/* Flight-director HUD — sparse poster typography over precision linework. */
#hud {
    --hud-shadow: rgba(26,34,42,.72);
    color: var(--cream);
    text-shadow: 0 2px 8px var(--hud-shadow);
}
#hud::before, #hud::after {
    content: "";
    position: absolute;
    top: max(18px, env(safe-area-inset-top));
    width: 28px;
    height: 28px;
    border-top: 1px solid rgba(243,241,231,.35);
}
#hud::before { left: max(18px, env(safe-area-inset-left)); border-left: 1px solid rgba(243,241,231,.35); }
#hud::after { right: max(18px, env(safe-area-inset-right)); border-right: 1px solid rgba(243,241,231,.35); }
.panel {
    width: 272px;
    padding: 0;
    border: 0;
    filter: drop-shadow(0 4px 10px rgba(26,34,42,.18));
}
.panel::before { display: none; }
#flightPanel, #telemetryPanel { top: max(34px, calc(env(safe-area-inset-top) + 16px)); }
#flightPanel { left: max(34px, calc(env(safe-area-inset-left) + 16px)); }
#telemetryPanel { right: max(34px, calc(env(safe-area-inset-right) + 16px)); padding: 0; border: 0; }
.panelHeader {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 24px;
    padding: 0 8px;
    border-top: 2px solid var(--coral);
    color: var(--mint);
    background: linear-gradient(90deg, rgba(26,34,42,.78), rgba(26,34,42,.3) 74%, transparent);
    font-size: 8px;
    font-weight: 900;
    letter-spacing: .22em;
}
.panelHeader span:last-child { color: rgba(243,241,231,.48); letter-spacing: .12em; }
#telemetryPanel .panelHeader {
    border-color: var(--mint);
    background: linear-gradient(270deg, rgba(26,34,42,.78), rgba(26,34,42,.3) 74%, transparent);
}
.primaryReadout {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    min-height: 78px;
    padding: 7px 8px 9px;
    border-bottom: 1px solid rgba(243,241,231,.22);
    background: linear-gradient(100deg, rgba(26,34,42,.58), rgba(26,34,42,.08) 80%, transparent);
}
.primaryReadout .value {
    display: inline-block;
    font-size: 57px;
    font-style: italic;
    line-height: .8;
    letter-spacing: -.07em;
    text-shadow: 4px 4px 0 rgba(255,107,87,.22);
}
.primaryReadout .unit { margin-left: 5px; color: var(--yellow); }
.machTag {
    align-self: center;
    padding: 5px 7px;
    border-left: 2px solid var(--yellow);
    color: var(--yellow);
    background: rgba(26,34,42,.45);
    font-size: 11px;
    font-weight: 900;
}
.metricPair { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; margin-top: 1px; }
.metric {
    position: relative;
    min-height: 61px;
    padding: 8px;
    background: linear-gradient(110deg, rgba(26,34,42,.52), rgba(26,34,42,.1));
}
.metric + .metric { border-left: 1px solid rgba(243,241,231,.18); }
.metric .value { font-size: 28px; line-height: 1.1; text-shadow: 3px 3px 0 rgba(255,107,87,.16); }
.label { color: rgba(120,210,166,.72); font-size: 8px; letter-spacing: .18em; }
.value { color: var(--cream); font-family: "Arial Narrow", Impact, sans-serif; font-weight: 900; }
.unit { color: rgba(255,200,87,.82); font-size: 8px; font-weight: 800; }
.energyReadout { padding: 8px; background: linear-gradient(90deg, rgba(26,34,42,.58), transparent); }
.energyLabel { display: flex; justify-content: space-between; margin-bottom: 5px; }
.energyLabel b { color: var(--cream); font-size: 9px; }
.thin { position: relative; height: 5px; margin: 0; overflow: visible; background: repeating-linear-gradient(90deg, rgba(243,241,231,.14) 0 16px, transparent 16px 18px); }
.thin::after { content: ""; position: absolute; inset: -2px 25% -2px auto; width: 1px; background: rgba(243,241,231,.3); }
.thin > i { height: 100%; background: var(--coral); box-shadow: none; transition: width .12s linear; }
#telemetryPanel .thin > i { background: var(--yellow); }
#healthReadout { border-top: 1px solid rgba(243,241,231,.18); }
#healthReadout .thin > i { background: var(--mint); }
#healthReadout[data-state="damaged"] .energyLabel b { color: var(--yellow); }
#healthReadout[data-state="damaged"] .thin > i { background: var(--yellow); }
#healthReadout[data-state="critical"] .energyLabel b { color: var(--coral); }
#healthReadout[data-state="critical"] .thin > i { background: var(--coral); }
#telemetryPanel .telemetryGrid {
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    margin: 1px 0;
    background: transparent;
}
.telemetryCell { min-width: 0; padding: 9px 7px 8px; background: rgba(26,34,42,.5); }
.telemetryCell .value { margin-top: 4px; font-size: 21px; line-height: 1; }
.missionData { display: flex; justify-content: space-between; padding: 8px; border-block: 1px solid rgba(243,241,231,.18); background: linear-gradient(270deg, rgba(26,34,42,.52), transparent); }
.airframeTag { display: flex; justify-content: space-between; padding: 7px 8px; color: rgba(243,241,231,.48); background: linear-gradient(270deg, rgba(26,34,42,.45), transparent); }
.airframeTag b { color: var(--mint); font-size: 8px; }
#headingReadout {
    top: max(19px, env(safe-area-inset-top));
    width: 318px;
    min-width: 0;
    height: 63px;
    padding: 0;
    border: 0;
    color: var(--mint);
    background: linear-gradient(90deg, transparent, rgba(26,34,42,.55) 18%, rgba(26,34,42,.55) 82%, transparent);
    overflow: hidden;
}
#headingReadout::after { bottom: 0; width: 2px; height: 18px; background: var(--coral); }
.headingLegend { position: absolute; left: 19px; top: 7px; font-size: 7px; font-weight: 900; letter-spacing: .2em; }
#headingScale {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 23px;
    height: 9px;
    border-top: 1px solid rgba(243,241,231,.26);
    background: repeating-linear-gradient(90deg, rgba(243,241,231,.55) 0 1px, transparent 1px 12px);
}
.headingValue { position: absolute; left: 50%; bottom: 3px; transform: translateX(-50%); display: flex; align-items: baseline; gap: 7px; }
#heading { margin: 0; color: var(--cream); font: italic 900 22px/1 "Arial Narrow", Impact, sans-serif; letter-spacing: -.02em; text-shadow: 3px 3px 0 rgba(255,107,87,.24); }
#headingCardinal { color: var(--yellow); font-size: 8px; font-weight: 900; }
#centerHud { width: 360px; height: 260px; }
#centerHud::before {
    content: "";
