/* ── Base ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root {
  --bg: #F7F4EF;
  --bg-alt: #EDE8E0;
  --text: #1A1A1A;
  --text-muted: #6B6560;
  --accent: #C2703E;
  --accent-light: #E8A87C;
  --card-bg: #FFFFFF;
  --card-border: #E5E0D8;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.06);
  --campaign: #7C8C6E;
  --quiet: #C4BAA9;
  --font: 'Inter', -apple-system, sans-serif;
  --radius: 8px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ── Gate ── */
.gate {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.gate-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 48px 40px;
  text-align: center;
  max-width: 360px;
  width: 100%;
  box-shadow: var(--card-shadow);
}
.gate-card h1 { font-size: 1.5rem; font-weight: 600; margin-bottom: 4px; }
.gate-card p { color: var(--text-muted); font-size: 0.875rem; margin-bottom: 24px; }
.gate-card input {
  width: 100%; padding: 10px 14px;
  border: 1px solid var(--card-border); border-radius: 6px;
  font-size: 0.9375rem; font-family: var(--font);
  margin-bottom: 12px; outline: none; transition: border-color 0.15s;
}
.gate-card input:focus { border-color: var(--accent); }
.gate-card button {
  width: 100%; padding: 10px;
  background: var(--accent); color: #fff; border: none; border-radius: 6px;
  font-size: 0.9375rem; font-weight: 500; font-family: var(--font);
  cursor: pointer; transition: background 0.15s;
}
.gate-card button:hover { background: #A85E32; }
.gate-error { color: #B44; font-size: 0.8125rem; margin-top: 8px; min-height: 1.2em; }

/* ── Layout ── */
.container { max-width: 960px; margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.header { padding: 48px 0 32px; border-bottom: 1px solid var(--card-border); }
.header h1 { font-size: 2rem; font-weight: 700; letter-spacing: -0.02em; }
.subtitle { color: var(--text-muted); font-size: 1rem; margin-top: 4px; }

/* ── Sections ── */
.section { padding: 48px 0; }
.section.alt-bg { background: var(--bg-alt); }
.section h2 { font-size: 1.375rem; font-weight: 600; margin-bottom: 6px; letter-spacing: -0.01em; }
.section-desc { color: var(--text-muted); font-size: 0.9375rem; margin-bottom: 28px; max-width: 640px; }

/* ── Stats Row ── */
.stats-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.stat-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 24px 20px; text-align: center;
  box-shadow: var(--card-shadow);
}
.stat-card.accent { border-color: var(--accent); border-width: 2px; }
.stat-card.highlight .stat-value { color: var(--accent); }
.stat-value { font-size: 1.75rem; font-weight: 700; letter-spacing: -0.02em; }
.stat-label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 4px; }

/* ── Comparison ── */
.comparison-block {
  display: flex; align-items: center; justify-content: center; gap: 24px;
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 28px 32px; box-shadow: var(--card-shadow);
}
.comparison-item { text-align: center; flex: 1; }
.comparison-value { font-size: 1.5rem; font-weight: 700; }
.campaign-side .comparison-value { color: var(--campaign); }
.quiet-side .comparison-value { color: var(--quiet); }
.comparison-label { font-size: 0.8125rem; color: var(--text-muted); margin-top: 2px; }
.comparison-vs { font-size: 0.875rem; font-weight: 600; color: var(--text-muted); }

/* ── Charts ── */
.chart-wrap {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 20px;
  box-shadow: var(--card-shadow); margin-bottom: 24px;
}

/* ── Period Timeline ── */
.period-timeline {
  display: flex;
  align-items: flex-end;
  gap: 1px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 12px 8px;
  box-shadow: var(--card-shadow);
  margin-bottom: 8px;
}
.pt-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 0;
  cursor: default;
}
.pt-bar-area {
  width: 100%;
  height: 160px;
  display: flex;
  align-items: flex-end;
  padding: 0 1px;
}
.pt-bar {
  width: 100%;
  border-radius: 2px 2px 0 0;
  min-height: 1px;
}
.pt-campaign .pt-bar { background: var(--campaign); }
.pt-organic .pt-bar { background: #D4A76A; }
.pt-quiet .pt-bar { background: #E8E4DD; }

