/* ================================================================
   KOPPENS VENTILATIETECHNIEK — STYLE.CSS
   ================================================================ */

:root {
  /* Brand */
  --primary: #0B2545;
  --primary-dark: #06162B;
  --primary-light: #1B3A6B;
  --accent: #13A4EC;
  --accent-light: #5BC0F0;
  --accent-dark: #0E7FB8;
  --emergency: #DC2626;
  --emergency-dark: #B91C1C;

  /* Neutrals */
  --bg: #FFFFFF;
  --bg-alt: #F4F7FB;
  --bg-dark: #0B2545;
  --text: #1A2B42;
  --text-soft: #506180;
  --text-muted: #8593A8;
  --border: #E2E8F0;
  --border-soft: #EEF2F7;
  --white: #FFFFFF;

  /* Layout */
  --container: 1280px;
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 22px;

  /* Animation */
  --ease: cubic-bezier(0.19, 1, 0.22, 1);
  --duration: 1400ms;
  --stagger: 220ms;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(11, 37, 69, 0.06);
  --shadow: 0 8px 30px rgba(11, 37, 69, 0.10);
  --shadow-lg: 0 20px 60px rgba(11, 37, 69, 0.15);

  /* Fonts */
  --font-head: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--accent-dark); }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
ul { list-style: none; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 800; line-height: 1.15; color: var(--primary); letter-spacing: -0.02em; }
h1 { font-size: clamp(36px, 5vw, 72px); }
h2 { font-size: clamp(28px, 3.6vw, 48px); }
h3 { font-size: clamp(20px, 2vw, 28px); font-weight: 700; }
h4 { font-size: 18px; font-weight: 700; }
p { margin-bottom: 1em; color: var(--text-soft); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--primary); color: var(--white); }
.section--dark h2, .section--dark h3, .section--dark h4 { color: var(--white); }
.section--dark p { color: rgba(255, 255, 255, 0.78); }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-head { text-align: center; max-width: 720px; margin: 0 auto 64px; }
.section-head p { font-size: 18px; }

/* ----------- BUTTONS ----------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 10px;
  padding: 16px 32px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.3px;
  border-radius: var(--radius-sm);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s, color 0.25s;
  min-height: 48px;
  text-align: center;
  white-space: nowrap;
}
.btn--primary { background: var(--accent); color: var(--white); box-shadow: 0 6px 18px rgba(19, 164, 236, 0.28); }
.btn--primary:hover { background: var(--accent-dark); color: var(--white); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(19, 164, 236, 0.4); }
.btn--secondary { background: var(--white); color: var(--primary); border: 2px solid var(--white); }
.btn--secondary:hover { background: transparent; color: var(--white); transform: translateY(-2px); }
.btn--outline { background: transparent; color: var(--primary); border: 2px solid var(--primary); }
.btn--outline:hover { background: var(--primary); color: var(--white); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--accent); padding: 10px 0; }
.btn--ghost:hover { color: var(--accent-dark); gap: 14px; }
.btn--emergency { background: var(--emergency); color: var(--white); box-shadow: 0 6px 18px rgba(220, 38, 38, 0.3); animation: pulse-btn 2.5s ease-in-out infinite; }
.btn--emergency:hover { background: var(--emergency-dark); color: var(--white); transform: translateY(-2px); }
@keyframes pulse-btn {
  0%, 100% { box-shadow: 0 6px 18px rgba(220, 38, 38, 0.3); }
  50% { box-shadow: 0 6px 28px rgba(220, 38, 38, 0.55); }
}
.btn--lg { padding: 20px 40px; font-size: 17px; min-height: 56px; }
.btn .arrow { display: inline-block; transition: transform 0.25s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

