/* vivll.com — certifications showcase v4 (shared by /credentials/ and home).
   Theme-aware via html[data-theme]; reuses the site design tokens.
   Filled certificate thumbnails, floating real-logo plates, full-screen
   certificate viewer (native <dialog>) with a working cursor + zoom/pan.
   Vanilla, local-only, reduced-motion aware. */

/* ---- category jump row: sticky glass + scrollspy ------------------------ */
.cred-jump{position:sticky;top:74px;z-index:5;display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 44px;
  padding:10px;border-radius:18px;border:1px solid var(--line-soft);
  background:color-mix(in srgb,var(--bg) 74%,transparent);
  backdrop-filter:blur(16px) saturate(1.4);-webkit-backdrop-filter:blur(16px) saturate(1.4)}
.cred-jump a{font-size:13px;font-weight:600;color:var(--dim);padding:7px 14px;border-radius:999px;
  border:1px solid transparent;transition:color .25s,background .25s}
.cred-jump a:hover{color:var(--text);background:var(--panel-2);text-decoration:none}
.cred-jump a[aria-current]{color:#fff;background:var(--accent)}

/* ---- category sections -------------------------------------------------- */
.cred-section{scroll-margin-top:150px;margin-top:72px;content-visibility:auto;contain-intrinsic-size:auto 1200px}
.cred-section:first-of-type{margin-top:28px}
.cred-section>h2{display:flex;align-items:baseline;gap:12px;margin:0;padding-bottom:14px;
  border-bottom:1px solid var(--line-soft);font-weight:700;font-size:clamp(21px,3vw,28px);letter-spacing:-.028em}
.cred-section>h2 .cnt{font-size:12px;font-weight:700;color:var(--dim);letter-spacing:0;
  background:var(--panel);border:1px solid var(--line-soft);border-radius:999px;padding:4px 11px}

/* ---- grid + card -------------------------------------------------------- */
.cred-grid{display:grid;gap:22px;margin:26px 0 8px;
  grid-template-columns:repeat(auto-fill,minmax(min(100%,320px),1fr))}
.cert-card{border:1px solid var(--line-soft);border-radius:var(--r-md);background:var(--panel);
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .35s,box-shadow .35s,transform .35s cubic-bezier(.2,.7,.2,1)}
.cert-card:hover{border-color:var(--line);box-shadow:var(--shadow);transform:translateY(-4px)}

/* the certificate paper fills the frame (mats pre-cropped at build time);
   residual cover-crop lands in the cert's own white margin. */
.cert-frame{display:block;position:relative;aspect-ratio:4/3;background:#fff;cursor:zoom-in;overflow:hidden}
.cert-frame::after{content:"";position:absolute;inset:0;pointer-events:none;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.06)}
.cert-frame img{width:100%;height:100%;object-fit:cover;object-position:center;display:block;
  transition:transform .5s cubic-bezier(.2,.7,.2,1)}
.cert-card:hover .cert-frame img{transform:scale(1.035)}
.cert-frame:focus-visible{outline:3px solid var(--focus);outline-offset:-3px}

/* ---- floating real-logo plate + card type ------------------------------- */
.cert-body{padding:0 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.cert-plate{position:relative;z-index:1;width:max-content;max-width:calc(100% - 8px);
  margin:-28px 0 4px;display:grid;place-items:center;min-height:56px;padding:10px 18px;
  background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;box-shadow:var(--shadow-sm)}
.cert-logo{display:block;width:auto;height:auto;max-height:30px;max-width:165px;object-fit:contain}
.cert-plate[data-shape="wide"] .cert-logo{max-height:24px;max-width:185px}
.cert-plate[data-shape="mark"] .cert-logo{max-height:36px}
.cert-issuer-name{font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.cert-title{font-weight:650;font-size:16.5px;line-height:1.3;letter-spacing:-.014em;color:var(--text)}
.cert-gained{font-size:13.5px;font-weight:500;line-height:1.5;color:var(--dim)}
.cert-summary{font-size:13px;line-height:1.55;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.cert-link{color:var(--accent);font-size:13px;font-weight:600;margin-top:auto;padding-top:6px;align-self:flex-start}
.cert-link:hover{text-decoration:underline}

