@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/variable/pretendardvariable.min.css');

/* ───────────────────────────────── Variables */
:root {
  --primary:       #7580EA;
  --primary-light: #EEF0FD;
  --primary-dark:  #5A67D8;
  --bg:            #f6f7ff;
  --card:          #ffffff;
  --text:          #1a1a2e;
  --text-sub:      #6b7280;
  --border:        #e5e7f0;
  --radius:        12px;
  --header-h:      52px;
  --sidebar-w:     220px;
  --shadow:        0 2px 12px rgba(117,128,234,0.10);
}

[data-theme="dark"] {
  --bg:            #0f1117;
  --card:          #1a1d2e;
  --text:          #e8eaf6;
  --text-sub:      #9ca3af;
  --border:        #2a2d42;
  --primary-light: #1e2140;
}

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

body {
  font-family: 'Pretendard Variable', 'Pretendard', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

a { text-decoration: none; color: inherit; }

/* ───────────────────────────────── Header */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: rgba(255,255,255,0.90);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 200;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 12px;
}
[data-theme="dark"] .header { background: rgba(15,17,23,0.90); }

.sidebar-toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  cursor: pointer;
  padding: 6px;
  border: none;
  background: transparent;
  border-radius: 6px;
  transition: background 0.15s;
}
.sidebar-toggle:hover { background: var(--primary-light); }
.sidebar-toggle span { display: block; width: 18px; height: 2px; background: var(--text); border-radius: 2px; }

.logo { display: flex; align-items: center; gap: 6px; font-size: 16px; font-weight: 700; color: var(--primary); }
.logo-icon { font-size: 18px; }

.theme-btn {
  margin-left: auto;
  width: 34px; height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card);
  cursor: pointer;
  font-size: 16px;
  transition: all 0.15s;
}
.theme-btn:hover { border-color: var(--primary); }

/* ───────────────────────────────── Sidebar */
.sidebar {
  position: fixed;
  top: var(--header-h); left: 0;
  width: var(--sidebar-w);
  height: calc(100vh - var(--header-h));
  overflow-y: auto;
  background: var(--card);
  border-right: 1px solid var(--border);
  z-index: 150;
  padding: 12px 0 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease;
}

.sidebar-section-label {
  font-size: 10px; font-weight: 700;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 8px 20px 4px;
}

.sidebar-item {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 20px;
  font-size: 14px; font-weight: 500;
  color: var(--text-sub);
  border-left: 3px solid transparent;
  transition: background 0.12s, color 0.12s;
}
.sidebar-item:hover { background: var(--primary-light); color: var(--primary); }
.sidebar-item.active { background: var(--primary-light); color: var(--primary); font-weight: 600; border-left-color: var(--primary); }
.si-icon { font-size: 15px; flex-shrink: 0; }

.sidebar-divider { height: 1px; background: var(--border); margin: 8px 16px; }

.sidebar-footer { margin-top: auto; padding: 16px 20px 0; font-size: 11px; color: var(--text-sub); line-height: 1.8; }

.sidebar-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.40); z-index: 140; }
.sidebar-overlay.show { display: block; }

/* ───────────────────────────────── Main */
.main {
  margin-left: var(--sidebar-w);
  padding: calc(var(--header-h) + 32px) 28px 60px;
  max-width: calc(var(--sidebar-w) + 800px);
  min-height: 100vh;
}

/* ───────────────────────────────── Page header */
.page-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 24px; gap: 12px; }
.page-title  { font-size: 22px; font-weight: 700; line-height: 1.3; }
.page-meta   { font-size: 12px; color: var(--text-sub); }
.source-badge { display: inline-flex; align-items: center; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 600; background: var(--primary-light); color: var(--primary); white-space: nowrap; }

/* ───────────────────────────────── Keyword list */
.keyword-list { display: flex; flex-direction: column; gap: 6px; }

.keyword-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 14px 18px; display: flex; align-items: center; gap: 14px;
  cursor: pointer; transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.keyword-card:hover { border-color: var(--primary); box-shadow: var(--shadow); transform: translateY(-1px); }