/* ----------- NAVIGATIE ----------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 18px 0;
  transition: all 0.35s var(--ease);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.nav.scrolled {
  padding: 12px 0;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--border-soft);
  box-shadow: 0 2px 14px rgba(11, 37, 69, 0.06);
}
.nav__inner {
  max-width: var(--container);
  margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
}
.nav__logo img { height: 44px; width: auto; transition: height 0.35s var(--ease); }
.nav.scrolled .nav__logo img { height: 38px; }
.nav__menu {
  display: flex; gap: 4px;
  align-items: center;
}
.nav__menu a {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--primary);
  font-size: 15px;
  padding: 10px 16px;
  border-radius: 6px;
  position: relative;
  transition: color 0.2s, background 0.2s;
}
.nav__menu a:hover, .nav__menu a.active { color: var(--accent); background: rgba(19, 164, 236, 0.07); }
.nav__cta {
  display: flex; gap: 10px; align-items: center;
}
.nav__cta .btn { padding: 12px 22px; min-height: 44px; font-size: 14px; }
.nav__phone {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--primary);
  font-size: 14px;
  display: flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  border-radius: 6px;
  transition: color 0.2s;
}
.nav__phone:hover { color: var(--accent); }
.nav__phone svg { width: 16px; height: 16px; }

.nav__hamburger {
  display: none;
  width: 44px; height: 44px;
  flex-direction: column; justify-content: center; align-items: center;
  gap: 5px;
  border-radius: 6px;
}
.nav__hamburger span {
  width: 24px; height: 2px; background: var(--primary);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s;
}
.nav__hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__hamburger.open span:nth-child(2) { opacity: 0; }
.nav__hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ----------- HERO SLIDER ----------- */
.hero {
  position: relative;
  height: 100vh; min-height: 640px;
  overflow: hidden;
}
.hero__slides { position: absolute; inset: 0; }
.hero__slide {
  position: absolute; inset: 0;
  opacity: 0;
  transition: opacity 1.2s var(--ease);
}
.hero__slide.active { opacity: 1; z-index: 2; }
.hero__slide-img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1);
  animation: kenburns 12s ease-out forwards;
  clip-path: inset(0 100% 0 0);
}
.hero__slide.active .hero__slide-img {
  animation: kenburns 12s ease-out forwards, hero-reveal 1.4s var(--ease) forwards;
}
@keyframes kenburns {
  0% { transform: scale(1); }
  100% { transform: scale(1.12); }
}
@keyframes hero-reveal {
  0% { clip-path: inset(0 100% 0 0); }
  100% { clip-path: inset(0 0 0 0); }
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.78) 0%, rgba(11, 37, 69, 0.55) 50%, rgba(11, 37, 69, 0.7) 100%);
  z-index: 3;
}
.hero__content {
  position: relative;
  z-index: 4;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  color: var(--white);
}
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 700; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 24px;
  opacity: 0;
  transform: translateX(-80px);
  animation: slide-in 1.4s var(--ease) 0.2s forwards;
}
.hero__eyebrow::before {
  content: ''; display: block; width: 32px; height: 2px; background: var(--accent);
}
.hero h1 {
  color: var(--white);
  font-size: clamp(38px, 6vw, 76px);
  max-width: 900px;
  margin-bottom: 24px;
  opacity: 0;
  transform: translateX(-80px);
  animation: slide-in 1.4s var(--ease) 0.4s forwards;
}
.hero__subtitle {
  font-size: clamp(17px, 1.5vw, 21px);
  color: rgba(255, 255, 255, 0.88);
  max-width: 640px;
  margin-bottom: 40px;
  opacity: 0;
  transform: translateX(-80px);
  animation: slide-in 1.4s var(--ease) 0.6s forwards;
}
.hero__ctas {
  display: flex; gap: 16px; flex-wrap: wrap;
  opacity: 0;
  transform: translateX(-80px);
  animation: slide-in 1.4s var(--ease) 0.8s forwards;
}
@keyframes slide-in {
  to { opacity: 1; transform: translateX(0); }
}
.hero__nav {
  position: absolute;
  bottom: 40px; left: 50%; transform: translateX(-50%);
  z-index: 5;
  display: flex; gap: 12px;
}
.hero__nav button {
  width: 36px; height: 4px; border-radius: 2px;
  background: rgba(255, 255, 255, 0.35);
  transition: background 0.3s, width 0.3s;
}
.hero__nav button.active { background: var(--accent); width: 56px; }

