@font-face{font-family:Montserrat;font-weight:400;font-display:swap;src:url(fonts/montserrat-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:Montserrat;font-weight:500;font-display:swap;src:url(fonts/montserrat-latin-500-normal.woff2) format("woff2")}
@font-face{font-family:Montserrat;font-weight:600;font-display:swap;src:url(fonts/montserrat-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Montserrat;font-weight:700;font-display:swap;src:url(fonts/montserrat-latin-700-normal.woff2) format("woff2")}
@font-face{font-family:Montserrat;font-weight:800;font-display:swap;src:url(fonts/montserrat-latin-800-normal.woff2) format("woff2")}

:root{
  --navy:#070B14;--navy2:#0F1626;--line:#22304D;--blue:#1262E8;--blue-hi:#3D84FF;--blue-ink:#0B4BC2;
  --ink:#0E1424;--body:#3A4459;--mute:#5E6880;--paper:#F4F6FA;--white:#fff;--soft:#C9D2E6;
  --ok:#11823B;--ok-bg:#E6F5EC;--bad:#B42318;--bad-bg:#FDECEA;--warn-bg:#FFF6DB;--warn:#8A5A00;
  --r:16px;--wrap:1120px
}
*{box-sizing:border-box}
html{scroll-padding-top:84px}
body{margin:0;font-family:Montserrat,Arial,sans-serif;font-size:17px;line-height:1.65;color:var(--body);background:var(--white);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--blue-ink)}
a:focus-visible,button:focus-visible,input:focus-visible,label:focus-within{outline:3px solid var(--blue-hi);outline-offset:3px;border-radius:6px}
h1,h2,h3{color:var(--ink);line-height:1.2;margin:0 0 .5em;font-weight:800;letter-spacing:-.01em}
h1{font-size:clamp(30px,5vw,48px)}
h2{font-size:clamp(24px,3.4vw,32px);margin-top:1.6em}
h3{font-size:19px;font-weight:700;margin-top:1.4em}
p{margin:0 0 1em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.narrow{max-width:820px}
.skip{position:absolute;left:-999px;top:8px;background:#fff;color:var(--ink);padding:10px 16px;border-radius:8px;z-index:50}
.skip:focus{left:12px}
.eyebrow{font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--blue-hi);margin:0 0 12px}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--soft);max-width:720px}
.btn{display:inline-block;background:var(--blue);color:#fff;border:0;text-decoration:none;font:700 16px Montserrat,Arial,sans-serif;padding:14px 26px;border-radius:999px;cursor:pointer}
.btn:hover{background:#0f55cc}.btn:disabled{opacity:.6;cursor:wait}
.btn-sm{padding:9px 18px;font-size:14px}

/* header */
.top{position:sticky;top:0;z-index:20;background:rgba(7,11,20,.95);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;gap:20px;min-height:64px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:800;letter-spacing:.05em;text-transform:uppercase;font-size:14px}
.brand b{color:var(--blue-hi)}
.nav{display:flex;gap:18px;margin-left:auto;align-items:center;flex-wrap:wrap}
.nav a{color:var(--soft);text-decoration:none;font-weight:600;font-size:15px}
.nav a:hover,.nav a[aria-current]{color:#fff}
.who{color:#8A96B0;font-size:14px}.who a{font-size:14px}

/* hero */
.hero,.mod-hero{background:radial-gradient(800px 480px at 12% 0%,rgba(18,98,232,.28),transparent 70%),var(--navy);color:var(--soft);padding:56px 0 60px}
.hero h1,.mod-hero h1{color:#fff}
.progress-bar{height:10px;background:var(--navy2);border:1px solid var(--line);border-radius:99px;overflow:hidden;max-width:520px;margin-top:28px}
.progress-bar span{display:block;height:100%;width:0;background:var(--blue-hi);transition:width .4s}
.progress-text{margin-top:10px;color:#fff;font-weight:600}
.player{margin:28px 0 0;border-radius:var(--r);overflow:hidden;background:#000;border:1px solid var(--line);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.player video{display:block;width:100%;height:auto;aspect-ratio:16/9;background:#000}
.video-slot{margin-top:28px;aspect-ratio:16/9;border-radius:var(--r);border:1px dashed var(--line);background:var(--navy2);display:grid;place-items:center;text-align:center}
.video-slot div{display:grid;gap:4px;padding:20px}.video-slot b{color:#fff}.video-slot span{font-size:14px;color:#8A96B0}

