CSS Building
Blocks

.hamburger {
  display: flex;
  flex-direction: column;   /* stack bars top→bottom */
  justify-content: space-between; /* even gaps */
  width: 32px;
  height: 22px;
  cursor: pointer;
}

.hamburger span {
  height: 2px;              /* each bar */
  background: #1a1a2e;
  transition: transform 0.3s, opacity 0.3s;
  transform-origin: center; /* rotate from middle */
}

/* The trick: hidden checkbox holds the state */
#toggle:checked + .hamburger span:nth-child(1) {
  transform: translateY(10px) rotate(45deg);
}
#toggle:checked + .hamburger span:nth-child(2) {
  opacity: 0;             /* vanish middle bar */
}
#toggle:checked + .hamburger span:nth-child(3) {
  transform: translateY(-10px) rotate(-45deg);
}

.card {
  background: white;
  border-radius: 8px;
  overflow: hidden;     /* clips img to rounded corners */
  box-shadow: 0 2px 8px rgba(0,0,0,.10),
               0 0 0 1px rgba(0,0,0,.06); /* 2-layer shadow */
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px); /* float upward */
  box-shadow: 0 8px 24px rgba(0,0,0,.15),
               0 0 0 1px rgba(0,0,0,.06);
}

.card-image {
  width: 100%;   /* fills card width */
  height: 100px;
}

.card-body {
  padding: 1rem; /* breathing room for text */
}

.btn {
  display: inline-flex;  /* shrink-wraps content */
  align-items: center;   /* centers icon + text */
  padding: 0.6rem 1.2rem;
  border: 2px solid transparent; /* holds space for outline */
  cursor: pointer;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--accent);
  color: white;
  border-color: var(--accent); /* matches background */
}

.btn-outline {
  background: transparent;
  border-color: currentColor; /* border = text color */
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--muted);       /* low emphasis */
}

.navbar {
  display: flex;              /* THE key property */
  align-items: center;      /* vertical center */
  justify-content: space-between; /* logo ←→ links */
  height: 52px;
  padding: 0 1rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;           /* space between items */
  list-style: none;      /* remove bullets */
}

.nav-links a {
  text-decoration: none;  /* remove underline */
  transition: color 0.15s;
}

/* Active state = where you are now */
.nav-links .active {
  color: var(--highlight);
}

.modal-overlay {
  position: fixed;   /* covers whole viewport */
  inset: 0;          /* top/right/bottom/left: 0 */
  background: rgba(0,0,0,0.5);
  display: flex;
  align-items: center;
  justify-content: center; /* centers the box */
  opacity: 0;          /* hidden by default */
  pointer-events: none; /* can't click when hidden */
  z-index: 100;       /* above all other content */
  transition: opacity 0.2s;
}

#toggle:checked ~ .modal-overlay {
  opacity: 1;
  pointer-events: all;  /* now interactive */
}

.modal-box {
  transform: translateY(16px) scale(0.97); /* start low */
  transition: transform 0.2s;
}
#toggle:checked ~ .overlay .modal-box {
  transform: none;  /* snaps into place */
}