/* ============================================================
   CO-PILOT FIDGET MK IV — 1970s retro-future spy vehicle HUD
   Green phosphor CRT aesthetic
   ============================================================ */

:root {
  /* green phosphor primary — red reserved for danger states */
  --red: #46ff86;
  --red-hot: #9cffc1;
  --red-dim: #1d9e4f;
  --red-faint: #0b4a24;
  --amber: #ffb300;
  --cyan: #2ee6ff;
  --green: #3aff7a;
  --danger: #ff4a32;
  --bg: #000701;
  --panel-bg: rgba(3, 30, 13, 0.6);
  --glow: 0 0 4px rgba(70, 255, 134, 1), 0 0 12px rgba(70, 255, 134, 0.8), 0 0 28px rgba(70, 255, 134, 0.4);
  --glow-cyan: 0 0 6px rgba(46, 230, 255, 0.9), 0 0 18px rgba(46, 230, 255, 0.4);
  --glow-green: 0 0 6px rgba(58, 255, 122, 0.9), 0 0 18px rgba(58, 255, 122, 0.4);
  --glow-amber: 0 0 6px rgba(255, 179, 0, 0.9), 0 0 18px rgba(255, 179, 0, 0.4);
  --font: "Courier New", "Courier", monospace;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* 7-segment alarm-clock font for numeric displays */
@font-face {
  font-family: "DSEG7";
  src: url("https://cdn.jsdelivr.net/npm/dseg@0.46.0/fonts/DSEG7-Classic/DSEG7Classic-Bold.woff2") format("woff2");
  font-display: swap;
}
.dseg { font-family: "DSEG7", "Courier New", monospace; }

html, body {
  height: 100%;
  background: #000;
  overflow: hidden;
}

body {
  font-family: var(--font);
  color: var(--red);
  text-shadow: var(--glow);
  user-select: none;
  -webkit-user-select: none;
}

/* ---------------- CRT shell ---------------- */
.crt {
  position: relative;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  background:
    repeating-linear-gradient(to right, rgba(70,255,134,0.07) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(to bottom, rgba(70,255,134,0.07) 0 1px, transparent 1px 44px),
    radial-gradient(ellipse at center, #03200c 0%, var(--bg) 78%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.scanlines {
  pointer-events: none;
  position: absolute; inset: 0; z-index: 90;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0px, rgba(0,0,0,0) 2px,
    rgba(0,0,0,0.14) 3px, rgba(0,0,0,0.14) 4px
  );
  mix-blend-mode: multiply;
}

.vignette {
  pointer-events: none;
  position: absolute; inset: 0; z-index: 91;
  background: radial-gradient(ellipse at center,
    rgba(0,0,0,0) 62%, rgba(0,0,0,0.35) 100%);
}

.flicker {
  pointer-events: none;
  position: absolute; inset: 0; z-index: 92;
  background: rgba(70, 255, 140, 0.03);
  animation: flick 4s infinite steps(1);
}
@keyframes flick {
  0%, 100% { opacity: .4; } 7% { opacity: .9; } 8% { opacity: .3; }
  31% { opacity: .7; } 32% { opacity: .35; } 77% { opacity: .8; } 78% { opacity: .4; }
}

/* ---------------- Screens ---------------- */
.screen {
  display: none;
  flex: 1;
  min-height: 0;
  flex-direction: column;
  padding: 12px 18px 18px;
  position: relative;
  z-index: 10;
}
.screen.active { display: flex; animation: screenIn .34s ease-out; }
.hidden { display: none !important; }

/* CRT power-on wipe between pages */
@keyframes screenIn {
  0%   { opacity: 0; transform: scaleY(0.04); filter: brightness(3.2) saturate(.4); }
  45%  { opacity: 1; transform: scaleY(1.02); filter: brightness(1.7); }
  100% { transform: scaleY(1); filter: brightness(1); }
}

/* staggered panel entrance */
.screen.active .panel { animation: panelIn .4s ease-out backwards; }
.screen.active .panel:nth-child(1) { animation-delay: .05s; }
.screen.active .panel:nth-child(2) { animation-delay: .12s; }
.screen.active .panel:nth-child(3) { animation-delay: .19s; }
.screen.active .panel:nth-child(4) { animation-delay: .26s; }
.screen.active .panel:nth-child(5) { animation-delay: .33s; }
@keyframes panelIn {
  from { opacity: 0; transform: translateY(12px); }
}

/* ---------------- Header ---------------- */
header {
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 4px 16px;
  padding: 8px 18px;
  border-bottom: 2px solid var(--red-dim);
  background: linear-gradient(to bottom, rgba(6,45,20,.5), rgba(1,18,8,.5));
  font-size: 13px;
  letter-spacing: 2px;
}
.hdr-label { margin-left: 10px; }
.hdr-mid { color: var(--red-hot); letter-spacing: 4px; }
.clock-small { font-size: 15px; letter-spacing: 1px; }

.lamp {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--red-faint);
  border: 1px solid var(--red-dim);
  margin-right: 5px;
  vertical-align: middle;
}
.lamp-on { background: var(--red); box-shadow: var(--glow); animation: lampPulse 2.4s infinite; }
@keyframes lampPulse {
  50% { box-shadow: 0 0 3px rgba(70,255,134,.5); }
}
.lamp-amber { background: var(--amber); box-shadow: 0 0 8px var(--amber); }
.lamp-green { background: var(--green); box-shadow: 0 0 8px var(--green); }

