/* ==========================================================================
   PairCoder Utility Styles
   Helpers, Accessibility, Responsive Breakpoints
   ========================================================================== */

/* --------------------------------------------------------------------------
   Accessibility Helpers
   -------------------------------------------------------------------------- */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* --------------------------------------------------------------------------
   Focus Visible — keyboard navigation accessibility
   -------------------------------------------------------------------------- */
.btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

.pricing-preview-card:focus-within,
.pricing-card:focus-within,
.testimonial-card:focus-within,
.quote-card:focus-within,
.step-card:focus-within {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Content Visibility — skip rendering for below-fold sections
   -------------------------------------------------------------------------- */
#testimonials,
#pricing {
    content-visibility: auto;
    contain-intrinsic-size: 0 600px;
}

.pricing-faq,
.cta-section {
    content-visibility: auto;
    contain-intrinsic-size: 0 400px;
}

/* --------------------------------------------------------------------------
   Responsive - Tablet (max-width: 1024px)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-cta {
        justify-content: center;
    }

    .hero-visual {
        display: none;
    }

    .scarcity-banner {
        justify-content: center;
        text-align: center;
        flex-direction: column;
    }

    .pain-points {
        grid-template-columns: 1fr;
    }

    .solution-grid {
        grid-template-columns: 1fr;
    }

    .steps-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: 1fr;
    }

    .quotes-grid {
        grid-template-columns: 1fr;
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* --------------------------------------------------------------------------
   Responsive - Mobile (max-width: 768px)
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .cta-section h2 {
        font-size: 2rem;
    }

    .footer-top {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }

    .footer-social {
        justify-content: center;
    }

    .footer-copy {
        flex-wrap: wrap;
        justify-content: center;
    }

    .steps-grid {
        grid-template-columns: 1fr;
    }

    .stats-bar {
        gap: 24px;
    }

    .stat-value {
        font-size: 2rem;
    }
}