/* ============================================
   CERTIFICACIONES SECTION
   ============================================ */

.certificados {
  background: linear-gradient(160deg, #181c1f 0%, #1e2326 40%, #1a2028 100%);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}

.certificados::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 20%, rgba(28, 182, 152, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 80%, rgba(124, 58, 237, 0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(255, 153, 0, 0.02) 0%, transparent 60%);
  pointer-events: none;
}

.cert-contenido {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 30px;
  position: relative;
  z-index: 1;
}

/* ── Header ────────────────────────────────────────────────────────────── */

.cert-header {
  text-align: center;
  margin-bottom: 56px;
}

.cert-header h2 {
  font-family: 'Righteous', cursive;
  font-size: 3rem;
  color: #fff;
  letter-spacing: 2px;
  margin-bottom: 16px;
  position: relative;
  display: inline-block;
}

.cert-header h2::after {
  content: '';
  display: block;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, #1cb698, #14a085);
  margin: 18px auto 0;
  border-radius: 2px;
}

.cert-descripcion {
  color: rgba(255, 255, 255, 0.65);
  font-size: 1.05rem;
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.75;
}

/* ── Stats ─────────────────────────────────────────────────────────────── */

.cert-stats {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: 40px;
  margin-bottom: 52px;
}

.cert-stat {
  text-align: center;
}

.cert-stat-num,
.cert-stat-text {
  display: block;
  font-family: 'Righteous', cursive;
  font-size: 2.4rem;
  color: #1cb698;
  line-height: 1;
  margin-bottom: 6px;
}

.cert-stat-text {
  font-size: 1.6rem;
  letter-spacing: 1px;
}

.cert-stat-label {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.45);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* ── Filter Tabs ───────────────────────────────────────────────────────── */

.cert-tabs {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 52px;
}

.cert-tab {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.cert-tab i {
  font-size: 0.8rem;
}

.cert-tab-count {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: 0.75rem;
  font-weight: 700;
  min-width: 24px;
  text-align: center;
  transition: background 0.25s;
}

.cert-tab:hover {
  background: rgba(28, 182, 152, 0.08);
  border-color: rgba(28, 182, 152, 0.3);
  color: #1cb698;
  transform: translateY(-1px);
}

.cert-tab.active {
  background: linear-gradient(135deg, rgba(28, 182, 152, 0.18) 0%, rgba(20, 160, 133, 0.1) 100%);
  border-color: rgba(28, 182, 152, 0.5);
  color: #1cb698;
  box-shadow: 0 4px 20px rgba(28, 182, 152, 0.12);
}

.cert-tab.active .cert-tab-count {
  background: rgba(28, 182, 152, 0.25);
  color: #1cb698;
}

/* ── Grid ───────────────────────────────────────────────────────────────── */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 22px;
}

/* ── Card ───────────────────────────────────────────────────────────────── */

@keyframes certCardIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.cert-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.3s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.3s ease;
  opacity: 0;
}

.cert-card.cert-card-anim {
  animation: certCardIn 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.cert-card.cert-oculta {
  display: none;
}

/* Glow layer on hover */
.cert-card-glow {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  opacity: 0;
  transition: opacity 0.4s ease;
  background: radial-gradient(ellipse at 50% 0%, var(--prov-color), transparent 70%);
  pointer-events: none;
}

.cert-card:hover {
  transform: translateY(-6px);
  border-color: rgba(255, 255, 255, 0.14);
}

.cert-card:hover .cert-card-glow { opacity: 0.06; }

/* Per-provider hover glow */
.cert-card[data-prov="aws"]:hover    { box-shadow: 0 14px 40px rgba(255, 153, 0, 0.16), 0 4px 16px rgba(0,0,0,0.4); }
.cert-card[data-prov="cisco"]:hover  { box-shadow: 0 14px 40px rgba(27, 160, 215, 0.16), 0 4px 16px rgba(0,0,0,0.4); }
.cert-card[data-prov="alura"]:hover  { box-shadow: 0 14px 40px rgba(124, 58, 237, 0.16), 0 4px 16px rgba(0,0,0,0.4); }

/* Card header */
.cert-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 20px 14px;
}

