:root {
  color-scheme: dark;
  --bg: #07100e;
  --panel: #0d1916;
  --panel-2: #12211d;
  --line: rgba(173, 255, 220, 0.12);
  --text: #effbf5;
  --muted: #8ca69a;
  --mint: #66f2b2;
  --mint-dark: #143f30;
  --warn: #ffca73;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 86% -10%, rgba(44, 183, 124, .18), transparent 35%),
    radial-gradient(circle at 0% 60%, rgba(31, 103, 81, .12), transparent 31%),
    var(--bg);
  font-family: Inter, Pretendard, "Noto Sans KR", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.shell { width: min(1160px, calc(100% - 40px)); margin: 0 auto; padding: 58px 0 32px; }
.header, .section-heading, .total-panel, footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; }
.eyebrow, .label { color: var(--mint); font-size: 11px; font-weight: 800; letter-spacing: .18em; }
.pulse { display: inline-block; width: 7px; height: 7px; margin-right: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 14px var(--mint); }
h1 { margin: 10px 0 8px; font-size: clamp(34px, 5vw, 57px); letter-spacing: -.055em; line-height: 1; }
h2 { margin: 7px 0 0; font-size: 24px; letter-spacing: -.035em; }
h3 { margin: 0 0 24px; font-size: 16px; }
.count-pill { margin-left: 7px; padding: 4px 7px; border-radius: 99px; background: var(--mint-dark); color: var(--mint); font-size: 10px; font-weight: 750; }
.subtitle, .card-note, footer { color: var(--muted); }
.subtitle { margin: 0; font-size: 14px; }
.refresh { border: 1px solid rgba(102, 242, 178, .35); background: var(--mint-dark); color: var(--mint); padding: 12px 17px; border-radius: 10px; font-weight: 700; cursor: pointer; }
.refresh:hover { border-color: var(--mint); }
.refresh:disabled { opacity: .55; cursor: wait; }
.period-toolbar {
  display: flex;
  align-items: end;
  gap: 12px;
  margin-top: 26px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: rgba(255,255,255,.025);
}
.period-control { display: grid; gap: 7px; }
.period-control label { color: var(--muted); font-size: 11px; font-weight: 700; }
.period-control select, .period-control input {
  min-height: 40px;
  border: 1px solid rgba(173, 255, 220, .2);
  border-radius: 9px;
  background: var(--panel);
  color: var(--text);
  padding: 8px 11px;
  font: inherit;
}
.period-control select { min-width: 142px; }
.period-control input { color-scheme: dark; }
.custom-range { display: flex; align-items: end; gap: 10px; }
.range-separator { padding-bottom: 11px; color: var(--muted); }
.apply-period {
  min-height: 40px;
  border: 0;
  border-radius: 9px;
  padding: 9px 16px;
  background: var(--mint);
  color: #062319;
  font-weight: 800;
  cursor: pointer;
}
.apply-period:disabled { opacity: .55; cursor: wait; }
.selected-period { margin-left: auto; padding-bottom: 10px; color: var(--muted); font-size: 12px; }
.section { margin-top: 58px; }
.section-heading { margin-bottom: 18px; align-items: end; }
.resource-pill, .period { padding: 8px 11px; border: 1px solid var(--line); background: rgba(255,255,255,.025); border-radius: 8px; color: var(--muted); font: 12px ui-monospace, SFMono-Regular, Menlo, monospace; }
.metric-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.freshness-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 14px; }
.freshness-card { display: flex; justify-content: space-between; gap: 20px; padding: 14px 18px; border: 1px solid var(--line); border-radius: 12px; background: rgba(255,255,255,.025); color: var(--muted); font-size: 12px; }
.freshness-card b { color: var(--text); font-weight: 650; }
.card, .total-panel { border: 1px solid var(--line); background: linear-gradient(145deg, rgba(18,33,29,.94), rgba(10,21,18,.96)); border-radius: 16px; }
.card { padding: 24px; }
.hero-card { background: linear-gradient(145deg, rgba(26, 70, 53, .7), rgba(11, 27, 22, .98)); }
.estimate-card { background: linear-gradient(145deg, rgba(26, 58, 70, .72), rgba(11, 25, 29, .98)); }
.card-label { display: block; color: var(--muted); font-size: 12px; font-weight: 650; }
.big-number, .number, .total-number { display: block; font-variant-numeric: tabular-nums; letter-spacing: -.045em; }
.big-number { margin: 24px 0 8px; font-size: 40px; color: var(--mint); }
.number { margin: 24px 0 20px; font-size: 34px; }
.accent-number { color: #91dfff; }
.estimate-detail { display: flex; justify-content: space-between; gap: 12px; margin: -4px 0 12px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.estimate-detail b { color: var(--text); font-weight: 650; }
.split { display: flex; gap: 16px; padding-top: 15px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.split b { color: var(--text); margin-left: 5px; }
.total-panel { padding: 26px 28px; }
.total-number { margin-top: 10px; font-size: 42px; color: var(--mint); }
.timestamp { text-align: right; color: var(--muted); font-size: 11px; }
.timestamp span, .timestamp b { display: block; }
.timestamp b { margin-top: 6px; color: var(--text); font-weight: 600; }
.timestamp small { display: block; margin-top: 5px; color: var(--muted); }
.projected-total { padding-left: 28px; border-left: 1px solid var(--line); }
.projected-total strong { display: block; margin-top: 9px; color: #91dfff; font-size: 24px; font-variant-numeric: tabular-nums; }
.ranking-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 14px; }
.ranking-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 14px; align-items: center; margin-top: 17px; }
.ranking-info { min-width: 0; }
.ranking-name { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.bar { height: 4px; margin-top: 8px; overflow: hidden; background: rgba(255,255,255,.05); border-radius: 99px; }
.bar > i { display: block; height: 100%; background: linear-gradient(90deg, #2b9068, var(--mint)); border-radius: inherit; }
.ranking-cost { font-size: 12px; font-variant-numeric: tabular-nums; color: #cde3d8; }
.empty { color: var(--muted); font-size: 13px; line-height: 1.6; }
.banner { margin-top: 26px; padding: 13px 16px; border: 1px solid rgba(255,202,115,.24); border-radius: 10px; background: rgba(255,202,115,.07); color: var(--warn); font-size: 13px; line-height: 1.5; }
.hidden { display: none; }
.skeleton { height: 160px; background: linear-gradient(90deg, transparent, rgba(255,255,255,.035), transparent); animation: shimmer 1.3s infinite; }
footer { margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--line); font-size: 11px; }
@keyframes shimmer { from { transform: translateX(-30%); } to { transform: translateX(30%); } }
@media (max-width: 780px) {
  .shell { width: min(100% - 24px, 1160px); padding-top: 30px; }
  .header { align-items: flex-start; }
  .period-toolbar, .custom-range { align-items: stretch; flex-direction: column; }
  .period-control select, .period-control input, .apply-period { width: 100%; }
  .range-separator { display: none; }
  .selected-period { margin-left: 0; padding-bottom: 0; }
  .metric-grid, .ranking-grid, .freshness-grid { grid-template-columns: 1fr; }
  .section-heading { align-items: flex-start; flex-direction: column; gap: 10px; }
  .total-panel, footer { align-items: flex-start; flex-direction: column; }
  .timestamp { text-align: left; }
  .projected-total { padding-left: 0; border-left: 0; }
}
@media (min-width: 781px) and (max-width: 1060px) {
  .metric-grid { grid-template-columns: repeat(2, 1fr); }
}