/* ----------- INTRO / OVER ONS ----------- */
.intro__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.intro__text h2 { margin-bottom: 24px; }
.intro__text p { font-size: 17px; margin-bottom: 20px; }
.usp-list { display: flex; flex-direction: column; gap: 18px; }
.usp-list li {
  display: flex; gap: 14px; align-items: flex-start;
  font-size: 16px;
  color: var(--text);
}
.usp-list li svg {
  flex-shrink: 0;
  width: 24px; height: 24px;
  color: var(--accent);
  margin-top: 2px;
}
.usp-list li strong {
  display: block;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 2px;
}

/* ----------- WAAROM (6-grid) ----------- */
.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.why-card {
  background: var(--white);
  padding: 36px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border-soft);
  transition: transform 0.35s var(--ease), box-shadow 0.35s var(--ease), border-color 0.35s;
}
.why-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.why-card__icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, rgba(19,164,236,0.12), rgba(19,164,236,0.04));
  border-radius: var(--radius-sm);
  color: var(--accent);
  margin-bottom: 22px;
}
.why-card__icon svg { width: 28px; height: 28px; }
.why-card h3 { font-size: 19px; margin-bottom: 10px; }
.why-card p { font-size: 15px; margin: 0; }

/* ----------- TICKER ----------- */
.ticker {
  background: var(--primary);
  padding: 32px 0;
  overflow: hidden;
  position: relative;
}
.ticker__track {
  display: flex; gap: 56px;
  animation: ticker 60s linear infinite;
  width: max-content;
}
.ticker:hover .ticker__track { animation-play-state: paused; }
.ticker__item {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 22px;
  color: rgba(255, 255, 255, 0.85);
  letter-spacing: -0.01em;
  display: flex; align-items: center; gap: 56px;
}
.ticker__item::after {
  content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
}
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ----------- DIENSTEN CARDS ----------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  display: flex; flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.service-card__media {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-alt);
}
.service-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.service-card:hover .service-card__media img { transform: scale(1.06); }
.service-card__body {
  padding: 28px;
  display: flex; flex-direction: column;
  flex: 1;
  gap: 10px;
}
.service-card__body h3 { font-size: 22px; margin: 0; }
.service-card__body p {
  flex: 1;
  font-size: 15px;
  margin: 0;
}
.service-card__link {
  margin-top: 12px;
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--accent);
  font-size: 15px;
}
.service-card__link svg { width: 16px; height: 16px; transition: transform 0.25s var(--ease); }
.service-card:hover .service-card__link svg { transform: translateX(4px); }

/* ----------- WERKWIJZE ----------- */
.process {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}
.process::before {
  content: '';
  position: absolute;
  top: 36px; left: 10%; right: 10%;
  height: 2px;
  background: linear-gradient(to right, var(--accent) 0%, var(--accent) 50%, var(--border) 50%, var(--border) 100%);
  background-size: 12px 2px;
  background-repeat: repeat-x;
  z-index: 0;
}
.process__step {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
}
.process__num {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--white);
  border: 3px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 28px;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
  position: relative;
  z-index: 2;
}
.process__step h4 { margin-bottom: 8px; }
.process__step p { font-size: 14px; margin: 0; }

/* ----------- PROJECTEN GRID ----------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.project-card {
  display: block;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--primary);
  transition: transform 0.4s var(--ease);
}
.project-card:hover { transform: translateY(-4px); }
.project-card__media {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.project-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.project-card:hover .project-card__media img { transform: scale(1.08); }
.project-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11, 37, 69, 0.92) 0%, rgba(11, 37, 69, 0.4) 50%, transparent 100%);
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 28px;
  color: var(--white);
}
.project-card__overlay h3 { color: var(--white); font-size: 21px; margin-bottom: 4px; }
.project-card__overlay p {
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
  margin: 0;
  display: flex; align-items: center; gap: 6px;
}
.project-card__overlay svg { width: 14px; height: 14px; }

/* ----------- TIPS CARDS ----------- */
.tips-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.tip-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  display: flex; flex-direction: column;
}
.tip-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.tip-card__media { aspect-ratio: 16/10; overflow: hidden; }
.tip-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s var(--ease); }
.tip-card:hover .tip-card__media img { transform: scale(1.05); }
.tip-card__body { padding: 26px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.tip-card__meta {
  font-size: 12px; font-weight: 600; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 1.2px;
  display: flex; gap: 16px;
}
.tip-card__meta span { display: flex; align-items: center; gap: 6px; }
.tip-card__body h3 { font-size: 20px; margin: 0; line-height: 1.3; }
.tip-card__body p { font-size: 15px; flex: 1; margin: 0; }
.tip-card__link {
  margin-top: 8px;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 6px;
}

