/* =============================================================
   VV Schierstein — Responsive Breakpoints
   Mobile-first approach
   ============================================================= */

/* === Mobile: <= 768px === */
@media screen and (max-width: 768px) {
    :root {
        --nav-height: 60px;
    }

    /* Hide desktop nav, show hamburger */
    .hamburger {
        display: flex;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background-color: var(--color-primary);
        border-top: 2px solid var(--color-accent);
        z-index: 99;
        padding: var(--spacing-sm) 0;
        box-shadow: var(--shadow-md);
    }

    .main-nav.is-open {
        display: block;
    }

    .nav-menu {
        flex-direction: column;
        gap: 0;
    }

    .nav-menu li {
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }

    .nav-menu a {
        padding: 1rem var(--spacing-md);
        font-size: 1.05rem;
    }

    .nav-menu .sub-menu {
        position: static;
        display: block;
        box-shadow: none;
        border-top: none;
        border-left: 3px solid var(--color-accent);
        margin-left: var(--spacing-md);
    }

    /* Language switcher mobile */
    .lang-switcher {
        display: none; /* Will be shown in mobile menu */
    }

    .main-nav.is-open + .lang-switcher,
    .main-nav .lang-switcher {
        display: flex;
    }

    /* Hero */
    .hero {
        height: clamp(280px, 50vh, 400px);
    }

    .hero-overlay h1 {
        font-size: clamp(1.5rem, 8vw, 2.5rem);
    }

    .hero-overlay p {
        font-size: 0.95rem;
        margin-bottom: var(--spacing-md);
    }

    /* Two column -> single column */
    .section-two-col {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Events grid -> single column */
    .events-grid {
        grid-template-columns: 1fr;
    }

    .events-archive-grid {
        grid-template-columns: 1fr;
    }

    /* Gallery grid -> 2 columns */
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 4px;
    }

    /* SL grid -> 1 column */
    .sl-grid {
        grid-template-columns: 1fr;
    }

    /* Vorstand grid -> 2 columns */
    .vorstand-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Kontakt grid -> single column */
    .kontakt-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Footer */
    .footer-inner {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .footer-menu {
        justify-content: center;
        gap: var(--spacing-sm);
    }

    /* Sections */
    .section {
        padding: var(--spacing-lg) 0;
    }

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

    /* Buttons full width on very small screens */
    .btn-large {
        width: 100%;
        text-align: center;
    }

    /* SL actions */
    .sl-actions {
        flex-direction: column;
    }

    /* Event meta bar */
    .event-meta-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }

    /* Event hero image height */
    .event-hero-image img {
        height: 200px;
    }
}

/* === Tablet: 769px - 1024px === */
@media screen and (min-width: 769px) and (max-width: 1024px) {
    /* Events: 2 columns */
    .events-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Gallery: 3 columns */
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* SL grid: 2 columns */
    .sl-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    /* Vorstand: 3 columns */
    .vorstand-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    /* Two col: narrow layout */
    .section-two-col {
        gap: var(--spacing-lg);
    }

    /* Kontakt grid */
    .kontakt-grid {
        grid-template-columns: 1fr;
    }
}

/* === Large screens: >= 1400px === */
@media screen and (min-width: 1400px) {
    :root {
        --max-width: 1320px;
    }
}

/* === Print === */
@media print {
    .site-header,
    .site-footer,
    .hamburger,
    #vvs-chatbot {
        display: none;
    }

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

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

/* === Reduced Motion (accessibility) === */
@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;
    }
}

/* === High Contrast Mode === */
@media (prefers-contrast: high) {
    :root {
        --color-primary:  #000080;
        --color-accent:   #FFD700;
        --color-bg:       #FFFFFF;
        --color-text:     #000000;
    }

    .btn-primary {
        border: 3px solid #000;
    }

    .event-card {
        border: 2px solid var(--color-accent);
    }
}