/* roadmap-f2.css -- main roadmap page skin (redesign-v1). White bg, split hero with
   chart-led figure, per-role signature-viz cards, numbered milestone curriculum with a
   FREE/Interactive/Quiz badge hierarchy, foundation-vs-specialization fork, project cards
   with thumbnails + colored filter pills. Rendering stays data-driven in roadmap-f2.js. */
:root{
  --bg:#ffffff;--paper:#fbfaf6;--card:#ffffff;--ink:#14161b;--body:#4b5058;--faint:#868b94;
  --line:#e7e5dd;--line2:#f0eee7;--faint2:#b9bdc4;
  --core:#2563a8;--ds:#1f7a55;--ts:#b5631a;--res:#a8322c;--dev:#4b45b8;--pro:#9a7320;--free:#1f7a55;
  --c:var(--core);
  --r:16px;--ease:cubic-bezier(.2,.7,.3,1);
  --sh1:0 1px 2px rgba(20,23,28,.04),0 4px 14px rgba(20,23,28,.05);
  --sh2:0 18px 40px -18px rgba(20,23,28,.22),0 2px 8px rgba(20,23,28,.06);
  --sh3:0 34px 70px -30px rgba(20,23,28,.34),0 6px 18px rgba(20,23,28,.08);
  --mono:ui-monospace,SFMono-Regular,"SF Mono","Cascadia Code",Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html,body{overflow-x:clip}
body{background:var(--bg);color:var(--ink);
  font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:"Inter Tight",Inter,sans-serif;margin:0;letter-spacing:-.02em;line-height:1.08;font-weight:700}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.disp{font-weight:800}
.mono{font-family:var(--mono);font-feature-settings:"tnum"}
u{text-decoration:none;position:relative;white-space:nowrap}
u::after{content:"";position:absolute;left:0;right:0;bottom:.06em;height:.28em;background:linear-gradient(90deg,rgba(37,99,168,.24),rgba(31,122,85,.24));border-radius:3px;z-index:-1}

/* progress bar */
.prog{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--core),var(--ds));z-index:60;transition:width .1s linear}

/* ---------- NAV ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(251,250,246,.86);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;gap:20px;height:62px;flex-wrap:nowrap;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:"Inter Tight";font-weight:700;font-size:18px;letter-spacing:-.02em;color:var(--ink);white-space:nowrap;flex:none}
.brand span{white-space:nowrap}
.brand .co{color:var(--faint)}
.brand-mark{position:relative;display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:#16233a;color:#fff;font-family:"Inter Tight",Inter,sans-serif;font-weight:700;font-size:18px;line-height:1;letter-spacing:-.03em;flex:none}
.brand-mark::after{content:"";position:absolute;right:6px;bottom:6px;width:5px;height:5px;border-radius:50%;background:#1f9d5b}
.nav .links{display:flex;gap:4px;margin-left:8px}
.nav .links a{padding:8px 12px;border-radius:9px;font-weight:600;font-size:14.5px;color:var(--body)}
.nav .links a:hover{background:var(--line2);color:var(--ink)}
.nav .links a.on{color:var(--ink)}
.nav .right{margin-left:auto;display:flex;align-items:center;gap:12px;flex:none;white-space:nowrap}
.btn{display:inline-flex;align-items:center;gap:6px;background:var(--ink);color:#fff;padding:9px 15px;border-radius:11px;font-weight:600;font-size:14px;white-space:nowrap;flex:none;transition:transform .18s var(--ease),box-shadow .25s var(--ease)}
.btn:hover{background:#000;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn .a{transition:transform .2s var(--ease)}.btn:hover .a{transform:translateX(3px)}
@media(max-width:760px){.nav .links{display:none}}
@media(max-width:560px){.nav .wrap{gap:12px;padding-left:16px;padding-right:16px}.brand{white-space:nowrap}}
@media(max-width:430px){.nav .wrap{gap:8px;padding-left:12px;padding-right:12px}.brand{font-size:16px;gap:8px}.brand-mark{width:26px;height:26px;font-size:15px}.btn{padding:8px 12px;font-size:13px}.btn .a{display:none}}
@media(max-width:360px){.nav .wrap{gap:6px;padding-left:10px;padding-right:10px}.brand{font-size:15px}.btn{padding:7px 10px;font-size:12.5px}}

