@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

:root {
    --neon-green: #0fa;
    --neon-bg: #02110c;
    --scanline-color: rgba(0, 255, 170, 0.05);
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--neon-bg);
    color: var(--neon-green);
    font-family: 'Press Start 2P', monospace;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    touch-action: none; /* Prevent scroll while playing */
    -webkit-user-select: none;
    user-select: none;
}

/* CRT Effects */
.crt::before {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.06), rgba(0, 255, 0, 0.02), rgba(0, 0, 255, 0.06));
    z-index: 2;
    background-size: 100% 2px, 3px 100%;
    pointer-events: none;
}

.crt::after {
    content: " ";
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: radial-gradient(circle, rgba(0,0,0,0) 60%, rgba(0,0,0,0.6) 100%);
    z-index: 3;
    pointer-events: none;
}

.scanlines {
    width: 100%;
    height: 100%;
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

/* Typography & Glow */
h1.glow-text {
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 4px;
    text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 20px var(--neon-green), 0 0 40px var(--neon-green);
    animation: flicker 2s infinite alternate;
}

h1.mega-glow {
    font-size: 50px;
    margin-bottom: 40px;
    text-shadow: 0 0 10px #fff, 0 0 20px #fff, 0 0 40px var(--neon-green), 0 0 80px var(--neon-green);
}

@keyframes flicker {
    0%, 19%, 21%, 23%, 25%, 54%, 56%, 100% { text-shadow: 0 0 5px #fff, 0 0 10px #fff, 0 0 20px var(--neon-green), 0 0 40px var(--neon-green); opacity: 1; }
    20%, 24%, 55% { text-shadow: none; opacity: 0.8; }
}

/* Screens & Views */
.screen {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.screen.active {
    display: flex;
}

.menu-buttons {
    display: flex;
    flex-direction: column;
    gap: 20px;
    width: 400px;
    max-width: 90vw;
}

.mega-btn {
    font-size: 18px;
    padding: 20px;
    border: 2px solid var(--neon-green);
}

/* UI Panel Glassmorphism / Cyber Look */
#ui-panel {
    margin-bottom: 25px;
    background: rgba(0, 255, 170, 0.05);
    border: 1px solid var(--neon-green);
    box-shadow: inset 0 0 15px rgba(0, 255, 170, 0.2), 0 0 15px rgba(0, 255, 170, 0.2);
    padding: 20px;
    width: 760px; /* Aligns with 800px canvas considering padding */
    box-sizing: border-box;
    backdrop-filter: blur(5px);
    border-radius: 4px;
    position: relative;
    transition: all 0.3s ease;
}

.controls {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    align-items: center;
}

.controls label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    text-transform: uppercase;
    color: #fff;
}

/* Interactive Elements */
.cyber-select, .cyber-btn, .cyber-input {
    background: transparent;
    color: var(--neon-green);
    border: 1px solid var(--neon-green);
    font-family: 'Press Start 2P', monospace;
    font-size: 10px;
    padding: 8px;
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.2s ease;
    outline: none;
}

.cyber-input {
    width: 60px;
    text-align: center;
}

.cyber-select option {
    background: var(--neon-bg);
    color: var(--neon-green);
}

.cyber-select:hover, .cyber-select:focus {
    box-shadow: 0 0 10px var(--neon-green);
    background: rgba(0, 255, 170, 0.1);
}

.cyber-btn {
    background: rgba(0, 255, 170, 0.1);
    box-shadow: 0 0 5px rgba(0,255,170,0.5);
    position: relative;
    overflow: hidden;
}

.cyber-btn:hover {
    background: var(--neon-green);
    color: #000;
    box-shadow: 0 0 15px var(--neon-green), 0 0 25px var(--neon-green);
    transform: scale(1.05);
}

.cyber-btn:active {
    transform: scale(0.95);
}

.instructions {
    text-align: center;
    margin-top: 20px;
    font-size: 9px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 1px;
}

/* Canvas Styling */
.canvas-container {
    position: relative;
    padding: 2px;
    background: linear-gradient(45deg, var(--neon-green), transparent);
    border-radius: 4px;
}

canvas {
    display: block;
    background-color: #000;
    border: 2px solid var(--neon-green);
    box-shadow: 0 0 20px rgba(0, 255, 170, 0.4);
    border-radius: 2px;
    max-width: 100%;
}

/* ============================
   TOUCH CONTROLS
   ============================ */
#touch-controls {
    display: none; /* hidden on desktop */
    width: 100%;
    position: relative;
    flex-shrink: 0;
}

.touch-zone-row {
    display: flex;
    width: 100%;
    gap: 8px;
    padding: 4px 0;
    box-sizing: border-box;
}

.touch-btn {
    flex: 1;
    height: 70px;
    background: rgba(0, 255, 170, 0.08);
    border: 1px solid var(--neon-green);
    border-radius: 6px;
    color: var(--neon-green);
    font-family: 'Press Start 2P', monospace;
    font-size: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 0 8px rgba(0, 255, 170, 0.3);
    transition: background 0.1s, box-shadow 0.1s;
    -webkit-tap-highlight-color: transparent;
    touch-action: none;
    user-select: none;
}

.touch-btn:active,
.touch-btn.pressed {
    background: rgba(0, 255, 170, 0.3);
    box-shadow: 0 0 20px var(--neon-green);
}

.touch-label {
    font-size: 8px;
    text-align: center;
    color: rgba(0, 255, 170, 0.5);
    padding: 2px 0 4px;
    letter-spacing: 1px;
}

/* ============================
   RESPONSIVE BREAKPOINTS
   ============================ */

/* Tablets and below */
@media (max-width: 900px) {
    h1.mega-glow {
        font-size: 30px;
        margin-bottom: 24px;
    }

    .mega-btn {
        font-size: 14px;
        padding: 16px;
    }

    #ui-panel {
        width: 95vw;
        padding: 12px 16px;
        margin-bottom: 10px;
    }

    .controls h1.glow-text {
        font-size: 14px;
    }
}

/* Mobile phones */
@media (max-width: 600px) {
    h1.glow-text {
        font-size: 14px;
        margin-bottom: 12px;
        letter-spacing: 2px;
    }

    h1.mega-glow {
        font-size: 22px;
        margin-bottom: 20px;
    }

    .menu-buttons {
        gap: 14px;
    }

    .mega-btn {
        font-size: 11px;
        padding: 14px 10px;
    }

    .cyber-select, .cyber-input {
        font-size: 9px;
        padding: 6px;
    }

    .menu-buttons label {
        font-size: 8px;
    }

    #ui-panel {
        width: 95vw;
        padding: 8px 12px;
        margin-bottom: 6px;
    }

    #ui-panel h1.glow-text {
        font-size: 10px;
        margin-bottom: 8px;
    }

    .instructions {
        display: none; /* replaced by touch buttons on mobile */
    }

    /* Show touch controls on mobile */
    #touch-controls {
        display: block;
    }
}