/* ═══════════════════════════════════════════════════════════
   TIANX STUDIO — Home Page
   ═══════════════════════════════════════════════════════════ */

/* ─── HERO ─────────────────────────────────────────────── */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--surface-dark);
  color: var(--text-inverse);
  position: relative;
  overflow: hidden;
  padding: var(--space-3xl) 0 var(--space-xl);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.3;
  animation: float 8s ease-in-out infinite;
}

.hero__orb--1 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--signal) 0%, transparent 70%);
  top: -10%;
  right: -5%;
  animation-delay: 0s;
}

.hero__orb--2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  bottom: -15%;
  left: -5%;
  animation-delay: -4s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(-20px, -15px); }
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero__label {
  margin-bottom: var(--space-sm);
  display: block;
}

.hero__title {
  color: #fff;
  margin-bottom: var(--space-md);
}

.hero__title em {
  color: var(--accent-light);
  font-style: italic;
}

.hero__desc {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.75;
  max-width: 50ch;
  margin-bottom: var(--space-md);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ─── METRICS ──────────────────────────────────────────── */

.metrics-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.metrics-row .metric-card {
  border-right: 1px solid var(--border);
}

.metrics-row .metric-card:last-child {
  border-right: none;
}

/* ─── FEATURED PROJECTS ────────────────────────────────── */

.featured-projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

/* ─── SERVICES OVERVIEW ────────────────────────────────── */

.services-overview {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.service-overview-card {
  padding: var(--space-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-card);
  transition: all var(--duration-md) var(--ease);
}

.service-overview-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.service-overview-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--accent-pale);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: var(--space-sm);
  font-size: 1.2rem;
}

.service-overview-card__title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  margin-bottom: var(--space-xs);
}

.service-overview-card__desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: var(--space-sm);
}

/* ─── TIANXVISION SPOTLIGHT ─────────────────────────────── */

.spotlight {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.spotlight__content {
  max-width: 480px;
}

.spotlight__features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin: var(--space-md) 0;
}

.spotlight__feature {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
}

.spotlight__feature-icon {
  color: var(--signal-light);
  flex-shrink: 0;
  margin-top: 2px;
}

.spotlight__mockup {
  width: 100%;
  aspect-ratio: 16/10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  background: var(--primary-90);
}

.spotlight__mockup img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── RESPONSIVE ───────────────────────────────────────── */

@media (max-width: 1024px) {
  .services-overview { grid-template-columns: repeat(2, 1fr); }
  .featured-projects { grid-template-columns: repeat(2, 1fr); }
  .spotlight { grid-template-columns: 1fr; gap: var(--space-lg); }
}

@media (max-width: 768px) {
  .hero { min-height: auto; padding: 8rem 0 var(--space-lg); }
  .hero__desc { font-size: 1rem; }
  .featured-projects { grid-template-columns: 1fr; }
  .services-overview { grid-template-columns: 1fr; }
  .metrics-row { grid-template-columns: repeat(2, 1fr); }
  .metrics-row .metric-card { border-right: none; }
  .metrics-row .metric-card:nth-child(odd) { border-right: 1px solid var(--border); }
}