/* How to Trade Section */
.trade {
    padding: var(--spacing-5xl) 0;
    background-color: var(--color-bg-primary);
}

.trade .container {
    max-width: 900px;
}

/* Steps Container */
.trade__steps {
    margin: var(--spacing-4xl) 0;
}

/* Individual Step */
.step {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-xl);
    padding: var(--spacing-2xl);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-base);
    background-color: var(--color-bg-primary);
    transition: all var(--duration-base) var(--ease-out);
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.step:last-child {
    margin-bottom: 0;
}

.step:hover {
    border-color: var(--color-border-dark);
    transform: translateX(8px);
    box-shadow: var(--shadow-base);
}

/* Step Number */
.step__number {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-text-primary);
    color: var(--color-bg-primary);
    font-family: var(--font-family-heading);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    border-radius: 50%;
    transition: all var(--duration-base) var(--ease-out);
}

.step:hover .step__number {
    transform: scale(1.1);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    border: 2px solid var(--color-text-primary);
}

/* Step Content */
.step__content {
    flex: 1;
}

.step__title {
    font-family: var(--font-family-heading);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
    line-height: var(--line-height-tight);
}

.step__description {
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
    margin: 0;
}

.step__link {
    color: var(--color-text-primary);
    text-decoration: underline;
    font-weight: var(--font-weight-medium);
    transition: color var(--duration-base) var(--ease-out);
}

.step__link:hover {
    color: var(--color-text-secondary);
}

/* Connection Lines */
.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 46px;
    bottom: -var(--spacing-lg);
    width: 2px;
    height: var(--spacing-lg);
    background-color: var(--color-border);
    z-index: 1;
}

/* Note Section */
.trade__note {
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border: var(--border-width) solid var(--color-border);
    border-radius: var(--radius-base);
    border-left: 4px solid var(--color-text-primary);
}

.trade__note p {
    margin: 0;
    font-size: var(--font-size-base);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-secondary);
}

.trade__note strong {
    color: var(--color-text-primary);
    font-weight: var(--font-weight-semibold);
}

/* Responsive Design */
@media (max-width: 768px) {
    .trade {
        padding: var(--spacing-4xl) 0;
    }
    
    .step {
        flex-direction: column;
        gap: var(--spacing-md);
        padding: var(--spacing-lg);
        text-align: center;
    }
    
    .step:hover {
        transform: translateY(-4px);
    }
    
    .step__number {
        align-self: center;
        width: 40px;
        height: 40px;
        font-size: var(--font-size-base);
    }
    
    .step__title {
        font-size: var(--font-size-lg);
        text-align: center;
    }
    
    .step__description {
        text-align: center;
        font-size: var(--font-size-sm);
    }
    
    /* Hide connection lines on mobile */
    .step:not(:last-child)::after {
        display: none;
    }
    
    .trade__note {
        margin-top: var(--spacing-2xl);
        padding: var(--spacing-md);
    }
    
    .trade__note p {
        font-size: var(--font-size-sm);
    }
}

@media (max-width: 480px) {
    .step {
        padding: var(--spacing-md);
    }
    
    .step__number {
        width: 36px;
        height: 36px;
        font-size: var(--font-size-sm);
    }
    
    .step__title {
        font-size: var(--font-size-base);
    }
    
    .step__description {
        font-size: var(--font-size-xs);
    }
}

/* Tablet styles */
@media (min-width: 769px) and (max-width: 1024px) {
    .step {
        padding: var(--spacing-xl);
    }
    
    .step__number {
        width: 44px;
        height: 44px;
    }
    
    .step__title {
        font-size: var(--font-size-lg);
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .step {
        border-width: var(--border-width-thick);
    }
    
    .step:hover {
        background-color: var(--color-text-primary);
        color: var(--color-bg-primary);
    }
    
    .step:hover .step__title,
    .step:hover .step__description {
        color: var(--color-bg-primary);
    }
    
    .step:hover .step__number {
        background-color: var(--color-bg-primary);
        color: var(--color-text-primary);
        border-color: var(--color-bg-primary);
    }
    
    .trade__note {
        border-left-width: 6px;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    .step {
        transition: none;
    }
    
    .step:hover {
        transform: none;
    }
    
    .step__number {
        transition: none;
    }
    
    .step:hover .step__number {
        transform: none;
    }
}

/* Print styles */
@media print {
    .trade {
        padding: var(--spacing-lg) 0;
    }
    
    .step {
        break-inside: avoid;
        box-shadow: none;
        transform: none;
        page-break-inside: avoid;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
}

/* Focus styles for accessibility */
.step:focus-within {
    outline: 2px solid var(--color-text-primary);
    outline-offset: 2px;
}

/* Animation for steps appearing */
.step {
    opacity: 0;
    transform: translateY(20px);
    animation: slideInUp 0.6s ease-out forwards;
}

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.2s; }
.step:nth-child(3) { animation-delay: 0.3s; }

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

@media (prefers-reduced-motion: reduce) {
    .step {
        animation: none;
        opacity: 1;
        transform: none;
    }
}