    position: absolute;
    left: 50%;
    top: 9px;
    width: 156px;
    height: 42px;
    transform: translateX(-50%);
    border-top: 1px solid rgba(255,200,87,.48);
    border-radius: 50%;
    clip-path: polygon(0 0, 100% 0, 92% 40%, 8% 40%);
}
#centerHud::after { content: ""; position: absolute; left: 50%; top: 7px; width: 7px; height: 7px; transform: translateX(-50%) rotate(45deg); border: 1px solid var(--coral); }
#horizonClip { width: 310px; height: 196px; opacity: .82; }
#horizon { left: -80px; width: 470px; background: var(--yellow); }
#horizon::before, #horizon::after { border-color: var(--yellow); }
.pitchMark { background: rgba(255,200,87,.65); }
#reticle { width: 88px; height: 32px; border-color: var(--cream); }
#reticle::before, #reticle::after { width: 24px; border-color: var(--cream); }
#reticle::before { left: -23px; }
#reticle::after { right: -23px; }
#reticleDot { width: 6px; height: 6px; bottom: -3px; border: 0; background: var(--coral); box-shadow: 0 0 0 3px rgba(255,200,87,.8), 0 0 12px var(--coral); }
#warning { top: calc(50% + 101px); color: var(--ink); background: var(--yellow); box-shadow: 7px 7px 0 rgba(255,107,87,.38); transition: opacity .15s, transform .15s; }
#warning:not(.active) { transform: translate(-50%, 5px); }
#combatStatus {
    left: auto;
    right: max(34px, calc(env(safe-area-inset-right) + 16px));
    top: max(275px, calc(env(safe-area-inset-top) + 257px));
    width: 410px;
    transform: none;
    justify-content: space-between;
    gap: 5px;
    padding: 8px;
    color: rgba(243,241,231,.56);
    background: rgba(26,34,42,.52);
    clip-path: none;
    border-right: 2px solid var(--coral);
}
#combatStatus span { display: grid; gap: 3px; }
#combatStatus b { color: var(--cream); font-size: 11px; }
#lockState { align-self: center; padding: 5px; color: var(--coral); border: 1px solid currentColor; }
#lockState.locked { color: var(--yellow); background: rgba(255,200,87,.12); }
#combatHint { top: calc(50% + 73px); color: var(--mint); background: rgba(26,34,42,.56); border-bottom: 1px solid currentColor; }
#combatHint.locked { color: var(--yellow); }
#flightState {
    left: max(34px, calc(env(safe-area-inset-left) + 16px));
    bottom: max(29px, calc(env(safe-area-inset-bottom) + 13px));
    transform: none;
    padding: 8px 11px 8px 25px;
    border: 0;
    color: var(--mint);
    background: linear-gradient(90deg, rgba(26,34,42,.72), rgba(26,34,42,.12));
    clip-path: none;
    text-align: left;
}
#flightState::before { content: ""; position: absolute; left: 9px; top: 50%; width: 7px; height: 7px; transform: translateY(-50%) rotate(45deg); background: var(--mint); }
#flightState[data-mode="boost"] { color: var(--yellow); }
#flightState[data-mode="boost"]::before { background: var(--yellow); box-shadow: 0 0 9px var(--yellow); }
#flightState[data-mode="danger"] { color: var(--coral); }
#flightState[data-mode="danger"]::before { background: var(--coral); }
#help { left: auto; right: max(34px, calc(env(safe-area-inset-right) + 16px)); bottom: max(25px, env(safe-area-inset-bottom)); padding: 9px 12px; border: 0; border-bottom: 2px solid var(--yellow); color: rgba(243,241,231,.5); background: linear-gradient(270deg, rgba(26,34,42,.72), transparent); text-align: right; line-height: 2; font-size: 9px; }
#help::before { content: "COMMAND REFERENCE"; margin-bottom: 6px; color: var(--yellow); }
#help .help-cat { color: var(--yellow); font-weight: 900; margin-right: 6px; letter-spacing: .1em; }
#help b { display: inline-block; padding: 1px 5px; margin: 0 1px; border: 1px solid rgba(243,241,231,.3); border-radius: 3px; color: var(--cream); font-weight: 900; background: rgba(26,34,42,.5); }
#overlay { background: linear-gradient(90deg, rgba(26,34,42,.98) 0%, rgba(26,34,42,.92) 37%, rgba(26,34,42,.36) 59%, transparent 78%); }
.card { border-left: 4px solid var(--coral); }
h1 { color: var(--cream); text-shadow: 9px 10px 0 #3a3435, 15px 16px 0 rgba(255,107,87,.3); }
#startButton { clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%); background: var(--coral); box-shadow: 8px 8px 0 rgba(255,200,87,.28); }
#missionMenuButton,
#respawnButton {
    display: none;
    min-width: 220px;
    padding: 15px 22px;
    border: 1px solid var(--mint);
    clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%);
    color: var(--mint);
    background: rgba(26,34,42,.72);
    font: 900 12px Consolas, monospace;
    letter-spacing: .15em;
    cursor: pointer;
    box-shadow: 6px 6px 0 rgba(120,210,166,.16);
}
#missionMenuButton:hover,
#respawnButton:hover { color: var(--ink); background: var(--mint); }
#overlay:not(.intro) #missionMenuButton { display: block; }
#overlay.continue-available #respawnButton { display: block; }
#overlay.continue-available .introLaunchRow { flex-wrap: wrap; }
#overlay.continue-available .introLaunchHint { display: none; }
@media (pointer: coarse), (max-width: 760px) {
    #hud::before, #hud::after { display: none; }
    .panel { width: 250px; }
    #flightPanel, #telemetryPanel { top: max(11px, env(safe-area-inset-top)); }
    #flightPanel { left: max(10px, env(safe-area-inset-left)); transform: scale(.68); }
    #telemetryPanel { right: max(10px, env(safe-area-inset-right)); transform: scale(.68); }
    #headingReadout { top: max(8px, env(safe-area-inset-top)); width: 216px; transform: translateX(-50%) scale(.82); }
    #combatStatus { left: 50%; right: auto; top: max(91px, calc(env(safe-area-inset-top) + 75px)); width: auto; transform: translateX(-50%) scale(.88); border-right: 0; border-bottom: 2px solid var(--coral); }
    #combatStatus span { display: flex; gap: 3px; }
    #combatHint { top: max(145px, calc(env(safe-area-inset-top) + 129px)); }
    #missionDirector { top: max(82px, calc(env(safe-area-inset-top) + 66px)); width: min(430px, 76vw); transform: translateX(-50%) scale(.82); transform-origin: top center; }
    #missionDirector.changed { transform: translateX(-50%) scale(.82) translateY(4px); }
    #styleStatus { bottom: 25%; transform: translateX(-50%) scale(.85); }
    #flightState { left: 50%; bottom: 17%; transform: translateX(-50%); }
