/* ==========================================================================
   Maniro — About Page / Certificates
   Grid of certificate cards: image, title, description, download action.
   ========================================================================== */

.certificates {
  padding-block: 96px;
  background: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
}

.certificates-head {
  max-width: 620px;
  margin: 0 auto 56px;
  text-align: center;
}

.certificates-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 16px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-sky-dark);
}

[data-theme="dark"] .certificates-eyebrow {
  color: var(--color-sky);
}

.certificates-eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-sky);
}

.certificates-title {
  margin: 0 0 16px;
  font-size: clamp(28px, 3.2vw, 38px);
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: normal;
  color: var(--color-text);
}

.certificates-subtitle {
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text-muted);
}

/* --- Grid --- */
.certificates-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---------- Card ---------- */
.certificate-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease),
    box-shadow 0.3s var(--ease);
}

.certificate-card:hover {
  transform: translateY(-5px);
  border-color: var(--color-sky);
  box-shadow: var(--shadow-md);
}

/* ---------- Image ---------- */
.certificate-image {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 4 / 3;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.certificate-image svg {
  width: 42%;
  height: 42%;
  color: var(--color-text);
  opacity: 0.85;
}

.certificate-image .certificate-seal {
  color: var(--color-sky-dark);
}

[data-theme="dark"] .certificate-image .certificate-seal {
  color: var(--color-sky);
}

.certificate-card:hover .certificate-image svg {
  opacity: 1;
}

/* ---------- Body ---------- */
.certificate-body {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
  padding: 24px 26px 26px;
}

.certificate-title {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-text);
}

.certificate-text {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.75;
  color: var(--color-text-muted);
  flex-grow: 1;
}

/* ---------- Download action ---------- */
.certificate-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding-inline: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: 13.5px;
  font-weight: 600;
  color: var(--color-text);
  background: transparent;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease),
    color 0.2s var(--ease), transform 0.2s var(--ease);
}

.certificate-download img {
  width: 17px;
  height: 17px;
  object-fit: contain;
  transition: transform 0.2s var(--ease);
}

/* Uploaded icon set ships as solid-black glyphs on transparent PNG —
   recolor via filter instead of currentColor */
[data-theme="dark"] .certificate-download img {
  filter: invert(1);
}

.certificate-download:hover {
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-bg);
  transform: translateY(-2px);
}

.certificate-download:hover img {
  filter: brightness(0) invert(1);
  transform: translateY(-1px);
}

[data-theme="dark"] .certificate-download:hover {
  background: var(--color-sky);
  border-color: var(--color-sky);
  color: var(--color-bg);
}

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .certificates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .certificates {
    padding-block: 64px;
  }

  .certificates-head {
    margin-bottom: 40px;
  }

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