/* ==========================================================================
   Patrick van Zoest - Schilder- en Afwerkingsbedrijf
   Modern Design System & Styling (2026)
   ========================================================================== */

:root {
  /* Colors */
  --color-primary: #0f172a;        /* Deep Slate Navy */
  --color-primary-light: #1e293b;  /* Slate Navy Tint */
  --color-primary-dark: #090d16;   /* Deep Dark Slate */
  
  --color-accent: #d97706;         /* Craftsman Amber Gold */
  --color-accent-hover: #b45309;   /* Deep Amber */
  --color-accent-light: #fef3c7;   /* Amber Tint */
  --color-accent-subtle: rgba(217, 119, 6, 0.12);

  --color-secondary: #0284c7;      /* Glazier / Painter Sky Blue */
  --color-secondary-light: #e0f2fe;

  --color-text-main: #1e293b;      /* Charcoal Text */
  --color-text-muted: #64748b;     /* Muted Slate Text */
  --color-text-light: #94a3b8;     /* Light Slate */
  --color-text-white: #ffffff;     /* Crisp White */

  --color-bg-body: #f8fafc;        /* Clean light grey-white */
  --color-bg-card: #ffffff;        /* Pure white */
  --color-bg-alt: #f1f5f9;         /* Alternate section bg */
  --color-bg-dark: #0f172a;        /* Dark section bg */
  
  --color-border: #e2e8f0;
  --color-border-hover: #cbd5e1;

  --color-success: #16a34a;
  --color-success-bg: #dcfce7;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 25px -3px rgba(15, 23, 42, 0.1), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
  --shadow-xl: 0 20px 35px -5px rgba(15, 23, 42, 0.12), 0 8px 10px -6px rgba(15, 23, 42, 0.06);
  --shadow-glow: 0 0 30px rgba(217, 119, 6, 0.25);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);

  /* Layout */
  --container-max: 1240px;
  --header-height: 80px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-main);
  background-color: var(--color-bg-body);
  line-height: 1.6;
  overflow-x: hidden;
}

img, picture, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

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

button, input, select, textarea {
  font: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ==========================================================================
   Typography & Helpers
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-primary);
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  background: var(--color-accent-subtle);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 0.85rem;
}

.section-tag.light {
  background: rgba(255, 255, 255, 0.15);
  color: #fbbf24;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-accent { color: var(--color-accent); }

/* ==========================================================================
   Buttons & Links
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.65rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent), #f59e0b);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(217, 119, 6, 0.35);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #b45309, #d97706);
  box-shadow: 0 6px 20px rgba(217, 119, 6, 0.45);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-secondary {
  background: #ffffff;
  color: var(--color-primary);
  border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-primary);
  background: var(--color-bg-alt);
  transform: translateY(-2px);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  border: 1px solid rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
}

.btn-outline-light:hover {
  background: #ffffff;
  color: var(--color-primary);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #25d366;
  color: #ffffff;
}

.btn-whatsapp:hover {
  background: #20ba59;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
  color: #ffffff;
}

.btn-sm {
  font-size: 0.875rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  font-size: 1.1rem;
  padding: 1rem 2rem;
  border-radius: var(--radius-lg);
}

/* ==========================================================================
   Header & Top Announcement Bar
   ========================================================================== */
.top-bar {
  background: var(--color-primary-dark);
  color: var(--color-text-light);
  font-size: 0.85rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.top-bar-info {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.top-bar-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.top-bar-item svg {
  width: 15px;
  height: 15px;
  color: var(--color-accent);
}

.top-bar-item a:hover {
  color: #ffffff;
}

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  height: var(--header-height);
  display: flex;
  align-items: center;
}

.header.scrolled {
  box-shadow: var(--shadow-md);
  background: rgba(255, 255, 255, 0.98);
  height: 70px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.logo-link {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  text-decoration: none;
}

.logo-img {
  height: 52px;
  width: auto;
  max-width: 290px;
  object-fit: contain;
  transition: transform var(--transition-fast);
}

.logo-link:hover .logo-img {
  transform: scale(1.02);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.logo-subtitle {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-link {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text-main);
  padding: 0.5rem 0;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-accent);
  transition: width var(--transition-fast);
  border-radius: 2px;
}