/* ---------------- Panels ---------------- */
.panel {
  border: 2px solid var(--red-dim);
  background: var(--panel-bg);
  padding: 12px;
  position: relative;
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 16px 100%, 0 calc(100% - 16px));
}
.panel-title {
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--red-hot);
  text-shadow: var(--glow);
  border-bottom: 1px solid var(--red-faint);
  padding-bottom: 6px;
  margin-bottom: 10px;
}

/* ---------------- Buttons ---------------- */
.btn {
  font-family: var(--font);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #ccffdd;
  text-shadow: var(--glow);
  background: linear-gradient(to bottom, rgba(10,70,30,.6), rgba(3,28,12,.8));
  border: 2px solid var(--red-dim);
  border-top-color: var(--red);
  padding: 10px 16px;
  cursor: pointer;
  transition: background .1s, transform .05s;
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}
.btn:hover:not(:disabled) {
  background: linear-gradient(to bottom, rgba(20,120,55,.7), rgba(6,50,22,.9));
  color: #fff;
  box-shadow: 0 0 16px rgba(70,255,134,.55), inset 0 0 10px rgba(70,255,134,.25);
}
.btn:active:not(:disabled) { transform: translateY(2px); }
.btn.pressed { animation: btnFlash .32s ease-out; }
@keyframes btnFlash {
  0% { filter: brightness(2.4); box-shadow: 0 0 28px rgba(110,255,170,.95); }
}

/* shine sweep across nav + big buttons */
.nav-btn, .btn-big, .btn-wide, .msl-fire {
  position: relative;
  overflow: hidden;
}
.nav-btn::after, .btn-big::after, .btn-wide::after, .msl-fire::after {
  content: "";
  position: absolute; top: 0; left: -70%;
  width: 45%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,.22), transparent);
  transform: skewX(-20deg);
  transition: left .5s ease;
  pointer-events: none;
}
.nav-btn:hover::after, .btn-big:hover::after, .btn-wide:hover:not(:disabled)::after, .msl-fire:hover:not(:disabled)::after {
  left: 130%;
}
.btn:disabled {
  opacity: .35;
  cursor: not-allowed;
}
.btn-big { font-size: 20px; padding: 16px 34px; }
.btn-wide { width: 100%; }
.btn-back { font-size: 17px; padding: 12px 20px; white-space: nowrap; }
.btn-danger {
  border-color: var(--danger);
  color: #ffd9c9;
  text-shadow: 0 0 6px rgba(255,74,50,.9), 0 0 16px rgba(255,74,50,.5);
  background: linear-gradient(to bottom, rgba(190,20,5,.8), rgba(90,8,2,.9));
}

.blink { animation: blink 1s steps(1) infinite; }
.blink-slow { animation: blink 2.4s steps(1) infinite; }
.blink-fast { animation: blink .35s steps(1) infinite; }
@keyframes blink { 50% { opacity: .15; } }

/* ---------------- Boot screen ---------------- */
#boot { align-items: center; justify-content: center; }
.boot-inner { width: min(760px, 92vw); }
.boot-log {
  font-size: 13px;
  line-height: 1.5;
  letter-spacing: 1px;
  white-space: pre-wrap;
  min-height: 40vh;
}
.boot-title { text-align: center; animation: fadein 1.2s; }
@keyframes fadein { from { opacity: 0; } }
.boot-emblem { font-size: 90px; line-height: 1; color: var(--red-hot); }
.boot-title h1 {
  font-size: clamp(42px, 8vw, 84px);
  letter-spacing: 9px;
  font-weight: 700;
  margin: 10px 0 6px;
  color: var(--red-hot);
}
.boot-title .sub { letter-spacing: 4px; font-size: 13px; margin-bottom: 6px; }
.dim { color: #4bbf74; text-shadow: none; }
#boot-enter { margin-top: 34px; }

/* ---------------- Main grid ---------------- */
.main-grid {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  padding-top: 6px;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
}
.nav-panel { display: flex; flex-direction: column; min-height: 0; }
.radar-panel { flex: 1; display: flex; flex-direction: column; min-height: 0; }

.bigclock {
  font-size: clamp(40px, 7vw, 84px);
  letter-spacing: 5px;
  color: #e9ffef;
  text-align: center;
  padding: 6px 0 2px;
  font-variant-numeric: tabular-nums;
}
.bigclock .ms { font-size: .55em; color: var(--red-hot); }
.clock-sub {
  display: flex; justify-content: space-between;
  font-size: 12px; letter-spacing: 2px; padding: 0 6px 2px;
}

.nav-buttons {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-content: start;
  padding-top: 4px;
}
.nav-btn {
  font-size: clamp(15px, 1.7vw, 22px);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  gap: 10px;
  min-height: 118px;
  padding: 14px 10px;
  line-height: 1.25;
}
.nav-btn .key {
  display: inline-block;
  border: 2px solid currentColor;
  padding: 2px 10px;
  font-size: .85em;
}
.nav-btn[data-goto="weapons"]  { border-left: 5px solid var(--danger); }
.nav-btn[data-goto="intel"]    { border-left: 5px solid var(--amber); }
.nav-btn[data-goto="intel"] .key { color: var(--amber); text-shadow: var(--glow-amber); }
.nav-btn[data-goto="comms"]    { border-left: 5px solid var(--cyan); }
.nav-btn[data-goto="comms"] .key { color: var(--cyan); text-shadow: var(--glow-cyan); }
.nav-btn[data-goto="settings"] { border-left: 5px solid var(--green); }
.nav-btn[data-goto="settings"] .key { color: var(--green); text-shadow: var(--glow-green); }

.readout-strip {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 8px; margin-top: 10px;
  border-top: 1px solid var(--red-faint); padding-top: 8px;
}
.ro { text-align: center; }
.ro-label { display: block; font-size: 10px; letter-spacing: 2px; color: var(--red-hot); text-shadow: none; }
.ro-val { font-size: 17px; color: #e6ffee; }