    #posterControls { left: 5vw; right: auto; flex-wrap: wrap; }
}
@media (max-width: 430px) {
    #flightPanel, #telemetryPanel { transform: scale(.55); }
    #headingReadout { width: 184px; transform: translateX(-50%) scale(.72); }
    #centerHud { transform: translate(-50%, -50%) scale(.78); }
    #combatStatus { top: max(77px, calc(env(safe-area-inset-top) + 63px)); transform: translateX(-50%) scale(.76); }
    #combatHint { top: max(130px, calc(env(safe-area-inset-top) + 116px)); transform: translateX(-50%) scale(.82); }
    #missionDirector { top: max(67px, calc(env(safe-area-inset-top) + 53px)); width: 92vw; transform: translateX(-50%) scale(.72); }
    #missionDirector.changed { transform: translateX(-50%) scale(.72) translateY(4px); }
}
@media (max-height: 540px) {
    #flightPanel, #telemetryPanel { transform: scale(.52); }
    #combatHint { display: none; }
}

/* Title tableau — the whole mission in one aviation-poster composition. */
body.intro-mode #hud,
body.intro-mode #mobileControls,
body.intro-mode #vignette,
body.intro-mode #speedHaze,
body.intro-mode #damageFlash,
body.intro-mode #sunBloom { opacity: 0; visibility: hidden; }
#overlay.intro {
    align-items: flex-end;
    overflow: hidden;
    padding: max(86px, calc(env(safe-area-inset-top) + 54px)) max(5vw, env(safe-area-inset-right)) max(5vh, env(safe-area-inset-bottom)) max(6vw, env(safe-area-inset-left));
    background:
        radial-gradient(ellipse 48% 78% at 69% 43%, transparent 0 37%, rgba(26,34,42,.22) 72%, rgba(26,34,42,.55) 100%),
        linear-gradient(90deg, rgba(10,18,23,.985) 0%, rgba(17,27,33,.94) 27%, rgba(21,32,38,.43) 53%, rgba(21,32,38,.04) 78%),
        linear-gradient(180deg, rgba(8,16,21,.43) 0%, transparent 35%, transparent 54%, rgba(8,16,21,.86) 100%);
}
#overlay.intro::before {
    content: "";
    position: absolute;
    z-index: 1;
    inset: 0;
    pointer-events: none;
    opacity: .72;
    background:
        linear-gradient(90deg, transparent 0 49.9%, rgba(243,241,231,.13) 50%, transparent 50.1%),
        linear-gradient(0deg, transparent 0 49.88%, rgba(243,241,231,.12) 50%, transparent 50.12%),
        repeating-linear-gradient(90deg, transparent 0 7.95vw, rgba(243,241,231,.055) 8vw, transparent 8.05vw),
        repeating-linear-gradient(0deg, transparent 0 7.95vh, rgba(243,241,231,.045) 8vh, transparent 8.05vh);
    mask-image: linear-gradient(90deg, transparent 0%, black 34%, black 100%);
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, black 34%, black 100%);
}
#overlay.intro::after {
    content: "";
    position: absolute;
    z-index: 1;
    right: 4.5vw;
    bottom: 7.5vh;
    width: min(54vw, 820px);
    height: min(52vw, 720px);
    pointer-events: none;
    border: 1px solid rgba(243,241,231,.2);
    border-left: 0;
    border-bottom: 0;
    clip-path: polygon(26% 0, 100% 0, 100% 78%, 74% 78%, 74% 100%, 0 100%, 0 28%);
    box-shadow: inset 0 0 90px rgba(246,214,165,.06);
}
#overlay.intro .introAtmosphere {
    position: absolute;
    z-index: 1;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}
#overlay.intro .introAtmosphere::before {
    content: "";
    position: absolute;
    top: 7%;
    right: -13%;
    width: min(84vw, 1420px);
    height: min(84vw, 1420px);
    border: 1px solid rgba(246,214,165,.22);
    border-radius: 50%;
    box-shadow: 0 0 0 13vw rgba(246,214,165,.025), 0 0 70px rgba(246,214,165,.14), inset 0 0 90px rgba(246,214,165,.1);
    animation: introSunPulse 7s ease-in-out infinite;
}
#overlay.intro .introAtmosphere::after {
    content: "";
    position: absolute;
    right: -9%;
    bottom: 15%;
    width: min(74vw, 1060px);
    height: 2px;
    transform: rotate(-18deg);
    transform-origin: right center;
    background: linear-gradient(90deg, transparent, rgba(255,245,210,.04) 20%, rgba(255,245,210,.6) 67%, transparent 100%);
    box-shadow: 0 -24px 32px rgba(246,214,165,.12), 0 24px 32px rgba(246,214,165,.1);
    filter: blur(.2px);
    animation: introLightSweep 8s ease-in-out infinite;
}
#overlay.intro .introTargetingFrame {
    position: absolute;
    z-index: 2;
    inset: 0;
    pointer-events: none;
    opacity: .78;
}
#overlay.intro .introFrameCorner {
    position: absolute;
    width: clamp(42px, 5.4vw, 86px);
    height: clamp(42px, 5.4vw, 86px);
    border-color: rgba(243,241,231,.54);
    animation: introFrameBreath 4.5s ease-in-out infinite;
}
#overlay.intro .cornerTL { top: 14%; right: 12.2%; border-top: 1px solid; border-left: 1px solid; }
#overlay.intro .cornerTR { top: 14%; right: 4.2%; border-top: 1px solid; border-right: 1px solid; animation-delay: -.7s; }
#overlay.intro .cornerBL { bottom: 13%; right: 12.2%; border-bottom: 1px solid; border-left: 1px solid; animation-delay: -1.4s; }
#overlay.intro .cornerBR { bottom: 13%; right: 4.2%; border-bottom: 1px solid; border-right: 1px solid; animation-delay: -2.1s; }
#overlay.intro .introFrameLabel {
    position: absolute;
    color: rgba(243,241,231,.62);
    font: 800 8px Consolas, monospace;
    letter-spacing: .17em;
    text-shadow: 0 2px 7px rgba(0,0,0,.7);
}
#overlay.intro .labelRange { top: calc(14% - 17px); right: 4.2%; color: var(--mint); }
#overlay.intro .labelTrack { right: 4.2%; bottom: calc(13% - 17px); color: var(--yellow); }
#overlay.intro .card {
    filter: drop-shadow(0 14px 28px rgba(0,0,0,.18));
}
#overlay.intro .card {
    z-index: 3;
    width: min(700px, 52vw);
    padding: 0 0 2px 27px;
    border-left-width: 5px;
    animation: introCardIn .85s cubic-bezier(.18,.82,.22,1) both;
}
#overlay.intro .card::before {
    content: "MULTI-MISSION  /  AEROSPACE COMMAND";
    margin-bottom: 12px;
    color: var(--mint);
}
#overlay.intro .card::after { content: "SS–01 // INTERCEPTOR"; }
#overlay.intro #missionPanel {
    position: relative;
    max-width: 590px;
    padding: 18px 20px 18px 0;
}
#overlay.intro #missionPanel::before {
    content: "MISSION TERMINAL  //  ONLINE";
    position: absolute;
    right: 0;
    top: 2px;
    padding: 5px 8px;
    border: 1px solid rgba(120,210,166,.46);
    color: var(--mint);
