/* ============================================================
   AXYZ Design & CNC — research.css
   Extends style.css — link BOTH stylesheets on research pages
   ============================================================ */

/* === HERO === */
#research-hero {
  min-height: 55vh;
  background: var(--grad-bg);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 110px 72px 80px;
}

.research-hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(62,207,191,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62,207,191,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.research-hero-bg-text {
  position: absolute;
  bottom: -20px; left: 60px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(8rem, 18vw, 22rem);
  line-height: 1;
  color: rgba(255,255,255,0.025);
  pointer-events: none;
  user-select: none;
  letter-spacing: 0.02em;
}

.research-hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.research-hero-content .label { margin-bottom: 20px; }

.research-hero-heading {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 7vw, 8rem);
  line-height: 0.92;
  letter-spacing: 0.03em;
  margin-bottom: 32px;
}

.research-hero-statement {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--off-white);
  opacity: 0.82;
  max-width: 640px;
  border-left: 2px solid var(--accent);
  padding-left: 24px;
}

/* === COUNT BAR === */
.research-count-bar {
  background: rgba(0,0,0,0.3);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.research-count-bar span {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}

.research-count-bar strong { color: var(--accent); font-weight: 500; }

/* === RESEARCH SECTION === */
.research-section {
  padding: 80px 72px;
  border-bottom: 1px solid var(--border);
}

.research-section:nth-of-type(odd)  { background: var(--navy); }
.research-section:nth-of-type(even) { background: var(--navy-mid); }

.research-section-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 48px;
}

.research-section-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2rem, 3.5vw, 3.5rem);
  line-height: 1;
  letter-spacing: 0.03em;
}

.research-section-count {
  font-size: 0.65rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
}

/* === RESEARCH ITEMS === */
.research-items {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
}

.research-item {
  background: rgba(11,22,36,0.9);
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: 64px;
  padding: 52px 56px;
  position: relative;
  overflow: hidden;
  transition: background 0.3s;
}

.research-item:hover { background: rgba(13,26,42,0.98); }

/* Faint number in background */
.research-item-num {
  position: absolute;
  top: 16px; right: 28px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: 8rem;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  pointer-events: none;
  user-select: none;
}

/* Left accent bar slides in on hover */
.research-item::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.5s cubic-bezier(.23,1,.32,1);
}
.research-item:hover::before { transform: scaleY(1); }

/* Left column */
.research-item-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}

.research-item-category {
  font-size: 0.62rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(62,207,191,0.3);
  padding: 4px 10px;
}

.research-item-year {
  font-size: 0.62rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}

.research-item-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(1.8rem, 2.8vw, 3rem);
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--white);
  margin-bottom: 8px;
}

.research-item-institution {
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 24px;
}

.research-item-abstract {
  font-size: 0.94rem;
  line-height: 1.85;
  color: var(--off-white);
  opacity: 0.8;
  margin-bottom: 28px;
  max-width: 560px;
}

.research-item-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.research-keyword {
  font-size: 0.65rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--off-white);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 4px 10px;
  transition: border-color 0.2s, color 0.2s;
}
.research-item:hover .research-keyword { border-color: rgba(62,207,191,0.3); }

/* Right column */
.research-item-right {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding-top: 48px;
}

.research-item-specs {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border);
  margin-bottom: 32px;
}

.research-spec {
  background: rgba(255,255,255,0.02);
  padding: 12px 16px;
}

.research-spec-key {
  font-size: 0.6rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 3px;
}

.research-spec-val {
  font-size: 0.84rem;
  color: var(--white);
  line-height: 1.4;
}

.research-item-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  transition: gap 0.2s;
}
.research-item-cta:hover { gap: 16px; }
.research-item-cta .arrow { font-size: 1rem; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  #research-hero { padding: 60px 32px 64px; }
  .research-count-bar { padding: 14px 32px; }
  .research-section { padding: 64px 32px; }
  .research-item { grid-template-columns: 1fr; gap: 40px; padding: 40px 32px; }
  .research-item-right { padding-top: 0; }
}

@media (max-width: 640px) {
  #research-hero { padding: 40px 20px 40px; min-height: 40vh; }
  .research-hero-bg-text { display: none; }
  .research-count-bar { padding: 12px 20px; }
  .research-section { padding: 48px 20px; }
  .research-item { padding: 32px 20px; gap: 32px; }
}