:root {
  color-scheme: light dark;
  --bg: #f7f7f5;
  --fg: #1a1a1a;
  --card: #ffffff;
  --border: #e0e0dc;
  --accent: #d9480f;
  --muted: #6b6b6b;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161616;
    --fg: #eaeaea;
    --card: #212121;
    --border: #333;
    --muted: #9a9a9a;
  }
}

* { box-sizing: border-box; }

body {
  font-family: "Segoe UI", "Noto Sans Thai", sans-serif;
  background: var(--bg);
  color: var(--fg);
  margin: 0;
  padding: 0 1.5rem 3rem;
}

header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

h1 { font-size: 1.4rem; margin: 0; }
h2 { font-size: 1.05rem; color: var(--muted); margin-bottom: 0.75rem; }

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 0.55rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
}
button:hover { opacity: 0.9; }

section { margin-bottom: 2rem; }
section.tab-off { display: none; }

#tabNav {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0.6rem 0;
  margin: -1rem 0 1.25rem;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
#tabNav button {
  background: var(--card);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 0.45rem 0.9rem;
}
#tabNav button.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.9rem 1rem;
}
.card .label { font-size: 0.8rem; color: var(--muted); }
.card .value { font-size: 1.3rem; font-weight: 600; margin-top: 0.2rem; }
.card.mock { border-color: #d9a04077; }
.card.mock .badge { color: #d97706; font-size: 0.75rem; }
.card.live .badge { color: #16a34a; font-size: 0.75rem; }

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}
th, td {
  text-align: left;
  padding: 0.6rem 0.8rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.9rem;
}
th { color: var(--muted); font-weight: 500; }

#chatLog {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  min-height: 120px;
  max-height: 360px;
  overflow-y: auto;
  margin-bottom: 0.75rem;
  white-space: pre-wrap;
  font-size: 0.92rem;
}
.chat-msg { margin-bottom: 0.9rem; }
.chat-msg.user { color: var(--accent); font-weight: 600; }
.chat-msg.ai { color: var(--fg); }

.chat-input-row {
  display: flex;
  gap: 0.5rem;
}
#chatInput {
  flex: 1;
  padding: 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--fg);
  resize: vertical;
  min-height: 2.5rem;
  font-family: inherit;
}

select {
  padding: 0.3rem;
  border-radius: 4px;
}