/* ------------------------------------------------------------------ */
/*  Variables                                                           */
/* ------------------------------------------------------------------ */
:root {
  --bg-base:    #0d1117;
  --bg-card:    #161b22;
  --bg-input:   #1c2128;
  --border:     #30363d;
  --text:       #e6edf3;
  --text-muted: #8b949e;
  --accent:     #58a6ff;
  --accent2:    #bc8cff;

  --risk-low:      #3fb950;
  --risk-medium:   #d29922;
  --risk-high:     #f85149;
  --risk-critical: #ff0040;

  --radius: 8px;
  --shadow: 0 4px 16px rgba(0,0,0,.4);
}

/* ------------------------------------------------------------------ */
/*  Reset & Base                                                        */
/* ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  background: var(--bg-base);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  min-height: 100vh;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ------------------------------------------------------------------ */
/*  Layout                                                              */
/* ------------------------------------------------------------------ */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  grid-template-rows: auto 1fr;
  min-height: 100vh;
}
.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  height: 56px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
}
.topbar .logo {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -.5px;
  color: var(--text);
}
.topbar .logo span { color: var(--accent); }
.topbar .badge {
  font-size: .65rem;
  padding: 2px 6px;
  border-radius: 99px;
  background: #1f3a5f;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: .5px;
  text-transform: uppercase;
}

/* Sidebar */
.sidebar {
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  overflow-y: auto;
}
.sidebar-section {
  padding: 8px 16px 4px;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
  color: var(--text-muted);
}
.history-list { list-style: none; }
.history-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  cursor: pointer;
  border-left: 3px solid transparent;
  transition: background .15s;
  font-size: .82rem;
}
.history-item:hover { background: #ffffff08; }
.history-item.active {
  border-left-color: var(--accent);
  background: #1f3a5f44;
}
.hist-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.hist-ioc {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
}
.hist-score {
  font-size: .75rem;
  font-weight: 700;
  flex-shrink: 0;
}
.btn-clear-history {
  margin: 8px 16px;
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .75rem;
  padding: 5px 10px;
  border-radius: var(--radius);
  cursor: pointer;
  width: calc(100% - 32px);
  transition: border-color .2s, color .2s;
}
.btn-clear-history:hover { border-color: var(--risk-high); color: var(--risk-high); }

/* Main */
.main-content {
  padding: 28px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* ------------------------------------------------------------------ */
/*  Search bar                                                          */
/* ------------------------------------------------------------------ */
.search-wrap {
  display: flex;
  gap: 10px;
  align-items: center;
}
.search-input {
  flex: 1;
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .95rem;
  padding: 12px 16px;
  border-radius: var(--radius);
  outline: none;
  transition: border-color .2s;
}
.search-input::placeholder { color: var(--text-muted); }
.search-input:focus { border-color: var(--accent); }
.btn-analyze {
  background: var(--accent);
  color: #0d1117;
  border: none;
  font-weight: 700;
  font-size: .9rem;
  padding: 12px 24px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: opacity .2s;
  white-space: nowrap;
}
.btn-analyze:hover { opacity: .85; }
.btn-analyze:disabled { opacity: .45; cursor: not-allowed; }

/* ------------------------------------------------------------------ */
/*  Cards                                                               */
/* ------------------------------------------------------------------ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  font-size: .85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-muted);
}
.card-header .card-icon { margin-right: 8px; }
.card-body { padding: 20px; }

/* ------------------------------------------------------------------ */
/*  Risk score hero                                                     */
/* ------------------------------------------------------------------ */
.hero-grid {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  align-items: center;
}
.score-ring-wrap {
  position: relative;
  width: 160px;
  height: 160px;
  margin: auto;
}
.score-ring-wrap svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.score-ring-bg { fill: none; stroke: var(--border); stroke-width: 10; }
.score-ring-fg {
  fill: none;
  stroke-width: 10;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s ease, stroke .5s;
}
.score-center {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.score-number {
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1;
}
.score-label {
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .8px;
  text-transform: uppercase;
  margin-top: 4px;
}

.risk-info { display: flex; flex-direction: column; gap: 10px; }
.risk-row {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: .9rem;
}
.risk-row .rl { color: var(--text-muted); min-width: 120px; }
.risk-row .rv { font-weight: 600; }

