:root {
  --primary: #2596be;
  --primary-dark: #1d7a9c;
  --secondary: #e1e1e1;
  --bg: #16181c;
  --bg-2: #1c1f24;
  --panel: #202329;
  --panel-2: #262a31;
  --border: #2f343c;
  --text: #e1e1e1;
  --muted: #8a9098;
  --warn: #e0a23c;
  --radius: 10px;
  --wrap: 1080px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-size: 15px;
  /* sticky footer: column layout fills the viewport, main grows */
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 18px; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 .5rem; }
h1 { font-size: 1.7rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: .95rem; color: var(--secondary); margin-top: 1rem; }

.muted { color: var(--muted); }
.small { font-size: .85rem; }
.strong { font-weight: 700; }

/* header */
.site-header {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-inner { display: flex; align-items: center; gap: 18px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; color: var(--text); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-logo {
  height: 44px;
  width: 44px;
  object-fit: contain;
  display: block;
}
.brand-name { font-size: 1.05rem; }
.main-nav { display: flex; gap: 16px; margin-left: 8px; }
.main-nav a { color: var(--secondary); font-weight: 600; }
.search { margin-left: auto; display: flex; gap: 6px; }
.search input {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 6px;
  padding: 7px 10px;
  width: 180px;
}
.search input:focus { outline: none; border-color: var(--primary); }
.search button, .btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 8px 14px;
  font-weight: 600;
  cursor: pointer;
}
.search button:hover, .btn:hover { background: var(--primary-dark); text-decoration: none; }
.btn { display: inline-block; }
.btn-ghost {
  background: transparent;
  color: var(--secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--panel-2); }
.btn.disabled { opacity: .4; pointer-events: none; }

main { flex: 1 0 auto; }
/* needs to beat .wrap's padding shorthand, hence main.wrap */
main.wrap { padding: 40px 18px 60px; }

/* hero */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: center;
  background: linear-gradient(180deg, var(--bg-2), var(--panel));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 34px;
  margin-bottom: 26px;
}
.hero h1 { font-size: 2.2rem; }
.hero-text p { color: var(--secondary); max-width: 44ch; }
.hero-search { display: flex; gap: 8px; margin: 18px 0 14px; }
.hero-search input {
  flex: 1;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 11px 13px;
}
.hero-search input:focus { outline: none; border-color: var(--primary); }
.hero-search button {
  flex-shrink: 0;
  white-space: nowrap;
  padding: 11px 18px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
}
.hero-search button:hover { background: var(--primary-dark); }
.hero-links { display: flex; gap: 10px; }
.hero-stats { display: grid; gap: 14px; }
.stat-card {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  padding: 16px 18px;
}
.stat-num { display: block; font-size: 1.9rem; font-weight: 800; color: #fff; }
.stat-label { color: var(--muted); font-size: .85rem; }

/* panels + grids */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 18px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }

.page-head { margin-bottom: 18px; }

/* lists */
.user-list, .feed { list-style: none; margin: 0; padding: 0; }
.user-list li, .feed li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.user-list li:last-child, .feed li:last-child { border-bottom: none; }
.feed li span:nth-child(3) { color: var(--secondary); }
.feed .muted, .user-list .muted { margin-left: auto; font-size: .85rem; }
.rank { color: var(--muted); width: 28px; font-weight: 700; }
.head { border-radius: 4px; background: var(--panel-2); }
.head-lg { border-radius: 8px; background: var(--panel-2); }
.uname { font-weight: 600; }

/* tables */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
}
.data-table th { color: var(--muted); font-weight: 600; font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; }
.data-table td.num, .data-table th.num { text-align: right; }
.data-table tbody tr:hover { background: var(--panel-2); }
.cell-user { display: flex; align-items: center; gap: 9px; }
.tag {
  background: rgba(224, 162, 60, .15);
  color: var(--warn);
  font-size: .72rem;
  padding: 1px 6px;
  border-radius: 4px;
}

