:root {
  --bg: #050b12;
  --panel: rgba(7, 18, 31, 0.78);
  --panel-strong: #091522;
  --border: #263f5e;
  --text: #eaf1ff;
  --text-dim: #8295b0;
  --amber: #ffb020;
  --cyan: #2ce0ff;
  --green: #50e39a;
  --coral: #ff7584;
  --red: #ff5d67;
  --font-display: 'Rajdhani', 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

* { box-sizing: border-box; }

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-display);
  -webkit-tap-highlight-color: transparent;
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

[hidden] {
  display: none !important;
}

.arcade-nav {
  position: relative;
  z-index: 20;
  width: 100%;
  min-height: 76px;
  padding: 0 clamp(18px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid rgba(255, 176, 32, 0.25);
  background: rgba(5, 24, 35, 0.96);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.22);
}

.arcade-brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  white-space: nowrap;
}

.arcade-brand img {
  display: block;
  width: 78px;
  height: auto;
  filter: drop-shadow(0 0 8px rgba(44, 224, 255, 0.25));
}

.arcade-brand strong { color: var(--amber); }

.all-missions {
  min-height: 38px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  border: 1px solid rgba(255, 176, 32, 0.5);
  border-radius: 4px;
  background: rgba(255, 176, 32, 0.08);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.all-missions:hover,
.all-missions:focus-visible {
  color: #161000;
  background: var(--amber);
  box-shadow: 0 0 20px rgba(255, 176, 32, 0.3);
  outline: 0;
}

.app-stage {
  position: relative;
  min-height: calc(100vh - 76px);
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(circle at 40% 20%, rgba(31, 139, 174, 0.14), transparent 31%),
    linear-gradient(180deg, rgba(6, 29, 42, 0.58), transparent 44%),
    var(--bg);
}

.app-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  opacity: 0.18;
  background-image:
    linear-gradient(rgba(44, 224, 255, 0.17) 1px, transparent 1px),
    linear-gradient(90deg, rgba(44, 224, 255, 0.17) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 78% 65% at 50% 34%, black 4%, transparent 79%);
}

.app-stage::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 95px;
  left: 38%;
  width: min(76vw, 860px);
  aspect-ratio: 1;
  transform: translateX(-50%);
  border-radius: 50%;
  opacity: 0.18;
  background:
    repeating-radial-gradient(circle, transparent 0 92px, rgba(44, 224, 255, 0.2) 93px 94px),
    conic-gradient(from 0deg, transparent 0 24.5%, rgba(255, 176, 32, 0.18) 25% 25.3%, transparent 25.5% 49.5%, rgba(44, 224, 255, 0.14) 50% 50.3%, transparent 50.5% 74.5%, rgba(44, 224, 255, 0.14) 75% 75.3%, transparent 75.5%);
  mask-image: radial-gradient(circle, black 0 48%, transparent 74%);
}

.app {
  position: relative;
  z-index: 1;
  width: min(100%, 1560px);
  margin: 0 auto;
  padding: 34px 24px 56px;
}

.app-header { text-align: center; }

.mission-id,
.panel-kicker {
  margin: 0;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.57rem;
  font-weight: 700;
  letter-spacing: 0.15em;
}

.app-header h1 {
  max-width: 820px;
  margin: 8px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--cyan);
  font-size: clamp(1.35rem, 3vw, 1.9rem);
  letter-spacing: 0.11em;
  text-transform: uppercase;
  text-shadow: 0 0 14px rgba(44, 224, 255, 0.32);
}

.brand-hair {
  flex: 1;
  max-width: 95px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(44, 224, 255, 0.48));
}

.brand-hair:last-child {
  background: linear-gradient(90deg, rgba(44, 224, 255, 0.48), transparent);
}

.subtitle {
  margin: 7px 0 0;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.64rem;
  letter-spacing: 0.13em;
}

.trainer-modes {
  width: fit-content;
  margin: 24px auto 22px;
  display: flex;
  gap: 8px;
  padding: 4px;
  border: 1px solid rgba(55, 83, 119, 0.62);
  border-radius: 6px;
  background: rgba(5, 14, 24, 0.72);
}

.mode-btn {
  min-height: 38px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 4px;
  background: transparent;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  cursor: pointer;
}

.mode-btn.active {
  color: #171000;
  border-color: var(--amber);
  background: linear-gradient(180deg, #ffd06b, var(--amber));
  box-shadow: 0 0 15px rgba(255, 176, 32, 0.3);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(330px, 0.92fr) minmax(700px, 1.58fr);
  gap: 22px;
  align-items: start;
}

.workspace.check-layout {
  grid-template-columns: minmax(0, 980px);
  justify-content: center;
}

.workspace.check-layout .receiver-panel {
  width: 100%;
  display: block;
}
.workspace.check-layout .receiver-console { display: block; }

.map-panel,
.receiver-deck,
.concept-strip {
  border: 1px solid rgba(55, 83, 119, 0.66);
  background: var(--panel);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
  backdrop-filter: blur(8px);
}

.map-panel,
.receiver-deck {
  padding: 18px;
}

.receiver-panel {
  display: grid;
  grid-template-columns: minmax(400px, 1.3fr) minmax(280px, 0.82fr);
  align-items: start;
  gap: 16px;
}

