:root {
  --bg-1: #f4f7fb;
  --bg-2: #e6eef9;
  --panel: #ffffff;
  --text: #17283f;
  --muted: #556a85;
  --line: #d1dceb;
  --landing-content-max-width: 560px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: "Pretendard", "Noto Sans KR", sans-serif;
  color: var(--text);
  background: linear-gradient(160deg, var(--bg-1), var(--bg-2));
}

.public-landing {
  min-height: 100vh;
  padding: 18px 14px 28px;
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 14px;
}

.public-hero {
  width: min(var(--landing-content-max-width), 100%);
  display: grid;
  gap: 10px;
}

.public-banner-link {
  text-decoration: none;
  color: inherit;
}

.public-banner {
  position: relative;
  width: 100%;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #c7d6ee;
  box-shadow: 0 14px 28px rgba(15, 38, 68, 0.2);
  background: #1e3a8a;
}

.public-banner::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 19, 44, 0.04), rgba(8, 19, 44, 0.12));
  pointer-events: none;
}

.public-banner-image {
  width: 100%;
  height: auto;
  display: block;
}

.public-card {
  width: min(var(--landing-content-max-width), 100%);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--panel);
  box-shadow: 0 18px 40px rgba(11, 31, 58, 0.12);
  padding: 24px;
  display: grid;
  gap: 14px;
}

.public-card h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.35;
}

.public-muted {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.public-actions {
  display: grid;
  gap: 10px;
}

.public-social-inline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  margin-top: 6px;
}

.public-social-icon-link {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  border-radius: 999px;
  transition: transform 0.14s ease, opacity 0.14s ease;
}

.public-social-icon-link img {
  width: 26px;
  height: 26px;
  display: block;
  filter: grayscale(1) brightness(0) contrast(1.05);
}

.public-social-icon-link:hover {
  transform: translateY(-1px);
  opacity: 0.76;
}

.public-link {
  display: block;
  text-decoration: none;
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 13px 14px;
  color: var(--text);
}

.public-link strong {
  display: block;
  font-size: 15px;
  margin-bottom: 3px;
}

.public-link span {
  font-size: 13px;
  color: var(--muted);
}

.public-link-map {
  background: #f1f5fb;
  border-color: #c8d6eb;
}

.public-link-map:hover {
  background: #e5edf8;
}

.public-link-profile {
  background: #f5f2ee;
  border-color: #ddd2c3;
}

.public-link-profile:hover {
  background: #ebe3d8;
}

.public-system-link {
  justify-self: start;
  font-size: 13px;
  color: #2f4f77;
  text-decoration: none;
  border-bottom: 1px solid #a8bbd6;
}

.public-system-link:hover {
  color: #1a3d69;
}

@media (max-width: 640px) {
  .public-landing {
    padding: 10px 10px 22px;
    gap: 10px;
  }

  .public-banner {
    border-radius: 12px;
  }

  .public-social-inline {
    gap: 24px;
    margin-top: 4px;
  }

  .public-social-icon-link {
    width: 30px;
    height: 30px;
  }

  .public-social-icon-link img {
    width: 24px;
    height: 24px;
  }

  .public-card {
    border-radius: 14px;
    padding: 18px;
  }

  .public-card h1 {
    font-size: 21px;
  }
}