* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #2c5282;
    --primary-dark: #1e3a5f;
    --primary-light: #2b6cb0;
    --accent: #FF6B35;
    --white: #FFFFFF;
    --light-bg: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-600: #475569;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', sans-serif;
    line-height: 1.6;
    color: var(--gray-800);
    background: var(--white);
    overflow-x: hidden;
}
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible,
.btn:focus-visible, .nav a:focus-visible, .service-link-item:focus-visible, .cta-button:focus-visible, .hamburger:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.nav-cta:focus-visible { outline-color: var(--white); outline-offset: 2px; }

/* Foto's: responsief, nette weergave */
img {
    max-width: 100%;
    height: auto;
    vertical-align: middle;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}
@media (max-width: 480px) { .container { padding: 0 1rem; } }

/* ===== NIEUWE PREMIUM HEADER ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--gray-200);
    z-index: 1000;
    transition: box-shadow 0.25s ease;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0.875rem 1.5rem;
    min-height: 80px;
    gap: 1.5rem;
    min-width: 0;
    overflow: hidden;
}

.header-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.header-logo-img {
    display: block;
    height: 52px;
    width: auto;
    max-width: 280px;
    object-fit: contain;
    object-position: left center;
}

.header-nav {
    display: flex;
    align-items: center;
    gap: 2rem;
    flex-shrink: 0;
}

.header-nav a {
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 600;
    font-size: 0.9375rem;
    letter-spacing: 0.01em;
    transition: color 0.2s ease;
    position: relative;
    white-space: nowrap;
}

.header-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: width 0.2s ease;
}

.header-nav a:hover {
    color: var(--primary);
}

.header-nav a:hover::after {
    width: 100%;
}

.header-cta {
    background: var(--primary) !important;
    color: #fff !important;
    padding: 0.6rem 1.25rem !important;
    border-radius: 8px;
    font-weight: 700 !important;
}

.header-cta::after {
    display: none !important;
}

.header-cta:hover {
    background: var(--primary-dark) !important;
    color: #fff !important;
    transform: translateY(-1px);
}

.header-menu-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: none;
    background: transparent;
    cursor: pointer;
    z-index: 1001;
    border-radius: 8px;
    transition: background 0.2s ease;
}

.header-menu-btn:hover {
    background: var(--gray-100);
}

.header-menu-bar {
    display: block;
    width: 22px;
    height: 2.5px;
    background: var(--gray-800);
    border-radius: 2px;
    margin: 0 auto;
    transition: transform 0.3s ease, opacity 0.2s ease;
}

.header-menu-btn.active .header-menu-bar:nth-child(1) {
    transform: translateY(8.5px) rotate(45deg);
}

.header-menu-btn.active .header-menu-bar:nth-child(2) {
    opacity: 0;
}

.header-menu-btn.active .header-menu-bar:nth-child(3) {
    transform: translateY(-8.5px) rotate(-45deg);
}

.header-logo:focus-visible,
.header-nav a:focus-visible,
.header-menu-btn:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.header-menu-btn:focus-visible {
    border-radius: 8px;
}

/* Legacy class support (footer/other pages may still use .nav) */
.nav { display: flex; gap: 1.5rem; align-items: center; }
.nav a { text-decoration: none; color: var(--gray-800); font-weight: 500; }
.logo-img { max-width: 100%; height: auto; max-height: 80px; object-fit: contain; }

/* Premium Hero – kleuren in lijn met NSR-logo */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a5f 0%, #2c5282 40%, #2b6cb0 100%);
    background-size: 200% 200%;
    animation: gradientShift 15s ease infinite;
    overflow: hidden;
    padding-top: 80px;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.3;
}

.hero-inner {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}
@media (max-width: 900px) {
    .hero-inner { grid-template-columns: 1fr; text-align: center; }
}
.hero-content {
    color: var(--white);
    padding: 1rem 0;
    animation: fadeInUp 1s ease;
}
.hero-content .hero-buttons { justify-content: flex-start; }
@media (max-width: 900px) {
    .hero-content .hero-buttons { justify-content: center; }
}
.hero-image-wrap {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
    animation: fadeInUp 1s ease 0.2s both;
}
.hero-image-wrap img {
    width: 100%;
    height: auto;
    max-height: 420px;
    object-fit: cover;
    object-position: center;
    display: block;
    background: var(--gray-100);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
    text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.hero p {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    margin-bottom: 2.5rem;
    opacity: 0.95;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: all 0.3s ease;
    display: inline-block;
    border: 2px solid transparent;
    box-shadow: var(--shadow-lg);
}