.rank-badge {
  min-width: 36px; height: 36px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 700; flex-shrink: 0;
  background: var(--primary-light); color: var(--primary);
}
.rank-badge.r1 { background: #7580EA; color: #fff; font-size: 15px; }
.rank-badge.r2 { background: #9BA5F0; color: #fff; }
.rank-badge.r3 { background: #B8BEFF; color: #fff; }

.keyword-text  { font-size: 15px; font-weight: 500; flex: 1; }
.keyword-arrow { font-size: 13px; color: var(--text-sub); flex-shrink: 0; }

.top5-separator { text-align: center; color: var(--text-sub); font-size: 11px; font-weight: 600; padding: 4px 0; position: relative; }
.top5-separator::before, .top5-separator::after { content: ''; position: absolute; top: 50%; width: 42%; height: 1px; background: var(--border); }
.top5-separator::before { left: 0; }
.top5-separator::after  { right: 0; }

/* ───────────────────────────────── Stats */
.stats-list { display: flex; flex-direction: column; gap: 6px; }

.stats-card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 12px 18px; display: flex; align-items: center; gap: 14px; transition: border-color 0.15s;
}
.stats-card:hover { border-color: var(--primary); }

.stats-count { margin-left: auto; font-size: 12px; font-weight: 600; background: var(--primary-light); color: var(--primary); padding: 3px 10px; border-radius: 20px; white-space: nowrap; }

/* ───────────────────────────────── Chart */
.chart-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 20px; margin-bottom: 20px; height: 440px; }

/* ───────────────────────────────── Filter tabs */
.period-tabs { display: flex; gap: 6px; margin-bottom: 20px; flex-wrap: wrap; }

.period-tab { padding: 7px 16px; border-radius: 8px; font-size: 13px; font-weight: 500; color: var(--text-sub); border: 1px solid var(--border); background: var(--card); cursor: pointer; transition: all 0.15s; }
.period-tab:hover, .period-tab.active { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light); font-weight: 600; }

/* ───────────────────────────────── Word Cloud */
.cloud-wrap { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; margin-bottom: 20px; display: flex; justify-content: center; }
#wordCloudCanvas { max-width: 100%; }

/* ───────────────────────────────── Summary */
.summary-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 32px; }
.summary-col  { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.summary-col-header { padding: 12px 16px; background: var(--primary-light); font-size: 13px; font-weight: 700; color: var(--primary); border-bottom: 1px solid var(--border); margin: 0; line-height: 1.4; }
.summary-col-item { display: flex; align-items: center; gap: 10px; padding: 9px 16px; border-bottom: 1px solid var(--border); font-size: 13px; transition: background 0.12s; }
.summary-col-item:last-child { border-bottom: none; }
.summary-col-item:hover { background: var(--bg); }
.summary-rank { min-width: 22px; font-size: 12px; font-weight: 700; color: var(--text-sub); }
.summary-rank.top { color: var(--primary); }
.summary-kw  { flex: 1; font-weight: 500; }
.summary-cnt { font-size: 11px; color: var(--text-sub); white-space: nowrap; }

/* ───────────────────────────────── Compare */
.compare-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.compare-col  { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.compare-col-header { padding: 12px 16px; font-size: 13px; font-weight: 700; text-align: center; border-bottom: 1px solid var(--border); margin: 0; line-height: 1.4; }
.compare-col-header.google { background: #e8f0fe; color: #1a73e8; }
.compare-col-header.zum    { background: #e3f2fd; color: #1565c0; }
.compare-col-header.nate   { background: #fff3e0; color: #e65100; }
[data-theme="dark"] .compare-col-header.google { background: #1a2744; color: #7baaf7; }
[data-theme="dark"] .compare-col-header.zum    { background: #172033; color: #64b5f6; }
[data-theme="dark"] .compare-col-header.nate   { background: #2a1a00; color: #ffb74d; }
.compare-item { display: flex; align-items: center; gap: 10px; padding: 9px 14px; border-bottom: 1px solid var(--border); font-size: 13px; cursor: pointer; transition: background 0.12s; }
.compare-item:last-child { border-bottom: none; }
.compare-item:hover { background: var(--bg); }
.compare-rank { min-width: 20px; font-size: 12px; font-weight: 700; color: var(--text-sub); text-align: right; }
.compare-kw   { flex: 1; font-weight: 500; }

