/* ========================================================================
   PiX Atlas — sober intelligence dashboard
   ========================================================================
   Design intent: data-dense, restrained, professional. Neutral surfaces +
   one functional accent. No gradients, no decorative shapes, no rounded
   pill aesthetics. Color is reserved for category encoding on the map.
   ======================================================================= */

:root {
  /* type scale (compact) */
  --text-2xs: 11px;
  --text-xs:  12px;
  --text-sm:  13px;
  --text-base: 14px;
  --text-md:  15px;
  --text-lg:  17px;
  --text-xl:  22px;

  --font-sans: ui-sans-serif, -apple-system, "Inter", "Segoe UI", Roboto,
               "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "JetBrains Mono", "SF Mono", Menlo, Consolas, monospace;

  --r-sm: 3px;
  --r-md: 4px;
  --r-lg: 6px;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;

  /* category colors — used in dataviz palette */
  --cat-1: #E07A4E;  /* Military and Security */
  --cat-2: #6FA8DC;  /* Politics and Governance */
  --cat-3: #C6B250;  /* UAS Incident */
  --cat-4: #B95F8A;  /* Military and Security-Iran/Militia Reported */
  --cat-5: #5DAE94;  /* Economics */
  --cat-6: #9D7DC2;  /* Social and Humanitarian */
  --cat-7: #4E9CB9;  /* Politics and Governance-Iran/Militia Reported */
  --cat-8: #A6A39B;  /* Other */
  --cat-9: #C58D3F;  /* Economics-Iran/Militia Reported */
  --cat-10: #8FB04A; /* Social and Humanitarian-Iran/Militia Reported */
  --cat-11: #C76B58; /* Other-Iran/Militia Reported */
  --cat-12: #7E94B0; /* UAS Incident-Iran/Militia Reported */

  --topbar-h: 52px;
  --filter-w: 296px;
  --eventlist-w: 360px;
}

/* DARK (default) */
:root,
[data-theme="dark"] {
  --bg:           #0d1014;
  --bg-elev:      #12161c;
  --surface:      #161b22;
  --surface-2:    #1b212a;
  --surface-hi:   #232a35;
  --border:       #262d38;
  --border-strong:#37404d;
  --text:         #e6e8ec;
  --text-muted:   #99a1ad;
  --text-faint:   #6a7280;
  --accent:       #d97757;
  --accent-hi:    #e88a6d;
  --focus:        #6aa6ff;
  --warning:      #e6b53e;
  --danger:       #d96461;
  --map-tile-filter: brightness(0.78) saturate(0.55) contrast(1.02);
}

[data-theme="light"] {
  --bg:           #f5f3ee;
  --bg-elev:      #eeece5;
  --surface:      #ffffff;
  --surface-2:    #f7f5ef;
  --surface-hi:   #ecebe4;
  --border:       #d8d4c8;
  --border-strong:#bbb6a4;
  --text:         #1d2026;
  --text-muted:   #5a6068;
  --text-faint:   #8a8f97;
  --accent:       #b8542f;
  --accent-hi:    #9b441f;
  --focus:        #2c6ec8;
  --warning:      #a86a13;
  --danger:       #a73b39;
  --map-tile-filter: none;
}

/* ----------------------------------------- reset / base */
*,*::before,*::after { box-sizing: border-box; }
html,body { height: 100%; margin: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow: hidden;
}
input, select, button, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
ol, ul { list-style: none; padding: 0; margin: 0; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hi); text-decoration: underline; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0;
  margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: -9999px;
}
.skip-link:focus {
  left: var(--space-2); top: var(--space-2); z-index: 9999;
  background: var(--accent); color: #fff; padding: 6px 12px; border-radius: var(--r-md);
}
.muted { color: var(--text-muted); }
.kicker {
  display: inline-block;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 600;
}

/* ----------------------------------------- topbar */
.topbar {
  position: relative;
  z-index: 1100;
  height: var(--topbar-h);
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  gap: var(--space-4);
}
.brand { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.logo { color: var(--accent); flex-shrink: 0; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; min-width: 0; }
.brand-title { font-weight: 600; font-size: var(--text-md); letter-spacing: -0.005em; }
.brand-sub { font-size: var(--text-2xs); color: var(--text-muted); letter-spacing: 0.04em; text-transform: uppercase; }