/* ---- home "Certifications" section -------------------------------------- */
.home-certs{display:grid;gap:16px;grid-template-columns:repeat(2,1fr);margin-top:26px}
@media(min-width:720px){.home-certs{grid-template-columns:repeat(3,1fr)}}
@media(min-width:1080px){.home-certs{grid-template-columns:repeat(4,1fr)}}
/* collapsed = exactly two rows at each breakpoint (2 / 3 / 4 columns) */
.home-certs[data-collapsed] > :nth-child(n+5){display:none}
@media(min-width:720px){
  .home-certs[data-collapsed] > :nth-child(n+5){display:block}
  .home-certs[data-collapsed] > :nth-child(n+7){display:none}}
@media(min-width:1080px){
  .home-certs[data-collapsed] > :nth-child(n+7){display:block}
  .home-certs[data-collapsed] > :nth-child(n+9){display:none}}

.mini-cert{display:block;width:100%;text-align:left;padding:0 0 14px;overflow:hidden;cursor:none;
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-md);
  box-shadow:var(--shadow-sm);color:inherit;font:inherit;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.mini-cert:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--line)}
.mini-cert:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
@media(hover:none),(max-width:820px){.mini-cert{cursor:auto}}
.cert-frame.mini{border-radius:0;cursor:inherit}
.cert-plate.sm{min-height:40px;margin:-20px 0 0 14px;padding:7px 12px;border-radius:10px}
.cert-plate.sm .cert-logo{max-height:20px;max-width:105px}
.cert-plate.sm[data-shape="wide"] .cert-logo{max-height:16px;max-width:120px}
.cert-plate.sm[data-shape="mark"] .cert-logo{max-height:24px}
.mini-meta{display:flex;flex-direction:column;gap:4px;margin-top:9px;padding:0 14px;min-width:0}
.mini-meta .cert-issuer-name{font-size:10.5px}
.mini-title{font-size:12.5px;line-height:1.35;color:var(--text);font-weight:600;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.home-certs-actions{display:flex;gap:18px;align-items:center;flex-wrap:wrap;margin-top:26px}
.show-more{padding:11px 24px;border-radius:999px;cursor:pointer;font:inherit;font-weight:600;font-size:14px;
  background:var(--panel);color:var(--text);border:1px solid var(--line);
  display:inline-flex;align-items:center;gap:8px;transition:border-color .25s,background .25s}
.show-more:hover{border-color:var(--accent);background:var(--panel-2)}
.show-more svg{transition:transform .3s}
.show-more[aria-expanded="true"] svg{transform:rotate(180deg)}
.all-creds{font-size:14px;font-weight:600;color:var(--accent)}

/* ---- full-screen certificate viewer (native <dialog>) ------------------- */
html:has(dialog.lb[open]){overflow:hidden}
html:has(dialog.lb[open]) .cur,
html:has(dialog.lb[open]) .cur-dot{visibility:hidden}

dialog.lb{position:fixed;inset:0;width:100vw;height:100dvh;height:100vh;max-width:none;max-height:none;
  margin:0;padding:0;border:0;background:rgba(8,8,10,.9);color:#F5F5F7;overflow:hidden}
@supports((backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px))){
  dialog.lb{background:rgba(8,8,10,.72);
    backdrop-filter:blur(22px) saturate(1.3);-webkit-backdrop-filter:blur(22px) saturate(1.3)}}
dialog.lb::backdrop{background:transparent}

/* cursor restoration — defeats the home page's body{cursor:none} + element rules */
dialog.lb{cursor:default}
dialog.lb *{cursor:inherit}
dialog.lb :is(a,button){cursor:pointer}
dialog.lb .lb-img{cursor:zoom-in}
dialog.lb.zoomed .lb-img{cursor:grab}
dialog.lb.zoomed.panning .lb-img{cursor:grabbing}

