.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-base);
    border: none;
    gap: var(--space-sm);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    white-space: nowrap;
}

.btn-primary {
    background: var(--grad-neon);
    color: var(--color-text-inverse);
    box-shadow: var(--glow-primary);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(var(--color-primary-rgb), 0.6);
}

.btn-secondary {
    background: var(--color-surface-brighter);
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-surface-hover);
    border-color: var(--color-primary);
    box-shadow: var(--glow-primary);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-outline:hover {
    background: rgba(var(--color-primary-rgb), 0.1);
    box-shadow: var(--glow-primary);
}

.btn-ghost {
    background: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-dim);
}

.btn-ghost:hover {
    color: var(--color-text);
    background: rgba(var(--color-primary-rgb), 0.05);
    border-color: rgba(var(--color-primary-rgb), 0.2);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-full {
    width: 100%;
}

.btn-capsule {
    border-radius: var(--radius-full);
}

/* Specific Neon Button Effect */
.btn-neon {
    position: relative;
    overflow: hidden;
    background: transparent;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    z-index: 1;
}

.btn-neon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--grad-neon);
    transition: 0.5s;
    z-index: -1;
}

.btn-neon:hover {
    color: var(--color-text-inverse);
}

.btn-neon:hover::before {
    left: 0;
}

.btn-glow {
    box-shadow: var(--glow-button);
}

.btn-glow:hover {
    box-shadow: 0 0 35px rgba(var(--color-primary-rgb), 0.7);
}