/* ABOUT SECTION: certificate, features, document downloads. Must load AFTER main.css and theme.css */

#about{background:linear-gradient(180deg,var(--off-white) 0%,#fff 100%)}
.ab-container{max-width:1200px;margin:0 auto;padding:0}

/* ---- centered heading ---- */
.ab-head{text-align:center;max-width:720px;margin:0 auto}
.ab-head .section-tag{justify-content:center}
.ab-head .section-tag::after{content:'';display:block;width:22px;height:2px;background:linear-gradient(90deg,var(--teal),var(--blue));border-radius:1px}
.ab-head .section-subtitle{margin-left:auto;margin-right:auto;max-width:620px}

/* ---- two columns: certificate | text ---- */
.ab-grid{display:grid;grid-template-columns:minmax(0,430px) minmax(0,1fr);gap:clamp(40px,6vw,88px);align-items:center;margin-top:64px}

/* ---- certificate ---- */
.ab-cert{position:relative;margin:0;isolation:isolate}
/* soft glow + tilted frame behind the card */
.ab-cert::before{content:'';position:absolute;inset:-8% -12%;z-index:-2;background:radial-gradient(closest-side,rgba(31,107,255,.22),transparent 70%)}
.ab-cert::after{content:'';position:absolute;inset:0;z-index:-1;border-radius:24px;background:linear-gradient(135deg,var(--blue),var(--teal-light));transform:rotate(3.5deg) scale(.97);opacity:.9;transition:transform .5s var(--ease-out)}
.ab-cert:hover::after{transform:rotate(5.5deg) scale(.97)}

.ab-cert-link{display:block;position:relative;background:#fff;border-radius:20px;padding:12px;box-shadow:var(--sh-lg);cursor:zoom-in;overflow:hidden;transition:transform .5s var(--ease-out)}
.ab-cert-link:hover,.ab-cert-link:focus-visible{transform:translateY(-6px)}
.ab-cert-link:focus-visible{outline:3px solid rgba(31,107,255,.55);outline-offset:4px}
.ab-cert-link img{width:100%;height:auto;border-radius:10px;background:var(--light)}

/* zoom button: always a round icon, label slides out on hover */
.ab-zoom-btn{position:absolute;right:24px;bottom:24px;display:inline-flex;align-items:center;gap:0;height:42px;padding:0 12px;border-radius:50px;background:rgba(6,22,49,.88);color:#fff;font:600 12.5px var(--font-ui);box-shadow:var(--sh-md);backdrop-filter:blur(6px);transition:background .3s}
.ab-zoom-label{max-width:0;overflow:hidden;white-space:nowrap;opacity:0;transition:max-width .4s var(--ease-out),opacity .3s,margin .4s var(--ease-out)}
.ab-cert-link:hover .ab-zoom-label,.ab-cert-link:focus-visible .ab-zoom-label{max-width:130px;opacity:1;margin-left:8px}
.ab-cert-link:hover .ab-zoom-btn{background:var(--blue)}

/* floating verified badge, overlapping the card corner */
.ab-verified{position:absolute;left:-18px;bottom:36px;display:inline-flex;align-items:center;gap:10px;background:#fff;color:var(--navy);font:600 13px var(--font-ui);padding:10px 16px 10px 10px;border-radius:50px;border:1px solid var(--border);box-shadow:var(--sh-md);animation:abFloat 6s ease-in-out infinite}
.ab-verified i{display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:50%;background:#00c26e;color:#fff;font-style:normal;font-size:14px;font-weight:700;box-shadow:0 0 0 4px rgba(0,194,110,.18)}
@keyframes abFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

.ab-cert-fallback{display:none;flex-direction:column;align-items:center;justify-content:center;min-height:320px;padding:32px;text-align:center;background:linear-gradient(135deg,var(--glow-b),var(--glow-t));border-radius:10px}
.ab-cert-fallback-icon{font-size:48px;margin-bottom:16px}
.ab-cert-fallback-title{font:700 16px var(--font-head);color:var(--navy);margin-bottom:8px}
.ab-cert-fallback-sub{font-size:12px;color:var(--mid)}

/* ---- text + features ---- */
.ab-title{font-size:clamp(26px,3vw,40px)}
.ab-lead{max-width:none;font-size:16px}
.ab-features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:32px}
.ab-feature{position:relative;display:flex;flex-direction:column;gap:14px;background:#fff;border:1px solid var(--border);border-radius:var(--r);padding:22px;overflow:hidden;transition:transform .35s var(--ease-out),box-shadow .35s,border-color .35s}
.ab-feature::before{content:'';position:absolute;left:0;top:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--teal-light));transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease-out)}
.ab-feature:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:rgba(31,107,255,.3)}
.ab-feature:hover::before{transform:scaleX(1)}
.ab-feature-icon{width:46px;height:46px;display:flex;align-items:center;justify-content:center;background:var(--glow-b);border-radius:12px;font-size:21px}
.ab-feature-text strong{display:block;font:600 15px/1.35 var(--font-ui);color:var(--navy);margin-bottom:6px}
.ab-feature-text span{display:block;font-size:13.5px;line-height:1.6;color:var(--body)}

