:root {
    --color-bg: #050508;
    --color-text: #c8c8c8;
    --color-text-dim: #4a4a4a;
    --color-accent-red: #cc0000;
    --color-accent-red-glow: rgba(204, 0, 0, 0.5);
    --color-accent-cyan: #00d4ff;
    --color-accent-cyan-glow: rgba(0, 212, 255, 0.3);
    --color-accent-amber: #ff8800;
    --color-accent-amber-glow: rgba(255, 136, 0, 0.4);
    --color-grid: rgba(0, 212, 255, 0.08);
    --color-steel: #2a2a2e;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
}

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

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}

body {
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-mono);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.hud-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(90deg, var(--color-grid) 1px, transparent 1px),
        linear-gradient(0deg, var(--color-grid) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
}

.hud-corner {
    position: fixed;
    font-size: 0.65rem;
    color: var(--color-text-dim);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    z-index: 10;
    line-height: 1.6;
}

.hud-corner.top-left {
    top: 20px;
    left: 20px;
}

.hud-corner.top-right {
    top: 20px;
    right: 20px;
    text-align: right;
}

.hud-corner.bottom-left {
    bottom: 20px;
    left: 20px;
}

.hud-corner.bottom-right {
    bottom: 20px;
    right: 20px;
    text-align: right;
}

.hud-corner .label {
    color: var(--color-accent-cyan);
    opacity: 0.7;
}

.hud-corner .value {
    color: var(--color-text);
}

.hud-corner .warning {
    color: var(--color-accent-red);
}

.hud-corner .caution {
    color: var(--color-accent-amber);
}

.container {
    text-align: center;
    padding: 2rem;
    position: relative;
    z-index: 5;
}

.sensor-core {
    margin: 0 auto 2.5rem;
    width: 180px;
    height: 180px;
    position: relative;
}

.reticle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 220px;
    height: 220px;
    border: 1px solid var(--color-accent-cyan);
    border-radius: 50%;
    opacity: 0.3;
}

.reticle::before,
.reticle::after {
    content: '';
    position: absolute;
    background: var(--color-accent-cyan);
    opacity: 0.5;
}

.reticle::before {
    width: 1px;
    height: 100%;
    left: 50%;
    top: 0;
}

.reticle::after {
    width: 100%;
    height: 1px;
    top: 50%;
    left: 0;
}

.reticle-inner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 260px;
    height: 260px;
    border: 1px solid var(--color-accent-cyan);
    border-radius: 50%;
    opacity: 0.15;
}

.aperture-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: conic-gradient(
        from 0deg,
        transparent 0deg,
        rgba(0, 212, 255, 0.1) 30deg,
        transparent 60deg,
        transparent 120deg,
        rgba(0, 212, 255, 0.1) 150deg,
        transparent 180deg,
        transparent 240deg,
        rgba(0, 212, 255, 0.1) 270deg,
        transparent 300deg
    );
    animation: rotate-aperture 20s linear infinite;
}

@keyframes rotate-aperture {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.eye-housing {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background: linear-gradient(145deg, #1a1a1e, #0a0a0c);
    box-shadow: 
        0 0 80px var(--color-accent-red-glow),
        inset 0 0 40px rgba(0, 0, 0, 0.9),
        0 0 2px var(--color-steel);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    z-index: 2;
}

.eye-lens {
    width: 75%;
    height: 75%;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, 
        #ff2200 0%, 
        #cc0000 30%, 
        #800000 60%, 
        #400000 100%
    );
    box-shadow: 
        0 0 60px var(--color-accent-red-glow),
        inset 0 0 30px rgba(0, 0, 0, 0.6),
        inset 2px 2px 10px rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: lens-pulse 4s ease-in-out infinite;
}

.yeahnah .eye-lens {
    background: radial-gradient(circle at 30% 30%, 
        #ffaa00 0%, 
        #ff8800 30%, 
        #804400 60%, 
        #402200 100%
    );
    box-shadow: 
        0 0 60px var(--color-accent-amber-glow),
        inset 0 0 30px rgba(0, 0, 0, 0.6),
        inset 2px 2px 10px rgba(255, 255, 255, 0.1);
}

.yeahnah .eye-housing {
    box-shadow: 
        0 0 80px var(--color-accent-amber-glow),
        inset 0 0 40px rgba(0, 0, 0, 0.9),
        0 0 2px var(--color-steel);
}

@keyframes lens-pulse {
    0%, 100% {
        transform: scale(1);
        filter: brightness(1);
    }
    50% {
        transform: scale(1.02);
        filter: brightness(1.1);
    }
}

.eye-core {
    width: 25%;
    height: 25%;
    border-radius: 50%;
    background: radial-gradient(circle, #ffffff 0%, #ffcccc 50%, #ff8888 100%);
    box-shadow: 
        0 0 30px rgba(255, 255, 255, 0.8),
        0 0 60px rgba(255, 200, 200, 0.4);
}