.topbar-actions { display: flex; align-items: center; gap: var(--space-2); flex-shrink: 0; }
.search {
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 0 var(--space-3);
  height: 32px; width: 280px; color: var(--text-muted);
  transition: border-color .15s, box-shadow .15s;
}
.search:focus-within { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); color: var(--text); }
.search input {
  border: 0; outline: 0; background: transparent;
  flex: 1; min-width: 0; padding: 0; font-size: var(--text-sm);
}
.search input::placeholder { color: var(--text-faint); }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  height: 32px; padding: 0 var(--space-3);
  background: var(--surface); color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: var(--text-sm); font-weight: 500;
  transition: background .12s, border-color .12s, color .12s;
}
.btn:hover { background: var(--surface-hi); border-color: var(--border-strong); }
.btn:active { background: var(--surface-2); }
.btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--surface); }
.btn-icon { width: 32px; padding: 0; justify-content: center; }
.mobile-only { display: none; }

/* ----------------------------------------- layout */
.layout {
  display: grid;
  grid-template-columns: var(--filter-w) 1fr var(--eventlist-w);
  height: calc(100vh - var(--topbar-h));
  height: calc(100dvh - var(--topbar-h));
}

.filters, .eventlist {
  background: var(--bg-elev);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-gutter: stable;
}
.eventlist { border-right: 0; border-left: 1px solid var(--border); display: flex; flex-direction: column; min-height: 0; }

/* ----------------------------------------- filters */
.filter-section {
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--border);
}
.filter-h {
  display: block;
  font-size: var(--text-2xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0 0 var(--space-3) 0;
}
.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--surface); border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: var(--text-sm); font-weight: 500;
  padding: 4px 10px; border-radius: 999px;
  transition: background .12s, border-color .12s, color .12s;
}
.chip:hover { color: var(--text); border-color: var(--border-strong); }
.chip[aria-pressed="true"] {
  background: var(--surface-hi); color: var(--text); border-color: var(--accent);
}
.chip .chip-count { font-variant-numeric: tabular-nums; color: var(--text-faint); font-size: var(--text-2xs); }
.chip[aria-pressed="true"] .chip-count { color: var(--text-muted); }

select, input[type="date"] {
  width: 100%;
  height: 32px;
  padding: 0 var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  font-size: var(--text-sm);
  color: var(--text);
  appearance: none;
  -webkit-appearance: none;
}
select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 6' width='10' height='6'><path d='M1 1l4 4 4-4' fill='none' stroke='%2399a1ad' stroke-width='1.4' stroke-linecap='round'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px center;
  padding-right: 28px;
}
select:hover, input[type="date"]:hover { border-color: var(--border-strong); }
select:focus, input[type="date"]:focus, input:focus {
  outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent);
}
.date-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-2); }
.date-field { display: flex; flex-direction: column; gap: 4px; font-size: var(--text-2xs); color: var(--text-faint); }
.check-row {
  margin-top: var(--space-3);
  display: flex; align-items: flex-start; gap: var(--space-2);
  font-size: var(--text-xs); color: var(--text-muted); cursor: pointer;
}
.check-row input { margin-top: 1px; accent-color: var(--accent); }

.legend { display: flex; flex-direction: column; gap: 6px; }
.legend li {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: var(--text-xs); color: var(--text-muted);
}
.legend .sw {
  width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.3);
}
.legend .lg-name { flex: 1; min-width: 0; white-space: normal; overflow-wrap: anywhere; line-height: 1.25; }
.legend .lg-count { font-variant-numeric: tabular-nums; color: var(--text-faint); font-size: var(--text-2xs); }

.data-note p {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.5;
  margin: var(--space-2) 0 0 0;
}

/* ----------------------------------------- map region */
.map-region {
  position: relative;
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
}
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border);
  border-bottom: 1px solid var(--border);
}
.stat {
  background: var(--bg-elev);
  padding: var(--space-3) var(--space-4);
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}
.stat-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  font-weight: 600;
}
.stat-value {
  font-size: var(--text-lg);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  letter-spacing: -0.01em;
}
.stat-value-sm {
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1.3;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}
.stat-sub { font-size: var(--text-2xs); color: var(--text-muted); }
.stat-anomaly { background: color-mix(in srgb, var(--warning) 12%, var(--bg-elev)); }
.stat-anomaly .stat-label { color: var(--warning); }
.stat[hidden] { display: none !important; }