.receiver-deck { grid-column: 1; }

.lesson-panel {
  min-width: 0;
  grid-column: 2;
  grid-row: 1 / span 2;
}

.vor-check-panel { grid-column: 1 / -1; }

.receiver-console {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(145px, 0.58fr);
  align-items: stretch;
  gap: 12px;
}

.receiver-console .instrument-wrap {
  grid-column: 1;
  grid-row: 1;
  align-self: stretch;
}

.receiver-console .obs-knob-panel {
  grid-column: 2;
  grid-row: 1;
  align-self: stretch;
  margin-top: 12px;
}

.receiver-console .indication-strip {
  grid-column: 1 / -1;
  grid-row: 2;
}

.receiver-console .practice-obs-control {
  box-sizing: border-box;
  height: 100%;
  padding: 11px 10px 12px;
  display: grid;
  grid-template-rows: auto 1fr;
}
.receiver-console .practice-obs-heading {
  display: grid;
  gap: 5px;
  text-align: center;
}
.receiver-console .practice-obs-heading output { order: -1; }
.receiver-console .practice-obs-heading small { display: none; }
.receiver-console .obs-fine-controls {
  grid-template-columns: 44px minmax(70px, 1fr) 44px;
}

.receiver-console .obs-knob-stage {
  align-content: center;
  margin-top: 0;
}

.panel-topline {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}

.panel-topline h2 {
  margin: 3px 0 0;
  font-size: 1.25rem;
}

.drag-hint,
.signal-light {
  margin: 4px 0 0;
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.09em;
}

.drag-hint { color: var(--coral); }

.signal-light {
  color: var(--green);
}

.signal-light i {
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 9px var(--green);
}

.map-shell {
  position: relative;
  margin-top: 14px;
  overflow: hidden;
  border: 1px solid #294563;
  border-radius: 5px;
  background: #06101b;
  box-shadow: inset 0 0 55px rgba(0, 0, 0, 0.38), 0 0 22px rgba(44, 224, 255, 0.06);
}

#vor-map {
  display: block;
  width: 100%;
  min-height: 430px;
  aspect-ratio: 1 / 1;
  touch-action: none;
  cursor: crosshair;
}

.map-readout {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  pointer-events: none;
}

.map-readout span {
  padding: 5px 7px;
  border: 1px solid #28435f;
  background: rgba(5, 15, 26, 0.9);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.5rem;
  letter-spacing: 0.06em;
}

.map-readout strong { color: var(--text); }

.success-burst {
  position: absolute;
  top: 50%;
  left: 50%;
  min-width: 230px;
  padding: 14px 18px;
  border: 1px solid var(--green);
  background: rgba(5, 22, 26, 0.96);
  color: var(--green);
  text-align: center;
  box-shadow: 0 0 30px rgba(80, 227, 154, 0.3);
  pointer-events: none;
  transform: translate(-50%, -50%);
  animation: capture-pop 4s ease-out forwards;
}

.success-burst strong,
.success-burst span { display: block; }

.success-burst strong {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
}

.success-burst span {
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 0.72rem;
}

@keyframes capture-pop {
  0% { opacity: 0; transform: translate(-50%, -44%) scale(0.88); }
  12%, 88% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
  100% { opacity: 0; transform: translate(-50%, -57%) scale(0.97); }
}

.map-legend {
  margin-top: 11px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 15px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.49rem;
  letter-spacing: 0.05em;
}

.map-legend i {
  display: inline-block;
  width: 16px;
  height: 2px;
  margin-right: 5px;
  vertical-align: middle;
}

.radial-line { background: var(--amber); }
.bearing-line { background: var(--green); }

.map-readout span:first-child strong {
  color: var(--amber);
  text-shadow: 0 0 8px rgba(255, 176, 32, 0.35);
}

.map-readout span:nth-child(2) strong { color: var(--green); }

.instrument-wrap {
  margin-top: 12px;
  display: grid;
  place-items: center;
}

.instrument-wrap.paired-active {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: start;
  gap: 12px;
}

.receiver-unit {
  width: 100%;
  display: grid;
  justify-items: center;
  gap: 7px;
}

.receiver-id {
  min-width: 74px;
  padding: 5px 10px;
  border: 1px solid var(--amber);
  border-radius: 99px;
  color: var(--amber);
  background: rgba(255, 176, 32, 0.08);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-align: center;
}

.instrument-wrap.paired-active .vor-instrument {
  width: min(100%, 245px);
  padding: 12px;
  border-radius: 15px;
}

.vor-instrument {
  position: relative;
  width: min(100%, 310px);
  aspect-ratio: 1;
  padding: 16px;
  border: 2px solid #49515c;
  border-radius: 18px;
  background: linear-gradient(145deg, #303741, #171b20 70%);
  box-shadow: 0 20px 42px rgba(0, 0, 0, 0.4), inset 0 0 0 2px #15191e;
}

.instrument-screw {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #c2cad3, #535b65 56%, #171b20 60%);
}