/* ---------- HERO ---------- */
.hero{position:relative;padding:52px 0 34px;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.hero-bg .grid{position:absolute;inset:-2px;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:46px 46px;opacity:.5;-webkit-mask-image:radial-gradient(120% 90% at 72% 26%,#000 0%,transparent 68%);mask-image:radial-gradient(120% 90% at 72% 26%,#000 0%,transparent 68%)}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hcopy .eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:"IBM Plex Serif",serif;font-style:italic;font-size:15px;color:var(--core);margin-bottom:16px}
h1.hh{font-size:clamp(40px,5.4vw,58px);line-height:1.02}
.hcopy .lede{font-size:18px;color:var(--body);margin:20px 0 26px;max-width:42ch}
.hcta{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.btn-primary{display:inline-flex;align-items:center;gap:9px;background:var(--ink);color:#fff;padding:14px 22px;border-radius:13px;font-weight:600;font-size:16px;box-shadow:var(--sh2);transition:transform .2s var(--ease),box-shadow .2s var(--ease)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--sh3)}
.btn-primary .a{transition:transform .22s var(--ease)}
.btn-primary:hover .a{transform:translateX(4px)}
.btn-ghost{display:inline-flex;align-items:center;font-weight:600;font-size:15px;color:var(--ink);padding:13px 6px;border-bottom:2px solid transparent}
.btn-ghost:hover{border-color:var(--ink)}
.hstats{display:flex;gap:30px;margin-top:34px;flex-wrap:wrap}
.hstats>div b{font-family:"Inter Tight";font-weight:800;font-size:26px;display:block;line-height:1}
.hstats>div span{font-size:12.5px;color:var(--faint);letter-spacing:.02em}

/* hero chart figure (chart-led, no code box) */
.hplayer{position:relative}
.hviz{margin:16px 40px 0;background:transparent;border:none;border-radius:0;padding:0}
.hviz::before{content:"";position:absolute;inset:0;border-radius:20px;padding:1px;background:linear-gradient(150deg,rgba(37,99,168,.5),rgba(31,122,85,.35),transparent 55%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.hviz-chart{position:relative;width:100%}
.hviz-chart svg{width:100%;height:auto;display:block}
.hviz-cap{margin-top:12px;font:400 16px/1.6 Inter,sans-serif;color:var(--ink,#14161b)}.hviz-cap b{font-weight:600}
.hviz-cap b{font-family:Inter;font-style:normal;font-weight:600;color:var(--ink)}

/* ---------- ROLE CARDS ---------- */
.roles{padding:22px 0 40px}
.roles-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;margin-bottom:8px;flex-wrap:wrap}
.roles-head h2{font-size:clamp(24px,3vw,30px)}
.roles-head p{color:var(--body);font-size:15px;margin:6px 0 0}
.rlabel{font-family:"IBM Plex Serif",serif;font-style:italic;color:var(--faint);font-size:14px;margin:22px 0 12px;display:flex;align-items:center;gap:12px}
.rlabel::after{content:"";flex:1;height:1px;background:var(--line)}
.rgrid{display:grid;gap:18px}
.rgrid.core{grid-template-columns:repeat(2,1fr)}
.rgrid.spec{grid-template-columns:repeat(4,1fr);margin-top:12px}
.rcard{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--sh1);transition:transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);display:flex;flex-direction:column}
.rcard::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:var(--c)}
.rcard:hover{transform:translateY(-5px);box-shadow:var(--sh2);border-color:color-mix(in srgb,var(--c) 40%,var(--line))}
.rcard .rviz{aspect-ratio:410/168;background:linear-gradient(180deg,color-mix(in srgb,var(--c) 5%,#fff),#fff);border-bottom:1px solid var(--line2);overflow:hidden;position:relative}
.rcard .rviz svg{position:absolute;inset:0;width:100%;height:100%}
.rcard .rbody{padding:15px 16px 16px;display:flex;flex-direction:column;gap:7px;flex:1}
.rcard .reye{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--c)}
.rcard h3{font-size:17px;letter-spacing:-.01em}
.rcard.spec h3{font-size:16px}
.rcard .rout{font-family:"IBM Plex Serif",serif;font-size:13.5px;color:var(--body);line-height:1.4}
.rcard .rmeta{margin-top:auto;padding-top:10px;display:flex;flex-wrap:wrap;gap:6px}
.rcard .rmeta span{font-size:11px;font-weight:600;color:var(--body);background:var(--line2);padding:3px 8px;border-radius:20px}
.rcard .rmeta span.free{color:var(--free);background:rgba(31,122,85,.1)}
.rcard .rgo{position:absolute;right:14px;bottom:14px;width:26px;height:26px;border-radius:50%;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center;opacity:0;transform:translateX(-4px);transition:opacity .2s,transform .2s}
.rcard .rgo svg{width:14px;height:14px}
.rcard:hover .rgo{opacity:1;transform:none}

