:root{
  /* Neoklassik ilhomli, iliq/nafis neytral palitra — sovuq kulrang o'rniga
     yumshoq fil suyagi (ivory) tusi, ko'zni charchatmaydigan och fon. */
  --color-bg: #f4f1ea;
  --color-bg-subtle: #ece7db;
  --color-panel: #fffdf9;
  --color-panel-alt: #f9f6ef;
  --color-border: #e5ddc9;
  --color-border-strong: #d3c7a8;
  --color-primary: #2454e0;
  --color-primary-dark: #1a3fb0;
  --color-primary-light: #4d78f0;
  --color-accent: #b3893a;
  --color-text: #201c14;
  --color-text-muted: #7a7360;
  --color-text-faint: #ab9f80;
  --color-danger: #e5484d;
  --color-success: #16a34a;
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --sidebar-w: 268px;
  --rightpanel-w: 420px; /* orqaga moslik uchun qoldirilgan, endi ishlatilmaydi */
  --topopanel-w: 460px; /* orqaga moslik uchun qoldirilgan, endi ishlatilmaydi */
  /* REAL/TOPO xaritalari orasidagi bo'luvchi — DOIMIY MARKAZDA boshlanadi (1fr/1fr),
     ikki tomonga erkin sudraladi (js/panelResizer.js), nisbat saqlanadi (localStorage). */
  --map-real: 1fr;
  --map-topo: 1fr;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --ease: cubic-bezier(.2,.7,.3,1);
  --shadow-xs: 0 1px 2px rgba(16,24,40,.05);
  --shadow-panel: 0 1px 2px rgba(16,24,40,.04), 0 2px 8px rgba(16,24,40,.05);
  --shadow-md: 0 4px 14px rgba(16,24,40,.09), 0 1px 3px rgba(16,24,40,.06);
  --shadow-lg: 0 16px 40px rgba(16,24,40,.16), 0 4px 12px rgba(16,24,40,.08);
  --shadow-primary: 0 4px 14px rgba(36,84,224,.28);
  /* Jadvalda REAL (ko'k) / TOPO (qizg'ish) tomonlarini ajratish uchun nozik, och tintlar. */
  --tint-real: rgba(59,130,246,.07);
  --tint-real-strong: rgba(59,130,246,.13);
  --tint-topo: rgba(244,63,94,.06);
  --tint-topo-strong: rgba(244,63,94,.12);
  /* ===== Ikon-rel (icon rail) sidebar — ArcGIS/VS Code Activity Bar
     tarkibidan ilhomlangan, lekin YENGIL/nafis: alohida to'q palitra emas,
     odatiy --color-* tokenlaridan foydalanadi va sahifa mavzusiga (yorug'/
     qorong'i) tabiiy ravishda ergashadi. ===== */
  --rail-w: 52px;
}

@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    --color-bg: #101319;
    --color-bg-subtle: #0c0e13;
    --color-panel: #181c25;
    --color-panel-alt: #1e222c;
    --color-border: #262b36;
    --color-border-strong: #343b49;
    --color-primary: #4d7cf2;
    --color-primary-dark: #3862d6;
    --color-primary-light: #7098f5;
    --color-text: #eceef3;
    --color-text-muted: #929ab0;
    --color-text-faint: #656d82;
    --shadow-panel: 0 1px 2px rgba(0,0,0,.3), 0 2px 10px rgba(0,0,0,.25);
    --shadow-md: 0 6px 18px rgba(0,0,0,.4), 0 1px 4px rgba(0,0,0,.3);
    --shadow-lg: 0 20px 48px rgba(0,0,0,.55), 0 4px 14px rgba(0,0,0,.35);
    --shadow-primary: 0 4px 16px rgba(77,124,242,.35);
    --tint-real: rgba(77,124,242,.10);
    --tint-real-strong: rgba(77,124,242,.18);
    --tint-topo: rgba(248,113,113,.09);
    --tint-topo-strong: rgba(248,113,113,.16);
  }
}
:root[data-theme="dark"]{
  --color-bg: #101319;
  --color-bg-subtle: #0c0e13;
  --color-panel: #181c25;
  --color-panel-alt: #1e222c;
  --color-border: #262b36;
  --color-border-strong: #343b49;
  --color-primary: #4d7cf2;
  --color-primary-dark: #3862d6;
  --color-primary-light: #7098f5;
  --color-text: #eceef3;
  --color-text-muted: #929ab0;
  --color-text-faint: #656d82;
  --shadow-panel: 0 1px 2px rgba(0,0,0,.3), 0 2px 10px rgba(0,0,0,.25);
  --shadow-md: 0 6px 18px rgba(0,0,0,.4), 0 1px 4px rgba(0,0,0,.3);
  --shadow-lg: 0 20px 48px rgba(0,0,0,.55), 0 4px 14px rgba(0,0,0,.35);
  --shadow-primary: 0 4px 16px rgba(77,124,242,.35);
  --tint-real: rgba(77,124,242,.10);
  --tint-real-strong: rgba(77,124,242,.18);
  --tint-topo: rgba(248,113,113,.09);
  --tint-topo-strong: rgba(248,113,113,.16);
}

*{ box-sizing: border-box; }

[hidden]{ display: none !important; }

html, body{
  height: 100%;
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", -apple-system, "Inter", Roboto, Arial, sans-serif;
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  overscroll-behavior-y: none;
}

::selection{ background: rgba(36,84,224,.25); }

::-webkit-scrollbar{ width: 10px; height: 10px; }
::-webkit-scrollbar-track{ background: transparent; }
::-webkit-scrollbar-thumb{
  background: var(--color-border-strong);
  border-radius: 20px;
  border: 2px solid var(--color-panel);
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover{ background: var(--color-text-faint); }

button{
  font-family: inherit;
  cursor: pointer;
}
button:focus-visible,
input:focus-visible,
select:focus-visible{
  outline: 2px solid var(--color-primary-light);
  outline-offset: 1px;
}

.btn-primary{
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  color: #fff;
  border: none;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13.5px;
  font-weight: 600;
  letter-spacing: .01em;
  box-shadow: var(--shadow-primary);
  transition: filter .15s var(--ease), box-shadow .15s var(--ease), transform .12s var(--ease);
}
.btn-primary:hover{ filter: brightness(1.06); box-shadow: 0 6px 18px rgba(36,84,224,.36); transform: translateY(-1px); }
.btn-primary:active{ transform: translateY(0); filter: brightness(.97); box-shadow: var(--shadow-xs); }

.badge{
  display: inline-block;
  min-width: 18px;
  padding: 1px 6px;
  border-radius: 9px;
  background: var(--color-primary);
  color: #fff;
  font-size: 10.5px;
  font-weight: 700;
  text-align: center;
  box-shadow: 0 1px 3px rgba(36,84,224,.35);
}