/* NKA Academy: Ink & Brass, matching nkatechnologies.io. No external fonts (the CSP is 'self' only). */
:root{--ink:#141820;--ink2:#1b2027;--head:#f4f1ea;--body:#d7d3c8;--muted:#9aa1ac;--brass:#d6bc82;--line:rgba(214,188,130,.16);--panel:#1a2029;
  --brass-deep:#b9985a;--brass-soft:#e6cf9a;--line2:#3b424d;--up:#22b36b;--down:#e05555;--radius:14px}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{background:var(--ink);color:var(--body);font:17px/1.6 Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;max-width:860px;margin:0 auto;padding:0 18px;
  -webkit-font-smoothing:antialiased}
h1,h2,h3{color:var(--head);line-height:1.25;letter-spacing:-.01em;margin:1.6em 0 .5em}
h1{font-size:clamp(1.75rem,4.5vw,2.4rem);font-weight:700;margin-top:.2em}
h2{font-size:1.35rem;font-weight:650}
h3{font-size:1.1rem;font-weight:650}
p{margin:0 0 1em}
a{color:var(--brass);text-decoration:underline;text-decoration-color:rgba(214,188,130,.4);text-underline-offset:3px}
a:hover{color:var(--brass-soft);text-decoration-color:currentColor}
a:focus-visible,button:focus-visible,textarea:focus-visible,input:focus-visible{outline:2px solid var(--brass);outline-offset:3px;border-radius:6px}
strong{color:var(--head);font-weight:650}
code{font:.9em/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--ink2);border:1px solid var(--line);border-radius:6px;padding:.1em .35em}
img{max-width:100%;height:auto}
.muted{color:var(--muted)}
.kicker{color:var(--brass);font-size:.78rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;margin:0 0 .4em}

/* header */
.top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 0;border-bottom:1px solid var(--line);margin-bottom:28px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--head);font-weight:700;font-size:1.1rem;letter-spacing:.02em}
.brand img{height:30px;width:auto}
.brand:hover{color:var(--head)}
.nav{display:flex;align-items:center;gap:10px}
.who{display:flex;align-items:center;gap:8px;text-decoration:none;color:var(--body);max-width:220px}
.who span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.avatar{width:30px;height:30px;border-radius:50%;flex:none;border:1px solid var(--line)}
.avatar.blank{display:inline-block;background:var(--panel)}
.pill{font-size:.8rem;border:1px solid var(--line);border-radius:999px;padding:3px 10px;text-decoration:none}

/* buttons */
.btn{display:inline-block;background:var(--brass);color:var(--ink);border:0;border-radius:10px;padding:11px 20px;font:inherit;font-weight:650;font-size:.95rem;
  text-decoration:none;cursor:pointer;line-height:1.2;transition:background .15s}
.btn:hover{background:var(--brass-soft);color:var(--ink)}
.btn-small{padding:7px 14px;font-size:.85rem}
.btn-quiet{background:transparent;color:var(--brass);border:1px solid var(--line)}
.btn-quiet:hover{background:rgba(214,188,130,.08);color:var(--brass-soft)}
.btn-danger{background:transparent;color:#f0a0a0;border:1px solid rgba(224,85,85,.5)}
.btn-danger:hover{background:rgba(224,85,85,.12);color:#ffc4c4}

/* cards */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;margin:0 0 20px}
.card>:last-child{margin-bottom:0}
.card h2:first-child,.card h1:first-child{margin-top:0}

/* landing */
.hero{padding:8px 0 18px}
.lede{font-size:1.1rem;color:var(--body);max-width:40em}
.cta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.cta span{color:var(--muted);font-size:.95rem}
.progress p{color:var(--muted);font-size:.95rem;margin:.5em 0 0}
progress{width:100%;height:10px;border:0;border-radius:999px;background:var(--ink2);overflow:hidden;-webkit-appearance:none;appearance:none}
progress::-webkit-progress-bar{background:var(--ink2);border-radius:999px}
progress::-webkit-progress-value{background:var(--brass);border-radius:999px}
progress::-moz-progress-bar{background:var(--brass);border-radius:999px}
.level header{display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 12px;margin-bottom:8px}
.level header .kicker{width:100%}
.level h2{margin:0;font-size:1.3rem}
.badge{font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;border-radius:999px;padding:3px 10px;align-self:center}
.badge.free{color:var(--up);border:1px solid rgba(34,179,107,.45)}
.badge.premium{color:var(--brass);border:1px solid rgba(214,188,130,.5)}
.join{font-size:.92rem;color:var(--muted);margin:0 0 8px}
.lessons{list-style:none;margin:0;padding:0}
.lesson{border-top:1px solid rgba(255,255,255,.05)}
.lesson>a,.lesson>.row{display:flex;align-items:center;gap:14px;padding:11px 8px;border-radius:10px;text-decoration:none;color:var(--body)}
.lesson>a:hover{background:rgba(214,188,130,.06);color:var(--head)}
.lesson .num{flex:none;width:28px;height:28px;border-radius:50%;display:grid;place-items:center;font-size:.8rem;font-weight:650;color:var(--muted);border:1px solid var(--line2)}
.lesson .name{flex:1;min-width:0}
.lesson .marks{display:flex;gap:8px;align-items:center;flex:none}
.lesson.closed .name{color:var(--muted)}
.lesson.done .num{background:rgba(34,179,107,.15);border-color:rgba(34,179,107,.5);color:var(--up)}
.lesson.next>a{background:rgba(214,188,130,.08);box-shadow:inset 3px 0 0 var(--brass)}
.mark{font-size:.8rem}
.mark.done{color:var(--up);font-weight:700;font-size:1rem}
.mark.soon{color:var(--muted);font-style:italic}
.mark.up{color:var(--ink);background:var(--brass);border-radius:999px;padding:2px 9px;font-weight:650}