/* ---------- CURRICULUM ---------- */
.section{padding:40px 0}
.shead{display:flex;gap:18px;align-items:flex-start;margin-bottom:26px}
.shead .snum{font-family:"Inter Tight";font-weight:800;font-size:15px;color:#fff;background:var(--ink);width:38px;height:38px;border-radius:11px;display:flex;align-items:center;justify-content:center;flex:none;letter-spacing:0}
.shead h2{font-size:clamp(25px,3.3vw,34px)}
.shead p{color:var(--body);margin:7px 0 0;font-size:15.5px;max-width:60ch}

/* foundation band = PAPER */
.paper{background:var(--paper);border:1px solid var(--line);border-radius:24px;padding:14px 20px 26px;box-shadow:inset 0 1px 0 #fff,var(--sh1);position:relative}
.paper::before{content:"";position:absolute;inset:0;border-radius:24px;background-image:radial-gradient(rgba(20,23,28,.035) 1px,transparent 1px);background-size:20px 20px;pointer-events:none;opacity:.7}
.paper-tag{position:relative;display:inline-flex;align-items:center;gap:8px;font-family:"IBM Plex Serif",serif;font-style:italic;font-size:13.5px;color:var(--faint);margin:6px 4px 4px}
.paper-tag b{font-family:Inter;font-style:normal;font-weight:700;color:var(--core);letter-spacing:.02em}

/* chapter (level card) */
.chapters{position:relative}
.chapter{position:relative;display:grid;grid-template-columns:56px 1fr;gap:18px;padding:20px 0}
.chbody{min-width:0}
.chapter+.chapter{border-top:1px dashed var(--line)}
.chnum{position:relative}
.chnum b{font-family:"Inter Tight";font-weight:800;font-size:18px;color:var(--c);background:color-mix(in srgb,var(--c) 12%,#fff);border:1.5px solid color-mix(in srgb,var(--c) 34%,#fff);width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center}
.chspine{position:absolute;left:22px;top:50px;bottom:-20px;width:2px;background:linear-gradient(var(--line),transparent)}
.chapter:last-child .chspine{display:none}
.chhead .cheye{font-size:11.5px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;color:var(--c)}
.chhead h3{font-size:21px;margin:3px 0 6px;letter-spacing:-.015em}
.chbecome{color:var(--body);font-size:14.5px;max-width:66ch;margin:0 0 10px}
.chmeta{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}
.chmeta span{font-size:12px;font-weight:600;color:var(--body);background:#fff;border:1px solid var(--line);padding:4px 10px;border-radius:20px;display:inline-flex;align-items:center;gap:6px}
.chmeta span.free{color:var(--free);border-color:rgba(31,122,85,.28);background:rgba(31,122,85,.07)}
.chmeta svg{width:13px;height:13px;opacity:.75}

