:root{--ink:#F7F2EC;--ink2:#C8C0B7;--ink3:#8D857C;--line:rgba(255,255,255,.12);--surf:#211E1B;--surf2:#2A2622;--acc:#FF7A1A;--bright:#FC6603;--ok:#6ED6A0;--no:#FF7B72;--bg:#151311;--day:#FC6603}
html,body{background:#0C0B0A;color:var(--ink)}
body:before{content:"";position:fixed;inset:0;pointer-events:none;background:radial-gradient(circle at 50% 25%,rgba(252,102,3,.08),transparent 42%),linear-gradient(rgba(255,255,255,.015) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.015) 1px,transparent 1px);background-size:auto,40px 40px,40px 40px}
#deck{border:1px solid rgba(255,255,255,.08);box-shadow:0 30px 90px rgba(0,0,0,.52),0 0 0 1px rgba(252,102,3,.07)}
.slide{background:radial-gradient(circle at 95% 5%,color-mix(in srgb,var(--day) 15%,transparent),transparent 30%),linear-gradient(135deg,#191613 0%,#11100F 100%);color:var(--ink);padding:54px 78px 44px}
.slide:before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--day)}
.slide[data-n="1"],.slide[data-n="2"],.slide[data-n="3"],.slide[data-n="4"],.slide[data-n="5"],.slide[data-n="6"]{--day:#FC6603}
.slide[data-n="7"],.slide[data-n="8"],.slide[data-n="9"],.slide[data-n="10"],.slide[data-n="11"],.slide[data-n="12"]{--day:#28B8A6}
.slide[data-n="13"],.slide[data-n="14"],.slide[data-n="15"],.slide[data-n="16"],.slide[data-n="17"],.slide[data-n="18"]{--day:#4F8CFF}
.slide[data-n="19"],.slide[data-n="20"],.slide[data-n="21"],.slide[data-n="22"],.slide[data-n="23"],.slide[data-n="24"]{--day:#FF665E}
.slide[data-n="25"],.slide[data-n="26"],.slide[data-n="27"],.slide[data-n="28"]{--day:#F2B84B}
.slide:not([data-n="1"]):after{content:"0" attr(data-n);position:absolute;right:72px;top:38px;font:700 76px/1 ui-monospace,SFMono-Regular,Menlo,monospace;color:rgba(255,255,255,.035);letter-spacing:-.08em}
.kicker{color:var(--day);font-size:12px}h2{font-size:36px;max-width:78%;color:var(--ink)}.lead{color:var(--ink2);font-size:15px;max-width:75%}.body{left:78px;right:78px;top:188px}.pn{right:78px;color:var(--ink3)}.fnote{left:78px;color:var(--ink2)}.fnote i,.tick{background:var(--day)}
.st,.cd,.rules .rl{background:linear-gradient(145deg,rgba(255,255,255,.075),rgba(255,255,255,.035));border:1px solid rgba(255,255,255,.1);box-shadow:inset 0 1px rgba(255,255,255,.05)}
.st-v,.cd-l,.rl span,.ly-l{color:var(--ink)}.st-l,.cd-t,.fl-s,.ly-s{color:var(--ink2)}.ly{background:rgba(255,255,255,.055);border-left-color:var(--day)}.ly-n,.fl-n{color:var(--day)}.fl-n{background:#171513;border-color:var(--day)}.fl:not(:last-child):after{background:rgba(255,255,255,.18)}
.tb th{color:var(--ink3);border-bottom-color:rgba(255,255,255,.65)}.tb td{border-bottom-color:var(--line);color:var(--ink)}.tb td.lim,.fault td.cau{color:var(--ink2)}.tb tbody tr{transition:background .18s ease}.tb tbody tr:hover{background:rgba(255,255,255,.045)}
.cmp-i,.ck{border-bottom-color:var(--line)}.cmp-i span,.ck span{color:var(--ink)}.ag-row{border-color:var(--line)!important}.ag-n{color:var(--day)!important}.ag-l{color:var(--ink)!important}
.hours{color:#FF9B54}.hr{background:rgba(255,255,255,.13)}.acad{color:#FF9B54}
.title-slide{position:absolute;inset:0;padding:66px 62px 52px 70px;z-index:1}
.slide[data-n="1"]{background:linear-gradient(90deg,rgba(8,7,6,.98) 0%,rgba(8,7,6,.87) 43%,rgba(8,7,6,.18) 72%),url("assets/academy-hero.png") center/cover no-repeat}
.title-slide h1{font-size:47px;line-height:1.04;max-width:59%;text-shadow:0 2px 24px rgba(0,0,0,.45)}.title-slide .lvl{color:#DED5CC}.title-slide .tfs{gap:36px;margin-top:42px;max-width:58%;flex-wrap:wrap}.title-slide .tf b{color:#fff}.title-slide .tf span{color:#BFB6AD}.title-slide .hours{color:#FF9B54}
