@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&family=Space+Grotesk:wght@700;900&display=swap');

:root {
    --void-black: #0A0E12;
    --electric-blue: #00D1FF;
    --architect-gold: #xFFFFD700;
    --deep-rose: #xFFFF4D67;
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

body {
    background-color: var(--void-black);
    color: #ffffff;
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3 {
    font-family: 'Space Grotesk', sans-serif;
    text-transform: uppercase;
}

/* --- THE ECHO BACKGROUND ANIMATION --- */
.neural-bg {
    position: fixed;
    top: 0; left: 0; width: 100vw; height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(circle at top right, rgba(0, 209, 255, 0.15), transparent 40%),
                radial-gradient(circle at bottom left, rgba(255, 215, 0, 0.1), transparent 40%);
}

.ripple {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 50%;
    border: 1px solid rgba(0, 209, 255, 0.5);
    animation: echoRipple 4s infinite cubic-bezier(0.1, 0.8, 0.3, 1);
    opacity: 0;
}
.ripple:nth-child(2) { animation-delay: 1s; }
.ripple:nth-child(3) { animation-delay: 2s; }

@keyframes echoRipple {
    0% { width: 0; height: 0; opacity: 1; border-width: 3px; }
    100% { width: 100vw; height: 100vw; opacity: 0; border-width: 0px; }
}

/* --- GLASSMORPHISM COMPONENTS --- */
.glass-container {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
}

.nav {
    display: flex;
    justify-content: space-between;
    padding: 30px 50px;
    align-items: center;
}
.nav-logo { font-family: 'Space Grotesk'; font-weight: 900; letter-spacing: 4px; color: var(--electric-blue); text-decoration: none; font-size: 20px; }
.nav-links a { color: rgba(255,255,255,0.6); text-decoration: none; margin-left: 30px; font-size: 12px; letter-spacing: 1px; transition: 0.3s; }
.nav-links a:hover { color: var(--architect-gold); }

/* --- BUTTONS --- */
.btn {
    display: inline-block;
    padding: 16px 32px;
    background: var(--electric-blue);
    color: var(--void-black);
    font-family: 'Space Grotesk';
    font-weight: 900;
    letter-spacing: 2px;
    text-decoration: none;
    border-radius: 8px;
    transition: 0.3s;
    border: none;
    cursor: pointer;
}
.btn:hover {
    box-shadow: 0 0 20px rgba(0, 209, 255, 0.4);
    transform: translateY(-2px);
}
.btn-gold { background: var(--architect-gold); }
.btn-gold:hover { box-shadow: 0 0 20px rgba(255, 215, 0, 0.4); }
.btn-danger { background: transparent; border: 1px solid var(--deep-rose); color: var(--deep-rose); }
.btn-danger:hover { background: var(--deep-rose); color: #000; box-shadow: 0 0 20px rgba(255, 77, 103, 0.4); }