/* ---- document downloads: navy panel ---- */
.ab-docs-panel{margin-top:72px;padding:clamp(18px,3vw,32px);border-radius:28px;background:linear-gradient(120deg,#061631,#0b2a63);position:relative;overflow:hidden}
.ab-docs-panel::before{content:'';position:absolute;inset:0;background:radial-gradient(520px 220px at 85% 0,rgba(43,181,255,.28),transparent);pointer-events:none}
.ab-docs{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.ab-doc{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#fff;border-radius:20px;padding:28px;transition:transform .35s var(--ease-out),box-shadow .35s}
.ab-doc:hover{transform:translateY(-4px);box-shadow:0 20px 50px rgba(0,0,0,.28)}
.ab-doc-info{min-width:0}
.ab-doc-icon{width:50px;height:50px;display:flex;align-items:center;justify-content:center;background:var(--glow-b);border-radius:14px;font-size:25px;margin-bottom:16px}
.ab-doc h3{font-size:20px;font-weight:700;color:var(--navy);margin-bottom:2px}
.ab-doc-meta{font:600 11px var(--font-ui);letter-spacing:1.2px;text-transform:uppercase;color:var(--mid);margin-bottom:20px}
.ab-btn{padding:12px 22px;background:var(--blue);border-color:var(--blue);color:#fff;box-shadow:0 8px 22px rgba(31,107,255,.3)}
.ab-btn:hover{background:var(--blue-deep);border-color:var(--blue-deep);color:#fff}
.ab-qr{flex:0 0 auto;display:flex;flex-direction:column;align-items:center;gap:8px}
.ab-qr img{width:124px;height:124px;background:#fff;padding:8px;border:1px solid var(--border);border-radius:14px}
.ab-qr .qr-text{margin:0;text-align:center}

/* ---- enlarged certificate (dialog) with open/close animation ---- */
.ab-dialog{border:0;padding:0;background:transparent;max-width:96vw;max-height:96vh;margin:auto;overflow:visible;cursor:zoom-out}
.ab-dialog[open]::backdrop{background:rgba(6,22,49,.84);backdrop-filter:blur(6px);animation:abFadeIn .35s ease both}
.ab-dialog.ab-closing::backdrop{animation:abFadeOut .34s ease both}
.ab-dialog img{display:block;max-width:min(96vw,720px);max-height:92vh;width:auto;height:auto;border-radius:12px;box-shadow:0 30px 90px rgba(0,0,0,.5);background:#fff}
.ab-dialog-close{position:absolute;top:-16px;right:-16px;z-index:2;width:42px;height:42px;border:0;border-radius:50%;background:#fff;color:var(--navy);font:400 26px/1 var(--font-ui);cursor:pointer;box-shadow:var(--sh-md);animation:abPop .5s var(--ease-spring) .2s both;transition:background .2s,color .2s}
.ab-dialog-close:hover{background:var(--blue);color:#fff}
@keyframes abFadeIn{from{opacity:0}to{opacity:1}}
@keyframes abFadeOut{from{opacity:1}to{opacity:0}}
@keyframes abPop{from{opacity:0;transform:scale(.4)}to{opacity:1;transform:none}}
html:has(.ab-dialog[open]){overflow:hidden}

/* ---- responsive ---- */
@media (max-width:1000px){
  .ab-grid{grid-template-columns:1fr;gap:56px;margin-top:48px}
  .ab-cert{width:min(400px,calc(100% - 32px));margin:0 auto}
  .ab-verified{left:-12px}
}
@media (max-width:860px){
  .ab-docs{grid-template-columns:1fr}
}
@media (max-width:600px){
  .ab-features{grid-template-columns:1fr}
  .ab-docs-panel{margin-top:48px;border-radius:22px}
  .ab-doc{padding:22px}
  .ab-doc{flex-direction:column;align-items:stretch;gap:20px}
  .ab-qr{align-self:center}       /* QR sits centred under the button on phones */
  .ab-btn{width:100%;justify-content:center}
  .ab-cert{margin-bottom:24px}
  .ab-verified{left:8px;bottom:-18px;font-size:12.5px}
  .ab-zoom-btn{right:20px;bottom:20px}
  .ab-dialog-close{top:8px;right:8px}
}
@media (prefers-reduced-motion:reduce){
  .ab-verified{animation:none}
}