.instrument-screw.tl { top: 8px; left: 8px; }
.instrument-screw.tr { top: 8px; right: 8px; }
.instrument-screw.bl { bottom: 8px; left: 8px; }
.instrument-screw.br { right: 8px; bottom: 8px; }

.instrument-face {
  --card-rotation: 0deg;
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  border: 2px solid #080b0e;
  border-radius: 50%;
  background:
    radial-gradient(circle, #111923 0 56%, #080d13 57% 72%, #141b24 73% 100%);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.78);
}

.instrument-face::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 10px;
  border: 1px solid #40536a;
  border-radius: 50%;
  pointer-events: none;
}

.compass-rose-ticks {
  position: absolute;
  z-index: 1;
  inset: 10px;
  border-radius: 50%;
  transform: rotate(var(--card-rotation));
  pointer-events: none;
}

.compass-rose-tick {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1px;
  height: 50%;
  margin-left: -0.5px;
  transform: rotate(calc(var(--tick-angle) + 180deg));
  transform-origin: 50% 0;
}

.compass-rose-tick::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 50%;
  width: 1px;
  height: 6px;
  background: #9fb0c4;
  transform: translateX(-50%);
}

.compass-rose-tick.is-medium::after {
  width: 2px;
  height: 10px;
  background: #c3d0df;
}

.compass-rose-tick.is-major::after {
  width: 2px;
  height: 16px;
  background: #f2f7ff;
  box-shadow: 0 0 3px rgba(226, 237, 250, 0.35);
}

.compass-rose-number {
  position: absolute;
  z-index: 2;
  color: #edf4ff;
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 1.05vw, 0.88rem);
  font-weight: 900;
  line-height: 1;
  text-shadow: 0 2px 4px #000;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.compass-rose-number.is-cardinal {
  color: var(--cyan);
  font-size: clamp(0.78rem, 1.18vw, 1rem);
  text-shadow: 0 0 8px rgba(44, 224, 255, 0.35), 0 2px 4px #000;
}

.course-pointer {
  position: absolute;
  z-index: 3;
  left: 50%;
  width: 0;
  height: 0;
  border-right: 8px solid transparent;
  border-left: 8px solid transparent;
  transform: translateX(-50%);
}

.course-pointer.top {
  top: 18%;
  border-right-width: 11px;
  border-bottom: 26px solid var(--cyan);
  border-left-width: 11px;
}

.course-pointer.bottom {
  bottom: 18%;
  border-right-width: 7px;
  border-top: 16px solid var(--cyan);
  border-left-width: 7px;
}

.cdi-scale {
  position: absolute;
  z-index: 3;
  top: 50%;
  left: 50%;
  width: 68%;
  height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transform: translate(-50%, -50%);
}

.cdi-scale::before {
  content: "";
  position: absolute;
  top: 50%;
  left: -8%;
  width: 116%;
  height: 1px;
  background: #62738a;
}

.cdi-scale span {
  position: relative;
  z-index: 1;
  width: 6px;
  height: 6px;
  border: 1px solid #aebdce;
  border-radius: 50%;
  background: #0a1119;
}

.cdi-scale span.center {
  width: 8px;
  height: 8px;
  border-color: var(--amber);
}

.cdi-needle {
  position: absolute;
  z-index: 4;
  top: -20px;
  left: 50%;
  width: 4px;
  height: 128px;
  border-radius: 3px;
  background: #edf4ff;
  box-shadow: 0 0 10px rgba(234, 241, 255, 0.5);
  transform: translateX(-50%);
  transition: transform 0.08s linear;
}

.to-from-flag {
  position: absolute;
  z-index: 3;
  top: 62%;
  right: 25%;
  bottom: auto;
  min-width: 44px;
  padding: 4px 6px;
  border: 1px solid #3b536d;
  border-radius: 3px;
  background: #050a0f;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-align: center;
}

.to-from-flag.from { color: var(--amber); }
.to-from-flag.off { color: var(--red); }

.nav-label {
  position: absolute;
  bottom: 22px;
  left: 50%;
  color: #687b91;
  font-family: var(--font-mono);
  font-size: 0.47rem;
  letter-spacing: 0.12em;
  transform: translateX(-50%);
}

.indication-strip {
  margin-top: 13px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid var(--border);
  background: rgba(4, 13, 23, 0.7);
}

.indication-strip span {
  padding: 8px;
  text-align: center;
}

.indication-strip span + span { border-left: 1px solid var(--border); }

.indication-strip small,
.indication-strip strong {
  display: block;
}

.indication-strip small {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.46rem;
  letter-spacing: 0.09em;
}

.indication-strip strong {
  margin-top: 3px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
}

.obs-knob-panel,
.practice-panel,
.vor-check-panel {
  margin-top: 17px;
}

.control {
  display: block;
}

.control + .control { margin-top: 16px; }

.control > span {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.control strong { font-size: 0.83rem; }

.control output {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
}

.control small {
  display: block;
  margin-top: 1px;
  color: var(--text-dim);
  font-size: 0.67rem;
  line-height: 1.35;
}

.control input[type="range"] {
  --range-color: var(--amber);
  width: 100%;
  height: 4px;
  margin: 11px 0 0;
  appearance: none;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--range-color) var(--range-progress, 0%), #23364f var(--range-progress, 0%));
  outline: none;
}