/* course list */
.sec{padding:56px 0}.sec.light{background:var(--paper)}
.mods{list-style:none;margin:24px 0 0;padding:0;display:grid;gap:12px}
.mods a{display:grid;grid-template-columns:48px 1fr auto;gap:16px;align-items:center;padding:18px 20px;border:1px solid #E1E6EF;border-radius:var(--r);text-decoration:none;color:var(--body);background:#fff}
.mods a:hover{border-color:var(--blue-hi);box-shadow:0 6px 24px rgba(18,98,232,.08)}
.mnum{width:44px;height:44px;border-radius:50%;background:var(--paper);color:var(--blue);font-weight:800;display:grid;place-items:center;font-size:18px}
.mtxt{display:grid}.mtxt b{color:var(--ink);font-size:17px}.mtxt small{color:var(--mute);font-size:14px}
.mstat{font-size:13px;font-weight:700;color:var(--mute);white-space:nowrap;padding:6px 12px;border-radius:99px;background:var(--paper)}
.mstat.ok{color:var(--ok);background:var(--ok-bg)}.mstat.try{color:var(--warn);background:var(--warn-bg)}
.checklist li{margin-bottom:6px}

/* lesson */
.lesson{padding:28px 20px 20px}
.lesson table{width:100%;border-collapse:collapse;margin:18px 0 24px;font-size:15.5px;display:block;overflow-x:auto}
.lesson th,.lesson td{border-bottom:1px solid #E1E6EF;padding:10px 12px;text-align:left;vertical-align:top}
.lesson thead th{background:var(--paper);color:var(--ink);font-weight:700}
.lesson blockquote{margin:22px 0;padding:16px 20px;border-left:4px solid var(--blue);background:#EEF4FF;border-radius:0 12px 12px 0;color:var(--ink)}
.lesson blockquote p:last-child{margin:0}
.lesson li{margin-bottom:6px}
.tbd{margin:20px 0;padding:14px 18px;border:1px solid #F0D58A;background:var(--warn-bg);border-radius:12px;color:var(--warn);font-size:15px}
.tbd b{display:block;text-transform:uppercase;letter-spacing:.12em;font-size:12px}

/* quiz */
.quiz-sec{background:var(--paper);padding:48px 0;margin-top:32px}
.quiz-sec h2{margin-top:0}
.q{border:1px solid #E1E6EF;background:#fff;border-radius:var(--r);padding:18px 20px;margin:0 0 16px}
.q legend{font-weight:700;color:var(--ink);padding:0;display:flex;gap:10px;float:left;width:100%;margin-bottom:10px}
.q legend+*{clear:both}
.qn{flex:none;width:28px;height:28px;border-radius:50%;background:var(--paper);color:var(--blue);display:grid;place-items:center;font-size:14px}
.q label{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:10px;cursor:pointer}
.q label:hover{background:var(--paper)}
.q input{margin-top:6px;accent-color:var(--blue)}
.q.right{border-color:#9ED5B0}.q.wrong{border-color:#F1A9A2;background:var(--bad-bg)}
.q label.answer{background:var(--ok-bg);font-weight:600}
.explain{margin:10px 0 0;font-size:15px;color:var(--ink)}
.quiz-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap}
.result{margin:0;font-weight:700}.result.pass{color:var(--ok)}.result.fail{color:var(--bad)}
.pager{display:flex;justify-content:space-between;gap:16px;padding:28px 20px 48px;font-weight:700}
.pager a{text-decoration:none}

