/* =========================================================
   Research Innovation Page
   /nghien-cuu/khoa-hoc-cong-nghe-doi-moi-sang-tao/
========================================================= */

.research-innovation-page {
  background: var(--bg-soft, #f8fafc);
}

.research-innovation-page svg {
  display: block;
  width: 1em;
  height: 1em;
}

/* Layout giống ho-tro-sinh-vien */

.research-innovation-section {
  padding: 24px 0 64px;
  background: var(--bg-soft, #f8fafc);
}

.research-innovation-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.research-innovation-cat-card {
  display: flex;
  flex-direction: column;
  min-height: 390px;
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: 16px;
  overflow: hidden;
  transition:
    transform 0.18s ease,
    box-shadow 0.18s ease,
    border-color 0.18s ease;
}

.research-innovation-cat-card:hover {
  transform: translateY(-14px);
  border-color: var(--iu-blue-300, #93c5fd);
  box-shadow: 0 16px 32px -18px rgba(20, 50, 110, 0.4);
}

.research-innovation-cat-card-head {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 88px;
  padding: 18px 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--iu-blue-900), var(--iu-blue-700));
}

.research-innovation-cat-card-head::after {
  content: "";
  position: absolute;
  inset: auto 0 -1px 0;
  height: 3px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.32), transparent);
}

.research-innovation-cat-card-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.research-innovation-cat-card-icon svg {
  width: 22px;
  height: 22px;
}

.research-innovation-cat-card-head h3 {
  flex: 1;
  min-width: 0;
  margin: 0;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: -0.005em;
  line-height: 1.3;
}

.research-innovation-cat-card-head h3 a {
  color: #fff;
  text-decoration: none;
  transition: opacity 0.18s ease;
}

.research-innovation-cat-card-head h3 a:hover {
  opacity: 0.85;
}

.research-innovation-cat-card-count {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  color: #fff;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.research-innovation-cat-card-desc {
  margin: 16px 20px 8px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.55;
}

.research-innovation-cat-card-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 8px 20px 16px;
}

.research-innovation-cat-card-list li a {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 9px 10px;
  color: var(--text-main);
  border-radius: 10px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition:
    background 0.18s ease,
    transform 0.18s ease,
    color 0.18s ease;
}

.research-innovation-cat-card-list li a:hover {
  color: var(--iu-blue-900);
  background: var(--iu-blue-50, rgba(11, 94, 215, 0.06));
  transform: translateX(3px);
}

.research-innovation-cat-card-bullet {
  flex-shrink: 0;
  width: 6px;
  color: var(--iu-blue-700);
  font-size: 0.6rem;
  line-height: 1;
}

.research-innovation-cat-card-title {
  flex: 1;
  min-width: 0;
  display: block;
  line-height: 1.45;
  word-break: break-word;
}

.research-innovation-cat-card-date {
  flex-shrink: 0;
  align-self: flex-start;
  margin-top: 2px;
  color: var(--text-muted);
  font-size: 0.74rem;
  font-weight: 600;
  font-feature-settings: "tnum";
}

.research-innovation-cat-card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin: auto 20px 20px;
  padding: 10px 14px;
  color: var(--iu-blue-900);
  background: var(--iu-blue-50, rgba(11, 94, 215, 0.06));
  border-radius: 10px;
  font-size: 0.84rem;
  font-weight: 700;
  text-decoration: none;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    transform 0.18s ease;
}

.research-innovation-cat-card-more:hover {
  color: #fff;
  background: var(--iu-blue-700);
  transform: translateX(3px);
}

.research-innovation-cat-card-empty {
  padding: 16px 20px 24px;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-style: italic;
}

.research-innovation-cat-card-empty p {
  margin: 0;
}

/* Hero riêng */

.research-innovation-page .iu-page-hero__copy {
  max-width: 820px;
}

.research-innovation-page .iu-page-hero__description {
  max-width: 760px;
}

/* Responsive */

@media (max-width: 1024px) {
  .research-innovation-cat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .research-innovation-section {
    padding: 20px 0 54px;
  }

  .research-innovation-cat-grid {
    grid-template-columns: 1fr;
  }

  .research-innovation-cat-card {
    min-height: unset;
  }

  .research-innovation-cat-card-head {
    flex-wrap: wrap;
  }

  .research-innovation-cat-card-count {
    margin-left: 54px;
  }

  .research-innovation-cat-card-date {
    display: none;
  }
}