.control input[type="range"]::-webkit-slider-thumb {
  width: 18px;
  height: 18px;
  appearance: none;
  border: 2px solid #07111d;
  border-radius: 50%;
  background: var(--range-color);
  box-shadow: 0 0 10px rgba(255, 176, 32, 0.45);
  cursor: ew-resize;
}

.control input[type="range"]::-moz-range-thumb {
  width: 15px;
  height: 15px;
  border: 2px solid #07111d;
  border-radius: 50%;
  background: var(--range-color);
  cursor: ew-resize;
}

.obs-control input { --range-color: var(--cyan) !important; }
.heading-control input { --range-color: var(--green) !important; }

.quick-actions {
  margin-top: 16px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 7px;
}

.quick-actions button,
#new-position {
  min-height: 34px;
  padding: 0 8px;
  border: 1px solid rgba(255, 176, 32, 0.45);
  border-radius: 3px;
  background: rgba(255, 176, 32, 0.07);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.51rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
}

.practice-instruction {
  margin: 0 0 15px;
  padding: 10px 12px;
  border-left: 2px solid var(--amber);
  background: rgba(255, 176, 32, 0.06);
  color: #aebbcf;
  font-size: 0.78rem;
  line-height: 1.45;
}

.practice-instruction strong { color: var(--amber); }

.practice-obs-control {
  padding: 13px 15px 15px;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, rgba(20, 39, 61, 0.72), rgba(5, 15, 27, 0.9));
}

.practice-obs-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.practice-obs-heading > span {
  display: grid;
  gap: 4px;
}

.practice-obs-heading strong {
  color: var(--text);
  font-size: 0.74rem;
}

.practice-obs-heading small {
  color: var(--text-dim);
  font-size: 0.61rem;
  line-height: 1.4;
}

.practice-obs-heading output {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 1.12rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.obs-knob-stage {
  display: grid;
  justify-items: center;
  gap: 10px;
  margin-top: 10px;
}

.obs-knob {
  --obs-angle: 0deg;
  position: relative;
  width: 134px;
  height: 134px;
  padding: 0;
  touch-action: none;
  cursor: grab;
  border: 2px solid #426385;
  border-radius: 50%;
  background:
    radial-gradient(circle at 38% 32%, #243a53 0 8%, #111f31 28%, #07111d 68%),
    #07111d;
  box-shadow:
    0 10px 18px rgba(0, 0, 0, 0.34),
    inset 0 3px 5px rgba(255, 255, 255, 0.09),
    inset 0 -8px 14px rgba(0, 0, 0, 0.45),
    0 0 0 5px rgba(8, 24, 40, 0.9);
}

.obs-knob:hover,
.obs-knob:focus-visible {
  border-color: var(--cyan);
  outline: none;
  box-shadow:
    0 10px 18px rgba(0, 0, 0, 0.34),
    inset 0 3px 5px rgba(255, 255, 255, 0.09),
    inset 0 -8px 14px rgba(0, 0, 0, 0.45),
    0 0 0 5px rgba(8, 24, 40, 0.9),
    0 0 18px rgba(44, 224, 255, 0.3);
}

.obs-knob.is-rotating { cursor: grabbing; }

.obs-knob-ticks {
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: repeating-conic-gradient(from -1deg, rgba(202, 220, 242, 0.7) 0 1.25deg, transparent 1.25deg 15deg);
  -webkit-mask: radial-gradient(circle, transparent 0 78%, #000 79% 100%);
  mask: radial-gradient(circle, transparent 0 78%, #000 79% 100%);
  pointer-events: none;
}

.obs-knob-pointer {
  position: absolute;
  inset: 11px;
  border-radius: 50%;
  transform: rotate(var(--obs-angle));
  transition: transform 80ms linear;
  pointer-events: none;
}

.obs-knob.is-rotating .obs-knob-pointer { transition: none; }

.obs-knob-pointer::before {
  content: "";
  position: absolute;
  top: 1px;
  left: 50%;
  width: 4px;
  height: 31px;
  border-radius: 4px;
  background: var(--cyan);
  box-shadow: 0 0 9px rgba(44, 224, 255, 0.65);
  transform: translateX(-50%);
}

.obs-knob-pointer::after {
  content: "";
  position: absolute;
  top: -2px;
  left: 50%;
  border-right: 7px solid transparent;
  border-bottom: 10px solid var(--cyan);
  border-left: 7px solid transparent;
  transform: translateX(-50%);
}

.obs-knob-center {
  position: absolute;
  inset: 38px;
  display: grid;
  place-items: center;
  border: 1px solid #36516d;
  border-radius: 50%;
  color: #b9c8da;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  background: radial-gradient(circle at 38% 32%, #1d3149, #091523 70%);
  box-shadow: inset 0 2px 3px rgba(255, 255, 255, 0.08), 0 3px 7px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

.obs-fine-controls {
  display: grid;
  grid-template-columns: 54px minmax(100px, 1fr) 54px;
  align-items: center;
  width: min(100%, 250px);
  border: 1px solid #2a4662;
  background: #071320;
}