/* login */
.login{min-height:100vh;display:grid;place-items:center;background:var(--navy);padding:20px}
.login-card{background:#fff;border-radius:20px;padding:36px 30px;max-width:420px;width:100%;text-align:center}
.login-card img{margin:0 auto 12px;background:var(--navy);border-radius:50%;padding:8px}
.login-card h1{font-size:28px}
.login-card form{display:grid;gap:14px;text-align:left;margin-top:18px}
.login-card label{display:grid;gap:6px;font-weight:600;font-size:15px;color:var(--ink)}
.login-card input{font:16px Montserrat,Arial,sans-serif;padding:12px 14px;border:1px solid #C9D2E6;border-radius:10px}
.err{color:var(--bad);font-weight:600;margin:0;min-height:1em}
.small{font-size:14px;color:var(--mute);margin-top:16px}

/* printables + leader */
.dl{list-style:none;padding:0;display:grid;gap:12px}
.dl li{border:1px solid #E1E6EF;border-radius:var(--r);padding:16px 20px;display:grid}
.dl a{font-weight:700;font-size:17px}.dl small{color:var(--mute)}
.table-wrap{overflow-x:auto;margin:20px 0}
.grid{border-collapse:collapse;font-size:15px;min-width:100%}
.grid th,.grid td{border:1px solid #E1E6EF;padding:8px 10px;text-align:center;white-space:nowrap}
.grid tbody th{text-align:left}
.grid td.ok{background:var(--ok-bg);color:var(--ok);font-weight:700}.grid td.try{background:var(--warn-bg);color:var(--warn)}
#leader-login[hidden]{display:none}
#leader-login{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
#leader-login input{font:16px Montserrat,Arial,sans-serif;padding:8px 12px;border:1px solid #C9D2E6;border-radius:8px}

.foot{background:var(--navy);color:#8A96B0;font-size:14px;padding:24px 0}
@media (max-width:640px){
  .top{position:static}
  .lesson table.stack,.lesson table.stack tbody,.lesson table.stack tr,.lesson table.stack td{display:block;width:100%}
  .lesson table.stack thead{display:none}
  .lesson table.stack tr{border:1px solid #E1E6EF;border-radius:12px;padding:6px 4px;margin-bottom:12px}
  .lesson table.stack td{border:0;padding:6px 12px}
  .lesson table.stack td[data-label]:not([data-label=""])::before{content:attr(data-label);display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--mute)}
  .mods a{grid-template-columns:40px 1fr;}
  .mstat{grid-column:2;justify-self:start}
  .mnum{width:38px;height:38px;font-size:16px}
  .nav{margin-left:0;gap:14px}
}

/* email sign-in + leader view */
.sent h2{margin-top:6px;font-size:24px}.sent{text-align:left;margin-top:18px}
.linkish{background:none;border:0;color:var(--blue-ink);font:600 15px Montserrat,Arial,sans-serif;cursor:pointer;padding:0;text-decoration:underline}
.passcode{text-align:left;margin-top:18px}.passcode summary{cursor:pointer;font-weight:600}
.leader-tools{display:flex;gap:12px;align-items:center;flex-wrap:wrap;margin:8px 0 4px}
.btn-light{background:var(--paper);color:var(--ink);border:1px solid #C9D2E6}.btn-light:hover{background:#E7ECF5}
.tag{display:inline-block;font-size:13px;font-weight:700;padding:3px 10px;border-radius:99px;background:var(--paper);color:var(--mute);white-space:nowrap}
.tag.ok{background:var(--ok-bg);color:var(--ok)}.tag.try{background:var(--warn-bg);color:var(--warn)}.tag.bad{background:var(--bad-bg);color:var(--bad)}