/* -------- RESET & BASE -------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'IBM Plex Mono', monospace;
  background: #fdfdfd;
  color: #111;
  line-height: 1.6;
  text-align: center;
  padding: 1rem 0;
  overflow-x: hidden;
}

/* -------- HEADER -------- */
header {
  margin-bottom: 4rem;
}

.subtitle {
  color: #666;
  font-size: 0.9rem;
}

/* -------- SECTION 1: COLOR GRID -------- */
.grid-demo {
  margin: 0;
  padding: 0;
}

h2 {
  text-transform: uppercase;
  margin-bottom: 0.25rem;
  letter-spacing: 0.05em;
}

.note {
  color: #777;
  font-size: 0.85rem;
  margin-bottom: 1.5rem;
}

/* Full-width grid layout */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 0;
  width: 100vw;
  margin-left: calc(-1 * (100vw - 100%)/2);
}

/* Individual color blocks */
.block {
  position: relative;
  height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  letter-spacing: 0.05em;
  color: transparent;
  transition: all 0.4s ease;
}

/* Hover: reveal text & slight zoom */
.block:hover {
  color: #111;
  transform: scale(1.03);
}

/* Color palette */
.yellow { background: #FEFB00; }
.violet { background: #7C44D1; color: #FFF }
.blue   { background: #438AC8; }
.red    { background: #E9322F; color: #000; }
.beige  { background: #F3E7B9; }
.green  { background: #00A347; }
.orange { background: #FF7E0C; }
.pink   { background: #EA7F94; color: #111; }

/* -------- SECTION 2: RESPONSIVE IMAGE -------- */
.image-demo {
  margin: 4rem auto;
  max-width: 700px;
}

.image-demo img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 0.5rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  transition: opacity 0.3s ease;
}

.image-demo img:hover {
  opacity: 0.9;
}

.image-demo figcaption {
  font-size: 0.8rem;
  color: #555;
}

.image-demo a {
  color: #4a8df5;
  text-decoration: none;
}

/* -------- SECTION 3: QUOTE -------- */
.saul {
  font-style: italic;
  margin: 3rem auto 4rem auto;
  color: #333;
}

/* -------- FOOTER -------- */
footer {
  font-size: 0.75rem;
  color: #777;
  margin-top: 3rem;
}

/* -------- MEDIA QUERIES -------- */
@media (max-width: 768px) {
  h1 { font-size: 1.8rem; }
  .block { height: 180px; }
}

@media (max-width: 480px) {
  .block { height: 140px; font-size: 0.9rem; }
  .saul { font-size: 0.9rem; margin: 2rem 1rem; }
}