/* ---------------- Radar ---------------- */
.radar-wrap {
  flex: 1; min-height: 0;
  position: relative;
  display: flex; align-items: center; justify-content: center;
}
#radar {
  max-width: 100%; max-height: 100%;
  aspect-ratio: 1;
}
.radar-corner {
  position: absolute; font-size: 14px; letter-spacing: 2px; color: #2fae5d; text-shadow: none;
}
.radar-corner.tl { top: 4px; left: 4px; }
.radar-corner.tr { top: 4px; right: 4px; color: var(--green); text-shadow: var(--glow-green); }
.radar-corner.bl { bottom: 4px; left: 4px; }
.radar-corner.br { bottom: 4px; right: 4px; color: var(--green); text-shadow: var(--glow-green); }

/* ---------------- Page head ---------------- */
.page-head {
  display: flex; align-items: center; gap: 18px;
  border-bottom: 2px solid var(--red-dim);
  padding-bottom: 10px; margin-bottom: 14px;
}
.page-head h2 {
  font-size: 26px; letter-spacing: 10px; color: var(--red-hot); flex: 1;
}
.page-code { font-size: 12px; letter-spacing: 2px; color: var(--red-dim); text-shadow: none; }

/* ---------------- Weapons ---------------- */
.wpn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  flex: 1;
  min-height: 0;
  align-content: start;
}
.wpn-card { display: flex; flex-direction: column; gap: 12px; }
.wpn-name {
  font-size: 28px; letter-spacing: 5px;
  color: #e9ffef; text-shadow: var(--glow);
  border-bottom: 1px solid var(--red-faint);
  padding-bottom: 8px;
}
.wpn-desc { font-size: 13px; letter-spacing: 1px; color: #7fd99e; text-shadow: none; min-height: 30px; }
.wpn-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.wpn-controls .btn { font-size: 22px; padding: 18px 8px; }

.btn-arm[aria-pressed="true"] {
  background: var(--amber);
  color: #200;
  text-shadow: none;
  border-color: var(--amber);
  box-shadow: 0 0 14px var(--amber);
}
.btn-fire {
  font-size: 17px;
  background: linear-gradient(to bottom, #58120a, #2a0803);
}
.btn-fire.hot {
  background: linear-gradient(to bottom, #ff2a12, #7e1004);
  color: #fff;
  animation: firepulse 1s infinite;
}
@keyframes firepulse {
  50% { box-shadow: 0 0 22px rgba(255,50,20,.9); }
}

.wpn-inv { margin-top: 4px; }
.wpn-inv-row {
  display: flex; justify-content: space-between;
  font-size: 11px; letter-spacing: 2px; margin-bottom: 5px;
}
.inv-bar {
  height: 16px;
  border: 1px solid var(--red-dim);
  background: rgba(0,0,0,.5);
  position: relative;
}
.inv-fill {
  height: 100%;
  background: repeating-linear-gradient(90deg,
    var(--red) 0 6px, rgba(255,60,40,.35) 6px 8px);
  box-shadow: 0 0 10px rgba(255,60,40,.6);
  transition: width .25s;
}
.inv-fill.low { background: repeating-linear-gradient(90deg, var(--amber) 0 6px, rgba(255,176,0,.35) 6px 8px); }

.wpn-status { font-size: 15px; letter-spacing: 2px; min-height: 18px; color: #ffd27a; text-shadow: var(--glow-amber); }

.master-arm-panel { margin-top: 14px; }
.ma-row { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.ma-label { font-size: 22px; letter-spacing: 4px; color: #e9ffef; text-shadow: var(--glow); }
.ma-state { font-size: 22px; letter-spacing: 3px; color: var(--amber); text-shadow: var(--glow-amber); min-width: 76px; }
.ma-note { font-size: 11px; letter-spacing: 1px; }

/* toggle switch */
.toggle-sw {
  width: 104px; height: 44px;
  border: 2px solid var(--red-dim);
  background: rgba(0,0,0,.6);
  cursor: pointer;
  position: relative;
  padding: 0;
}
.toggle-sw .sw-knob {
  position: absolute; top: 3px; left: 3px;
  width: 44px; height: 34px;
  background: linear-gradient(to bottom, #2b5c3c, #10301d);
  border: 1px solid var(--red);
  transition: left .12s;
}
.toggle-sw[aria-pressed="true"] { border-color: var(--green); box-shadow: var(--glow-green); }
.toggle-sw[aria-pressed="true"] .sw-knob {
  left: 53px;
  border-color: var(--green);
  background: linear-gradient(to bottom, #4dff8d, #0f9c44);
}

/* ---------------- Missile tracking ---------------- */
.msl-grid {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 14px;
}
.msl-scope-panel { display: flex; flex-direction: column; min-height: 0; }
.msl-scope-wrap {
  flex: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
}
#lockscope { max-width: 100%; max-height: 100%; }
.msl-side { display: flex; flex-direction: column; gap: 14px; }
.msl-state {
  font-size: 22px;
  letter-spacing: 4px;
  text-align: center;
  color: var(--red-hot);
  padding: 8px 0 12px;
  min-height: 30px;
}
.msl-state.locked { color: #fff; animation: blink .35s steps(1) infinite; }
.msl-state.evaded { color: var(--amber); }
.msl-lockbar-row { display: flex; align-items: center; gap: 8px; }
.msl-lockbar-label { font-size: 9px; letter-spacing: 2px; color: var(--red-dim); text-shadow: none; }
.msl-lockbar { flex: 1; }
.msl-readouts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 8px; padding: 4px 0; }
.msl-fire {
  font-size: 30px;
  letter-spacing: 8px;
  padding: 26px 10px;
}
.msl-hint { font-size: 10px; letter-spacing: 1px; text-align: center; line-height: 1.7; }

