:root {
  --bg: #0b0d10;
  --card: #12161c;
  --muted: #9aa4b2;
  --text: #e6edf3;
  --accent: #2f81f7;
  --ok: #3fb950;
  --danger: #f85149;
  --border: #283040;
  --shadow: 0 6px 24px rgba(0, 0, 0, .35);
  --radius: 14px;
}

* {
  box-sizing: border-box
}

html,
body {
  height: 100%
}

/* 스크롤바 숨기기 */
::-webkit-scrollbar {
  display: none;
}

body {
  margin: 0;
  background: var(--bg);
  font-family: -apple-system, BlinkMacSystemFont, Segoe UI, Roboto, Helvetica, Arial, Apple SD Gothic Neo, Malgun Gothic, "Noto Sans KR", sans-serif;
  color: var(--text);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -ms-overflow-style: none;
  /* IE and Edge */
  scrollbar-width: none;
  /* Firefox */
}

header {
  padding: 28px 24px 8px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  max-width: 1100px;
  margin: 0 auto;
}

header h1 {
  font-size: 28px;
  margin: 0;
  letter-spacing: .2px
}

main {
  padding: 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.grid {
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 16px
}

@media (max-width: 980px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .00)), var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 18px
}

.card .body {
  padding: 18px
}

.inputs {
  display: grid;
  gap: 8px;
}

.row {
  display: grid;
  grid-template-columns: 1fr 80px 36px;
  gap: 8px;
  align-items: center;
}

.row input[type="number"],
.row input[type="text"],
.target-input input {
  width: 100%;
  padding: 10px 12px;
  background: #0f131a;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 14px;
}

.row button {
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #0f131a;
  color: var(--muted);
  cursor: pointer;
}

.toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
  align-items: center;
}

.btn {
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0f131a;
  color: var(--text);
  cursor: pointer;
  font-weight: 600;
}

.btn.secondary {
  color: var(--muted)
}

.statgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 6px;
}

.statgrid.bottom {
  margin-top: 12px;
}

.stat {
  background: linear-gradient(180deg, rgba(47, 129, 247, .06), rgba(47, 129, 247, .00));
  border: 1px dashed var(--border);
  border-radius: 12px;
  padding: 14px 14px 12px;
}

.stat .label {
  color: var(--muted);
  font-size: 12px
}

.stat .value {
  font-size: 1.3rem;
  font-weight: 700;
  margin-top: 4px
}

.delta.up {
  color: var(--ok)
}

.delta.down {
  color: var(--danger)
}

@media (max-width: 720px) {
  .statgrid {
    grid-template-columns: 1fr 1fr
  }

  .statgrid.bottom {
    grid-template-columns: 1fr
  }

  .target-stats-grid {
    grid-template-columns: 1fr
  }

  .target-inputs {
    grid-template-columns: 1fr
  }

  .quick-buttons {
    flex-direction: column;
    gap: 2px;
  }

  .quick-btn {
    width: 100%;
    text-align: center;
    padding: 6px 8px;
  }

  .stat .value {
    font-size: 1.1rem
  }

  footer {
    display: flex;
    flex-direction: column;
    gap: 4px
  }
}

footer {
  opacity: .7;
  text-align: center;
  padding: 18px;
  font-size: 12px
}

.hint {
  color: var(--muted);
  font-size: 12px;
  margin-top: 6px
}

.ticker {
  font-variant-numeric: tabular-nums
}

.target-input {
  margin-bottom: 16px;
}

.target-input label {
  display: block;
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 6px;
}

.target-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
}

.quick-buttons {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.quick-btn {
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: #0f131a;
  color: var(--muted);
  cursor: pointer;
  font-size: 10px;
  transition: all 0.2s ease;
}

.quick-btn:hover {
  background: var(--accent);
  color: var(--text);
}

.quick-btn.active {
  background: var(--accent);
  color: var(--text);
}