*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f0f0f;
  --card: #1a1a2e;
  --input: #1e2a45;
  --accent: #e94560;
  --accent2: #ff6b81;
  --text: #eee;
  --dim: #889;
  --border: #2a2a4a;
  --radius: 8px;
}

html { font-size: 15px; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); min-height: 100vh; }
.hidden { display: none !important; }

/* Login */
.screen { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { text-align: center; }
.login-box h1 { font-size: 2.4rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 1.5rem; }
.btn-google { display: inline-flex; align-items: center; gap: .6rem; padding: .7rem 1.8rem; background: #fff; color: #333; border: none; border-radius: var(--radius); font-size: 1rem; font-weight: 600; cursor: pointer; }
.btn-google:hover { box-shadow: 0 4px 16px rgba(233,69,96,.3); }

/* Nav */
.nav { display: flex; align-items: center; justify-content: space-between; padding: .6rem 1.2rem; background: rgba(15,15,15,.95); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-left { display: flex; align-items: center; gap: 1rem; }
.nav-right { display: flex; align-items: center; gap: .8rem; }
.logo { font-size: 1.2rem; font-weight: 800; background: linear-gradient(135deg, var(--accent), var(--accent2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.user-email { font-size: .8rem; color: var(--dim); }
.btn-logout { padding: .3rem .7rem; background: none; border: 1px solid var(--border); border-radius: var(--radius); color: var(--dim); font-size: .8rem; cursor: pointer; }
.btn-logout:hover { border-color: var(--accent); color: var(--text); }

/* Tabs */
.tab { display: none; padding: 1.2rem; max-width: 600px; margin: 0 auto; }
.tab.active { display: block; }
.tab h2 { font-size: 1.2rem; margin-bottom: 1rem; }

/* Search */
#tab-search.active { min-height: calc(100vh - 45px); display: flex; flex-direction: column; justify-content: center; }
#tab-search.active:has(.card) { justify-content: flex-start; }
.search-bar { display: flex; gap: .5rem; margin-bottom: 1.2rem; }
.search-bar input { flex: 1; padding: .6rem 1rem; background: var(--input); border: 1px solid var(--border); border-radius: var(--radius); color: var(--text); font-size: .95rem; outline: none; text-transform: uppercase; }
.search-bar input:focus { border-color: var(--accent); }
.btn-primary { padding: .6rem 1.2rem; background: var(--accent); color: #fff; border: none; border-radius: var(--radius); font-size: .9rem; font-weight: 600; cursor: pointer; }
.btn-primary:hover { background: var(--accent2); }

/* Pagination */
.pagination { display: flex; align-items: center; justify-content: center; gap: .8rem; margin-top: 1rem; padding: .5rem 0; }
.page-btn { padding: .4rem 1rem; background: none; border: 1px solid var(--border); border-radius: var(--radius); color: var(--dim); font-size: .85rem; cursor: pointer; }
.page-btn:hover { border-color: var(--accent); color: var(--text); }
.page-info { font-size: .85rem; color: var(--dim); }

/* Card - 한 줄 */
.card { display: flex; align-items: center; justify-content: space-between; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: .7rem 1rem; margin-bottom: .5rem; }
.card.clickable { cursor: pointer; }
.card.clickable:hover { border-color: var(--accent); background: rgba(233,69,96,.06); }
.card-code { font-size: 1rem; font-weight: 700; color: var(--accent); letter-spacing: .5px; }
.score { font-size: .85rem; color: var(--dim); }

.spinner { display: inline-block; width: 32px; height: 32px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Loading */
.loading { text-align: center; padding: 3rem 1rem; color: var(--dim); }
.loading .spinner { margin: 0 auto .8rem; }

/* Empty */
.empty { text-align: center; padding: 3rem 1rem; color: var(--dim); }


@media (max-width: 600px) {
  .nav { flex-wrap: wrap; gap: .4rem; }
  .search-bar { flex-direction: column; }
}