:root {
    /* Dark Theme Defaults */
    --neon-green: #ebfaf3;
    --background-color: #0a0a0a;
    --text-color: #f0f6f3;
    --card-bg: rgba(0, 20, 15, 0.3);
    --border-color: #00ff88;
    --glow-effect: 0 0 15px rgba(0, 255, 136, 0.4);
    --code-bg: rgba(0, 30, 20, 0.3);
    
    /* Light Theme Overrides */
    --light-neon: #1a73e8;
    --light-background: #f5f5f5;
    --light-text: #2c3e50;
    --light-card-bg: rgba(7, 1, 1, 0.9);
    --light-border: #1a73e8;
    --light-glow: 0 0 15px rgba(26, 115, 232, 0.2);
    --light-code-bg: rgba(241, 243, 244, 0.9);

    --terminal-font: 'Courier New', monospace;
    --neon-green: #00ff88;
    --cyber-dark: #0a0a0a;
    --cyber-border: 1px solid var(--neon-green);

}

body {
    font-family: 'Courier New', monospace;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

/* Dark Mode Matrix Effect */
body:not(.light-mode)::before {
    content: '';
    position: fixed;
    width: 200%;
    height: 200%;
    background: 
        linear-gradient(transparent 90%, rgba(0, 255, 136, 0.05) 90%),
        repeating-linear-gradient(
            45deg,
            transparent 0%,
            transparent 2%,
            rgba(0, 255, 136, 0.02) 2%,
            rgba(0, 255, 136, 0.02) 4%
        );
    background-size: 4px 4px, 40px 40px;
    animation: matrix 40s linear infinite;
    z-index: -1;
}

/* Light Mode Overrides */
body.light-mode {
    --background-color: var(--light-background);
    --text-color: var(--light-text);
    --neon-green: var(--light-neon);
    --card-bg: var(--light-card-bg);
    --border-color: var(--light-border);
    --glow-effect: var(--light-glow);
    --code-bg: var(--light-code-bg);
}

body.light-mode::before {
    background: 
        linear-gradient(transparent 90%, rgba(26, 115, 232, 0.05) 90%),
        repeating-linear-gradient(
            45deg,
            transparent 0%,
            transparent 2%,
            rgba(26, 115, 232, 0.02) 2%,
            rgba(26, 115, 232, 0.02) 4%
        );
}

/* Theme Switch Button */
.theme-switch {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 10px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    z-index: 1000;
    transition: all 0.3s ease;
}

.theme-switch:hover {
    box-shadow: var(--glow-effect);
}

.theme-switch i {
    font-size: 1.2rem;
}

/* Updated Components */
header {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--glow-effect);
}

.topnav {
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--glow-effect);
}

.section, .step {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    box-shadow: var(--glow-effect);
}

button {
    background-color: rgba(0, 255, 136, 0.2);
    color: var(--text-color);
    border: 1px solid var(--border-color);
}

body.light-mode button {
    background-color: rgba(26, 115, 232, 0.1);
}

textarea, #hash-output {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-color);
}

pre, code {
    background: var(--code-bg) !important;
    border: 1px solid var(--border-color);
}

footer {
    background: var(--card-bg);
    border-top: 1px solid var(--border-color);
    box-shadow: var(--glow-effect);
}






* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--terminal-font);
}



/* Matrix Background Effect */
body::before {
    content: '';
    position: fixed;
    width: 200%;
    height: 200%;
    background: 
        linear-gradient(transparent 90%, rgba(0, 255, 136, 0.05) 90%),
        repeating-linear-gradient(
            45deg,
            transparent 0%,
            transparent 2%,
            rgba(0, 255, 136, 0.02) 2%,
            rgba(0, 255, 136, 0.02) 4%
        );
    background-size: 4px 4px, 40px 40px;
    animation: matrix 40s linear infinite;
    z-index: -1;
}

@keyframes matrix {
    from { transform: translateY(0); }
    to { transform: translateY(-50%); }
}

/* Header Styles */
.cyber-header {
    padding: 2rem;
    text-align: center;
    border-bottom: var(--cyber-border);
    box-shadow: var(--cyber-glow);
    margin-bottom: 2rem;
    position: relative;
}

.glitch-text {
    font-size: 2.5rem;
    text-shadow: 0 0 20px var(--neon-green);
    letter-spacing: 4px;
    position: relative;
    animation: glitch 2s infinite;
}

.glitch-text span {
    color: #ff003c;
}

.system-status {
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--neon-green);
    box-shadow: var(--cyber-glow);
}

.status-indicator.active {
    animation: pulse 1.5s infinite;
}

/* Main Grid Layout */
.cyber-grid {
    flex: 1;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1500px;
    margin: 0 auto;
    width: 95%;
}

/* Cyber Cards */
.cyber-card {
    background: rgba(0, 20, 15, 0.2);
    color: var(--text-color);

    border: var(--cyber-border);
    border-radius: 8px;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
    text-decoration: none;
}

.cyber-card:hover {
    transform: translateY(-5px) rotateX(3deg) rotateY(-2deg);
    box-shadow: var(--cyber-glow);
}

.cyber-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(0, 255, 136, 0.1) 50%,
        transparent 60%
    );
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cyber-card:hover::before {
    opacity: 1;
}

.card-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.cyber-card i {
    font-size: 2.5rem;
    color: var(--neon-green);
    filter: drop-shadow(0 0 5px var(--neon-green));
}

.card-footer {
    width: 100%;
    padding: 0.8rem;
    background: rgba(0, 30, 20, 0.3);
    border-top: var(--cyber-border);
    margin-top: auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.alert-level {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* Cryptography Section */
.crypto-container {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    background: rgba(0, 30, 20, 0.2);
    border: var(--cyber-border);
    border-radius: 8px;
    padding: 2rem;
}

.crypto-card {
    background: rgba(0, 40, 30, 0.3);
    border: 1px solid rgba(0, 255, 136, 0.3);
    transition: transform 0.3s ease;
}

.crypto-card:hover {
    transform: scale(1.02);
}

/* Footer Styles */
.cyber-footer {
    padding: 1.5rem;
    background: rgba(0, 20, 15, 0.3);
    border-top: var(--cyber-border);
    box-shadow: var(--cyber-glow);
}

.system-metrics {
    display: flex;
    justify-content: center;
    gap: 3rem;
    max-width: 1200px;
    margin: 0 auto;
}

.metric {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}

.led {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.led.green { background: var(--neon-green); }
.led.blue { background: #00a3ff; }
.led.pulse { animation: pulse 1.5s infinite; }

/* Animations */
@keyframes glitch {
    0% { text-shadow: 0 0 20px var(--neon-green); }
    95% { text-shadow: 0 0 20px var(--neon-green); }
    96% { text-shadow: -2px 0 #ff003c, 2px 0 var(--neon-green); }
    97% { text-shadow: 2px 0 #ff003c, -2px 0 var(--neon-green); }
    100% { text-shadow: 0 0 20px var(--neon-green); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Responsive Design */
@media (max-width: 768px) {
    .cyber-grid {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .crypto-container {
        grid-template-columns: 1fr;
        padding: 1rem;
    }

    .glitch-text {
        font-size: 1.8rem;
    }

    .system-metrics {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }
}