#map {
  flex: 1;
  min-height: 0;
  background: var(--bg);
}
.leaflet-tile-pane { filter: var(--map-tile-filter); }
.leaflet-container {
  background: var(--bg);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
}
.leaflet-control-attribution {
  background: rgba(0,0,0,0.6) !important;
  color: var(--text-muted) !important;
  font-size: 10px !important;
}
.leaflet-control-attribution a { color: var(--text) !important; }
[data-theme="light"] .leaflet-control-attribution {
  background: rgba(255,255,255,0.85) !important;
  color: var(--text-muted) !important;
}
.leaflet-bar { border: 1px solid var(--border) !important; box-shadow: none !important; }
.leaflet-bar a {
  background: var(--surface) !important;
  color: var(--text) !important;
  border-bottom: 1px solid var(--border) !important;
}
.leaflet-bar a:hover { background: var(--surface-hi) !important; }

/* clusters */
.marker-cluster {
  background: transparent !important;
  font-family: var(--font-sans);
}
.marker-cluster div {
  background: var(--surface) !important;
  border: 1px solid var(--accent);
  color: var(--text) !important;
  font-weight: 600;
  font-size: var(--text-xs) !important;
  width: 32px !important; height: 32px !important;
  margin-left: 4px; margin-top: 4px;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 25%, transparent);
}
.marker-cluster-medium div { width: 36px !important; height: 36px !important; margin-left: 2px; margin-top: 2px; }
.marker-cluster-large div { width: 40px !important; height: 40px !important; margin-left: 0; margin-top: 0; }

/* event dot */
.pix-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  border: 1.5px solid rgba(0,0,0,0.55);
  box-shadow: 0 0 0 1px rgba(255,255,255,0.15);
}
[data-theme="light"] .pix-dot { border-color: rgba(255,255,255,0.85); box-shadow: 0 0 0 1px rgba(0,0,0,0.2); }
.pix-dot.anomaly {
  width: 12px; height: 12px;
  border-radius: 2px;
  transform: rotate(45deg);
  border-color: var(--warning) !important;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--warning) 35%, transparent);
}

/* popup */
.leaflet-popup-content-wrapper {
  background: var(--bg-elev) !important;
  color: var(--text) !important;
  border: 1px solid var(--border-strong);
  border-radius: var(--r-md) !important;
  box-shadow: 0 10px 30px rgba(0,0,0,0.45) !important;
  padding: 0 !important;
}
.leaflet-popup-tip { background: var(--bg-elev) !important; border: 1px solid var(--border-strong); }
.leaflet-popup-close-button { color: var(--text-muted) !important; padding: 6px 8px !important; }
.leaflet-popup-content { margin: 0 !important; width: 320px !important; max-width: 320px; }

.popup {
  font-size: var(--text-xs);
  color: var(--text);
  line-height: 1.5;
}
.popup-head {
  padding: var(--space-3) var(--space-4) var(--space-2);
  border-bottom: 1px solid var(--border);
}
.popup-row {
  display: flex; align-items: center; gap: 6px;
  font-size: var(--text-2xs);
  color: var(--text-muted);
}
.popup-row .pix-dot { width: 8px; height: 8px; border-width: 1px; }
.popup-id { color: var(--text-faint); font-family: var(--font-mono); }
.popup-date { color: var(--text); font-variant-numeric: tabular-nums; font-weight: 500; }
.popup-date.anomaly { color: var(--warning); }
.popup-title {
  font-size: var(--text-sm); font-weight: 600;
  margin: 4px 0 0 0;
  letter-spacing: -0.005em;
}
.popup-subtitle { font-size: var(--text-2xs); color: var(--text-muted); margin-top: 2px; }
.popup-body { padding: var(--space-3) var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.popup-fields { display: grid; grid-template-columns: 78px 1fr; gap: 4px var(--space-3); font-size: var(--text-2xs); }
.popup-fields dt { color: var(--text-faint); }
.popup-fields dd { margin: 0; color: var(--text); }
.popup-desc {
  font-size: var(--text-xs);
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  padding: var(--space-2) var(--space-3);
  max-height: 120px; overflow-y: auto;
  line-height: 1.5;
}
.popup-foot {
  padding: var(--space-2) var(--space-4) var(--space-3);
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: var(--text-2xs); color: var(--text-muted);
  gap: var(--space-2);
}
.popup-anomaly {
  margin-top: var(--space-2);
  padding: 6px var(--space-2);
  background: color-mix(in srgb, var(--warning) 15%, transparent);
  border: 1px solid color-mix(in srgb, var(--warning) 50%, transparent);
  color: var(--warning);
  font-size: var(--text-2xs);
  border-radius: var(--r-sm);
}

