/* ==========================================================================
   Technisch Bureau Suurmeijer — Main Stylesheet
   ========================================================================== */

:root {
  /* Colors */
  --color-primary:    #1B4D7A;
  --color-secondary:  #E8F0F7;
  --color-accent:     #E67E22;
  --color-accent-dark:#C96A14;
  --color-text:       #2C3E50;
  --color-text-muted: #7F8C9B;
  --color-bg:         #FFFFFF;
  --color-bg-alt:     #F5F8FA;
  --color-border:     #D5DDE5;
  --color-white:      #FFFFFF;
  --color-success:    #27AE60;
  --color-error:      #E74C3C;

  /* Typography */
  --font-display: 'Outfit', sans-serif;
  --font-body:    'Source Sans 3', sans-serif;

  /* Spacing */
  --space-xs:  0.25rem;
  --space-sm:  0.5rem;
  --space-md:  1rem;
  --space-lg:  2rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;

  /* Layout */
  --max-w: 1200px;
  --radius: 6px;
  --radius-lg: 8px;

  /* Transitions */
  --transition: all 0.2s ease;
  --transition-slow: all 0.5s ease;
}

/* ==========================================================================
   Reset
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  font-weight: 400;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

ul, ol {
  list-style: none;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2 {
  font-family: var(--font-display);
  color: var(--color-primary);
  line-height: 1.15;
}

h3 {
  font-family: var(--font-body);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-primary);
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-md);
}

h3 {
  font-size: 1.125rem;
  margin-bottom: var(--space-sm);
}

p {
  margin-bottom: var(--space-md);
}

p:last-child {
  margin-bottom: 0;
}

small, .text-small {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-muted {
  color: var(--color-text-muted);
}

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

.text-white {
  color: var(--color-white);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.section {
  padding: var(--space-xl) 0;
}

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

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

.section--accent {
  background-color: var(--color-accent);
  color: var(--color-white);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.grid-4 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-primary);
  transition: var(--transition);
}

.nav--scrolled {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  max-width: var(--max-w);
  margin: 0 auto;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-white);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.125rem;
  text-decoration: none;
  white-space: nowrap;
}

.nav__logo:hover {
  color: var(--color-white);
}

.nav__logo img {
  height: 36px;
  width: auto;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-lg);
}

.nav__links a {
  color: var(--color-white);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  text-decoration: none;
  padding: var(--space-xs) 0;
  border-bottom: 2px solid transparent;
  transition: var(--transition);
}

.nav__links a:hover,
.nav__links a.active {
  border-bottom-color: var(--color-accent);
  color: var(--color-white);
}

.nav__phone {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  background-color: var(--color-accent);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav__phone:hover {
  background-color: var(--color-accent-dark);
  color: var(--color-white);
}

.nav__phone svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 30px;
  height: 30px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

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

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

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

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

/* Mobile drawer */
.nav__drawer {
  display: none;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 280px;
  background-color: var(--color-white);
  z-index: 999;
  padding: var(--space-3xl) var(--space-lg) var(--space-lg);
  flex-direction: column;
  gap: var(--space-md);
  box-shadow: -4px 0 16px rgba(0, 0, 0, 0.15);
}

.nav__drawer.open {
  display: flex;
}

.nav__drawer a {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
  text-decoration: none;
}

.nav__drawer a:hover,
.nav__drawer a.active {
  color: var(--color-accent);
}

.nav__drawer .nav__phone {
  margin-top: var(--space-md);
  justify-content: center;
}

.nav__overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.4);
  z-index: 998;
}

.nav__overlay.open {
  display: block;
}

/* Body offset for fixed nav */
body {
  padding-top: 70px;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #245d8f 100%);
  color: var(--color-white);
  padding: var(--space-2xl) 0;
  position: relative;
}

.hero__content {
  max-width: 700px;
}

.hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-md);
}

.hero__sub {
  font-size: 1.0625rem;
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-lg);
  max-width: 600px;
}

.hero__ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-lg);
  align-items: center;
}

.hero__badge {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

.hero__badge svg {
  width: 28px;
  height: 28px;
  fill: var(--color-accent);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.875rem 2rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1;
}

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

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

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

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

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

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

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

.btn--white:hover {
  background-color: rgba(255, 255, 255, 0.9);
  color: var(--color-accent-dark);
}

.btn--full {
  width: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

a:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav__links a:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 4px;
}

.nav__hamburger:focus-visible {
  outline: 2px solid var(--color-white);
  outline-offset: 4px;
}

/* ==========================================================================
   Cards
   ========================================================================== */

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

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.card__icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.card h3 {
  margin-bottom: var(--space-sm);
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* ==========================================================================
   Why-us columns
   ========================================================================== */

.why-us__item {
  text-align: center;
  padding: var(--space-lg);
}

.why-us__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  color: var(--color-accent);
}

.why-us__icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.why-us__item h3 {
  margin-bottom: var(--space-sm);
}

.why-us__item p {
  color: var(--color-text-muted);
}

/* ==========================================================================
   CTA Banner
   ========================================================================== */