.btn-primary {
    background: var(--white);
    color: var(--primary);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white);
    border-color: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-3px);
}

/* Notice Banner */
.notice {
    background: linear-gradient(135deg, #E3F2FD 0%, #BBDEFB 100%);
    padding: 1.25rem;
    text-align: center;
    border-bottom: 3px solid var(--primary);
    position: relative;
    box-shadow: var(--shadow-sm);
}

.notice p {
    margin: 0;
    font-size: 1rem;
    color: var(--primary-dark);
    font-weight: 600;
}

/* Wat wij doen – breder, nuttiger: titel + dienstlinks in grid */
.wat-wij-doen {
    padding: clamp(2.5rem, 5vw, 4rem) 0;
    background: linear-gradient(180deg, var(--light-bg) 0%, var(--white) 100%);
}
.wat-wij-doen .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}
.wat-wij-doen-label {
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gray-600);
    margin: 0 0 0.5rem 0;
}
.wat-wij-doen-title {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--primary);
    margin: 0 0 1rem 0;
    line-height: 1.2;
}
.wat-wij-doen-intro {
    font-size: 1.05rem;
    color: var(--gray-700);
    line-height: 1.75;
    margin-bottom: 2rem;
    max-width: 56ch;
}
.service-links-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}
@media (min-width: 600px) {
    .service-links-list {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
}
@media (min-width: 900px) {
    .service-links-list {
        grid-template-columns: repeat(3, 1fr);
        gap: 1rem 1.25rem;
    }
}
.service-link-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    min-height: max(56px, 3rem);
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    text-decoration: none;
    color: var(--gray-800);
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.25s ease;
    box-shadow: var(--shadow-sm);
}
.service-link-item:hover {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(44, 82, 130, 0.08) 0%, rgba(30, 58, 95, 0.05) 100%);
    color: var(--primary);
    box-shadow: var(--shadow-md);
}
.service-link-icon {
    width: 48px;
    height: 48px;
    min-width: 48px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}
.service-link-item:hover .service-link-icon {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}
.service-link-text { flex: 1; }
.service-link-arrow {
    font-size: 1.25rem;
    color: var(--primary);
    opacity: 0.8;
}
.service-link-item:hover .service-link-arrow { opacity: 1; }

/* Premium Cards */
.section {
    padding: 5rem 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 1.25rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Grid */
.services {
    background: var(--light-bg);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
    align-items: stretch;
}

.premium-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    background: var(--white);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: var(--shadow);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gray-200);
}

.premium-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--accent) 100%);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.premium-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.premium-card:hover::before {
    transform: scaleX(1);
}

.card-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
    color: #fff;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.premium-card:hover .card-icon {
    transform: rotate(5deg) scale(1.1);
}

.premium-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

.premium-card p {
    color: var(--gray-600);
    line-height: 1.8;
}

/* Products Grid – gelijke hoogte, overzichtelijk */
.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
    align-items: stretch;
}
@media (max-width: 1100px) {
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 640px) {
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

.product-card {
    display: flex;
    flex-direction: column;
    height: 100%;
    min-height: 0;
    background: var(--white);
    border-radius: 24px;
    padding: 2rem;
    border: 2px solid var(--gray-200);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.product-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.05) 0%, rgba(255, 107, 53, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.4s ease;
}

.product-card:hover {
    transform: translateY(-12px);
    border-color: var(--primary);
    box-shadow: var(--shadow-xl);
}

.product-card:hover::after {
    opacity: 1;
}

.product-card h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.product-description {
    color: var(--gray-600);
    margin-bottom: 1.5rem;
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

.technical-info {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(33, 150, 243, 0.05) 100%);
    padding: 1.25rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    border-left: 4px solid var(--primary);
    position: relative;
    z-index: 1;
}

.technical-info strong {
    display: block;
    color: var(--primary-dark);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.technical-info p {
    color: var(--gray-800);
    margin: 0;
    font-size: 0.95rem;
}

.product-card .cta-button {
    margin-top: auto;
    flex-shrink: 0;
}

.features-list {
    list-style: none;
    margin: 0 0 1.25rem 0;
    padding: 0;
    position: relative;
    z-index: 1;
    flex: 1 1 auto;
}

.features-list li {
    padding: 0.875rem 0;
    color: var(--gray-800);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.features-list li:hover {
    color: var(--primary);
    transform: translateX(5px);
}

.product-card .product-card-image {
    width: 100%;
    height: 200px;
    object-fit: contain;
    border-radius: 16px;
    margin-bottom: 1.25rem;
    background: var(--gray-100);
}

