/* frontend/css/style.css */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0f1117;
  --bg2: #1a1d27;
  --bg3: #22263a;
  --border: rgba(255,255,255,0.08);
  --text: #e8eaf0;
  --text2: #8b90a8;
  --text3: #555b74;
  --green: #22c55e;
  --red: #ef4444;
  --amber: #f59e0b;
  --blue: #3b82f6;
  --purple: #8b5cf6;
  --radius: 10px;
  --font: 'Inter', 'Noto Sans KR', system-ui, sans-serif;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
}

/* ── 레이아웃 ── */
.app { display: flex; flex-direction: column; min-height: 100vh; }

header {
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; }
.logo-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); animation: blink 1.5s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.2} }

.header-right { display: flex; align-items: center; gap: 12px; }
.update-badge {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 12px;
  color: var(--text2);
}

main { padding: 24px; max-width: 1200px; margin: 0 auto; width: 100%; }

/* ── 메트릭 카드 ── */
.metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 24px; }
.metric-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.metric-label { font-size: 11px; color: var(--text2); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 6px; }
.metric-val { font-size: 26px; font-weight: 600; }
.metric-val.green { color: var(--green); }
.metric-val.amber { color: var(--amber); }
.metric-sub { font-size: 11px; color: var(--text3); margin-top: 4px; }

/* ── 컨트롤 바 ── */
.controls {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.control-group { display: flex; align-items: center; gap: 8px; }
.control-group label { font-size: 12px; color: var(--text2); white-space: nowrap; }
select, input {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 5px 10px;
  font-size: 13px;
  outline: none;
  cursor: pointer;
}
select:hover, input:hover { border-color: rgba(255,255,255,0.2); }

.btn {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  padding: 6px 14px;
  font-size: 13px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: background 0.15s;
}
.btn:hover { background: rgba(255,255,255,0.1); }
.btn.primary { background: var(--blue); border-color: var(--blue); color: #fff; }
.btn.primary:hover { background: #2563eb; }

.auto-badge {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text2);
}
.toggle { position: relative; width: 36px; height: 20px; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: var(--bg3);
  border-radius: 20px;
  cursor: pointer;
  transition: background 0.2s;
  border: 1px solid var(--border);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 14px; height: 14px;
  background: var(--text2);
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: transform 0.2s, background 0.2s;
}
.toggle input:checked + .toggle-slider { background: var(--green); border-color: var(--green); }
.toggle input:checked + .toggle-slider::before { transform: translateX(16px); background: #fff; }

/* ── 탭 ── */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; }
.tab {
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text2);
  background: transparent;
  border: none;
  transition: all 0.15s;
}
.tab:hover { color: var(--text); background: var(--bg2); }
.tab.active { background: var(--bg2); color: var(--text); border: 1px solid var(--border); }

/* ── 테이블 ── */
.table-wrap {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
table { width: 100%; border-collapse: collapse; }
thead th {
  background: var(--bg3);
  color: var(--text2);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 10px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
tbody td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: rgba(255,255,255,0.03); }

.path-text { font-family: monospace; font-size: 12px; color: var(--text2); }
.val-pos { color: var(--green); font-weight: 600; }
.val-neg { color: var(--text3); }
.val-warn { color: var(--amber); font-weight: 600; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 500;
}
.badge-hot  { background: rgba(245,158,11,0.15); color: var(--amber); border: 1px solid rgba(245,158,11,0.3); }
.badge-ok   { background: rgba(34,197,94,0.12);  color: var(--green);  border: 1px solid rgba(34,197,94,0.3); }
.badge-miss { background: var(--bg3); color: var(--text3); border: 1px solid var(--border); }

.calc-btn {
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text2);
  padding: 3px 10px;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.15s;
}
.calc-btn:hover { border-color: var(--blue); color: var(--blue); }

/* ── 차트 영역 ── */
.chart-section {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
}
.chart-title { font-size: 13px; font-weight: 500; color: var(--text2); margin-bottom: 16px; }
.chart-canvas-wrap { position: relative; height: 200px; }

/* ── 모달 ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  z-index: 200;
  align-items: center;
  justify-content: center;
}
.modal-overlay.show { display: flex; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px;
  width: 460px;
  max-width: 90vw;
}
.modal h3 { font-size: 16px; font-weight: 600; margin-bottom: 20px; }
.modal-row { display: flex; justify-content: space-between; padding: 9px 0; border-bottom: 1px solid var(--border); font-size: 13px; }
.modal-row:last-of-type { border-bottom: none; }
.modal-row span:last-child { font-weight: 600; }
.modal-result { background: var(--bg3); border-radius: 8px; padding: 14px; margin-top: 16px; text-align: center; }
.modal-result .big { font-size: 28px; font-weight: 700; color: var(--green); }
.modal-close { margin-top: 16px; width: 100%; }

/* ── 빈 상태 ── */
.empty { text-align: center; padding: 3rem; color: var(--text3); }
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--blue);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
  vertical-align: middle;
  margin-right: 6px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── 반응형 ── */
@media (max-width: 768px) {
  .metrics { grid-template-columns: repeat(2, 1fr); }
  main { padding: 14px; }
  .controls { gap: 12px; }
}