.nav-link:hover {
  color: var(--color-accent);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.menu-toggle {
  display: none;
  padding: 0.5rem;
  color: var(--color-primary);
}

.menu-toggle svg {
  width: 28px;
  height: 28px;
}

/* ==========================================================================
   Mobile Navigation Drawer
   ========================================================================== */
.mobile-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 380px;
  height: 100vh;
  background: #ffffff;
  box-shadow: var(--shadow-xl);
  z-index: 2000;
  transition: right var(--transition-slow);
  display: flex;
  flex-direction: column;
  padding: 2rem 1.5rem;
}

.mobile-nav.active {
  right: 0;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1999;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.mobile-nav-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 1.5rem;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.mobile-nav-links .nav-link {
  font-size: 1.15rem;
  font-weight: 600;
}

.mobile-nav-footer {
  margin-top: auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero {
  position: relative;
  min-height: calc(100vh - 120px);
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.94) 0%, rgba(15, 23, 42, 0.82) 100%),
              url('../assets/images/hero-painter.jpg') center/cover no-repeat;
  color: #ffffff;
  padding: 5rem 0;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--color-bg-body), transparent);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3.5rem;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 650px;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.75rem);
  font-weight: 800;
  color: #ffffff;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-title span {
  color: #fbbf24;
  background: linear-gradient(90deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-lead {
  font-size: 1.2rem;
  color: #cbd5e1;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.hero-usps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.85rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1.5rem;
}

.hero-usp-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.925rem;
  color: #e2e8f0;
  font-weight: 500;
}

.hero-usp-item svg {
  width: 18px;
  height: 18px;
  color: #fbbf24;
  flex-shrink: 0;
}

.hero-card {
  background: rgba(255, 255, 255, 0.96);
  color: var(--color-text-main);
  padding: 2.25rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(16px);
}

.hero-card-header {
  margin-bottom: 1.5rem;
}

.hero-card-title {
  font-size: 1.45rem;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.hero-card-desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   USP Banner Strip
   ========================================================================== */
.usp-strip {
  position: relative;
  z-index: 10;
  margin-top: -40px;
  margin-bottom: 4rem;
}

.usp-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.usp-card {
  background: #ffffff;
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  border: 1px solid var(--color-border);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.usp-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.usp-icon-wrap {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.usp-icon-wrap svg {
  width: 24px;
  height: 24px;
}

.usp-content h4 {
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.usp-content p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   Services Section
   ========================================================================== */
.services-section {
  padding: 5rem 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}

.service-card {
  background: #ffffff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-slow);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--color-accent);
}

.service-img-wrap {
  position: relative;
  height: 230px;
  overflow: hidden;
}

.service-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.service-card:hover .service-img {
  transform: scale(1.06);
}

.service-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background: rgba(15, 23, 42, 0.85);
  color: #ffffff;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.service-body {
  padding: 1.85rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.service-desc {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.55;
  margin-bottom: 1.25rem;
  flex-grow: 1;
}

.service-features {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.service-features li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  color: var(--color-text-main);
  font-weight: 500;
}

.service-features li svg {
  width: 16px;
  height: 16px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.service-footer {
  border-top: 1px solid var(--color-border);
  padding-top: 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.service-link {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.service-link:hover {
  color: var(--color-accent-hover);
  gap: 0.55rem;
}

/* ==========================================================================
   Before / After Interactive Comparison Section
   ========================================================================== */
.comparison-section {
  padding: 5.5rem 0;
  background: var(--color-primary);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.comparison-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(217, 119, 6, 0.15), transparent 70%);
  pointer-events: none;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-top: 3.5rem;
}

.comparison-info .section-title {
  color: #ffffff;
}

.comparison-info p {
  color: #94a3b8;
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.comparison-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.comparison-step {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  flex-shrink: 0;
}

.step-text h5 {
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 0.15rem;
}

.step-text p {
  color: #94a3b8;
  font-size: 0.85rem;
  margin-bottom: 0;
}

/* Slider Component */
.before-after-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  user-select: none;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.slider-img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.slider-img-after {
  z-index: 1;
}

.slider-img-before-wrap {
  position: absolute;
  top: 0;
  left: 0;
  width: 50%;
  height: 100%;
  overflow: hidden;
  z-index: 2;
}

.slider-img-before-wrap .slider-img {
  width: 100%;
  min-width: 100%;
  height: 100%;
}

