:root {
  --bg: #0f1115;
  --card: #171a21;
  --card-hover: #1d212b;
  --border: #262b35;
  --text: #e6e9ef;
  --sub: #8b92a3;
  --accent: #4f8cff;
  --up: #ff5c5c;
  --down: #3d8bff;
  --radius: 10px;
}

* { box-sizing: border-box; }

.hidden { display: none !important; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Pretendard", sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

/* Ticker tape */
.ticker-tape-wrapper {
  background: #000;
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  white-space: nowrap;
}
.ticker-tape {
  display: inline-flex;
  gap: 28px;
  padding: 8px 0;
  animation: ticker-scroll 40s linear infinite;
}
.ticker-tape:hover { animation-play-state: paused; }
@keyframes ticker-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.ticker-item { font-size: 12.5px; display: inline-flex; gap: 6px; padding: 0 14px; white-space: nowrap; }
.ticker-item .t-name { color: var(--sub); }
.ticker-item .t-price { font-weight: 600; }

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
}
.brand { font-size: 18px; font-weight: 700; }
.header-right { display: flex; align-items: center; gap: 16px; font-size: 12.5px; color: var(--sub); }
.live-badge { display: flex; align-items: center; gap: 6px; color: var(--up); font-weight: 600; }
.live-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--up);
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

.overview-main { max-width: 1200px; margin: 0 auto; padding: 24px 24px 60px; }
.overview-intro h1 { font-size: 22px; margin: 0 0 6px; }
.overview-intro p { color: var(--sub); font-size: 13.5px; margin: 0 0 24px; }

.overview-section { margin-bottom: 34px; }
.overview-section-title {
  font-size: 16px;
  margin: 0 0 12px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.overview-section-caption { font-size: 12px; color: var(--sub); font-weight: 400; }

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: 10px;
}

.overview-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
}
.overview-card.is-loading { color: var(--sub); font-size: 13px; text-align: center; padding: 20px 0; }
.overview-card .card-name { font-size: 13px; color: var(--sub); margin-bottom: 4px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.overview-card .card-price { font-size: 16px; font-weight: 700; }
.overview-card .card-change { font-size: 12.5px; font-weight: 600; margin-top: 2px; }
.up { color: var(--up); }
.down { color: var(--down); }
.flat { color: var(--sub); }

.board-footer { margin-top: 30px; border-top: 1px solid var(--border); padding-top: 16px; }
.board-footer p { color: var(--sub); font-size: 11.5px; margin: 0; line-height: 1.6; }

.overview-card { cursor: pointer; transition: background 0.15s; }
.overview-card:not(.is-loading):hover { background: var(--card-hover); }

/* Quick-preview modal (price + AI probability), before jumping to the full chart page */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 100;
}
.preview-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: 380px;
  width: 100%;
  padding: 24px;
  position: relative;
}
.close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  background: transparent;
  border: none;
  color: var(--sub);
  font-size: 18px;
  cursor: pointer;
}
.preview-symbol { font-size: 13px; color: var(--sub); }
.preview-name { font-size: 20px; font-weight: 700; margin: 2px 0 12px; }
.preview-price { font-size: 26px; font-weight: 700; }
.preview-change { font-size: 14px; font-weight: 600; margin-bottom: 16px; }

.preview-ai { border-top: 1px solid var(--border); padding-top: 14px; }
.preview-ai-label { font-size: 12px; color: var(--sub); margin-bottom: 6px; }
.preview-ai-direction { font-size: 19px; font-weight: 700; margin-bottom: 4px; }
.preview-ai-sub { font-size: 12px; color: var(--sub); }
.preview-ai-loading { color: var(--sub); font-size: 13px; padding: 8px 0; }

.preview-chart-btn {
  width: 100%;
  margin-top: 18px;
  padding: 11px 0;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}