* {
    box-sizing: border-box;
    font-family: 'Space Grotesk', sans-serif;
}

body {
    margin: 0;
    background: #0a0a0a;
}

.font-mono {
    font-family: 'JetBrains Mono', monospace;
}

.glass-card {
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 1rem;
}

.gradient-text {
    background: linear-gradient(135deg, #1DA1F2 0%, #FF006E 50%, #39FF14 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-grid {
    background-image: 
        linear-gradient(rgba(29, 161, 242, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(29, 161, 242, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
}

.analyze-btn {
    background: linear-gradient(135deg, #1DA1F2 0%, #FF006E 100%);
    position: relative;
    overflow: hidden;
}

.analyze-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #FF006E 0%, #39FF14 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.analyze-btn:hover::before {
    opacity: 1;
}

.analyze-btn span,
.analyze-btn {
    position: relative;
    z-index: 1;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top-color: #1DA1F2;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.animate-fade-in {
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.personality-badge {
    background: linear-gradient(135deg, rgba(29, 161, 242, 0.2) 0%, rgba(255, 0, 110, 0.2) 100%);
    border: 2px solid rgba(29, 161, 242, 0.5);
    animation: pulse-glow 2s ease-in-out infinite;
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(29, 161, 242, 0.3);
    }
    50% {
        box-shadow: 0 0 30px rgba(255, 0, 110, 0.4);
    }
}

input::placeholder {
    color: rgba(255, 255, 255, 0.3);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

::-webkit-scrollbar-thumb {
    background: rgba(29, 161, 242, 0.5);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(29, 161, 242, 0.7);
}

/* Mobile responsiveness */
@media (max-width: 640px) {
    h1 {
        font-size: 2rem !important;
    }
    
    .glass-card {
        padding: 1rem;
    }
}