style.css

/* Retro Terminal Theme */
:root {
    --primary: #00ff00;
    --primary-dark: #00cc00;
    --secondary: #0a0a0a;
    --accent: #00ff88;
    --text-primary: #00ff00;
    --text-secondary: #a0a0a0;
    --text-muted: #505050;
    --bg-dark: #000000;
    --bg-darker: #050505;
    --bg-light: #1a1a1a;
    --border-color: #00ff00;
}

[data-theme="light"] {
    --primary: #00cc00;
    --primary-dark: #009900;
    --secondary: #f0f0f0;
    --accent: #00cc66;
    --text-primary: #00cc00;
    --text-secondary: #404040;
    --text-muted: #a0a0a0;
    --bg-dark: #ffffff;
    --bg-darker: #f5f5f5;
    --bg-light: #e0e0e0;
    --border-color: #00cc00;
}

/* CRT Effect */
.retro-bg {
    background: 
        radial-gradient(ellipse at center, var(--bg-darker) 0%, var(--bg-dark) 100%),
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 2px,
            rgba(0, 255, 0, 0.03) 2px,
            rgba(0, 255, 0, 0.03) 4px
        );
    background-blend-mode: multiply;
    position: relative;
    color: var(--text-primary);
    font-family: 'Courier New', monospace;
}

.crt-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at center, transparent 0%, rgba(0, 0, 0, 0.3) 100%),
        repeating-linear-gradient(
            0deg,
            rgba(0, 255, 0, 0.05) 0px,
            transparent 1px,
            transparent 2px,
            rgba(0, 255, 0, 0.05) 3px
        );
    pointer-events: none;
    z-index: 1000;
    mix-blend-mode: screen;
}

.scanlines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 1px,
        rgba(0, 255, 0, 0.03) 1px,
        rgba(0, 255, 0, 0.03) 2px
    );
    pointer-events: none;
    z-index: 1001;
    animation: scanlines 8s linear infinite;
}

@keyframes scanlines {
    0% { transform: translateY(0); }
    100% { transform: translateY(10px); }
}

/* Glitch Effect */
.glitch {
    position: relative;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: bold;
    text-transform: uppercase;
}

.glitch::before,
.glitch::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.glitch::before {
    animation: glitch-1 0.5s infinite;
    color: #ff00ff;
    z-index: -1;
}

.glitch::after {
    animation: glitch-2 0.5s infinite;
    color: #00ffff;
    z-index: -2;
}

@keyframes glitch-1 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(-2px, 2px); }
    40% { transform: translate(-2px, -2px); }
    60% { transform: translate(2px, 2px); }
    80% { transform: translate(2px, -2px); }
}

@keyframes glitch-2 {
    0%, 100% { transform: translate(0); }
    20% { transform: translate(2px, 2px); }
    40% { transform: translate(2px, -2px); }
    60% { transform: translate(-2px, 2px); }
    80% { transform: translate(-2px, -2px); }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-darker);
    border: 1px solid var(--border-color);
}

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border: 1px solid var(--primary-dark);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Message Animations */
.message-group {
    opacity: 0;
    transform: translateY(20px);
    animation: messageAppear 0.3s ease-out forwards;
}

@keyframes messageAppear {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Button Press Effects */
.retro-button {
    position: relative;
    background: var(--primary);
    color: var(--bg-dark);
    border: none;
    padding: 0.75rem 1.5rem;
    font-family: 'Press Start 2P', cursive;
    font-size: 0.75rem;
    cursor: pointer;
    transition: all 0.1s;
    box-shadow: 0 4px 0 var(--primary-dark);
}

.retro-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 0 var(--primary-dark);
}

.retro-button:active {
    transform: translateY(4px);
    box-shadow: 0 0 0 var(--primary-dark);
}

/* Input Focus Effects */
.retro-input:focus {
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 15px var(--primary); }
    50% { box-shadow: 0 0 25px var(--primary); }
}

/* Theme Transition */
* {
    transition: background-color 0.3s, color 0.3s, border-color 0.3s;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .sidebar-collapsed {
        transform: translateX(-100%);
    }
    
    .sidebar-expanded {
        transform: translateX(0);
    }
    
    .mobile-hidden {
        display: none;
    }
    
    .mobile-full {
        width: 100%;
    }
}

/* Loading Animation */
.loading-dots {
    display: inline-block;
}

.loading-dots::after {
    content: '';
    animation: dots 1.5s infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* Status Indicators */
.status-online {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary);
}

.status-away {
    background: #ffaa00;
    box-shadow: 0 0 10px #ffaa00;
}

.status-offline {
    background: var(--text-muted);
}

/* Hover Effects */
.hover-glow:hover {
    filter: brightness(1.2);
    text-shadow: 0 0 10px var(--primary);
}

/* Terminal Cursor */
.terminal-cursor::after {
    content: '_';
    animation: blink 1s infinite;
}

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