:root{
  --paper:#F7F3EC; --paper-2:#EFE8DD; --card:#FFFDF9; --blush:#F4E9E1;
  --ink:#24211D; --ink-2:#55504A; --ink-3:#7F786F;
  --night:#1F1E1C; --night-2:#2B2926;
  --accent:#B9603F; --accent-ink:#8F452B; --accent-soft:#F2E1D6;
  --ok:#3D7457; --ok-soft:#E5EFE8; --bad:#A24B3E; --bad-soft:#F6E5E1;
  --line:rgba(36,33,29,.11); --line-2:rgba(36,33,29,.2);
  --serif:'Gambetta',Georgia,'Times New Roman',serif;
  --sans:'Switzer','Helvetica Neue',Arial,sans-serif;
  --r-sm:8px; --r-md:12px; --r-lg:18px;
  --wrap:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
h1,h2,h3{margin:0;font-weight:500}
h1,h2{font-family:var(--serif);letter-spacing:-.015em;line-height:1.08}
h2{font-size:clamp(2rem,3.4vw,2.9rem)}
h2 em,h1 em{font-style:italic;color:var(--accent-ink)}
h3{font-size:1.06rem;font-weight:600;line-height:1.3}
p{margin:0}
button{font:inherit;cursor:pointer}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 clamp(20px,4vw,44px)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:8px;background:var(--ink);color:#fff;padding:8px 12px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.kicker{display:flex;align-items:center;gap:12px;font-size:.76rem;font-weight:500;letter-spacing:.16em;text-transform:uppercase;color:var(--accent-ink);margin-bottom:16px}
.kicker::before{content:"";width:22px;height:1px;background:currentColor;opacity:.7}
.bar{display:block;height:3px;border-radius:2px;background:var(--line);overflow:hidden}
.bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .5s}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 26px;border-radius:999px;border:1px solid transparent;font-weight:500;font-size:.95rem;letter-spacing:.01em;transition:background .2s,color .2s,border-color .2s,opacity .2s;text-decoration:none}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-ink)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#3A3631}
.btn-line{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn-line:hover{border-color:var(--ink)}
.btn[disabled]{opacity:.38;cursor:not-allowed}
.btn-accent[disabled]:hover{background:var(--accent)}.btn-dark[disabled]:hover{background:var(--ink)}

/* Topbar */
.topbar{position:sticky;top:0;z-index:20;background:rgba(247,243,236,.88);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.topbar-in{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--serif);font-weight:500;font-size:1.3rem;letter-spacing:-.01em}
.nav{display:flex;align-items:center;gap:30px;font-size:.9rem}
.nav a{text-decoration:none;color:var(--ink-2)}
.nav a:hover{color:var(--ink)}
.nav-progress{display:flex;align-items:center;gap:10px;font-weight:500;font-variant-numeric:tabular-nums;font-size:.85rem;color:var(--ink-2)}
.np-bar{width:110px;height:3px;border-radius:2px;background:var(--line);overflow:hidden}
.np-bar i{display:block;height:100%;width:0;background:var(--accent);transition:width .5s}

/* Hero */
.hero{position:relative;min-height:min(86vh,800px);display:flex;align-items:flex-end;color:#fff;background:var(--night);overflow:hidden}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(24,22,20,.9) 0%,rgba(24,22,20,.66) 45%,rgba(24,22,20,.1) 80%),linear-gradient(0deg,rgba(24,22,20,.8) 0%,rgba(24,22,20,0) 50%)}
.hero-in{position:relative;padding-top:120px;padding-bottom:clamp(52px,8vw,100px);width:100%}
.eyebrow{font-size:.78rem;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:rgba(255,255,255,.75);margin-bottom:22px;display:flex;align-items:center;gap:12px}