.risk-bar-wrap { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.risk-bar-label { display: flex; justify-content: space-between; font-size: .78rem; color: var(--text-muted); }
.risk-bar {
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  overflow: hidden;
}
.risk-bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--accent);
  transition: width 1s ease;
}

/* ------------------------------------------------------------------ */
/*  Source cards grid                                                   */
/* ------------------------------------------------------------------ */
.sources-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.source-badge {
  font-size: .7rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 99px;
  letter-spacing: .4px;
}
.source-vt   { background: #1f3a5f; color: #58a6ff; }
.source-ab   { background: #3d1f1f; color: #f85149; }
.source-sh   { background: #2a1f3d; color: #bc8cff; }
.source-err  { background: #2d2d2d; color: #8b949e; }

.kv-list { display: flex; flex-direction: column; gap: 8px; }
.kv { display: flex; justify-content: space-between; font-size: .83rem; }
.kv .k { color: var(--text-muted); }
.kv .v { font-weight: 500; text-align: right; max-width: 55%; word-break: break-all; }

.tag-list { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 8px; }
.tag {
  font-size: .72rem;
  padding: 2px 8px;
  border-radius: 99px;
  background: #1c2128;
  border: 1px solid var(--border);
  color: var(--text-muted);
}

/* Ports grid */
.ports-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.port-chip {
  font-size: .72rem;
  padding: 3px 10px;
  border-radius: 99px;
  background: #1c2128;
  border: 1px solid #30363d;
  color: var(--text);
  font-family: monospace;
}

/* Vuln chips */
.vuln-chip {
  font-size: .72rem;
  padding: 3px 8px;
  border-radius: 4px;
  background: #3d1f1f;
  border: 1px solid #5a2020;
  color: var(--risk-high);
  font-family: monospace;
}

/* ------------------------------------------------------------------ */
/*  Charts row                                                          */
/* ------------------------------------------------------------------ */
.charts-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.chart-container { position: relative; height: 220px; }

/* ------------------------------------------------------------------ */
/*  Map                                                                 */
/* ------------------------------------------------------------------ */
#map { height: 300px; border-radius: 0 0 var(--radius) var(--radius); }

/* OSM tiles dark mode: filter applies to img elements inside the tile layer */
.map-tiles-dark img {
  filter: invert(100%) hue-rotate(180deg) brightness(85%) contrast(90%) saturate(80%);
}

/* ------------------------------------------------------------------ */
/*  Risk colors (dynamic via data attr)                                 */
/* ------------------------------------------------------------------ */
[data-risk="low"]      { color: var(--risk-low); }
[data-risk="medium"]   { color: var(--risk-medium); }
[data-risk="high"]     { color: var(--risk-high); }
[data-risk="critical"] { color: var(--risk-critical); }

.hist-dot[data-risk="low"]      { background: var(--risk-low); }
.hist-dot[data-risk="medium"]   { background: var(--risk-medium); }
.hist-dot[data-risk="high"]     { background: var(--risk-high); }
.hist-dot[data-risk="critical"] { background: var(--risk-critical); }

/* ------------------------------------------------------------------ */
/*  Loader spinner                                                      */
/* ------------------------------------------------------------------ */
.spinner {
  display: none;
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading .spinner { display: block; }

/* ------------------------------------------------------------------ */
/*  Error banner                                                        */
/* ------------------------------------------------------------------ */
.error-banner {
  display: none;
  background: #3d1f1f;
  border: 1px solid #5a2020;
  color: var(--risk-high);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: .88rem;
}
.error-banner.visible { display: block; }

/* ------------------------------------------------------------------ */
/*  Misc                                                                */
/* ------------------------------------------------------------------ */
.empty-state {
  text-align: center;
  color: var(--text-muted);
  font-size: .88rem;
  padding: 40px 0;
}
.export-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .78rem;
  padding: 5px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.export-btn:hover { border-color: var(--accent); color: var(--accent); }

/* ------------------------------------------------------------------ */
/*  Responsive                                                          */
/* ------------------------------------------------------------------ */
@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .sources-grid { grid-template-columns: 1fr; }
  .charts-row { grid-template-columns: 1fr; }
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
}