:root {
  --bg: #020b11;
  --panel: rgba(6, 18, 28, 0.78);
  --panel-strong: rgba(8, 26, 38, 0.92);
  --panel-border: rgba(87, 255, 214, 0.16);
  --panel-soft: rgba(45, 255, 211, 0.08);
  --text: #eafcff;
  --muted: #8eb3c1;
  --accent: #2dffd3;
  --accent-2: #149dff;
  --danger: #ff6363;
  --warning: #ffb14a;
  --shadow: 0 22px 80px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", Arial, sans-serif;
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  background: var(--bg);
}

#radar-canvas {
  width: 100%;
  height: 100%;
  display: block;
  cursor: grab;
}

#radar-canvas.dragging {
  cursor: grabbing;
}

.hud {
  position: absolute;
  z-index: 4;
}

.hud-top {
  top: 18px;
  left: 18px;
  right: 92px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  z-index: 7;
  pointer-events: none;
}

.hud-top > * {
  pointer-events: auto;
}

.brand-panel,
.stat-chip,
.menu-panel,
.zoom-btn,
.menu-toggle {
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.brand-panel {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(3, 12, 19, 0.92), rgba(3, 12, 19, 0.82));
  box-shadow: var(--shadow);
}

.brand-mark,
.intro-logo {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle at center, rgba(45,255,211,.8), rgba(20,157,255,.15) 64%, transparent 65%), url('/static/media/icons/favicon.ico') center center / 66% no-repeat;
  border: 1px solid rgba(45, 255, 211, 0.42);
  box-shadow: 0 0 28px rgba(45, 255, 211, 0.35);
}

.brand-title,
.menu-kicker,
.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--accent);
}

.brand-title {
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.8),
    0 0 10px rgba(0, 0, 0, 0.55);
}

.brand-subtitle,
.info-line,
.intro-copy p {
  color: var(--muted);
}

.brand-subtitle {
  color: rgba(244, 252, 255, 0.96);
  font-weight: 700;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.9),
    0 0 12px rgba(0, 0, 0, 0.7),
    0 0 22px rgba(0, 0, 0, 0.4);
}

.top-stats {
  display: flex;
  flex-direction: row;
  align-items: stretch;
  justify-content: flex-end;
  gap: 10px;
  max-width: min(48vw, 440px);
}

.stat-chip {
  min-width: 124px;
  padding: 12px 14px;
  border-radius: 16px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(3, 12, 19, 0.92), rgba(3, 12, 19, 0.82));
  box-shadow: var(--shadow);
}

.stat-label {
  display: block;
  font-size: 12px;
  color: rgba(232, 246, 252, 0.9);
  margin-bottom: 2px;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.9),
    0 0 10px rgba(0, 0, 0, 0.65);
}

.stat-value {
  font-size: 22px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.98);
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.95),
    0 0 12px rgba(0, 0, 0, 0.75),
    0 0 20px rgba(0, 0, 0, 0.45);
}

.alert {
  color: var(--warning);
  animation: blink 1s step-end infinite;
}

.alert-chip {
  border-color: rgba(255, 184, 77, 0.85);
  box-shadow:
    0 0 0 1px rgba(255, 184, 77, 0.22),
    0 0 18px rgba(255, 184, 77, 0.26),
    0 0 32px rgba(255, 122, 0, 0.14);
  animation: pulse-warning 1.35s ease-in-out infinite;
}

.alert-chip .stat-label,
.alert-chip .stat-value {
  color: #ffd38a;
}

.spectator-chip-strong {
  min-width: 188px;
  padding: 16px 22px;
  border-width: 1.5px;
  border-color: rgba(255, 205, 96, 0.72);
  background: linear-gradient(180deg, rgba(36, 20, 6, 0.96), rgba(20, 11, 4, 0.92));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow:
    0 0 0 1px rgba(255, 200, 84, 0.24),
    0 18px 42px rgba(0, 0, 0, 0.38),
    0 0 28px rgba(255, 176, 58, 0.18);
}

.spectator-chip-strong .stat-label {
  color: rgba(255, 232, 178, 0.98);
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 13px;
  margin-bottom: 0;
}

.spectator-chip-strong .stat-value {
  font-size: 28px;
  color: #fff6dc;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.98),
    0 0 14px rgba(0, 0, 0, 0.82),
    0 0 24px rgba(255, 190, 90, 0.2);
}

.spectator-chip-strong.alert-chip {
  border-color: rgba(255, 196, 84, 0.98);
  box-shadow:
    0 0 0 1px rgba(255, 204, 96, 0.34),
    0 0 20px rgba(255, 187, 70, 0.28),
    0 0 44px rgba(255, 120, 24, 0.2),
    0 18px 42px rgba(0, 0, 0, 0.4);
}