.eyebrow::before{content:"";width:28px;height:1px;background:#E7A787}
.hero h1{font-weight:400;font-size:clamp(2.7rem,6.2vw,5.3rem);line-height:1.02;letter-spacing:-.02em;max-width:15ch}
.hero h1 em{color:#EDB194}
.lede{margin-top:24px;max-width:520px;font-size:1.08rem;color:rgba(255,255,255,.8)}
.start{margin-top:34px;display:flex;gap:10px;max-width:720px;flex-wrap:wrap}
.start input{flex:1 1 0;min-width:170px;min-height:50px;padding:0 20px;border-radius:999px;border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;font:inherit;backdrop-filter:blur(6px)}
.start input:focus{border-color:rgba(255,255,255,.6);outline:none}
.start input::placeholder{color:rgba(255,255,255,.55)}
.start .btn{min-height:50px}
.start-help{margin-top:12px;font-size:.85rem;color:rgba(255,255,255,.6)}
.start-err{margin-top:8px;font-size:.88rem;color:#F3B9A3;min-height:1px}
.welcome{margin-top:34px;max-width:600px}
.welcome>p:first-child{font-size:1.05rem;color:rgba(255,255,255,.85)}
.welcome b{color:#fff;font-weight:600}
.welcome-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}
.welcome .btn-line{color:#fff;border-color:rgba(255,255,255,.35)}
.welcome .btn-line:hover{border-color:#fff}
.sync{margin-top:12px;font-size:.82rem;color:rgba(255,255,255,.55)}
.hero-meta{margin-top:30px;font-size:.88rem;color:rgba(255,255,255,.65);display:flex;gap:26px;flex-wrap:wrap}
.hero-meta b{color:#fff;font-weight:500;font-family:var(--serif);font-size:1.15rem;margin-right:4px}

/* How */
.how{padding-top:clamp(72px,10vw,128px);padding-bottom:clamp(56px,7vw,88px)}
.how-head{max-width:640px}
.how-steps{list-style:none;padding:0;margin:52px 0 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.how-steps li{padding:26px 28px 0 0;border-top:1px solid var(--line-2);margin-right:28px}
.how-steps li:last-child{margin-right:0}
.how-steps b{font-family:var(--serif);font-style:italic;font-weight:400;font-size:1.05rem;color:var(--accent-ink)}
.how-steps h3{margin:10px 0 8px;font-size:1.08rem}
.how-steps p{color:var(--ink-2);font-size:.94rem}
.path{margin-top:72px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:30px clamp(22px,3vw,40px)}
.path ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;counter-reset:p}
.path li{counter-increment:p;flex:1;min-width:110px;padding:10px 14px 10px 0;font-family:var(--serif);font-weight:500;font-size:1.25rem;position:relative}
.path li::before{content:counter(p,decimal-leading-zero);display:block;font-family:var(--sans);font-size:.72rem;color:var(--ink-3);font-weight:500;letter-spacing:.1em;margin-bottom:6px}
.path li:not(:last-child)::after{content:"";position:absolute;right:20px;top:58%;width:6px;height:6px;border-top:1px solid var(--accent);border-right:1px solid var(--accent);transform:rotate(45deg)}

/* Curriculum */
.curriculum{background:var(--paper-2);padding:clamp(72px,10vw,128px) 0}
.cur-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.cur-sum{color:var(--ink-2);max-width:34ch}
.modules{display:flex;flex-direction:column;gap:16px}
.mod{background:var(--card);border-radius:var(--r-lg);border:1px solid var(--line);overflow:hidden;display:grid;grid-template-columns:1fr}
.mod.has-img{grid-template-columns:1.4fr 1fr}
.mod-body{padding:clamp(24px,3.2vw,40px);display:grid;grid-template-columns:110px 1fr;gap:26px}
.mod-layer{font-family:var(--serif);font-style:italic;font-weight:400;font-size:3.4rem;line-height:.95;color:var(--accent)}