/* accordion sections */
.secs{display:flex;flex-direction:column;gap:9px;min-width:0}
details.sec{background:var(--card);border:1px solid var(--line);border-radius:13px;overflow:hidden;transition:border-color .2s,box-shadow .2s;min-width:0}
details.sec[open]{box-shadow:var(--sh1);border-color:color-mix(in srgb,var(--c) 26%,var(--line))}
details.sec.pro{background:linear-gradient(180deg,rgba(154,115,32,.045),#fff)}
summary.sm{list-style:none;display:flex;align-items:center;gap:13px;padding:12px 14px;cursor:pointer;user-select:none}
summary.sm::-webkit-details-marker{display:none}
.sm .thumb{flex:none;width:38px;height:38px;border-radius:10px;background:color-mix(in srgb,var(--c) 9%,#fff);color:var(--c);display:flex;align-items:center;justify-content:center;border:1px solid color-mix(in srgb,var(--c) 18%,var(--line))}
.sm.pro .thumb{background:rgba(154,115,32,.09);color:var(--pro);border-color:rgba(154,115,32,.22)}
.sm .thumb svg{width:20px;height:20px}
.sm .sinfo{flex:1;min-width:0}
.sm .stopline{display:flex;align-items:baseline;gap:8px}
.sm .snn{font-family:var(--mono);font-size:11.5px;font-weight:600;color:var(--faint2);flex:none}
.sm .stitle{font-family:"Inter Tight";font-weight:700;font-size:15px;letter-spacing:-.01em}
.sm .ssub{display:block;font-size:12.5px;color:var(--faint);margin-top:1px}
.sm .sright{display:flex;align-items:center;gap:9px;flex:none}
.sm .lcount{font-size:11.5px;color:var(--faint);font-weight:600;white-space:nowrap}
.sm .car{width:9px;height:9px;border-right:2px solid var(--faint2);border-bottom:2px solid var(--faint2);transform:rotate(45deg);transition:transform .2s var(--ease);flex:none;margin-left:2px}
details.sec[open] .car{transform:rotate(-135deg)}

/* section-level chip */
.chip{font-family:Inter;font-size:10.5px;font-weight:700;letter-spacing:.02em;padding:3px 8px 3px 6px;border-radius:20px;display:inline-flex;align-items:center;gap:4px;white-space:nowrap}
.chip svg{width:11px;height:11px}
.chip.free{color:#fff;background:var(--free)}
.chip.pro{color:var(--pro);background:rgba(154,115,32,.12);border:1px solid rgba(154,115,32,.3)}

/* lessons */
.lsns{padding:2px 10px 12px 60px}
.lsn{display:flex;align-items:center;gap:11px;padding:9px 11px;border-radius:10px;transition:background .15s}
.lsn+.lsn{border-top:1px solid var(--line2)}
a.lsn:hover{background:color-mix(in srgb,var(--c) 5%,#fff)}
.lsn .ldot{width:7px;height:7px;border-radius:50%;background:var(--faint2);flex:none}
a.lsn.inter .ldot{background:var(--c)}
a.lsn.quiz .ldot{background:var(--pro)}
.lsn.lk .ldot{background:transparent;border:1.5px solid var(--faint2)}
.lsn .lw{flex:1;min-width:0}
.lsn .lt{font-weight:600;font-size:14px;color:var(--ink)}
.lsn.lk .lt{color:var(--body)}
.lsn .lsub{font-size:12px;color:var(--faint);display:block;line-height:1.35;margin-top:1px}
.lsn .larr{width:15px;height:15px;color:var(--faint2);flex:none;opacity:0;transform:translateX(-3px);transition:opacity .15s,transform .15s}
a.lsn:hover .larr{opacity:1;transform:none;color:var(--c)}

/* lesson badge hierarchy */
.lb{flex:none;font-family:Inter;font-weight:700;letter-spacing:.01em;font-size:10.5px;display:inline-flex;align-items:center;gap:4px;padding:3px 8px;border-radius:20px}
.lb svg{width:11px;height:11px}
.lb.inter{color:var(--c);background:transparent;border:1.3px solid color-mix(in srgb,var(--c) 42%,var(--line))}
.lb.quiz{color:#6d5111;background:linear-gradient(180deg,#fbeec4,#f4e0a3);border:1px solid rgba(154,115,32,.35);box-shadow:inset 0 1px 0 rgba(255,255,255,.5)}
.lb.pro{color:var(--pro);background:rgba(154,115,32,.1);border:1px solid rgba(154,115,32,.28)}
.lb.soon{color:var(--faint);background:var(--line2)}
.lb.read{color:var(--free);background:rgba(31,122,85,.08)}

