*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    -webkit-tap-highlight-color:transparent;
}

:root{
    --neon-cyan:#00ffee;
    --neon-pink:#ff2bd6;
    --neon-yellow:#ffe566;
    --neon-green:#39ff14;
    --neon-orange:#ff9f1c;
    --neon-blue:#4d9fff;
    --bg-deep:#050816;
    --panel:#0a0e1aee;
    --safe-bottom:env(safe-area-inset-bottom, 0px);
}

html{
    height:100%;
}

body{
    font-family:'Press Start 2P', system-ui, sans-serif;
    background:var(--bg-deep);
    overflow-x:hidden;
    overflow-y:auto;
    color:white;
    min-height:100%;
    min-height:100dvh;
    touch-action:manipulation;
}

#background{
    position:fixed;
    inset:0;
    background:
        radial-gradient(ellipse 80% 50% at 15% 10%, #2b1055 0%, transparent 50%),
        radial-gradient(ellipse 60% 40% at 85% 80%, #0066ff33 0%, transparent 45%),
        radial-gradient(ellipse 50% 50% at 50% 40%, #ff008022 0%, transparent 55%),
        radial-gradient(circle at 70% 20%, #00c2ff18 0%, transparent 30%);
    filter:blur(60px);
    animation:moveBackground 14s ease-in-out infinite alternate;
    z-index:-2;
    pointer-events:none;
}

@keyframes moveBackground{
    from{ transform:translate(-3%, -2%) scale(1.05); }
    to{ transform:translate(3%, 2%) scale(1.1); }
}

/* CRT scanlines */
body::after{
    content:"";
    position:fixed;
    inset:0;
    background:linear-gradient(rgba(255,255,255,.04) 50%, transparent 50%);
    background-size:100% 3px;
    pointer-events:none;
    z-index:9999;
    opacity:.7;
}

/* subtle vignette */
body::before{
    content:"";
    position:fixed;
    inset:0;
    background:radial-gradient(ellipse at center, transparent 40%, #00000088 100%);
    pointer-events:none;
    z-index:-1;
}

.container{
    display:flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    min-height:100vh;
    min-height:100dvh;
    padding:max(24px, env(safe-area-inset-top)) 16px max(48px, calc(24px + var(--safe-bottom)));
    width:100%;
    max-width:720px;
    margin:0 auto;
}

/* Title block */
.title-block{
    text-align:center;
    margin-bottom:clamp(28px, 6vw, 48px);
    position:relative;
}

.title-block .badge{
    display:inline-block;
    font-size:clamp(0.45rem, 1.5vw, 0.55rem);
    letter-spacing:0.25em;
    color:var(--neon-pink);
    text-shadow:0 0 12px var(--neon-pink);
    margin-bottom:12px;
    animation:flicker 4s infinite;
}

@keyframes flicker{
    0%, 100%{ opacity:1; }
    92%{ opacity:1; }
    93%{ opacity:0.4; }
    94%{ opacity:1; }
    96%{ opacity:0.6; }
    97%{ opacity:1; }
}

h1{
    font-size:clamp(1.15rem, 5.5vw, 2.4rem);
    line-height:1.35;
    color:var(--neon-cyan);
    text-shadow:
        0 0 8px var(--neon-cyan),
        0 0 24px var(--neon-cyan),
        0 0 48px #00ffee66;
    animation:pulse 2.4s ease-in-out infinite;
    letter-spacing:0.04em;
}

h1 .accent{
    color:var(--neon-pink);
    text-shadow:
        0 0 8px var(--neon-pink),
        0 0 24px var(--neon-pink);
}

@keyframes pulse{
    0%, 100%{ transform:scale(1); filter:brightness(1); }
    50%{ transform:scale(1.03); filter:brightness(1.15); }
}

.subtitle{
    margin-top:14px;
    font-size:clamp(0.45rem, 1.8vw, 0.55rem);
    color:#8ab;
    letter-spacing:0.12em;
    line-height:1.6;
}

.menu,
.panel{
    display:flex;
    flex-direction:column;
    gap:14px;
    width:100%;
    max-width:520px;
}