.product-gallery {
    padding: 4rem 0;
}

.product-gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.product-gallery-item {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--white);
}

.product-gallery-item img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    display: block;
    background: var(--gray-100);
}

.product-gallery-caption {
    padding: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

/* Categorie-overzicht: 1 kaart per categorie, klik naar sectie */
.category-overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}
.category-card-link {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--white);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.category-card-link:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
}
.category-card-link img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    object-position: center;
    display: block;
    background: var(--gray-100);
}
.category-card-link .category-card-title {
    padding: 1rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
}
/* Categoriepagina: sectie met titel, uitleg, alle foto's */
.category-section {
    padding: 3rem 0;
    border-top: 1px solid var(--gray-200);
}
.category-section h3 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}
.category-section .category-intro {
    color: var(--gray-700);
    margin-bottom: 1.5rem;
    line-height: 1.7;
}
.category-section .photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 1rem;
}
.category-section .photo-grid img {
    width: 100%;
    height: 220px;
    object-fit: contain;
    object-position: center;
    border-radius: 12px;
    display: block;
    background: var(--gray-100);
}

.airpress-originals {
    display: none; /* Sectie verborgen op verzoek */
    margin-top: 2.5rem;
    padding: 1.5rem;
    background: linear-gradient(135deg, rgba(44, 82, 130, 0.08) 0%, rgba(30, 58, 95, 0.06) 100%);
    border-radius: 16px;
    text-align: center;
}
.airpress-originals a {
    display: inline-block;
    margin: 0.25rem;
    padding: 0.5rem 1rem;
    background: var(--white);
    border: 2px solid var(--primary);
    border-radius: 8px;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
}
.airpress-originals a:hover {
    background: var(--primary);
    color: var(--white);
}

.airpress-originals p {
    margin: 0 0 0.75rem 0;
    color: var(--gray-700);
}

/* Over ons */
.about-section {
    padding: 4rem 0;
    background: linear-gradient(180deg, var(--gray-50) 0%, var(--white) 100%);
}
.about-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 1100px;
    margin: 0 auto;
}
@media (max-width: 900px) {
    .about-inner { grid-template-columns: 1fr; }
}
.about-text h2 {
    color: var(--primary);
    margin-bottom: 1rem;
}
.about-text p {
    color: var(--gray-700);
    line-height: 1.8;
    margin-bottom: 1rem;
}
.about-image-wrap {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}
.about-image-wrap img {
    width: 100%;
    height: auto;
    object-fit: cover;
    object-position: center;
    display: block;
    background: var(--gray-100);
}

.check-icon {
    width: 24px;
    height: 24px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: bold;
    font-size: 0.875rem;
    flex-shrink: 0;
    box-shadow: var(--shadow);
}

.cta-button {
    display: inline-block;
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-md);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Contact Section */
.contact {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 3rem;
}

.contact-info h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: var(--white);
}

.info-item {
    margin-bottom: 2rem;
}

.info-item strong {
    display: block;
    color: var(--primary-light);
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
    font-weight: 600;
}

.info-item p,
.info-item a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    line-height: 1.8;
    transition: color 0.3s ease;
}

.info-item a:hover {
    color: var(--primary-light);
}

.contact-form {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--gray-800);
    font-weight: 600;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--white);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(33, 150, 243, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 140px;
}

.submit-btn {
    width: 100%;
    padding: 1.25rem;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border: none;
    border-radius: 12px;
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Footer – moderne stijl: gradient, betere kleuren, typografie, CTA */
.footer {
    background: linear-gradient(180deg, #0f172a 0%, #1e293b 40%, #1e3a5f 100%);
    color: var(--white);
    position: relative;
}
.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 50%, var(--primary) 100%);
}

.footer-top {
    padding: clamp(3rem, 6vw, 5rem) 0 clamp(2.5rem, 4vw, 3.5rem);
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: clamp(2rem, 4vw, 3.5rem);
}

.footer-column { min-width: 0; }

.footer-logo { margin-bottom: 1.25rem; }

.footer-logo-link {
    display: inline-block;
    transition: opacity 0.25s ease;
}
.footer-logo-link:hover { opacity: 0.9; }

.footer-logo-img {
    max-height: 60px;
    width: auto;
    max-width: 220px;
    object-fit: contain;
    display: block;
    filter: brightness(1.05);
}

.footer-title {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--white);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.footer-tagline {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1rem;
    line-height: 1.65;
    margin-bottom: 1.5rem;
    max-width: 32ch;
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-contact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.98rem;
}