.cert-prov-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--prov-color);
  transition: background 0.25s, transform 0.25s;
}

.cert-card:hover .cert-prov-icon {
  background: color-mix(in srgb, var(--prov-color) 14%, transparent);
  transform: scale(1.08);
}

/* Category tags */
.cert-cat-tag {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.cert-cat-cloud       { background: rgba(255, 153, 0, 0.12);  color: #FF9900; border: 1px solid rgba(255,153,0,0.2); }
.cert-cat-redes       { background: rgba(27, 160, 215, 0.12); color: #1BA0D7; border: 1px solid rgba(27,160,215,0.2); }
.cert-cat-desarrollo  { background: rgba(28, 182, 152, 0.12); color: #1cb698; border: 1px solid rgba(28,182,152,0.2); }
.cert-cat-profesional { background: rgba(124, 58, 237, 0.12); color: #a78bfa; border: 1px solid rgba(124,58,237,0.2); }

/* Card body */
.cert-card-body {
  padding: 0 20px 16px;
  flex: 1;
}

.cert-titulo {
  font-size: 0.92rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  line-height: 1.5;
  margin-bottom: 12px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.cert-meta {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.cert-fecha {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
  display: flex;
  align-items: center;
  gap: 6px;
}

.cert-fecha i { color: #1cb698; }

.cert-prov-name {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.3px;
}

/* Card footer */
.cert-card-footer {
  padding: 0 20px 20px;
}

.cert-ver-btn {
  width: 100%;
  padding: 10px 0;
  border-radius: 12px;
  background: transparent;
  border: 1px solid rgba(28, 182, 152, 0.3);
  color: #1cb698;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.cert-ver-btn:hover {
  background: rgba(28, 182, 152, 0.12);
  border-color: #1cb698;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(28, 182, 152, 0.2);
}

/* ── Certificate Modal ───────────────────────────────────────────────────── */

.modal-cert {
  position: fixed;
  inset: 0;
  z-index: 1100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.modal-cert.activo {
  opacity: 1;
  visibility: visible;
}

.modal-cert-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
}

.modal-cert-contenido {
  position: relative;
  background: linear-gradient(145deg, #20272c 0%, #1a1f24 100%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 28px;
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.6);
  transform: scale(0.94) translateY(20px);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  scrollbar-width: thin;
  scrollbar-color: rgba(28,182,152,0.3) transparent;
}

.modal-cert.activo .modal-cert-contenido {
  transform: scale(1) translateY(0);
}

.modal-cert-cerrar {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  z-index: 2;
}

.modal-cert-cerrar:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* Modal body layout */
.modal-cert-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}

/* ── Visual column ─────────────────────────────────────────────────────── */

.modal-cert-visual-col {
  padding: 32px 24px 32px 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.modal-cert-visual {
  width: 100%;
  border-radius: 20px;
  overflow: hidden;
  position: relative;
}

#modal-cert-img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  display: block;
}

/* CSS Certificate Badge */
.modal-cert-badge {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 20px;
  position: relative;
  overflow: hidden;
  display: none;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.modal-cert-badge[data-prov="aws"]   { background: linear-gradient(145deg, #2d1a00 0%, #1a1f24 70%); }
.modal-cert-badge[data-prov="cisco"] { background: linear-gradient(145deg, #071e33 0%, #1a1f24 70%); }
.modal-cert-badge[data-prov="alura"] { background: linear-gradient(145deg, #1c0a47 0%, #1a1f24 70%); }

/* Decorative corner brackets */
.modal-cert-badge::before,
.modal-cert-badge::after {
  content: '';
  position: absolute;
  width: 28px;
  height: 28px;
  border-style: solid;
  border-width: 2px;
  opacity: 0.35;
}

.modal-cert-badge[data-prov="aws"]::before,
.modal-cert-badge[data-prov="aws"]::after   { border-color: #FF9900; }
.modal-cert-badge[data-prov="cisco"]::before,
.modal-cert-badge[data-prov="cisco"]::after { border-color: #1BA0D7; }
.modal-cert-badge[data-prov="alura"]::before,
.modal-cert-badge[data-prov="alura"]::after { border-color: #7C3AED; }

