/* ============================================
   W.G.J. van den Berg — Timmerman Delft
   Mobile-first responsive styles
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-primary: #1a56db;
  --color-primary-dark: #1444ab;
  --color-primary-light: #e8effc;
  --color-accent: #e67e22;
  --color-accent-dark: #cf6d17;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f8fafc;
  --color-border: #e5e7eb;
  --color-white: #ffffff;
  --color-star: #f59e0b;
  --font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-heading: var(--font-body);
  --max-width: 1100px;
  --header-height: 72px;
  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.15);
  --transition: 200ms ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-primary-dark);
}

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border: 2px solid transparent;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

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

.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border-color: var(--color-white);
}

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

.btn-lg {
  padding: 14px 32px;
  font-size: 1.05rem;
}

/* --- Header --- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
  height: var(--header-height);
}

.site-header.scrolled {
  background: var(--color-white);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  line-height: 1.2;
}

.logo-name {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  transition: color var(--transition);
}

.logo-tagline {
  font-size: 0.7rem;
  color: rgba(255,255,255,0.8);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: color var(--transition);
}

.site-header.scrolled .logo-name {
  color: var(--color-primary);
}

.site-header.scrolled .logo-tagline {
  color: var(--color-text-light);
}

.nav {
  display: none;
}

.nav-list {
  display: flex;
  gap: 24px;
}

.nav-list a {
  color: var(--color-white);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

.site-header.scrolled .nav-list a {
  color: var(--color-text);
}

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

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.phone-link {
  display: none;
  align-items: center;
  gap: 6px;
  color: var(--color-white);
  font-weight: 500;
  font-size: 0.9rem;
}

.site-header.scrolled .phone-link {
  color: var(--color-text);
}

.phone-link .icon {
  flex-shrink: 0;
}

.header-actions .btn-primary {
  display: none;
}

/* Mobile menu toggle */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.menu-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  border-radius: 1px;
  transition: all var(--transition);
}

.site-header.scrolled .menu-toggle span {
  background: var(--color-text);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile nav open state */
.nav.open {
  display: flex;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-white);
  z-index: 99;
  padding: 24px 20px;
}

.nav.open .nav-list {
  flex-direction: column;
  gap: 0;
  width: 100%;
}

.nav.open .nav-list a {
  display: block;
  padding: 16px 0;
  color: var(--color-text);
  font-size: 1.1rem;
  border-bottom: 1px solid var(--color-border);
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary) url('../images/hero.webp') center / cover no-repeat;
  color: var(--color-white);
  padding: 120px 0 80px;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,86,219,0.85) 0%, rgba(20,68,171,0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 640px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  line-height: 1.5;
  opacity: 0.9;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* --- Sections --- */
.section {
  padding: 64px 0;
}

.section:nth-child(even) {
  background: var(--color-bg-alt);
}

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
}

.section-intro {
  color: var(--color-text-light);
  font-size: 1.05rem;
  max-width: 600px;
  margin-bottom: 40px;
}

/* --- Diensten (Services) --- */
.services-grid {
  display: grid;
  gap: 20px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: box-shadow var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-md);
}

.service-featured {
  border-color: var(--color-primary);
  border-width: 2px;
  position: relative;
}

.service-featured::before {
  content: 'Specialiteit';
  position: absolute;
  top: -11px;
  left: 20px;
  background: var(--color-primary);
  color: var(--color-white);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 12px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.service-icon {
  color: var(--color-primary);
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Werkgebied --- */
.werkgebied .about-text p {
  color: var(--color-text-light);
}

.area-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin-bottom: 16px;
  padding: 20px;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

.area-list li {
  font-weight: 500;
  color: var(--color-text);
  padding-left: 16px;
  position: relative;
}

.area-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
}

/* --- Over Wim (About) --- */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.about-image img {
  border-radius: var(--radius-lg);
  object-fit: cover;
  width: 100%;
  max-width: 400px;
}

