/* SWTM Gamma base course: self-study site. Brand tokens from swtm.eu. */
:root{
  --bg:#0B0B0D; --bg2:#101013; --panel:#141317; --panel2:#1B1A1F; --line:#262429; --line2:#332F27;
  --ink:#EEECE6; --muted:#B8B5AB; --faint:#8A877E; --gold:#E9C46A; --goldb:#F3D68C; --goldd:#C9A24B;
  --up:#5FCB93; --down:#E5695E; --blurple:#8B94FF; --purple:#C9A0F0;
  --head:'Space Grotesk',Arial,sans-serif; --body:'Inter',Arial,sans-serif; --mono:'IBM Plex Mono',ui-monospace,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--body);-webkit-font-smoothing:antialiased}
a{color:var(--goldb);text-underline-offset:3px}
a:hover{color:var(--gold)}
img,video,svg{max-width:100%}

/* layout */
.top{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:16px;padding:12px 20px;background:rgba(11,11,13,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font:500 13px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--gold);text-decoration:none}
.brand::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.progress{margin-left:auto;display:flex;align-items:center;gap:10px;font:500 13px var(--mono);color:var(--muted)}
.bar{width:120px;height:6px;border-radius:3px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--gold);transition:width .3s}
.menu-btn{display:none;background:none;border:1px solid var(--line2);color:var(--ink);border-radius:8px;padding:6px 12px;font:500 14px var(--body);cursor:pointer}
.shell{display:grid;grid-template-columns:290px minmax(0,1fr);max-width:1240px;margin:0 auto}
nav.side{position:sticky;top:55px;align-self:start;height:calc(100vh - 55px);overflow:auto;padding:26px 14px 40px 20px;border-right:1px solid var(--line)}
nav.side h2{font:500 12px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--faint);margin:18px 10px 8px}
nav.side a{display:flex;gap:10px;align-items:flex-start;padding:9px 10px;border-radius:8px;color:var(--muted);text-decoration:none;font-size:15px;line-height:1.35}
nav.side a:hover{background:var(--panel);color:var(--ink)}
nav.side a.here{background:var(--panel2);color:var(--ink);box-shadow:inset 3px 0 0 var(--gold)}
nav.side .n{flex:none;width:22px;height:22px;border-radius:50%;border:1.5px solid var(--line2);font:500 11px/19px var(--mono);text-align:center;color:var(--faint)}
nav.side a.done .n{background:var(--up);border-color:var(--up);color:#0B0B0D}
main{padding:44px 44px 90px;min-width:0}
.wrap{max-width:820px}

/* type */
.kicker{font:500 13px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
h1{font:700 44px/1.1 var(--head);margin:0 0 16px;letter-spacing:-.5px}
h2{font:600 28px/1.2 var(--head);margin:56px 0 14px;padding-top:8px}
h3{font:600 19px/1.3 var(--head);margin:28px 0 8px}
p{margin:0 0 16px}
.lead{font-size:20px;line-height:1.55;color:var(--muted);margin-bottom:8px}
.meta{font:500 13px var(--mono);color:var(--faint);letter-spacing:1px;margin:14px 0 0}
strong{color:#fff;font-weight:600}
.up{color:var(--up)} .down{color:var(--down)} .gold{color:var(--gold)} .purple{color:var(--purple)}
ul,ol{margin:0 0 16px;padding-left:22px}
li{margin:6px 0}

/* blocks */
.video{margin:22px 0 26px;border:1px solid var(--line2);border-radius:14px;overflow:hidden;background:#000}
.video video{display:block;width:100%;aspect-ratio:16/9;background:#000}
.video figcaption{padding:10px 16px;font-size:14px;color:var(--faint);background:var(--panel);border-top:1px solid var(--line)}
.box{margin:24px 0;padding:20px 22px;border:1px solid var(--line2);border-radius:14px;background:var(--panel)}
.box h3{margin-top:0}
.box.key{border-color:rgba(233,196,106,.45);background:linear-gradient(180deg,rgba(233,196,106,.07),rgba(233,196,106,.02))}
.box.key h3{font:500 13px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--gold)}
.box.warn{border-color:rgba(229,105,94,.45);background:rgba(229,105,94,.05)}
.one{margin:26px 0;padding:18px 22px;border-left:3px solid var(--gold);background:var(--panel);border-radius:0 12px 12px 0;font:600 21px/1.4 var(--head)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:20px 0}
.card{padding:16px 18px;border:1px solid var(--line2);border-radius:12px;background:var(--panel)}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0;color:var(--muted);font-size:16px}
.card.up{border-color:rgba(95,203,147,.45)} .card.down{border-color:rgba(229,105,94,.45)}
.card.up h3{color:var(--up)} .card.down h3{color:var(--down)}
.steps{counter-reset:s;list-style:none;padding:0;margin:20px 0}
.steps li{counter-increment:s;position:relative;padding:12px 16px 12px 58px;margin:8px 0;border:1px solid var(--line2);border-radius:12px;background:var(--panel)}
.steps li::before{content:counter(s);position:absolute;left:16px;top:12px;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--gold);color:var(--gold);font:700 14px/26px var(--head);text-align:center}
.table{overflow-x:auto;margin:20px 0;border:1px solid var(--line2);border-radius:12px}
table{border-collapse:collapse;width:100%;font-size:16px}
th,td{text-align:left;padding:11px 16px;border-bottom:1px solid var(--line);vertical-align:top}
th{font:500 12px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint);background:var(--panel)}
tr:last-child td{border-bottom:0}
td:first-child{white-space:nowrap;color:#fff;font-weight:500}
code,.mono{font-family:var(--mono);font-size:.92em}
.formula{margin:20px 0;padding:16px 20px;border-radius:12px;background:var(--panel2);font:500 17px var(--mono);color:var(--goldb);overflow-x:auto;white-space:nowrap}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 6px}
.tag{font:500 12px var(--mono);letter-spacing:1.5px;text-transform:uppercase;padding:5px 11px;border-radius:99px;border:1px solid var(--line2);color:var(--muted)}
.tag.up{border-color:var(--up);color:var(--up)} .tag.down{border-color:var(--down);color:var(--down)} .tag.gold{border-color:var(--goldd);color:var(--gold)}

