@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Caveat&display=swap');

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: #a0a0a0;
  font-family: sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Site header wrapper ── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
}

/* ── Header ── */

header {
  background: linear-gradient(to bottom, #e07030 0%, #b84010 55%, #7a2800 100%);
  border-top: 3px solid #f5c200;
  transition: padding 0.25s ease;
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 16px;
  padding: 32px 40px 28px;
  box-shadow: 0 6px 40px rgba(0, 0, 0, 0.7);
}

h1 {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 4rem;
  color: #ffffff;
  letter-spacing: 4px;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.4);
  transition: font-size 0.25s ease;
}

.byline {
  font-family: 'Caveat', cursive;
  font-size: 1.6rem;
  color: #ffe4c0;
  transition: font-size 0.25s ease;
}

/* ── Nav ── */

nav {
  background-color: #eeeeee;
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 13px 40px;
  border-bottom: 2px solid #f5c200;
  max-height: 60px;
  overflow: hidden;
  transition: max-height 0.25s ease, opacity 0.2s ease;
}

nav a {
  text-decoration: none;
  color: #444;
  font-family: 'Caveat', cursive;
  font-size: 1.3rem;
  transition: color 0.15s;
}

nav a:hover {
  color: #f07830;
}

/* ── Comic area ── */

main {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 60px 40px;
  flex: 1;
}

.comic-frame {
  background: #f8f2e2;
  padding: 12px;
  box-shadow:
    0 2px 4px rgba(0, 0, 0, 0.4),
    0 8px 16px rgba(0, 0, 0, 0.4),
    0 20px 40px rgba(0, 0, 0, 0.35),
    0 40px 80px rgba(0, 0, 0, 0.2);
}

.comic-frame img {
  display: block;
  max-width: 640px;
  width: 100%;
}

/* ── Arrows ── */

.arrow {
  background-color: #2e2e2e;
  border: 2px solid #555;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 1.6rem;
  cursor: pointer;
  color: #bbb;
  flex-shrink: 0;
  transition: background-color 0.15s, border-color 0.15s, transform 0.1s;
}

.arrow:hover {
  background-color: #f07830;
  border-color: #f07830;
  color: white;
  transform: scale(1.08);
}

.arrow:active {
  transform: scale(0.95);
}

/* ── Footer ── */

footer {
  background-color: #8e8e8e;
  border-top: 2px solid #f5c200;
  padding: 20px 40px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

footer p {
  color: #333;
  font-size: 0.85rem;
}

footer a {
  color: #f07830;
  font-size: 0.85rem;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* ── Scrolled state ── */

.site-header.scrolled header {
  padding: 14px 40px;
}

.site-header.scrolled h1 {
  font-size: 2rem;
}

.site-header.scrolled .byline {
  font-size: 1rem;
}

.site-header.scrolled nav {
  max-height: 0;
  opacity: 0;
}

/* ── Mobile ── */

@media (max-width: 700px) {
  header {
    padding: 20px 24px;
    flex-wrap: wrap;
    gap: 6px;
  }

  h1 {
    font-size: 2.6rem;
  }

  .byline {
    font-size: 1.3rem;
  }

  nav {
    gap: 24px;
    padding: 10px 20px;
  }

  main {
    display: grid;
    grid-template-areas:
      "comic comic"
      "prev  next";
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    padding: 32px 16px;
  }

  .comic-frame {
    grid-area: comic;
  }

  .arrow-prev {
    grid-area: prev;
    justify-self: center;
  }

  .arrow-next {
    grid-area: next;
    justify-self: center;
  }

  footer {
    padding: 16px 24px;
  }
}