/* ============================================
   tunderman.io — Design System & Page Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
  --bg: #F4F1EB;
  --text: #1E1E1E;
  --primary: #1B3A4B;
  --accent: #B5651D;
  --muted: #C4B5A0;
  --bg-light: #FAF8F1;
  --bg-dark: #EBE7DD;
  --primary-light: #2A5468;
  --primary-dark: #122A36;
  --accent-light: #D4943F;
  --accent-dark: #8A4D16;
  --text-light: #5A5A5A;
  --text-lighter: #999999;

  --font-display: 'Source Serif 4', Georgia, serif;
  --font-body: 'Space Grotesk', system-ui, sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;
  --space-9: 96px;
  --space-10: 128px;

  --radius-structure: 2px;
  --radius-interactive: 4px;

  --shadow-sm: 0 1px 3px rgba(30,30,30,0.06);
  --shadow-md: 0 2px 8px rgba(30,30,30,0.08);
  --shadow-lg: 0 8px 24px rgba(30,30,30,0.10);

  --border-default: 1px solid #E0DDD5;
  --border-input: 1.5px solid #D5D0C8;

  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 400ms ease;

  --width-page: 1280px;
  --width-content: 1120px;
  --width-reading: 680px;
  --width-narrow: 480px;

  --grid-gap: 24px;
  --grid-gap-lg: 32px;

  --nav-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
  background-color: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  background: rgba(27, 58, 75, 0.15);
}

img, svg {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--text);
}

h1 {
  font-size: 40px;
  line-height: 1.1;
}

h2 {
  font-size: 32px;
  line-height: 1.15;
}

h3 {
  font-size: 24px;
  line-height: 1.2;
}

h4 {
  font-size: 20px;
  line-height: 1.3;
}

p {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  color: var(--text);
}

.text-lead {
  font-size: 20px;
  line-height: 1.4;
  color: var(--text-light);
}

.text-sm {
  font-size: 14px;
  line-height: 1.5;
}

.text-xs {
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-lighter);
}

strong {
  font-weight: 600;
}

/* --- Layout --- */
.container {
  width: 100%;
  max-width: var(--width-page);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.container--content {
  max-width: var(--width-content);
}

.container--reading {
  max-width: var(--width-reading);
}

.container--narrow {
  max-width: var(--width-narrow);
}

section {
  padding: var(--space-9) 0;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 16px;
  line-height: 1;
  border: none;
  border-radius: var(--radius-interactive);
  cursor: pointer;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  padding: 14px 28px;
  white-space: nowrap;
}

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

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

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

.btn--accent {
  background-color: var(--accent);
  color: #F4F1EB;
}

.btn--accent:hover {
  background-color: var(--accent-light);
}

.btn--accent:active {
  background-color: var(--accent-dark);
}

.btn--outline {
  background-color: transparent;
  border: 1.5px solid var(--primary);
  color: var(--primary);
}

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

.btn--ghost {
  background: none;
  border: none;
  color: var(--accent);
  font-weight: 500;
  padding: 0;
}

.btn--ghost:hover {
  color: var(--accent-dark);
}

.btn--sm {
  padding: 6px 14px;
  font-size: 14px;
}

.btn--md {
  padding: 10px 20px;
  font-size: 15px;
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  background-color: var(--bg);
  border-bottom: var(--border-default);
  display: flex;
  align-items: center;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--width-page);
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-img {
  height: 28px;
  width: auto;
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--text);
  transition: color var(--transition-fast);
}

.nav__link:hover {
  color: var(--primary);
}

.nav__cta {
  font-size: 14px;
  padding: 8px 16px;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--text);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.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 menu */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background-color: var(--bg);
  border-bottom: var(--border-default);
  padding: var(--space-5);
  z-index: 99;
}

.nav__mobile.active {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.nav__mobile .nav__link {
  font-size: 16px;
  padding: var(--space-3) 0;
}

.nav__mobile .btn {
  margin-top: var(--space-2);
  text-align: center;
}

/* --- Language Switch --- */
.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.lang-switch__btn {
  background: none;
  border: none;
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 14px;
  color: var(--text-lighter);
  cursor: pointer;
  padding: 2px 4px;
  transition: color var(--transition-fast);
}

.lang-switch__btn.active {
  color: var(--primary);
  font-weight: 600;
}

.lang-switch__btn:hover:not(.active) {
  color: var(--text);
}

.lang-switch__sep {
  color: var(--text-lighter);
  font-size: 12px;
  user-select: none;
}

/* --- Hero --- */
.hero {
  padding: var(--space-10) 0 var(--space-9);
  text-align: center;
}

.hero__headline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 40px;
  line-height: 1.1;
  color: var(--text);
  max-width: 800px;
  margin: 0 auto var(--space-5);
}

.hero__sub {
  font-size: 20px;
  line-height: 1.4;
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto var(--space-7);
}

.hero__cta {
  font-size: 16px;
}

/* --- Wat we doen --- */
.wat-we-doen {
  background-color: var(--bg);
}

.wat-we-doen p {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text);
}

.wat-we-doen p + p {
  margin-top: var(--space-5);
}

/* --- Hoe het werkt --- */
.hoe-het-werkt {
  background-color: var(--bg-dark);
}

.hoe-het-werkt__title {
  text-align: center;
  margin-bottom: var(--space-8);
}

.steps {
  max-width: var(--width-reading);
  margin: 0 auto;
}

.step {
  position: relative;
  padding-left: var(--space-8);
  padding-bottom: var(--space-8);
}

.step:last-child {
  padding-bottom: 0;
}

/* Vertical connecting line */
.step::before {
  content: '';
  position: absolute;
  left: 19px;
  top: 44px;
  bottom: 0;
  width: 1px;
  background-color: var(--muted);
}