.about-lead {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 16px;
}

.about-text p {
  color: var(--color-text-light);
  margin-bottom: 12px;
}

/* --- Foto's (Gallery) --- */
.gallery-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: 1fr 1fr;
}

.gallery-item {
  cursor: pointer;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3/2;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.92);
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 20px;
}

.lightbox.active {
  display: flex;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius);
}

.lightbox-caption {
  color: var(--color-white);
  margin-top: 16px;
  font-size: 0.95rem;
  text-align: center;
}

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: absolute;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  font-size: 2rem;
  padding: 12px;
  transition: opacity var(--transition);
  z-index: 201;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover {
  opacity: 0.7;
}

.lightbox-close {
  top: 16px;
  right: 16px;
  font-size: 2.5rem;
}

.lightbox-prev {
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
}

.lightbox-next {
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 3rem;
}

/* --- Reviews --- */
.reviews-header {
  margin-bottom: 32px;
}

.rating-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 16px;
}

.rating-stars {
  color: var(--color-star);
  font-size: 1.2rem;
}

.rating-text {
  font-weight: 600;
  font-size: 0.9rem;
}

.reviews-grid {
  display: grid;
  gap: 16px;
}

.review-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}

.review-stars {
  color: var(--color-star);
  font-size: 1rem;
  margin-bottom: 12px;
}

.review-text {
  color: var(--color-text);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 12px;
}

.review-author {
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
}

/* --- Contact --- */
.contact-content {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.contact-lead {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--color-text);
}

.contact-item .icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-item a {
  color: var(--color-text);
  font-weight: 500;
}

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

/* Form */
.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition);
}

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

.form-group input.error,
.form-group textarea.error {
  border-color: #dc2626;
}

.form-error {
  display: none;
  color: #dc2626;
  font-size: 0.8rem;
  margin-top: 4px;
}

.form-error.visible {
  display: block;
}

.form-status {
  margin-top: 16px;
  padding: 12px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.form-status.error {
  display: block;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

.contact-form .btn {
  width: 100%;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: 48px 0 24px;
}

.footer-inner {
  text-align: center;
}

.footer-brand {
  margin-bottom: 16px;
}

.footer-brand .logo-name {
  font-size: 1.2rem;
  color: var(--color-white);
}

.footer-brand .logo-tagline {
  color: rgba(255,255,255,0.5);
}

.footer-info {
  margin-bottom: 24px;
}

.footer-info p {
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.footer-info a {
  color: rgba(255,255,255,0.7);
}

.footer-info a:hover {
  color: var(--color-white);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 20px;
}

.footer-bottom p {
  font-size: 0.8rem;
}

/* ============================================
   Responsive — Tablet (768px+)
   ============================================ */
@media (min-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .services-grid {
    grid-template-columns: 1fr 1fr;
  }

  .reviews-grid {
    grid-template-columns: 1fr 1fr;
  }

  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
  }

  .about-content {
    flex-direction: row;
    align-items: flex-start;
  }

  .about-image {
    flex-shrink: 0;
    width: 280px;
  }

  .contact-content {
    flex-direction: row;
    gap: 48px;
  }

  .contact-info {
    flex: 1;
  }

  .contact-form {
    flex: 1;
  }

  .contact-form .btn {
    width: auto;
  }
}

/* ============================================
   Responsive — Desktop (1024px+)
   ============================================ */
@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
  }

  .menu-toggle {
    display: none;
  }

  .phone-link {
    display: flex;
  }

  .header-actions .btn-primary {
    display: inline-flex;
  }

  .section {
    padding: 100px 0;
  }

  .about-image {
    width: 360px;
  }

  .hero-content {
    max-width: 560px;
  }

  .area-list {
    gap: 8px 32px;
  }
}

/* ============================================
   Responsive — Large Desktop (1200px+)
   ============================================ */
@media (min-width: 1200px) {
  .reviews-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}