:root {
  --panel-h: clamp(212px, 29vh, 322px);
  --panel-h-collapsed: clamp(188px, 23vh, 248px);
  --bg-deep: #07131b;
  --bg-mid: #102937;
  --bg-bright: #173b4e;
  --panel-edge: rgba(132, 188, 217, 0.34);
  --panel-edge-soft: rgba(81, 126, 151, 0.28);
  --panel-glow: rgba(74, 198, 255, 0.16);
  --panel-fill: linear-gradient(180deg, rgba(12, 28, 39, 0.94), rgba(7, 15, 21, 0.98));
  --panel-fill-soft: linear-gradient(180deg, rgba(16, 35, 48, 0.9), rgba(9, 18, 26, 0.95));
  --text: #edf7ff;
  --text-dim: #9ec6dd;
  --accent-cyan: #72d7ff;
  --accent-sky: #8ae8ff;
  --accent-amber: #ffcb68;
  --accent-red: #ff6c5d;
  --accent-steel: #273646;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--text);
  font-family: 'Rajdhani', 'Segoe UI', sans-serif;
  background:
    radial-gradient(circle at top, rgba(91, 159, 196, 0.22), transparent 35%),
    radial-gradient(circle at 16% 18%, rgba(255, 201, 106, 0.12), transparent 22%),
    linear-gradient(180deg, #0d2230 0%, #09161f 48%, #050b10 100%);
}

body::before,
body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
}

body::before {
  background:
    linear-gradient(120deg, rgba(255, 255, 255, 0.06), transparent 28%),
    linear-gradient(300deg, rgba(88, 173, 215, 0.06), transparent 22%);
  mix-blend-mode: screen;
}

body::after {
  opacity: 0.06;
  background-image: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.8) 0,
    rgba(255, 255, 255, 0.8) 1px,
    transparent 1px,
    transparent 4px
  );
}

#app {
  height: 100vh;
  display: grid;
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 14px;
  padding: 14px;
}

#top-area {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(133, 187, 212, 0.28);
  border-radius: 26px 26px 20px 20px;
  background:
    radial-gradient(circle at top, rgba(126, 195, 225, 0.09), transparent 30%),
    linear-gradient(180deg, rgba(15, 33, 45, 0.95), rgba(8, 14, 20, 0.98));
  box-shadow:
    0 28px 60px rgba(0, 0, 0, 0.46),
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(3, 9, 13, 0.4);
}

#top-area::before {
  content: '';
  position: absolute;
  inset: 12px;
  border: 1px solid rgba(119, 170, 194, 0.16);
  border-radius: 18px;
  pointer-events: none;
}

#top-area::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 50% -10%, rgba(180, 231, 255, 0.09), transparent 28%),
    linear-gradient(180deg, transparent 70%, rgba(4, 7, 10, 0.26));
}

#game-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

#top-overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  text-align: center;
  white-space: pre-line;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.05rem, 2vw, 1.95rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #f6fbff;
  background: linear-gradient(180deg, rgba(3, 8, 12, 0.04), rgba(3, 8, 12, 0.58));
  text-shadow: 0 0 18px rgba(114, 215, 255, 0.18);
  isolation: isolate;
}

#top-overlay:not(.hidden)::before {
  content: '';
  position: absolute;
  width: min(660px, calc(100vw - 44px));
  max-width: 100%;
  min-height: 124px;
  border-radius: 26px;
  border: 1px solid rgba(145, 204, 229, 0.3);
  background:
    linear-gradient(180deg, rgba(16, 34, 47, 0.92), rgba(7, 14, 22, 0.96)),
    radial-gradient(circle at top, rgba(255, 203, 104, 0.08), transparent 38%);
  box-shadow:
    0 22px 60px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(0, 0, 0, 0.28);
  z-index: -1;
}

#bottom-panel {
  position: relative;
  background: linear-gradient(180deg, rgba(12, 27, 38, 0.92), rgba(8, 15, 22, 0.97));
  border: 1px solid rgba(123, 178, 202, 0.24);
  border-radius: 24px;
  display: grid;
  grid-template-columns: 1.16fr 0.95fr 1.12fr;
  gap: 12px;
  padding: 12px;
  min-height: 0;
  box-shadow:
    0 20px 44px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    inset 0 0 0 1px rgba(5, 10, 15, 0.28);
}

#bottom-panel::before {
  content: '';
  position: absolute;
  left: 20px;
  right: 20px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(130, 196, 226, 0.75), transparent);
}

