/* ================================================
   Responsive Styles
   ================================================ */

/* ============================================
   TABLET LANDSCAPE (992px - 1199px)
   ============================================ */

@media (max-width: 1199px) {
    :root {
        --fs-5xl: 3rem;
        --fs-4xl: 2.5rem;
    }

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

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

    .product-card-content {
        grid-template-columns: 1fr;
    }

    .product-card-image {
        padding: var(--spacing-xl);
    }
}

/* ============================================
   TABLET PORTRAIT (768px - 991px)
   ============================================ */

@media (max-width: 991px) {
    section {
        padding: var(--spacing-3xl) 0;
    }

    .split-layout {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }

    .split-layout.reverse {
        direction: ltr;
    }

    .nav-links,
    .btn-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .hero-title {
        font-size: var(--fs-4xl);
    }

    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .product-overview {
        padding: var(--spacing-3xl) 0;
    }

    .feature-block {
        padding: var(--spacing-xl) 0;
    }

    .feature-block .split-layout {
        gap: var(--spacing-lg);
    }
}

/* ============================================
   MOBILE LARGE (576px - 767px)
   ============================================ */

@media (max-width: 767px) {
    :root {
        --fs-5xl: 2.5rem;
        --fs-4xl: 2rem;
        --fs-3xl: 1.75rem;
        --fs-2xl: 1.5rem;
        --header-height: 70px;
    }

    section {
        padding: var(--spacing-2xl) 0;
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .site-header {
        height: var(--header-height-mobile);
    }

    .main-nav {
        height: var(--header-height-mobile);
    }

    .mobile-nav-overlay {
        top: var(--header-height-mobile);
    }

    .hero {
        min-height: 90vh;
    }

    .hero-subtitle {
        font-size: var(--fs-base);
    }

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

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

    .benefit-card {
        padding: var(--spacing-lg);
    }

    .product-card-details {
        padding: var(--spacing-lg);
    }

    .product-card-badge {
        position: relative;
        display: block;
        text-align: center;
    }

    .faq-container {
        padding: 0;
    }

    .accordion-header {
        font-size: var(--fs-base);
        padding: var(--spacing-sm) 0;
    }

    .footer-links {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .link-separator {
        display: none;
    }

    .trust-badges {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* ============================================
   MOBILE (< 576px)
   ============================================ */

@media (max-width: 575px) {
    :root {
        --fs-5xl: 2rem;
        --fs-4xl: 1.75rem;
        --fs-3xl: 1.5rem;
    }

    .hero-title {
        font-size: var(--fs-3xl);
    }

    .btn-primary,
    .btn-secondary {
        padding: 14px 28px;
        font-size: var(--fs-xs);
    }

    .btn-lg {
        padding: 16px 32px;
        height: 52px;
    }

    .product-card-main {
        margin: 0 calc(var(--spacing-sm) * -1);
        border-left: none;
        border-right: none;
    }

    .price-value {
        font-size: var(--fs-3xl);
    }

    .cta-banner {
        padding: var(--spacing-xl) 0;
    }

    .cta-banner h3 {
        font-size: var(--fs-xl);
    }

    .section-label {
        font-size: 10px;
        letter-spacing: 2px;
    }

    .legal-content {
        padding: var(--spacing-xl) 0;
    }

    .legal-content h2 {
        font-size: var(--fs-xl);
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .site-header,
    .mobile-nav-overlay,
    .scroll-indicator,
    .btn,
    .cta-banner {
        display: none !important;
    }

    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }

    .hero {
        min-height: auto;
        padding: 20pt 0;
    }

    section {
        padding: 20pt 0;
        page-break-inside: avoid;
    }

    a {
        color: #000;
        text-decoration: underline;
    }

    a[href^="http"]::after {
        content: " (" attr(href) ")";
        font-size: 10pt;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .fade-up,
    .fade-in {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   HIGH CONTRAST MODE
   ============================================ */

@media (prefers-contrast: high) {
    :root {
        --color-accent: #FFD700;
        --color-text-light: #4A4A4A;
        --color-text-muted: #5A5A5A;
    }

    .btn-primary {
        border: 2px solid var(--color-primary);
    }

    .benefit-card {
        border-width: 2px;
    }
}