.step:last-child::before {
  display: none;
}

.step__number {
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 32px;
  line-height: 1.2;
  color: var(--primary);
  width: 40px;
  text-align: center;
}

.step__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.step__body p {
  margin-bottom: var(--space-4);
}

.step__deliverable {
  font-weight: 500;
}

/* --- Anders --- */
.anders {
  background-color: var(--bg);
}

.anders p {
  font-size: 18px;
  line-height: 1.6;
}

.anders p + p {
  margin-top: var(--space-5);
}

/* --- Veiligheid (dark/inverted) --- */
.veiligheid {
  background-color: var(--primary);
  color: var(--bg);
  padding: var(--space-8) 0;
}

.veiligheid h2 {
  color: var(--bg);
}

.veiligheid p {
  color: rgba(244, 241, 235, 0.85);
  font-size: 18px;
  line-height: 1.6;
  margin-top: var(--space-4);
}

/* --- Scan (Quiz) --- */
.scan {
  background-color: var(--bg-dark);
  padding-bottom: var(--space-8);
}

.scan__intro {
  text-align: center;
  margin-bottom: var(--space-7);
}

.scan__intro h2 {
  margin-bottom: var(--space-3);
}

.scan__intro p {
  color: var(--text-light);
  font-size: 18px;
}

.scan__intro .btn {
  margin-top: var(--space-5);
}

#quiz-container {
  max-width: var(--width-narrow);
  margin: 0 auto;
}

/* --- Denken (hidden until articles exist) --- */
.denken {
  display: none;
  background-color: var(--bg);
}

.denken__title {
  text-align: center;
  margin-bottom: var(--space-7);
}

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

.article-card {
  border: 1px solid #E0DDD5;
  border-radius: var(--radius-structure);
  padding: var(--space-6);
  background-color: var(--bg-light);
  transition: border-color var(--transition-base);
}

.article-card:hover {
  border-color: var(--muted);
}

.article-card__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.2;
  margin-bottom: var(--space-4);
}

.article-card__link {
  color: var(--accent);
  font-weight: 500;
  font-size: 15px;
}

.article-card__link:hover {
  color: var(--accent-dark);
}

/* --- Contact CTA --- */
.contact {
  background-color: var(--bg);
  text-align: center;
  border-top: 1px solid #E0DDD5;
}

.contact__credibility {
  font-size: 14px;
  letter-spacing: 0.3px;
  color: var(--text-light);
  margin-bottom: var(--space-5);
}

.contact h2 {
  margin-bottom: var(--space-4);
}

.contact__promise {
  font-size: 16px;
  color: var(--text-light);
  margin-bottom: var(--space-7);
}

.contact__details {
  margin-bottom: var(--space-6);
}

.contact__details p {
  font-size: 18px;
  margin-bottom: var(--space-2);
}

.contact__details a {
  color: var(--primary);
  font-weight: 500;
  transition: color var(--transition-fast);
}

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

/* --- Footer --- */
.footer {
  border-top: var(--border-default);
  padding: var(--space-6) 0;
  text-align: center;
}

.footer p {
  font-size: 14px;
  color: var(--text-lighter);
}

/* --- Quiz Component Styles --- */
.quiz {
  background-color: var(--bg-light);
  border: 1px solid #E0DDD5;
  border-radius: var(--radius-structure);
  padding: var(--space-6);
}

.quiz__progress {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-6);
}

.quiz__progress-dot {
  flex: 1;
  height: 3px;
  background-color: #E0DDD5;
  border-radius: 2px;
  transition: background-color var(--transition-base);
}

.quiz__progress-dot.active {
  background-color: var(--primary);
}

.quiz__progress-dot.completed {
  background-color: var(--accent);
}

.quiz__question {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 24px;
  line-height: 1.2;
  margin-bottom: var(--space-6);
}

.quiz__options {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.quiz__option {
  display: block;
  width: 100%;
  text-align: left;
  padding: var(--space-4) var(--space-5);
  background-color: var(--bg);
  border: 1.5px solid #E0DDD5;
  border-radius: var(--radius-interactive);
  font-family: var(--font-body);
  font-size: 16px;
  color: var(--text);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast);
}

.quiz__option:hover {
  border-color: var(--primary);
  background-color: var(--bg-light);
}

.quiz__option.selected {
  border-color: var(--primary);
  background-color: rgba(27, 58, 75, 0.05);
}

.quiz__result {
  text-align: center;
}

.quiz__result-number {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 48px;
  color: var(--primary);
  margin-bottom: var(--space-2);
}

.quiz__result-label {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: var(--space-7);
}

.quiz__result-ctas {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
}

.quiz__result-ctas .btn {
  width: 100%;
  max-width: 320px;
  justify-content: center;
}

/* --- Responsive: Tablet (768px+) --- */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--space-7);
  }

  h1, .hero__headline {
    font-size: 48px;
  }

  h2 {
    font-size: 36px;
  }

  section {
    padding: var(--space-10) 0;
  }

  .hero {
    padding: var(--space-10) 0;
  }

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

/* --- Responsive: Desktop (1024px+) --- */
@media (min-width: 1024px) {
  .container {
    padding: 0 var(--space-8);
  }

  .nav__links {
    display: flex;
  }

  .nav__hamburger {
    display: none;
  }

  .nav__mobile {
    display: none !important;
  }

  h1, .hero__headline {
    font-size: 56px;
  }

  h2 {
    font-size: 40px;
  }

  .denken__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- Responsive: Wide (1280px+) --- */
@media (min-width: 1280px) {
  .container {
    padding: 0 80px;
  }
}