:root {
  --red: #d85057;
  --blue: #5b9fd6;
  --green: #6e9d76;
  --sepia: #f0e0c7;
  --ink: #2d2d2d;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Special Elite', 'Courier New', monospace;
  background: var(--sepia);
  color: var(--ink);
  line-height: 1.6;
  position: relative;
  overflow-x: hidden;
}

/* ==================== HEADER ==================== */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: var(--sepia);
  border-bottom: 3px solid var(--ink);
  filter: contrast(105%) sepia(15%);
}

h1 {
  font-family: 'Bangers', cursive;
  font-size: 3rem;
  letter-spacing: 2px;
  margin: 0;
  color: var(--red);
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.15);
}

.login-btn {
  font-family: 'Special Elite', monospace;
  background: var(--blue);
  color: #fff;
  padding: 0.5rem 1.25rem;
  border: 2px solid var(--ink);
  text-decoration: none;
  border-radius: 6px;
  box-shadow: 2px 2px 0 rgba(0, 0, 0, 0.3);
  transition: transform 0.1s ease;
}

.login-btn:hover {
  transform: translateY(-2px);
}

/* ==================== MAIN ==================== */
main {
  padding: 2rem 1rem 4rem;
  max-width: 1200px;
  margin: 0 auto;
}

.intro {
  max-width: 650px;
  margin: 0 auto 3rem;
  text-align: center;
  font-size: 1.1rem;
  filter: contrast(110%) sepia(8%);
}

.potions {
  display: flex;
  flex-direction: column;
  gap: 4rem;
}

.potion-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2rem;
}

.potion-row.reverse {
  flex-direction: row-reverse;
}

.potion-row img {
  flex: 1 1 250px;
  max-width: 350px;
  border: 6px solid var(--ink);
  /* wonky rubber-hose silhouette */
  border-radius: 50% 50% 40% 60% / 60% 40% 50% 50%;
  filter: grayscale(10%) sepia(15%) contrast(110%);
  box-shadow: 6px 6px 0 rgba(0, 0, 0, 0.25);
}

.info {
  flex: 1 1 300px;
  min-width: 250px;
}

.info h2 {
  font-family: 'Bangers', cursive;
  font-size: 2rem;
  margin: 0 0 0.25rem;
  color: var(--blue);
}

.tagline {
  font-style: italic;
  margin-bottom: 0.75rem;
}

.info ul {
  list-style: square inside;
  padding-left: 0;
  margin: 0;
}

/* ==================== FOOTER ==================== */
footer {
  text-align: center;
  padding: 1.5rem 1rem;
  border-top: 3px solid var(--ink);
  background: var(--sepia);
  font-size: 0.9rem;
}

/* ==================== FILM GRAIN ==================== */
.film-grain {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  opacity: 0.12;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 20 20'%3E%3Ccircle fill='%23000000' fill-opacity='0.35' cx='1' cy='1' r='1'/%3E%3C/svg%3E");
  background-size: 160px;
  mix-blend-mode: overlay;
  animation: grain 7s steps(10) infinite;
}

@keyframes grain {
  0%   { transform: translate(0) }
  10%  { transform: translate(-5%, -10%) }
  20%  { transform: translate(-15%, 5%) }
  30%  { transform: translate(7%, -25%) }
  40%  { transform: translate(-5%, 25%) }
  50%  { transform: translate(-15%, 10%) }
  60%  { transform: translate(15%, 0%) }
  70%  { transform: translate(0%, 15%) }
  80%  { transform: translate(3%, 35%) }
  90%  { transform: translate(-10%, 10%) }
  100% { transform: translate(0) }
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  h1 {
    font-size: 2.25rem;
  }
  .potion-row img {
    margin: 0 auto;
  }
}