:root {
  --bg: #fdf3e1;
  --surface: #ffffff;
  --ink: #16161f;
  --ink-soft: #55506a;
  --accent: #0d3a63;
  --accent-soft: #e7edf3;
  --border: #16161f;
  --radius: 20px;
  --shadow: 5px 5px 0 var(--border);
  --shadow-sm: 3px 3px 0 var(--border);
  --yellow: #ffd43b;
  --pink: #ff5da2;
  --purple: #7c6ee6;
  --teal: #2ec4b6;
  --orange: #ff8a3d;
  --upcoming: #b5460a;
  --upcoming-soft: var(--yellow);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic", "Noto Sans JP", sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.7;
}

.site-header {
  background: var(--bg);
  color: var(--ink);
  padding: 44px 20px 40px;
  position: relative;
  overflow: hidden;
  border-bottom: 3px solid var(--border);
}

.site-header::before,
.site-header::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  z-index: 0;
}

.site-header::before {
  width: 220px;
  height: 220px;
  background: var(--yellow);
  top: -110px;
  right: -60px;
}

.site-header::after {
  width: 130px;
  height: 130px;
  background: var(--teal);
  bottom: -80px;
  right: 160px;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.logo-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  padding: 8px 20px 8px 8px;
  border-radius: 999px;
  margin-bottom: 18px;
  border: 2.5px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--yellow);
  border: 2.5px solid var(--border);
  color: var(--ink);
  font-weight: 900;
  font-size: 1.1rem;
  line-height: 1;
}

.logo-text {
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.logo-text-accent {
  color: var(--pink);
}

.site-header h1 {
  margin: 0 0 12px;
  font-size: 2.4rem;
  font-weight: 900;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-shadow: 4px 4px 0 var(--pink);
  display: inline-block;
}

.subtitle {
  margin: 0;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
}

.workshop-link {
  display: inline-block;
  margin-top: 20px;
  padding: 10px 22px;
  border: 2.5px solid var(--border);
  border-radius: 999px;
  background: var(--yellow);
  color: var(--ink);
  font-weight: 700;
  font-size: 0.88rem;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.workshop-link:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--border);
}

.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 20px 60px;
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}

.filter-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.filter-btn {
  border: 2.5px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  padding: 7px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.filter-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--border);
}

.filter-btn.active {
  background: var(--purple);
  border-color: var(--border);
  color: #fff;
  transform: translate(-2px, -2px);
  box-shadow: 5px 5px 0 var(--border);
}

.filter-count {
  display: inline-block;
  min-width: 1.4em;
  padding: 0 5px;
  margin-left: 2px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.1);
  font-size: 0.75em;
  font-weight: 700;
}

.filter-btn.active .filter-count {
  background: rgba(255, 255, 255, 0.3);
}

.updated-at {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--ink-soft);
}

.upcoming-section {
  margin-bottom: 36px;
  padding-bottom: 30px;
  border-bottom: 3px dashed var(--border);
}

.section-title {
  margin: 0 0 16px;
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--ink);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.news-card {
  background: var(--surface);
  border: 2.5px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.news-card:hover {
  box-shadow: 7px 7px 0 var(--border);
  transform: translate(-2px, -2px);
}

.news-card.upcoming {
  background: #fff9ec;
}

.news-card.column {
  background: #f6f2ff;
}

.card-category.category-column {
  background: var(--purple);
  color: #fff;
  border-color: var(--border);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  color: var(--ink-soft);
  letter-spacing: 0.01em;
}

.card-category {
  background: var(--yellow);
  color: var(--ink);
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 800;
  border: 2px solid var(--border);
}

.card-country {
  padding: 2px 10px;
  border: 2px solid var(--border);
  border-radius: 999px;
  color: var(--ink);
  font-weight: 700;
  background: #fff;
}

.card-date {
  margin-left: auto;
  color: var(--ink-soft);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.card-date.badge-upcoming {
  background: var(--orange);
  color: #fff;
  padding: 3px 12px;
  border-radius: 999px;
  font-weight: 800;
  border: 2px solid var(--border);
}

.news-card h2 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 800;
  line-height: 1.5;
  color: var(--ink);
}

.news-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-soft);
  flex: 1;
}

.card-source {
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 6px;
  padding-top: 12px;
  border-top: 2px dashed var(--border);
  color: var(--ink-soft);
}

.card-source a {
  color: var(--pink);
  text-decoration: none;
  font-weight: 800;
}

.card-source a:hover {
  text-decoration: underline;
}

.loading {
  color: var(--ink-soft);
  font-weight: 700;
}

.site-footer {
  border-top: 3px solid var(--border);
  padding: 22px;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--ink-soft);
  background: var(--bg);
}