@media (max-width: 900px) {
  .msl-grid { grid-template-columns: 1fr; grid-template-rows: minmax(260px, 1fr) auto; }
}

/* ---------------- Intelligence ---------------- */
.intel-grid {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 14px;
}
.intel-list { overflow-y: auto; }
.intel-cat {
  font-size: 17px; letter-spacing: 3px; color: var(--amber);
  margin: 14px 0 8px; text-shadow: var(--glow-amber);
  border-bottom: 1px solid rgba(255,179,0,.25);
  padding-bottom: 4px;
}
.intel-item {
  display: block; width: 100%;
  text-align: left;
  font-family: var(--font);
  font-size: 18px; letter-spacing: 1px;
  color: #dcffe7;
  background: rgba(3,26,11,.5);
  border: 2px solid var(--red-faint);
  padding: 14px 12px; margin-bottom: 8px; cursor: pointer;
  text-shadow: var(--glow);
}
.intel-item:hover { border-color: var(--red); color: #fff; box-shadow: 0 0 12px rgba(70,255,134,.35); }
.intel-item.sel { border-color: var(--amber); background: rgba(90,50,5,.35); color: #ffd27a; box-shadow: 0 0 14px rgba(255,179,0,.35); }
.intel-view { display: flex; flex-direction: column; min-height: 0; }
.intel-text {
  flex: 1;
  overflow-y: auto;
  font-size: 15.5px;
  line-height: 1.7;
  letter-spacing: 1px;
  color: #c9ffdb;
  white-space: pre-wrap;
}
.intel-text::after { content: "▮"; animation: blink .7s steps(1) infinite; }

/* ---------------- Comms ---------------- */
.comms-grid {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 14px;
}
.comms-channel {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  width: 100%;
  font-family: var(--font);
  background: rgba(3,26,11,.5);
  border: 2px solid var(--red-faint);
  color: #a2eebb;
  text-shadow: var(--glow);
  font-size: 15px; letter-spacing: 1px;
  padding: 18px 14px; margin-bottom: 10px;
  cursor: pointer; text-align: left;
}
.comms-channel:hover { border-color: var(--red); box-shadow: 0 0 12px rgba(70,255,134,.35); }
.comms-channel.sel {
  border-color: var(--cyan);
  background: rgba(8,50,60,.4);
  box-shadow: 0 0 16px rgba(46,230,255,.35);
}
.ch-sign { font-size: 22px; font-weight: 700; color: #e9ffef; min-width: 150px; }
.comms-channel.sel .ch-sign { color: var(--cyan); text-shadow: var(--glow-cyan); }
.ch-freq { margin-left: auto; color: var(--amber); text-shadow: var(--glow-amber); font-size: 14px; }

.wave-wrap {
  position: relative;
  border: 1px solid rgba(46,230,255,.45);
  background: rgba(0,10,14,.6);
  margin-bottom: 12px;
}
#wavescope { width: 100%; height: 96px; display: block; }
.wave-label {
  position: absolute; top: 4px; right: 8px;
  font-size: 11px; letter-spacing: 2px;
  color: var(--cyan); text-shadow: var(--glow-cyan);
}

.comms-console { display: flex; flex-direction: column; min-height: 0; }
.freq-row { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.freq-label { font-size: 11px; letter-spacing: 2px; color: var(--red-dim); text-shadow: none; }
.freq-display {
  font-size: 30px; letter-spacing: 3px; color: var(--cyan);
  text-shadow: var(--glow-cyan);
  border: 1px solid rgba(46,230,255,.5); padding: 6px 14px;
  background: rgba(0,20,26,.55);
  flex: 1; text-align: center;
  font-variant-numeric: tabular-nums;
}
.freq-unit { font-size: 13px; margin-left: 10px; letter-spacing: 2px; }
.tx-label { font-size: 10px; letter-spacing: 2px; margin-right: 8px; }

.vu-wrap { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.vu-label { font-size: 10px; letter-spacing: 2px; color: var(--red-dim); text-shadow: none; }
.vu-meter {
  flex: 1; height: 14px;
  border: 1px solid var(--red-dim); background: rgba(0,0,0,.5);
}
.vu-fill {
  height: 100%; width: 4%;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 5px, transparent 5px 7px);
  box-shadow: 0 0 8px rgba(46,230,255,.5);
  transition: width .12s;
}

.comms-log {
  flex: 1; min-height: 0;
  overflow-y: auto;
  border: 1px solid var(--red-faint);
  background: rgba(0,0,0,.4);
  padding: 10px;
  font-size: 13px; line-height: 1.6; letter-spacing: 1px;
  white-space: pre-wrap;
  margin-bottom: 12px;
}
.comms-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ---------------- Settings ---------------- */
.sys-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  align-content: start;
}
.sys-card { display: flex; flex-direction: column; gap: 12px; min-height: 170px; }
.sys-name {
  font-size: 26px; letter-spacing: 3px;
  color: #e9ffef; text-shadow: var(--glow);
  border-bottom: 1px solid var(--red-faint);
  padding-bottom: 8px;
}
.sys-desc { font-size: 12.5px; letter-spacing: 1px; color: #7fd99e; text-shadow: none; flex: 1; }
.sys-state { font-size: 17px; letter-spacing: 2px; color: #d6ffe4; }
.sys-state.on { color: var(--amber); text-shadow: var(--glow-amber); }
.sys-card .toggle-sw { align-self: flex-start; }
.sys-card .btn { font-size: 19px; padding: 16px 14px; }