    background: rgba(8,16,21,.54);
    font: 800 7px Consolas, monospace;
    letter-spacing: .16em;
}
#overlay.intro #missionPanel::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 1px;
    width: 42%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--coral), var(--yellow));
}
#overlay.intro #missionSelect {
    padding: 0 12px 11px;
    border: 1px solid rgba(243,241,231,.18);
    border-left: 2px solid var(--mint);
    background: linear-gradient(105deg, rgba(7,15,20,.72), rgba(20,33,40,.28));
    box-shadow: inset 0 1px rgba(255,255,255,.07), 9px 10px 26px rgba(0,0,0,.16);
}
#overlay.intro h1 {
    display: flex;
    align-items: baseline;
    font-size: clamp(61px, 7.9vw, 120px);
    line-height: .72;
    white-space: nowrap;
    text-shadow: none;
}
#overlay.intro h1 span { text-shadow: 7px 8px 0 rgba(9,16,21,.75), 12px 13px 0 rgba(227,78,78,.25); }
#overlay.intro h1 .titleSuper { color: var(--cream); }
#overlay.intro h1 .titleSonic { margin-left: .035em; color: var(--yellow); }
#overlay.intro .subtitle {
    margin: 16px 0 9px;
    color: var(--coral);
    font-size: 10px;
    letter-spacing: .38em;
}
#overlay.intro #overlayText {
    max-width: 550px;
    margin: 0 0 12px;
    padding-left: 12px;
    border-left: 1px solid rgba(243,241,231,.34);
    color: rgba(243,241,231,.76);
    font-size: 12px;
    line-height: 1.5;
}
#overlay.intro #missionSelect { max-width: 560px; margin: 9px 0 12px; }
#overlay.intro .missionSelectHeader {
    padding: 7px 0;
    border-bottom-color: rgba(120,210,166,.5);
    color: var(--mint);
}
#overlay.intro .missionChoice {
    position: relative;
    min-height: 57px;
    padding: 10px 12px 9px;
    border-color: rgba(243,241,231,.24);
    background: linear-gradient(110deg, rgba(8,16,21,.77), rgba(26,34,42,.38));
    transition: transform .16s ease, border-color .16s ease, background .16s ease, box-shadow .16s ease;
    animation: introChoiceIn .55s cubic-bezier(.18,.82,.22,1) both;
}
#overlay.intro .missionChoice:nth-child(2) { animation-delay: .08s; }
#overlay.intro .missionChoice:nth-child(3) { animation-delay: .16s; }
#overlay.intro .missionChoice:nth-child(4) { animation-delay: .24s; }
#overlay.intro .missionChoice::before {
    content: "";
    position: absolute;
    left: -1px;
    top: 11px;
    bottom: 11px;
    width: 2px;
    background: rgba(120,210,166,.55);
}
#overlay.intro .missionChoice:hover,
#overlay.intro .missionChoice:focus-visible {
    transform: translateY(-2px);
    outline: 0;
    border-color: var(--mint);
    color: var(--cream);
    background: rgba(31,52,57,.8);
    box-shadow: 4px 5px 0 rgba(120,210,166,.16);
}
#overlay.intro .missionChoice.selected {
    border-color: var(--yellow);
    color: var(--ink);
    background: linear-gradient(110deg, #ffc857, #f3c26d);
    box-shadow: 5px 6px 0 rgba(232,65,65,.34), 0 0 22px rgba(255,200,87,.16);
    animation: introSelectedPulse 3s ease-in-out infinite;
}
#overlay.intro .missionChoice.selected::before { background: var(--coral); }
#overlay.intro .missionChoice.selected b { color: var(--ink); }
.introOnly { display: none; }
#overlay.intro .introOnly { display: block; }
.introTopline {
    position: absolute;
    z-index: 3;
    left: max(6vw, env(safe-area-inset-left));
    right: max(5vw, env(safe-area-inset-right));
    top: max(24px, env(safe-area-inset-top));
    display: flex !important;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 2px solid var(--coral);
    color: var(--cream);
    font: 800 9px Consolas, monospace;
    letter-spacing: .2em;
}
.introTopline::after {
    content: "";
    width: 88px;
    height: 1px;
    margin-left: 14px;
    background: repeating-linear-gradient(90deg, var(--mint) 0 3px, transparent 3px 7px);
}
.introTopline b { margin-right: 9px; color: var(--mint); font-weight: 900; }
.introTopline span:last-child { margin-left: auto; color: var(--yellow); }
.introAircraftData {
    position: absolute;
    z-index: 3;
    right: max(5vw, env(safe-area-inset-right));
    top: 16%;
    width: 212px;
    padding: 13px 0 12px;
    border-block: 1px solid rgba(243,241,231,.32);
    color: rgba(243,241,231,.63);
    font: 800 8px/1.9 Consolas, monospace;
    letter-spacing: .14em;
    text-align: right;
    text-shadow: 0 2px 8px rgba(0,0,0,.5);
}
.introAircraftData::before { content: "AIRFRAME"; float: left; color: var(--mint); }
.introAircraftData b { display: block; margin: 2px 0 4px; color: var(--cream); font: italic 900 34px/1 "Arial Narrow", Impact, sans-serif; letter-spacing: -.03em; }
.introAircraftData strong { color: var(--coral); }
.introMissionRoute {
    position: relative;
    max-width: 560px;
    margin: 13px 0 14px;
    padding: 9px 12px 10px;
    border: 1px solid rgba(243,241,231,.18);
    border-right: 2px solid rgba(255,200,87,.7);
    background: linear-gradient(90deg, rgba(8,16,21,.5), transparent);
}
.introMissionRoute::before { content: "FLIGHT PLAN"; display: block; margin-bottom: 9px; color: var(--mint); font: 900 8px Consolas, monospace; letter-spacing: .22em; }
.introRoutePhases { display: grid; grid-template-columns: repeat(6, 1fr); }
.introRoutePhases span { position: relative; padding-top: 12px; color: rgba(243,241,231,.61); font: 800 8px Consolas, monospace; letter-spacing: .08em; }
.introRoutePhases span::before { content: ""; position: absolute; z-index: 2; left: 0; top: 0; width: 7px; height: 7px; transform: rotate(45deg); border: 1px solid var(--mint); background: var(--ink); }
.introRoutePhases span::after { content: ""; position: absolute; left: 7px; right: -7px; top: 3px; height: 1px; background: rgba(120,210,166,.36); }
.introRoutePhases span:last-child::after { display: none; }
.introRoutePhases span:nth-child(2)::before { border-color: var(--coral); }
.introRoutePhases span:nth-child(4)::before { border-color: var(--yellow); }
.introRoutePhases span:nth-child(5)::before { border-color: var(--coral); }
#overlay.intro .controls { grid-template-columns: repeat(4, minmax(90px, 1fr)); max-width: 560px; margin: 0 0 18px; border-top-color: rgba(243,241,231,.3); }
