/* =========================================================================
 * 스마트 동계 올림픽 — 메인 허브 스타일 (index.css)
 * ========================================================================= */
html, body { overflow-y: auto; }
body.hub {
  min-height: 100%;
  background:
    radial-gradient(circle at 15% 0%, #1c456f 0%, transparent 50%),
    radial-gradient(circle at 85% 100%, #0e2a4d 0%, transparent 50%),
    linear-gradient(165deg, #0b1f3a 0%, #143a63 100%);
  padding-bottom: 60px;
}

.hub-header {
  text-align: center;
  padding: 48px 20px 24px;
}
.hub-header .logo { font-size: 3.4rem; line-height: 1.1; color: var(--ice-light); margin: 0; }
.hub-header .logo small { display: block; font-size: 1.1rem; color: #cfe7ff; margin-top: 10px; letter-spacing: 1px; }
.hub-header .tagline { color: #aacdf0; font-size: 1.05rem; margin-top: 14px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
  max-width: 1100px;
  margin: 24px auto;
  padding: 0 24px;
}

.card {
  position: relative;
  display: block;
  text-decoration: none;
  color: var(--snow);
  background: linear-gradient(160deg, rgba(255,255,255,0.12), rgba(255,255,255,0.04));
  border: 1px solid rgba(159, 224, 255, 0.25);
  border-radius: 24px;
  padding: 26px 24px;
  overflow: hidden;
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 16px 40px rgba(0,0,0,0.4); border-color: var(--ice-light); }
.card .emoji { font-size: 3rem; display: block; }
.card .title { font-size: 1.5rem; margin: 12px 0 6px; color: var(--ice-light); }
.card .skill { display: inline-block; font-size: .85rem; background: rgba(31,122,224,0.4); padding: 4px 12px; border-radius: 12px; margin-bottom: 10px; }
.card .desc { font-size: .98rem; color: #cfe7ff; line-height: 1.5; }
.card .new {
  position: absolute; top: 14px; right: -34px;
  background: #e0427a; color: #fff; font-size: .8rem;
  padding: 4px 38px; transform: rotate(45deg);
}

.hub-footer {
  text-align: center; color: #8fb4d8; font-size: .9rem;
  margin-top: 40px; padding: 0 20px; line-height: 1.7;
}
.hub-footer a { color: var(--ice-light); cursor: pointer; }

/* 개인정보 모달 */
#privacy-modal {
  position: fixed; inset: 0; display: none;
  align-items: center; justify-content: center;
  background: rgba(7,23,44,0.85); z-index: 50; padding: 20px;
}
#privacy-modal.show { display: flex; }
.privacy-card {
  background: #fff; color: var(--ice-deep);
  border-radius: 22px; padding: 28px; max-width: 540px;
  max-height: 80vh; overflow-y: auto;
}
.privacy-card h2 { color: var(--ice-blue); margin-top: 0; }
.privacy-card ol { line-height: 1.7; padding-left: 22px; }
.privacy-card .close {
  margin-top: 16px; width: 100%; font-family: inherit; font-size: 1.1rem;
  background: var(--ice-blue); color: #fff; border: none; border-radius: 14px; padding: 12px; cursor: pointer;
}

@media (max-width: 600px) {
  .hub-header .logo { font-size: 2.4rem; }
  .grid { grid-template-columns: 1fr; }
}