/* ----------------------------------------- event list */
.eventlist-head {
  padding: var(--space-3) var(--space-4);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
  position: sticky; top: 0; z-index: 2;
}
.eventlist-head h2 { margin: 0; }
.eventlist-head .sort select { height: 28px; font-size: var(--text-xs); padding-right: 24px; min-width: 130px; }
#listCount { font-size: var(--text-2xs); margin-left: 4px; font-weight: 500; letter-spacing: 0; text-transform: none; font-variant-numeric: tabular-nums; }
.event-items {
  flex: 1; overflow-y: auto; min-height: 0;
  scrollbar-gutter: stable;
}
.event-item {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  display: grid;
  grid-template-columns: 8px 1fr auto;
  gap: var(--space-3);
  align-items: start;
  transition: background .1s;
}
.event-item:hover { background: var(--surface); }
.event-item.active { background: var(--surface-hi); border-left: 2px solid var(--accent); padding-left: calc(var(--space-4) - 2px); }
.event-item:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }
.event-item .ei-dot {
  width: 8px; height: 8px; border-radius: 50%; margin-top: 5px;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.4);
}
.event-item .ei-body { min-width: 0; }
.event-item .ei-type { font-size: var(--text-sm); font-weight: 600; color: var(--text); margin: 0 0 2px; line-height: 1.3;
  overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.event-item .ei-meta { font-size: var(--text-2xs); color: var(--text-muted); }
.event-item .ei-meta .sep { color: var(--text-faint); margin: 0 4px; }
.event-item .ei-date {
  font-size: var(--text-2xs); color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.event-item .ei-date.anomaly { color: var(--warning); }
.eventlist-foot {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-2xs);
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
}
.event-empty {
  padding: var(--space-8) var(--space-4);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
}

/* loading */
.loading {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  background: var(--bg-elev);
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: var(--r-md);
  font-size: var(--text-xs);
  color: var(--text-muted);
  display: flex; align-items: center; gap: var(--space-2);
  z-index: 800;
}
.loading.hidden { display: none; }
.loading .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1.2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.3; } }

/* ----------------------------------------- responsive */
@media (max-width: 1280px) {
  :root { --filter-w: 264px; --eventlist-w: 320px; }
  .stat { padding: var(--space-2) var(--space-3); }
}
@media (max-width: 980px) {
  :root { --filter-w: 240px; --eventlist-w: 0px; }
  .layout { grid-template-columns: var(--filter-w) 1fr; }
  .eventlist {
    position: fixed; right: 0; top: var(--topbar-h);
    height: calc(100vh - var(--topbar-h));
    height: calc(100dvh - var(--topbar-h));
    width: 340px;
    z-index: 1050;
    transform: translateX(100%);
    transition: transform .25s ease;
    border-left: 1px solid var(--border);
  }
  .eventlist.open { transform: translateX(0); box-shadow: -8px 0 24px rgba(0,0,0,0.4); }
  .mobile-only { display: inline-flex; }
  .search { width: 200px; }
}
@media (max-width: 720px) {
  :root { --filter-w: 0; --topbar-h: 56px; }
  .layout { grid-template-columns: 1fr; }
  .filters {
    position: fixed; left: 0; top: var(--topbar-h);
    height: calc(100vh - var(--topbar-h));
    height: calc(100dvh - var(--topbar-h));
    width: 280px;
    z-index: 1050;
    transform: translateX(-100%);
    transition: transform .25s ease;
    border-right: 1px solid var(--border);
  }
  .filters.open { transform: translateX(0); box-shadow: 8px 0 24px rgba(0,0,0,0.4); }
  .eventlist { width: 100%; }
  /* stats use auto-fit grid by default */
  .brand-sub { display: none; }
  .topbar { padding: 0 var(--space-3); }
  .search { width: 140px; }
  .btn { padding: 0 var(--space-2); font-size: var(--text-xs); }
  .btn span, #exportBtn { /* keep button label visible */ }
}
@media (max-width: 480px) {
  .search { display: none; }
  #exportBtn { padding: 0 var(--space-2); }
  #exportBtn svg + * { display: none; }
}

/* ----------------------------------------- backdrop (mobile) */
.backdrop {
  position: fixed; inset: var(--topbar-h) 0 0 0;
  background: rgba(0,0,0,0.5);
  z-index: 1040;
  opacity: 0; pointer-events: none;
  transition: opacity .2s;
}
.backdrop.show { opacity: 1; pointer-events: auto; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}