/* credential capstone row */
.cred{display:flex;align-items:center;gap:12px;margin-top:12px;padding:13px 16px;border-radius:13px;background:linear-gradient(120deg,color-mix(in srgb,var(--c) 8%,#fff),#fff);border:1px solid color-mix(in srgb,var(--c) 24%,var(--line));position:relative}
.cred .cmark{width:34px;height:34px;flex:none;border-radius:10px;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center}
.cred .cmark svg{width:19px;height:19px}
.cred .ct{font-weight:700;font-family:"Inter Tight";font-size:14.5px}
.cred .cs{font-size:12.5px;color:var(--faint);display:block}
.cred .cver{margin-left:auto;font-size:11px;font-weight:700;color:var(--c);border:1px solid color-mix(in srgb,var(--c) 34%,var(--line));padding:5px 11px;border-radius:20px}

/* ---------- FORK VISUAL ---------- */
.fork{position:relative;margin:6px 0 4px}
.fork-wrap{background:linear-gradient(180deg,#fff,var(--paper));border:1px solid var(--line);border-radius:22px;padding:22px 24px;box-shadow:var(--sh1);text-align:center}
.fork-wrap b{font-family:"Inter Tight";font-weight:800;font-size:clamp(18px,2.4vw,23px);display:block}
.fork-wrap>span{color:var(--body);font-size:14.5px;display:block;margin:6px auto 4px;max-width:56ch}
.fork svg{width:100%;height:auto;max-width:860px;margin:6px auto 0;display:block;overflow:visible}

/* specialization band = TINTED CARDS */
.speclist{display:flex;flex-direction:column;gap:16px}
.speccard{border-radius:22px;padding:6px 22px 22px;border:1px solid;position:relative;overflow:hidden}
.speccard::after{content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;border-radius:50%;background:var(--c);opacity:.05;pointer-events:none}
.spec-ds{--c:var(--ds);background:linear-gradient(180deg,rgba(31,122,85,.06),rgba(31,122,85,.015));border-color:rgba(31,122,85,.22)}
.spec-ts{--c:var(--ts);background:linear-gradient(180deg,rgba(181,99,26,.06),rgba(181,99,26,.015));border-color:rgba(181,99,26,.22)}
.spec-res{--c:var(--res);background:linear-gradient(180deg,rgba(168,50,44,.06),rgba(168,50,44,.015));border-color:rgba(168,50,44,.22)}
.spec-dev{--c:var(--dev);background:linear-gradient(180deg,rgba(75,69,184,.06),rgba(75,69,184,.015));border-color:rgba(75,69,184,.22)}
.speccard .chapter{grid-template-columns:52px 1fr;padding:16px 0}
.speccard .chnum b{background:color-mix(in srgb,var(--c) 16%,#fff)}
.speccard details.sec{background:rgba(255,255,255,.75)}
.spectop{position:relative;display:flex;align-items:center;gap:12px;padding:16px 0 8px}
.spectop .sbadge{width:42px;height:42px;border-radius:12px;background:var(--c);color:#fff;display:flex;align-items:center;justify-content:center;flex:none;box-shadow:var(--sh1)}
.spectop .sbadge svg{width:23px;height:23px}
.spectop .stt{font-family:"Inter Tight";font-weight:800;font-size:12px;letter-spacing:.05em;text-transform:uppercase;color:var(--c)}
.spectop .stx{font-size:12.5px;color:var(--body)}

/* ---------- PROJECTS ---------- */
.pctl{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px}
.pfilt{font-family:Inter;font-weight:600;font-size:13px;padding:8px 15px;border-radius:22px;border:1px solid var(--line);background:#fff;color:var(--body);cursor:pointer;display:inline-flex;align-items:center;gap:7px;transition:transform .15s,box-shadow .15s}
.pfilt .cnt{font-size:11px;font-weight:700;padding:1px 7px;border-radius:20px;background:var(--line2);color:var(--faint)}
.pfilt:hover{transform:translateY(-1px);box-shadow:var(--sh1)}
.pfilt.on{color:#fff;border-color:transparent}
.pfilt.on .cnt{background:rgba(255,255,255,.24);color:#fff}
.pfilt[data-f="All"].on{background:var(--ink)}
.pfilt[data-f="Free"]{color:var(--free);border-color:rgba(31,122,85,.3)} .pfilt[data-f="Free"].on{background:var(--free)}
.pfilt[data-f="Starter"]{color:var(--core);border-color:rgba(37,99,168,.3)} .pfilt[data-f="Starter"].on{background:var(--core)}
.pfilt[data-f="Core"]{color:var(--ds);border-color:rgba(31,122,85,.3)} .pfilt[data-f="Core"].on{background:var(--ds)}
.pfilt[data-f="Advanced"]{color:var(--ts);border-color:rgba(181,99,26,.3)} .pfilt[data-f="Advanced"].on{background:var(--ts)}
.pfilt[data-f="Capstone"]{color:var(--dev);border-color:rgba(75,69,184,.3)} .pfilt[data-f="Capstone"].on{background:var(--dev)}