.fps-chip {
  min-width: 188px;
  padding: 16px 22px;
  border-width: 1.5px;
  border-color: rgba(116, 236, 255, 0.38);
  background: linear-gradient(180deg, rgba(7, 18, 30, 0.94), rgba(5, 14, 24, 0.88));
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  box-shadow:
    0 0 0 1px rgba(116, 236, 255, 0.18),
    0 18px 42px rgba(0, 0, 0, 0.38),
    0 0 24px rgba(116, 236, 255, 0.12);
}

.fps-chip .stat-label {
  margin-bottom: 0;
  font-weight: 700;
  letter-spacing: 0.08em;
  font-size: 13px;
  color: rgba(214, 245, 255, 0.94);
}

.fps-chip .stat-value {
  font-size: 28px;
  color: #f3fcff;
}

.hidden {
  display: none !important;
}

.hud-top-right {
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 6;
}

.hud-top-center {
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 8;
  pointer-events: auto;
}

.quick-follow-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border-radius: 18px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(3, 12, 19, 0.94), rgba(3, 12, 19, 0.84));
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.02);
}

.quick-follow-btn {
  min-width: 42px;
  height: 42px;
  padding: 0 12px;
  border-radius: 12px;
  border: 1px solid rgba(71, 184, 214, 0.22);
  background: linear-gradient(180deg, rgba(6, 20, 31, 0.94), rgba(6, 20, 31, 0.82));
  color: rgba(244, 252, 255, 0.96);
  cursor: pointer;
  font-size: 14px;
  font-weight: 800;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.95),
    0 0 10px rgba(0, 0, 0, 0.65);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.03),
    0 8px 18px rgba(0, 0, 0, 0.20);
}

.quick-follow-btn.active {
  background: linear-gradient(135deg, rgba(45, 255, 211, 0.18), rgba(20, 157, 255, 0.22));
  border-color: rgba(45, 255, 211, 0.46);
  color: #f4feff;
}

.quick-follow-btn:disabled {
  opacity: 0.42;
  cursor: default;
}

.quick-follow-free {
  min-width: 64px;
}

.zoom-btn,
.menu-toggle,
.menu-close,
.primary-action,
.segmented {
  border: 1px solid rgba(71, 184, 214, 0.22);
  background: var(--panel-strong);
  color: var(--text);
  cursor: pointer;
}

.zoom-btn {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  font-size: 28px;
  box-shadow: var(--shadow);
}

.hud-bottom-left {
  bottom: 20px;
  left: 20px;
  z-index: 8;
}

.hud-bottom-right {
  bottom: 20px;
  right: 20px;
  z-index: 8;
}

.watermark {
  display: inline-block;
  padding: 10px 14px;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: linear-gradient(180deg, rgba(3, 12, 19, 0.94), rgba(3, 12, 19, 0.84));
  color: rgba(244, 252, 255, 0.96);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-decoration: none;
  text-shadow:
    0 1px 0 rgba(0, 0, 0, 0.95),
    0 0 10px rgba(0, 0, 0, 0.65);
  box-shadow:
    0 16px 36px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(255, 255, 255, 0.02);
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}

.watermark:hover {
  color: rgba(223, 252, 255, 0.95);
  border-color: rgba(87, 255, 214, 0.32);
  background: rgba(7, 27, 39, 0.82);
}

.menu-toggle {
  position: absolute;
  left: 50%;
  bottom: 22px;
  z-index: 7;
  transform: translateX(-50%);
  border-radius: 999px;
  padding: 12px 20px 12px 14px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}

.menu-toggle-ring {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: conic-gradient(from 180deg, color-mix(in srgb, var(--accent) 18%, rgba(20,157,255,0.08) 82%), color-mix(in srgb, var(--accent) 92%, rgba(255,255,255,0) 8%), color-mix(in srgb, var(--accent) 18%, rgba(20,157,255,0.08) 82%));
  position: relative;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 24%, rgba(255,255,255,0) 76%);
}

.menu-toggle-ring::after {
  content: "";
  position: absolute;
  inset: 7px;
  border-radius: 50%;
  background: #04141d;
}

.menu-toggle-label {
  font-weight: 700;
  letter-spacing: 0.04em;
}

.menu-panel {
  position: absolute;
  left: 50%;
  bottom: 88px;
  z-index: 7;
  width: min(960px, calc(100vw - 28px));
  transform: translateX(-50%) translateY(24px);
  opacity: 0;
  pointer-events: none;
  padding: 18px;
  border-radius: 24px;
  border: 1px solid var(--panel-border);
  background: rgba(4, 15, 23, 0.88);
  box-shadow: var(--shadow);
  transition: opacity .2s ease, transform .2s ease;
}

