:root {
    --ei-primary: #2563eb;
    --ei-primary-hover: #1d4ed8;
    --ei-primary-light: #dbeafe;
    --ei-bg-page: #f8fafc;
    --ei-bg-card: #ffffff;
    --ei-text-main: #0f172a;
    --ei-text-muted: #475569;
    --ei-border: gray;
    --ei-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --ei-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --ei-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --ei-radius: 0.5em;
    --ei-transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.ei-pricing-wrapper {
    padding: 4rem 1rem;
    color: var(--ei-text-main);
    line-height: 1.5;
}

    .ei-pricing-wrapper * {
        box-sizing: border-box;
        margin: 0;
        padding: 0;
    }

.ei-pricing-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.ei-pricing-title {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.75rem;
    letter-spacing: -0.025em;
}

.ei-pricing-subtitle {
    color: var(--ei-text-muted);
    font-size: 1.125rem;
}

/* Сетка карточек */
.ei-pricing-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.ei-pricing-card {
    background: var(--surface-light);
    border: 1px solid var(--ei-border);
    border-radius: var(--ei-radius);
    padding: 2rem;
    width: 100%;
    max-width: 340px;
    text-align: center;
    box-shadow: var(--ei-shadow-md);
    transition: var(--ei-transition);
    position: relative;
    display: flex;
    flex-direction: column;
    z-index: 1;
}

    .ei-pricing-card:hover {
        transform: translateY(-4px);
        box-shadow: var(--ei-shadow-lg);
    }

    .ei-pricing-card.ei-featured {
        border: 2px solid var(--ei-primary);
        box-shadow: var(--ei-shadow-lg);
        transform: scale(1.03);
        z-index: 2;
    }

        .ei-pricing-card.ei-featured:hover {
            transform: scale(1.03) translateY(-4px);
        }

.ei-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--ei-primary);
    color: #fff;
    padding: 0.25rem 0.875rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    white-space: nowrap;
    box-shadow: var(--ei-shadow-sm);
}

.ei-plan-name {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.ei-price {
    font-size: 2.25rem;
    font-weight: 800;
    margin: 1rem 0 1.5rem;
    color: white;
    letter-spacing: -0.025em;
}

.ei-period {
    font-size: 1rem;
    font-weight: 400;
    color: var(--ei-text-muted);
    margin-left: 0.25rem;
}

.ei-features {
    list-style: none;
    text-align: left;
    flex-grow: 1;
}

    .ei-features li {
        padding: 0.125rem 0;
        color: silver;
        display: flex;
        align-items: center;
        gap: 0.5rem;
        font-size: 0.95rem;
    }

        .ei-features li:last-child {
            border-bottom: none;
        }

        .ei-features li::before {
            content: "✓";
            color: var(--ei-primary);
            font-weight: 700;
            flex-shrink: 0;
            font-size: 1.1em;
        }

/* Адаптивность */
@media (max-width: 768px) {
    .ei-pricing-wrapper {
        padding: 2.5rem 1rem;
    }

    .ei-pricing-title {
        font-size: 1.75rem;
    }

    .ei-pricing-grid {
        gap: 1.5rem;
    }

    .ei-pricing-card {
        max-width: 100%;
    }

        .ei-pricing-card.ei-featured {
            transform: none;
        }

            .ei-pricing-card.ei-featured:hover {
                transform: translateY(-4px);
            }

    .ei-price {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .ei-pricing-title {
        font-size: 1.5rem;
    }

    .ei-price {
        font-size: 1.875rem;
    }

    .ei-plan-name {
        font-size: 1.25rem;
    }
}

/* Поддержка prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
    .ei-pricing-card,
    .ei-btn {
        transition: none !important;
        transform: none !important;
    }
}