.modal-cert-badge::before {
  top: 14px; left: 14px;
  border-right: none; border-bottom: none;
  border-radius: 4px 0 0 0;
}
.modal-cert-badge::after {
  bottom: 14px; right: 14px;
  border-left: none; border-top: none;
  border-radius: 0 0 4px 0;
}

.badge-content {
  text-align: center;
  padding: 24px;
  position: relative;
  z-index: 1;
}

.badge-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 2rem;
}

.modal-cert-badge[data-prov="aws"]   .badge-icon-wrap { background: rgba(255,153,0,0.12); color: #FF9900; border: 1.5px solid rgba(255,153,0,0.3); }
.modal-cert-badge[data-prov="cisco"] .badge-icon-wrap { background: rgba(27,160,215,0.12); color: #1BA0D7; border: 1.5px solid rgba(27,160,215,0.3); }
.modal-cert-badge[data-prov="alura"] .badge-icon-wrap { background: rgba(124,58,237,0.12); color: #a78bfa; border: 1.5px solid rgba(124,58,237,0.3); }

.badge-prov-name {
  font-size: 0.72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 10px;
}

.badge-divider {
  width: 40px;
  height: 2px;
  margin: 10px auto;
  border-radius: 2px;
}

.modal-cert-badge[data-prov="aws"]   .badge-divider { background: #FF9900; }
.modal-cert-badge[data-prov="cisco"] .badge-divider { background: #1BA0D7; }
.modal-cert-badge[data-prov="alura"] .badge-divider { background: #7C3AED; }

.badge-title-text {
  font-size: 0.88rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.88);
  line-height: 1.45;
  margin-bottom: 10px;
  max-width: 240px;
  margin-left: auto;
  margin-right: auto;
}

.badge-fecha-text {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 1px;
}

/* Action buttons */
.modal-cert-actions {
  display: flex;
  gap: 10px;
  flex-direction: column;
}

.cert-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.3px;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
}

.cert-verify-btn {
  background: linear-gradient(135deg, #1cb698, #14a085);
  color: #fff;
  box-shadow: 0 4px 16px rgba(28, 182, 152, 0.3);
}

.cert-verify-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(28, 182, 152, 0.45);
}

.cert-fullscreen-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.65);
}

.cert-fullscreen-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

/* ── Info column ─────────────────────────────────────────────────────────── */

.modal-cert-info-col {
  padding: 32px 32px 32px 24px;
  border-left: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.modal-cert-prov-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.modal-cert-prov-badge {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.modal-cert-prov-badge[data-prov="aws"]   { background: rgba(255,153,0,0.12); color: #FF9900; border: 1px solid rgba(255,153,0,0.25); }
.modal-cert-prov-badge[data-prov="cisco"] { background: rgba(27,160,215,0.12); color: #1BA0D7; border: 1px solid rgba(27,160,215,0.25); }
.modal-cert-prov-badge[data-prov="alura"] { background: rgba(124,58,237,0.12); color: #a78bfa; border: 1px solid rgba(124,58,237,0.25); }

#modal-cert-prov-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.modal-cert-titulo-wrapper {
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding-bottom: 20px;
}

#modal-cert-titulo {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  line-height: 1.5;
}

.modal-cert-details {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
}

.modal-cert-detail {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.modal-cert-detail > i {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(28, 182, 152, 0.08);
  color: #1cb698;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.modal-cert-detail-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.modal-cert-detail-text small {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.modal-cert-detail-text span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  word-break: break-all;
}

.cert-credid {
  font-family: 'Courier New', monospace;
  font-size: 0.76rem !important;
  color: rgba(28, 182, 152, 0.8) !important;
  letter-spacing: 0.5px;
}

/* ── Mobile tab navigation (arrows) ─────────────────────────────────────── */

.cert-tabs-mobile {
  display: none; /* shown only on mobile via media query */
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 12px;
}

.cert-tab-arrow-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s ease;
  flex-shrink: 0;
}

.cert-tab-arrow-btn:hover:not(:disabled) {
  background: rgba(28, 182, 152, 0.12);
  border-color: rgba(28, 182, 152, 0.4);
  color: #1cb698;
}

