/* Cyberpunk Intro: Neural Link Interface */
:root {
    --cyber-blue: #00fbff;
    --cyber-blue-rgb: 0, 251, 255;
    --cyber-danger: #ff0055;
    --bg-dark: #050b18;
}

html, body {
    background-color: var(--bg-dark) !important;
    margin: 0;
    padding: 0;
}

#cyber-intro {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-dark);
    z-index: 99999;
    display: flex;
    justify-content: center;
    align-items: center;
    font-family: 'Orbitron', sans-serif;
    color: var(--cyber-blue);
    overflow: hidden;
    perspective: 1000px;
}

#cyber-intro.fade-out {
    opacity: 0;
    pointer-events: none;
    transition: all 0.6s cubic-bezier(0.645, 0.045, 0.355, 1);
    transform: scale(1.1) rotateX(10deg);
}

/* Background HUD Layers */
.hud-layer {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0.15;
    pointer-events: none;
}

.hud-circle {
    width: 600px;
    height: 600px;
    border: 1px dashed var(--cyber-blue);
    border-radius: 50%;
    animation: rotate_infinite 60s linear infinite;
}

.hud-brackets {
    position: absolute;
    width: 80%;
    height: 80%;
    border-left: 2px solid var(--cyber-blue);
    border-right: 2px solid var(--cyber-blue);
    max-width: 1200px;
}

.hud-brackets::before, .hud-brackets::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background: var(--cyber-blue);
}
.hud-brackets::before { top: 0; left: 0; }
.hud-brackets::after { bottom: 0; right: 0; }

/* Content Layout */
.intro-content {
    position: relative;
    width: 90%;
    max-width: 500px;
    z-index: 10;
}

.system-header {
    display: flex;
    justify-content: space-between;
    font-size: 0.6rem;
    padding: 10px;
    border-bottom: 1px solid rgba(var(--cyber-blue-rgb), 0.3);
    margin-bottom: 30px;
    font-family: monospace;
    letter-spacing: 2px;
}

.header-tag.right { color: var(--cyber-danger); }

/* Logo Stylization */
.intro-logo {
    font-size: 2.2rem;
    font-weight: 900;
    text-align: center;
    letter-spacing: 8px;
    margin-bottom: 40px;
    color: #fff;
    text-shadow: 0 0 20px rgba(var(--cyber-blue-rgb), 0.5);
    position: relative;
}

.intro-logo span { color: var(--cyber-blue); }

/* Decryption Visual */
.decryption-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin: 40px 0;
}

.hex-column {
    font-family: monospace;
    font-size: 0.7rem;
    width: 80px;
    height: 150px;
    overflow: hidden;
    opacity: 0.4;
    word-break: break-all;
    line-height: 1.2;
    text-align: center;
    mask-image: linear-gradient(to bottom, transparent, black 20%, black 80%, transparent);
}

.core-node {
    position: relative;
    width: 140px;
    height: 140px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.node-rings .ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px solid transparent;
    border-radius: 50%;
}

.ring.r1 { width: 100%; height: 100%; border-top-color: var(--cyber-blue); animation: rotate_infinite 3s linear infinite; }
.ring.r2 { width: 80%; height: 80%; border-bottom-color: var(--cyber-danger); animation: rotate_infinite 2s linear infinite reverse; }
.ring.r3 { width: 60%; height: 60%; border-left-color: #fff; animation: rotate_infinite 5s linear infinite; }

.node-value {
    font-size: 1.5rem;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 0 10px var(--cyber-blue);
}

/* Status Box */
.status-box {
    background: rgba(var(--cyber-blue-rgb), 0.05);
    padding: 20px;
    border-left: 3px solid var(--cyber-blue);
    margin-bottom: 40px;
}

.status-label {
    font-size: 0.6rem;
    color: var(--cyber-danger);
    margin-bottom: 5px;
    font-family: monospace;
}

.intro-status {
    font-size: 0.9rem;
    letter-spacing: 1px;
    height: 1.2em;
}

/* Footer Info */
.footer-data {
    display: flex;
    justify-content: space-between;
    font-size: 0.6rem;
    font-family: monospace;
    opacity: 0.6;
}

.data-group { display: flex; flex-direction: column; gap: 5px; }

/* Global Animations */
@keyframes rotate_infinite {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

.scanline {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 50%, rgba(var(--cyber-blue-rgb), 0.05) 50.1%);
    background-size: 100% 4px;
    z-index: 100;
    pointer-events: none;
    opacity: 0.3;
}

.crt-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, transparent 70%, rgba(0,0,0,0.5) 100%);
    z-index: 101;
    pointer-events: none;
}

@media (max-width: 600px) {
    .hex-column { display: none; }
    .intro-logo { font-size: 1.5rem; }
    .core-node { width: 100px; height: 100px; }
}