/* quiz */
.quiz{margin:60px 0 0;padding:26px 26px 22px;border:1px solid var(--line2);border-radius:16px;background:var(--panel)}
.quiz h2{margin:0 0 4px;padding:0;font-size:24px}
.quiz .sub{color:var(--faint);font-size:15px;margin-bottom:18px}
.q{padding:18px 0;border-top:1px solid var(--line)}
.q p{font-weight:600;color:#fff;margin-bottom:12px}
.opts{display:grid;gap:8px}
.opts button{all:unset;box-sizing:border-box;cursor:pointer;display:block;width:100%;padding:11px 14px;border:1px solid var(--line2);border-radius:10px;background:var(--bg2);color:var(--ink);font-size:16px;line-height:1.4}
.opts button:hover{border-color:var(--goldd)}
.opts button:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
.opts button.right{border-color:var(--up);background:rgba(95,203,147,.12)}
.opts button.wrong{border-color:var(--down);background:rgba(229,105,94,.10)}
.opts button[disabled]{cursor:default}
.why{display:none;margin-top:10px;padding:10px 14px;border-radius:10px;background:var(--panel2);color:var(--muted);font-size:15px}
.q.answered .why{display:block}
.score{margin-top:14px;font:600 18px var(--head);color:var(--gold)}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin:34px 0 0}
.btn{display:inline-block;padding:12px 20px;border-radius:10px;border:1px solid var(--goldd);background:var(--gold);color:#0B0B0D;font:600 16px var(--body);text-decoration:none;cursor:pointer}
.btn:hover{background:var(--goldb);color:#0B0B0D}
.btn.ghost{background:none;color:var(--ink);border-color:var(--line2)}
.btn.ghost:hover{border-color:var(--goldd);color:var(--goldb)}
.btn.is-done{background:none;color:var(--up);border-color:var(--up)}

/* home */
.modules{display:grid;gap:12px;margin:26px 0}
.mod{display:grid;grid-template-columns:54px 1fr auto;gap:16px;align-items:center;padding:16px 18px;border:1px solid var(--line2);border-radius:14px;background:var(--panel);text-decoration:none;color:var(--ink)}
.mod:hover{border-color:var(--goldd);color:var(--ink)}
.mod .num{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--gold);color:var(--gold);font:700 18px/42px var(--head);text-align:center}
.mod.done .num{background:var(--up);border-color:var(--up);color:#0B0B0D}
.mod h3{margin:0 0 2px;font-size:19px}
.mod p{margin:0;color:var(--muted);font-size:15px}
.mod .min{font:500 12px var(--mono);color:var(--faint);white-space:nowrap}

/* case studies */
.case{margin:54px 0 0;padding-top:10px;border-top:1px solid var(--line)}
.chart{margin:20px 0 10px;border:1px solid var(--line2);border-radius:14px;background:var(--panel);overflow-x:auto}
.chart svg{display:block;min-width:760px;width:100%;height:auto}
.chart-note{font-size:14px;color:var(--faint);margin:0 0 18px}
.marks{list-style:none;padding:0;margin:18px 0}
.marks li{display:grid;grid-template-columns:34px 1fr;gap:12px;padding:8px 0}
.marks .m{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--gold);color:var(--gold);font:700 14px/26px var(--head);text-align:center}
.marks time{font:500 14px var(--mono);color:var(--goldb)}

footer{margin:70px 0 0;padding-top:22px;border-top:1px solid var(--line);font-size:14px;color:var(--faint)}

@media (max-width:1000px){
  .shell{grid-template-columns:1fr}
  .menu-btn{display:inline-block}
  nav.side{display:none;position:static;height:auto;border-right:0;border-bottom:1px solid var(--line);padding:10px 16px 18px}
  nav.side.open{display:block}
  main{padding:30px 16px 70px}
  h1{font-size:34px} h2{font-size:24px;margin-top:44px}
  .grid2{grid-template-columns:1fr}
  .bar{width:70px}
  .mod{grid-template-columns:48px 1fr}
  .mod .min{display:none}
}
@media print{
  :root{--bg:#fff;--bg2:#fff;--panel:#fff;--panel2:#f4f2ec;--line:#d8d5cc;--line2:#c9c5ba;--ink:#16151a;--muted:#3a3936;--faint:#5c5a54;--gold:#8a6a14;--goldb:#8a6a14;--goldd:#8a6a14;--up:#1f7a4d;--down:#b3382d;--purple:#6b3fa0}
  body{font-size:12.5px;line-height:1.45} strong,td:first-child{color:#000}
  .top,nav.side,.actions,footer .noprint{display:none!important}
  .shell{display:block} main{padding:0} .wrap{max-width:none}
  h1{font-size:26px} h2{font-size:17px;margin:16px 0 6px} .box,.card{break-inside:avoid;padding:10px 12px;margin:10px 0}
  .grid2{gap:8px;margin:8px 0} th,td{padding:5px 8px} table{font-size:12px}
}

