/* CYBER_VECTOR — certifications. Uses your existing variables if defined, else the brief's palette. */
#certifications {
  --c-bg: var(--bg, #030505);
  --c-panel: var(--panel, #07100d);
  --c-accent: var(--accent, #00ff41);
  --c-accent2: var(--accent-2, #00c853);
  --c-text: var(--text, #f5f5f5);
  --c-muted: var(--muted, #8a9a90);
  --c-danger: #ff304f;
  --c-info: #00a8ff;
  --c-line: rgba(0, 255, 65, 0.16);
  padding: clamp(3rem, 8vw, 6rem) clamp(1rem, 5vw, 4rem);
  max-width: 1280px;
  margin: 0 auto;
  color: var(--c-text);
  scroll-margin-top: 5rem;
}
#certifications *, #certifications *::before, #certifications *::after { box-sizing: border-box; }
#certifications h2 { margin: 0 0 .4rem; letter-spacing: .06em; }
.cert-sub { color: var(--c-muted); margin: 0 0 2rem; max-width: 60ch; }

/* stats */
.cert-stats { display: flex; flex-wrap: wrap; gap: 2.5rem; margin-bottom: 2rem; }
.cert-stat { display: flex; flex-direction: column; }
.cert-stat__value { font-size: 2rem; line-height: 1; color: var(--c-accent); font-variant-numeric: tabular-nums; }
.cert-stat__label { color: var(--c-muted); font-size: .72rem; letter-spacing: .14em; margin-top: .35rem; }

/* toolbar */
.cert-toolbar { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; margin-bottom: 1.75rem; }
.cert-search {
  flex: 1 1 260px; max-width: 360px; padding: .7rem .9rem;
  background: var(--c-panel); color: var(--c-text);
  border: 1px solid var(--c-line); border-radius: 6px; font: inherit; font-size: .85rem;
}
.cert-search::placeholder { color: var(--c-muted); }
.cert-filters { display: flex; gap: .5rem; overflow-x: auto; max-width: 100%; padding-bottom: 4px; scrollbar-width: thin; }
.cert-chip {
  flex: none; padding: .45rem .85rem; font: inherit; font-size: .72rem; letter-spacing: .1em; cursor: pointer;
  background: transparent; color: var(--c-muted); border: 1px solid var(--c-line); border-radius: 999px;
  transition: color .2s, border-color .2s, background .2s;
}
.cert-chip:hover { color: var(--c-text); border-color: var(--c-accent2); }
.cert-chip[aria-pressed="true"] { color: var(--c-bg); background: var(--c-accent); border-color: var(--c-accent); }

/* focus */
#certifications :focus-visible, .cert-modal :focus-visible { outline: 2px solid var(--c-info); outline-offset: 2px; }

/* status */
.cert-status { padding: 3rem 1rem; text-align: center; border: 1px dashed var(--c-line); border-radius: 8px; }
.cert-status[hidden] { display: none; }
.cert-status__title { margin: 0; letter-spacing: .14em; font-size: .85rem; }
.cert-status__sub { margin: .5rem 0 0; color: var(--c-muted); font-size: .85rem; }
.cert-status[data-kind="error"] .cert-status__title { color: var(--c-danger); }
.cert-scan { height: 2px; width: min(240px, 60%); margin: 1.25rem auto 0; background: var(--c-line); position: relative; overflow: hidden; }
.cert-scan::after { content: ""; position: absolute; inset: 0 auto 0 0; width: 35%; background: var(--c-accent); animation: cert-scan 1.1s ease-in-out infinite; }
@keyframes cert-scan { from { transform: translateX(-100%); } to { transform: translateX(300%); } }

/* grid */
.certificates-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.5rem; }
@media (max-width: 1024px) { .certificates-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) {
  .certificates-grid { grid-template-columns: 1fr; gap: 1rem; }
  .cert-stats { gap: 1.5rem; }
}

