/* ══════════════════════════════════════════════════════════
   REFERENZEN.CSS – Greenstein Design (Portfolio)
   Nur seitenspezifische Styles. Globale Styles in global.css.
   ══════════════════════════════════════════════════════════ */

/* ── FEATURED SECTION ── */
.featured-section {
    margin-bottom: 80px; padding-bottom: 60px;
    border-bottom: 1px solid rgba(200,255,0,0.1);
}
.featured-section h2 {
    font-family: var(--font-display); font-size: 2.2rem; font-weight: 800;
    text-align: center; margin-bottom: 12px; color: var(--text-primary);
    letter-spacing: -0.02em;
}
.featured-intro {
    text-align: center; color: var(--text-secondary); font-size: 1.05rem;
    max-width: 600px; margin: 0 auto 48px; line-height: 1.6;
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-bottom: 0;
}

/* Featured Cards - Large (3 column span on desktop) */
.featured-card {
    background: rgba(15,15,15,0.7);
    border: 1px solid rgba(200,255,0,0.15);
    border-radius: var(--radius-xl);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: all 0.4s cubic-bezier(0.33, 1, 0.68, 1);
    position: relative;
}
.featured-card:hover {
    border-color: var(--accent);
    background: rgba(15,15,15,0.85);
    transform: translateY(-12px);
    box-shadow: 0 40px 120px rgba(200,255,0,0.15), 0 0 40px rgba(200,255,0,0.08);
}

.featured-large {
    grid-column: span 1;
}
.featured-medium {
    grid-column: span 1;
}

.featured-image {
    width: 100%;
    aspect-ratio: 16/9;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    overflow: hidden;
    position: relative;
}
.featured-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}
.featured-card:hover .featured-image img {
    transform: scale(1.05);
}

.featured-badge {
    position: absolute;
    top: 16px;
    right: 16px;
    background: rgba(200,255,0,0.15);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    border: 1px solid rgba(200,255,0,0.3);
    backdrop-filter: blur(10px);
}

.featured-content {
    padding: 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.featured-content h3 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-primary);
    line-height: 1.3;
}

.featured-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
    flex-grow: 1;
}

.featured-stats {
    display: flex;
    gap: 16px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(200,255,0,0.1);
    flex-wrap: wrap;
}
.stat {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.stat strong {
    color: var(--accent);
    font-weight: 700;
    display: block;
}

.featured-trust {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(200,255,0,0.1);
}
.featured-trust span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 8px;
}

.featured-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--accent);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition);
    width: fit-content;
}
.featured-link:hover {
    transform: translateX(6px);
}

/* ── FILTER SECTION ── */
.filter-section { margin-bottom: 48px; }
.filter-controls {
    display: flex; flex-wrap: wrap; gap: 12px;
    justify-content: center;
}
.filter-btn {
    padding: 12px 24px; background: rgba(255,255,255,0.03);
    border: 1px solid var(--border); border-radius: 100px;
    color: var(--text-secondary); font-weight: 600; font-size: 0.875rem;
    cursor: pointer; transition: var(--transition);
    font-family: var(--font-main);
}
.filter-btn:hover {
    border-color: var(--border-light); color: var(--text-primary);
    background: rgba(255,255,255,0.05);
}
.filter-btn.active {
    background: var(--accent); color: #000; border-color: var(--accent);
    box-shadow: 0 0 25px rgba(200,255,0,0.2);
}

/* ── PORTFOLIO GRID ── */
.portfolio-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px; margin-bottom: 60px;
}

/* ── PROJECT CARD ── */
.project-card {
    background: rgba(15,15,15,0.6);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-xl); overflow: hidden;
    transition: all 0.3s ease;
    display: flex; flex-direction: column;
    animation: fadeIn 0.4s ease;
}
.project-card:hover {
    border-color: var(--border-accent);
    background: rgba(15,15,15,0.8);
    transform: translateY(-8px);
    box-shadow: 0 30px 80px rgba(200,255,0,0.1), 0 0 0 1px rgba(200,255,0,0.05);
}

/* ── PROJECT IMAGE ── */
.project-image {
    width: 100%; aspect-ratio: 16/9;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid rgba(255,255,255,0.08);
    overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.project-image img {
    width: 100%; height: 100%; object-fit: cover;
}
.project-image svg { width: 100%; height: 100%; }
.placeholder-svg { background: rgba(200,255,0,0.03); }

