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

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --border: #334155;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --danger: #ef4444;
  --rank-color: #f59e0b;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding-bottom: 2rem;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

header h1 {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

#updated-at {
  font-size: 0.75rem;
  color: var(--muted);
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 1rem 1rem 0;
}

/* 알림 구독 카드 */
.notify-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.notify-card p {
  font-size: 0.85rem;
  color: var(--muted);
  flex: 1;
  min-width: 160px;
}

#notify-status { display: block; font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }

.btn {
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  border: none;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s;
}

.btn-on  { background: var(--accent); color: #fff; }
.btn-on:hover { background: var(--accent-hover); }
.btn-off { background: var(--border); color: var(--muted); }
.btn-off:hover { background: var(--danger); color: #fff; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* 탭 */
.tabs {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.tab {
  flex: 1;
  padding: 0.6rem 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s;
}
.tab.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.tab:not(.active):hover { border-color: var(--accent); color: var(--accent); }

#refresh-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  padding: 0.3rem 0.75rem;
  border-radius: 6px;
  font-size: 0.8rem;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}
#refresh-btn:hover { border-color: var(--accent); color: var(--accent); }

#news-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.news-item a {
  display: flex;
  align-items: flex-start;
  gap: 0.875rem;
  padding: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.15s, background 0.15s;
}
.news-item a:hover {
  border-color: var(--accent);
  background: #1e293bcc;
}

.rank {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--rank-color);
  min-width: 1.75rem;
  text-align: center;
  line-height: 1.3;
}

.news-item:nth-child(1) .rank { color: #f59e0b; }
.news-item:nth-child(2) .rank { color: #94a3b8; }
.news-item:nth-child(3) .rank { color: #b45309; }

.content { flex: 1; min-width: 0; }

.title {
  font-size: 0.95rem;
  font-weight: 500;
  line-height: 1.5;
  margin-bottom: 0.35rem;
  word-break: keep-all;
  overflow-wrap: break-word;
}

.meta {
  font-size: 0.75rem;
  color: var(--muted);
}

.loading, .empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* PWA 설치 배너 */
#install-banner {
  display: none;
  position: fixed;
  bottom: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(59,130,246,0.4);
  white-space: nowrap;
  z-index: 100;
}
#install-banner.visible { display: block; }