/* ----------- REVIEWS ----------- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.review-card {
  background: var(--white);
  padding: 36px 30px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-soft);
  position: relative;
  display: flex; flex-direction: column;
}
.review-card__stars {
  display: flex; gap: 2px; margin-bottom: 18px;
  color: #FBBF24;
}
.review-card__stars svg { width: 20px; height: 20px; }
.review-card__quote {
  font-size: 16px;
  color: var(--text);
  font-style: italic;
  flex: 1;
  margin-bottom: 24px;
  line-height: 1.65;
}
.review-card__author {
  display: flex; align-items: center; gap: 14px;
  border-top: 1px solid var(--border-soft);
  padding-top: 18px;
}
.review-card__avatar {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  display: flex; align-items: center; justify-content: center;
  color: var(--white);
  font-family: var(--font-head); font-weight: 700;
  font-size: 18px;
}
.review-card__info strong { display: block; color: var(--primary); font-size: 15px; }
.review-card__info span { font-size: 13px; color: var(--text-muted); }

/* ----------- OFFERTE FORM ----------- */
.quote {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: start;
  background: var(--white);
  padding: 60px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}
.quote__usp h2 { margin-bottom: 16px; }
.quote__usp p { font-size: 16px; margin-bottom: 28px; }
.quote__usp .usp-list li { font-size: 15px; }

.form { display: flex; flex-direction: column; gap: 16px; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form__field { display: flex; flex-direction: column; gap: 6px; }
.form__field label {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 13px;
  color: var(--primary);
  letter-spacing: 0.3px;
}
.form__field input, .form__field select, .form__field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 14px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  background: var(--white);
  transition: border-color 0.2s, box-shadow 0.2s;
  width: 100%;
}
.form__field input:focus, .form__field select:focus, .form__field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(19, 164, 236, 0.12);
}
.form__field textarea { resize: vertical; min-height: 120px; }
.form__field--radio-group { gap: 10px; }
.form__radios { display: flex; gap: 8px; flex-wrap: wrap; }
.form__radio {
  flex: 1; min-width: 120px;
  position: relative;
}
.form__radio input { position: absolute; opacity: 0; }
.form__radio label {
  display: block;
  padding: 12px 16px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text);
}
.form__radio input:checked + label {
  border-color: var(--accent);
  background: rgba(19, 164, 236, 0.08);
  color: var(--accent);
}
.form__upload {
  border: 2px dashed var(--border);
  border-radius: var(--radius-sm);
  padding: 28px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.form__upload:hover { border-color: var(--accent); background: var(--bg-alt); }
.form__upload svg { width: 32px; height: 32px; margin-bottom: 10px; color: var(--accent); }
.form__submit { margin-top: 8px; }

/* ----------- FAQ ----------- */
.faq { max-width: 880px; margin: 0 auto; }
.faq__item {
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.3s;
}
.faq__item.open { box-shadow: var(--shadow); }
.faq__q {
  width: 100%; text-align: left;
  padding: 22px 26px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  color: var(--primary);
  display: flex; justify-content: space-between; align-items: center;
  gap: 16px;
}
.faq__plus {
  flex-shrink: 0;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: rgba(19, 164, 236, 0.1);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  transition: transform 0.4s var(--ease);
}
.faq__item.open .faq__plus { transform: rotate(45deg); background: var(--accent); color: var(--white); }
.faq__plus svg { width: 14px; height: 14px; }
.faq__a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s var(--ease);
}
.faq__a-inner {
  padding: 0 26px 24px;
  font-size: 15px;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ----------- FOOTER ----------- */
.footer {
  background: var(--primary-dark);
  color: rgba(255, 255, 255, 0.78);
  padding: 80px 0 0;
  position: relative;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
}
.footer__logo img { height: 50px; width: auto; margin-bottom: 22px; }
.footer__col h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 22px;
  letter-spacing: 0.2px;
}
.footer__col ul { display: flex; flex-direction: column; gap: 12px; }
.footer__col a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  transition: color 0.2s, padding 0.2s;
}
.footer__col a:hover { color: var(--accent-light); padding-left: 4px; }
.footer__col p, .footer__col li { font-size: 14px; }
.footer__col strong { color: var(--white); font-weight: 600; }
.footer__contact-item {
  display: flex; gap: 12px; align-items: flex-start;
  margin-bottom: 14px;
}
.footer__contact-item svg {
  flex-shrink: 0;
  width: 18px; height: 18px;
  color: var(--accent-light);
  margin-top: 2px;
}
.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
}
.footer__bottom a { color: rgba(255, 255, 255, 0.7); }