#overlay.intro .control { min-height: 48px; padding: 9px 8px 7px 0; font-size: 8px; line-height: 1.35; }
#overlay.intro .control + .control { padding-left: 9px; border-left: 1px solid rgba(243,241,231,.13); }
#overlay.intro .control b { color: var(--yellow); font-size: 9px; }
.introLaunchRow { display: flex !important; align-items: center; gap: 18px; }
#overlay.intro #startButton {
    position: relative;
    min-width: 258px;
    padding-block: 16px;
    overflow: hidden;
    background: linear-gradient(135deg, #e84141, #ff6b57 70%, #ff916f);
    box-shadow: 8px 8px 0 rgba(255,200,87,.3), 0 0 0 1px rgba(255,255,255,.18) inset;
    animation: introLaunchPulse 3.2s ease-in-out infinite;
}
#overlay.intro #startButton::before {
    content: "";
    position: absolute;
    inset: -30% auto -30% -40%;
    width: 24%;
    transform: skewX(-24deg);
    background: rgba(255,255,255,.46);
    animation: introButtonSheen 4.2s ease-in-out infinite;
}
#overlay.intro #startButton::after {
    content: "";
    display: inline-block;
    width: 18px;
    height: 8px;
    margin-left: 12px;
    background: currentColor;
    clip-path: polygon(0 0, 100% 50%, 0 100%, 22% 50%);
}
#overlay.intro #startButton:hover {
    background: linear-gradient(135deg, #ff6b57, #ff916f);
    box-shadow: 11px 11px 0 rgba(255,200,87,.36), 0 0 18px rgba(255,107,87,.22);
}
.introLaunchHint { padding-left: 14px; border-left: 1px solid rgba(120,210,166,.55); color: rgba(243,241,231,.58); font: 800 8px/1.55 Consolas, monospace; letter-spacing: .13em; }
.introFooter {
    position: absolute;
    z-index: 3;
    right: max(5vw, env(safe-area-inset-right));
    bottom: max(7.5vh, calc(env(safe-area-inset-bottom) + 31px));
    color: rgba(243,241,231,.58);
    font: 800 8px Consolas, monospace;
    letter-spacing: .16em;
    text-align: right;
    text-shadow: 0 2px 7px rgba(0,0,0,.45);
}
.introFooter b { display: block; margin-bottom: 5px; color: var(--yellow); font-size: 10px; }
.introCommandStrip {
    position: absolute;
    z-index: 3;
    right: max(5vw, env(safe-area-inset-right));
    bottom: max(3.2vh, env(safe-area-inset-bottom));
    display: flex !important;
    gap: 20px;
    padding-top: 9px;
    border-top: 1px solid rgba(243,241,231,.3);
    color: rgba(243,241,231,.51);
    font: 800 8px Consolas, monospace;
    letter-spacing: .12em;
}
.introCommandStrip span:first-child { color: var(--mint); }
.introCommandStrip i { display: inline-block; width: 6px; height: 6px; margin: 0 7px 1px 0; transform: rotate(45deg); background: var(--mint); box-shadow: 0 0 8px rgba(120,210,166,.75); }
@keyframes introCardIn {
    from { opacity: 0; transform: translate3d(-28px, 12px, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes introChoiceIn {
    from { opacity: 0; transform: translate3d(-14px, 8px, 0); }
    to { opacity: 1; transform: translate3d(0, 0, 0); }
}
@keyframes introSunPulse {
    0%, 100% { transform: scale(.98); opacity: .62; }
    50% { transform: scale(1.025); opacity: 1; }
}
@keyframes introLightSweep {
    0%, 100% { opacity: .3; transform: rotate(-18deg) translateX(-3%); }
    50% { opacity: .9; transform: rotate(-18deg) translateX(3%); }
}
@keyframes introFrameBreath {
    0%, 100% { opacity: .35; transform: scale(.96); }
    50% { opacity: 1; transform: scale(1); }
}
@keyframes introSelectedPulse {
    0%, 100% { box-shadow: 5px 6px 0 rgba(232,65,65,.34), 0 0 18px rgba(255,200,87,.1); }
    50% { box-shadow: 5px 6px 0 rgba(232,65,65,.43), 0 0 28px rgba(255,200,87,.28); }
}
@keyframes introLaunchPulse {
    0%, 100% { transform: translateZ(0); box-shadow: 8px 8px 0 rgba(255,200,87,.3), 0 0 0 1px rgba(255,255,255,.18) inset; }
    50% { transform: translate3d(-1px, -1px, 0); box-shadow: 10px 10px 0 rgba(255,200,87,.36), 0 0 22px rgba(232,65,65,.3), 0 0 0 1px rgba(255,255,255,.24) inset; }
}
@keyframes introButtonSheen {
    0%, 42% { transform: translateX(-160%) skewX(-24deg); }
    62%, 100% { transform: translateX(660%) skewX(-24deg); }
}
@media (prefers-reduced-motion: reduce) {
    #overlay.intro *, #overlay.intro::before, #overlay.intro::after { animation: none !important; }
}
@media (pointer: coarse), (max-width: 760px) {
    #overlay.intro {
        align-items: flex-end;
        padding: max(68px, calc(env(safe-area-inset-top) + 49px)) 20px max(22px, env(safe-area-inset-bottom));
        background: linear-gradient(0deg, rgba(10,18,23,.995) 0%, rgba(17,27,33,.9) 51%, rgba(17,27,33,.08) 83%);
    }
    #overlay.intro::before { opacity: .35; mask-image: none; -webkit-mask-image: none; }
    #overlay.intro::after { right: 5vw; bottom: 34%; width: 72vw; height: 48vw; opacity: .5; }
    #overlay.intro .card { filter: none; }
    #overlay.intro #missionPanel { max-width: none; padding: 10px 0 0; }
    #overlay.intro #missionPanel::before { top: -1px; font-size: 6px; }
    #overlay.intro #missionSelect { padding: 0 8px 7px; }
    #overlay.intro .card { width: 100%; padding-left: 16px; border-left-width: 3px; }
    #overlay.intro .card::before { margin-bottom: 9px; }
    #overlay.intro h1 { font-size: clamp(48px, 16vw, 78px); }
    #overlay.intro .subtitle { margin: 10px 0 9px; font-size: 9px; }
    #overlay.intro #overlayText { display: none; }
    #missionSelect { display: block; margin-block: 6px; }
    .missionSelectHeader { font-size: 7px; }
    #missionList { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px; }
    .missionChoice { padding: 7px 6px; font-size: 7px; }
    .missionChoice b { font-size: 8px; }
    .missionMenuTitle { font-size: 14px; }
    .introTopline { left: 20px; right: 20px; top: max(14px, env(safe-area-inset-top)); font-size: 7px; }
    .introTopline span:first-child { max-width: 58%; }
    .introAircraftData, .introFooter, .introCommandStrip { display: none !important; }
    .introMissionRoute { margin: 8px 0 9px; padding-top: 7px; }
    .introMissionRoute::before { margin-bottom: 7px; }
    .introRoutePhases span { overflow: hidden; font-size: 7px; letter-spacing: 0; }
    #overlay.intro .controls { grid-template-columns: repeat(2, 1fr); margin-bottom: 12px; }
    #overlay.intro .control { min-height: 38px; padding-block: 6px 4px; }