.hidden{
    display:none !important;
}

/* Main menu buttons */
.menu > button,
.panel > button[data-back],
#muteBtn{
    font-family:'Press Start 2P', system-ui, sans-serif;
    padding:18px 20px;
    font-size:clamp(0.65rem, 2.4vw, 0.8rem);
    background:linear-gradient(180deg, #141828 0%, #0a0e18 100%);
    color:#e8f0ff;
    border:2px solid var(--neon-cyan);
    border-radius:4px;
    cursor:pointer;
    transition:transform .15s ease, box-shadow .2s ease, background .2s ease, color .15s ease;
    text-align:center;
    text-decoration:none;
    box-shadow:
        0 0 0 1px #00ffee33,
        0 4px 20px #00ffee22,
        inset 0 1px 0 #ffffff18;
    position:relative;
    overflow:hidden;
    min-height:52px;
    touch-action:manipulation;
}

.menu > button::before{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(90deg, transparent, #00ffee22, transparent);
    transform:translateX(-100%);
    transition:transform .4s ease;
}

.menu > button:hover::before,
.menu > button:focus-visible::before{
    transform:translateX(100%);
}

.menu > button:hover,
.menu > button:focus-visible,
.panel > button[data-back]:hover,
#muteBtn:hover{
    background:var(--neon-cyan);
    color:#050816;
    transform:translateY(-2px) scale(1.02);
    box-shadow:0 0 28px #00ffee99, 0 8px 24px #0008;
    outline:none;
}

.menu > button:active,
.panel > button[data-back]:active,
.game-card:active{
    transform:scale(0.97);
}

/* Game grid — 1 col phone, 2 cols wider */
.game-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:12px;
    width:100%;
}

@media (min-width:480px){
    .game-grid{
        grid-template-columns:1fr 1fr;
        gap:14px;
    }
}

.game-card{
    font-family:'Press Start 2P', system-ui, sans-serif;
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:16px 14px 14px;
    background:linear-gradient(145deg, #12162a 0%, #0a0e18 100%);
    color:white;
    border:2px solid var(--card-accent, var(--neon-cyan));
    border-radius:6px;
    cursor:pointer;
    transition:transform .15s ease, box-shadow .2s ease, background .2s ease;
    text-decoration:none;
    box-shadow:0 0 16px color-mix(in srgb, var(--card-accent, #00ffee) 25%, transparent);
    min-height:96px;
    position:relative;
    overflow:hidden;
    touch-action:manipulation;
}

.game-card::after{
    content:"";
    position:absolute;
    top:0;
    right:0;
    width:48px;
    height:48px;
    background:radial-gradient(circle at top right, color-mix(in srgb, var(--card-accent, #00ffee) 35%, transparent), transparent 70%);
    pointer-events:none;
}

.game-card:hover,
.game-card:focus-visible{
    background:color-mix(in srgb, var(--card-accent, #00ffee) 18%, #0a0e18);
    transform:translateY(-3px) scale(1.02);
    box-shadow:0 0 32px color-mix(in srgb, var(--card-accent, #00ffee) 55%, transparent);
    outline:none;
}

.game-card .card-icon{
    font-size:1.35rem;
    line-height:1;
    filter:drop-shadow(0 0 6px var(--card-accent, #00ffee));
}

.game-card .card-title{
    font-size:clamp(0.6rem, 2.2vw, 0.72rem);
    color:var(--card-accent, var(--neon-cyan));
    text-shadow:0 0 10px var(--card-accent, #00ffee);
    letter-spacing:0.04em;
}

.game-card .card-blurb{
    font-size:0.42rem;
    color:#9ab;
    line-height:1.55;
    letter-spacing:0.02em;
}

/* Scores / about */
.score-row,
.about-copy,
.settings-row{
    font-size:clamp(0.5rem, 1.8vw, 0.62rem);
    line-height:1.85;
    color:#cde;
}

.scores-list{
    background:var(--panel);
    border:2px solid #1a3040;
    border-radius:6px;
    padding:16px 18px;
    margin-bottom:4px;
}

.score-row{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:12px;
    padding:8px 0;
    border-bottom:1px solid #1a2838;
}

.score-row:last-child{
    border-bottom:none;
}

.score-row .score-val{
    color:var(--neon-yellow);
    text-shadow:0 0 8px #ffe56688;
    font-variant-numeric:tabular-nums;
}

.about-copy{
    background:var(--panel);
    border:2px solid #1a3040;
    border-radius:6px;
    padding:18px 16px;
    text-align:left;
}

.about-copy strong{
    color:var(--neon-cyan);
}

.settings-row{
    display:flex;
    flex-direction:column;
    gap:10px;
    background:var(--panel);
    border:2px solid #1a3040;
    border-radius:6px;
    padding:16px;
}

