:root {
  --bg-1: #081122;
  --bg-2: #0f1f3d;
  --card: rgba(11, 20, 38, 0.78);
  --line: rgba(255, 255, 255, 0.12);
  --text: #f8fbff;
  --muted: #b6c3d7;
  --blue: #4da3ff;
  --blue-strong: #2f80ed;
  --cyan: #4de0ff;
  --demo: #9b7bff;
  --demo-strong: #7a5cff;
  --shadow: 0 18px 70px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "Pretendard", "Noto Sans KR", Arial, sans-serif;
  background: radial-gradient(circle at top left, #15315f 0%, var(--bg-1) 38%), linear-gradient(135deg, var(--bg-1), var(--bg-2));
  color: var(--text);
}

body {
  min-height: 100vh;
}

.landing-shell {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px;
  overflow: hidden;
}

.landing-bg {
  position: absolute;
  border-radius: 999px;
  filter: blur(10px);
  opacity: 0.55;
}

.landing-bg-1 {
  width: 420px;
  height: 420px;
  background: rgba(77, 163, 255, 0.18);
  top: -110px;
  left: -90px;
}

.landing-bg-2 {
  width: 360px;
  height: 360px;
  background: rgba(155, 123, 255, 0.16);
  right: -80px;
  bottom: -70px;
}

.landing-card {
  position: relative;
  width: min(1040px, 100%);
  padding: 38px;
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--card);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.brand-area {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 28px;
  align-items: center;
}

.logo-wrap {
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 28px;
  background: linear-gradient(180deg, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.08);
}

.brand-logo {
  max-width: 140px;
  max-height: 140px;
  object-fit: contain;
}

.brand-fallback {
  width: 132px;
  height: 132px;
  border-radius: 26px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: linear-gradient(135deg, rgba(77,163,255,0.18), rgba(77,224,255,0.08));
  border: 1px solid rgba(255,255,255,0.14);
  color: #ffffff;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.brand-fallback-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  box-shadow: 0 0 18px rgba(77, 224, 255, 0.6);
}

.eyebrow {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(77,163,255,0.12);
  color: #a8d4ff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.brand-copy h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 4vw, 48px);
  line-height: 1.08;
}

.brand-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.72;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.entry-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px;
  border-radius: 26px;
  text-decoration: none;
  color: inherit;
  border: 1px solid rgba(255,255,255,0.08);
  min-height: 220px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.entry-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.2);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.18);
}

.entry-card.admin {
  background: linear-gradient(180deg, rgba(77,163,255,0.14), rgba(77,163,255,0.05));
}

.entry-card.demo {
  background: linear-gradient(180deg, rgba(155,123,255,0.16), rgba(155,123,255,0.05));
}

.entry-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.entry-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  height: 28px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255,255,255,0.12);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
}

.demo-badge {
  background: rgba(122, 92, 255, 0.32);
}

.entry-arrow {
  font-size: 24px;
  color: rgba(255,255,255,0.66);
}

.entry-card h2 {
  margin: 0;
  font-size: 32px;
  line-height: 1;
}

.entry-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  font-size: 15px;
}

.entry-meta {
  margin-top: auto;
  color: #ffffff;
  font-size: 14px;
  font-weight: 700;
}

.landing-footer {
  margin-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.about-link {
  color: #d6ebff;
  text-decoration: none;
  font-weight: 700;
}

.about-link:hover {
  text-decoration: underline;
}

.footer-note {
  color: rgba(255,255,255,0.56);
  font-size: 13px;
}

@media (max-width: 860px) {
  .landing-card {
    padding: 24px;
    border-radius: 24px;
  }

  .brand-area {
    grid-template-columns: 1fr;
  }

  .logo-wrap {
    min-height: 120px;
  }

  .action-grid {
    grid-template-columns: 1fr;
  }

  .landing-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .landing-shell {
    padding: 14px;
  }

  .entry-card h2 {
    font-size: 28px;
  }

  .brand-copy p,
  .entry-card p {
    font-size: 14px;
  }
}