:root {
  --pink: #ff5fb7;
  --mint: #39d8c8;
  --yellow: #ffe15c;
  --blue: #72b8ff;
  --ink: #2b2630;
  --muted: #756f7a;
  --line: #ece5ee;
  --paper: #fffdf8;
  --white: #ffffff;
  --shadow: 0 14px 32px rgba(43, 38, 48, 0.09);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 9% 8%, rgba(255, 95, 183, 0.16), transparent 18rem),
    radial-gradient(circle at 92% 10%, rgba(57, 216, 200, 0.14), transparent 18rem),
    linear-gradient(180deg, #fffdf8 0%, #ffffff 42%, #fff8fc 100%);
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic", "YuGothic", "Noto Sans JP", sans-serif;
  line-height: 1.7;
}

a {
  color: inherit;
}

.site-header {
  border-bottom: 4px solid var(--ink);
  background: rgba(255, 253, 248, 0.94);
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(12px);
}

.header-inner,
.hero,
.main-layout,
.footer-inner,
.page-hero {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.header-inner {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 900;
  font-size: 1.3rem;
}

.brand-mark {
  width: 42px;
  height: 42px;
  border: 3px solid var(--ink);
  border-radius: 50%;
  background:
    radial-gradient(circle at 32% 30%, #fff 0 12%, transparent 13%),
    conic-gradient(from 20deg, var(--pink), var(--yellow), var(--mint), var(--blue), var(--pink));
  position: relative;
}

.brand-mark::before,
.brand-mark::after {
  content: "";
  position: absolute;
  top: 14px;
  width: 12px;
  height: 12px;
  background: var(--white);
  border: 3px solid var(--ink);
}

.brand-mark::before {
  left: -12px;
  border-radius: 9px 3px 3px 9px;
}

.brand-mark::after {
  right: -12px;
  border-radius: 3px 9px 9px 3px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.site-nav a,
.chip-row button,
.article-link {
  min-height: 38px;
  border: 2px solid var(--ink);
  border-radius: 999px;
  background: var(--white);
  color: var(--ink);
  padding: 7px 13px;
  font-weight: 800;
  font-size: 0.88rem;
  text-decoration: none;
  box-shadow: 3px 3px 0 var(--ink);
}

.hero {
  padding: 42px 0 20px;
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 8px;
  font-weight: 900;
  color: var(--pink);
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: clamp(2.25rem, 7vw, 5.2rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.hero p,
.page-hero p {
  color: var(--muted);
  font-size: 1.02rem;
}

.hero-art {
  min-height: 260px;
  position: relative;
}

.hero-art::before,
.hero-art::after,
.hero-art span {
  content: "";
  position: absolute;
  border: 4px solid var(--ink);
  box-shadow: var(--shadow);
}

.hero-art::before {
  inset: 18px 28px auto auto;
  width: 184px;
  height: 132px;
  border-radius: 48% 52% 45% 55%;
  background:
    radial-gradient(circle at 35% 36%, #fff 0 12%, transparent 13%),
    radial-gradient(circle at 62% 34%, #fff 0 10%, transparent 11%),
    linear-gradient(135deg, #ff9ed0, #9eefff);
  transform: rotate(5deg);
}

.hero-art::after {
  left: 10px;
  bottom: 12px;
  width: 190px;
  height: 142px;
  background:
    radial-gradient(circle at 38% 8%, var(--pink) 0 24px, transparent 25px),
    radial-gradient(circle at 58% 6%, var(--mint) 0 24px, transparent 25px),
    radial-gradient(circle at 48% 28%, var(--yellow) 0 34px, transparent 35px),
    linear-gradient(180deg, transparent 0 42px, var(--white) 43px 100%);
  border-radius: 12px 12px 58px 58px;
  transform: rotate(-3deg);
}

