*,
*::before,
*::after {
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  font-size: 16px;
}

body {
  font-size: 1rem;
  line-height: 1.5;
  font-family: "Poppins", "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--text-color);
  background: linear-gradient(
    180deg,
    var(--bodycol1) 20%,
    var(--bodycol2) 40%,
    var(--bodycol3) 60%,
    var(--bodycol4) 80%
  );
}

/* background:
    radial-gradient(
      900px 500px at 20% 10%,
      color-mix(in oklch, var(--hero-accent) 18%, transparent),
      transparent
    ),
    radial-gradient(
      800px 500px at 80% 0%,
      color-mix(in oklch, var(--party) 10%, transparent),
      transparent
    ),
    var(--bg);
  background-attachment: fixed;
  color: var(--text);
  line-height: 1.5;
} */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  container-type: inline-size;
  container-name: container;
}

nav {
  position: sticky;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(2, auto);
  place-items: center;
  top: 0px;
  padding: 0 1rem 0.5rem 1rem;
  border-radius: 8px;
  background: var(--glass-bg);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(10px);
  z-index: 10;
  margin: 0 1rem 0 1rem;
  gap: 4px;
}

nav a {
  text-decoration: none;
  font-weight: 600;
}

nav > button:nth-child(1) {
  grid-column: 1;
  grid-row: 1;
}

nav > h1.title {
  grid-column: 2 / 4;
  grid-row: 1;
  text-align: center;
  white-space: nowrap;
  margin-bottom: 0rem;
  text-align: center;
  font-size: clamp(1.7rem, 5vw, 3rem);
  font-weight: bold;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.65),
    0 6px 18px rgba(0, 0, 0, 0.35);
}

nav > button:nth-child(3) {
  grid-column: 4;
  grid-row: 1;
}

nav > button:nth-child(4) {
  grid-column: 1;
  grid-row: 2;
}

nav > h2.subtitle {
  grid-column: 2 / 4;
  grid-row: 2;
  text-align: center;
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: bold;
  margin-bottom: 0rem;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.65),
    0 6px 18px rgba(0, 0, 0, 0.35);
}

nav > button:nth-child(6) {
  grid-column: 4;
  grid-row: 2;
}

.btn {
  padding: 0.2rem;
  font-weight: 600;
  background-color: var(--button-color);
  color: var(--button-text);
  border: none;
  border-radius: 5px;
  cursor: pointer;
  transition:
    background-color 0.3s,
    color 0.3s;
  box-shadow: var(--button-shadow);
  width: 105px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.btn:hover {
  background-color: var(--button-hover-color);
  color: var(--button-hover-text);
  box-shadow: var(--button-shadow-hover);
  font-size: 0;
}

.btn:active {
  box-shadow: var(--button-shadow-active);
  transform: translateY(0.1rem);
}

.btn:hover::before {
  content: attr(data-hover);
  font-size: 0.9rem;
  /* background-color: var(--accent-color); */
  color: #fff;
}

/* Mobile layout: 2x4 grid (≤ 500px) */
@media (max-width: 500px) {
  nav {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto auto auto;
    top: 0;
    padding: 0 1rem 0.5rem 1rem;
  }

  nav > button:nth-child(1) {
    grid-column: 1;
    grid-row: 3;
  }

  nav > h1.title {
    grid-column: 1 / 3;
    grid-row: 1;
  }

  nav > button:nth-child(3) {
    grid-column: 2;
    grid-row: 3;
  }

  nav > button:nth-child(4) {
    grid-column: 1;
    grid-row: 4;
  }

  nav > h2.subtitle {
    grid-column: 1 / 3;
    grid-row: 2;
    margin-bottom: 0.4rem;
  }

  nav > button:nth-child(6) {
    grid-column: 2;
    grid-row: 4;
  }
}

nav {
  transition: transform 220ms ease;
  transform: translateY(0);
  will-change: transform;
}

nav.is-collapsed {
  transform: translateY(calc(-100% + 10px));
}

.newspaper {
  --colrule: var(--lightblue);
  --colwidth: 350px;

  column-count: auto;
  column-width: var(--colwidth);
  column-fill: balance;
  column-gap: 0.7rem;
  padding: 1rem;
}

figure {
  -webkit-column-break-inside: avoid;
  break-inside: avoid;
  page-break-inside: avoid;
}

.newspaper img {
  display: block;
  /* -webkit-column-break-inside: avoid;
  break-inside: avoid;
  page-break-inside: avoid; */
  width: 100%;
  height: auto;
  margin: 0;
  border-radius: 6px;
}

.newspaper figcaption {
  text-align: center;
  margin-top: 0.5rem;
  font-size: 1rem;
  color: var(--black);
}

.newspaper.extra {
  column-gap: 1.5rem;
}

.newspaper.extra .prow {
  display: block;
  width: auto;
}

figure.photo-item {
  margin: 0.7rem 0;
  background: white;
  border-radius: 8px;
}

figure.photo-item:first-of-type {
  margin-top: 0;
}

@media (min-width: 1100px) {
  .newspaper.extra {
    -webkit-columns: 3 320px;
    columns: 3 320px;
    column-count: 3;
    column-width: 320px;
    column-fill: balance;
  }
}

.prow {
  display: inline-block;
  width: 100%;
  -webkit-column-break-inside: avoid;
  break-inside: avoid;
  break-inside: avoid-column;
  page-break-inside: avoid;
}

.prow h4 {
  -webkit-column-break-after: avoid;
  break-after: avoid;
  page-break-after: avoid;
}

.prow h4 + img {
  -webkit-column-break-before: avoid;
  break-before: avoid;
  page-break-before: avoid;
}

.center {
  text-align: center;
}

.prow::after {
  font-size: 3rem;
  font-weight: 900;
  content: "---- ----";
  display: block;
  text-align: center;
  color: var(--colrule);
  margin: 1rem 0;
}

img.imgl,
img.imgr {
  width: 100%;
  height: auto;
  margin: 1rem 0;
}

img {
  scale: 0.9;
  opacity: 0.5;
  -webkit-animation: fade-in linear forwards;
  animation: fade-in linear forwards;
  animation-timeline: view();
  animation-range: 100px 300px;
}

@keyframes fade-in {
  to {
    scale: 1;
    opacity: 1;
  }
}

@-webkit-keyframes fade-in {
  to {
    scale: 1;
    opacity: 1;
  }
}