    #overlay.intro .control:nth-child(n+3) { display: none; }
    .introLaunchRow { gap: 10px; }
    #overlay.intro #startButton { min-width: min(230px, 67vw); padding: 13px 17px; }
    #overlay.continue-available #startButton,
    #overlay.continue-available #respawnButton,
    #overlay:not(.intro) #missionMenuButton { min-width: min(230px, 70vw); }
    .introLaunchHint { font-size: 7px; }
}
@media (max-height: 650px) {
    #overlay.intro .card::before, #overlay.intro #overlayText, .missionMenuSubtitle { display: none; }
    #missionSelect { display: block; margin-block: 4px; }
    .missionChoice { padding-block: 6px; }
    #overlay.intro .subtitle { margin-block: 8px; }
    .introMissionRoute { margin-block: 7px; }
    #overlay.intro .controls { margin-bottom: 10px; }
    #overlay.intro .control { min-height: 36px; padding-block: 5px; }
}
@media (max-height: 500px) {
    .introMissionRoute, .missionMenuTitle { display: none !important; }
    #missionList { grid-template-columns: repeat(2, minmax(110px, 1fr)); }
    #overlay.intro .controls { grid-template-columns: repeat(4, 1fr); }
    #overlay.intro .control:nth-child(n) { display: block; }
}

/* --------------------------------------------------------------------------
   Rebuilt title screen — a restrained carrier command interface over the
   flight tableau. This intentionally replaces the poster-card composition. */
#overlay.intro {
    display: block;
    padding: 0;
    overflow: hidden;
    background:
        linear-gradient(90deg, rgba(5,12,17,.92), rgba(6,15,20,.55) 34%, rgba(6,15,20,.03) 68%),
        linear-gradient(0deg, rgba(4,11,15,.78), transparent 37%, rgba(4,11,15,.28));
}
#overlay.intro::before {
    opacity: 1;
    background:
        linear-gradient(90deg, transparent 0 49.94%, rgba(243,241,231,.12) 50%, transparent 50.06%),
        linear-gradient(0deg, transparent 0 49.92%, rgba(243,241,231,.1) 50%, transparent 50.08%),
        repeating-linear-gradient(90deg, transparent 0 9.96vw, rgba(243,241,231,.035) 10vw, transparent 10.04vw),
        repeating-linear-gradient(0deg, transparent 0 9.96vh, rgba(243,241,231,.03) 10vh, transparent 10.04vh);
    mask-image: none;
    -webkit-mask-image: none;
}
#overlay.intro::after {
    right: 3vw;
    bottom: 8vh;
    width: 55vw;
    height: 73vh;
    border-color: rgba(243,241,231,.16);
    opacity: .8;
}
#overlay.intro .introAtmosphere::before {
    top: -26vw;
    right: -8vw;
    width: 72vw;
    height: 72vw;
    border-color: rgba(246,214,165,.3);
    box-shadow: 0 0 0 9vw rgba(246,214,165,.025), 0 0 110px rgba(246,214,165,.15), inset 0 0 120px rgba(246,214,165,.15);
}
#overlay.intro .introAtmosphere::after { right: -15%; bottom: 24%; width: 88vw; opacity: .7; }
#overlay.intro .introTopline {
    z-index: 5;
    left: 4vw;
    right: 4vw;
    top: max(21px, env(safe-area-inset-top));
    padding: 11px 0;
    border-top: 1px solid rgba(243,241,231,.48);
    border-bottom: 1px solid rgba(243,241,231,.18);
    font-size: 8px;
    letter-spacing: .16em;
}
#overlay.intro .introTopline::after { display: none; }
#overlay.intro .introTopline span:first-child { margin-right: auto; }
#overlay.intro .introTopline span:nth-child(2) { margin-right: 28px; color: rgba(243,241,231,.52); }
#overlay.intro .introTopline span:last-child { margin: 0; color: var(--cream); }
#overlay.intro .introTopline em { margin-left: 10px; color: rgba(243,241,231,.52); font-style: normal; }
#overlay.intro .introTopline i { display: inline-block; width: 6px; height: 6px; margin: 0 6px 1px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 9px var(--mint); }
#overlay.intro .introBrand {
    position: absolute;
    z-index: 4;
    left: 8vw;
    top: clamp(116px, 18vh, 190px);
    width: min(620px, 48vw);
    animation: introCardIn .9s cubic-bezier(.18,.82,.22,1) both;
}
#overlay.intro .introKicker,
#overlay.intro .introEdition {
    display: block;
    color: var(--mint);
    font: 800 9px Consolas, monospace;
    letter-spacing: .28em;
}
#overlay.intro .introKicker::before { content: ""; display: inline-block; width: 29px; height: 2px; margin: 0 10px 3px 0; background: var(--coral); }
#overlay.intro .introBrand h1 {
    display: flex;
    margin: 14px 0 15px;
    font-size: clamp(84px, 10.6vw, 164px);
    line-height: .69;
    letter-spacing: -.095em;
    white-space: nowrap;
}
#overlay.intro .introBrand h1 span { text-shadow: 8px 9px 0 rgba(5,12,17,.72), 15px 17px 0 rgba(232,65,65,.25); }
#overlay.intro .introBrand .titleSuper { color: var(--cream); }
#overlay.intro .introBrand .titleSonic { margin-left: .02em; color: var(--yellow); }
#overlay.intro .introBrand .subtitle { margin: 0 0 12px; color: var(--coral); font-size: 10px; letter-spacing: .43em; }
#overlay.intro .introEdition { color: rgba(243,241,231,.48); font-size: 7px; }
#overlay.intro .card {
    position: absolute;
    z-index: 5;
    left: 8vw;
    bottom: clamp(76px, 11vh, 132px);
    width: min(585px, 45vw);
    margin: 0;
    padding: 0;
    border: 0;
    filter: none;
    animation: introCardIn 1s .12s cubic-bezier(.18,.82,.22,1) both;
}
#overlay.intro #missionPanel {
    max-width: none;
    padding: 15px 17px 17px;
    border: 1px solid rgba(243,241,231,.25);
    border-top: 3px solid var(--coral);
    background: linear-gradient(125deg, rgba(6,15,20,.94), rgba(13,29,36,.74));
    box-shadow: 16px 19px 42px rgba(0,0,0,.29), inset 0 1px rgba(255,255,255,.1);
    backdrop-filter: blur(10px);
}
#overlay.intro #missionPanel::before,
#overlay.intro #missionPanel::after { display: none; }
#overlay.intro .introPanelHeader { display: flex !important; justify-content: space-between; margin-bottom: 10px; color: var(--mint); font: 900 8px Consolas, monospace; letter-spacing: .2em; }
#overlay.intro .introPanelHeader b { color: var(--yellow); font-size: 7px; }
#overlay.intro .missionMenuTitle { margin: 0; color: var(--cream); font-size: 22px; letter-spacing: .04em; }
#overlay.intro .missionMenuSubtitle { margin: 3px 0 10px; color: var(--coral); font-size: 8px; }