.guard-wrap { position: relative; align-self: flex-start; }
.guard {
  position: absolute; inset: -6px -6px auto -6px;
  height: 20px;
  background: repeating-linear-gradient(45deg, #7a1c10 0 8px, #200502 8px 16px);
  border: 1px solid var(--red);
  cursor: pointer;
  z-index: 2;
  transition: transform .18s;
  transform-origin: top center;
  font-size: 8px; text-align: center; letter-spacing: 2px; color: #fff; line-height: 18px;
}
.guard.open { transform: rotateX(140deg); }

.sys-status-panel { margin-top: 14px; }
.sys-log { font-size: 13px; letter-spacing: 1px; line-height: 1.6; white-space: pre-wrap; max-height: 110px; overflow-y: auto; }

/* ---------------- Self destruct ---------------- */
.overlay {
  position: fixed; inset: 0; z-index: 200;
  background: rgba(20, 0, 0, .88);
  display: flex; align-items: center; justify-content: center;
  animation: alarmbg .5s infinite;
}
@keyframes alarmbg {
  50% { background: rgba(90, 4, 0, .9); }
}
.destruct-box {
  text-align: center;
  border: 3px solid var(--danger);
  padding: 40px 60px;
  background: rgba(0,0,0,.7);
  clip-path: polygon(0 0, calc(100% - 24px) 0, 100% 24px, 100% 100%, 24px 100%, 0 calc(100% - 24px));
}
.destruct-box h2 { font-size: 26px; letter-spacing: 6px; margin-bottom: 10px; color: var(--danger); text-shadow: 0 0 8px rgba(255,74,50,.9); }
.destruct-count {
  font-size: 130px;
  color: #fff;
  text-shadow: 0 0 30px var(--danger), 0 0 60px var(--danger);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.destruct-box p { letter-spacing: 3px; font-size: 13px; margin: 8px 0 26px; }

/* ---------------- Keypads ---------------- */
/* PIN screen fills the whole display; keys stretch to share the height */
#keycode { align-items: center; justify-content: center; }
.keypad-wrap {
  width: min(560px, 100%);
  height: 100%;
  display: flex;
}
.keypad-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 20px;
}
.keypad-panel .keypad {
  flex: 1;
  grid-auto-rows: 1fr;
}
.keypad-panel .kp-btn {
  display: flex; align-items: center; justify-content: center;
  padding: 0;
  font-size: clamp(30px, 6.5vh, 48px);
}
.keypad-panel .kp-fn { font-size: clamp(17px, 3vh, 24px); }
.code-display {
  font-size: clamp(38px, 9vw, 54px);
  letter-spacing: 8px;
  text-align: center;
  color: #e6ffee;
  text-shadow: var(--glow);
  padding: 16px 0 8px;
  font-variant-numeric: tabular-nums;
}
.code-msg {
  font-size: 13px;
  letter-spacing: 2px;
  text-align: center;
  color: var(--amber);
  text-shadow: var(--glow-amber);
  min-height: 18px;
  margin-bottom: 18px;
}
.keypad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.kp-btn { font-size: 34px; padding: 24px 0; text-align: center; }
.kp-fn { font-size: 19px; color: var(--amber); }
.keypad-sm { gap: 10px; margin-top: 10px; }
.kp2-btn, .kp3-btn { font-size: 30px; padding: 20px 0; text-align: center; }
.kp2-btn.kp-fn, .kp3-btn.kp-fn { font-size: 17px; }
.dial-head {
  font-size: 10px; letter-spacing: 3px; color: var(--red-hot);
  border-top: 1px solid var(--red-faint);
  margin-top: 12px; padding-top: 10px;
}

/* ---------------- Nav coordinates ---------------- */
/* two-phase: keypad view first, then full-screen chart */
.nav-grid {
  flex: 1; min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.nav-entry { display: flex; flex-direction: column; width: min(480px, 94vw); }
#navmap.map-mode .nav-entry { display: none; }
.nav-map-panel { display: none; }
#navmap.map-mode .nav-map-panel {
  display: flex; flex-direction: column; min-height: 0;
  flex: 1; width: 100%;
}
.coord-display { font-size: clamp(26px, 8vw, 40px); letter-spacing: 5px; }
.nav-map-wrap { flex: 1; min-height: 240px; display: flex; }
#mapview { width: 100%; height: 100%; display: block; }
.nav-readouts {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 8px; margin-top: 12px;
  border-top: 1px solid var(--red-faint); padding-top: 10px;
}
.nav-btn[data-goto="navmap"] { border-left: 5px solid #ffffff; }
.nav-btn[data-goto="navmap"] .key { color: #fff; text-shadow: 0 0 8px rgba(255,255,255,.7); }
.nav-btn[data-goto="radarpage"] { border-left: 5px solid var(--green); }
.nav-btn[data-goto="radarpage"] .key { color: var(--green); text-shadow: var(--glow-green); }
.nav-btn[data-goto="systems"] { border-left: 5px solid var(--amber); }
.nav-btn[data-goto="systems"] .key { color: var(--amber); text-shadow: var(--glow-amber); }
#nav-dest-name { color: var(--cyan); text-shadow: var(--glow-cyan); }