.slide[data-n="5"]{background-image:linear-gradient(90deg,#151311 0%,rgba(21,19,17,.97) 58%,rgba(21,19,17,.84)),url("assets/manual-10.png");background-size:auto,42% auto;background-position:center,right center;background-repeat:no-repeat}
.slide[data-n="9"],.slide[data-n="16"],.slide[data-n="19"],.slide[data-n="27"]{background-image:linear-gradient(135deg,rgba(255,255,255,.025),transparent 48%),radial-gradient(circle at 86% 16%,color-mix(in srgb,var(--day) 21%,transparent),transparent 27%),linear-gradient(135deg,#191613,#11100F)}
#hud{background:rgba(22,19,17,.9);border:1px solid rgba(255,255,255,.12);box-shadow:0 10px 38px rgba(0,0,0,.45);color:var(--ink);backdrop-filter:blur(22px) saturate(140%)}#hud button{color:var(--ink2)}#hud button:hover{background:rgba(255,255,255,.08);color:#fff}#hud button.course-action{color:#FFB47D;border-left:1px solid rgba(255,255,255,.1);border-radius:0;padding-left:13px}#hud button.course-action[disabled]{opacity:.32;cursor:default}#pos{color:var(--ink3)}
#notes{background:#161412;border-left-color:rgba(255,255,255,.1);color:var(--ink)}.note h3{color:var(--ink)}.nk,.note b{color:#FF9B54}.note p{color:#D4CCC3}
#ov{background:rgba(12,11,10,.97)}.nv{background:#1B1816;border-color:rgba(255,255,255,.1);color:var(--ink)}.nv:hover{border-color:var(--bright);background:#211D1A}.nv b{color:#FF9B54}#hint{color:#736D67}
#lesson-tools{position:fixed;inset:0;z-index:90;display:none;place-items:center;background:rgba(6,5,5,.82);backdrop-filter:blur(14px);padding:32px}#lesson-tools.open{display:grid}
.tool-card{width:min(980px,calc(100vw - 64px));max-height:calc(100vh - 64px);overflow:auto;background:#171412;border:1px solid rgba(255,255,255,.14);border-radius:20px;box-shadow:0 30px 100px rgba(0,0,0,.7);padding:32px;position:relative}
.tool-kicker{font:700 11px/1.2 ui-monospace,SFMono-Regular,Menlo,monospace;color:#FF9B54;letter-spacing:.16em;text-transform:uppercase}.tool-card h3{font-size:32px;line-height:1.1;margin:12px 56px 12px 0}.tool-card p{font-size:18px;line-height:1.48;color:#D6CEC5;max-width:820px}
.tool-close{position:absolute;right:24px;top:22px;border:0;background:rgba(255,255,255,.08);color:#fff;width:38px;height:38px;border-radius:50%;font-size:20px;cursor:pointer}.choice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:24px}.choice{border:1px solid rgba(255,255,255,.13);background:rgba(255,255,255,.045);color:#F7F2EC;border-radius:12px;padding:18px;text-align:left;font:600 16px/1.35 inherit;cursor:pointer}.choice:hover{border-color:#FF8A35;background:rgba(252,102,3,.09)}.choice.selected{border-color:#FF8A35;box-shadow:inset 4px 0 #FC6603}
.reveal{display:none;margin-top:20px;border-left:4px solid #6ED6A0;background:rgba(110,214,160,.08);border-radius:10px;padding:18px 20px;color:#DDF8E9;font-size:16px;line-height:1.5}.reveal.show{display:block}.tool-actions{display:flex;gap:10px;margin-top:20px}.tool-actions button{border:0;border-radius:10px;padding:12px 18px;font:700 14px/1 inherit;cursor:pointer}.reveal-btn{background:#FC6603;color:#fff}.scheme-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:20px}.scheme-wrap figure{margin:0;background:#F4F0EA;border-radius:12px;overflow:hidden}.scheme-wrap img{width:100%;height:430px;object-fit:contain;display:block}.scheme-wrap figcaption{padding:10px 14px;color:#4C4640;font-size:12px}.source-badge{display:inline-flex;align-items:center;gap:8px;margin-top:12px;padding:7px 10px;border:1px solid rgba(255,255,255,.12);border-radius:999px;color:#AFA79F;font-size:12px}
@media (max-width:900px){.choice-grid,.scheme-wrap{grid-template-columns:1fr}.scheme-wrap img{height:300px}}