.certificates { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 285px), 1fr)); gap: 16px; }
.certificate { position: relative; display: flex; flex-direction: column; min-height: 220px; padding: 19px; border: 1px solid var(--faint); border-radius: var(--radius); background: var(--paper-dark); }
.certificate--image { padding-top: 0; overflow: hidden; }
.certificate-preview { width: calc(100% + 38px); margin: 0 -19px 16px; padding: 0; border: 0; background: var(--paper); cursor: zoom-in; }
.certificate-preview img { width: 100%; aspect-ratio: 1.65; object-fit: cover; }
.certificate-preview:focus-visible { outline-offset: -4px; }
.certificate-date { margin-bottom: 17px; color: var(--accent); font-family: var(--script); font-size: 1.25rem; font-weight: 700; }
.certificate-title { font-size: 1.45rem; line-height: 1.05; }
.certificate-org, .certificate-detail { margin-top: 7px; color: var(--mid); }
.certificate-detail { font-size: .95rem; font-style: italic; }
.certificate-verify { margin-top: auto; padding-top: 18px; color: var(--accent); font-weight: 600; }
.certificate-dialog { width: min(900px, calc(100vw - 32px)); max-height: min(90dvh, 800px); padding: 0; border: 1px solid var(--faint); border-radius: var(--radius); background: var(--paper); color: var(--ink); }
.certificate-dialog::backdrop { background: rgb(26 18 8 / .66); }
.certificate-dialog img { max-height: calc(90dvh - 2px); object-fit: contain; }
.dialog-close { position: absolute; top: 8px; right: 8px; z-index: 1; width: 42px; height: 42px; border: 1px solid var(--faint); border-radius: 50%; background: var(--paper); color: var(--ink); font-size: 1.8rem; line-height: 1; cursor: pointer; }
.certificates:not(.expanded) .certificate--extra { display: none; }
.certificates-toggle { cursor: pointer; background: transparent; font-family: inherit; font-size: 1rem; }
.certificates-toggle:hover { background: var(--paper-dark); }
.certificates ~ .btn-row, .rail-hint + .certificates + .btn-row { margin-top: 22px; }
/* teléfonos: el carrusel gana a la rejilla (este archivo se carga después de layout.css) */
@media (max-width: 640px) { .certificates.rail { display: flex; } }