:root {
    --cyber-900: #0a0a0a;
    --cyber-800: #121212;
    --cyber-700: #1a1a1a;
    --matrix-500: #00d166;
    --matrix-400: #00e472;
    --matrix-600: #00b359;
    --matrix-300: #a0ffd0;
    --tech-blue: #0095da;
    --tech-purple: #8a2be2;
    --tech-cyan: #00ffff;
    --tech-gray: #e0e0e0;
    
}


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

html, body {
    width: 100%;
    min-height: 100vh;
    overflow-x: hidden;
    font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
    font-weight: 400;
    color: var(--tech-gray);
    background-color: var(--cyber-900);
    position: relative;
}

body {
    height: 100%;
    min-height: 100vh;
    display: flex;
    margin-top: 50px;
    position: relative;
    z-index: 10;
    background-color: var(--cyber-900);
    background-image: 
        radial-gradient(circle at center, rgba(0, 209, 102, 0.05) 0%, transparent 80%),
        linear-gradient(to right, rgba(10, 10, 10, 0.9), rgba(10, 10, 10, 0.9)),
        url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 0h100v100H0z' fill='%2300d166' fill-opacity='0.05'/%3E%3C/svg%3E");
    background-size: cover, cover, 20px 20px;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
    padding-bottom: 50px;

}

.main-container {
    max-width: 1200px;
    margin: 80px auto;
    width: 100%;
    flex: 1;
}


.background-words {
    position: fixed;
    top: 50px;
    left: 0;
    width: 100%;
    height: calc(100vh - 50px);
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: -100;
    overflow: hidden;
}

.words-side {
    width: 30%;
    height: 100%;
    position: relative;
}

.word-column {
    color: rgba(0, 228, 114, 0.7);
    text-shadow: 0 0 5px rgba(0, 228, 114, 0.5);
    opacity: 0;
    animation: wordFall linear infinite;
    writing-mode: vertical-rl;
    text-orientation: upright;
    white-space: nowrap;
    position: absolute;
    will-change: transform;
    font-family: "Lucida Sans Unicode", "Lucida Grande", sans-serif;
    line-height: 1.8;
    user-select: none;
    font-size: 16px;
}

@keyframes wordFall {
    0% { 
        transform: translateY(-100%);
        opacity: 0;
    }
    5% { opacity: 0.7; }
    90% { opacity: 0.7; }
    100% { 
        transform: translateY(100vh);
        opacity: 0;
    }
}


.master-card {
    background-color: rgba(20, 25, 20, 0.9);
    border: 1px solid #50a050;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 0 25px rgba(80, 160, 80, 0.1);
    margin-bottom: 30px;
    width: 100%;
}

.paragraph-card {
    background-color: rgba(15, 20, 15, 0.7);
    border-left: 3px solid #50a050;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 4px;
}

.paragraph-card:last-child {
    margin-bottom: 0;
}

.paragraph-card p {
    font-size: 1.05rem;
    color: #c0e0c0;
    margin-bottom: 10px;
}

.paragraph-card h3 {
    color: #70d070;
    margin-bottom: 15px;
    font-size: 1.1rem;
    font-weight: 200;
    font-family: 'Russo One', sans-serif;
}

.history-heading {
    position: relative;
    z-index: 0;
    font-family: 'Russo One', sans-serif;
    font-size: 32px;
    color: #39d15a;
    text-align: center;
    margin: 0 auto 40px;
    text-shadow: 0 0 30px rgba(144, 255, 163, 0.521);
    white-space: pre-wrap;
}


@media (max-width: 768px) {
    .tech-header h1 {
        font-size: 1.8rem;
    }
    
    .master-card {
        padding: 15px;
    }
    
    .paragraph-card {
        padding: 15px;
    }
}

@media (max-width: 400px) {
    .main-container {
        padding: 15px;
    }
    
    .master-card {
        padding: 15px;
        border-radius: 6px;
    }
    
    .paragraph-card {
        padding: 15px;
        margin-bottom: 15px;
    }
    
    .paragraph-card p {
        font-size: 0.95rem;
        line-height: 1.5;
    }
    
    .paragraph-card h3 {
        font-size: 1.1rem;
        margin-bottom: 10px;
    }
}

@media (min-width: 400px) and (max-width: 768px) {
    .main-container {
        max-width: 90%;
        padding: 25px;
    }
    
    .master-card {
        padding: 20px;
    }
    
    .paragraph-card {
        padding: 18px;
    }
    
    .paragraph-card p {
        font-size: 1.05rem;
    }
    
    .paragraph-card h3 {
        font-size: 1.2rem;
    }

}

@media (min-width: 768px) {
    .main-container {
        max-width: 900px;
        padding: 30px;
    }   
    .master-card {
        padding: 30px;
    }
    
    .paragraph-card {
        padding: 25px;
    }
    
    .paragraph-card p {
        font-size: 1.1rem;
    }
    
    .paragraph-card h3 {
        font-size: 1.3rem;
    }
}