.pt-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 6px;
  gap: 1px;
  width: 100%;
  overflow: hidden;
}
.pt-name {
  font-size: 0.625rem;
  font-weight: 600;
  text-align: center;
  line-height: 1.15;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  white-space: normal;
  word-break: break-word;
}
.pt-campaign .pt-name { color: #4A5F3D; }
.pt-organic .pt-name { color: #8B7040; }

.pt-avg {
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
}
.pt-avg small { font-weight: 400; font-size: 0.625rem; opacity: 0.6; }
.pt-campaign .pt-avg { color: var(--accent); }
.pt-organic .pt-avg { color: #B8904E; }

.pt-days {
  font-size: 0.5625rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.pt-quiet-label {
  font-size: 0.5rem;
  color: var(--text-muted);
  opacity: 0.5;
  padding-top: 2px;
}

.pt-block:hover { opacity: 0.85; }

/* ── Oct Insight Box ── */
.oct-insight {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  margin-bottom: 12px;
  box-shadow: var(--card-shadow);
}
.oct-insight strong {
  display: block;
  font-size: 0.875rem;
  margin-bottom: 12px;
}
.oct-compare {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.oct-stat {
  text-align: center;
  padding: 12px 20px;
  border-radius: 6px;
  flex: 1;
  min-width: 140px;
}
.oct-stat.organic { background: rgba(212,167,106,0.1); }
.oct-stat.campaign { background: rgba(124,140,110,0.1); }
.oct-stat-label { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 2px; }
.oct-stat-value { font-size: 1.125rem; font-weight: 700; }
.oct-stat.organic .oct-stat-value { color: #B8904E; }
.oct-stat.campaign .oct-stat-value { color: var(--accent); }
.oct-ratio {
  text-align: center;
  flex: 0;
  white-space: nowrap;
}
.oct-ratio-num { font-size: 1.5rem; font-weight: 700; color: var(--accent); }
.oct-ratio-label { font-size: 0.6875rem; color: var(--text-muted); }

.pt-legend {
  display: flex;
  gap: 16px;
  justify-content: center;
  padding: 8px 0 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.pt-leg-item { display: flex; align-items: center; gap: 5px; }
.pt-leg-dot { width: 10px; height: 10px; border-radius: 2px; }

/* ── Campaign Grid ── */
.campaign-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 16px;
}
.campaign-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--radius); padding: 20px; box-shadow: var(--card-shadow);
}
.campaign-card-header { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 4px; }
.campaign-card-name { font-weight: 600; font-size: 0.9375rem; }
.campaign-card-total { font-weight: 600; font-size: 0.9375rem; color: var(--accent); }
.campaign-card-meta { font-size: 0.75rem; color: var(--text-muted); margin-bottom: 12px; }

/* ── Tables ── */
.period-table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 0.8125rem; }
.data-table th {
  text-align: left; font-weight: 600; padding: 10px 12px;
  border-bottom: 2px solid var(--card-border); white-space: nowrap;
}
.data-table th.num, .data-table td.num { text-align: right; }
.data-table td { padding: 8px 12px; border-bottom: 1px solid var(--card-border); }
.data-table tr.row-campaign td { background: rgba(124,140,110,0.06); }
.data-table tr.row-quiet td { background: rgba(196,186,169,0.06); }
.data-table tr.row-quiet td:first-child { color: var(--text-muted); font-style: italic; }
.data-table tr.row-organic td { background: rgba(212,167,106,0.08); }
.data-table tr.row-organic td:first-child { color: #B8904E; }
.data-table .avg-cell { font-weight: 700; font-size: 0.875rem; }
.data-table .avg-high { color: var(--accent); background: rgba(194,112,62,0.08) !important; }
.data-table .avg-mid { color: var(--campaign); }
.data-table .avg-low { color: var(--text-muted); font-weight: 400; }

/* ── Footer ── */
.footer {
  padding: 24px 0; border-top: 1px solid var(--card-border);
  text-align: center; font-size: 0.75rem; color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 640px) {
  .stats-row { grid-template-columns: 1fr; }
  .comparison-block { flex-direction: column; gap: 12px; }
  .header h1 { font-size: 1.5rem; }
  .stat-value { font-size: 1.375rem; }
  .campaign-grid { grid-template-columns: 1fr; }
}