.obs-fine-controls button {
  min-height: 35px;
  border: 0;
  background: linear-gradient(180deg, #14263b, #0a1625);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  cursor: pointer;
}

.obs-fine-controls button:first-child { border-right: 1px solid #2a4662; }
.obs-fine-controls button:last-child { border-left: 1px solid #2a4662; }
.obs-fine-controls button:hover:not(:disabled) { background: rgba(44, 224, 255, 0.14); }

.obs-fine-controls span {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.52rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-align: center;
}

.obs-knob:disabled,
.obs-fine-controls button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.capture-meter { margin-top: 18px; }

.capture-track {
  position: relative;
  height: 8px;
  overflow: hidden;
  border: 1px solid #28425e;
  background:
    linear-gradient(90deg, transparent 49.5%, rgba(80, 227, 154, 0.85) 49.5% 50.5%, transparent 50.5%),
    #091625;
}

.capture-track span {
  position: absolute;
  top: 0;
  left: 50%;
  width: 10px;
  height: 100%;
  background: var(--cyan);
  box-shadow: 0 0 12px var(--cyan);
  transform: translateX(-50%);
  transition: left 0.1s;
}

.capture-meter p {
  margin: 7px 0 0;
  color: var(--text-dim);
  font-size: 0.68rem;
  text-align: center;
}

.practice-footer {
  margin-top: 14px;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
  gap: 10px;
}

.practice-stats {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--border);
}

.practice-stats span {
  padding: 7px;
  text-align: center;
}

.practice-stats span + span { border-left: 1px solid var(--border); }

.practice-stats small,
.practice-stats strong { display: block; }

.practice-stats small {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.45rem;
  letter-spacing: 0.08em;
}

.practice-stats strong {
  margin-top: 2px;
  color: var(--cyan);
  font-family: var(--font-mono);
}

.vor-check-panel {
  padding: 13px;
  border: 1px solid var(--border);
  background: rgba(4, 13, 23, 0.72);
}

.checkpoint-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.checkpoint-heading h3 {
  margin: 4px 0 0;
  font-size: 1rem;
}

#new-vor-check {
  min-height: 32px;
  padding: 0 9px;
  border: 1px solid rgba(255, 176, 32, 0.48);
  border-radius: 3px;
  background: rgba(255, 176, 32, 0.08);
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.48rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
}

.vor-check-card {
  overflow: hidden;
  border: 1px solid #315171;
  background: linear-gradient(145deg, rgba(17, 35, 55, 0.92), rgba(5, 15, 26, 0.96));
}

.vor-check-method {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-bottom: 1px solid #294563;
}

.vor-check-method small,
.vor-check-data small {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.45rem;
  letter-spacing: 0.08em;
}

.vor-check-method strong {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-align: right;
}

.vor-check-data {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid #294563;
}

.vor-check-data span {
  min-width: 0;
  padding: 10px 8px;
  text-align: center;
}

.vor-check-data span + span { border-left: 1px solid #294563; }

.vor-check-data small,
.vor-check-data strong { display: block; }

.vor-check-data strong {
  margin-top: 7px;
  overflow-wrap: anywhere;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, 1.15vw, 0.9rem);
  line-height: 1.45;
  letter-spacing: 0.015em;
}

.vor-check-question {
  margin-top: 10px;
  padding: 10px;
  border: 1px solid #294563;
  background: rgba(7, 18, 31, 0.76);
}

.vor-check-question > strong {
  display: block;
  font-size: 0.78rem;
}

.vor-check-options,
.vor-tolerance-options {
  display: grid;
  gap: 8px;
  margin-top: 9px;
}

.vor-check-options { grid-template-columns: repeat(2, 1fr); }
.vor-tolerance-options { grid-template-columns: repeat(3, 1fr); }

.vor-check-choice,
.vor-tolerance-choice {
  min-height: 48px;
  border: 1px solid #315171;
  border-radius: 4px;
  background: linear-gradient(180deg, #13243a, #081522);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  cursor: pointer;
}

.vor-check-choice:hover:not(:disabled),
.vor-check-choice:focus-visible,
.vor-tolerance-choice:hover:not(:disabled),
.vor-tolerance-choice:focus-visible { border-color: var(--cyan); outline: 0; }

.vor-check-choice.selected,
.vor-tolerance-choice.selected {
  border-color: var(--cyan);
  color: var(--cyan);
  background: linear-gradient(180deg, rgba(16, 67, 84, 0.98), rgba(6, 25, 35, 0.98));
  box-shadow: inset 3px 0 0 var(--cyan), 0 0 13px rgba(44, 224, 255, 0.13);
}

.vor-check-choice.correct,
.vor-tolerance-choice.correct {
  border-color: var(--green);
  color: var(--green);
  background: rgba(80, 227, 154, 0.1);
  box-shadow: inset 3px 0 0 var(--green);
}

.vor-check-choice.incorrect,
.vor-tolerance-choice.incorrect {
  border-color: var(--red);
  color: var(--red);
  background: rgba(255, 93, 103, 0.09);
  box-shadow: inset 3px 0 0 var(--red);
}

