brand);background:transparent;color:var(--brand);font:800 .95rem var(--f-display);border-radius:12px;padding:11px 16px;cursor:pointer;text-decoration:none;transition:transform .12s,box-shadow .12s,background .12s}
.ka-btn:hover{transform:translateY(-1px);box-shadow:0 10px 20px -14px rgba(74,63,214,.9)}
.ka-btn.pri{background:linear-gradient(135deg,#5a4ff0,#3a2fc0);border-color:transparent;color:#fff}
.ka-btn.wa{background:#1fae5b;border-color:transparent;color:#fff}
.ka-btn.red{border-color:var(--bad);color:var(--bad)}.ka-btn.sm{padding:6px 10px;font-size:.82rem;border-radius:10px}
.ka-btn:disabled{opacity:.55;cursor:wait;transform:none}
.ka-full{width:100%;margin-top:16px}
.ka-msg{min-height:1.3em;font-weight:800;font-size:.9rem;margin-top:10px}.ka-msg.err{color:var(--bad)}.ka-msg.ok{color:var(--good)}
.ka-mini{font-size:.86rem;color:var(--muted)}
.ka-linkbtn{border:0;background:none;color:var(--brand);font-weight:800;cursor:pointer;padding:0;font-size:.88rem}
.ka-or{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:.8rem;font-weight:800;margin:16px 0 4px;text-transform:uppercase;letter-spacing:.1em}.ka-or:before,.ka-or:after{content:"";flex:1;height:1px;background:var(--line)}
.ka-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.ka-pill{display:inline-block;font:800 .72rem var(--f-display);letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:3px 10px;background:var(--brand-s);color:var(--brand2)}
.ka-pill.admin{background:rgba(232,51,106,.14);color:#e8336a}.ka-pill.teacher{background:var(--teal-s);color:var(--teal)}
.ka-list{list-style:none;padding:0;margin:0}.ka-list li{display:flex;justify-content:space-between;align-items:center;gap:10px;border-top:1px solid var(--line);padding:11px 0}
.ka-list li:first-child{border-top:0}
.ka-table{width:100%;border-collapse:collapse;font-size:.92rem}.ka-table th,.ka-table td{border-bottom:1px solid var(--line);padding:10px 8px;text-align:left;vertical-align:top}
.ka-table th{font:800 .76rem var(--f-display);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);background:var(--field)}
.ka-tags{display:flex;flex-wrap:wrap;gap:5px}.ka-tag{display:inline-flex;align-items:center;gap:4px;background:var(--brand-s);color:var(--ink);border-radius:999px;padding:3px 4px 3px 10px;font-size:.8rem;font-weight:800}
.ka-tag button{border:0;background:var(--card);border-radius:999px;width:20px;height:20px;cursor:pointer;color:var(--bad);font-weight:900;line-height:1}
.ka-tag.exp{opacity:.55;text-decoration:line-through}
.ka-row{display:flex;gap:8px;flex-wrap:wrap;align-items:end}.ka-row>*{flex:1;min-width:150px}
.ka-scroll{overflow-x:auto}
.ka-center{text-align:center}
code{font-family:ui-monospace,Menlo,monospace;background:var(--brand-s);color:var(--brand2);border-radius:6px;padding:1px 6px;font-size:.88em}
details{border-top:1px solid var(--line);padding:12px 0}details summary{cursor:pointer;font-family:var(--f-display)}details p{color:var(--muted);margin:8px 0 0}
.ka-foot{text-align:center;color:var(--muted);font-size:.84rem;padding:0 16px 30px}
@media(max-width:820px){.ka-split{grid-template-columns:1fr}.ka-side{order:2;padding:24px 20px}.ka-side .ka-quote{display:none}}
@media(max-width:560px){.ka-links{flex-wrap:nowrap;gap:6px}.ka-links a{padding:6px 10px;font-size:.78rem;white-space:nowrap}.ka-logo b{font-size:1.05rem}.ka-card{padding:18px}.ka-hero{padding:28px 16px 84px}.ka-logo small{display:none}}

.ka-logo{background:none!important;padding-left:0!important}.ka-logo::before,.ka-logo::after{display:none!important}.ka-logo .mh-logo{color:inherit}
.ka-logo .mh-wm b{font:800 22px/1 Inter,'Segoe UI',Arial,sans-serif!important;color:#fff!important;letter-spacing:-.4px}
.ka-logo .mh-wm b i{color:#b7b0ff}
.ka-logo .mh-wm small{display:block!important;font:600 12.5px/1 Inter,'Segoe UI',Arial,sans-serif!important;letter-spacing:.1px!important;text-transform:none!important;color:#d6d3f0!important}
.ka-logo .mh-wm small em{color:#9fe8da!important;font-weight:800}