.slider-label {
  position: absolute;
  bottom: 1rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(15, 23, 42, 0.85);
  color: #ffffff;
  backdrop-filter: blur(8px);
  z-index: 5;
}

.slider-label.before { left: 1rem; }
.slider-label.after { right: 1rem; }

.slider-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  background: #ffffff;
  z-index: 10;
  cursor: ew-resize;
  transform: translateX(-50%);
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.slider-handle-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  border: 3px solid #ffffff;
}

.slider-handle-btn svg {
  width: 20px;
  height: 20px;
}

.slider-range-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  z-index: 20;
  cursor: ew-resize;
}

/* ==========================================================================
   Interactive Quote Calculator / Keuzehulp
   ========================================================================== */
.calculator-section {
  padding: 5.5rem 0;
  background: var(--color-bg-alt);
}

.calculator-wrapper {
  background: #ffffff;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
  padding: 3rem;
  margin-top: 3rem;
}

.calc-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 1.5rem;
}

.calc-step-tab {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.calc-step-tab.active {
  background: var(--color-accent-subtle);
  color: var(--color-accent-hover);
  font-weight: 700;
}

.calc-step-tab.completed {
  color: var(--color-primary);
}

.calc-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-border);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
}

.calc-step-tab.active .calc-step-num {
  background: var(--color-accent);
  color: #ffffff;
}

.calc-step-tab.completed .calc-step-num {
  background: var(--color-success);
  color: #ffffff;
}

.calc-step-content {
  display: none;
}

.calc-step-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.calc-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
  margin-bottom: 2rem;
}

.calc-option-card {
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  background: #ffffff;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.calc-option-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.calc-option-card.selected {
  border-color: var(--color-accent);
  background: var(--color-accent-subtle);
  box-shadow: 0 0 0 3px rgba(217, 119, 6, 0.2);
}

.calc-option-icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.calc-option-card.selected .calc-option-icon {
  background: var(--color-accent);
  color: #ffffff;
}

.calc-option-title {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.calc-option-sub {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.calc-nav-buttons {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.calc-summary-card {
  background: var(--color-primary);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
}

.calc-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.calc-summary-item h6 {
  color: #94a3b8;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.35rem;
}

.calc-summary-item p {
  color: #ffffff;
  font-weight: 700;
  font-size: 1.15rem;
}

/* ==========================================================================
   Portfolio / Project Showcase Gallery
   ========================================================================== */
.portfolio-section {
  padding: 5.5rem 0;
}

.portfolio-filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 2.5rem;
  margin-bottom: 3rem;
}

.filter-btn {
  padding: 0.6rem 1.35rem;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  background: #ffffff;
  border: 1px solid var(--color-border);
  transition: all var(--transition-fast);
}

.filter-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.filter-btn.active {
  background: var(--color-primary);
  color: #ffffff;
  border-color: var(--color-primary);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.portfolio-item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-slow), box-shadow var(--transition-slow);
}

.portfolio-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.portfolio-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.portfolio-item:hover .portfolio-img {
  transform: scale(1.08);
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, rgba(15, 23, 42, 0.2) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  color: #ffffff;
  opacity: 0.95;
  transition: opacity var(--transition-normal);
}

.portfolio-cat {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fbbf24;
  margin-bottom: 0.35rem;
}

.portfolio-title {
  font-size: 1.15rem;
  color: #ffffff;
  line-height: 1.25;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 900px;
  max-height: 85vh;
  background: #ffffff;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.lightbox-img {
  max-height: 70vh;
  width: 100%;
  object-fit: contain;
  background: #0f172a;
}

.lightbox-info {
  padding: 1.25rem 1.75rem;
  background: #ffffff;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.75);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
}

/* ==========================================================================
   Process / Werkwijze Section
   ========================================================================== */
.process-section {
  padding: 5.5rem 0;
  background: var(--color-bg-alt);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
  position: relative;
}

.process-card {
  background: #ffffff;
  padding: 2rem;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  position: relative;
  display: flex;
  flex-direction: column;
}

.process-num {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--color-border);
  line-height: 1;
  font-family: var(--font-heading);
}

.process-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.process-icon-wrap svg {
  width: 26px;
  height: 26px;
}