@media (max-width:600px){.top .brand{font-size:11px;letter-spacing:1.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}.progress span{white-space:nowrap}.progress .bar{display:none}}

/* ---------- academy additions ---------- */
nav.side a.ex{color:var(--goldb)}
nav.side a.ex .n{border-color:var(--goldd);color:var(--gold)}
nav.side a.done.ex .n{background:var(--up);border-color:var(--up);color:#0B0B0D}
.rootmain{max-width:980px;margin:0 auto;padding:54px 24px 90px}
.rootmain .wrap{max-width:none}
.courses{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:30px 0}
.course{display:block;padding:24px 24px 20px;border:1px solid var(--line2);border-radius:16px;background:var(--panel);text-decoration:none;color:var(--ink)}
.course:hover{border-color:var(--goldd);color:var(--ink)}
.course .step{font:500 12px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--gold)}
.course h2{margin:8px 0 4px;padding:0;font-size:30px}
.course .ct{color:#fff;font-weight:600;margin-bottom:8px}
.course p{color:var(--muted);font-size:16px;margin-bottom:10px}
.course .meta{margin:0 0 16px}
.course .progress{margin:0;justify-content:flex-start}
.course .bar{width:160px}
.resume{margin:22px 0 4px}
.modblock{margin:16px 0;border:1px solid var(--line2);border-radius:14px;background:var(--panel);overflow:hidden}
.modhead{display:grid;grid-template-columns:54px 1fr auto;gap:16px;align-items:center;padding:16px 18px}
.modhead .num{width:44px;height:44px;border-radius:50%;border:1.5px solid var(--gold);color:var(--gold);font:700 18px/42px var(--head);text-align:center}
.modhead h3{margin:0 0 2px;font-size:20px}
.modhead p{margin:0;color:var(--muted);font-size:15px}
.modhead .min{font:500 12px var(--mono);color:var(--faint);white-space:nowrap}
.modlist a{display:grid;grid-template-columns:34px 1fr auto;gap:12px;align-items:center;padding:11px 18px 11px 28px;border-top:1px solid var(--line);color:var(--ink);text-decoration:none;font-size:16px}
.modlist a:hover{background:var(--panel2)}
.modlist .n{width:26px;height:26px;border-radius:50%;border:1.5px solid var(--line2);font:500 11px/23px var(--mono);text-align:center;color:var(--faint)}
.modlist a.done .n{background:var(--up);border-color:var(--up);color:#0B0B0D}
.modlist .st{font:500 12px var(--mono);color:var(--faint);white-space:nowrap}
.modlist a.ex .t{color:var(--goldb)}
.modlist a.ex .n{border-color:var(--goldd);color:var(--gold)}
.modlist a.done .st{color:var(--up)}
.check{margin:28px 0;padding:6px 22px 18px;border:1px solid rgba(233,196,106,.35);border-radius:14px;background:var(--panel)}
.check-h{font:500 12px var(--mono);letter-spacing:3px;text-transform:uppercase;color:var(--gold);margin:14px 0 0}
.check .q{border-top:0;padding:10px 0 0}
.opts button.sel{border-color:var(--gold);background:rgba(233,196,106,.12)}
#exam .q:first-child{border-top:0}
.exam-foot{position:sticky;bottom:0;display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:18px;padding:14px 18px;border:1px solid var(--line2);border-radius:14px;background:rgba(20,19,23,.96);backdrop-filter:blur(8px)}
.exam-count{font:500 14px var(--mono);color:var(--muted)}
.btn[disabled]{opacity:.45;cursor:not-allowed}
.result{display:flex;align-items:center;gap:22px;margin:28px 0 0;padding:22px 24px;border-radius:16px;border:1px solid var(--line2);background:var(--panel)}
.result[hidden]{display:none}
.result .big{font:700 40px/1 var(--head);white-space:nowrap}
.result.pass{border-color:var(--up)} .result.pass .big{color:var(--up)}
.result.fail{border-color:var(--down)} .result.fail .big{color:var(--down)}
.btn.is-done{background:none;color:var(--up);border-color:var(--up)}
@media (max-width:1000px){.courses{grid-template-columns:1fr}.modhead{grid-template-columns:48px 1fr}.modhead .min{display:none}.modlist a{padding-left:18px}.result{flex-direction:column;align-items:flex-start;gap:10px}}
@media print{.check,.exam-foot{break-inside:avoid}}

