@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css");
    @import url("https://fonts.googleapis.com/css2?family=Sora:wght@500;600;700&display=swap");

    :root {
      --bg: #0b1020;
      --card: #141b2d;
      --card-2: #0f172a;
      --card-border: rgba(148,163,184,.18);
      --text: #e2e8f0;
      --muted: #94a3b8;
      --primary: linear-gradient(90deg, #f59e0b, #22c55e);
      --bg-grad-1: #0ea5e933;
      --bg-grad-2: #f9731633;
      --btn-sub-bg: #0f172a;
      --btn-sub-text: var(--text);
      --shadow: 0 20px 50px rgba(15,23,42,.35);
    }

    [data-theme="light"] {
      --bg: #f8fafc;
      --card: #ffffff;
      --card-2: #f1f5f9;
      --card-border: rgba(15,23,42,.12);
      --text: #0f172a;
      --muted: #475569;
      --primary: linear-gradient(90deg, #f97316, #0ea5e9);
      --bg-grad-1: #f59e0b22;
      --bg-grad-2: #38bdf822;
      --btn-sub-bg: #ffffff;
      --btn-sub-text: #0f172a;
      --shadow: 0 12px 30px rgba(15,23,42,.12);
    }

    * { box-sizing: border-box; }

    body {
      margin: 0;
      min-height: 100vh;
      background: radial-gradient(800px 400px at 15% 0%, var(--bg-grad-1), transparent),
                  radial-gradient(900px 500px at 85% 100%, var(--bg-grad-2), transparent),
                  var(--bg);
      color: var(--text);
      font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", sans-serif;
    }

    h1, h2, h3, .brand {
      font-family: "Sora", "Pretendard", "Noto Sans KR", sans-serif;
      margin: 0;
    }

    a { color: inherit; text-decoration: none; }

    .app {
      width: min(900px, 92vw);
      margin: 0 auto;
      padding: 30px 0 80px;
      display: grid;
      gap: 24px;
    }

    .top-bar {
      margin-top: 10px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding: 18px 22px;
      background: var(--card);
      border: 1px solid var(--card-border);
      border-radius: 18px;
      box-shadow: var(--shadow);
    }

    .brand {
      display: flex;
      align-items: center;
      gap: 12px;
      font-size: 20px;
      font-weight: 700;
    }

    .brand-badge {
      padding: 6px 12px;
      border-radius: 999px;
      background: var(--primary);
      color: #0b1020;
      font-size: 12px;
      font-weight: 700;
    }

    .btn-sub {
      padding: 10px 14px;
      border-radius: 14px;
      border: 1px solid var(--card-border);
      background: var(--btn-sub-bg);
      color: var(--btn-sub-text);
      cursor: pointer;
      font-weight: 600;
    }

    .lang-select {
      appearance: none;
      padding: 10px 32px 10px 12px;
      border-radius: 14px;
      border: 1px solid var(--card-border);
      background: var(--btn-sub-bg);
      color: var(--btn-sub-text);
      font-weight: 600;
      cursor: pointer;
      background-image: linear-gradient(45deg, transparent 50%, var(--btn-sub-text) 50%),
                        linear-gradient(135deg, var(--btn-sub-text) 50%, transparent 50%);
      background-position: calc(100% - 16px) 16px, calc(100% - 10px) 16px;
      background-size: 6px 6px, 6px 6px;
      background-repeat: no-repeat;
    }

    .card {
      background: var(--card);
      border: 1px solid var(--card-border);
      border-radius: 18px;
      padding: 22px;
      box-shadow: var(--shadow);
      display: grid;
      gap: 14px;
      line-height: 1.7;
    }

    .site-footer {
      padding: 18px 20px;
      background: var(--card);
      border: 1px solid var(--card-border);
      border-radius: 18px;
      display: grid;
      gap: 10px;
      color: var(--muted);
      font-size: 13px;
    }

    .footer-links {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      font-weight: 600;
      color: var(--text);
    }

    .footer-links a {
      padding: 6px 10px;
      border-radius: 999px;
      background: var(--card-2);
      border: 1px solid var(--card-border);
    }

/* Header layout */
.top-bar {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 16px;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.menu-dropdown {
  position: relative;
}

.menu-summary {
  list-style: none;
  cursor: pointer;
}

.menu-summary::-webkit-details-marker {
  display: none;
}

.menu-panel {
  position: absolute;
  left: 0;
  margin-top: 10px;
  min-width: 200px;
  padding: 12px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 8px;
  z-index: 10;
}

.menu-panel a {
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--card-2);
  border: 1px solid var(--card-border);
  font-weight: 600;
}

.settings-menu {
  position: relative;
}

.settings-summary {
  list-style: none;
  cursor: pointer;
}

.settings-summary::-webkit-details-marker {
  display: none;
}

.settings-panel {
  position: absolute;
  right: 0;
  margin-top: 10px;
  min-width: 220px;
  padding: 12px;
  border-radius: 14px;
  background: var(--card);
  border: 1px solid var(--card-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 10px;
  z-index: 10;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.settings-label {
  font-size: 12px;
  color: var(--muted);
}

.settings-panel .lang-select {
  width: 140px;
  padding: 10px 32px 10px 12px;
  background-position: calc(100% - 16px) 14px, calc(100% - 10px) 14px;
}

@media (max-width: 900px) {
  .top-bar {
    grid-template-columns: 1fr;
    justify-items: stretch;
  }

  .header-left {
    justify-content: flex-start;
  }

  .header-right {
    justify-content: flex-end;
  }

  .menu-panel,
  .settings-panel {
    left: 0;
    right: auto;
  }
}
.theme-icon {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  padding: 0;
}