/* ============================================================
   HOME.CSS — index.html specific styles
   ============================================================ */

/* ── HERO ── */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  align-items: center;
  padding: 0 5%;
  position: relative;
  overflow: hidden;
}

.hero__bg-ring {
  position: absolute;
  top: 50%;
  right: -5%;
  transform: translateY(-50%);
  width: clamp(400px, 50vw, 700px);
  height: clamp(400px, 50vw, 700px);
  border-radius: 50%;
  border: 1px solid var(--border);
  pointer-events: none;
}

.hero__bg-ring::before {
  content: '';
  position: absolute;
  inset: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
}

.hero__bg-ring::after {
  content: '';
  position: absolute;
  inset: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.05) 0%, transparent 70%);
}

.hero__inner {
  position: relative;
  z-index: 1;
  padding-top: calc(var(--nav-h) + 3rem);
}

.hero__counter {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--muted2);
  text-transform: uppercase;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeUp 0.6s 0.2s ease both;
}

.hero__counter span { color: var(--cyan); }

.hero__name {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(4rem, 11vw, 10rem);
  font-weight: 300;
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--white);
  opacity: 0;
  animation: fadeUp 1s 0.4s cubic-bezier(0.25,0.46,0.45,0.94) both;
}

.hero__name-first { display: block; }

.hero__name-last {
  display: block;
  font-style: italic;
  color: transparent;
  -webkit-text-stroke: 1px var(--cyan);
}

.hero__role-row {
  margin-top: 2rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s ease both;
}

.hero__role-line {
  width: 50px;
  height: 1px;
  background: var(--cyan);
  opacity: 0.5;
  flex-shrink: 0;
}

.hero__role-text {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.hero__desc {
  margin-top: 2.5rem;
  font-size: 1.1rem;
  color: var(--muted);
  max-width: 500px;
  line-height: 1.85;
  opacity: 0;
  animation: fadeUp 0.8s 0.8s ease both;
}

.hero__desc strong { color: var(--white); font-weight: 400; }

.hero__actions {
  margin-top: 3.5rem;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 1s ease both;
}

.hero__scroll {
  padding-bottom: 3rem;
  position: relative;
  z-index: 1;
  opacity: 0;
  animation: fadeUp 0.8s 1.4s ease both;
}

.hero__scroll-inner {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
}

.hero__scroll-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted2);
  transform: rotate(90deg);
  transform-origin: center;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

/* ── QUICK STATS BAR ── */
.stats-bar {
  position: relative;
  z-index: 1;
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 2.5rem 5%;
  overflow: hidden;
}

.stats-bar__grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
}

.stats-bar__item {
  padding: 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  border-right: 1px solid var(--border);
  position: relative;
  transition: background var(--transition);
}

.stats-bar__item:last-child { border-right: none; }
.stats-bar__item:hover { background: rgba(0,212,255,0.03); }

.stats-bar__num {
  font-family: 'Cormorant Garamond', serif;
  font-size: 2.8rem;
  font-weight: 600;
  color: var(--cyan);
  line-height: 1;
}

.stats-bar__label {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

/* ── FEATURED SECTIONS ── */
.home-section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 7rem 5%;
  position: relative;
  z-index: 1;
}

.home-section__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Research preview cards */
.research-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.rp-card {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.rp-card::after {
  content: '';
  position: absolute;
  left: 0; top: 0;
  width: 3px;
  height: 0;
  background: var(--cyan);
  transition: height 0.4s ease;
}

.rp-card:hover {
  border-color: var(--border2);
  background: rgba(0,212,255,0.03);
  transform: translateY(-4px);
  box-shadow: var(--glow);
}

.rp-card:hover::after { height: 100%; }

.rp-card__venue {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.8rem;
}

.rp-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.3rem;
  font-weight: 400;
  line-height: 1.4;
  color: var(--white);
  margin-bottom: 0.8rem;
}

.rp-card__desc {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.7;
}

/* Skills preview */
.skills-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-pill {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  padding: 0.45rem 1rem;
  border: 1px solid var(--border);
  border-radius: 50px;
  color: var(--muted);
  background: rgba(255,255,255,0.02);
  transition: all var(--transition);
}

.skill-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

.skill-pill--highlight {
  border-color: rgba(0,212,255,0.3);
  color: var(--cyan);
  background: var(--cyan-dim);
}

/* Blog preview */
.blog-preview {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.bp-card {
  padding: 1.8rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.02);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
}

.bp-card:hover {
  border-color: var(--border2);
  background: rgba(0,212,255,0.03);
  transform: translateY(-4px);
  box-shadow: var(--glow);
}

.bp-card__meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.bp-card__date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6rem;
  color: var(--muted2);
  letter-spacing: 0.1em;
}

.bp-card__cat {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  border: 1px solid rgba(0,212,255,0.3);
  padding: 0.15rem 0.5rem;
  border-radius: 2px;
}

.bp-card__title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.35;
  color: var(--white);
  margin-bottom: 0.6rem;
  flex: 1;
}

.bp-card__excerpt {
  font-size: 0.82rem;
  color: var(--muted);
  line-height: 1.7;
}

.bp-card__arrow {
  margin-top: 1.2rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.65rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition: gap var(--transition);
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50%       { opacity: 1;   transform: scaleY(1.15); }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .stats-bar__grid { grid-template-columns: repeat(2, 1fr); }
  .stats-bar__item:nth-child(2) { border-right: none; }
  .stats-bar__item { padding: 1.2rem; }
  .hero__bg-ring { display: none; }
}

@media (max-width: 480px) {
  .stats-bar__grid { grid-template-columns: 1fr 1fr; }
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { text-align: center; justify-content: center; }
}