/* ---------- cinematic look: the trading-room backdrop and glass panels from the videos (appended to style.css at build time) ---------- */
:root{--glass:linear-gradient(180deg,rgba(30,29,35,.80),rgba(17,17,21,.76));--edge:rgba(255,255,255,.07);--edge-gold:rgba(243,214,140,.30);
  --shadow:0 30px 70px -34px rgba(0,0,0,.95),0 2px 0 rgba(255,255,255,.02) inset}
html{background:#050506}
body{background:transparent;position:relative}
body::before{content:"";position:fixed;inset:0;z-index:-2;background:#050506 url(room-blur.jpg) center/cover no-repeat}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(ellipse at 50% 30%,rgba(5,5,6,.35) 0%,rgba(5,5,6,.78) 62%,rgba(5,5,6,.96) 100%),url("data:image/svg+xml,%3Csvg xmlns=%22http://www.w3.org/2000/svg%22 width=%22220%22 height=%22220%22%3E%3Cfilter id=%22n%22%3E%3CfeTurbulence type=%22fractalNoise%22 baseFrequency=%22.9%22 numOctaves=%222%22 stitchTiles=%22stitch%22/%3E%3CfeColorMatrix values=%220 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .055 0%22/%3E%3C/filter%3E%3Crect width=%22220%22 height=%22220%22 filter=%22url(%23n)%22/%3E%3C/svg%3E")}
.top{background:rgba(7,7,9,.72);backdrop-filter:blur(18px) saturate(130%);-webkit-backdrop-filter:blur(18px) saturate(130%);border-bottom:1px solid var(--edge);box-shadow:0 1px 0 rgba(243,214,140,.10)}
.bar{background:rgba(255,255,255,.08)}
.bar i{background:linear-gradient(90deg,var(--goldd),var(--goldb));box-shadow:0 0 12px rgba(233,196,106,.7)}
nav.side{border-right:1px solid var(--edge);background:linear-gradient(180deg,rgba(8,8,10,.55),rgba(8,8,10,.25))}
nav.side a:hover{background:rgba(255,255,255,.05)}
nav.side a.here{background:rgba(233,196,106,.09);box-shadow:inset 3px 0 0 var(--gold),0 0 24px -8px rgba(233,196,106,.5)}
nav.side a.done .n,.modlist a.done .n{box-shadow:0 0 10px rgba(95,203,147,.55)}

/* hero: the room, sharp, behind the title */
.hero{position:relative;overflow:hidden;margin:0 0 34px;padding:54px 44px 40px;border-radius:20px;border:1px solid var(--edge);border-top-color:var(--edge-gold);box-shadow:var(--shadow);isolation:isolate}
.hero::before{content:"";position:absolute;inset:-4%;z-index:-2;background:url(room.jpg) var(--pos,50%) 38%/cover no-repeat;animation:drift 38s ease-in-out infinite alternate}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(5,5,6,.93) 0%,rgba(5,5,6,.74) 48%,rgba(5,5,6,.34) 100%),linear-gradient(0deg,rgba(5,5,6,.85) 0%,rgba(5,5,6,0) 55%)}
.hero h1{text-shadow:0 2px 30px rgba(0,0,0,.8);max-width:17em}
.hero .lead{color:#D3D0C6;max-width:34em;text-shadow:0 1px 14px rgba(0,0,0,.9)}
.hero .meta{color:#A9A69C}
.hero .kicker{display:flex;align-items:center;gap:10px}
.hero .kicker::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
.hero.big{padding:110px 56px 64px;min-height:440px;display:flex;flex-direction:column;justify-content:flex-end}
.hero.big h1{font-size:56px}
.hero.big::after{background:linear-gradient(90deg,rgba(5,5,6,.88) 0%,rgba(5,5,6,.55) 55%,rgba(5,5,6,.12) 100%),linear-gradient(0deg,rgba(5,5,6,.92) 0%,rgba(5,5,6,0) 60%)}
@keyframes drift{from{transform:scale(1) translateX(0)}to{transform:scale(1.07) translateX(-1.2%)}}

/* glass panels with the thin gold top edge of the video screens */
.box,.card,.modblock,.quiz,.check,.course,.table,.steps li,.result,.one,.formula,.exam-foot{background:var(--glass);border-color:var(--edge);border-top-color:var(--edge-gold);box-shadow:var(--shadow)}
.box.key{background:linear-gradient(180deg,rgba(60,48,20,.50),rgba(20,19,23,.78));border-color:rgba(233,196,106,.30);border-top-color:rgba(243,214,140,.55)}
.box.warn{background:linear-gradient(180deg,rgba(70,26,22,.45),rgba(20,19,23,.78));border-color:rgba(229,105,94,.30);border-top-color:rgba(229,105,94,.6)}
.card.up{border-color:rgba(95,203,147,.25);border-top-color:rgba(95,203,147,.7);background:linear-gradient(180deg,rgba(22,52,38,.50),rgba(17,17,21,.78))}
.card.down{border-color:rgba(229,105,94,.25);border-top-color:rgba(229,105,94,.7);background:linear-gradient(180deg,rgba(62,26,22,.50),rgba(17,17,21,.78))}
.one{border-left:3px solid var(--gold);border-top-color:var(--edge);box-shadow:var(--shadow),-14px 0 30px -18px rgba(233,196,106,.55)}
th{background:rgba(255,255,255,.035)}
th,td{border-bottom-color:rgba(255,255,255,.06)}
.opts button{background:rgba(8,8,10,.55);border-color:rgba(255,255,255,.10);transition:border-color .15s,background .15s,transform .15s}
.opts button:not([disabled]):hover{border-color:var(--goldd);background:rgba(233,196,106,.06);transform:translateX(2px)}
.opts button.right{box-shadow:0 0 22px -8px rgba(95,203,147,.8)}
.why{background:rgba(255,255,255,.045)}
.modlist a{border-top-color:rgba(255,255,255,.06)}
.modlist a:hover{background:rgba(255,255,255,.04)}
.modhead .num,.mod .num{box-shadow:0 0 18px -4px rgba(233,196,106,.6),inset 0 0 12px -6px rgba(233,196,106,.6)}
h2{position:relative}
main .wrap>h2::before{content:"";position:absolute;left:0;top:-6px;width:38px;height:2px;background:linear-gradient(90deg,var(--gold),transparent);box-shadow:0 0 10px rgba(233,196,106,.7)}

