:root {
  --bg: #f4f6f8; --card: #fff; --text: #1a2330; --muted: #66727f;
  --line: #e3e8ee; --accent: #2563eb; --green: #16a34a; --red: #dc2626;
  --amber: #d97706;
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #10151c; --card: #171e27; --text: #e6ebf1; --muted: #8b98a5;
          --line: #263241; --accent: #4f8cff; }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif;
       background: var(--bg); color: var(--text); }
header { padding: 14px 20px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
         border-bottom: 1px solid var(--line); background: var(--card); }
h1 { font-size: 19px; margin: 0; }
h2 { font-size: 15px; margin: 0 0 10px; }
main { max-width: 1080px; margin: 0 auto; padding: 16px; display: grid; gap: 14px; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; }
.warn-card { border-color: var(--amber); color: var(--amber); font-weight: 600; }
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px;
         font-weight: 700; margin-right: 6px; }
.badge.green { background: color-mix(in srgb, var(--green) 15%, transparent); color: var(--green); }
.badge.red { background: color-mix(in srgb, var(--red) 15%, transparent); color: var(--red); }
.badge.amber { background: color-mix(in srgb, var(--amber) 18%, transparent); color: var(--amber); }
.controls { margin-left: auto; display: flex; gap: 8px; flex-wrap: wrap; }
button { border: 1px solid var(--line); background: var(--card); color: var(--text);
         padding: 7px 12px; border-radius: 8px; cursor: pointer; font-size: 13px; }
button:hover { border-color: var(--accent); color: var(--accent); }
button.warn:hover { border-color: var(--amber); color: var(--amber); }
button.ok:hover { border-color: var(--green); color: var(--green); }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--line); white-space: nowrap; }
th { color: var(--muted); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.pos { color: var(--green); } .neg { color: var(--red); }
.muted { color: var(--muted); }
form { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; margin-bottom: 10px; }
input { padding: 7px 9px; border: 1px solid var(--line); border-radius: 8px;
        background: var(--bg); color: var(--text); font-size: 13px; }
label { font-size: 13px; color: var(--muted); }
pre { max-height: 320px; overflow: auto; font-size: 12px; margin: 0; white-space: pre-wrap; }
.tstate { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
          gap: 8px; margin: 8px 0; }
.tstate div { background: var(--bg); border-radius: 8px; padding: 8px 10px; font-size: 13px; }
.tstate b { display: block; font-size: 15px; margin-top: 2px; }
.tstate span { color: var(--muted); font-size: 11px; }
.ticker-head { display: flex; align-items: baseline; gap: 10px; margin-top: 6px; }
.ticker-head h3 { margin: 0; font-size: 16px; }
.tabs { display: flex; gap: 4px; }
.tab { border: none; background: transparent; padding: 8px 14px; font-size: 14px;
       border-bottom: 2px solid transparent; border-radius: 0; }
.tab.active { border-bottom-color: var(--accent); color: var(--accent); font-weight: 700; }
.row-between { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px; }
.row-end { display: flex; justify-content: flex-end; margin-top: 10px; }
button.big { padding: 10px 18px; font-size: 14px; font-weight: 700; }
button.attention { border-color: var(--amber); color: var(--amber); animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { opacity: .55; } }
.period-bar { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; margin-bottom: 12px; }
.period-bar button.active { border-color: var(--accent); color: var(--accent); font-weight: 700; }
.chart { display: flex; gap: 10px; align-items: flex-end; height: 180px; padding: 8px 4px 0; }
.bar-col { display: flex; flex-direction: column; align-items: center; justify-content: flex-end;
           height: 100%; min-width: 48px; }
.bar { width: 34px; border-radius: 4px 4px 0 0; }
.bar-up { background: var(--green); }
.bar-down { background: var(--red); }
.bar-val { font-size: 11px; margin-bottom: 3px; }
.bar-label { font-size: 11px; color: var(--muted); margin-top: 4px; }

/* ── 휴대폰 ───────────────────────────────────────────── */
@media (max-width: 640px) {
  header { padding: 10px 12px; gap: 8px; }
  h1 { font-size: 16px; width: 100%; }
  .tabs { width: 100%; }
  .tab { flex: 1; padding: 9px 4px; font-size: 13px; }
  #envBadges { width: 100%; display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
  main { padding: 10px; gap: 10px; }
  .card { padding: 12px; border-radius: 8px; }
  .controls { width: 100%; }
  .tstate { grid-template-columns: repeat(2, 1fr); }
  /* 표는 가로 스크롤 — 화면 밖으로 밀리지 않게 */
  .table-wrap { -webkit-overflow-scrolling: touch; }
  th, td { padding: 8px 6px; font-size: 12px; }
  /* 터치 대상 최소 크기 + iOS 자동확대 방지(16px) */
  input, button { font-size: 16px; min-height: 40px; }
  .period-bar { gap: 5px; }
  .period-bar button { flex: 1 0 30%; }
  .row-between, .row-end { width: 100%; }
  .row-between button, .row-end button { width: 100%; }
  form { flex-direction: column; align-items: stretch; }
  .chart { height: 150px; overflow-x: auto; }
}