#hud-left,
#hud-center,
#hud-right {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--panel-edge-soft);
  border-radius: 18px;
  background: var(--panel-fill);
  padding: 12px 12px 10px;
  min-height: 0;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    inset 0 0 0 1px rgba(0, 0, 0, 0.16),
    0 10px 24px rgba(0, 0, 0, 0.18);
}

#hud-left::before,
#hud-center::before,
#hud-right::before {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at top right, rgba(114, 215, 255, 0.12), transparent 26%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 35%);
}

.hud-title {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 10px;
  color: #dbf8ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.24em;
}

.hud-title::before {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 3px;
  background: linear-gradient(135deg, var(--accent-sky), #2f7aa0);
  box-shadow: 0 0 12px rgba(114, 215, 255, 0.35);
}

.hud-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(114, 215, 255, 0.42), transparent);
}

#hud-left {
  display: grid;
  grid-template-rows: auto 1fr;
  align-items: stretch;
  justify-items: center;
}

#minimap-canvas {
  display: block;
  width: auto;
  height: auto;
  justify-self: center;
  align-self: center;
  border: 1px solid rgba(128, 182, 207, 0.34);
  border-radius: 18px;
  background:
    radial-gradient(circle at top, rgba(69, 138, 172, 0.18), transparent 30%),
    #081116;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 12px 24px rgba(0, 0, 0, 0.24);
  image-rendering: pixelated;
}

#hud-center,
#hud-right {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

#flight-bars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  flex: 1;
  min-height: 0;
}

.flight-col {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 7px;
  min-height: 0;
}

.flight-head {
  display: grid;
  place-items: center;
  min-height: 24px;
  border-radius: 12px;
  border: 1px solid rgba(121, 182, 210, 0.2);
  background: linear-gradient(180deg, rgba(27, 57, 74, 0.95), rgba(15, 28, 37, 0.95));
  color: #e6f7ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.flight-track {
  position: relative;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(96, 142, 165, 0.34);
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(67, 90, 104, 0.2), rgba(7, 12, 16, 0.26)),
    linear-gradient(180deg, rgba(8, 18, 24, 0.95), rgba(11, 20, 28, 0.96));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.22);
}

.flight-track.segmented::after {
  content: '';
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to top,
    transparent 0,
    transparent calc((100% / var(--segments)) - 2px),
    rgba(6, 11, 16, 0.92) calc((100% / var(--segments)) - 2px),
    rgba(16, 30, 40, 0.88) calc(100% / var(--segments))
  );
  z-index: 3;
}

.flight-fill {
  position: absolute;
  inset: auto 0 0 0;
  height: 0%;
  z-index: 1;
  box-shadow: inset 0 -10px 18px rgba(0, 0, 0, 0.18);
}

.flight-fill.alt { background: linear-gradient(0deg, #2472d1, #77d7ff); }
.flight-fill.speed { background: linear-gradient(0deg, #f1664c, #ffc15c); }
.flight-fill.fuel { background: linear-gradient(0deg, #bf9631, #ffe47d); }
.flight-fill.time { background: linear-gradient(0deg, #34c684, #8ff3b3); }

.metric-row,
.crates-row {
  display: grid;
  align-items: center;
  gap: 8px;
}

.metric-row {
  grid-template-columns: 72px 1fr auto;
}

.crates-row {
  grid-template-columns: 72px 1fr;
}

.gauge-label {
  color: var(--text-dim);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
}

.continuous-wrap {
  position: relative;
  overflow: hidden;
  height: 16px;
  border: 1px solid rgba(102, 149, 174, 0.28);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(22, 40, 52, 0.94), rgba(8, 16, 22, 0.98));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.16);
}

.continuous-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #59bcff, #6be680);
}

.continuous-fill.wind {
  background: linear-gradient(90deg, #68ccff, #ffd364 60%, #ff6e64);
}

.continuous-fill.plane {
  background: linear-gradient(90deg, #56f0cf, #f9dd62, #ff6666);
}

.crates-icons {
  display: flex;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 14px;
  border: 1px solid rgba(103, 149, 174, 0.2);
  background: rgba(11, 20, 28, 0.82);
}

.crate-icon {
  width: 22px;
  height: 22px;
  opacity: 0;
  transform: translateY(-9px) scale(0.94);
  transition: transform 160ms ease, opacity 160ms ease;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.22));
}

