:root {
  --c-bg: #fafaf7;
  --c-text: #2d2a26;
  --c-muted: #6b6660;
  --c-accent: #06c755;       /* LINE green */
  --c-accent-soft: #e6f7ee;
  --c-card: #ffffff;
  --c-border: #ece8e2;
  --c-released: #06c755;
  --c-approved: #f5a623;
  --c-submitted: #6b9ce9;
  --c-draft: #b0aaa3;
  --radius: 16px;
  --shadow: 0 6px 24px rgba(20, 20, 20, 0.06);
  --shadow-hover: 0 12px 32px rgba(20, 20, 20, 0.10);
  --transition: 200ms ease;
  --max-width: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Yu Gothic UI", "Segoe UI", sans-serif;
  background: var(--c-bg);
  color: var(--c-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--c-accent);
  text-decoration: none;
}
a:hover { text-decoration: underline; }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */

.site-header {
  background: linear-gradient(180deg, #ffffff 0%, var(--c-bg) 100%);
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--c-border);
}
.site-header--compact { padding: 24px 0 16px; }

.site-title {
  font-size: clamp(24px, 4vw, 32px);
  font-weight: 800;
  margin: 0 0 8px;
  letter-spacing: 0.02em;
}
.site-title.is-small { font-size: 18px; font-weight: 700; }
.site-title a { color: inherit; }
.site-title a:hover { text-decoration: none; opacity: 0.7; }

.site-tagline {
  font-size: 16px;
  color: var(--c-muted);
  margin: 0 0 16px;
}

.site-bio {
  font-size: 14px;
  color: var(--c-muted);
  margin: 0 0 16px;
  max-width: 720px;
}

.site-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.site-links a {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  background: #fff;
  color: var(--c-text);
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}
.site-links a:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
  text-decoration: none;
}

.back-link {
  margin: 0 0 8px;
  font-size: 14px;
}
.back-link a { color: var(--c-muted); }

/* ===== Filter ===== */

.section-title {
  font-size: 18px;
  font-weight: 700;
  margin: 32px 0 16px;
}

.status-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
}
.filter-btn {
  background: #fff;
  border: 1px solid var(--c-border);
  color: var(--c-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.filter-btn:hover {
  border-color: var(--c-accent);
  color: var(--c-accent);
}
.filter-btn.is-active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
}

.result-count {
  font-size: 13px;
  color: var(--c-muted);
  margin: 4px 0 16px;
  min-height: 1em;
}

/* ===== Stamp Grid ===== */

.stamp-grid {
  list-style: none;
  padding: 0;
  margin: 0 0 64px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.stamp-grid__loading,
.stamp-grid__empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 48px 16px;
  color: var(--c-muted);
}

.card {
  background: var(--c-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.card a {
  color: inherit;
  text-decoration: none;
  display: block;
}

.card__thumb {
  aspect-ratio: 1 / 1;
  background: var(--c-accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.card__thumb img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}

.card__body {
  padding: 16px 18px 20px;
}
.card__title {
  font-size: 15px;
  font-weight: 700;
  margin: 0 0 4px;
  line-height: 1.4;
}
.card__subtitle {
  font-size: 12px;
  color: var(--c-muted);
  margin: 0 0 12px;
}
.card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.tag {
  font-size: 11px;
  background: var(--c-bg);
  color: var(--c-muted);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--c-border);
}

/* ===== Status Badges ===== */

.badge {
  position: absolute;
  top: 12px;
  right: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.04em;
  z-index: 1;
}
.badge--released { background: var(--c-released); }
.badge--approved { background: var(--c-approved); }
.badge--submitted { background: var(--c-submitted); }
.badge--draft    { background: var(--c-draft); }

.badge-new {
  position: absolute;
  top: 12px;
  left: 12px;
  background: #ff3366;
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.05em;
  animation: pulse 2s infinite;
  z-index: 1;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

/* ===== Detail Page ===== */

.detail-main { padding: 24px 20px 64px; }

.detail-hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 32px;
}
@media (max-width: 720px) {
  .detail-hero {
    grid-template-columns: 1fr;
    padding: 24px;
    gap: 24px;
  }
}

.detail-hero__main {
  background: var(--c-accent-soft);
  border-radius: var(--radius);
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px;
}
.detail-hero__main img { max-width: 80%; max-height: 80%; object-fit: contain; }

.detail-hero__info h1 {
  font-size: clamp(22px, 3vw, 28px);
  margin: 0 0 8px;
  line-height: 1.3;
}
.detail-hero__subtitle {
  color: var(--c-muted);
  margin: 0 0 16px;
}

.detail-meta {
  list-style: none;
  padding: 0;
  margin: 16px 0;
  font-size: 14px;
}
.detail-meta li {
  display: flex;
  padding: 8px 0;
  border-bottom: 1px solid var(--c-border);
}
.detail-meta li:last-child { border-bottom: none; }
.detail-meta__label {
  flex: 0 0 100px;
  color: var(--c-muted);
  font-weight: 600;
}
.detail-meta__value { flex: 1; }

.cta-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--c-accent);
  color: #fff !important;
  font-weight: 700;
  padding: 14px 24px;
  border-radius: 999px;
  font-size: 15px;
  transition: var(--transition);
  margin-top: 16px;
  text-decoration: none !important;
}
.cta-button:hover {
  background: #05a548;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}
.cta-button:disabled,
.cta-button.is-disabled {
  background: var(--c-border);
  color: var(--c-muted) !important;
  cursor: not-allowed;
  pointer-events: none;
}

.detail-section {
  background: var(--c-card);
  border-radius: var(--radius);
  padding: 28px 32px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
}
@media (max-width: 720px) { .detail-section { padding: 20px; } }

.detail-section h2 {
  font-size: 18px;
  margin: 0 0 16px;
}

.sample-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 12px;
}
.sample-grid li {
  list-style: none;
  background: var(--c-accent-soft);
  border-radius: 12px;
  padding: 12px;
  aspect-ratio: 1 / 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sample-grid img { max-width: 100%; max-height: 100%; object-fit: contain; }

/* ===== Announcement (Release Draft) ===== */

.announcement {
  background: var(--c-accent-soft);
  border: 2px solid var(--c-accent);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}
.announcement h2 {
  margin-top: 0;
  color: var(--c-accent);
}
.announcement__draft {
  background: #fff;
  border-radius: 12px;
  padding: 16px;
  margin: 12px 0;
  position: relative;
}
.announcement__draft pre {
  white-space: pre-wrap;
  word-wrap: break-word;
  font-family: inherit;
  font-size: 14px;
  margin: 0 0 12px;
  line-height: 1.7;
}
.copy-btn {
  background: var(--c-accent);
  color: #fff;
  border: none;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}
.copy-btn:hover { background: #05a548; }
.copy-btn.is-copied { background: var(--c-muted); }

.tag-list { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }

/* ===== Footer ===== */

.site-footer {
  background: #fff;
  border-top: 1px solid var(--c-border);
  padding: 32px 0;
  margin-top: 64px;
}
.site-footer p { margin: 0 0 8px; color: var(--c-muted); font-size: 13px; }
.footer-note { font-size: 12px; }

/* ===== Loading / Error ===== */

.loading {
  text-align: center;
  padding: 64px 24px;
  color: var(--c-muted);
}
.error {
  background: #fff5f5;
  border: 1px solid #ffd2d2;
  color: #c1272d;
  padding: 16px 20px;
  border-radius: var(--radius);
  margin: 24px 0;
}