:root {
    --primary-purple: #8b5cf6;
    --secondary-purple: #7c3aed;
    --accent-teal: #06b6d4;
    --dark-bg: #0f0e17;
    --darker-bg: #010101;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
}

.heading-font {
    font-family: 'Space Grotesk', sans-serif;
}

.gradient-bg {
    background: linear-gradient(135deg, var(--darker-bg) 0%, var(--dark-bg) 50%, #1e1b4b 100%);
}

.hero-gradient {
    background: linear-gradient(135deg, var(--primary-purple) 0%, var(--accent-teal) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.card-glow {
    box-shadow: 0 0 20px rgba(139, 92, 246, 0.1);
    transition: all 0.3s ease;
    border: 1px solid rgba(139, 92, 246, 0.1);
}

.card-glow:hover {
    box-shadow: 0 0 40px rgba(139, 92, 246, 0.2);
    transform: translateY(-5px);
    border-color: var(--primary-purple);
}

.nav-blur {
    backdrop-filter: blur(20px);
    background: rgba(15, 14, 23, 0.8);
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
}

.cyber-border {
    position: relative;
}

.cyber-border::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, var(--primary-purple), var(--accent-teal));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.message-bubble {
    max-width: 80%;
    border-radius: 1.5rem;
    padding: 1rem 1.5rem;
    margin-bottom: 1rem;
    position: relative;
}

.message-bubble::after {
    content: '';
    position: absolute;
    bottom: -10px;
    width: 20px;
    height: 20px;
    background: inherit;
    clip-path: polygon(0 0, 100% 0, 100% 100%);
}

.message-in {
    background: rgba(139, 92, 246, 0.2);
    border: 1px solid rgba(139, 92, 246, 0.3);
    margin-right: auto;
    border-bottom-left-radius: 0;
}

.message-out {
    background: rgba(6, 182, 212, 0.2);
    border: 1px solid rgba(6, 182, 212, 0.3);
    margin-left: auto;
    border-bottom-right-radius: 0;
}

.chat-container {
    background: radial-gradient(circle at 20% 30%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
                radial-gradient(circle at 80% 70%, rgba(6, 182, 212, 0.15) 0%, transparent 50%);
}

.typing-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--accent-teal);
    margin-right: 4px;
    animation: typing-animation 1.4s infinite ease-in-out;
}

.typing-indicator:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing-animation {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-5px); }
}