/* ---------------- Systems status ---------------- */
.tlm-scroll {
  flex: 1; min-height: 0;
  overflow-y: auto;
  display: flex; flex-direction: column;
  gap: 12px;
}
.gauge-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
}
.gauge-cell { text-align: center; }
.gauge-cell canvas { max-width: 100%; }
.gauge-name {
  font-size: 11px; letter-spacing: 2px; color: var(--red-hot); text-shadow: var(--glow);
}
.gauge-val {
  font-size: 16px; color: #e9ffef; font-variant-numeric: tabular-nums;
}
.digi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}
.digi {
  border: 1px solid var(--red-faint);
  background: rgba(0,0,0,.5);
  padding: 8px 10px;
  text-align: center;
}
.digi-label {
  font-size: 10px; letter-spacing: 2px; color: var(--red-hot); text-shadow: none;
  display: block; margin-bottom: 3px;
}
.digi-val {
  font-family: "DSEG7", "Courier New", monospace;
  font-size: 24px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
  color: var(--green);
  text-shadow: var(--glow-green);
}
.digi-val.amber { color: var(--amber); text-shadow: var(--glow-amber); }
.digi-val.cyan { color: var(--cyan); text-shadow: var(--glow-cyan); }
.digi-val.red { color: var(--danger); text-shadow: 0 0 8px rgba(255,74,50,.9); }
.digi-unit { font-size: 11px; color: var(--red-hot); margin-left: 3px; }
.lvl-grid { display: grid; gap: 10px; }
.lvl-row { display: flex; align-items: center; gap: 10px; }
.lvl-label { font-size: 11px; letter-spacing: 2px; color: var(--red-hot); width: 110px; }
.lvl-bar { flex: 1; height: 16px; border: 1px solid var(--red-dim); background: rgba(0,0,0,.5); }
.lvl-fill {
  height: 100%;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 6px, rgba(46,230,255,.3) 6px 8px);
  box-shadow: 0 0 10px rgba(46,230,255,.5);
  transition: width .4s;
}
.lvl-val { font-size: 14px; color: #e9ffef; width: 52px; text-align: right; font-variant-numeric: tabular-nums; }

/* ---------------- Autopilot telemetry strip ---------------- */
.ap-telemetry-panel { margin-top: 12px; }
.ap-telemetry {
  height: 64px;
  overflow: hidden;
  font-size: 12px;
  line-height: 1.7;
  letter-spacing: 1px;
  color: var(--green);
  text-shadow: var(--glow-green);
  word-break: break-all;
}

/* ---------------- Flight mode ---------------- */
.flight-view-panel { display: flex; flex-direction: column; }
.flight-view-wrap { display: flex; align-items: center; justify-content: center; }
#horizon { max-width: 100%; }
.flight-readouts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.fr {
  border: 1px solid var(--red-faint);
  background: rgba(0,0,0,.5);
  padding: 10px;
  text-align: center;
}
.fr-label { display: block; font-size: 11px; letter-spacing: 2px; color: var(--red-hot); margin-bottom: 4px; }
.fr-val {
  font-size: clamp(30px, 4vw, 44px);
  color: var(--green); text-shadow: var(--glow-green);
  font-variant-numeric: tabular-nums;
}
.fr-val.amber-v { color: var(--amber); text-shadow: var(--glow-amber); }
.fr-val.cyan-v { color: var(--cyan); text-shadow: var(--glow-cyan); }

/* ---------------- Fuel system ---------------- */
.tank-row { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; flex-wrap: wrap; }
.tank-label { font-size: 16px; letter-spacing: 2px; color: #e9ffef; text-shadow: var(--glow); width: 130px; }
.seg-bar { flex: 1; min-width: 160px; display: flex; gap: 3px; height: 30px; }
.seg {
  flex: 1;
  background: rgba(60,12,4,.6);
  border: 1px solid var(--red-faint);
}
.seg.on { background: var(--green); box-shadow: 0 0 8px rgba(58,255,122,.6); border-color: var(--green); }
.seg.on.warn { background: var(--amber); box-shadow: 0 0 8px rgba(255,179,0,.6); border-color: var(--amber); }
.seg.on.crit { background: var(--danger); box-shadow: 0 0 8px rgba(255,74,50,.6); border-color: var(--danger); }
.tank-val { font-size: 22px; width: 120px; text-align: right; color: #e9ffef; }
.tank-pct { font-size: 12px; color: var(--amber); text-shadow: var(--glow-amber); width: 60px; text-align: right; }
.pump-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; margin-bottom: 14px; }
.pump {
  border: 1px solid var(--red-faint); background: rgba(0,0,0,.5);
  padding: 10px; text-align: center;
  font-size: 12px; letter-spacing: 2px; color: #d6ffe4;
}
.pump .lamp { margin: 0 auto 6px; display: block; width: 14px; height: 14px; }
.fuel-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.fuel-sw { display: flex; align-items: center; gap: 12px; }
.fuel-sw-label { font-size: 15px; letter-spacing: 2px; color: #e9ffef; text-shadow: var(--glow); }

/* ---------------- Security ---------------- */
.threat-blocks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.tb {
  padding: 16px 8px; text-align: center;
  font-size: 15px; letter-spacing: 2px;
  border: 2px solid var(--red-faint);
  color: #7a5a4d; text-shadow: none;
  background: rgba(0,0,0,.5);
}
.tb-green.lit { border-color: var(--green); color: var(--green); text-shadow: var(--glow-green); box-shadow: 0 0 16px rgba(58,255,122,.4); }
.tb-amber.lit { border-color: var(--amber); color: var(--amber); text-shadow: var(--glow-amber); box-shadow: 0 0 16px rgba(255,179,0,.4); animation: blink 1s steps(1) infinite; }
.tb-red.lit { border-color: var(--danger); color: #fff; text-shadow: 0 0 8px rgba(255,74,50,.9); box-shadow: 0 0 20px rgba(255,74,50,.6); animation: blink .4s steps(1) infinite; }
.zone-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 10px; }
.zone {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid var(--red-faint); background: rgba(0,0,0,.5);
  padding: 12px 10px;
}
.zone-name { font-size: 13px; letter-spacing: 1px; color: #d6ffe4; flex: 1; }
.zone-stat { font-size: 12px; letter-spacing: 1px; color: var(--green); text-shadow: var(--glow-green); }
.zone.trip .zone-stat { color: var(--amber); text-shadow: var(--glow-amber); }
.zone.alert .zone-stat { color: var(--danger); text-shadow: 0 0 8px rgba(255,74,50,.9); }
.sec-controls { display: flex; align-items: center; gap: 26px; flex-wrap: wrap; }
.cam-row { display: flex; gap: 14px; align-items: center; }
.cam { font-size: 12px; letter-spacing: 1px; color: #d6ffe4; text-align: center; }
.cam .lamp { display: block; margin: 0 auto 4px; }
.sec-log {
  font-size: 13.5px; letter-spacing: 1px; line-height: 1.7;
  white-space: pre-wrap;
  max-height: 160px; overflow-y: auto;
  color: #c9ffdb;
}