.crate-icon.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.crate-icon.pending .crate-face { fill: #5d7586; }
.crate-icon.collected .crate-face { fill: #ffcb68; }
.crate-icon .crate-edge { stroke: #11202c; stroke-width: 1.6; fill: none; }

.status-pill {
  min-width: 76px;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(122, 175, 199, 0.28);
  background: linear-gradient(180deg, rgba(22, 45, 58, 0.92), rgba(10, 17, 24, 0.95));
  text-align: center;
  color: #e9f8ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.status-pill.alert {
  color: #ffffff;
  border-color: #ffffff;
  animation: blink-alert 0.4s steps(1) infinite;
}

@keyframes blink-alert {
  0% { background: #ce1e1e; }
  50% { background: #ffffff; color: #ce1e1e; border-color: #ce1e1e; }
  100% { background: #ce1e1e; color: #ffffff; border-color: #ffffff; }
}

.stat {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  border-radius: 14px;
  border: 1px solid rgba(100, 145, 168, 0.18);
  background: rgba(12, 21, 30, 0.82);
  font-size: 1rem;
}

#hud-refugees {
  color: var(--accent-amber);
  font-family: 'VT323', monospace;
  font-size: 1.5rem;
  line-height: 1;
}

#hud-split-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.split-cell {
  min-height: 32px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  border: 1px solid rgba(102, 149, 174, 0.22);
  background: linear-gradient(180deg, rgba(22, 43, 55, 0.7), rgba(10, 16, 23, 0.9));
  color: #d7edf8;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

#hud-aircraft-alert:empty::before {
  content: 'Airspace';
  opacity: 0.34;
}

.split-cell.aircraft-alert {
  animation: blink-alert 0.4s steps(1) infinite;
}

.lives-row {
  display: grid;
  grid-template-columns: 58px 1fr;
  align-items: center;
  gap: 8px;
}

.lives-icons {
  display: flex;
  gap: 8px;
  padding: 6px 8px;
  border-radius: 14px;
  border: 1px solid rgba(102, 149, 174, 0.2);
  background: rgba(11, 20, 28, 0.82);
}

.life-icon {
  width: 20px;
  height: 20px;
  opacity: 0.95;
  fill: #ffffff;
  color: #ffffff;
  filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.22));
}

.life-icon.lost {
  opacity: 0.2;
}

#legend {
  margin-top: auto;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(103, 149, 174, 0.18);
  background: rgba(10, 17, 24, 0.86);
  color: #a8cade;
  font-size: 0.84rem;
  line-height: 1.2;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(720px, calc(100vw - 40px));
  padding: 28px 28px 24px;
  border-radius: 28px;
  border: 1px solid rgba(138, 194, 220, 0.28);
  background:
    radial-gradient(circle at top, rgba(255, 203, 104, 0.08), transparent 30%),
    linear-gradient(180deg, rgba(14, 30, 41, 0.94), rgba(7, 13, 20, 0.98));
  box-shadow:
    0 30px 90px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    inset 0 0 0 1px rgba(0, 0, 0, 0.24);
  backdrop-filter: blur(14px);
  overflow: hidden;
  z-index: 20;
}

.modal::before {
  content: '';
  position: absolute;
  inset: 14px;
  border-radius: 20px;
  border: 1px solid rgba(124, 179, 203, 0.18);
  pointer-events: none;
}

.modal::after {
  content: 'Mission Briefing';
  position: absolute;
  top: 18px;
  right: 26px;
  color: rgba(174, 223, 245, 0.75);
  font-family: 'Orbitron', sans-serif;
  font-size: 0.64rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.menu-kicker {
  color: #95d9f5;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.modal h1 {
  margin: 10px 0 8px;
  max-width: 10ch;
  color: #f5fbff;
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(1.95rem, 4vw, 3.5rem);
  line-height: 0.98;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-shadow:
    0 0 24px rgba(114, 215, 255, 0.18),
    0 6px 24px rgba(0, 0, 0, 0.36);
}

.menu-subtitle {
  max-width: 30rem;
  margin-bottom: 14px;
  color: #c2dcea;
  font-size: 1.12rem;
  line-height: 1.15;
}