.mod-layer small{display:block;font-family:var(--sans);font-style:normal;font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3);margin-bottom:10px;font-weight:500}
.mod h3{font-family:var(--serif);font-size:clamp(1.6rem,2.4vw,2.05rem);font-weight:500;letter-spacing:-.01em;line-height:1.1}
.mod-sub{color:var(--ink-3);font-size:.9rem;margin-top:6px}
.mod-blurb{color:var(--ink-2);margin-top:14px;max-width:60ch}
.mod-prog{display:flex;align-items:center;gap:12px;margin-top:18px;font-size:.82rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.mod-prog .bar{flex:0 0 130px}
.lessons{list-style:none;padding:0;margin:20px 0 0;border-top:1px solid var(--line)}
.lessons li{border-bottom:1px solid var(--line)}
.lessons button{width:100%;display:flex;align-items:center;gap:16px;background:none;border:0;text-align:left;padding:14px 6px;min-height:54px;color:var(--ink);border-radius:var(--r-sm);transition:background .15s}
.lessons button:hover{background:var(--paper)}
.l-num{font-variant-numeric:tabular-nums;font-size:.82rem;color:var(--ink-3);width:32px;flex:none}
.l-title{flex:1;font-weight:500}
.l-meta{font-size:.78rem;color:var(--ink-3);white-space:nowrap}
.l-state{width:20px;height:20px;border-radius:50%;border:1.5px solid var(--line-2);flex:none;display:grid;place-items:center}
.done .l-state{background:var(--ok);border-color:var(--ok)}
.done .l-state::after{content:"";width:7px;height:4px;border:1.5px solid #fff;border-top:0;border-right:0;transform:rotate(-45deg) translate(1px,-1px)}
.done .l-meta{color:var(--ok)}
.locked button{cursor:not-allowed}
.locked .l-title,.locked .l-num{color:var(--ink-3)}
.locked .l-state{border:0;width:20px;height:20px;background:no-repeat center/14px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%237F786F' stroke-width='1.8'%3E%3Crect x='5' y='11' width='14' height='9' rx='2'/%3E%3Cpath d='M8 11V8a4 4 0 0 1 8 0v3'/%3E%3C/svg%3E")}
.locked button:hover{background:none}
.nudge{animation:nudge .45s}
@keyframes nudge{20%,60%{transform:translateX(-4px)}40%,80%{transform:translateX(4px)}}
.mod-img{position:relative;min-height:260px}
.mod-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}

/* Glossary */
.glossary{padding-top:clamp(72px,10vw,128px);padding-bottom:clamp(40px,5vw,64px);display:grid;grid-template-columns:1fr 2fr;gap:56px;align-items:start}
.glo-head{position:sticky;top:100px}
.glo-head p:not(.kicker){color:var(--ink-2);margin-top:14px}
.glo-head input{margin-top:24px;width:100%;min-height:48px;padding:0 20px;border-radius:999px;border:1px solid var(--line-2);background:var(--card);font:inherit;color:var(--ink)}
.glo-list{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:0 36px}
.glo-list div{padding:18px 0;border-bottom:1px solid var(--line)}
.glo-list dt{font-family:var(--serif);font-weight:500;font-size:1.12rem}
.glo-list dd{margin:4px 0 0;color:var(--ink-2);font-size:.94rem}
.glo-empty{color:var(--ink-3);grid-column:1/-1;padding:16px 0}

/* Finish */
.cert-cta{margin-top:28px;margin-bottom:clamp(72px,9vw,120px);background:var(--blush);border-radius:var(--r-lg);padding:clamp(28px,4.5vw,52px);display:flex;justify-content:space-between;align-items:center;gap:28px;flex-wrap:wrap}
.cert-cta h2{font-size:clamp(1.7rem,2.8vw,2.3rem);max-width:20ch}
.cert-cta p:not(.kicker){color:var(--ink-2);margin-top:12px;max-width:56ch}
.cert-btns{display:flex;gap:10px;flex-wrap:wrap}

/* Lesson */
.lesson-top{background:var(--paper-2);border-bottom:1px solid var(--line);padding:30px 0 36px}