.checkpoint-instruction {
  margin: 12px 0;
  padding: 10px 11px;
  border-left: 3px solid var(--cyan);
  color: #b4c2d4;
  background: rgba(44, 224, 255, 0.055);
  font-size: 0.74rem;
  line-height: 1.45;
}

.checkpoint-submit {
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 700;
  letter-spacing: 0.07em;
  cursor: pointer;
}

.checkpoint-submit {
  width: 100%;
  min-height: 42px;
  margin-top: 11px;
  border: 1px solid var(--amber);
  background: linear-gradient(180deg, #ffd06b, var(--amber));
  color: #171000;
  font-size: 0.58rem;
}

.checkpoint-submit:disabled {
  border-color: #2b4058;
  background: #101c29;
  color: #60738b;
  cursor: not-allowed;
}

.checkpoint-feedback {
  margin-top: 10px;
  padding: 11px;
  border: 1px solid currentColor;
}

.checkpoint-feedback strong,
.checkpoint-feedback span { display: block; }

.checkpoint-feedback strong {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.07em;
}

.checkpoint-feedback span {
  margin-top: 5px;
  color: #c0cddd;
  font-size: 0.74rem;
  line-height: 1.45;
}

.checkpoint-feedback.correct { color: var(--green); background: rgba(80, 227, 154, 0.07); }
.checkpoint-feedback.incorrect { color: var(--red); background: rgba(255, 93, 103, 0.07); }

.checkpoint-stats {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--border);
}

.checkpoint-stats span { padding: 7px; text-align: center; }
.checkpoint-stats span + span { border-left: 1px solid var(--border); }
.checkpoint-stats small,
.checkpoint-stats strong { display: block; font-family: var(--font-mono); }
.checkpoint-stats small { color: var(--text-dim); font-size: 0.43rem; letter-spacing: 0.08em; }
.checkpoint-stats strong { margin-top: 2px; color: var(--cyan); }

.review-notes {
  margin-top: 22px;
  padding: 18px;
  border: 1px solid var(--border);
  background: rgba(4, 13, 23, 0.78);
}

.review-notes-heading h2 {
  margin: 4px 0 0;
  font-size: 1.15rem;
}

.review-table-wrap {
  margin-top: 14px;
  overflow-x: auto;
  border: 1px solid #294563;
}

.review-notes table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  color: #bdc9d8;
  font-size: 0.75rem;
}

.review-notes th,
.review-notes td {
  padding: 10px 12px;
  border-bottom: 1px solid #294563;
  text-align: left;
}

.review-notes tr:last-child th,
.review-notes tr:last-child td { border-bottom: 0; }

.review-notes thead th {
  color: var(--amber);
  background: rgba(255, 176, 32, 0.07);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.06em;
}

.review-notes tbody th {
  color: var(--text);
  font-weight: 700;
}

.review-notes tbody strong { color: var(--cyan); }

.review-notes > p {
  margin: 11px 0 0;
  color: var(--text-dim);
  font-size: 0.7rem;
  line-height: 1.45;
}

.vor-log-note {
  margin-top: 15px;
  padding: 14px;
  border: 1px solid rgba(255, 176, 32, 0.55);
  border-left: 4px solid var(--amber);
  background: linear-gradient(135deg, rgba(255, 176, 32, 0.08), rgba(7, 18, 31, 0.82));
}

.vor-log-note h3 {
  margin: 4px 0 0;
  font-size: 1rem;
}

.vor-log-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 12px;
  border: 1px solid #35516f;
}

.vor-log-items span {
  min-width: 0;
  padding: 11px 8px;
  text-align: center;
}

.vor-log-items span + span { border-left: 1px solid #35516f; }

.vor-log-items small,
.vor-log-items strong { display: block; }

.vor-log-items small {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.5rem;
}

.vor-log-items strong {
  margin-top: 4px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
}

.vor-log-note > p:last-child {
  margin: 11px 0 0;
  color: #afbdd0;
  font-size: 0.72rem;
}

.vor-log-note > p strong { color: var(--amber); }

.explanation-panel {
  margin-top: 16px;
  padding: 11px 12px;
  border-left: 2px solid var(--cyan);
  background: rgba(6, 16, 27, 0.72);
}

.sensing-lesson {
  margin-top: 0;
  padding: 14px;
  border: 1px solid #2d5876;
  border-left: 4px solid var(--cyan);
  background: linear-gradient(145deg, rgba(13, 40, 57, 0.92), rgba(6, 19, 32, 0.96));
}

.sensing-lesson.reverse {
  border-color: #a75b36;
  border-left-color: var(--amber);
  background: linear-gradient(145deg, rgba(66, 35, 21, 0.76), rgba(18, 20, 27, 0.96));
}

.sensing-heading {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 14px;
}

.sensing-heading h3 {
  margin: 4px 0 0;
  color: var(--text);
  font-size: 1.02rem;
}

.sensing-status {
  padding: 7px 9px;
  border: 1px solid currentColor;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.sensing-lesson.reverse .sensing-status { color: var(--amber); }

.sensing-readout {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid #31516f;
}

.sensing-readout span {
  min-width: 0;
  min-height: 72px;
  padding: 9px;
  display: grid;
  align-content: center;
  text-align: center;
}

.sensing-readout span + span { border-left: 1px solid #31516f; }
.sensing-readout small,
.sensing-readout strong { display: block; }