.hero-art span {
  right: 42px;
  bottom: 26px;
  width: 78px;
  height: 78px;
  border-radius: 50%;
  background:
    repeating-conic-gradient(from 10deg, var(--pink) 0 18deg, var(--white) 18deg 36deg, var(--mint) 36deg 54deg, var(--white) 54deg 72deg);
}

.hero-art span::before,
.hero-art span::after {
  content: "";
  position: absolute;
  top: 28px;
  width: 34px;
  height: 22px;
  background: var(--white);
  border: 3px solid var(--ink);
}

.hero-art span::before {
  left: -32px;
  border-radius: 22px 6px 6px 22px;
}

.hero-art span::after {
  right: -32px;
  border-radius: 6px 22px 22px 6px;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.stats span {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 8px 12px;
  font-weight: 800;
}

.main-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 28px;
  align-items: start;
  padding: 20px 0 56px;
}

.content,
.sidebar,
.page-hero,
.static-page {
  min-width: 0;
}

.section-title {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 14px;
}

.section-title h2 {
  margin: 0;
  font-size: 1.45rem;
}

.section-title p {
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.filter-panel,
.side-panel,
.static-page {
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.86);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 18px;
}

.filter-panel h2,
.side-panel h2 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 14px;
}

.chip-row button {
  cursor: pointer;
}

.chip-row button[aria-pressed="true"] {
  background: var(--yellow);
}

.article-list {
  display: grid;
  gap: 16px;
}

.article-card,
.link-card,
.index-tile {
  display: block;
  border: 3px solid var(--ink);
  border-radius: 8px;
  background: var(--white);
  padding: 18px;
  box-shadow: 5px 5px 0 rgba(43, 38, 48, 0.18);
  text-decoration: none;
}

.article-card h2 {
  margin: 8px 0 12px;
  font-size: 1.15rem;
  line-height: 1.45;
}

.article-meta,
.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.article-meta span,
.article-meta time,
.tag-row span {
  border-radius: 999px;
  background: #fff3fa;
  padding: 4px 9px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 800;
}

.tag-row span:nth-child(2) {
  background: #e9fffc;
}

.tag-row span:nth-child(3) {
  background: #fff8cc;
}

.article-link {
  display: inline-flex;
  margin-top: 14px;
  background: var(--mint);
}

.ad-slot {
  min-height: 110px;
  border: 2px dashed #b9acbd;
  border-radius: 8px;
  background: repeating-linear-gradient(135deg, #fff, #fff 12px, #fff8fc 12px, #fff8fc 24px);
  color: var(--muted);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 18px;
}

.ad-slot span {
  display: block;
  font-size: 0.72rem;
  font-weight: 900;
  color: var(--pink);
}

.ad-slot strong {
  display: block;
  font-size: 0.92rem;
}

.index-grid,
.link-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.index-tile strong,
.link-card strong {
  display: block;
  font-size: 1.03rem;
}

.index-tile span,
.link-card span {
  color: var(--muted);
  font-weight: 800;
}

.empty {
  border: 2px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  padding: 22px;
  color: var(--muted);
  font-weight: 800;
}

.static-page {
  width: min(900px, calc(100% - 32px));
  margin: 24px auto 56px;
}

.static-page h2 {
  border-left: 8px solid var(--pink);
  padding-left: 10px;
}

.site-footer {
  border-top: 4px solid var(--ink);
  background: var(--ink);
  color: var(--white);
}

.footer-inner {
  padding: 28px 0;
}

.footer-inner a {
  color: var(--yellow);
}

@media (max-width: 780px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: 12px 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero,
  .main-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 28px;
  }

  .hero-art {
    min-height: 170px;
  }

  .hero-art::before {
    width: 128px;
    height: 96px;
    right: 16px;
  }

  .hero-art::after {
    width: 160px;
    height: 118px;
  }

  .hero-art span {
    right: 30px;
    bottom: 8px;
    width: 58px;
    height: 58px;
  }

  .site-nav a,
  .chip-row button,
  .article-link {
    font-size: 0.82rem;
    padding: 6px 10px;
  }
}