.menu-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.menu-tag {
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(120, 180, 206, 0.24);
  background: rgba(15, 27, 36, 0.86);
  color: #dff4ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.menu-seed {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid rgba(121, 179, 205, 0.18);
  background: rgba(11, 20, 28, 0.84);
  color: #d7eef8;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.buttons {
  display: flex;
  gap: 12px;
  margin: 18px 0 14px;
}

button,
input {
  font: inherit;
}

button {
  appearance: none;
  border: 1px solid rgba(122, 180, 205, 0.28);
  border-radius: 16px;
  padding: 13px 18px;
  color: #def4ff;
  font-family: 'Orbitron', sans-serif;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  background: linear-gradient(180deg, rgba(25, 54, 71, 0.98), rgba(10, 18, 25, 0.96));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 10px 22px rgba(0, 0, 0, 0.22);
  transition: transform 120ms ease, filter 120ms ease, border-color 120ms ease;
}

button:hover {
  transform: translateY(-1px);
  filter: brightness(1.04);
  border-color: rgba(145, 203, 228, 0.44);
}

button:active {
  transform: translateY(0);
}

#start-btn {
  flex: 1;
  color: #1b1d16;
  border-color: rgba(255, 222, 118, 0.65);
  background: linear-gradient(180deg, #ffe59a, #f4ad45 78%, #d88424);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    0 12px 26px rgba(208, 133, 29, 0.22);
}

#random-btn {
  background: linear-gradient(180deg, rgba(39, 72, 92, 0.98), rgba(11, 19, 27, 0.96));
}

input {
  min-width: 250px;
  width: 100%;
  padding: 11px 13px;
  border: 1px solid rgba(119, 175, 199, 0.22);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(17, 31, 42, 0.94), rgba(9, 16, 23, 0.96));
  color: #f0f9ff;
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(114, 215, 255, 0.75);
  outline-offset: 2px;
}

#menu-note {
  margin: 0;
  padding: 14px 16px;
  border-radius: 18px;
  border: 1px solid rgba(119, 175, 200, 0.16);
  background: linear-gradient(180deg, rgba(13, 23, 31, 0.9), rgba(8, 14, 20, 0.96));
  color: #b2d2e3;
  font-size: 1rem;
  line-height: 1.2;
}

body.debug-heli {
  background: #d6f4fb;
}

body.debug-heli #app {
  grid-template-rows: 1fr;
  gap: 0;
  padding: 0;
}

body.debug-heli #bottom-panel,
body.debug-heli .modal {
  display: none !important;
}

body.debug-heli #top-area {
  height: 100vh;
  border-radius: 0;
  border: 0;
  box-shadow: none;
}

body.debug-heli #top-area::before,
body.debug-heli #top-area::after {
  display: none;
}

body.debug-heli #top-overlay {
  display: block;
  background: none;
  pointer-events: none;
}

body.debug-heli #top-overlay::before {
  display: none;
}

body.debug-heli #top-overlay .debug-card {
  position: absolute;
  left: 24px;
  top: 24px;
  max-width: 420px;
  padding: 14px 16px;
  border: 1px solid rgba(54, 81, 97, 0.2);
  background: rgba(250, 254, 255, 0.84);
  color: #163042;
  box-shadow: 0 18px 40px rgba(65, 114, 135, 0.18);
  backdrop-filter: blur(8px);
}

body.debug-heli #top-overlay .debug-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

body.debug-heli #top-overlay .debug-copy {
  margin-top: 6px;
  font-size: 0.9rem;
  line-height: 1.5;
}

.modal.hidden,
.hidden {
  display: none !important;
}

@media (max-height: 720px) {
  #app {
    gap: 10px;
    padding: 10px;
    grid-template-rows: minmax(0, 1fr) var(--panel-h-collapsed);
  }

  .modal {
    padding: 24px 24px 20px;
  }
}

@media (max-width: 1000px) {
  #app {
    padding: 10px;
    gap: 10px;
  }

  #bottom-panel {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto auto;
  }

  #hud-left {
    min-height: 210px;
  }

  #flight-bars {
    min-height: 150px;
  }

  .modal {
    width: min(720px, calc(100vw - 20px));
    padding: 24px 20px 18px;
  }

  .modal::after {
    right: 18px;
  }
}

@media (max-width: 640px) {
  #app {
    padding: 8px;
    gap: 8px;
  }

  #top-area {
    border-radius: 18px;
  }

  #bottom-panel {
    border-radius: 18px;
    padding: 10px;
  }

  #hud-left,
  #hud-center,
  #hud-right {
    border-radius: 15px;
    padding: 10px;
  }

  .metric-row,
  .crates-row {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .lives-row {
    grid-template-columns: 1fr;
  }

  #hud-split-row {
    grid-template-columns: 1fr;
  }

  .buttons {
    flex-direction: column;
  }

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

  .modal h1 {
    max-width: none;
  }
}