.sensing-readout small {
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.43rem;
  letter-spacing: 0.08em;
}

.sensing-readout strong {
  margin-top: 5px;
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  line-height: 1.25;
}

#sensing-action-readout {
  min-height: 2.5em;
  white-space: pre-line;
}

.sensing-lesson.reverse .sensing-readout strong { color: var(--amber); }

.sensing-copy {
  min-height: 4.45em;
  margin: 11px 0 0;
  color: #c2cede;
  font-size: 0.78rem;
  line-height: 1.48;
}

.sensing-actions,
.sensing-check > div {
  margin-top: 11px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.sensing-actions button,
.sensing-choice {
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid #3b6388;
  background: linear-gradient(180deg, #11263b, #0a1726);
  color: #dce7f7;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.sensing-actions button:hover,
.sensing-choice:hover { border-color: var(--cyan); }

.station-passage-note {
  margin: 10px 0 0;
  padding: 10px;
  border-left: 3px solid var(--amber);
  background: rgba(255, 176, 32, 0.09);
  color: #e3eaf4;
  font-size: 0.75rem;
  line-height: 1.45;
}

.sensing-check {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid #31516f;
}

.sensing-check > strong {
  color: var(--text);
  font-size: 0.75rem;
}

.sensing-choice.selected { box-shadow: inset 4px 0 0 var(--cyan); }
.sensing-choice.correct {
  border-color: #50e39a;
  background: rgba(19, 78, 65, 0.62);
  color: #65f0ae;
}
.sensing-choice.incorrect {
  border-color: #ff657e;
  background: rgba(86, 24, 39, 0.62);
  color: #ff8fa2;
}

#sensing-feedback {
  min-height: 1.1em;
  margin: 8px 0 0;
  font-size: 0.7rem;
}

#sensing-feedback.correct { color: #65f0ae; }
#sensing-feedback.incorrect { color: #ff8fa2; }

.explanation-panel > p:last-child {
  margin: 7px 0 0;
  color: #aab8cb;
  font-size: 0.76rem;
  line-height: 1.45;
}

.learning-chain {
  margin-top: 9px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: stretch;
  gap: 6px;
}

.learning-chain > span {
  min-width: 0;
  padding: 8px 7px;
  border: 1px solid #294563;
  background: rgba(8, 23, 38, 0.82);
}

.learning-chain > span b,
.learning-chain > span small,
.learning-chain > span strong { display: block; }

.learning-chain > span b {
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 0.48rem;
}

.learning-chain > span small {
  margin-top: 3px;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.39rem;
  letter-spacing: 0.07em;
}

.learning-chain > span strong {
  margin-top: 5px;
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.48rem;
  line-height: 1.3;
}

.learning-chain > i {
  align-self: center;
  color: var(--cyan);
  font-style: normal;
  font-size: 0.72rem;
}

.concept-strip {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.concept-strip article {
  padding: 15px 17px;
}

.concept-strip article + article { border-left: 1px solid var(--border); }

.concept-strip strong {
  color: var(--amber);
  font-family: var(--font-mono);
  font-size: 0.57rem;
  letter-spacing: 0.08em;
}

.concept-strip p {
  margin: 5px 0 0;
  color: var(--text-dim);
  font-size: 0.72rem;
  line-height: 1.4;
}

.app-footer {
  margin-top: 20px;
  padding-top: 13px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(45, 70, 99, 0.55);
  color: #657a97;
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.03em;
}

.app-footer p { margin: 0; }

@media (max-width: 1120px) {
  .app { width: min(100%, 1220px); }

  .workspace {
    grid-template-columns: minmax(0, 1.25fr) minmax(390px, 0.9fr);
  }

  .receiver-panel { display: block; }
  .receiver-console { display: block; }
  .lesson-panel { margin-top: 16px; }
  .sensing-lesson { margin-top: 14px; }
}

@media (max-width: 980px) {
  .workspace { grid-template-columns: 1fr; }
  .map-panel { order: 1; }
  .receiver-panel { order: 2; }
  .app-stage::after { left: 50%; }
  #vor-map { min-height: 390px; }

  .receiver-console {
    display: grid;
    grid-template-columns: minmax(270px, 1fr) minmax(175px, 0.58fr);
    align-items: center;
    gap: 12px;
  }

  .receiver-console .instrument-wrap {
    grid-column: 1;
    grid-row: 1;
  }

  .receiver-console .obs-knob-panel {
    grid-column: 2;
    grid-row: 1;
    margin-top: 12px;
  }

  .receiver-console .indication-strip {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .workspace.check-layout .receiver-console { display: block; }
}

@media (max-width: 620px) {
  .arcade-nav {
    min-height: 68px;
    padding: 0 14px;
  }

  .arcade-brand {
    gap: 8px;
    font-size: 0.61rem;
    letter-spacing: 0.2em;
  }

  .arcade-brand img { width: 58px; }

  .all-missions {
    padding: 0 10px;
    font-size: 0.58rem;
  }

  .app { padding: 22px 10px 42px; }

  .app-header h1 { font-size: 1.12rem; }
  .brand-hair { max-width: 28px; }

  .trainer-modes {
    width: 100%;
    margin: 19px auto 14px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
  }