/* video as a lit screen in the room */
.video{border-color:var(--edge);border-top-color:var(--edge-gold);box-shadow:0 40px 90px -40px rgba(0,0,0,1),0 0 70px -30px rgba(233,196,106,.35)}
.video figcaption{background:rgba(10,10,12,.85);border-top-color:rgba(255,255,255,.06)}
.chart{border-color:var(--edge);border-top-color:var(--edge-gold);box-shadow:var(--shadow)}

.btn{background:linear-gradient(180deg,var(--goldb),var(--gold) 55%,var(--goldd));border-color:rgba(255,255,255,.25);box-shadow:0 10px 30px -12px rgba(233,196,106,.75),0 1px 0 rgba(255,255,255,.35) inset;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 14px 36px -12px rgba(233,196,106,.95),0 1px 0 rgba(255,255,255,.35) inset}
.btn.ghost,.btn.is-done{background:rgba(12,12,15,.6);box-shadow:none;border-color:rgba(255,255,255,.14)}
.btn.is-done{border-color:var(--up)}
.btn[disabled]{transform:none}

/* course cards on the academy home: a screen with the course's own footage */
.course{padding:0;overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.course:hover{transform:translateY(-3px);border-color:rgba(233,196,106,.45);box-shadow:var(--shadow),0 0 60px -26px rgba(233,196,106,.6)}
.course .shot{display:block;position:relative;aspect-ratio:16/8.2;overflow:hidden;border-bottom:1px solid var(--edge)}
.course .shot img{width:100%;height:100%;object-fit:cover;object-position:50% 46%;display:block;transition:transform .8s}
.course:hover .shot img{transform:scale(1.04)}
.course .shot::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,17,21,.95) 0%,rgba(17,17,21,0) 45%)}
.course .body{display:block;padding:20px 24px 22px}
.course h2::before{display:none}
.rootmain{max-width:1080px}

/* quiet entrance, as in the films: things fade in, nothing pops */
@media (prefers-reduced-motion:no-preference){
  main .wrap{animation:rise .7s ease both}
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
  .reveal.in{opacity:1;transform:none}
}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.hero::before{animation:none}}
@media (max-width:1000px){.hero{padding:34px 22px 28px;border-radius:16px}.hero.big{padding:70px 24px 36px;min-height:340px}.hero.big h1{font-size:36px}nav.side{background:rgba(8,8,10,.92)}}
@media print{body::before,body::after,.hero::before,.hero::after{display:none}.hero{padding:0;border:0;box-shadow:none}.hero h1,.hero .lead{text-shadow:none;color:#000}.box,.card,.table,.steps li,.one{background:#fff;box-shadow:none}.reveal{opacity:1!important;transform:none!important}}
nav.side,.table,.chart{scrollbar-width:thin;scrollbar-color:rgba(233,196,106,.35) transparent}
nav.side::-webkit-scrollbar{width:8px}nav.side::-webkit-scrollbar-thumb{background:rgba(233,196,106,.28);border-radius:4px}nav.side::-webkit-scrollbar-track{background:transparent}
html{scrollbar-color:rgba(233,196,106,.35) #050506}

/* ---------- layout pass: navigation, lesson header, numbered sections, pager, overview, certificate (appended after cinema.css) ---------- */
.shell{grid-template-columns:316px minmax(0,1fr);max-width:1480px}
main{padding:40px 48px 100px}
body{font-size:17.5px;line-height:1.7}
p,li{color:#DAD7CE}
.wrap{max-width:800px}

/* --- top bar --- */
.top{padding:14px 26px}
.top .signout{font:500 12px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--faint);text-decoration:none;padding:6px 10px;border:1px solid var(--edge);border-radius:8px}
.top .signout:hover{color:var(--goldb);border-color:var(--goldd)}