/* ---------------- Danger control pages ---------------- */
.danger-wrap {
  flex: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
  overflow-y: auto;
}
.danger-panel {
  width: min(680px, 96vw);
  padding: 26px 28px 24px;
  text-align: center;
}
.hazard-bar {
  height: 20px;
  margin: -26px -28px 18px;
  background: repeating-linear-gradient(45deg, var(--amber) 0 18px, #140800 18px 36px);
  border-bottom: 2px solid var(--amber);
}
.hazard-red {
  background: repeating-linear-gradient(45deg, var(--danger) 0 18px, #140200 18px 36px);
  border-bottom-color: var(--danger);
}
.danger-icon {
  font-size: 66px; line-height: 1.2;
  color: var(--amber); text-shadow: var(--glow-amber);
}
.destruct-panel .danger-icon { color: var(--danger); text-shadow: 0 0 8px rgba(255,74,50,.9); }
.danger-title {
  font-size: 22px; letter-spacing: 4px;
  color: #ffbfa8; text-shadow: 0 0 8px rgba(255,74,50,.7);
  margin: 8px 0 14px;
}
.danger-title.amber-t { color: #ffd27a; text-shadow: var(--glow-amber); }
.danger-text {
  font-size: 13.5px; line-height: 1.9; letter-spacing: 1px;
  color: #eb9a82; white-space: pre-line;
  margin-bottom: 18px;
}
.danger-read {
  font-size: 15px; letter-spacing: 3px; color: var(--red-hot);
  margin-bottom: 22px;
}
.danger-num {
  font-size: 34px; color: var(--amber); text-shadow: var(--glow-amber);
  margin-left: 12px; vertical-align: middle;
}
.red-t { color: var(--danger) !important; text-shadow: 0 0 8px rgba(255,74,50,.9) !important; }
.btn-huge {
  width: 100%;
  font-size: clamp(24px, 3.5vw, 36px);
  letter-spacing: 6px;
  padding: 30px 12px;
  animation: hugePulse 1.6s infinite;
}
@keyframes hugePulse {
  50% { box-shadow: 0 0 26px rgba(255,74,50,.55); }
}
.btn-huge:disabled { animation: none; }
.danger-status {
  margin-top: 16px;
  font-size: 13px; letter-spacing: 2px;
  color: var(--amber); text-shadow: var(--glow-amber);
  min-height: 18px;
}
.btn-hold { touch-action: none; user-select: none; -webkit-user-select: none; }

/* ---------------- Status ticker ---------------- */
#ticker {
  z-index: 10;
  border-top: 2px solid var(--red-dim);
  background: linear-gradient(to top, rgba(6,45,20,.6), rgba(1,18,8,.6));
  padding: 6px 14px;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--amber);
  text-shadow: var(--glow-amber);
  white-space: nowrap;
  overflow: hidden;
  min-height: 28px;
}
#ticker .tick-cursor { animation: blink .6s steps(1) infinite; }

/* ---------------- Autopilot HUD ---------------- */
.ap-grid {
  flex: 1; min-height: 0;
  display: grid;
  grid-template-columns: 1fr 250px;
  gap: 12px;
}
.ap-view-panel { display: flex; flex-direction: column; min-height: 0; }
.ap-view-wrap { flex: 1; min-height: 0; display: flex; align-items: center; justify-content: center; position: relative; }
#apview { max-width: 100%; max-height: 100%; }
.ap-banner {
  position: absolute; top: 10px; left: 50%; transform: translateX(-50%);
  font-size: 13px; letter-spacing: 4px;
  color: var(--green); text-shadow: var(--glow-green);
  border: 1px solid rgba(58,255,122,.5);
  padding: 4px 14px;
  background: rgba(0,20,6,.5);
}
.ap-side { display: flex; flex-direction: column; gap: 12px; min-height: 0; }
.ap-log-panel { flex: 1; display: flex; flex-direction: column; min-height: 96px; overflow: hidden; }
.ap-readouts { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 8px; }
.ap-readouts .ro-val { color: var(--green); text-shadow: var(--glow-green); }
.ap-log {
  flex: 1; min-height: 60px; max-height: 150px;
  overflow-y: auto;
  border: 1px solid var(--red-faint);
  background: rgba(0,0,0,.4);
  padding: 8px;
  font-size: 11.5px; line-height: 1.6; letter-spacing: 1px;
  white-space: pre-wrap;
}
.btn-green {
  color: var(--green);
  text-shadow: var(--glow-green);
  border-color: rgba(58,255,122,.6);
  background: linear-gradient(to bottom, rgba(10,70,30,.6), rgba(3,30,10,.8));
}