.crumbs{display:flex;align-items:center;gap:12px;font-size:.85rem;color:var(--ink-3);flex-wrap:wrap}
.crumbs .dot{width:3px;height:3px;border-radius:50%;background:var(--ink-3)}
.crumbs button{background:none;border:0;color:var(--ink);padding:6px 0;font-weight:500}
.crumbs button:hover{color:var(--accent-ink)}
.lesson-top h1{font-weight:500;font-size:clamp(1.9rem,3.6vw,2.9rem);margin-top:16px;max-width:26ch}
.lesson-goal{margin-top:14px;color:var(--ink-2);max-width:68ch;font-size:1.04rem}
.lesson-grid{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);grid-template-areas:'vid checks' 'notes checks';grid-template-rows:auto 1fr;column-gap:36px;padding-top:36px;padding-bottom:56px;align-items:start}
.vid-col{grid-area:vid}.notes-col{grid-area:notes;align-self:start}.lesson-grid .checks{grid-area:checks}
.video{position:relative;aspect-ratio:16/9;background:#111;border-radius:var(--r-lg);overflow:hidden}
.video iframe,.video #ytp{position:absolute;inset:0;width:100%;height:100%;border:0}
.poster{position:absolute;inset:0;width:100%;height:100%;padding:0;border:0;background:#111;color:#fff;display:block}
.poster img{width:100%;height:100%;object-fit:cover;opacity:.82;transition:opacity .3s,transform .6s}
.poster:hover img{opacity:.95;transform:scale(1.015)}
.play{position:absolute;left:50%;top:50%;width:72px;height:72px;margin:-36px 0 0 -36px;border-radius:50%;background:rgba(255,253,249,.94);color:var(--accent-ink);display:grid;place-items:center;box-shadow:0 10px 34px rgba(0,0,0,.28);transition:transform .25s}
.play svg{margin-left:3px}
.poster:hover .play{transform:scale(1.06)}
.poster-label{position:absolute;left:16px;bottom:14px;font-weight:500;font-size:.84rem;background:rgba(24,22,20,.7);padding:6px 12px;border-radius:999px}
.video-note{position:absolute;left:12px;right:12px;top:12px;background:var(--card);color:var(--ink);padding:10px 14px;border-radius:var(--r-sm);font-size:.9rem}
.video-err{position:absolute;inset:0;display:grid;place-items:center;color:#fff;padding:24px;text-align:center}
.video-cap{font-size:.82rem;color:var(--ink-3);margin-top:12px}
.video-cap a{color:var(--accent-ink);font-weight:500}
.watch{margin-top:16px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:14px 18px}
.watch-row{display:flex;justify-content:space-between;font-size:.88rem;color:var(--ink-2);margin-bottom:8px}
.watch-row b{font-weight:600;font-variant-numeric:tabular-nums;color:var(--ink)}
.watch p{font-size:.84rem;color:var(--ink-3);margin-top:8px}
.watch.ok{border-color:rgba(61,116,87,.35);background:var(--ok-soft)}
.watch.ok .bar i{background:var(--ok)}
.watch-note{margin-top:14px;font-size:.84rem;color:var(--ink-3);padding:10px 14px;border:1px dashed var(--line-2);border-radius:var(--r-sm)}
.notes{margin-top:30px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.notes h2,.checks h2,.story h2,.example h2{font-family:var(--serif);font-size:1.45rem;font-weight:500}
.notes ul{margin:16px 0 0;padding:0;list-style:none;counter-reset:n}
.notes li{counter-increment:n;position:relative;padding:12px 0 12px 42px;border-top:1px solid var(--line);color:var(--ink-2)}
.notes li:first-child{border-top:0}
.notes li::before{content:counter(n,decimal-leading-zero);position:absolute;left:0;top:13px;font-family:var(--serif);font-style:italic;font-size:.95rem;color:var(--accent)}
.story{margin-top:30px;background:var(--blush);border-radius:var(--r-lg);padding:28px}
.story .kicker{margin-bottom:8px}
.story ol{list-style:none;margin:18px 0 0;padding:0}