.yeahnah .eye-core {
    background: radial-gradient(circle, #ffffff 0%, #ffeecc 50%, #ffcc88 100%);
    box-shadow: 
        0 0 30px rgba(255, 255, 255, 0.8),
        0 0 60px rgba(255, 238, 200, 0.4);
}

.message-container {
    margin-bottom: 1.5rem;
}

.primary-text {
    font-size: 2.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    color: var(--color-text);
    position: relative;
    animation: text-interference 3s infinite;
}

@keyframes text-interference {
    0%, 95%, 100% {
        text-shadow: 
            2px 0 var(--color-accent-red),
            -2px 0 var(--color-accent-cyan);
        transform: translateX(0);
    }
    96% {
        text-shadow: 
            -3px 0 var(--color-accent-red),
            3px 0 var(--color-accent-cyan);
        transform: translateX(-2px);
    }
    97% {
        text-shadow: 
            3px 0 var(--color-accent-red),
            -3px 0 var(--color-accent-cyan);
        transform: translateX(2px);
    }
    98% {
        text-shadow: 
            -2px 0 var(--color-accent-red),
            2px 0 var(--color-accent-cyan);
        transform: translateX(-1px);
    }
}

.secondary-text {
    font-size: 1.3rem;
    color: var(--color-text-dim);
    margin-top: 0.8rem;
    letter-spacing: 0.2em;
    font-weight: 300;
}

.secondary-text-large {
    font-size: 2rem;
    color: var(--color-accent-amber);
    margin-top: 0.8rem;
    letter-spacing: 0.3em;
    text-transform: lowercase;
    font-weight: 400;
}

.status-bar {
    margin-top: 1.5rem;
    padding: 0.8rem 1.5rem;
    background: rgba(204, 0, 0, 0.1);
    border: 1px solid rgba(204, 0, 0, 0.3);
    display: inline-block;
}

.yeahnah .status-bar {
    background: rgba(255, 136, 0, 0.1);
    border: 1px solid rgba(255, 136, 0, 0.3);
}

.status-text {
    font-size: 0.8rem;
    color: var(--color-accent-red);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.yeahnah .status-text {
    color: var(--color-accent-amber);
}

.cursor-blink {
    animation: cursor-blink 1s step-end infinite;
}

@keyframes cursor-blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.countdown {
    display: inline-block;
    min-width: 1.2em;
    font-weight: 700;
    color: #fff;
}

.action-container {
    margin-top: 2.5rem;
}

.action-btn {
    color: var(--color-text-dim);
    text-decoration: none;
    font-size: 0.75rem;
    letter-spacing: 0.25em;
    padding: 0.6rem 1.2rem;
    border: 1px solid var(--color-text-dim);
    background: transparent;
    transition: all 0.3s ease;
    text-transform: uppercase;
}

.action-btn:hover {
    color: var(--color-accent-cyan);
    border-color: var(--color-accent-cyan);
    box-shadow: 
        0 0 20px var(--color-accent-cyan-glow),
        inset 0 0 20px var(--color-accent-cyan-glow);
}

.info-panel {
    margin-top: 2.5rem;
    padding: 1.2rem 1.5rem;
    border: 1px solid var(--color-text-dim);
    background: rgba(255, 136, 0, 0.03);
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
}

.info-panel p {
    font-size: 0.8rem;
    color: var(--color-text-dim);
    line-height: 1.8;
    letter-spacing: 0.08em;
}

.sensor-sweep {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(
        to right,
        transparent 0%,
        var(--color-accent-cyan) 50%,
        transparent 100%
    );
    opacity: 0.4;
    animation: sensor-sweep 6s linear infinite;
    pointer-events: none;
    z-index: 100;
}

@keyframes sensor-sweep {
    0% { top: 0; opacity: 0.4; }
    50% { opacity: 0.2; }
    100% { top: 100vh; opacity: 0.4; }
}

.vignette {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        ellipse at center,
        transparent 0%,
        transparent 40%,
        rgba(0, 0, 0, 0.6) 100%
    );
    pointer-events: none;
    z-index: 2;
}

.noise-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
    pointer-events: none;
    z-index: 3;
}

@media (max-width: 600px) {
    .primary-text {
        font-size: 1.8rem;
        letter-spacing: 0.15em;
    }
    
    .secondary-text {
        font-size: 1rem;
    }
    
    .secondary-text-large {
        font-size: 1.4rem;
    }
    
    .sensor-core {
        width: 120px;
        height: 120px;
    }
    
    .reticle {
        width: 150px;
        height: 150px;
    }
    
    .reticle-inner {
        width: 180px;
        height: 180px;
    }
    
    .aperture-ring {
        width: 140px;
        height: 140px;
    }
    
    .hud-corner {
        font-size: 0.55rem;
    }
}