/* --- navigation: modules fold, numbers are plain type, status is a dot --- */
nav.side{top:57px;height:calc(100vh - 57px);padding:22px 14px 48px 18px}
nav.side a.navlink{display:block;padding:9px 12px;font:500 12px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint)}
nav.side a.navlink.here{color:var(--goldb);background:none;box-shadow:none}
.navmod{margin:8px 0 0;padding-top:8px;border-top:1px solid var(--edge)}
.navmod summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:28px 1fr auto;gap:8px;align-items:baseline;padding:10px 12px;border-radius:8px;user-select:none}
.navmod summary::-webkit-details-marker{display:none}
.navmod summary:hover{background:rgba(255,255,255,.04)}
.navmod .mn{font:600 12px var(--mono);letter-spacing:1px;color:var(--gold)}
.navmod .mt{font:600 15px/1.3 var(--head);color:#CFCCC3}
.navmod[open] .mt{color:#fff}
.navmod .mc{font:500 11px var(--mono);color:var(--faint)}
.navmod .mc.full{color:var(--up)}
.navmod[open]{padding-bottom:6px}
nav.side a.row{display:grid;grid-template-columns:40px 1fr 10px;gap:8px;align-items:center;padding:8px 12px;font-size:14.5px;line-height:1.35;color:#B9B6AC}
nav.side a.row .n,nav.side a.row.done .n{width:auto;height:auto;border:0;border-radius:0;background:none;box-shadow:none;font:500 11.5px var(--mono);line-height:inherit;text-align:left;color:var(--faint)}
nav.side a.row.ex .n{color:var(--gold);font-size:10px;letter-spacing:1px;text-transform:uppercase}
nav.side a.row.ex{color:var(--goldb)}
nav.side a.row .dot{width:8px;height:8px;border-radius:50%;border:1.5px solid rgba(255,255,255,.22)}
nav.side a.row.done .dot{background:var(--up);border-color:var(--up);box-shadow:0 0 8px rgba(95,203,147,.7)}
nav.side a.row.here{color:#fff;background:rgba(233,196,106,.08);box-shadow:inset 2px 0 0 var(--gold)}
.navsec{margin:16px 0 4px;padding:14px 12px 0;border-top:1px solid var(--edge);font:500 11px var(--mono);letter-spacing:2.5px;text-transform:uppercase;color:var(--faint)}

/* --- lesson header --- */
.hero{padding:58px 48px 42px}
.hero h1{font-size:46px;letter-spacing:-.8px}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin:20px 0 0;letter-spacing:0}
.chips span{font:500 12px var(--mono);letter-spacing:1.5px;text-transform:uppercase;padding:6px 12px;border:1px solid rgba(255,255,255,.14);border-radius:99px;background:rgba(8,8,10,.55);color:#CBC8BE}

/* --- numbered sections, like chapters --- */
body[data-kind="lesson"] main .wrap{counter-reset:sec}
body[data-kind="lesson"] main .wrap>h2{counter-increment:sec;margin:70px 0 16px;padding-top:26px;border-top:1px solid var(--edge);font-size:30px}
body[data-kind="lesson"] main .wrap>h2::before{content:counter(sec,decimal-leading-zero);position:static;display:block;width:auto;height:auto;background:none;box-shadow:none;font:500 12px var(--mono);letter-spacing:3px;color:var(--gold);margin-bottom:10px}
h3{font-size:20px}
.box h3,.card h3{letter-spacing:0}
.box.key ul{list-style:none;padding:0;margin:0}
.box.key li{position:relative;padding-left:26px}
.box.key li::before{content:"";position:absolute;left:2px;top:.62em;width:10px;height:5px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg)}

/* --- questions: lettered answers, state in the header --- */
.check{padding:0;overflow:hidden}
.check-h{display:flex;justify-content:space-between;margin:0;padding:12px 22px;border-bottom:1px solid var(--edge);background:rgba(255,255,255,.03)}
.check .q{padding:18px 22px 20px}
.check:has(.q.ok) .check-h::after{content:"Correct";color:var(--up)}
.check:has(.q.miss) .check-h::after{content:"Not quite";color:var(--down)}
.opts{counter-reset:o}
.opts button{counter-increment:o;display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;padding:12px 14px}
.opts button::before{content:counter(o,upper-alpha);width:26px;height:26px;border-radius:7px;border:1px solid rgba(255,255,255,.18);font:600 12px/24px var(--mono);text-align:center;color:var(--faint)}
.opts button.sel::before{border-color:var(--gold);color:var(--gold);background:rgba(233,196,106,.12)}
.opts button.right::before{border-color:var(--up);color:#0B0B0D;background:var(--up)}
.opts button.wrong::before{border-color:var(--down);color:#0B0B0D;background:var(--down)}
.q p{font-size:18px}
.note{color:var(--faint);font-size:15px;margin:-6px 0 26px}

/* --- previous / next --- */
.pager{display:grid;grid-template-columns:1fr 1.5fr;gap:14px;margin:64px 0 0}
.pager a{display:block;padding:20px 24px;border-radius:16px;border:1px solid var(--edge);border-top-color:var(--edge-gold);background:var(--glass);box-shadow:var(--shadow);text-decoration:none;color:var(--ink);transition:transform .15s,border-color .15s,box-shadow .15s}
.pager a:hover{transform:translateY(-2px);border-color:rgba(233,196,106,.5)}
.pager span{display:block;font:500 12px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.pager strong{font:600 19px/1.3 var(--head);color:#fff}
.pager .next{text-align:right;border-color:rgba(233,196,106,.5);background:linear-gradient(180deg,rgba(233,196,106,.20),rgba(233,196,106,.05));box-shadow:var(--shadow),0 0 60px -30px rgba(233,196,106,.8)}
.pager .next span{color:var(--goldb)}