.pgrid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pcard{--c:var(--core);background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--sh1);display:flex;flex-direction:column;transition:transform .22s var(--ease),box-shadow .22s var(--ease);position:relative}
.pcard:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.pcard .pthumb{position:relative;aspect-ratio:16/7;background:linear-gradient(180deg,color-mix(in srgb,var(--c) 7%,#fff),#fff);border-bottom:1px solid var(--line2);overflow:hidden}
.pcard .pthumb svg{position:absolute;inset:0;width:100%;height:100%}
.pcard .pn{position:absolute;left:12px;top:10px;font-family:"Inter Tight";font-weight:800;font-size:12px;color:var(--c);background:rgba(255,255,255,.85);border:1px solid color-mix(in srgb,var(--c) 22%,var(--line));width:28px;height:28px;border-radius:9px;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(4px)}
.pcard .pfree{position:absolute;right:10px;top:10px;font-size:10px;font-weight:700;letter-spacing:.03em;color:#fff;background:var(--free);padding:3px 8px;border-radius:20px}
.pcard .pbody{padding:13px 15px 15px;display:flex;flex-direction:column;gap:6px;flex:1}
.pcard .pdom{font-size:11px;font-weight:700;letter-spacing:.03em;text-transform:uppercase;color:var(--c)}
.pcard .ptt{font-family:"Inter Tight";font-weight:700;font-size:16px;letter-spacing:-.01em}
.pcard .pdesc{font-size:13px;color:var(--body);line-height:1.4}
.pcard .pfoot{margin-top:auto;padding-top:10px;display:flex;align-items:center;gap:10px}
.pmeter{display:flex;align-items:center;gap:4px}
.pmeter i{width:16px;height:4px;border-radius:3px;background:var(--line)}
.pmeter i.on{background:var(--c)}
.pmeter .ml{font-size:11px;font-weight:600;color:var(--faint);margin-left:5px}
.pcard .psoon{margin-left:auto;font-size:11px;font-weight:600;color:var(--faint);background:var(--line2);padding:3px 9px;border-radius:20px}
/* featured / raised project */
.pcard.feat{grid-column:span 3;flex-direction:row;border-color:color-mix(in srgb,var(--dev) 30%,var(--line));box-shadow:var(--sh2)}
.pcard.feat .pthumb{aspect-ratio:auto;width:38%;min-width:230px;border-bottom:none;border-right:1px solid var(--line2)}
.pcard.feat .pbody{justify-content:center;padding:22px 26px}
.pcard.feat .ptt{font-size:22px}
.pcard.feat .pribbon{position:absolute;left:0;top:16px;background:var(--dev);color:#fff;font-size:10px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;padding:4px 12px 4px 14px;border-radius:0 20px 20px 0;z-index:2}

/* ---------- FINAL CERT BAND ---------- */
.final{margin:30px 0 60px}
.final-in{position:relative;background:linear-gradient(135deg,#14161b,#1d2330 60%,#232b3d);color:#fff;border-radius:24px;padding:44px 40px;display:flex;align-items:center;gap:30px;flex-wrap:wrap;overflow:hidden;box-shadow:var(--sh3)}
.final-in::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(255,255,255,.06) 1px,transparent 1px);background-size:22px 22px;opacity:.6}
.final-in .fglow{position:absolute;right:-60px;top:-80px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(31,122,85,.5),transparent 62%);filter:blur(24px)}
.final-copy{position:relative;flex:1;min-width:260px}
.final-copy h2{font-size:clamp(24px,3vw,32px);color:#fff}
.final-copy p{color:#c3c9d4;margin:10px 0 0;font-size:15.5px;max-width:52ch}
.final-in .btn-primary{position:relative;background:#fff;color:var(--ink)}
.final-in .btn-primary:hover{background:#f2f2ee}
.final-cert{position:relative;flex:none;width:220px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:14px;padding:16px;transform:rotate(-2.4deg)}
.final-cert .cseal{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#e7c66b,#b78e2b);display:flex;align-items:center;justify-content:center;color:#3a2c06;margin-bottom:10px}
.final-cert .cseal svg{width:19px;height:19px}
.final-cert .cn{font-family:"IBM Plex Serif",serif;font-size:12px;color:#aeb6c2}
.final-cert .cname{font-family:"Inter Tight";font-weight:700;font-size:16px;color:#fff;margin:2px 0 8px}
.final-cert .cline{height:1px;background:rgba(255,255,255,.12);margin:8px 0}
.final-cert .csig{font-family:"IBM Plex Serif",serif;font-style:italic;font-size:13px;color:#e7c66b}