.story li{position:relative;padding:0 0 20px 28px}
.story li:last-child{padding-bottom:0}
.story li::before{content:"";position:absolute;left:3px;top:8px;width:9px;height:9px;border-radius:50%;border:1.5px solid var(--accent);background:var(--blush)}
.story li:not(:last-child)::after{content:"";position:absolute;left:7.5px;top:21px;bottom:3px;width:1px;background:rgba(185,96,63,.3)}
.story li b{display:block;font-weight:600;font-size:.95rem;color:var(--ink);margin-bottom:3px}
.story li p{color:var(--ink-2)}
.example{margin-top:30px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.example table{width:100%;border-collapse:collapse;margin-top:16px;font-variant-numeric:tabular-nums}
.example th{text-align:left;font-weight:400;color:var(--ink-2);padding:11px 0;border-top:1px solid var(--line)}
.example td{text-align:right;font-weight:600;padding:11px 0 11px 12px;border-top:1px solid var(--line);white-space:nowrap}
.example tr.hl th,.example tr.hl td{color:var(--accent-ink);font-weight:600;background:linear-gradient(90deg,transparent,var(--accent-soft) 30%)}
.example p{margin-top:14px;font-size:.87rem;color:var(--ink-3)}
.rules{margin-top:18px;display:grid;grid-template-columns:1fr 1fr;gap:14px}
.rules>div{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px}
.rules h3{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;font-weight:500;margin-bottom:8px}
.rules>div:first-child h3{color:var(--ok)}
.rules>div:last-child h3{color:var(--bad)}
.rules ul{margin:0;padding-left:18px;color:var(--ink-2);font-size:.93rem}
.rules li{margin-top:6px}
.say{margin-top:22px;background:var(--night);color:#fff;border-radius:var(--r-md);padding:22px 24px}
.say b{display:block;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:#E7A787;margin-bottom:10px;font-weight:500}
.say p{font-family:var(--serif);font-size:1.18rem;line-height:1.5}
.checks{position:sticky;top:90px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px}
.checks-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.checks-head span{font-size:.85rem;color:var(--ink-3);font-variant-numeric:tabular-nums}
.checks-sub{color:var(--ink-3);font-size:.88rem;margin-top:6px}
.q{margin-top:22px;padding-top:20px;border-top:1px solid var(--line)}
.q fieldset,.exam-q{border:0;padding:0;margin:0;min-width:0}
.q legend{font-weight:500;padding:0;margin-bottom:10px;line-height:1.45}
.q legend small{display:block;font-size:.7rem;color:var(--accent-ink);letter-spacing:.16em;text-transform:uppercase;margin-bottom:6px;font-weight:500}
.opt{display:flex;gap:12px;align-items:flex-start;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);margin-top:8px;cursor:pointer;transition:border-color .15s,background .15s;font-size:.94rem;line-height:1.45;background:var(--card)}
.opt:hover{border-color:var(--line-2);background:var(--paper)}
.opt input{margin:3px 0 0;accent-color:var(--accent-ink);width:16px;height:16px;flex:none}
.opt.right{border-color:rgba(61,116,87,.5);background:var(--ok-soft)}
.opt.wrong{border-color:rgba(162,75,62,.5);background:var(--bad-soft)}
.opt.picked{border-color:var(--accent);background:var(--accent-soft)}
.q.locked .opt{cursor:default}
.fb{margin-top:10px;font-size:.89rem;padding:11px 14px;border-radius:var(--r-sm)}
.fb.ok{background:var(--ok-soft);color:#2B5640}
.fb.no{background:var(--bad-soft);color:#7E3328}
.fb b{font-weight:600}
.fb button{margin-left:6px;background:none;border:0;font-weight:600;text-decoration:underline;text-underline-offset:3px;color:inherit;padding:0}