.menu-panel.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.menu-panel.floating {
  transform: translateY(24px);
}

.menu-panel.floating.open {
  transform: translateY(0);
}

.menu-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
  cursor: grab;
  user-select: none;
  touch-action: none;
}

.menu-header:active {
  cursor: grabbing;
}

.menu-header h2 {
  margin: 4px 0 0;
  font-size: 28px;
}

.menu-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-header-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-decoration: none;
  white-space: nowrap;
}

.menu-header-link:hover,
.menu-header-link:focus-visible {
  color: #ffffff;
}

.menu-close {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  font-size: 28px;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.vehicles-layout {
  grid-template-columns: minmax(0, 1.45fr) minmax(220px, 0.8fr);
  align-items: start;
}

.menu-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 14px;
}

.menu-tab {
  border-radius: 12px;
  padding: 12px 10px;
  border: 1px solid rgba(71, 184, 214, 0.22);
  background: var(--panel-strong);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.menu-tab.active {
  background: linear-gradient(135deg, rgba(45, 255, 211, 0.18), rgba(20, 157, 255, 0.22));
  border-color: rgba(45, 255, 211, 0.4);
}

.menu-body {
  max-height: min(70vh, 680px);
  overflow-y: auto;
  padding-right: 4px;
}

.menu-view {
  display: none;
}

.menu-view.active {
  display: block;
}

.menu-card {
  padding: 16px;
  border-radius: 18px;
  border: 1px solid rgba(84, 214, 255, 0.14);
  background: rgba(8, 22, 31, 0.82);
}

.menu-card-title {
  margin-bottom: 12px;
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.field-group-title {
  margin-top: 14px;
  margin-bottom: 4px;
  color: rgba(182, 243, 255, 0.84);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.custom-color-panel {
  margin-top: 12px;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid rgba(84, 214, 255, 0.14);
  background: rgba(3, 16, 24, 0.64);
}

.custom-color-toggle {
  width: 100%;
}

.custom-color-body {
  display: none;
  margin-top: 8px;
}

.custom-color-body.open {
  display: block;
}

.custom-color-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 8px;
  align-items: end;
}

.misc-row {
  margin-top: 12px;
}

.misc-row:first-of-type {
  margin-top: 0;
}

.vehicle-tight-row {
  margin-top: 8px;
}

.vehicle-tight-row + .vehicle-tight-row {
  margin-top: 6px;
}

.airplane-color-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  align-items: end;
}

.airplane-color-grid > .vehicle-color-field {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
}

.airplane-color-grid > .vehicle-color-field span {
  min-height: 26px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.vehicle-preview-card {
  min-width: 100%;
  padding: 16px 14px;
  border-radius: 14px;
  border: 1px solid var(--panel-border);
  background: var(--panel-soft);
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
  justify-content: center;
  min-height: 188px;
}

.vehicle-preview-body {
  position: relative;
  width: 196px;
  height: 108px;
  display: grid;
  place-items: center;
}

.vehicle-preview-image,
.vehicle-preview-dot-mark {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.vehicle-preview-image {
  display: none;
  object-fit: contain;
  filter: drop-shadow(0 0 14px rgba(45, 255, 211, 0.18));
}

.vehicle-preview-image-car {
  width: 148px;
  height: 74px;
}

.vehicle-preview-image-render {
  width: 176px;
  height: 90px;
}

.vehicle-preview-dot-mark {
  display: none;
  width: 14px;
  height: 14px;
  border-radius: 999px;
  background: var(--vehicle-dot-preview, #ffffff);
  box-shadow: 0 0 14px color-mix(in srgb, var(--vehicle-dot-preview, #ffffff) 55%, transparent);
}

.vehicle-preview-car .vehicle-preview-image-car {
  display: block;
}

.vehicle-preview-render .vehicle-preview-image-render {
  display: block;
}

.vehicle-preview-dot .vehicle-preview-dot-mark {
  display: block;
}

.vehicle-preview-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-align: center;
  margin-top: -2px;
}

.vehicle-preview-name {
  font-size: 15px;
  font-weight: 700;
  color: var(--text);
}

.vehicle-preview-sub {
  font-size: 12px;
  color: var(--muted);
}

.vehicle-preview-side {
  min-height: 100%;
}

.vehicle-preview-colors {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
  margin-top: 12px;
}