.cert-tab-arrow-btn:disabled {
  opacity: 0.28;
  cursor: not-allowed;
}

.cert-mobile-tab-display {
  flex: 1;
  max-width: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: 50px;
  background: linear-gradient(135deg, rgba(28, 182, 152, 0.15) 0%, rgba(20, 160, 133, 0.08) 100%);
  border: 1px solid rgba(28, 182, 152, 0.4);
  color: #1cb698;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  min-height: 44px;
}

.cert-mobile-tab-display i { font-size: 0.82rem; }

.cert-mobile-tab-count {
  background: rgba(28, 182, 152, 0.22);
  border-radius: 20px;
  padding: 2px 8px;
  font-size: 0.72rem;
  font-weight: 700;
  margin-left: 2px;
}

/* Dot indicator */
.cert-tab-dots-row {
  display: none; /* shown only on mobile */
  justify-content: center;
  gap: 7px;
  margin-bottom: 32px;
}

.cert-tab-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
  cursor: pointer;
  transition: all 0.22s ease;
}

.cert-tab-dot.active {
  background: #1cb698;
  transform: scale(1.35);
}

.cert-tab-dot:hover:not(.active) {
  background: rgba(28, 182, 152, 0.5);
}

/* ── Pagination ──────────────────────────────────────────────────────────── */

.cert-paginacion {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
  flex-wrap: wrap;
}

.cert-page-btn {
  min-width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 14px;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
}

.cert-page-btn:hover:not(.disabled):not(.active) {
  background: rgba(28, 182, 152, 0.1);
  border-color: rgba(28, 182, 152, 0.35);
  color: #1cb698;
  transform: translateY(-1px);
}

.cert-page-btn.active {
  background: linear-gradient(135deg, rgba(28, 182, 152, 0.22) 0%, rgba(20, 160, 133, 0.12) 100%);
  border-color: rgba(28, 182, 152, 0.55);
  color: #1cb698;
  box-shadow: 0 4px 14px rgba(28, 182, 152, 0.18);
}

.cert-page-btn.disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.cert-page-btn.cert-page-prev,
.cert-page-btn.cert-page-next {
  width: 42px;
  padding: 0;
  border-radius: 50%;
}

.cert-page-dots {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  padding: 0 4px;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 1024px) {
  .cert-grid {
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  }
}

@media (max-width: 768px) {
  .certificados { padding: 80px 0; }

  .cert-header h2 { font-size: 2.2rem; }

  .cert-stats {
    gap: 24px;
    margin-bottom: 40px;
  }

  .cert-stat-num,
  .cert-stat-text { font-size: 1.8rem; }

  /* Switch to arrow navigation on mobile */
  #cert-tabs-desktop { display: none; }
  .cert-tabs-mobile  { display: flex; }
  .cert-tab-dots-row { display: flex; }

  .cert-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .cert-paginacion { margin-top: 32px; gap: 6px; }

  .cert-page-btn { min-width: 38px; height: 38px; font-size: 0.82rem; }

  /* Modal: single column on mobile */
  .modal-cert-body {
    grid-template-columns: 1fr;
  }

  .modal-cert-info-col {
    border-left: none;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    padding: 24px 28px 28px;
  }

  .modal-cert-visual-col {
    padding: 28px 28px 0;
  }

  .modal-cert-contenido {
    border-radius: 22px;
  }
}

@media (max-width: 480px) {
  .cert-contenido { padding: 0 16px; }

  /* Stats: 2 en fila superior + período centrado abajo */
  .cert-stats {
    flex-wrap: wrap;
    gap: 16px 0;
    row-gap: 0;
  }

  .cert-stat:nth-child(1),
  .cert-stat:nth-child(2) {
    flex: 1;
  }

  .cert-stat:nth-child(3) {
    flex: 0 0 100%;
    padding-top: 18px;
    margin-top: 6px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .cert-stat-text { font-size: 1.5rem; }

  .modal-cert { padding: 12px; }

  .modal-cert-visual-col,
  .modal-cert-info-col { padding: 20px; }

  .cert-stats { gap: 16px; }

  .cert-stat-num,
  .cert-stat-text { font-size: 1.5rem; }
}