.lesson-done{margin-top:22px;padding:16px 18px;border-radius:var(--r-md);background:var(--ok-soft);color:#2B5640;font-weight:500;display:none}
.lesson-done.show{display:block}
.lesson-wait{margin-top:16px;font-size:.88rem;color:var(--accent-ink)}
.lesson-wait:empty{display:none}
.lesson-nav{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}
.lesson-nav .btn{flex:1;white-space:nowrap}

/* Exam */
.exam-wrap{padding:56px clamp(20px,4vw,44px) 96px;max-width:820px}
.exam-intro h1,.exam-card h1{font-size:clamp(2rem,4vw,3rem);font-weight:400}
.exam-intro>p:not(.kicker){margin-top:18px;color:var(--ink-2);font-size:1.05rem;max-width:58ch}
.exam-status{margin-top:16px!important;font-weight:500;color:var(--ink)!important}
.exam-status.ok{color:var(--ok)!important}
.exam-actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
.exam-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:clamp(24px,4vw,44px)}
.exam-top{display:flex;justify-content:space-between;gap:12px;font-size:.84rem;color:var(--ink-3);flex-wrap:wrap}
.exam-bar{margin:14px 0 28px}
.exam-q legend{font-family:var(--serif);font-size:clamp(1.35rem,2.4vw,1.75rem);line-height:1.3;margin-bottom:14px;font-weight:500}
.exam-nav{display:flex;justify-content:space-between;gap:10px;margin-top:28px}
.result h1 span{display:inline-block;margin-left:10px;font-style:italic;color:var(--accent-ink)}
.result.pass h1 span{color:var(--ok)}
.result>p:not(.kicker){margin-top:14px;color:var(--ink-2)}
.review{margin-top:36px}
.review h2{font-size:1.7rem}
.rev{margin-top:16px;padding:22px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md)}
.rev-m{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--ink-3)}
.rev-q{font-weight:500;margin-top:6px}
.rev-a{margin-top:10px;font-size:.92rem;color:var(--bad)}
.rev-a.good{color:var(--ok);margin-top:4px}
.rev-a span{display:inline-block;min-width:118px;color:var(--ink-3)}
.rev-why{margin-top:10px;font-size:.9rem;color:var(--ink-2)}

/* Certificate */
.cert-wrap{padding:56px 0 88px}
.cert-card{background:#FFFDF8;border:1px solid var(--line);border-radius:6px;padding:clamp(32px,6vw,80px);position:relative;overflow:hidden;max-width:900px;margin:0 auto}
.cert-card::before{content:"";position:absolute;inset:16px;border:1px solid rgba(143,69,43,.3);border-radius:3px;pointer-events:none}
.cert-kicker{text-align:center;font-size:.76rem;letter-spacing:.24em;text-transform:uppercase;color:var(--accent-ink)}
.cert-card h1{text-align:center;font-size:clamp(2.4rem,5.4vw,3.8rem);font-weight:400;margin-top:14px}
.cert-name{text-align:center;margin-top:30px;font-family:var(--serif);font-style:italic;font-size:clamp(2rem,4.6vw,3.1rem);color:var(--accent-ink);border-bottom:1px solid var(--line-2);padding-bottom:14px;max-width:620px;margin-left:auto;margin-right:auto}
.cert-text{text-align:center;color:var(--ink-2);margin-top:20px;max-width:56ch;margin-left:auto;margin-right:auto}
.cert-mods{list-style:none;padding:0;margin:32px auto 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));gap:8px;max-width:720px}
.cert-mods li{font-size:.86rem;padding:10px 12px;border:1px solid var(--line);border-radius:4px}
.cert-mods li span{color:var(--accent);font-family:var(--serif);font-style:italic;margin-right:8px}
.cert-foot{display:flex;justify-content:space-between;margin-top:44px;gap:20px;font-size:.85rem;color:var(--ink-3);flex-wrap:wrap}
.cert-actions{display:flex;justify-content:center;gap:10px;margin-top:26px}

