/* ---------------- Project Grid ---------------- */
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 30px; /* spacing on desktop */
  max-width: 1000px;
  margin: 60px auto;
  width: 100%;
  box-sizing: border-box;
  padding: 0 10px;
  background-color: var(--bg-color);
  transition: background-color 0.3s;
}

/* Project card styling */
.project-item {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background-color: rgba(var(--secondary-rgb), var(--item-bg-alpha, 0.07));
  border-radius: 12px;
  padding: 16px;
  text-decoration: none;
  color: var(--text-color);
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1),
              box-shadow 0.3s ease,
              background-color 0.3s ease,
              color 0.3s;
  will-change: transform;
  transform: translateZ(0);
  backface-visibility: hidden;
}

/* Hover lift effect for fade-up items */
.project-item.fade-up:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px var(--hover-shadow-color);
  background-color: rgba(var(--secondary-rgb), 0.12);
}

/* Image styling */
.project-image {
  width: 100%;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 10px;
  display: block;
}

/* Text */
.project-title {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 8px 0 2px;
  color: var(--text-color);
}

.project-subtitle {
  font-size: 1rem;
  line-height: 1.3;
  color: var(--text-color);
  opacity: 0.8;
  margin: 0;
}

/* Fade-up animation */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-up.show {
  opacity: 1;
  transform: translateY(0);
}

/* ---------------- Responsive Grid ---------------- */
@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 25px;
    padding: 0 8px;
  }
}

@media (max-width: 600px) {
  .project-grid {
    grid-template-columns: repeat(1, minmax(0, 1fr));
    gap: 20px;
    padding: 0 20px; /* Increased side padding for more margin */
    max-width: 400px; /* Constrain overall width */
    margin: 11px auto 40px auto; /* Reduced top margin, kept bottom margin */
  }

  .project-image {
    object-fit: contain;
    width: 100%;
    height: 100%;
  }

  .project-item.fade-up:hover {
    transform: translateY(-12px);
    box-shadow: 0 16px 35px var(--hover-shadow-color);
  }
}

/* ---------------- Dark Mode Variables ---------------- */
:root {
  --item-bg-alpha: 0.07; /* default for light mode */
}

html.dark {
  --item-bg-alpha: 0.12; /* slightly darker for dark mode */
}