/* ── PROJECT CONTENT ── */
.project-content {
    padding: 28px; flex: 1;
    display: flex; flex-direction: column;
}
.project-category {
    display: inline-block; width: fit-content;
    font-size: 0.65rem; color: var(--accent); font-weight: 700;
    text-transform: uppercase; letter-spacing: 0.1em;
    margin-bottom: 12px; padding-bottom: 8px;
    border-bottom: 1px solid rgba(200,255,0,0.2);
}
.project-title {
    font-family: var(--font-display); font-size: 1.2rem; font-weight: 700;
    margin-bottom: 12px; color: var(--text-primary);
}
.project-description {
    font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6;
    margin-bottom: 16px; flex-grow: 1;
}
.project-meta {
    display: flex; align-items: center; gap: 8px;
    font-size: 0.75rem; color: var(--text-muted);
    margin-bottom: 20px; padding-bottom: 16px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.meta-separator { opacity: 0.5; }
.project-link {
    display: inline-flex; align-items: center; gap: 6px;
    color: var(--accent); font-weight: 600; font-size: 0.875rem;
    text-decoration: none; transition: var(--transition);
}
.project-link:hover { transform: translateX(4px); }

/* ── CTA SECTION ── */
.referenz-cta {
    text-align: center; padding: 60px 40px;
    background: rgba(200,255,0,0.03); border: 1px solid rgba(200,255,0,0.1);
    border-radius: var(--radius-xl); margin-bottom: 40px;
    position: relative; overflow: hidden;
}
.referenz-cta::before {
    content: ''; position: absolute; top: -1px; left: 40px; right: 40px; height: 1px;
    background: linear-gradient(90deg, transparent, rgba(200,255,0,0.25), transparent);
}
.referenz-cta h2 {
    font-family: var(--font-display); font-size: 1.8rem; font-weight: 700;
    margin-bottom: 12px;
}
.referenz-cta p {
    color: var(--text-secondary); font-size: 1rem; line-height: 1.7;
    max-width: 520px; margin: 0 auto 32px;
}
.cta-buttons {
    display: flex; gap: 16px; justify-content: center; flex-wrap: wrap;
}
.btn-primary {
    padding: 16px 40px; background: var(--accent); color: #000;
    font-weight: 700; border-radius: 100px; text-decoration: none;
    transition: var(--transition);
    box-shadow: 0 0 30px rgba(200,255,0,0.15);
}
.btn-primary:hover {
    background: #d4ff33; transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(200,255,0,0.3);
}
.btn-secondary {
    padding: 16px 40px; background: rgba(255,255,255,0.03);
    border: 1px solid var(--border); color: var(--text-primary);
    font-weight: 600; border-radius: 100px; text-decoration: none;
    transition: var(--transition);
}
.btn-secondary:hover {
    border-color: var(--border-light); background: rgba(255,255,255,0.06);
}

/* ── RESPONSIVE ── */
@media (max-width: 1200px) {
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px;
    }
    .featured-large {
        grid-column: span 1;
    }
}

@media (max-width: 1024px) {
    .featured-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
    .featured-section {
        margin-bottom: 60px;
        padding-bottom: 40px;
    }
    .featured-section h2 {
        font-size: 1.8rem;
    }
    .portfolio-grid { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
}

@media (max-width: 768px) {
    .featured-section {
        margin-bottom: 50px;
        padding-bottom: 30px;
    }
    .featured-section h2 {
        font-size: 1.5rem;
    }
    .featured-intro {
        font-size: 0.95rem;
        margin-bottom: 32px;
    }
    .featured-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .featured-large {
        grid-column: span 1;
    }
    .featured-content {
        padding: 24px;
    }
    .featured-content h3 {
        font-size: 1.2rem;
    }
    .portfolio-grid { grid-template-columns: 1fr; gap: 20px; }
    .filter-controls { gap: 10px; }
    .filter-btn { padding: 10px 16px; font-size: 0.8rem; }
    .referenz-cta { padding: 40px 24px; }
    .referenz-cta h2 { font-size: 1.4rem; }
    .cta-buttons { flex-direction: column; }
    .btn-primary, .btn-secondary { width: 100%; }
    .page-header h1 { font-size: 1.8rem; }
}

/* ── PROJECT META STYLING ── */
.project-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}
.meta-separator {
    opacity: 0.5;
}

@media (max-width: 480px) {
    .featured-grid {
        gap: 16px;
    }
    .featured-content {
        padding: 20px;
    }
    .featured-content h3 {
        font-size: 1.1rem;
        margin-bottom: 12px;
    }
    .featured-desc {
        font-size: 0.9rem;
        margin-bottom: 16px;
    }
    .featured-badge {
        font-size: 0.65rem;
        padding: 6px 12px;
        top: 12px;
        right: 12px;
    }
    .featured-stats {
        gap: 12px;
        margin-bottom: 16px;
        padding-bottom: 16px;
    }
    .featured-trust {
        margin-bottom: 16px;
        padding-bottom: 16px;
    }
}