/* Manager */
.admin-wrap{padding:56px clamp(20px,4vw,44px) 96px}
.admin-login{max-width:520px}
.admin-login h1,.admin-head h1{font-size:clamp(2rem,4vw,2.8rem);font-weight:400}
.admin-login>p:not(.kicker),.admin-head p:not(.kicker){margin-top:12px;color:var(--ink-2)}
.admin-form{display:flex;gap:10px;margin-top:22px;flex-wrap:wrap}
.admin-form input{flex:1 1 200px;min-height:48px;padding:0 20px;border-radius:999px;border:1px solid var(--line-2);background:var(--card);font:inherit}
.admin-login .start-err{color:var(--bad)}
.admin-head{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.admin-actions{display:flex;gap:10px}
.table-scroll{overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg)}
.admin-table{width:100%;border-collapse:collapse;font-size:.92rem;min-width:820px}
.admin-table th{white-space:nowrap;text-align:left;font-weight:500;font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);padding:16px 18px;border-bottom:1px solid var(--line)}
.admin-table td{padding:14px 18px;border-bottom:1px solid var(--line);vertical-align:top;font-variant-numeric:tabular-nums}
.admin-table td:last-child{white-space:nowrap}
.admin-table tr:last-child td{border-bottom:0}
.admin-table td span{display:block;font-size:.8rem;color:var(--ink-3)}
.st{font-style:normal;font-size:.8rem;padding:3px 10px;border-radius:999px;background:var(--paper-2);white-space:nowrap}
.st-certified{background:var(--ok-soft);color:var(--ok)}
.st-exam{background:var(--accent-soft);color:var(--accent-ink)}

.foot{background:var(--night);color:rgba(255,255,255,.62);font-size:.85rem;padding:40px 0}
.foot-in{display:flex;flex-direction:column;gap:10px}
.foot-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.foot-brand{color:#fff;font-family:var(--serif);font-size:1.15rem}
.foot-link{color:rgba(255,255,255,.75);text-decoration:none;border-bottom:1px solid rgba(255,255,255,.25)}
.foot-link:hover{color:#fff}
.credits{max-width:90ch}

/* Responsive */
@media (max-width:960px){
  .how-steps{grid-template-columns:1fr 1fr;row-gap:30px}
  .how-steps li:nth-child(2){margin-right:0}
  .mod.has-img{grid-template-columns:1fr}
  .mod-img{min-height:220px;order:-1}
  .lesson-grid{grid-template-columns:1fr;grid-template-areas:'vid' 'checks' 'notes';grid-template-rows:auto}
  .checks{margin-top:24px;position:static}
  .glossary{grid-template-columns:1fr;gap:24px}
  .glo-head{position:static}
}
@media (max-width:640px){
  .nav a{display:none}
  .np-bar{width:70px}
  .start{flex-direction:column}
  .start input,.start .btn{flex:none;width:100%}
  .how-steps{grid-template-columns:1fr}
  .how-steps li{margin-right:0;padding-right:0}
  .mod-body{grid-template-columns:1fr;gap:4px}
  .mod-layer{font-size:2.4rem;display:flex;align-items:baseline;gap:10px}
  .mod-layer small{margin:0}
  .glo-list{grid-template-columns:1fr}
  .rules{grid-template-columns:1fr}
  .example td{white-space:normal}
  .l-meta{display:none}
  .path li:not(:last-child)::after{display:none}
  .path li{min-width:42%}
  .hero{min-height:auto}
  .hero-shade{background:linear-gradient(0deg,rgba(24,22,20,.95) 0%,rgba(24,22,20,.75) 60%,rgba(24,22,20,.4) 100%)}
  .exam-nav .btn{flex:1}
  .rev-a span{display:block}
  .cert-btns{width:100%}.cert-btns .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
@media print{
  .topbar,.foot,.cert-actions,#home,#lesson,#exam,#admin{display:none!important}
  body{background:#fff}
  .cert-wrap{padding:0}
}