/* lesson */
.crumbs{font-size:.9rem;color:var(--muted);margin-bottom:14px}
.crumbs span{margin:0 6px}
.lesson-body{font-size:1.06rem}
.lesson-body h2{margin-top:2em;padding-top:.2em}
.lesson-body ul,.lesson-body ol{padding-left:1.3em}
.lesson-body li{margin:.3em 0}
blockquote.posts{margin:1.6em 0;padding:16px 20px;background:var(--panel);border-left:4px solid var(--brass);border-radius:0 10px 10px 0;
  font:.92rem/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:var(--head);overflow-wrap:anywhere}
blockquote.posts p:last-child{margin-bottom:0}
figure{margin:1.8em 0}
figure img{display:block;max-width:100%;height:auto;border-radius:10px;border:1px solid var(--line)}
figcaption{font-size:.88rem;color:var(--muted);margin-top:8px;text-align:center}
.try{border-color:rgba(214,188,130,.4);background:linear-gradient(180deg,rgba(214,188,130,.07),rgba(214,188,130,.02)) var(--panel);margin-top:2em}
.try h2{font-size:1.1rem;color:var(--brass);margin:0 0 .4em}
.track{margin:22px 0}
.track.done{color:var(--up);font-weight:650}
.pager{display:flex;justify-content:space-between;gap:14px;margin:30px 0 10px}
.pager a{flex:1;max-width:48%;border:1px solid var(--line);border-radius:12px;padding:12px 16px;text-decoration:none;display:flex;flex-direction:column}
.pager a:hover{background:rgba(214,188,130,.06)}
.pager .next{text-align:right;margin-left:auto}
.pager .dir{font-size:.8rem;color:var(--muted)}
.pager .name{color:var(--head);font-size:.95rem}

/* terms, account, messages */
.prose ul{padding-left:1.3em}
.prose li{margin:.35em 0}
.me{display:flex;align-items:center;gap:16px}
.me .avatar{width:64px;height:64px}
.me h1{margin:0;font-size:1.6rem;overflow-wrap:anywhere}
.me p{margin:0}
dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:20px 0}
dt{color:var(--muted)}
dd{margin:0}
.danger{border-color:rgba(224,85,85,.3)}
.danger h2{color:#f0b0b0;margin-top:0}
.check{display:flex;gap:10px;align-items:flex-start;margin:0 0 14px;font-size:.95rem}
.check input{margin-top:5px;accent-color:var(--brass)}
.message{text-align:center;padding:40px 24px}
.message .preview{text-align:left;max-width:620px;margin:0 auto 18px;padding-left:14px;border-left:3px solid var(--brass);color:var(--body)}

/* admin */
.admin-list{list-style:none;padding:0;margin:0}
.admin-row header{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.admin-row h2{margin:0;font-size:1.05rem;flex:1;min-width:200px}
.admin-row .num{font:.8rem ui-monospace,Menlo,monospace;color:var(--muted)}
.status{font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;border-radius:999px;padding:3px 10px;border:1px solid var(--line2);color:var(--muted)}
.status.approved{color:var(--up);border-color:rgba(34,179,107,.5)}
.status.changed{color:#f2b155;border-color:rgba(242,177,85,.5)}
.notes{list-style:none;padding:0;margin:12px 0;font-size:.92rem}
.notes li{border-left:2px solid var(--line2);padding-left:10px;margin:6px 0}
.actions{display:flex;gap:10px;margin:14px 0 10px;flex-wrap:wrap}
.note{display:grid;gap:6px}
.note label{font-size:.85rem;color:var(--muted)}
.note button{justify-self:start}
textarea{width:100%;background:var(--ink2);color:var(--head);border:1px solid var(--line2);border-radius:10px;padding:10px 12px;font:inherit;font-size:.95rem;resize:vertical}
.preview-bar{border-style:dashed}

/* footer */
.foot{margin:56px 0 0;padding:28px 0 40px;border-top:1px solid var(--line);color:var(--muted);font-size:.85rem;text-align:center}
.foot-logo{width:120px;height:auto;filter:brightness(0) invert(1);opacity:.55;margin:0 auto 12px;display:block}
.disclaimer{max-width:44em;margin:0 auto 10px}
.foot a{color:var(--muted)}

@media (max-width:560px){
  body{font-size:16px;padding:0 14px}
  .card{padding:18px 16px}
  .top{padding:14px 0;margin-bottom:20px}
  .brand span{font-size:1rem}
  .who span{display:none}
  .lesson>a,.lesson>.row{gap:10px;padding:10px 4px}
  .mark.soon{font-size:.72rem}
  .pager{flex-direction:column}
  .pager a{max-width:none}
  .pager .next{margin-left:0}
}