.cta-banner {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn {
  margin-bottom: var(--space-md);
}

.cta-banner__phone {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.9);
}

.cta-banner__phone a {
  color: var(--color-white);
  font-weight: 600;
  text-decoration: underline;
}

.cta-banner__phone a:hover {
  color: var(--color-white);
}

/* Legal banner variant */
.legal-banner {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  text-align: center;
}

.legal-banner p {
  max-width: 800px;
  margin: 0 auto var(--space-lg);
  font-size: 1.0625rem;
  color: rgba(255, 255, 255, 0.95);
}

.legal-banner a {
  color: var(--color-white);
  text-decoration: underline;
  font-weight: 600;
}

.legal-banner a:hover {
  color: var(--color-white);
}

/* ==========================================================================
   Page hero (interior pages)
   ========================================================================== */

.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, #245d8f 100%);
  color: var(--color-white);
  padding: var(--space-xl) 0;
  text-align: center;
}

.page-hero h1 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 600px;
  margin: 0 auto;
}

/* ==========================================================================
   Services page
   ========================================================================== */

.service-block {
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--color-border);
}

.service-block:last-of-type {
  border-bottom: none;
}

.service-block h2 {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.service-block__icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.service-block__icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.service-block p {
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}

.service-list li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-weight: 600;
  color: var(--color-text);
}

.service-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  background-color: var(--color-accent);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ==========================================================================
   About page
   ========================================================================== */

.about-story {
  padding: var(--space-xl) 0;
}

.about-story p {
  max-width: 700px;
  font-size: 1.0625rem;
}

.cert-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.cert-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-lg);
}

.cert-item__icon {
  width: 40px;
  height: 40px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.cert-item__icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.cert-item h3 {
  margin-bottom: var(--space-xs);
}

.cert-item p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
}

/* Klantenportaal section */
.portaal-section {
  padding: var(--space-xl) 0;
}

/* ==========================================================================
   CO-vrij page
   ========================================================================== */

.content-section {
  padding: var(--space-xl) 0;
}

.content-section p {
  max-width: 700px;
}

.checklist {
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  max-width: 600px;
}

.checklist__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-sm) 0;
}

.checklist__item + .checklist__item {
  border-top: 1px solid var(--color-border);
}

.checklist__check {
  width: 24px;
  height: 24px;
  color: var(--color-success);
  flex-shrink: 0;
  margin-top: 2px;
}

.checklist__check svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.checklist__item span {
  font-weight: 600;
}

/* ==========================================================================
   Contact page
   ========================================================================== */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
}

/* Form */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: var(--space-xs);
  font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-white);
  transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27, 77, 122, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-group input.error,
.form-group select.error,
.form-group textarea.error {
  border-color: var(--color-error);
}

.form-message {
  padding: var(--space-md);
  border-radius: var(--radius);
  margin-bottom: var(--space-lg);
  font-weight: 600;
}

.form-message--success {
  background-color: color-mix(in srgb, var(--color-success) 10%, var(--color-white));
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-message--error {
  background-color: color-mix(in srgb, var(--color-error) 10%, var(--color-white));
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

/* Contact details sidebar */
.contact-info__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.contact-info__icon {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 4px;
}

.contact-info__icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.contact-info__item strong {
  display: block;
  margin-bottom: var(--space-xs);
}

.contact-info__item a {
  color: var(--color-accent);
  font-weight: 600;
}

/* Google Maps */
.map-embed {
  width: 100%;
  height: 300px;
  border: none;
  border-radius: var(--radius-lg);
  margin-top: var(--space-lg);
}

/* Emergency banner */
.emergency-banner {
  background-color: var(--color-accent);
  color: var(--color-white);
  padding: var(--space-lg) 0;
  text-align: center;
}

.emergency-banner h2 {
  color: var(--color-white);
  margin-bottom: var(--space-sm);
}

.emergency-banner a {
  color: var(--color-white);
  font-weight: 700;
  text-decoration: underline;
  font-size: 1.25rem;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-2xl) 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer h3 {
  color: var(--color-white);
  font-family: var(--font-display);
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
}

.footer p {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__links a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
  transition: var(--transition);
}

.footer__links a:hover {
  color: var(--color-accent);
}

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  margin-bottom: var(--space-sm);
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9375rem;
}

.footer__contact-item svg {
  width: 18px;
  height: 18px;
  fill: var(--color-accent);
  flex-shrink: 0;
  margin-top: 3px;
}

.footer__contact-item a {
  color: rgba(255, 255, 255, 0.75);
}

.footer__contact-item a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding: var(--space-md) 0;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ==========================================================================
   Scroll animations
   ========================================================================== */

.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition-slow);
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }

  *, *::before, *::after {
    transition: none;
    animation: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ==========================================================================
   Utilities
   ========================================================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.mt-lg {
  margin-top: var(--space-lg);
}

.mb-lg {
  margin-bottom: var(--space-lg);
}

.mt-xl {
  margin-top: var(--space-xl);
}