.vehicle-color-field {
  margin-top: 0;
  align-items: center;
}

.airplane-route-color-field {
  margin-top: 4px;
  align-items: flex-start;
}

.airplane-route-color-field span {
  text-align: left;
}

.airplane-route-color-field .color-box {
  width: auto !important;
  min-width: 0;
  max-width: none;
  min-height: 0;
  padding: 0;
  border: 0 !important;
  background: transparent !important;
  box-shadow: none;
}

.vehicle-color-field span {
  font-size: 11px;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  text-align: center;
}

.vehicle-color-field input[type="color"] {
  width: 84px !important;
  min-width: 84px;
  max-width: 84px;
  min-height: 42px;
}

.vehicle-dot-color-field {
  margin-top: 12px;
  align-items: center;
}

.vehicle-dot-color-field span {
  font-size: 11px;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.vehicle-dot-color-field input[type="color"] {
  width: 84px !important;
  min-width: 84px;
  max-width: 84px;
  min-height: 42px;
}

#vehicle-dot-color-wrap {
  display: none;
}

#vehicle-dot-color-wrap.open {
  display: flex;
}

#vehicle-car-color-wrap {
  display: none;
}

#vehicle-car-color-wrap.open {
  display: flex;
}

.misc-check {
  margin-top: 0;
}

.settings-action-row {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.misc-slider {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--accent);
}

.compact-field {
  margin-top: 2px;
}

.compact-field span {
  font-size: 12px;
}

.color-field input[type="color"] {
  width: 84px !important;
  min-width: 84px;
  max-width: 84px;
  min-height: 48px;
  padding: 6px;
  border: 1px solid rgba(45, 255, 211, 0.38);
  background: rgba(3, 18, 26, 0.96);
  box-shadow: inset 0 0 0 1px rgba(7, 34, 45, 0.9);
}

.color-box {
  width: 84px !important;
  min-width: 84px;
  max-width: 84px;
  min-height: 48px;
  padding: 6px;
  border: 1px solid rgba(45, 255, 211, 0.38) !important;
  background: rgba(3, 18, 26, 0.96) !important;
  box-shadow: inset 0 0 0 1px rgba(7, 34, 45, 0.9);
}

.field,
.check-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
  color: var(--muted);
}

.field input,
.field select {
  width: 100%;
  border: 1px solid rgba(109, 178, 196, 0.22);
  background: rgba(2, 13, 18, 0.9);
  color: var(--text);
  border-radius: 12px;
  padding: 11px 12px;
}

.field input[type="range"] {
  padding: 0;
  border: 0;
  background: transparent;
  accent-color: var(--accent);
}

#partner-color {
  min-height: 48px;
  padding: 6px;
  border: 1px solid rgba(45, 255, 211, 0.38);
  background: rgba(3, 18, 26, 0.96);
  box-shadow: inset 0 0 0 1px rgba(7, 34, 45, 0.9);
}

.color-compact {
  width: 84px !important;
  min-width: 84px;
  max-width: 84px;
}

.check-field {
  flex-direction: row;
  align-items: center;
  gap: 12px;
  pointer-events: none;
}

.check-field input {
  appearance: none;
  -webkit-appearance: none;
  width: 50px;
  min-width: 50px;
  height: 28px;
  margin: 0;
  border-radius: 999px;
  border: 1px solid rgba(109, 178, 196, 0.22);
  background: rgba(6, 18, 28, 0.96);
  box-shadow: inset 0 0 0 1px rgba(7, 34, 45, 0.9);
  position: relative;
  cursor: pointer;
  pointer-events: auto;
  transition: background .2s ease, border-color .2s ease, box-shadow .2s ease;
}

.check-field span {
  pointer-events: none;
}

.check-field input::before {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: linear-gradient(180deg, #effcff, #cfefff);
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.28),
    inset 0 1px 1px rgba(255, 255, 255, 0.55);
  transition: transform .22s ease, background .18s ease, box-shadow .18s ease;
}

.check-field input:checked {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 28%, rgba(255,255,255,0) 72%), color-mix(in srgb, var(--accent) 46%, rgba(20,157,255,0.28) 54%));
  border-color: color-mix(in srgb, var(--accent) 46%, rgba(255,255,255,0) 54%);
  box-shadow:
    inset 0 0 0 1px color-mix(in srgb, var(--accent) 14%, rgba(255,255,255,0) 86%),
    0 0 12px color-mix(in srgb, var(--accent) 12%, rgba(255,255,255,0) 88%),
    0 0 20px color-mix(in srgb, var(--accent) 10%, rgba(255,255,255,0) 90%);
}