/* --- figures --- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin:28px 0;border:1px solid var(--edge);border-top-color:var(--edge-gold);border-radius:16px;overflow:hidden;background:var(--edge);box-shadow:var(--shadow)}
.stats>div{padding:20px 22px;background:rgba(17,17,21,.9)}
.stats b{display:block;font:700 32px/1.1 var(--head);color:#fff;letter-spacing:-.5px}
.stats>div:first-child b{color:var(--gold)}
.stats span{display:block;margin-top:6px;font:500 11.5px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint)}
.how{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0}
.how>div{padding:18px 18px 16px;border:1px solid var(--edge);border-top-color:var(--edge-gold);border-radius:14px;background:var(--glass);box-shadow:var(--shadow)}
.how span{font:600 12px var(--mono);letter-spacing:2px;color:var(--gold)}
.how h3{margin:8px 0 4px;font-size:18px}
.how p{margin:0;font-size:15px;color:var(--muted);line-height:1.5}

/* --- curriculum --- */
.modblock{margin:18px 0;border-radius:16px}
.modhead{grid-template-columns:56px 1fr auto;padding:20px 22px}
.modhead .num,.mod .num{width:auto;height:auto;border:0;border-radius:0;box-shadow:none;font:600 22px var(--mono);line-height:1;text-align:left;color:var(--gold)}
.modhead h3{font-size:22px}
.modhead .min{text-align:right;line-height:1.5}
.modhead .min b{display:block;font:600 14px var(--mono);color:var(--ink)}
.modbar{height:2px;background:rgba(255,255,255,.06)}
.modbar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--goldd),var(--goldb));box-shadow:0 0 10px rgba(233,196,106,.8);transition:width .5s}
.modlist a{grid-template-columns:48px 1fr auto;padding:13px 22px}
.modlist .n,.modlist a.done .n{width:auto;height:auto;border:0;border-radius:0;background:none;box-shadow:none;font:500 12px var(--mono);line-height:inherit;text-align:left;color:var(--faint)}
.modlist a.ex .n{color:var(--gold);font-size:10.5px;letter-spacing:1px;text-transform:uppercase}
.modlist a.done .t::after{content:"✓";margin-left:10px;color:var(--up);font-weight:700}

/* --- academy home --- */
.course .out{list-style:none;padding:0;margin:14px 0 16px}
.course .out li{position:relative;padding-left:24px;margin:7px 0;color:#DAD7CE;font-size:16px}
.course .out li::before{content:"";position:absolute;left:2px;top:.6em;width:10px;height:5px;border-left:2px solid var(--gold);border-bottom:2px solid var(--gold);transform:rotate(-45deg)}
.course h2{font-size:32px}

/* --- on this page --- */
.toc{display:none}
@media (min-width:1380px){
  body[data-kind="lesson"] main{display:grid;grid-template-columns:minmax(0,800px) 230px;gap:56px;justify-content:start}
  .toc{display:block;position:sticky;top:96px;align-self:start;max-height:calc(100vh - 130px);overflow:auto}
  .toc b{display:block;font:500 11px var(--mono);letter-spacing:2.5px;text-transform:uppercase;color:var(--faint);margin:0 0 10px 13px}
  .toc a{display:block;padding:7px 0 7px 12px;border-left:1px solid var(--edge);font-size:14px;line-height:1.4;color:var(--faint);text-decoration:none}
  .toc a:hover{color:var(--ink)}
  .toc a.on{color:var(--goldb);border-left-color:var(--gold)}
}

/* --- certificate --- */
.certform{display:flex;flex-wrap:wrap;gap:12px;align-items:end;margin:24px 0}
.certform label{display:block;font:500 12px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint);margin-bottom:6px}
.certform input{min-width:300px;padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.16);background:rgba(8,8,10,.7);color:var(--ink);font:500 17px var(--body);outline:none}
.certform input:focus{border-color:var(--gold)}
.cert{position:relative;margin:10px 0 0;padding:64px 48px 52px;text-align:center;border-radius:18px;border:1px solid rgba(233,196,106,.6);background:linear-gradient(160deg,rgba(46,38,18,.82),rgba(12,12,15,.94) 60%);box-shadow:var(--shadow),inset 0 0 0 8px rgba(8,8,10,.55),inset 0 0 0 9px rgba(233,196,106,.28)}
.cert .ck{font:500 13px var(--mono);letter-spacing:5px;text-transform:uppercase;color:var(--gold)}
.cert .ct{font:700 34px var(--head);margin:14px 0 30px;color:#fff}
.cert .cs{color:var(--muted);font-size:16px;margin:0}
.cert .cn{font:700 44px/1.15 var(--head);color:var(--goldb);margin:10px 0 18px;min-height:52px;text-shadow:0 0 40px rgba(233,196,106,.35)}
.cert .cc{font:600 22px var(--head);color:#fff;margin:6px 0 4px}
.cert .cm{display:flex;justify-content:center;gap:44px;margin:34px 0 0;font:500 12px var(--mono);letter-spacing:2px;text-transform:uppercase;color:var(--faint)}
.cert .cm b{display:block;font:600 18px var(--head);letter-spacing:0;text-transform:none;color:var(--ink);margin-bottom:4px}
.cert .cf{margin:30px 0 0;font-size:12.5px;color:var(--faint)}

