/**
 * Responsive CSS - Breakpoints: 640, 768, 1024, 1280
 * 
 * @package Smartteller
 * @version 2.0.0
 */

/* ============================================
   BREAKPOINT: 640px (sm)
   ============================================ */
@media (min-width: 640px) {
    
    /* Container */
    :root {
        --container-padding: 1.5rem;
    }
    
    /* Grids */
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .rezepte-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .staedte-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .affiliate-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .blog-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .quick-links-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Hero */
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    /* Steps */
    .steps-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Nährwerte */
    .naehrwerte-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    /* Archive */
    .letter-group {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
    
    /* Sticky Mobile CTA */
    .sticky-mobile-cta {
        display: block;
    }
}

/* ============================================
   BREAKPOINT: 768px (md)
   ============================================ */
@media (min-width: 768px) {
    
    /* Container */
    :root {
        --container-padding: 2rem;
        --section-py-mobile: 4rem;
    }
    
    /* Section Headers */
    .section-title {
        font-size: var(--text-4xl);
    }
    
    /* Hero */
    .hero-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-12);
    }
    
    .hero-title {
        font-size: var(--text-5xl);
    }
    
    .phone-mockup-wrapper {
        width: 320px;
    }
    
    /* App Download */
    .app-download-grid {
        grid-template-columns: 1fr auto auto;
        gap: var(--space-8);
    }
    
    /* FAQ */
    .faq-grid {
        grid-template-columns: 1fr 2fr;
        align-items: start;
    }
    
    .faq-visual {
        position: sticky;
        top: var(--space-8);
    }
    
    /* Single Rezept */
    .rezept-header-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .rezept-content-grid {
        grid-template-columns: 1fr 300px;
    }
    
    /* Single Stadt */
    .stadt-header-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Archive */
    .archive-stats {
        gap: var(--space-12);
    }
    
    /* 404 */
    .error-404-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    /* Footer */
    .footer-grid {
        grid-template-columns: 2fr 1fr 1fr 1fr;
    }
    
    .footer-brand {
        grid-column: auto;
    }
    
    .footer-bottom-grid {
        flex-direction: row;
        justify-content: space-between;
        text-align: left;
    }
    
    /* Navigation */
    .main-nav {
        display: block;
    }
    
    .mobile-menu-toggle {
        display: none;
    }
    
    .header-cta {
        display: block;
    }
    
    /* Logo */
    .logo-desktop {
        display: block;
    }
    
    .logo-mobile {
        display: none;
    }
    
    /* Sticky CTA */
    .sticky-mobile-cta {
        display: none;
    }
}

/* ============================================
   BREAKPOINT: 1024px (lg)
   ============================================ */
@media (min-width: 1024px) {
    
    /* Container */
    :root {
        --container-padding: 2rem;
        --section-py-desktop: 5rem;
    }
    
    .section-padding {
        padding-top: var(--section-py-desktop);
        padding-bottom: var(--section-py-desktop);
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Rezepte */
    .rezepte-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .rezepte-grid.small-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Städte */
    .staedte-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Affiliate */
    .affiliate-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Blog */
    .blog-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Shops */
    .shops-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Archive */
    .letter-group {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* Hero */
    .hero-title {
        font-size: var(--text-6xl);
    }
    
    .phone-mockup-wrapper {
        width: 340px;
    }
}

/* ============================================
   BREAKPOINT: 1280px (xl)
   ============================================ */
@media (min-width: 1280px) {
    
    /* Container max width reached */
    
    /* Features */
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--space-8);
    }
    
    /* Hero spacing */
    .hero-grid {
        gap: var(--space-16);
    }
    
    /* Archive filter */
    .archive-filter {
        flex-wrap: nowrap;
    }
    
    /* Stadt grid larger gap */
    .staedte-grid {
        gap: var(--space-8);
    }
}

/* ============================================
   MOBILE SPECIFIC (max-width: 767px)
   ============================================ */
@media (max-width: 767px) {
    
    /* Hide desktop elements */
    .logo-desktop,
    .main-nav,
    .header-cta {
        display: none;
    }
    
    /* Show mobile elements */
    .logo-mobile,
    .mobile-menu-toggle {
        display: flex;
    }
    
    /* Sticky CTA visible */
    .sticky-mobile-cta {
        display: block;
    }
    
    /* Hero adjustments */
    .hero-title {
        font-size: var(--text-3xl);
    }
    
    .hero-subtitle {
        font-size: var(--text-base);
    }
    
    /* Phone mockup smaller */
    .phone-mockup-wrapper {
        width: 240px;
    }
    
    /* Steps stack */
    .steps-grid {
        gap: var(--space-6);
    }
    
    .step-visual {
        min-height: 160px;
    }
    
    /* Benefits */
    .benefits-list {
        gap: var(--space-3);
    }
    
    /* App download stack */
    .app-download-grid {
        text-align: center;
    }
    
    .app-download-stores {
        align-items: center;
    }
    
    /* FAQ */
    .faq-visual {
        margin-bottom: var(--space-4);
    }
    
    .faq-visual .restemonster-img {
        width: 100px;
    }
    
    /* Single rezept stack */
    .rezept-header-grid,
    .rezept-content-grid,
    .stadt-header-grid {
        grid-template-columns: 1fr;
    }
    
    /* Rezept meta wrap */
    .rezept-meta-bar {
        gap: var(--space-2);
    }
    
    .meta-item {
        font-size: var(--text-xs);
    }
    
    /* Budget table scroll */
    .budget-table-wrapper {
        margin: 0 calc(-1 * var(--container-padding));
        padding: 0 var(--container-padding);
    }
    
    /* Archive alphabet nav scroll */
    .alphabet-nav {
        overflow-x: auto;
        flex-wrap: nowrap;
        -webkit-overflow-scrolling: touch;
    }
    
    .alphabet-links {
        flex-wrap: nowrap;
    }
    
    /* Footer stack */
    .footer-grid {
        gap: var(--space-6);
    }
    
    .footer-newsletter {
        margin-top: var(--space-2);
    }
    
    .newsletter-form {
        flex-direction: column;
    }
    
    /* 404 */
    .error-code {
        font-size: var(--text-5xl);
    }
    
    /* Floating monster position */
    .restemonster-float {
        bottom: 80px; /* Above sticky CTA */
        right: var(--space-4);
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .float-element,
    .sparkle,
    .restemonster-float-btn,
    .app-download-monster {
        animation: none !important;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .site-header,
    .site-footer,
    .ad-section,
    .sticky-mobile-cta,
    .restemonster-float,
    .cookie-banner,
    .mobile-menu-toggle {
        display: none !important;
    }
    
    .site-main {
        min-height: auto;
    }
    
    a {
        text-decoration: underline;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
        font-size: 0.8em;
        color: var(--text-secondary);
    }
}