.settings-row label{
    color:var(--neon-cyan);
    font-size:0.55rem;
}

input[type="range"]{
    width:100%;
    height:28px;
    accent-color:var(--neon-cyan);
    cursor:pointer;
}

.enter-link{
    font-family:'Press Start 2P', system-ui, sans-serif;
    color:var(--neon-cyan);
    font-size:1rem;
    text-shadow:0 0 16px var(--neon-cyan);
}

footer{
    margin-top:28px;
    font-size:0.5rem;
    color:#667;
    letter-spacing:0.15em;
    text-align:center;
}

.panel-title{
    font-size:clamp(0.7rem, 2.5vw, 0.85rem);
    color:var(--neon-cyan);
    text-align:center;
    margin-bottom:4px;
    text-shadow:0 0 12px var(--neon-cyan);
}

/* Landscape phone: tighter vertical */
@media (max-height:480px) and (orientation:landscape){
    .container{
        padding-top:12px;
        padding-bottom:16px;
        justify-content:flex-start;
    }
    .title-block{
        margin-bottom:16px;
    }
    h1{
        font-size:1rem;
    }
    .menu > button{
        padding:12px 16px;
        min-height:44px;
    }
}

/* —— PWA install banner —— */
.pwa-banner{
    position:fixed;
    left:0;
    right:0;
    bottom:0;
    z-index:10000;
    padding:12px 12px max(16px, env(safe-area-inset-bottom));
    pointer-events:none;
    opacity:0;
    transform:translateY(110%);
    transition:opacity .25s ease, transform .28s cubic-bezier(.2,.8,.2,1);
}

.pwa-banner.visible{
    opacity:1;
    transform:translateY(0);
    pointer-events:auto;
}

.pwa-banner-inner{
    max-width:520px;
    margin:0 auto;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:12px 14px;
    padding:14px 16px;
    background:linear-gradient(160deg, #12182c 0%, #0a0e1a 100%);
    border:2px solid var(--neon-cyan);
    border-radius:10px;
    box-shadow:
        0 0 0 1px #00ffee33,
        0 12px 40px #000c,
        0 0 32px #00ffee33;
}

.pwa-banner-icon{
    width:48px;
    height:48px;
    border-radius:10px;
    border:2px solid #00ffee66;
    flex-shrink:0;
    image-rendering:pixelated;
}

.pwa-banner-copy{
    flex:1 1 140px;
    min-width:0;
}

.pwa-banner-title{
    font-size:0.62rem;
    color:var(--neon-cyan);
    text-shadow:0 0 10px var(--neon-cyan);
    margin-bottom:6px;
    letter-spacing:0.06em;
}

.pwa-banner-body{
    font-size:0.45rem;
    line-height:1.7;
    color:#9ab;
}

.pwa-banner-body strong{
    color:#e8f0ff;
}

.pwa-ios-share{
    color:var(--neon-cyan);
    font-size:0.7rem;
}

.pwa-banner-actions{
    display:flex;
    flex-direction:column;
    gap:8px;
    flex:0 0 auto;
    width:100%;
}

@media (min-width:420px){
    .pwa-banner-actions{
        width:auto;
        min-width:120px;
    }
}

.pwa-btn{
    font-family:'Press Start 2P', system-ui, sans-serif;
    font-size:0.5rem;
    padding:12px 14px;
    border-radius:4px;
    cursor:pointer;
    border:2px solid var(--neon-cyan);
    touch-action:manipulation;
    transition:transform .12s ease, background .15s ease, color .15s ease;
}

.pwa-btn.primary{
    background:var(--neon-cyan);
    color:#050816;
    box-shadow:0 0 16px #00ffee66;
}

.pwa-btn.primary:hover,
.pwa-btn.primary:focus-visible{
    transform:scale(1.03);
    outline:none;
}

.pwa-btn.ghost{
    background:transparent;
    color:#8ab;
    border-color:#2a4060;
}

.pwa-btn.ghost:hover,
.pwa-btn.ghost:focus-visible{
    color:var(--neon-cyan);
    border-color:var(--neon-cyan);
    outline:none;
}

.pwa-btn:active{
    transform:scale(0.97);
}

#installBtn:not(.hidden){
    border-color:var(--neon-pink);
    color:#ffb8ec;
    box-shadow:0 0 16px #ff2bd633;
}

#installBtn:not(.hidden):hover,
#installBtn:not(.hidden):focus-visible{
    background:var(--neon-pink);
    color:#050816;
}