/* ==========================================================================
   ALLAZIN 制作サンプル一覧ページ
   LUNA HAIR / SENA HAIR など、個々のサンプルサイトのデザインには寄せず、
   制作会社の実績ギャラリーとして、白ベース・余白多め・落ち着いた配色にしています。
   ========================================================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f7f7f5;
  --color-text: #2b2b2a;
  --color-text-muted: #6b6b68;
  --color-border: #e3e2df;
  --color-accent: #2b2b2a;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
  font-size: 17px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ---- Header ---- */
.site-header {
  padding: 26px clamp(20px, 5vw, 64px);
  border-bottom: 1px solid var(--color-border);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .12em;
}
.brand-sub {
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--color-text-muted);
}

/* ---- Hero ---- */
.hero {
  padding: clamp(56px, 8vw, 96px) clamp(20px, 5vw, 64px) clamp(24px, 3vw, 36px);
  text-align: center;
}
.hero-inner { max-width: 720px; margin: 0 auto; }
.hero h1 {
  margin: 0;
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: .04em;
}
.hero-lead {
  margin: 20px 0 0;
  font-size: 17px;
  color: var(--color-text-muted);
}
.hero-note {
  display: inline-block;
  margin: 28px auto 0;
  padding: 14px 20px;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-text-muted);
  text-align: left;
}

/* ---- Category nav（業種でさがす） ---- */
/* 業種が増えても折り返して並ぶだけなので、ボタンを追加するだけでOKです */
.category-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin: 28px auto 0;
}
.category-nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 10px 24px;
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-accent);
  background: var(--color-bg);
  transition: background .2s ease, color .2s ease;
}
.category-nav-btn:hover,
.category-nav-btn:focus-visible {
  background: var(--color-accent);
  color: var(--color-bg);
}

/* ---- Gallery ---- */
.gallery {
  padding: clamp(8px, 2vw, 16px) clamp(20px, 5vw, 64px) clamp(80px, 8vw, 120px);
}

/* 業種ごとのグループ。今後カテゴリが増えてもこの繰り返しで対応できます */
.category-group {
  max-width: 1200px;
  margin: 0 auto;
}
.category-group + .category-group {
  margin-top: clamp(48px, 6vw, 80px);
}

.category-heading {
  scroll-margin-top: 24px;
  margin: 0 0 clamp(20px, 2.5vw, 28px);
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 700;
  letter-spacing: .06em;
}
.gallery-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 360px));
  justify-content: center;
  gap: clamp(24px, 3vw, 40px);
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  transition: box-shadow .25s ease, transform .25s ease;
}
.card:hover,
.card:focus-visible {
  box-shadow: 0 18px 40px rgba(43, 43, 42, .12);
  transform: translateY(-4px);
}

.card-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--color-bg-soft);
}
.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .35s ease;
}
.card:hover .card-thumb img { transform: scale(1.04); }

.card-body {
  padding: 24px 26px 28px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.card-tag {
  align-self: flex-start;
  padding: 5px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--color-text-muted);
}

.card-name {
  margin: 16px 0 4px;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .02em;
}

.card-type {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-text);
}

.card-desc {
  margin: 14px 0 0;
  font-size: 15px;
  line-height: 1.9;
  color: var(--color-text-muted);
  flex: 1;
}

.card-cta {
  margin-top: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--color-accent);
  border-bottom: 1px solid var(--color-accent);
  padding-bottom: 3px;
  align-self: flex-start;
}
.card-cta span { transition: transform .25s ease; }
.card:hover .card-cta span { transform: translateX(4px); }

/* ---- Footer ---- */
.site-footer {
  padding: 28px clamp(20px, 5vw, 64px) 40px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}
.site-footer p {
  margin: 0;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--color-text-muted);
}

/* ---- Responsive ---- */
/* カードの列数は .gallery-grid の auto-fit が幅に応じて自動調整します */
@media (max-width: 640px) {
  body { font-size: 16px; }
  .hero-note { display: block; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}