.check-field input:checked::before {
  transform: translateX(22px);
  background: #ffffff;
  box-shadow:
    0 2px 10px rgba(0, 0, 0, 0.3),
    0 0 8px rgba(255, 255, 255, 0.35);
}

.check-field input:focus-visible {
  outline: 2px solid rgba(45, 255, 211, 0.42);
  outline-offset: 2px;
}

.toggle-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.segmented,
.primary-action {
  border-radius: 12px;
  padding: 12px 14px;
  font-weight: 700;
}

.segmented.active,
.primary-action {
  background: linear-gradient(135deg, rgba(45, 255, 211, 0.18), rgba(20, 157, 255, 0.22));
  border-color: rgba(45, 255, 211, 0.4);
}

.primary-action {
  width: 100%;
}

.settings-action-button {
  flex: 1 1 0;
  width: auto;
  min-height: 40px;
  padding: 9px 12px;
  font-size: 12px;
}

#import-settings-file {
  display: none;
}

.intro-screen {
  position: absolute;
  inset: 0;
  z-index: 6;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  background: radial-gradient(circle at center, rgba(12, 47, 60, 0.75), rgba(2, 9, 14, 0.97) 58%);
  transition: opacity .45s ease, visibility .45s ease;
}

.intro-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: none;
}

.intro-radar {
  position: relative;
  width: min(44vw, 420px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid rgba(76, 255, 211, 0.28);
  background:
    radial-gradient(circle at center, rgba(45,255,211,.12), rgba(0,0,0,0) 58%),
    radial-gradient(circle at center, rgba(8,18,26,.96), rgba(2,8,12,.98));
  box-shadow: 0 0 120px rgba(0, 255, 200, 0.08), inset 0 0 100px rgba(45, 255, 211, 0.06);
  overflow: hidden;
}

.intro-grid,
.intro-ring,
.intro-sweep {
  position: absolute;
  inset: 0;
}

.intro-grid {
  background:
    linear-gradient(rgba(73, 217, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(73, 217, 255, 0.08) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.18;
}

.intro-ring {
  border-radius: 50%;
  border: 1px solid rgba(45,255,211,.16);
}

.ring-a { inset: 14%; }
.ring-b { inset: 28%; }
.ring-c { inset: 42%; }

.intro-sweep {
  background: conic-gradient(from 0deg, rgba(45,255,211,0.28), rgba(45,255,211,0.02) 14%, transparent 28%);
  transform-origin: 50% 50%;
  animation: sweep 4.4s linear infinite;
}

.intro-blip {
  position: absolute;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: center center / contain no-repeat url('/static/media/icons/favicon.ico');
  filter: drop-shadow(0 0 12px rgba(45,255,211,.5));
  animation: blip 2.6s ease-in-out infinite;
}

.blip-a { top: 24%; left: 61%; }
.blip-b { top: 56%; left: 30%; animation-delay: .8s; }
.blip-c { top: 69%; left: 68%; animation-delay: 1.4s; }

.intro-logo {
  position: absolute;
  inset: 50% auto auto 50%;
  transform: translate(-50%, -50%);
  width: 74px;
  height: 74px;
}

.intro-copy {
  max-width: 380px;
}

.intro-copy h1 {
  margin: 10px 0 12px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1;
}

@keyframes sweep {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes blip {
  0%, 100% { opacity: .45; transform: scale(.85); }
  35% { opacity: 1; transform: scale(1.05); }
}

@keyframes blink {
  50% { opacity: .2; }
}

@keyframes pulse-warning {
  0%, 100% {
    transform: translateY(0);
    box-shadow:
      0 0 0 1px rgba(255, 184, 77, 0.18),
      0 0 14px rgba(255, 184, 77, 0.18),
      0 0 24px rgba(255, 122, 0, 0.10);
  }
  50% {
    transform: translateY(-1px);
    box-shadow:
      0 0 0 1px rgba(255, 184, 77, 0.32),
      0 0 22px rgba(255, 184, 77, 0.30),
      0 0 40px rgba(255, 122, 0, 0.18);
  }
}

@media (max-width: 900px) {
  .intro-screen {
    flex-direction: column;
    gap: 24px;
    padding: 32px 18px;
    text-align: center;
  }

  .intro-radar {
    width: min(72vw, 360px);
  }

  .hud-top {
    flex-direction: column;
  }

  .menu-grid {
    grid-template-columns: 1fr;
  }

  .vehicles-layout {
    grid-template-columns: 1fr;
  }

  .menu-tabs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .menu-panel {
    width: calc(100vw - 18px);
    bottom: 80px;
    left: 9px !important;
  }
}