/* ───────────────────────────────── Empty */
.empty { text-align: center; padding: 60px 20px; color: var(--text-sub); }
.empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-text { font-size: 15px; }

/* ───────────────────────────────── Footer */
.footer { margin-left: var(--sidebar-w); text-align: center; padding: 20px 16px; font-size: 12px; color: var(--text-sub); border-top: 1px solid var(--border); line-height: 1.8; }
.footer-sub { margin-top: 2px; }

/* ───────────────────────────────── Breadcrumb */
.breadcrumb-nav {
  display: inline-flex;
  align-items: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  margin-bottom: 18px;
}

ol.breadcrumb, ul.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  list-style: none !important;
  padding: 0 !important;
  margin: 0;
  font-size: 12px;
  color: var(--text-sub);
  counter-reset: none;
}

ol.breadcrumb li,
ul.breadcrumb li,
.breadcrumb-item {
  display: flex;
  align-items: center;
  list-style: none !important;
  counter-increment: none;
}

ol.breadcrumb li::marker,
ul.breadcrumb li::marker,
.breadcrumb-item::marker { display: none; content: ''; }
.breadcrumb-item:not(:last-child)::after {
  content: '›';
  margin: 0 7px;
  color: var(--text-sub);
  font-size: 14px;
}
.breadcrumb-item a { color: var(--text-sub); transition: color 0.12s; }
.breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-item.current span { color: var(--text); font-weight: 500; }

/* ───────────────────────────────── Section headings */
.section-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--primary-light);
  display: flex;
  align-items: center;
  gap: 6px;
}
.section-title-sub {
  font-size: 12px;
  font-weight: 400;
  color: var(--text-sub);
}

/* ───────────────────────────────── Page description */
.page-subtitle {
  font-size: 13px;
  color: var(--text-sub);
  margin-top: 3px;
}
.page-desc {
  font-size: 13px;
  color: var(--text-sub);
  line-height: 1.6;
  margin-bottom: 16px;
}

/* ───────────────────────────────── Quick links */
.quick-links {
  margin-top: 28px;
  padding: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.quick-links-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-sub);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}
.quick-links-row { display: flex; flex-wrap: wrap; gap: 8px; }
.quick-link-btn {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-sub);
  border: 1px solid var(--border);
  background: var(--bg);
  transition: all 0.15s;
}
.quick-link-btn:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light); }

/* ───────────────────────────────── Common keyword chip */
.common-kw-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  padding: 6px 14px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  transition: background 0.12s;
}
.common-kw-chip:hover { background: var(--primary); color: #fff; }

/* ───────────────────────────────── Common section */
.common-section {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}

/* ───────────────────────────────── Daily nav */
.daily-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 32px;
  padding: 12px 0;
  border-top: 1px solid var(--border);
}
.daily-nav-btn {
  padding: 8px 16px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-sub);
  border: 1px solid var(--border);
  background: var(--card);
  transition: all 0.15s;
}
.daily-nav-btn:hover { background: var(--primary-light); color: var(--primary); border-color: var(--primary-light); }
.daily-nav-btn.center { margin: 0 auto; }
.daily-nav-btn.disabled { opacity: 0.35; cursor: default; pointer-events: none; }

/* ───────────────────────────────── Daily list grid */
.daily-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
}
.daily-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
}
.daily-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.daily-card-date {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.daily-card-label {
  font-size: 11px;
  color: var(--primary);
}

/* ───────────────────────────────── Footer links */
.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 4px;
  font-size: 12px;
  color: var(--text-sub);
  margin-bottom: 4px;
}
.footer-links a { color: var(--text-sub); }
.footer-links a:hover { color: var(--primary); }

/* ───────────────────────────────── Responsive */
@media (max-width: 860px) {
  .summary-grid, .compare-grid { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
  .sidebar { transform: translateX(-100%); z-index: 160; }
  .sidebar.open { transform: translateX(0); }
  .main   { margin-left: 0; padding: calc(var(--header-h) + 20px) 16px 48px; }
  .footer { margin-left: 0; }
  .page-title { font-size: 18px; }
  .chart-wrap { height: 340px; }
}

@media (min-width: 701px) {
  .sidebar-overlay { display: none !important; }
  .sidebar { transform: none !important; }
}