/**
 * Schöne Beiträge - Frontend Stylesheet
 * Modernes, elegantes Design mit blauer Akzentfarbe
 */

/* ================================================
   CSS Variablen & Reset
================================================ */
.sb-container {
    --sb-blau-primary: #2563eb;
    --sb-blau-dunkel: #1e3a8a;
    --sb-blau-hell: #3b82f6;
    --sb-blau-pastell: #dbeafe;
    --sb-blau-ultra-hell: #eff6ff;
    --sb-grau-900: #0f172a;
    --sb-grau-700: #334155;
    --sb-grau-500: #64748b;
    --sb-grau-300: #cbd5e1;
    --sb-grau-100: #f1f5f9;
    --sb-grau-50: #f8fafc;
    --sb-weiss: #ffffff;
    --sb-akzent: #06b6d4;
    
    --sb-font-display: 'Fraunces', Georgia, serif;
    --sb-font-body: 'Manrope', -apple-system, BlinkMacSystemFont, sans-serif;
    
    --sb-radius-sm: 6px;
    --sb-radius-md: 12px;
    --sb-radius-lg: 20px;
    --sb-radius-xl: 28px;
    
    --sb-schatten-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
    --sb-schatten-md: 0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --sb-schatten-lg: 0 20px 25px -5px rgba(37, 99, 235, 0.08), 0 8px 10px -6px rgba(37, 99, 235, 0.05);
    --sb-schatten-hover: 0 25px 50px -12px rgba(37, 99, 235, 0.25);
    
    --sb-ease: cubic-bezier(0.16, 1, 0.3, 1);
    
    font-family: var(--sb-font-body);
    color: var(--sb-grau-900);
    max-width: 1280px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    box-sizing: border-box;
}

.sb-container *,
.sb-container *::before,
.sb-container *::after {
    box-sizing: border-box;
}

/* ================================================
   Grid-Layout
================================================ */
.sb-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 2rem;
}

/* Bei "aktuell" (3 Beiträge) etwas andere Darstellung */
.sb-typ-aktuell .sb-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    max-width: 1200px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .sb-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    .sb-container {
        padding: 2rem 1rem;
    }
}

/* ================================================
   Karte - Basis
================================================ */
.sb-karte {
    background: var(--sb-weiss);
    border-radius: var(--sb-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    position: relative;
    transition: transform 0.5s var(--sb-ease), box-shadow 0.5s var(--sb-ease);
    border: 1px solid var(--sb-grau-100);
    box-shadow: var(--sb-schatten-sm);
}

.sb-karte::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--sb-blau-dunkel), var(--sb-blau-primary), var(--sb-akzent));
    opacity: 0;
    transition: opacity 0.4s var(--sb-ease);
    z-index: 2;
}

.sb-karte:hover {
    transform: translateY(-6px);
    box-shadow: var(--sb-schatten-hover);
    border-color: var(--sb-blau-pastell);
}

.sb-karte:hover::before {
    opacity: 1;
}

/* ================================================
   Karte - Bild
================================================ */
.sb-karte-bild {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 10;
    background: var(--sb-grau-100);
}

.sb-karte-bild .sb-bild-link {
    display: block;
    width: 100%;
    height: 100%;
}

.sb-featured-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s var(--sb-ease);
    display: block;
}

.sb-karte:hover .sb-featured-image {
    transform: scale(1.05);
}

.sb-galerie-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: rgba(37, 99, 235, 0.95);
    color: var(--sb-weiss);
    padding: 0.5rem 0.875rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.35);
}

/* ================================================
   Karte - Inhalt
================================================ */
.sb-karte-inhalt {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex: 1;
    gap: 1rem;
}

.sb-karte-meta {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.sb-datum {
    font-size: 0.8rem;
    color: var(--sb-grau-500);
    font-weight: 500;
    letter-spacing: 0.02em;
}

.sb-kategorie {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    background: var(--sb-blau-ultra-hell);
    color: var(--sb-blau-dunkel);
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--sb-blau-pastell);
}

.sb-karte-titel {
    margin: 0;
    font-family: var(--sb-font-display);
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: -0.015em;
    color: var(--sb-grau-900);
}

.sb-karte-titel a {
    color: inherit;
    text-decoration: none;
    background-image: linear-gradient(var(--sb-blau-primary), var(--sb-blau-primary));
    background-size: 0% 2px;
    background-repeat: no-repeat;
    background-position: left bottom;
    transition: background-size 0.4s var(--sb-ease), color 0.3s ease;
    padding-bottom: 2px;
}

.sb-karte-titel a:hover {
    color: var(--sb-blau-primary);
    background-size: 100% 2px;
}

.sb-karte-text {
    color: var(--sb-grau-700);
    font-size: 0.95rem;
    line-height: 1.65;
    margin: 0;
}

/* ================================================
   Mini-Galerie innerhalb der Karte
================================================ */
.sb-mini-galerie {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.sb-mini-thumb {
    position: relative;
    aspect-ratio: 1;
    border-radius: var(--sb-radius-sm);
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s var(--sb-ease);
    border: 2px solid transparent;
}

