/* ── PATENT SECTION ───────────────────────────────────────── */
#patent {
  background:
    radial-gradient(ellipse 800px 500px at 100% 50%, rgba(195,34,31,0.10), transparent 55%),
    var(--clr-dark-2);
  position: relative;
  overflow: hidden;
}
:root[data-theme="light"] #patent {
  background:
    radial-gradient(ellipse 800px 500px at 100% 50%, rgba(195,34,31,0.07), transparent 55%),
    var(--clr-dark-2);
}

.patent-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 4rem;
  align-items: center;
}

.patent-lead {
  font-size: 1.15rem;
  color: var(--clr-text);
  margin: 1.5rem 0 2.5rem;
  line-height: 1.6;
  opacity: 0.9;
}

.patent-features {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-bottom: 3rem;
}

.patent-feature {
  display: flex;
  gap: 1.25rem;
}

.patent-feature .p-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(195,34,31,0.1);
  border: 1px solid rgba(195,34,31,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-red);
  flex-shrink: 0;
}

.patent-feature h4 {
  font-size: 1rem;
  color: var(--clr-white);
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}

.patent-feature p {
  font-size: 0.9rem;
  color: var(--clr-text-muted);
  line-height: 1.6;
}

.patent-badge-wrap {
  display: inline-flex;
}

.patent-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1.25rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--clr-border);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-text);
}

.patent-badge svg {
  color: #27ae60;
}

/* Patent Visual Card */
.patent-visual {
  width: 100%;
  perspective: 1000px;
}

.patent-card {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1.1;
  background: #1a1a24;
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl);
  padding: 3rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.23, 1, 0.32, 1);
}

.patent-card:hover {
  transform: rotateY(-5deg) rotateX(5deg) translateY(-10px);
}

.patent-card-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 100% 0%, rgba(195,34,31,0.1) 0%, transparent 60%),
              radial-gradient(circle at 0% 100%, rgba(89,28,83,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.patent-card-content {
  position: relative;
  z-index: 1;
}

.p-stamp {
  position: absolute;
  top: -120px;
  right: -20px;
  font-family: var(--font-title);
  font-size: 10rem;
  color: rgba(255,255,255,0.03);
  line-height: 1;
  pointer-events: none;
}

.patent-card h3 {
  font-size: 2.2rem;
  color: #ffffff;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.p-line {
  width: 60px;
  height: 4px;
  background: var(--grad-brand);
  border-radius: 2px;
  margin-bottom: 1.5rem;
}

.patent-card p {
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  line-height: 1.6;
}

.patent-glow {
  position: absolute;
  bottom: -50px;
  right: -50px;
  width: 200px;
  height: 200px;
  background: var(--clr-red);
  filter: blur(80px);
  opacity: 0.15;
  pointer-events: none;
  transition: opacity 0.35s ease;
}

.patent-card:hover .patent-glow {
  opacity: 0.3;
}

@media (max-width: 1024px) {
  .patent-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
  .patent-visual {
    max-width: 420px;
    margin: 0 auto;
  }
}