.lb-shell{position:relative;display:grid;grid-template-rows:1fr auto;width:100%;height:100%}
.lb-stage{position:relative;display:grid;place-items:center;overflow:hidden;min-height:0;
  padding:64px clamp(64px,8vw,110px) 24px}
.lb-img{max-width:100%;max-height:100%;width:auto;height:auto;background:#fff;border-radius:8px;
  box-shadow:0 30px 90px -20px rgba(0,0,0,.7);
  touch-action:none;user-select:none;-webkit-user-drag:none;will-change:transform;
  transition:transform .35s cubic-bezier(.2,.7,.2,1)}
dialog.lb.panning .lb-img{transition:none}

.lb-bar{display:flex;align-items:center;gap:16px;
  padding:14px clamp(16px,4vw,32px) max(14px,env(safe-area-inset-bottom));
  background:rgba(18,18,22,.55);border-top:1px solid rgba(255,255,255,.09);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.lb-plate{margin:0;min-height:46px;padding:8px 14px;border-radius:12px}
.lb-plate .cert-logo{max-height:26px;max-width:130px}
.lb-id{min-width:0;display:flex;flex-direction:column;gap:3px}
.lb-kicker{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(245,245,247,.55);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
#lb-title{margin:0;font-size:16.5px;font-weight:650;letter-spacing:-.014em;line-height:1.3;
  color:#F5F5F7;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.lb-verify{margin-left:auto;flex:none;display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:999px;background:#fff;color:#111;
  font-size:13.5px;font-weight:700;transition:transform .25s,box-shadow .25s}
.lb-verify:hover{transform:translateY(-1px);box-shadow:0 8px 24px -8px rgba(0,0,0,.6);text-decoration:none}

.lb-ctl{position:absolute;z-index:3;display:grid;place-items:center;width:44px;height:44px;
  border-radius:50%;border:1px solid rgba(255,255,255,.14);background:rgba(28,28,32,.55);
  color:#F5F5F7;font-size:24px;line-height:1;
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  transition:background .25s,border-color .25s}
.lb-ctl:hover{background:rgba(52,52,58,.72);border-color:rgba(255,255,255,.28)}
.lb-ctl:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.lb-close{top:14px;right:14px}
.lb-prev{left:14px;top:50%;transform:translateY(-50%)}
.lb-next{right:14px;top:50%;transform:translateY(-50%)}
.lb-count{position:absolute;top:22px;left:18px;z-index:3;padding:6px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;color:rgba(245,245,247,.65);
  background:rgba(28,28,32,.5);border:1px solid rgba(255,255,255,.1)}

@media(max-width:640px){
  .lb-stage{padding:64px 14px 14px}
  .lb-ctl{width:40px;height:40px}
  .lb-prev{left:8px}.lb-next{right:8px}
  .lb-bar{flex-wrap:wrap;gap:10px 14px}
  #lb-title{white-space:normal;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
  .lb-verify{margin-left:0;width:100%;justify-content:center}
}
@media(prefers-reduced-motion:no-preference){
  dialog.lb{opacity:0;transition:opacity .22s ease,overlay .22s ease allow-discrete,display .22s ease allow-discrete}
  dialog.lb[open]{opacity:1}
  @starting-style{dialog.lb[open]{opacity:0}}
}

/* ---- reduced motion ----------------------------------------------------- */
@media(prefers-reduced-motion:reduce){
  .cert-card,.cert-card:hover,.mini-cert,.mini-cert:hover{transform:none}
  .cert-card:hover .cert-frame img{transform:none}
}
html[data-motion="reduce"] .cert-card,
html[data-motion="reduce"] .cert-card:hover,
html[data-motion="reduce"] .cert-card:hover .cert-frame img,
html[data-motion="reduce"] .mini-cert,
html[data-motion="reduce"] .mini-cert:hover,
html[data-motion="reduce"] .show-more svg{transform:none;transition:none}
html[data-motion="reduce"] dialog.lb{transition:none;opacity:1}
html[data-motion="reduce"] .lb-img{transition:none}