/* pager + chips */
.pager { display: flex; align-items: center; gap: 14px; margin-top: 18px; }
.pager-info { color: var(--muted); }
.chip-nav { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.chip {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--secondary);
  padding: 6px 12px;
  border-radius: 20px;
  font-weight: 600;
  font-size: .9rem;
}
.chip:hover { text-decoration: none; border-color: var(--primary); }
.chip.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* profile */
.profile-head { display: flex; gap: 18px; align-items: center; margin-bottom: 16px; }
.profile-id h1 { margin-bottom: 2px; }
.warn { color: var(--warn); margin: 2px 0; font-weight: 600; }
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 10px;
}
.tabs a {
  color: var(--secondary);
  padding: 6px 12px;
  border-radius: 6px;
  font-weight: 600;
  font-size: .9rem;
}
.tabs a:hover { background: var(--panel-2); text-decoration: none; }
.tabs a.active { background: var(--primary); color: #fff; }
.tabs a.active:hover { background: var(--primary-dark); }
.tabs .tab-ext { margin-left: auto; color: var(--muted); }

/* once profile.js takes over, show only the active panel; without JS the page
   falls back to the full scrolling layout */
.profile.js-tabs .tab-panel { display: none; }
.profile.js-tabs .tab-panel.active { display: block; }

.metrics { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 12px; }
.metric {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
}
.m-num { display: block; font-size: 1.25rem; font-weight: 700; color: #fff; }
.m-label { color: var(--muted); font-size: .8rem; }
.trend { font-size: .85rem; font-weight: 700; }
.trend.up { color: #4caf50; }
.trend.down { color: #e0573c; }

.chart-box { margin-top: 8px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 12px; }
.chart { display: block; width: 100%; height: auto; }
.chart .bar { transition: opacity .1s; }
.chart .bar:hover { opacity: .8; }
.chart .bar, .chart .hit { cursor: crosshair; }

/* hover read-out box for the charts, positioned by profile.js */
.chart-tip {
  position: fixed;
  z-index: 50;
  pointer-events: none;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
  padding: 5px 9px;
  font-size: .78rem;
  line-height: 1.3;
  color: var(--text);
  white-space: nowrap;
  transform: translate(-50%, calc(-100% - 12px));
}
.chart-tip .tip-label { color: var(--muted); margin-right: 6px; }
.chart-tip b { color: #fff; font-weight: 700; }

.ranklist { list-style: none; margin: .5rem 0 0; padding: 0; counter-reset: rl; }
.ranklist li { display: flex; justify-content: space-between; padding: 4px 0; border-bottom: 1px solid var(--border); }
.ranklist li:last-child { border-bottom: none; }
.ranklist .emoji { font-size: 1.1rem; }

.misc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 10px; margin-top: 10px; }
.misc-item {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: 6px;
  padding: 9px 12px;
  display: flex;
  flex-direction: column;
}
.misc-label { color: var(--muted); font-size: .78rem; text-transform: uppercase; letter-spacing: .4px; }
.misc-value { font-weight: 700; }

.samples { list-style: none; margin: 0; padding: 0; }
.samples li {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  margin-bottom: 6px;
  color: var(--secondary);
}

.ai h3 { margin-top: .8rem; }
.ai .topics { display: flex; flex-wrap: wrap; gap: 6px; margin: 4px 0 10px; }
.ai .topic { background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px; padding: 3px 10px; font-size: .85rem; }
.ai .err { color: var(--warn); }
#ai-refresh { margin-top: 12px; }

/* friend graph */
:root {
  --fm-primary: #7dfb83;
  --fm-secondary: #2596be;
  --fm-primary-dim: rgba(125, 251, 131, .14);
}

.fm-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.fm-head-text h1 { color: var(--fm-primary); }
.fm-stats { display: flex; gap: 8px; flex-wrap: wrap; }
.fm-stat {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 13px;
  font-size: .85rem;
  color: var(--muted);
  white-space: nowrap;
}
.fm-stat-num { color: var(--fm-primary); font-weight: 800; }

