:root {
  --bg: #0f172a;
  --panel: #111827;
  --border: #334155;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --accent: #22d3ee;
  --radius: 16px;
  --maxw: 1200px;
  --gutter: 16px;

  /* Hamburger-Icon */
  --burger-w: clamp(28px, 3.2vw, 36px);
  --burger-h: 4px;
  --burger-gap: 7px;

  /* Sidebar-Breite */
  --sidebar-w: clamp(150px, 24vw, 240px);
}

/* Reset & Base */
* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    "Apple Color Emoji", "Segoe UI Emoji";
  background: radial-gradient(
    1200px 800px at 50% -10%,
    #0b1220 0%,
    var(--bg) 40%,
    #0a0f1c 100%
  );
  color: var(--text);
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* Header */
header {
  position: sticky;
  top: 0;
  z-index: 10;
  padding: 20px var(--gutter) 8px;
  background: transparent;
}
.header-inner {
  width: 100%;
  max-width: var(--maxw);
  padding: 0 var(--gutter);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}
header h1 {
  grid-column: 2;
  margin: 0;
  font-size: clamp(1.4rem, 2.5vw + 0.6rem, 2.2rem);
  letter-spacing: 0.02em;
  font-weight: 700;
  position: relative;
  justify-self: center;
}
header h1::after {
  content: "";
  display: block;
  height: 2px;
  width: 60%;
  margin: 6px auto 0;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.7;
}

/* Hamburger */
.hamburger {
  grid-column: 3;
  justify-self: end;
  position: relative;
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: transform 0.4s ease;
}
.bar1,
.bar2,
.bar3 {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--burger-w);
  height: var(--burger-h);
  background: #fff;
  border-radius: 2px;
  transform-origin: center center;
  transition: transform 0.35s ease, opacity 0.25s ease;
}
.bar1 {
  transform: translate(-50%, calc(-50% - var(--burger-gap)));
}
.bar2 {
  transform: translate(-50%, -50%);
}
.bar3 {
  transform: translate(-50%, calc(-50% + var(--burger-gap)));
}
.hamburger.change .bar1 {
  transform: translate(-50%, -50%) rotate(45deg);
}
.hamburger.change .bar2 {
  opacity: 0;
  transform: translate(-50%, -50%) scaleX(0.6);
}
.hamburger.change .bar3 {
  transform: translate(-50%, -50%) rotate(-45deg);
}
.hamburger.change {
  transform: rotate(180deg);
}

/* Layout */
.layout {
  display: flex;
  gap: 16px;
  padding: 0 var(--gutter) 24px;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  flex: 1;
}

/* Hauptbereich (Globe) */
.left {
  flex: 1 1 0%;
  min-width: 0;
  min-height: 65svh;
  transition: flex 0.6s ease, width 0.6s ease;
}

/* Sidebar – animiertes Ein-/Ausfahren */
.right {
  flex: 0 0 var(--sidebar-w);
  max-width: var(--sidebar-w);
  min-width: 0;
  opacity: 1;
  transform: translateX(0);
  box-shadow: -8px 0 20px rgba(0, 0, 0, 0.35);
  transition:
    max-width 0.6s ease,
    transform 0.6s ease,
    opacity 0.6s ease;
  will-change: max-width, transform, opacity;
}

/* Sidebar eingeklappt - fährt raus und gibt Platz frei */
body.aside-collapsed .right {
  max-width: 0;
  transform: translateX(110%);
  opacity: 0;
  pointer-events: none;
}

/* Globe wächst, wenn Sidebar verschwindet */
body.aside-collapsed .left {
  flex: 1 1 100%;
}

/* Globe-Frame */
.frame {
  position: relative;
  border-radius: var(--radius);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02),
    rgba(255, 255, 255, 0.01)
  );
  display: grid;
  place-items: center;
  padding: 0;
  border: 2px dashed var(--border);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  overflow: hidden;
  min-height: clamp(460px, 60vh, 78vh);
}
#globe-container {
  width: 100%;
  height: 100%;
}

/* Panel (Sidebar) */
.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.panel h2 {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.02em;
}
.panel h2:not(:first-child) {
  margin-top: 16px;
}

/* Form */
.field {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}
label {
  font-size: 0.9rem;
  color: var(--muted);
}
input[type="text"],
textarea {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0b1220;
  color: var(--text);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
textarea {
  resize: vertical;
  min-height: 100px;
}
input[type="text"]::placeholder,
textarea::placeholder {
  color: #718096;
  opacity: 0.9;
}
input[type="text"]:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}
input[type="text"] {
  text-transform: uppercase;
}
.field-error {
  color: #f87171;
  font-size: 0.8rem;
  margin-top: 4px;
}
input.has-error {
  border-color: #f87171;
  box-shadow: 0 0 0 3px rgba(248, 113, 113, 0.15);
}

/* Read-only Inputs */
input[readonly] {
  color: var(--text);
  background: #0b1220;
  border: 1px dashed var(--border);
  cursor: default;
}
input[readonly]:focus {
  border-color: var(--border);
  box-shadow: none;
}

/* 2-Spalten */
.panel .field.field-2col {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}
.panel .field.field-2col > div {
  min-width: 0;
  display: grid;
  grid-template-rows: auto auto;
  gap: 6px;
}
.panel .field.field-2col label {
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-height: 1.2em;
}
.panel .field.field-2col input[type="text"] {
  height: 40px;
}

/* ===== Airport Labels ===== */
.airport-label {
  position: absolute;
  transform: translate(-50%, -120%);
  padding: 2px 6px;
  background: rgba(0, 0, 0, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  line-height: 1.2;
  border-radius: 6px;
  border: 1px solid #fff;
  pointer-events: none;
  white-space: nowrap;
  user-select: none;
  transition: opacity 0.25s ease-in-out;
  z-index: 20;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.75);
}

/* Range-Ring-Airport-Label (konsolidiert) */
.airport-label--range {
  background: rgba(255, 38, 64, 0.9);
  border-color: #fff;
  color: #fff;
  box-shadow: 0 2px 8px rgba(255, 38, 64, 0.4);
  font-weight: 600;
  font-size: 13px;
  text-shadow: 0 0 6px rgba(0, 0, 0, 0.6);
}

/* Inline-Reihe (iOS-Toggle) */
.ios-inline {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Seitenlabels */
.ios-inline-label {
  font-size: 0.9rem;
  color: var(--muted);
  white-space: nowrap;
}

/* iOS-Switch */
.ios-switch {
  position: relative;
  width: 46px;
  height: 26px;
  display: inline-block;
}
.ios-switch input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}
.ios-knob {
  position: absolute;
  inset: 0;
  background: #1e293b;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 0.3s ease, border-color 0.3s ease;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.5);
}
.ios-knob::before {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.35);
}

/* Checked-Zustand */
.ios-switch input:checked + .ios-knob {
  background: var(--accent);
  border-color: var(--accent);
}
.ios-switch input:checked + .ios-knob::before {
  transform: translateX(20px);
}
.ios-switch,
.ios-switch input,
.ios-switch .ios-knob {
  cursor: pointer;
}
.ios-switch input:focus-visible + .ios-knob {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Toggle-Labels (2D/3D) */
.ios-inline:has(#toggle-2d3d:not(:checked)) .ios-inline-label:first-child {
  color: var(--text);
  font-weight: 600;
}
.ios-inline:has(#toggle-2d3d:checked) .ios-inline-label:last-child {
  color: var(--text);
  font-weight: 600;
}

/* Label-Overlay */
.map-labels {
  transition: opacity 0.25s ease;
}