  .mode-btn {
    width: 100%;
    padding: 0 5px;
    font-size: 0.52rem;
  }

  .map-panel,
  .receiver-deck { padding: 12px; }

  .receiver-panel .panel-topline h2,
  .map-panel .panel-topline h2 { font-size: 1.02rem; }

  .receiver-console {
    display: grid;
    grid-template-columns: minmax(190px, 1fr) minmax(78px, 0.4fr);
    align-items: center;
    gap: 6px;
  }

  .receiver-console .instrument-wrap {
    grid-column: 1;
    grid-row: 1;
  }

  .receiver-console .obs-knob-panel {
    grid-column: 2;
    grid-row: 1;
    margin-top: 8px;
  }

  .receiver-console .indication-strip {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .workspace.check-layout .receiver-console { display: block; }

  .vor-instrument {
    width: min(100%, 218px);
    padding: 10px;
    border-radius: 14px;
  }

  .compass-rose-tick::after { background: #5f7083; }
  .compass-rose-tick.is-medium::after { background: #728297; }
  .compass-rose-tick.is-major::after {
    background: #8999aa;
    box-shadow: none;
  }
  .compass-rose-number {
    font-size: 0.84rem;
    text-shadow: 0 0 5px #06101b, 0 2px 3px #000;
  }
  .compass-rose-number.is-cardinal { font-size: 0.92rem; }

  .to-from-flag {
    top: 62%;
    right: 25%;
    bottom: auto;
    width: 30px;
    min-width: 0;
    padding: 3px 2px;
    font-size: 0;
    line-height: 1;
  }

  .to-from-flag::after {
    content: attr(data-mobile-label);
    font-size: 0.55rem;
  }

  .receiver-console .practice-obs-control { padding: 6px 4px 7px; }
  .receiver-console .practice-obs-heading strong { font-size: 0.52rem; }
  .receiver-console .practice-obs-heading output { font-size: 0.78rem; }
  .receiver-console .obs-knob-stage { gap: 6px; margin-top: 5px; }
  .receiver-console .obs-knob {
    width: 78px;
    height: 78px;
  }
  .receiver-console .obs-knob-center { inset: 22px; font-size: 0.46rem; }
  .receiver-console .obs-knob-pointer { inset: 8px; }
  .receiver-console .obs-knob-pointer::before { height: 18px; }
  .receiver-console .obs-knob-pointer::after {
    border-right-width: 5px;
    border-bottom-width: 8px;
    border-left-width: 5px;
  }
  .receiver-console .obs-fine-controls {
    width: 100%;
    grid-template-columns: 28px minmax(28px, 1fr) 28px;
  }
  .receiver-console .obs-fine-controls button {
    min-height: 29px;
    font-size: 0.5rem;
  }
  .receiver-console .obs-fine-controls span {
    font-size: 0.32rem;
    letter-spacing: 0.03em;
  }

  .instrument-wrap.paired-active {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .instrument-wrap.paired-active .vor-instrument { width: min(100%, 260px); }

  #vor-map {
    min-height: 260px;
    aspect-ratio: 1.12 / 1;
  }

  .map-readout span:nth-child(3) { display: none; }

  .quick-actions { gap: 5px; }
  .quick-actions button { padding: 0 4px; font-size: 0.47rem; }

  .learning-chain {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 5px;
  }

  .learning-chain > i { display: none; }

  .learning-chain > span strong { font-size: 0.56rem; }

  .lesson-panel { margin-top: 12px; }
  .sensing-heading { display: block; }
  .sensing-status {
    display: inline-block;
    margin-top: 10px;
  }
  .sensing-readout { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .sensing-readout span + span {
    border-top: 0;
    border-left: 1px solid #31516f;
  }
  .sensing-readout span { padding: 7px 4px; }
  .sensing-readout small { font-size: 0.35rem; }
  .sensing-readout strong { font-size: 0.52rem; }
  .sensing-copy { font-size: 0.72rem; }
  .sensing-actions,
  .sensing-check > div { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sensing-actions button,
  .sensing-choice {
    min-height: 40px;
    padding: 7px 6px;
    font-size: 0.5rem;
  }

  .vor-check-panel { padding: 10px; }
  .checkpoint-instruction { font-size: 0.78rem; }

  .vor-check-data { grid-template-columns: 1fr; }
  .vor-check-data span { text-align: left; }
  .vor-check-data span + span {
    border-top: 1px solid #294563;
    border-left: 0;
  }

  .vor-check-data strong { font-size: 0.8rem; }

  .vor-tolerance-options { grid-template-columns: 1fr; }

  .review-notes { padding: 13px 10px; }
  .review-notes table { font-size: 0.7rem; }

  .vor-log-items { grid-template-columns: repeat(2, 1fr); }
  .vor-log-items span:nth-child(3) { border-left: 0; }
  .vor-log-items span:nth-child(n + 3) { border-top: 1px solid #35516f; }


  .concept-strip { grid-template-columns: 1fr; }
  .concept-strip article + article {
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .app-footer {
    flex-direction: column;
    gap: 7px;
  }
}

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