.sb-mini-thumb:hover {
    transform: scale(1.05);
    border-color: var(--sb-blau-primary);
}

.sb-mini-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sb-mehr-overlay {
    position: absolute;
    inset: 0;
    background: rgba(30, 58, 138, 0.75);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    backdrop-filter: blur(2px);
}

.sb-galerie-daten {
    display: none;
}

/* ================================================
   Buttons / Aktionen
================================================ */
.sb-karte-aktionen {
    display: flex;
    flex-wrap: wrap;
    gap: 0.625rem;
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--sb-grau-100);
}

.sb-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.625rem 1.125rem;
    border-radius: var(--sb-radius-md);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s var(--sb-ease);
    border: 1.5px solid transparent;
    font-family: var(--sb-font-body);
    line-height: 1;
    cursor: pointer;
    white-space: nowrap;
}

.sb-btn svg {
    flex-shrink: 0;
    transition: transform 0.3s var(--sb-ease);
}

.sb-btn-primary {
    background: var(--sb-blau-primary);
    color: var(--sb-weiss);
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.sb-btn-primary:hover {
    background: var(--sb-blau-dunkel);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.4);
    color: var(--sb-weiss);
}

.sb-btn-primary:hover svg {
    transform: translateX(3px);
}

.sb-btn-ghost {
    background: var(--sb-blau-ultra-hell);
    color: var(--sb-blau-dunkel);
    border-color: var(--sb-blau-pastell);
}

.sb-btn-ghost:hover {
    background: var(--sb-blau-primary);
    color: var(--sb-weiss);
    border-color: var(--sb-blau-primary);
    transform: translateY(-2px);
}

/* ================================================
   Keine-Beiträge-Nachricht
================================================ */
.sb-keine-beitraege {
    padding: 4rem 2rem;
    text-align: center;
    background: var(--sb-grau-50);
    border-radius: var(--sb-radius-lg);
    color: var(--sb-grau-500);
    font-family: var(--sb-font-body);
    font-size: 1.05rem;
    border: 2px dashed var(--sb-grau-300);
}

/* ================================================
   Lightbox für Galerie
================================================ */
.sb-lightbox {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.95);
    z-index: 99999;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.sb-lightbox.aktiv {
    display: flex;
    opacity: 1;
}

.sb-lightbox-inhalt {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sb-lightbox-bild {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: var(--sb-radius-md);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: sbLightboxIn 0.4s var(--sb-ease);
}

@keyframes sbLightboxIn {
    from { opacity: 0; transform: scale(0.92); }
    to { opacity: 1; transform: scale(1); }
}

.sb-lightbox-close,
.sb-lightbox-prev,
.sb-lightbox-next {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border: 1.5px solid rgba(255, 255, 255, 0.2);
    color: white;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.sb-lightbox-close:hover,
.sb-lightbox-prev:hover,
.sb-lightbox-next:hover {
    background: var(--sb-blau-primary);
    border-color: var(--sb-blau-primary);
    transform: scale(1.1);
}

.sb-lightbox-close {
    top: -60px;
    right: 0;
}

.sb-lightbox-prev {
    left: -80px;
    top: 50%;
    transform: translateY(-50%);
}

.sb-lightbox-next {
    right: -80px;
    top: 50%;
    transform: translateY(-50%);
}

.sb-lightbox-prev:hover {
    transform: translateY(-50%) scale(1.1);
}
.sb-lightbox-next:hover {
    transform: translateY(-50%) scale(1.1);
}

.sb-lightbox-counter {
    position: absolute;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    background: rgba(37, 99, 235, 0.9);
    padding: 0.5rem 1rem;
    border-radius: 999px;
    font-size: 0.875rem;
    font-weight: 600;
    backdrop-filter: blur(10px);
}

@media (max-width: 768px) {
    .sb-lightbox-prev { left: 0.5rem; }
    .sb-lightbox-next { right: 0.5rem; }
    .sb-lightbox-close { top: 1rem; right: 1rem; }
}

/* ================================================
   Animation beim Laden
================================================ */
.sb-karte {
    opacity: 0;
    animation: sbFadeUp 0.6s var(--sb-ease) forwards;
}

.sb-karte:nth-child(1) { animation-delay: 0.05s; }
.sb-karte:nth-child(2) { animation-delay: 0.15s; }
.sb-karte:nth-child(3) { animation-delay: 0.25s; }
.sb-karte:nth-child(4) { animation-delay: 0.35s; }
.sb-karte:nth-child(5) { animation-delay: 0.45s; }
.sb-karte:nth-child(6) { animation-delay: 0.55s; }
.sb-karte:nth-child(n+7) { animation-delay: 0.65s; }

@keyframes sbFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ================================================
   Barrierefreiheit
================================================ */
.sb-btn:focus-visible,
.sb-mini-thumb:focus-visible,
.sb-karte-titel a:focus-visible {
    outline: 2px solid var(--sb-blau-primary);
    outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce) {
    .sb-karte,
    .sb-featured-image,
    .sb-btn,
    .sb-mini-thumb {
        animation: none !important;
        transition: none !important;
    }
}