/* ---------- FOOTER ---------- */
.foot{border-top:1px solid var(--line);background:var(--paper);margin-top:20px}
.foot .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 24px;flex-wrap:wrap}
.foot span{color:var(--faint);font-size:13.5px}
.foot-links{display:flex;gap:18px;flex-wrap:wrap}
.foot-links a{color:var(--body);font-size:13.5px;font-weight:600}
.foot-links a:hover{color:var(--ink)}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}*{scroll-behavior:auto}}

/* animated viz helpers */
.hv-in{animation:hvin .55s var(--ease) both}
@keyframes hvin{from{opacity:0;transform:translateY(5px)}to{opacity:1;transform:none}}
.hv-pulse{}
@keyframes hvpulse{0%,100%{opacity:1}50%{opacity:.55}}

a:focus-visible,summary:focus-visible,button:focus-visible{outline:2px solid var(--core);outline-offset:3px;border-radius:6px}

/* ---------- RESPONSIVE ---------- */
@media (max-width:960px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hcopy .lede{max-width:none}
  .rgrid.spec{grid-template-columns:repeat(2,1fr)}
  .pgrid{grid-template-columns:repeat(2,1fr)}
  .pcard.feat{grid-column:span 2}
}
@media (max-width:640px){
  .wrap{padding:0 16px}
  .hero{padding:34px 0 26px}
  h1.hh{font-size:34px}
  .hstats{gap:20px}
  .rgrid.core,.rgrid.spec{grid-template-columns:1fr}
  .pgrid{grid-template-columns:1fr}
  .pcard.feat{grid-column:span 1;flex-direction:column}
  .pcard.feat .pthumb{width:100%;min-width:0;aspect-ratio:16/7;border-right:none;border-bottom:1px solid var(--line2)}
  .pcard.feat .ptt{font-size:18px}
  .chapter{grid-template-columns:44px 1fr;gap:12px}
  .speccard .chapter{grid-template-columns:44px 1fr}
  .chnum b{width:40px;height:40px;font-size:16px}
  .chspine{left:20px}
  .lsns{padding-left:16px}
  .paper,.speccard{padding-left:14px;padding-right:14px}
  .final-in{padding:30px 22px}
  .final-cert{width:100%;transform:none}
  .sm .ssub{display:none}
  .shead{gap:12px}
  /* 390px: fixed-width chips/badges starve the flexible title columns.
     Let rows wrap: title takes the first line, tags move to a second line. */
  .sm{flex-wrap:wrap;row-gap:6px}
  .sm .sinfo{flex:1 1 calc(100% - 53px);min-width:calc(100% - 53px)}
  .sm .sright{flex:1 1 100%;display:inline-flex;align-items:center;gap:8px;justify-content:flex-start;padding-left:53px;margin-left:0}
  .lsn{flex-wrap:wrap;row-gap:5px}
  .lsn .lw{flex:1 1 calc(100% - 18px);min-width:calc(100% - 18px)}
  .lsn .ltag{margin-left:18px}
  .lsn .larr{display:none}
}

.ltag{flex:none;display:inline-flex;align-items:center;gap:4px;font:600 10px/1 Inter,sans-serif;letter-spacing:.05em;text-transform:uppercase;border-radius:6px;padding:4px 7px;margin-right:8px}
.ltag.free{color:#155c40;background:#e8f3ee}
.ltag.pro{color:#6b5d1f;background:#faf3d7}