.footer-contact-item .footer-contact-icon {
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    margin-top: 2px;
    stroke: currentColor;
    color: var(--primary-light);
}

.footer-contact-item a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: color 0.25s ease;
}
.footer-contact-item a:hover { color: #93c5fd; }
.footer-contact-item a:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.footer-social {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.footer-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.12);
    color: var(--white);
    transition: background 0.25s ease, color 0.25s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.footer-social-link:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(44, 82, 130, 0.4);
}
.footer-social-link:first-child:hover {
    background: #25D366;
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}
.footer-social-link:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}
.footer-social-link svg { width: 24px; height: 24px; }

.footer-heading {
    font-size: 0.9rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.65rem; }
.footer-links a {
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    font-size: 0.98rem;
    transition: color 0.25s ease, padding-left 0.2s ease;
}
.footer-links a:hover { color: #93c5fd; padding-left: 4px; }
.footer-links a:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.footer-cta {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.footer-cta .footer-heading { margin-bottom: 0.75rem; }
.footer-cta p {
    font-size: 0.95rem;
    line-height: 1.65;
    margin-bottom: 1.25rem;
    color: rgba(255, 255, 255, 0.88);
}

.footer-btn {
    display: inline-block;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white) !important;
    padding: 0.875rem 1.75rem;
    border-radius: 10px;
    font-weight: 700;
    font-size: 1rem;
    text-decoration: none;
    border: 2px solid transparent;
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.footer-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(44, 82, 130, 0.35);
    border-color: rgba(255, 255, 255, 0.2);
}
.footer-btn:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

.footer-bottom {
    padding: 1.25rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.2);
}

.footer-bottom-content {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.footer-copyright {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.65);
}

.footer-legal a {
    color: rgba(255, 255, 255, 0.65);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}
.footer-legal a:hover { color: #93c5fd; }
.footer-legal a:focus-visible {
    outline: 2px solid var(--primary-light);
    outline-offset: 2px;
}

@media (max-width: 1024px) {
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
    .footer-top { padding: 3rem 0 2.5rem; }
    .footer-content { padding: 0 1.5rem; }
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
    .footer-tagline { max-width: none; }
    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
        padding: 0 1.5rem;
    }
}

/* Mobile: header nav als overlay */
@media (max-width: 968px) {
    .contact-content {
        grid-template-columns: 1fr;
    }

    .header-nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
        z-index: 999;
        flex-direction: column;
        padding: 1.25rem 1.5rem;
        gap: 0;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        border-top: 1px solid var(--gray-200);
    }

    .header-nav.active {
        display: flex;
    }

    .header-nav a {
        padding: 1rem 1.25rem;
        border-radius: 8px;
        text-align: center;
        font-size: 1.0625rem;
    }

    .header-nav a::after {
        display: none;
    }

    .header-cta {
        margin-top: 0.5rem;
        background: var(--primary) !important;
        color: #fff !important;
    }

    .header-menu-btn {
        display: flex;
    }

    .header-logo-img {
        height: 44px;
    }

    /* Legacy .nav voor over-ons/contact pagina's */
    .nav {
        display: none;
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--white);
        box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
        z-index: 999;
        flex-direction: column;
        padding: 1.5rem;
        gap: 0.5rem;
        max-height: calc(100vh - 80px);
        overflow-y: auto;
    }
    .nav.active { display: flex; }
    .hamburger { display: flex; }
}

@media (max-width: 768px) {
    .header-inner {
        padding: 0.75rem 1rem;
        min-height: 72px;
    }

    .container {
        padding: 0 1.5rem;
    }

    .section {
        padding: 3rem 0;
    }

    .section-header {
        margin-bottom: 2.5rem;
    }

    .cards-grid,
    .products-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .hero {
        min-height: 80vh;
        padding-top: 80px;
    }
}

/* Floating WhatsApp (zoals concurrent) */
.nsr-whatsapp-float {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 56px;
    height: 56px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: transform 0.2s;
}
.nsr-whatsapp-float:hover {
    transform: scale(1.05);
    color: #fff;
}

@media (max-width: 480px) {
    .header-inner { padding: 0.75rem 1rem; }
    .container { padding: 0 1rem; }
}
@media print {
    .header { position: relative; box-shadow: none; }
    .nsr-whatsapp-float { display: none !important; }
    .hero { min-height: auto; padding: 2rem 0; background: #f5f5f5; }
    a[href^="tel"], a[href^="https://wa.me"] { text-decoration: none; }
}