/* ============================================================
   Kono Labo — スタイル
   色・余白はすべて :root の変数にまとめてあるので、
   ここを書き換えるだけで全体の印象を変えられます。
   ============================================================ */

:root {
  --bg: #fbfaf8;
  --surface: #ffffff;
  --text: #1b1a18;
  --text-muted: #6f6b66;
  --border: #e6e2dc;
  --border-strong: #d3cec6;
  --accent: #2f6f5e;
  --shadow: 0 1px 2px rgba(27, 26, 24, 0.04), 0 8px 24px rgba(27, 26, 24, 0.05);
  --shadow-hover: 0 2px 4px rgba(27, 26, 24, 0.05), 0 14px 34px rgba(27, 26, 24, 0.09);

  --radius: 14px;
  --container: 1080px;
  --space-page: clamp(1.25rem, 5vw, 2.5rem);

  --font-sans: system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN",
    "Noto Sans JP", "Yu Gothic UI", Meiryo, sans-serif;
}

/* OSの設定がダークなら自動で切り替わります */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131312;
    --surface: #1b1b19;
    --text: #eceae6;
    --text-muted: #a39e97;
    --border: #2b2a27;
    --border-strong: #3c3a36;
    --accent: #7fc7b1;
    --shadow: none;
    --shadow-hover: 0 14px 34px rgba(0, 0, 0, 0.45);
  }
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-page);
}

/* ---------- ヘッダー ---------- */

.site-header {
  padding-top: clamp(3.5rem, 10vw, 6.5rem);
  padding-bottom: clamp(2.5rem, 7vw, 4rem);
}

.site-title {
  margin: 0;
  font-size: clamp(1.9rem, 5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.site-tagline {
  margin: 0.6rem 0 0;
  max-width: 34em;
  color: var(--text-muted);
  font-size: 1rem;
}

.site-links {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  font-size: 0.875rem;
}

.site-links a {
  color: var(--text-muted);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--border-strong);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.site-links a:hover {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ---------- セクション見出し ---------- */

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.25rem);
  border-bottom: 1px solid var(--border);
}

.section-title {
  margin: 0;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.section-count {
  margin: 0;
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* ---------- カード一覧 ---------- */

.project-grid {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(1.25rem, 3vw, 1.75rem);
  grid-template-columns: 1fr; /* スマートフォン: 1列 */
}

@media (min-width: 640px) {
  .project-grid {
    /* タブレット以上: 2〜3列に自動で伸縮 */
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

.project-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.project-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}

.project-link {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.project-thumb {
  aspect-ratio: 1200 / 630; /* OGPの標準比率で揃える */
  background: linear-gradient(135deg, var(--border) 0%, var(--surface) 100%);
  overflow: hidden;
  border-bottom: 1px solid var(--border);
}

.project-image {
  width: 100%;
  height: 100%;
  object-fit: cover; /* 比率を崩さずトリミング */
  transition: transform 0.4s ease;
}

.project-card:hover .project-image {
  transform: scale(1.03);
}

.project-body {
  padding: 1.25rem 1.25rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.project-meta {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 1.4em;
}

.project-category {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* 準備中バッジ */
.project-status {
  font-size: 0.6875rem;
  line-height: 1.4;
  padding: 0.1em 0.6em;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* 準備中カード: リンクではないので、押せないことが伝わる見た目にする */
.project-card.is-wip {
  border-style: dashed;
  box-shadow: none;
}

.project-card.is-wip:hover {
  transform: none;
  border-color: var(--border);
  box-shadow: none;
}

.project-card.is-wip .project-link {
  cursor: default;
}

.project-card.is-wip .project-thumb {
  opacity: 0.55;
}

.project-card.is-wip:hover .project-image {
  transform: none;
}

.project-card.is-wip .project-title {
  color: var(--text-muted);
}

.project-title {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  line-height: 1.5;
}

.project-description {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3; /* 説明が長くても高さを揃える */
  line-clamp: 3;
  overflow: hidden;
}

/* 主リンクとは別の、控えめな補助リンク（noteなど）。目立たせすぎない */
.project-note {
  display: block;
  padding: 0.7rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
  color: var(--text-muted);
  text-decoration: none;
}

.project-note:hover {
  color: var(--text);
  text-decoration: underline;
}

/* ---------- フッター ---------- */

.site-footer {
  margin-top: clamp(4rem, 10vw, 7rem);
  padding-block: 2rem 3rem;
  color: var(--text-muted);
  font-size: 0.8125rem;
}

.footer-author {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 1.25rem;
}

.author-name {
  font-size: 1.1875rem;
  font-weight: 600;
  color: var(--text);
  ruby-position: over;
}

.author-name rt {
  font-size: 0.55em;
  font-weight: 400;
  color: var(--text-muted);
}

/* メールアドレスは「タップ/クリックでコピーできる」ことが一目で
   わかるよう、下線テキストではなくアイコン付きのチップ（ボタン）にする */
.author-email {
  appearance: none;
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.4em 0.9em;
  font: inherit;
  font-size: 0.8125rem;
  color: var(--text-muted);
  cursor: pointer;
  /* 文字列として選択されてしまうのを防ぐ（コピーはボタン経由のみ） */
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.author-email:hover {
  color: var(--text);
  border-color: var(--text-muted);
  background: var(--bg);
}

.author-email:active {
  transform: scale(0.97);
}

.author-email-icon {
  flex: none;
}

.author-email .icon-check {
  display: none;
}

.author-email.is-copied {
  color: var(--accent);
  border-color: var(--accent);
}

.author-email.is-copied .icon-copy {
  display: none;
}

.author-email.is-copied .icon-check {
  display: block;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-top: 1.5rem;
}

.footer-inner p {
  margin: 0;
}

.footer-inner .site-links {
  margin-top: 0;
  font-size: inherit;
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}