@media (max-width:1000px){
  main{padding:26px 16px 80px}
  .hero{padding:34px 22px 28px}.hero h1{font-size:32px}
  .stats,.how{grid-template-columns:1fr 1fr}
  .pager{grid-template-columns:1fr}
  .modhead{grid-template-columns:44px 1fr}
  .cert{padding:40px 20px}.cert .cn{font-size:30px}.cert .cm{flex-direction:column;gap:16px}
  .certform input{min-width:0;width:100%}
  body[data-kind="lesson"] main .wrap>h2{font-size:25px;margin-top:52px}
}
@media print{
  .pager,.toc,.certform,.signout{display:none!important}
  body.certpage .hero,body.certpage footer{display:none}
  .cert{background:#fff;border:2px solid #8a6a14;box-shadow:none;color:#000}
  .cert .ct,.cert .cc,.cert .cm b{color:#000}.cert .cn{color:#8a6a14;text-shadow:none}
  .stats>div,.how>div{background:#fff}
  @page{margin:14mm}
}
nav.side a.row .n{text-transform:uppercase}
nav.side a.row:not(.ex) .n{letter-spacing:.5px}
body[data-kind="home"] .wrap,body[data-kind="exam"] .wrap,body[data-kind="extra"] .wrap{max-width:960px}
@media (max-width:1000px){.shell{grid-template-columns:1fr}nav.side{position:static;height:auto;max-height:70vh}.top{padding:12px 16px}}

/* --- strict order: locked items, video state, notices --- */
nav.side a.row.locked,.modlist a.locked{opacity:.42;cursor:not-allowed}
nav.side a.row.locked .dot{border-radius:2px;border-style:dashed}
.modlist a.locked .st::after{content:" · locked"}
.video figcaption{display:flex;justify-content:space-between;gap:16px}
.video .vstate{font:500 12px var(--mono);letter-spacing:1.5px;text-transform:uppercase;color:var(--goldb);white-space:nowrap}
.video.watched .vstate{color:var(--up)}
.pager .next.locked{border-color:var(--edge);background:var(--glass);box-shadow:var(--shadow);cursor:not-allowed}
.pager .next.locked span{color:var(--faint)}
.pager .next.locked strong{color:#8f8c84}
.lockpanel{border-top-color:rgba(243,214,140,.55)}
.lockpanel .lockneed{color:#fff;font-weight:600}
.toast{position:fixed;left:50%;bottom:28px;z-index:50;transform:translate(-50%,20px);max-width:min(560px,calc(100vw - 32px));padding:14px 20px;border-radius:12px;border:1px solid rgba(233,196,106,.5);background:rgba(14,14,17,.96);color:var(--ink);font-size:15.5px;box-shadow:0 20px 60px -10px #000;opacity:0;pointer-events:none;transition:opacity .25s,transform .25s}
.toast.on{opacity:1;transform:translate(-50%,0)}
@media (max-width:1000px){.video figcaption{flex-direction:column;gap:4px}}

/* --- certificate on paper or PDF: the same dark design, one landscape page, colours forced so it does not depend on the "background graphics" setting --- */
@page cert{size:A4 landscape;margin:10mm}
@media print{
  html,body{background:#fff!important}
  body.certpage main{padding:0!important}
  body.certpage .wrap{max-width:none;animation:none}
  .cert{page:cert;-webkit-print-color-adjust:exact;print-color-adjust:exact;margin:0;min-height:186mm;display:flex;flex-direction:column;justify-content:center;break-inside:avoid;background:linear-gradient(160deg,#2e2612,#0c0c0f 60%)!important;border:1px solid rgba(233,196,106,.75)!important;box-shadow:inset 0 0 0 8px #0a0a0c,inset 0 0 0 9px rgba(233,196,106,.38)!important}
  .cert .ck{color:#E9C46A!important;font-size:15px}
  .cert .ct{color:#fff!important;font-size:42px}
  .cert .cc{color:#fff!important;font-size:26px}
  .cert .cn{color:#F3D68C!important;font-size:56px;margin:14px 0 24px}
  .cert .cs{color:#B8B5AB!important;font-size:18px}
  .cert .cm{color:#8A877E!important;font-size:13px}
  .cert .cm b{color:#EEECE6!important;font-size:21px}
  .cert .cf{color:#8A877E!important;font-size:13px}
}
@media print{.cert{padding:40px 48px!important}.cert .cm{flex-direction:row!important;gap:56px!important;margin-top:40px}}

/* --- figures and predict-then-reveal cases --- */
.fig{margin:26px 0;border:1px solid var(--edge);border-top-color:var(--edge-gold);border-radius:14px;background:#141317;box-shadow:var(--shadow);overflow-x:auto}
.fig svg{display:block;width:100%;min-width:620px;height:auto}
.fig figcaption{padding:11px 16px;font-size:14px;color:var(--faint);border-top:1px solid rgba(255,255,255,.06);background:rgba(10,10,12,.85)}
.case.predict .after{display:none}
.case.predict.revealed .after{display:block;animation:rise .7s ease both}
.case.predict.revealed span.after{display:inline-block}
.case.predict.revealed .before .chart,.case.predict.revealed .before .chart-note{display:none}
@media print{.case.predict .after{display:block}.case.predict span.after{display:inline-block}.case.predict .before .chart{display:none}}
.case.predict:not(.revealed) + .check{display:none}