.process-card h4 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
}

.process-card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* ==========================================================================
   Reviews & Testimonials
   ========================================================================== */
.reviews-section {
  padding: 5.5rem 0;
}

.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 3.5rem;
}

.review-card {
  background: #ffffff;
  padding: 2.25rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  display: flex;
  gap: 0.25rem;
  color: #f59e0b;
  margin-bottom: 1.25rem;
}

.review-stars svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.review-text {
  font-size: 0.95rem;
  color: var(--color-text-main);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.author-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  color: var(--color-accent);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.author-info h5 {
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 0.1rem;
}

.author-info span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ==========================================================================
   FAQ Accordion Section
   ========================================================================== */
.faq-section {
  padding: 5.5rem 0;
  background: var(--color-bg-alt);
}

.faq-container {
  max-width: 800px;
  margin: 3rem auto 0 auto;
}

.faq-item {
  background: #ffffff;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  margin-bottom: 1rem;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-fast);
}

.faq-item.active {
  border-color: var(--color-accent);
}

.faq-question {
  width: 100%;
  padding: 1.35rem 1.75rem;
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-primary);
}

.faq-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-normal);
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--color-accent);
  color: #ffffff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 1.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 1.35rem;
}

/* ==========================================================================
   Contact & Quote Request Section
   ========================================================================== */
.contact-section {
  padding: 5.5rem 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 3.5rem;
  margin-top: 3.5rem;
}

.contact-info-card {
  background: var(--color-primary);
  color: #ffffff;
  padding: 3rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.contact-info-card h3 {
  color: #ffffff;
  font-size: 1.75rem;
  margin-bottom: 0.85rem;
}

.contact-info-card p {
  color: #94a3b8;
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.contact-details-list {
  display: flex;
  flex-direction: column;
  gap: 1.35rem;
  margin-bottom: 2.5rem;
}

.contact-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.contact-detail-icon {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  color: #fbbf24;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-detail-text h6 {
  color: #94a3b8;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.15rem;
}

.contact-detail-text a, .contact-detail-text span {
  color: #ffffff;
  font-weight: 600;
  font-size: 1rem;
}

.contact-guarantee-badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px dashed rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.contact-guarantee-badge svg {
  width: 32px;
  height: 32px;
  color: #fbbf24;
  flex-shrink: 0;
}

.contact-guarantee-badge h5 {
  color: #ffffff;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.contact-guarantee-badge p {
  color: #94a3b8;
  font-size: 0.8rem;
  margin-bottom: 0;
}

/* Contact Form */
.contact-form-card {
  background: #ffffff;
  padding: 3rem;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-border);
}

.form-group-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.form-label span {
  color: #ef4444;
}

.form-control {
  width: 100%;
  padding: 0.85rem 1.15rem;
  border-radius: var(--radius-md);
  border: 1.5px solid var(--color-border);
  background: #ffffff;
  color: var(--color-text-main);
  font-size: 0.95rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(217, 119, 6, 0.12);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

.form-alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  margin-bottom: 1.25rem;
  display: none;
  font-size: 0.9rem;
  font-weight: 500;
}

.form-alert.success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #bbf7d0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background: var(--color-primary-dark);
  color: #94a3b8;
  padding: 5rem 0 2rem 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 4rem;
}

.footer-brand .footer-logo-img {
  height: 56px;
  width: auto;
  max-width: 300px;
  margin-bottom: 1.25rem;
  object-fit: contain;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.footer-col h5 {
  color: #ffffff;
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
  font-family: var(--font-heading);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: #94a3b8;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: #fbbf24;
  transform: translateX(4px);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* Floating WhatsApp & Call Buttons */
.floating-actions {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 990;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.floating-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: var(--shadow-xl);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.floating-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.floating-btn.whatsapp {
  background: #25d366;
}

.floating-btn.scroll-top {
  background: var(--color-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal), transform var(--transition-fast);
}

.floating-btn.scroll-top.visible {
  opacity: 1;
  pointer-events: auto;
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .usp-strip-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .top-bar {
    display: none;
  }

  .nav-menu, .nav-actions .btn-secondary {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .hero-title {
    font-size: 2.25rem;
  }

  .usp-strip {
    margin-top: 1rem;
  }

  .usp-strip-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .calc-steps {
    grid-template-columns: 1fr 1fr;
  }

  .form-group-row {
    grid-template-columns: 1fr;
  }

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