#overlay.intro #overlayText { max-width: none; margin: 0 0 13px; padding: 0; border: 0; color: rgba(243,241,231,.62); font-size: 11px; line-height: 1.55; }
#overlay.intro #missionSelect { max-width: none; margin: 0 0 12px; padding: 0; border: 0; background: none; box-shadow: none; }
#overlay.intro .missionSelectHeader { padding: 7px 0; border-block: 1px solid rgba(120,210,166,.35); color: var(--mint); }
#overlay.intro #missionList { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 5px; margin-top: 7px; }
#overlay.intro .missionChoice { min-height: 49px; padding: 8px 9px; border-color: rgba(243,241,231,.18); background: rgba(243,241,231,.045); }
#overlay.intro .missionChoice b { font-size: 9px; }
#overlay.intro .introMissionRoute { max-width: none; margin: 0 0 14px; padding: 8px 0 0; border: 0; border-top: 1px solid rgba(243,241,231,.2); background: none; }
#overlay.intro .introRouteTitle { display: flex; justify-content: space-between; margin-bottom: 8px; color: var(--mint); font: 900 7px Consolas, monospace; letter-spacing: .18em; }
#overlay.intro .introRouteTitle b { color: var(--yellow); font-size: 7px; }
#overlay.intro .introMissionRoute::before { display: none; }
#overlay.intro .introLaunchRow { gap: 12px; }
#overlay.intro #startButton { min-width: 240px; padding: 15px 17px; }
#overlay.intro .introLaunchHint { font-size: 7px; }
#overlay.intro .introAircraftData {
    z-index: 5;
    right: 5vw;
    top: 19vh;
    width: 225px;
    padding: 13px 0;
    border-color: rgba(243,241,231,.33);
    text-align: left;
    font: 800 8px Consolas, monospace;
}
#overlay.intro .introAircraftData::before { display: none; }
#overlay.intro .introAircraftData > span { color: var(--mint); letter-spacing: .18em; }
#overlay.intro .introAircraftData b { margin: 7px 0 3px; font-size: 42px; }
#overlay.intro .introAircraftData em { display: block; margin-bottom: 11px; color: rgba(243,241,231,.58); font-style: normal; letter-spacing: .12em; }
#overlay.intro .introAircraftData div { display: flex; justify-content: space-between; padding: 5px 0; border-top: 1px solid rgba(243,241,231,.14); color: rgba(243,241,231,.48); }
#overlay.intro .introAircraftData strong { color: var(--coral); }
#overlay.intro .introAircraftData div:last-child strong { color: var(--mint); }
#overlay.intro .introFooter { z-index: 5; right: 4vw; bottom: 7vh; max-width: 390px; font-size: 7px; }
#overlay.intro .introCommandStrip { z-index: 5; left: 4vw; right: auto; bottom: max(23px, env(safe-area-inset-bottom)); }
#overlay.intro > .controls {
    position: absolute;
    z-index: 5;
    right: 4vw;
    bottom: max(22px, env(safe-area-inset-bottom));
    display: grid;
    grid-template-columns: repeat(4, auto);
    max-width: none;
    margin: 0;
    border: 0;
    background: rgba(6,15,20,.45);
}
#overlay.intro > .controls .control { min-height: 0; padding: 7px 10px; border: 0; border-left: 1px solid rgba(243,241,231,.18); color: rgba(243,241,231,.45); font-size: 7px; }
#overlay.intro > .controls .control b { margin-bottom: 3px; color: var(--cream); font-size: 7px; }
#overlay.intro > .controls .control:first-child { border-left: 0; }
#overlay.intro .introTargetingFrame { z-index: 2; }
#overlay.intro .cornerTL { top: 18%; right: 11%; }
#overlay.intro .cornerTR { top: 18%; right: 3%; }
#overlay.intro .cornerBL { bottom: 17%; right: 11%; }
#overlay.intro .cornerBR { bottom: 17%; right: 3%; }
#overlay.intro .labelRange { top: calc(18% - 17px); right: 3%; }
#overlay.intro .labelTrack { right: 3%; bottom: calc(17% - 17px); }
@media (pointer: coarse), (max-width: 760px) {
    #overlay.intro { background: linear-gradient(0deg, rgba(4,11,15,.96), rgba(6,15,20,.68) 52%, rgba(6,15,20,.08)); }
    #overlay.intro .introTopline { left: 18px; right: 18px; top: max(12px, env(safe-area-inset-top)); font-size: 6px; }
    #overlay.intro .introTopline span:nth-child(2) { display: none; }
    #overlay.intro .introBrand { left: 20px; top: max(80px, 12vh); width: calc(100% - 40px); }
    #overlay.intro .introBrand h1 { font-size: clamp(64px, 20vw, 102px); }
    #overlay.intro .introBrand .subtitle { font-size: 7px; letter-spacing: .3em; }
    #overlay.intro .card { left: 20px; right: 20px; bottom: max(72px, env(safe-area-inset-bottom)); width: auto; }
    #overlay.intro #missionPanel { padding: 11px 12px 12px; backdrop-filter: none; }
    #overlay.intro #overlayText, #overlay.intro .introMissionRoute, #overlay.intro .introAircraftData, #overlay.intro .introFooter, #overlay.intro .introCommandStrip, #overlay.intro > .controls, #overlay.intro .introTargetingFrame { display: none !important; }
    #overlay.intro .missionMenuTitle { font-size: 17px; }
    #overlay.intro .missionMenuSubtitle { margin-bottom: 7px; }
    #overlay.intro #missionList { gap: 4px; }
    #overlay.intro .missionChoice { min-height: 42px; padding: 6px; font-size: 7px; }
    #overlay.intro .missionChoice b { margin-bottom: 2px; font-size: 8px; }
    #overlay.intro #startButton { min-width: min(226px, 68vw); padding: 13px; }
    #overlay.intro .introAtmosphere::before { top: -14vw; right: -28vw; width: 110vw; height: 110vw; }
}
@media (max-height: 650px) and (min-width: 761px) {
    #overlay.intro .introBrand { top: 14vh; }
    #overlay.intro .card { bottom: 52px; transform: scale(.84); transform-origin: left bottom; }
    #overlay.intro .introAircraftData { top: 16vh; }
    #overlay.intro .introFooter { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
    #overlay.intro *, #overlay.intro::before, #overlay.intro::after { animation: none !important; }
}

/* Two deliberate front-door choices: open-air free flight is the landing
   mode; operations opens the campaign console without mixing the two. */
#overlay.intro .introModeSwitch { display: grid; grid-template-columns: 1fr 1fr; width: min(490px, 100%); margin-top: 23px; border: 1px solid rgba(243,241,231,.3); background: rgba(5,12,17,.45); }
#overlay.intro .introModeSwitch button { min-height: 54px; padding: 9px 12px; border: 0; color: rgba(243,241,231,.57); background: transparent; font: 900 10px Consolas, monospace; letter-spacing: .13em; text-align: left; cursor: pointer; transition: color .18s ease, background .18s ease; }
