:root {
    --color-bg: #f8f9fa;
    --color-text: #1a1a1a;
    --color-card-bg: #ffffff;
    --color-footer: #e9ecef;
    --shadow: 0 8px 30px rgba(0,0,0,0.06);
}
[data-theme="dark"] {
    --color-bg: #1a1a1a;
    --color-text: #f0f0f0;
    --color-card-bg: #2a2a2a;
    --color-footer: #2a2a2a;
    --shadow: 0 8px 30px rgba(255,255,255,0.06);
}
body {
    background: var(--color-bg);
    color: var(--color-text);
    transition: background 0.3s, color 0.3s;
}
.header, .mobile-menu, .footer, .card {
    background: var(--color-card-bg);
    color: var(--color-text);
}
.footer {
    background: var(--color-footer);
}
.card {
    box-shadow: var(--shadow);
}

/* Тёмная тема для карточек */
[data-theme="dark"] .card,
[data-theme="dark"] .card-body,
[data-theme="dark"] .card-title,
[data-theme="dark"] .card-text {
}

[data-theme="dark"] .card .price,
[data-theme="dark"] .card .cost,
[data-theme="dark"] .card .card-price {
}

[data-theme="dark"] .card .btn-warning {
    background: #f39c12;
    color: #1a1a1a;
}

[data-theme="dark"] .card .btn-warning:hover {
    background: #e67e22;
    color: #fff;
}

/* Тёмная тема для карточек */
[data-theme="dark"] .card,
[data-theme="dark"] .card-body,
[data-theme="dark"] .card-title,
[data-theme="dark"] .card-text {
}

[data-theme="dark"] .card .price,
[data-theme="dark"] .card .cost,
[data-theme="dark"] .card .card-price {
}

[data-theme="dark"] .card .btn-warning {
    background: #f39c12;
    color: #1a1a1a;
}

[data-theme="dark"] .card .btn-warning:hover {
    background: #e67e22;
    color: #fff;
}

/* Тёмная тема для карточек */
[data-theme="dark"] .card,
[data-theme="dark"] .card-body,
[data-theme="dark"] .card-title,
[data-theme="dark"] .card-text {
    color: #f0f0f0;
}

[data-theme="dark"] .card .price,
[data-theme="dark"] .card .cost,
[data-theme="dark"] .card .card-price {
    color: #f39c12;
}

[data-theme="dark"] .card .btn-warning {
    background: #f39c12;
    color: #1a1a1a;
}

[data-theme="dark"] .card .btn-warning:hover {
    background: #e67e22;
    color: #fff;
}