*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    background: #fff;
    color: #000;
    font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* Nav */
.nav {
    width: 100%;
    padding: 24px 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav__inner {
    width: 100%;
    max-width: 1100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav__brand {
    display: inline-flex;
    align-items: center;
    height: 24px;
}

.nav__brand img { height: 24px; width: auto; }

.nav__links {
    display: flex;
    align-items: center;
    gap: 24px;
}

.nav__back {
    font-family: "Inter", sans-serif;
    font-weight: 500;
    font-size: 14px;
    color: rgba(0,0,0,0.5);
    transition: color 0.15s ease;
}

.nav__back:hover { color: #000; }

.nav__cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border-radius: 99px;
    padding: 12px 28px;
    font-family: "Inter", sans-serif;
    font-weight: 700;
    font-size: 13px;
    line-height: 1;
    background: #000;
    color: #fff;
    border: none;
    cursor: pointer;
    transition: transform 0.15s ease, opacity 0.15s ease;
    white-space: nowrap;
}

.nav__cta:hover {
    transform: translateY(-1px);
    opacity: 0.9;
}

/* Breadcrumbs */
.breadcrumbs {
    width: 100%;
    padding: 0 40px;
    display: flex;
    justify-content: center;
}

.breadcrumbs__inner {
    width: 100%;
    max-width: 720px;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: "Inter", sans-serif;
    font-size: 13px;
    color: rgba(0,0,0,0.4);
    padding: 16px 0 0;
}

.breadcrumbs a {
    color: rgba(0,0,0,0.4);
    transition: color 0.15s ease;
}

.breadcrumbs a:hover { color: #000; }

.breadcrumbs__sep { margin: 0 2px; }

.breadcrumbs__current { color: rgba(0,0,0,0.7); }

/* Footer */
.footer {
    width: 100%;
    padding: 40px;
    display: flex;
    justify-content: center;
    border-top: 1px solid #f0f0f0;
}

.footer__inner {
    width: 100%;
    max-width: 1100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.footer__copy {
    font-family: "Inter", sans-serif;
    font-size: 13px;
    color: rgba(0,0,0,0.4);
}

.footer__links {
    display: flex;
    gap: 24px;
}

.footer__link {
    font-family: "Inter", sans-serif;
    font-size: 13px;
    color: rgba(0,0,0,0.4);
    transition: color 0.15s ease;
}

.footer__link:hover { color: #000; }

/* Tag colors */
.tag-product {
    background: rgba(126, 199, 198, 0.15);
    color: #4a9e9d;
}

.tag-guide {
    background: rgba(252, 39, 136, 0.1);
    color: #d4236f;
}

.tag-tips {
    background: rgba(252, 195, 39, 0.15);
    color: #b38a0a;
}

.tag-news {
    background: rgba(0,0,0,0.06);
    color: rgba(0,0,0,0.55);
}

/* Responsive shared */
@media (max-width: 640px) {
    .nav { padding: 16px 20px; }
    .breadcrumbs { padding: 0 20px; }
    .footer { padding: 24px 20px; }

    .footer__inner {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
}