/* ============================================================
   INNOVATION & RESEARCH PAGE — innovation.css
   ============================================================ */

/* --- HERO -------------------------------------------------- */
.innovation-hero {
  padding: 160px 2rem 90px;
  position: relative;
  overflow: hidden;
}
.innovation-hero::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at top right, rgba(45,125,210,0.07) 0%, transparent 65%);
  pointer-events: none;
}
.innovation-hero h1 { margin-bottom: 1.25rem; }
.innovation-hero p {
  font-size: 1.1rem;
  max-width: 620px;
  color: var(--text-secondary);
  line-height: 1.75;
}

/* --- INTRO ------------------------------------------------- */
.inno-intro {
  padding: var(--section-pad) 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg-primary);
}
.inno-intro-inner {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 5rem;
  align-items: start;
}
.inno-intro-text h2 {
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}
.inno-intro-text p {
  color: var(--text-secondary);
  font-size: 0.97rem;
  margin-bottom: 1rem;
  line-height: 1.85;
}
.inno-stat-stack {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  position: sticky;
  top: 100px;
}
.inno-stat {
  background: var(--bg-secondary);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  transition: background var(--transition);
}
.inno-stat:hover { background: var(--bg-card); }
.inno-stat-num {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 400;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.02em;
}
.inno-stat-label {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* --- PATENTS ----------------------------------------------- */
.patents-section {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.patent-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  margin-top: 3rem;
}
.patent-card {
  background: var(--bg-card);
  padding: 2.75rem 2.5rem;
  transition: background var(--transition);
}
.patent-card:hover { background: var(--bg-primary); }
.patent-card-header {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}
.patent-tag {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-dim);
  padding: 0.3rem 0.7rem;
  border-radius: 2px;
}
.patent-tag-secondary {
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
}
.patent-card h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  line-height: 1.2;
}
.patent-subtitle {
  font-size: 0.75rem !important;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted) !important;
  margin-bottom: 1.5rem !important;
}
.patent-card p {
  color: var(--text-secondary);
  font-size: 0.93rem;
  line-height: 1.8;
  margin-bottom: 1rem;
}
.patent-meta {
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.patent-meta-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}
.patent-meta-label {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
  flex-shrink: 0;
}
.patent-meta-value {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: right;
}

/* --- ACADEMIC SECTION -------------------------------------- */
.academic-section {
  padding: var(--section-pad) 0;
  background: var(--bg-primary);
  border-bottom: 1px solid var(--border);
}
.academic-section h2 {
  color: var(--text-primary);
  margin-bottom: 1.25rem;
}
.academic-section p {
  color: var(--text-secondary);
  font-size: 0.97rem;
  line-height: 1.85;
  margin-bottom: 1rem;
}

/* --- RESEARCH LIST ----------------------------------------- */
.research-section {
  padding: var(--section-pad) 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
}
.research-list {
  margin-top: 3rem;
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
}
.research-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2.5rem;
  padding: 2.25rem 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  transition: background var(--transition);
}
.research-item:hover {
  background: rgba(255,255,255,0.02);
  padding-left: 1rem;
  padding-right: 1rem;
  margin-left: -1rem;
  margin-right: -1rem;
}
.research-year {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 500;
  color: var(--accent);
  padding-top: 0.2rem;
  opacity: 0.8;
}
.research-content h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 0.3rem;
  line-height: 1.3;
}
.research-journal {
  font-size: 0.72rem !important;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted) !important;
  margin-bottom: 0.75rem !important;
}
.research-citation {
  font-size: 0.72rem !important;
  color: var(--accent) !important;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem !important;
  margin-top: -0.4rem !important;
}
.research-content p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.75;
  margin-bottom: 0;
}

/* --- NAV ACTIVE -------------------------------------------- */
.nav-active { color: #fff !important; }

/* --- RESPONSIVE -------------------------------------------- */
@media (max-width: 900px) {
  .inno-intro-inner {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .inno-stat-stack {
    position: static;
    grid-template-columns: repeat(2, 1fr);
    display: grid;
  }
  .patent-cards {
    grid-template-columns: 1fr;
  }
  .research-item {
    grid-template-columns: 60px 1fr;
    gap: 1.5rem;
  }
}

@media (max-width: 600px) {
  .innovation-hero { padding: 130px 1.5rem 60px; }
  .patent-card { padding: 2rem 1.5rem; }
  .research-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
  .research-year {
    font-size: 0.75rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    padding-top: 0;
  }
  .patent-meta-item { flex-direction: column; gap: 0.2rem; }
  .patent-meta-value { text-align: left; }
}