.graph-shell { position: relative; }

.graph-box {
  position: relative;
  height: 70vh;
  min-height: 460px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  touch-action: none;
}
.graph-box canvas { display: block; width: 100%; height: 100%; cursor: grab; }
.graph-box canvas:active { cursor: grabbing; }
.graph-loading {
  position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  display: flex; align-items: center; gap: 10px; color: var(--muted);
}
.fm-spinner {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--border);
  border-top-color: var(--fm-primary);
  display: inline-block;
  animation: fm-spin .8s linear infinite;
}
@keyframes fm-spin { to { transform: rotate(360deg); } }

/* floating toolbar */
.fm-toolbar {
  position: absolute; top: 12px; left: 12px; right: 12px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 10px; pointer-events: none; z-index: 3;
}
.fm-find { pointer-events: auto; }
.fm-find input {
  background: rgba(22, 24, 28, .82);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 12px;
  width: 190px;
  font-size: .9rem;
}
.fm-find input::placeholder { color: var(--muted); }
.fm-find input:focus { outline: none; border-color: var(--fm-primary); box-shadow: 0 0 0 2px var(--fm-primary-dim); }
.fm-tools { display: flex; gap: 6px; pointer-events: auto; }
.fm-btn {
  width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(22, 24, 28, .82);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  color: var(--secondary);
  border-radius: 8px;
  font-size: 1.05rem; font-weight: 700; line-height: 1;
  cursor: pointer;
  transition: border-color .12s, color .12s, background .12s;
}
.fm-btn:hover { border-color: var(--fm-primary); color: var(--fm-primary); }
.fm-btn[aria-pressed="false"], .fm-btn.off { color: var(--muted); opacity: .65; }

/* legend */
.fm-legend {
  position: absolute; left: 12px; bottom: 12px;
  display: flex; flex-wrap: wrap; gap: 14px;
  background: rgba(22, 24, 28, .82);
  -webkit-backdrop-filter: blur(6px); backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: .8rem; color: var(--muted);
  z-index: 3;
}
.fm-leg { display: inline-flex; align-items: center; gap: 6px; }
.fm-dot { width: 11px; height: 11px; border-radius: 3px; display: inline-block; }
.fm-dot-center { background: var(--fm-primary); }
.fm-dot-node { background: #2a2e35; border: 1px solid var(--border); }
.fm-line { width: 16px; height: 0; border-top: 2px solid rgba(138, 144, 152, .8); display: inline-block; }
.fm-line-mutual { border-top-color: var(--fm-secondary); }

/* hover tooltip */
.fm-tip {
  position: absolute; z-index: 4; pointer-events: none;
  background: rgba(16, 18, 22, .96);
  border: 1px solid var(--border);
  border-left: 3px solid var(--fm-primary);
  border-radius: 8px;
  padding: 8px 11px;
  font-size: .82rem; color: var(--secondary);
  max-width: 240px;
  box-shadow: 0 6px 20px rgba(0, 0, 0, .45);
}
.fm-tip b { display: block; color: #fff; font-size: .92rem; margin-bottom: 3px; }
.fm-tip span { display: block; color: var(--muted); }

.fm-hint { margin-top: 12px; }

@media (max-width: 560px) {
  .fm-find input { width: 130px; }
  .fm-legend { gap: 10px; font-size: .72rem; }
}

.notfound { text-align: center; padding: 60px 0; }
.notfound .hero-links { justify-content: center; margin-top: 18px; }

/* footer */
.site-footer { border-top: 1px solid var(--border); background: var(--bg-2); margin-top: 30px; flex-shrink: 0; }
.footer-inner { padding: 22px 0; }
.footer-inner > div { display: flex; gap: 16px; margin-bottom: 8px; }
.footer-inner a { color: var(--secondary); font-weight: 600; }

@media (max-width: 820px) {
  .hero { grid-template-columns: 1fr; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .main-nav { display: none; }
  .search input { width: 130px; }
}