:root {
      --bg: #f4f1ea;
      --surface: #fffdf8;
      --text: #292722;
      --subtext: #716d64;
      --border: #d9d2c4;
      --accent: #9f3f34;
      --accent-soft: #f2e4df;
      --shadow: rgba(42, 36, 27, 0.08);
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      min-height: 100vh;
      background:
        linear-gradient(rgba(255, 255, 255, 0.34), rgba(255, 255, 255, 0.34)),
        var(--bg);
      color: var(--text);
      font-family:
        "Hiragino Kaku Gothic ProN",
        "Yu Gothic",
        Meiryo,
        sans-serif;
    }

    a {
      color: inherit;
    }

    .site-header {
      border-bottom: 1px solid rgba(217, 210, 196, 0.8);
      background: rgba(255, 253, 248, 0.72);
      backdrop-filter: blur(10px);
    }

    .header-inner,
    main,
    .app-credit {
      width: min(960px, calc(100% - 40px));
      margin-inline: auto;
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      min-height: 64px;
      gap: 24px;
    }

    .header-inner h1 {
      margin: 0;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: 0.05em;
      line-height: 1.2;
    }

    .site-nav {
      display: flex;
      gap: 18px;
      font-size: 14px;
    }

    .site-nav a {
      color: var(--subtext);
      text-decoration: none;
    }

    .site-nav a:hover {
      color: var(--accent);
    }

    main {
      padding-block: 72px 56px;
    }

    .category + .category {
      margin-top: 56px;
    }

    .category-heading {
      display: flex;
      align-items: baseline;
      gap: 12px;
      margin-bottom: 18px;
    }

    .category-heading h2 {
      margin: 0;
      font-size: 18px;
      letter-spacing: 0.035em;
    }

    .category-heading p {
      margin: 0;
      color: var(--subtext);
      font-size: 13px;
    }

    .app-list {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 16px;
      margin: 0;
      padding: 0;
      list-style: none;
    }

    .app-card {
      position: relative;
      min-height: 150px;
      border: 1px solid var(--border);
      border-radius: 16px;
      background: var(--surface);
      box-shadow: 0 5px 18px var(--shadow);
      overflow: hidden;
      transition:
        transform 0.18s ease,
        box-shadow 0.18s ease,
        border-color 0.18s ease;
    }

    .app-card:hover {
      transform: translateY(-3px);
      border-color: #bdb2a1;
      box-shadow: 0 12px 30px rgba(42, 36, 27, 0.12);
    }

    .app-card a {
      display: flex;
      min-height: 150px;
      flex-direction: column;
      justify-content: space-between;
      padding: 22px 54px 22px 22px;
      text-decoration: none;
    }

    .app-card::after {
      content: "↗";
      position: absolute;
      right: 22px;
      bottom: 21px;
      color: var(--accent);
      font-size: 18px;
      pointer-events: none;
    }

    .app-title-row {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 9px;
    }

    .app-title {
      font-size: 16px;
      font-weight: 700;
      letter-spacing: 0.025em;
    }

    .status {
      display: inline-flex;
      align-items: center;
      min-height: 24px;
      padding: 3px 9px;
      border-radius: 999px;
      background: var(--accent-soft);
      color: var(--accent);
      font-size: 11px;
      font-weight: 700;
      letter-spacing: 0.04em;
    }

    .app-description {
      display: block;
      margin-top: 18px;
      color: var(--subtext);
      font-size: 14px;
      line-height: 1.75;
    }

    @media (max-width: 720px) {
      .header-inner,
      main,
      .app-credit {
        width: min(100% - 28px, 960px);
      }

      .site-nav {
        gap: 12px;
      }

      main {
        padding-block: 52px 44px;
      }

      .app-list {
        grid-template-columns: 1fr;
      }
    }

    .app-credit {
      display: flex;
      justify-content: space-between;
      align-items: center;
      flex-wrap: wrap;
      gap: 12px;
      margin-top: 8px;
      padding-block: 8px 20px;
      color: var(--subtext);
      font-size: 14px;
    }

    .app-credit a {
      color: inherit;
      white-space: nowrap;
      text-decoration: underline;
      text-decoration-thickness: 1px;
      text-underline-offset: 4px;
    }

    .footer-links {
      display: flex;
      align-items: center;
      flex-wrap: wrap;
      justify-content: space-between;
      width: 100%;
      gap: 12px;
    }

    .share-button {
      appearance: none;
      margin-left: auto;
      padding: 7px 12px;
      border: 1px solid var(--border);
      border-radius: 8px;
      background: var(--surface);
      color: inherit;
      font: inherit;
      cursor: pointer;
    }
/* 
    .share-button:hover {
      border-color: var(--accent);
      color: var(--accent);
    } */

    .share-button:active {
      transform: translateY(1px);
    }

    @media (max-width: 480px) {
      .header-inner {
        gap: 12px;
      }

      .site-nav {
        flex-shrink: 0;
        font-size: 13px;
      }

      .site-nav a {
        padding-block: 12px;
      }

      main {
        padding-block: 32px 36px;
      }

      .category + .category {
        margin-top: 40px;
      }

      .category-heading {
        display: block;
        margin-bottom: 12px;
      }

      .category-heading p {
        margin-top: 6px;
      }

      .app-list {
        gap: 10px;
      }

      .app-card,
      .app-card a {
        min-height: 0;
      }

      .app-card {
        border-radius: 12px;
      }

      .app-card a {
        padding: 15px 44px 15px 16px;
      }

      .app-description {
        margin-top: 8px;
        font-size: 13px;
        line-height: 1.55;
      }

      .app-card::after {
        right: 16px;
        bottom: 15px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      html {
        scroll-behavior: auto;
      }

      .app-card {
        transition: none;
      }
    }