/* card */
.cert-card {
  display: flex; flex-direction: column; min-width: 0;
  background: var(--c-panel); border: 1px solid var(--c-line); border-radius: 10px; overflow: hidden;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .35);
  transition: border-color .25s, transform .25s;
}
.cert-card:hover { border-color: var(--c-accent2); transform: translateY(-3px); }
.cert-card__media {
  display: grid; place-items: center; width: 100%; aspect-ratio: 4 / 3; padding: .75rem;
  background: var(--c-bg); border: 0; border-bottom: 1px solid var(--c-line); cursor: zoom-in;
}
.cert-card__media img { max-width: 100%; max-height: 100%; width: 100%; height: 100%; object-fit: contain; border-radius: 6px; }
.cert-card__pdf { color: var(--c-danger); border: 1px solid var(--c-danger); padding: .6rem 1.2rem; border-radius: 6px; letter-spacing: .2em; }
.cert-card__body { display: flex; flex-direction: column; gap: .6rem; padding: 1.1rem; flex: 1; }
.cert-card__tags { display: flex; flex-wrap: wrap; gap: .4rem; }
.cert-tag { font-size: .62rem; letter-spacing: .12em; padding: .2rem .5rem; border: 1px solid var(--c-line); border-radius: 4px; color: var(--c-muted); }
.cert-tag--featured { color: var(--c-accent); border-color: var(--c-accent); }
.cert-tag--pdf { color: var(--c-danger); border-color: var(--c-danger); }
.cert-card__title { margin: 0; font-size: 1.05rem; line-height: 1.3; }
.cert-card__issuer { margin: 0; color: var(--c-muted); font-size: .88rem; }
.cert-card__meta { margin: .2rem 0 0; display: grid; gap: .6rem; }
.cert-card__meta dt { font-size: .62rem; letter-spacing: .14em; color: var(--c-muted); }
.cert-card__meta dd { margin: .15rem 0 0; font-size: .85rem; overflow-wrap: anywhere; }
.cert-card__actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: auto; padding-top: .8rem; }

/* buttons (shared with viewer) */
.cert-btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 40px; padding: .5rem .9rem;
  font: inherit; font-size: .7rem; letter-spacing: .12em; text-decoration: none; cursor: pointer;
  color: var(--c-text, #f5f5f5); background: transparent; border: 1px solid rgba(0, 255, 65, .3); border-radius: 6px;
  transition: background .2s, color .2s, border-color .2s;
}
.cert-btn:hover { border-color: #00ff41; color: #00ff41; }
.cert-btn--primary { background: #00ff41; color: #030505; border-color: #00ff41; }
.cert-btn--primary:hover { background: #00c853; border-color: #00c853; color: #030505; }

/* viewer */
.cert-lock { overflow: hidden; }
.cert-modal { position: fixed; inset: 0; z-index: 10000; display: flex; flex-direction: column; background: rgba(3, 5, 5, .96); }
.cert-modal[hidden] { display: none; }
.cert-modal__bar {
  display: flex; flex-wrap: wrap; gap: .75rem; align-items: center; justify-content: space-between;
  padding: .75rem 1rem; padding-top: max(.75rem, env(safe-area-inset-top));
  border-bottom: 1px solid rgba(0, 255, 65, .16); color: #f5f5f5; font-size: .8rem;
}
.cert-modal__title { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1 1 200px; }
.cert-modal__tools { display: flex; flex-wrap: wrap; gap: .4rem; }
.cert-modal__stage { flex: 1; min-height: 0; display: grid; place-items: center; overflow: hidden; touch-action: none; cursor: zoom-in; }
.cert-modal__stage.is-zoomed { cursor: grab; }
.cert-modal__img { max-width: 96%; max-height: 96%; object-fit: contain; border-radius: 6px; transform-origin: center; user-select: none; will-change: transform; }

@media (prefers-reduced-motion: reduce) {
  .cert-card, .cert-chip, .cert-btn { transition: none; }
  .cert-scan::after { animation: none; width: 100%; }
}