#overlay.intro .introModeSwitch button + button { border-left: 1px solid rgba(243,241,231,.2); }
#overlay.intro .introModeSwitch button small { display: block; margin-top: 5px; color: rgba(243,241,231,.38); font-size: 7px; letter-spacing: .1em; }
#overlay.intro .introModeSwitch button:hover { color: var(--cream); background: rgba(243,241,231,.08); }
#overlay.intro .introModeSwitch button.selected { color: var(--ink); background: var(--yellow); box-shadow: inset 4px 0 var(--coral); }
#overlay.intro .introModeSwitch button.selected small { color: rgba(26,34,42,.72); }
#overlay.intro .introModePanel { position: absolute; z-index: 5; left: 8vw; bottom: clamp(88px, 13vh, 156px); width: min(540px, 43vw); padding: 17px 18px 18px; border: 1px solid rgba(243,241,231,.28); border-top: 3px solid var(--mint); background: linear-gradient(125deg, rgba(5,14,19,.94), rgba(13,34,38,.72)); box-shadow: 16px 19px 42px rgba(0,0,0,.3), inset 0 1px rgba(255,255,255,.1); backdrop-filter: blur(10px); animation: introCardIn .65s cubic-bezier(.18,.82,.22,1) both; }
#overlay.intro .introModePanel .introPanelHeader { display: flex !important; justify-content: space-between; margin-bottom: 10px; color: var(--mint); font: 900 8px Consolas, monospace; letter-spacing: .2em; }
#overlay.intro .introModePanel .introPanelHeader b { color: var(--yellow); font-size: 7px; }
#overlay.intro .introModePanel h2 { margin: 0 0 7px; color: var(--cream); font: italic 900 clamp(27px, 3vw, 42px)/.9 "Arial Narrow", Impact, sans-serif; letter-spacing: .03em; }
#overlay.intro .introModePanel p { max-width: 440px; margin: 0 0 15px; color: rgba(243,241,231,.66); font-size: 12px; line-height: 1.5; }
#overlay.intro .freeFlightStats { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 16px; border-block: 1px solid rgba(243,241,231,.16); }
#overlay.intro .freeFlightStats span { padding: 8px 9px; color: rgba(243,241,231,.52); font: 800 8px Consolas, monospace; letter-spacing: .1em; }
#overlay.intro .freeFlightStats span + span { border-left: 1px solid rgba(243,241,231,.14); }
#overlay.intro .freeFlightStats b { display: block; margin-bottom: 4px; color: var(--mint); font-size: 7px; }
#freeFlightButton { min-width: 240px; padding: 15px 17px; border: 0; clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 0 100%); color: var(--ink); background: linear-gradient(135deg, var(--mint), #a5dfba); box-shadow: 8px 8px 0 rgba(255,200,87,.25); font: 900 11px Consolas, monospace; letter-spacing: .16em; cursor: pointer; transition: transform .16s ease, box-shadow .16s ease; }
#freeFlightButton::after { content: ""; display: inline-block; width: 16px; height: 8px; margin-left: 11px; background: currentColor; clip-path: polygon(0 0, 100% 50%, 0 100%, 23% 50%); }
#freeFlightButton:hover { transform: translate(-2px, -2px); box-shadow: 11px 11px 0 rgba(255,200,87,.3), 0 0 20px rgba(120,210,166,.2); }
#overlay.intro:not(.missions-mode) .card { display: none; }
#overlay.intro.missions-mode #freeFlightPanel { display: none !important; }
#overlay.intro.missions-mode .card { display: block; }
#overlay.intro.missions-mode .introBrand { animation: none; }
#overlay.intro.missions-mode .introBrand h1 { opacity: .52; transform: scale(.9); transform-origin: left top; }
#overlay.intro.missions-mode .introBrand .subtitle, #overlay.intro.missions-mode .introEdition { opacity: .48; }
#overlay.intro.missions-mode .introModeSwitch { margin-top: 15px; }
@media (pointer: coarse), (max-width: 760px) {
    #overlay.intro .introModeSwitch { margin-top: 17px; }
    #overlay.intro .introModeSwitch button { min-height: 48px; padding: 7px 9px; font-size: 8px; }
    #overlay.intro .introModePanel { left: 20px; right: 20px; bottom: max(72px, env(safe-area-inset-bottom)); width: auto; padding: 12px; backdrop-filter: none; }
    #overlay.intro .introModePanel h2 { font-size: 28px; }
    #overlay.intro .introModePanel p { margin-bottom: 11px; font-size: 10px; }
    #overlay.intro .freeFlightStats { margin-bottom: 12px; }
    #freeFlightButton { min-width: min(226px, 68vw); padding: 13px; }
    #overlay.intro .introModePanel .introLaunchHint { display: none; }
    #overlay.intro.missions-mode .introBrand { top: max(80px, 12vh); }
    #overlay.intro.missions-mode .introBrand h1 { font-size: clamp(47px, 15vw, 75px); }
}

/* Atmospheric finish: depth, cloud shadow and a directional sun flare make
   the title tableau feel like a moving aerial photograph, not a flat menu. */
#overlay.intro {
    background:
        radial-gradient(ellipse 55% 72% at 76% 31%, rgba(246,214,165,.11) 0%, rgba(246,214,165,.025) 28%, transparent 60%),
        linear-gradient(104deg, rgba(3,10,14,.95) 0%, rgba(5,14,19,.77) 33%, rgba(5,14,19,.19) 63%, rgba(5,14,19,.02) 100%),
        linear-gradient(0deg, rgba(3,10,14,.86) 0%, transparent 38%, rgba(3,10,14,.17) 100%);
}
#overlay.intro .introAtmosphere {
    background:
        radial-gradient(ellipse at 78% 32%, rgba(255,245,210,.12), transparent 8%),
        radial-gradient(ellipse at 74% 39%, rgba(246,214,165,.08), transparent 24%);
    mix-blend-mode: screen;
}
#overlay.intro .introAtmosphere::after {
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, rgba(255,245,210,.05) 26%, rgba(255,245,210,.66) 69%, transparent 100%);
    box-shadow: 0 -38px 45px rgba(246,214,165,.14), 0 38px 52px rgba(246,214,165,.09);
}
#overlay.intro::before {
    background:
        linear-gradient(90deg, transparent 0 49.95%, rgba(243,241,231,.1) 50%, transparent 50.05%),
        linear-gradient(0deg, transparent 0 49.93%, rgba(243,241,231,.08) 50%, transparent 50.07%),
        repeating-linear-gradient(90deg, transparent 0 12.45vw, rgba(243,241,231,.025) 12.5vw, transparent 12.55vw),
        repeating-linear-gradient(0deg, transparent 0 12.45vh, rgba(243,241,231,.02) 12.5vh, transparent 12.55vh);
}
@media (pointer: coarse), (max-width: 760px) {
    #overlay.intro { background: linear-gradient(0deg, rgba(3,10,14,.97), rgba(5,14,19,.7) 55%, rgba(5,14,19,.11)); }
    #overlay.intro .introAtmosphere { mix-blend-mode: normal; }
}