/* short phones (iPhone SE class): compress main further so it still fits */
@media (max-width: 600px) and (max-height: 720px) {
  .bigclock { font-size: 6.4vw; }
  .clock-sub { display: none; }
  .nav-btn { padding: 6px 3px; font-size: 3.2vw; gap: 3px; }
  .readout-strip { display: none; }
  .panel-title { padding-bottom: 3px; margin-bottom: 5px; }
}

/* screen shake for fire / big events */
.shake { animation: shake .3s; }
@keyframes shake {
  0%,100% { transform: translate(0,0); }
  20% { transform: translate(-6px, 3px); }
  40% { transform: translate(5px, -4px); }
  60% { transform: translate(-4px, 2px); }
  80% { transform: translate(3px, -2px); }
}

/* scrollbars */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: rgba(0,0,0,.4); }
::-webkit-scrollbar-thumb { background: var(--red-dim); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .wpn-grid { grid-template-columns: 1fr; overflow-y: auto; }
  .intel-grid { grid-template-columns: 1fr; grid-template-rows: auto minmax(320px, 1fr); }
  .intel-list { max-height: 28vh; }
  /* comms: natural stacking so the console is never clipped */
  .comms-grid { display: flex; flex-direction: column; }
  .comms-console { flex: none; }
  .comms-log { flex: none; min-height: 110px; max-height: 180px; }
  .msl-grid { grid-template-columns: 1fr; grid-template-rows: minmax(220px, 1fr) auto; }
  .ap-grid { grid-template-columns: 1fr; grid-template-rows: minmax(220px, 1fr) auto; }
  .screen { overflow-y: auto; }
}

@media (max-width: 600px) {
  .screen { padding: 8px 10px 12px; }
  .hdr-label { display: none; }
  .hdr-mid { font-size: 11px; letter-spacing: 2px; }
  header { padding: 6px 10px; }
  .clock-small { font-size: 13px; }
  .page-head { gap: 10px; padding-bottom: 6px; margin-bottom: 10px; flex-wrap: wrap; }
  .page-head h2 { font-size: 16px; letter-spacing: 4px; }
  .page-code { display: none; }
  .panel { padding: 8px; }
  .panel-title { font-size: 9.5px; letter-spacing: 2px; }
  .btn { font-size: 13px; padding: 9px 10px; letter-spacing: 1px; }
  .btn-big { font-size: 16px; padding: 12px 18px; }
  .btn-back { font-size: 15px; padding: 11px 14px; }
  /* main menu must fit one phone screen — compact tiles, no scrolling */
  .main-grid { gap: 8px; padding-top: 2px; }
  .nav-buttons { gap: 6px; }
  .nav-btn {
    font-size: 3.5vw;
    min-height: 0;
    padding: 9px 4px;
    letter-spacing: 1px;
    gap: 4px;
    line-height: 1.15;
  }
  .nav-btn .key { padding: 1px 6px; font-size: .9em; }
  .bigclock { font-size: 8vw; padding: 2px 0 0; letter-spacing: 2px; }
  .clock-sub { font-size: 9.5px; padding: 0 2px 0; }
  .clock-panel { padding: 8px; }
  .nav-panel { padding: 8px; }
  .readout-strip { margin-top: 6px; padding-top: 6px; }
  .readout-strip .ro-label { font-size: 9px; }
  .bigclock { font-size: 30px; }
  .boot-title h1 { letter-spacing: 8px; }
  .wpn-name { font-size: 23px; letter-spacing: 3px; }
  .wpn-desc { min-height: 0; }
  .wpn-controls .btn { font-size: 20px; padding: 16px 6px; }
  .ma-row { gap: 10px; }
  .ma-label, .ma-state { font-size: 18px; letter-spacing: 2px; }
  .freq-display { font-size: 17px; padding: 3px 8px; }
  .msl-fire { font-size: 22px; padding: 16px 8px; letter-spacing: 5px; }
  .msl-state { font-size: 16px; letter-spacing: 2px; }
  .msl-readouts, .ap-readouts { grid-template-columns: repeat(4, 1fr); gap: 6px 4px; }
  .msl-readouts .ro-val, .ap-readouts .ro-val { font-size: 13px; }
  .sys-card { min-height: 0; }
  .sys-name { font-size: 22px; letter-spacing: 2px; }
  .sys-card .btn { font-size: 17px; padding: 14px 10px; }
  .comms-channel { padding: 15px 10px; }
  .ch-sign { font-size: 19px; min-width: 120px; }
  .intel-item { font-size: 16px; padding: 12px 10px; }
  .destruct-box { padding: 20px 22px; }
  .destruct-box h2 { font-size: 16px; letter-spacing: 2px; }
  .destruct-count { font-size: 80px; }
  .readout-strip .ro-val { font-size: 14px; }
  #ticker { font-size: 10.5px; letter-spacing: 1px; padding: 5px 8px; min-height: 24px; }
  .comms-actions { grid-template-columns: 1fr 1fr; }
  .intel-text { font-size: 12.5px; }
  /* keypads stay BIG on phones — override the compact .btn rule */
  .kp-btn, .kp2-btn, .kp3-btn { font-size: 32px; padding: 20px 0; letter-spacing: 0; }
  .kp-fn, .kp2-btn.kp-fn, .kp3-btn.kp-fn { font-size: 18px; letter-spacing: 1px; }
  .keypad { gap: 10px; }
  .keypad-wrap { width: 94vw; }
  .code-display { font-size: 40px; }
  .btn-huge { font-size: 24px; padding: 22px 8px; letter-spacing: 3px; }
  .danger-title { font-size: 16px; letter-spacing: 2px; }
  .danger-text { font-size: 11.5px; }
}