/* ----------- WHATSAPP WIDGET ----------- */
.wa-widget {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 9998;
}
.wa-widget__button {
  position: relative;
  display: flex; align-items: center; justify-content: center;
  width: 60px; height: 60px;
  background: #25D366;
  color: var(--white);
  border-radius: 50%;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.wa-widget__button:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.6);
}
.wa-widget__button svg { width: 32px; height: 32px; }
.wa-widget__button::before, .wa-widget__button::after {
  content: '';
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 2px solid #25D366;
  animation: wa-pulse 2s ease-out infinite;
}
.wa-widget__button::after { animation-delay: 1s; }
@keyframes wa-pulse {
  0% { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(1.6); opacity: 0; }
}
.wa-widget__tooltip {
  position: absolute;
  right: 75px; top: 50%;
  transform: translateY(-50%) translateX(8px);
  background: var(--primary);
  color: var(--white);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s, transform 0.2s var(--ease);
  box-shadow: var(--shadow);
}
.wa-widget__tooltip::after {
  content: '';
  position: absolute;
  right: -6px; top: 50%; transform: translateY(-50%);
  border: 6px solid transparent;
  border-left-color: var(--primary);
}
.wa-widget:hover .wa-widget__tooltip {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}

/* ----------- LANGUAGE SWITCHER ----------- */
.lang-switch {
  position: fixed;
  bottom: 24px; left: 24px;
  z-index: 9999;
  font-family: var(--font-head);
}
.lang-switch__current {
  display: flex; align-items: center; gap: 8px;
  background: var(--white);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 100px;
  font-weight: 700;
  font-size: 13px;
  color: var(--primary);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
  transition: box-shadow 0.2s, transform 0.2s;
}
.lang-switch__current:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}
.lang-switch__flag {
  width: 22px; height: 22px;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 14px;
  background: var(--bg-alt);
}
.lang-switch__menu {
  position: absolute;
  bottom: calc(100% + 10px); left: 0;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 8px;
  min-width: 200px;
  display: none;
  flex-direction: column;
  gap: 2px;
  border: 1px solid var(--border-soft);
}
.lang-switch.open .lang-switch__menu { display: flex; }
.lang-switch__option {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
  width: 100%;
}
.lang-switch__option:hover { background: var(--bg-alt); }
.lang-switch__option.active { background: rgba(19, 164, 236, 0.08); color: var(--accent); font-weight: 700; }
.lang-switch__option strong { font-weight: 700; }
.lang-switch__chevron { transition: transform 0.2s; }
.lang-switch.open .lang-switch__chevron { transform: rotate(180deg); }

/* ----------- SUBPAGE HERO BANNER (50vh) ----------- */
.subhero {
  position: relative;
  height: 50vh; min-height: 380px;
  margin-top: 0;
  overflow: hidden;
}
.subhero__img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  animation: kenburns 14s ease-out forwards;
}
.subhero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(11, 37, 69, 0.85) 0%, rgba(11, 37, 69, 0.55) 100%);
}
.subhero__content {
  position: relative; z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 100px 24px 0;
  height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  color: var(--white);
}
.breadcrumb {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 18px;
  letter-spacing: 0.3px;
}
.breadcrumb a { color: rgba(255, 255, 255, 0.78); }
.breadcrumb a:hover { color: var(--accent-light); }
.breadcrumb span { margin: 0 8px; opacity: 0.5; }
.subhero h1 {
  color: var(--white);
  font-size: clamp(34px, 4.5vw, 56px);
  margin-bottom: 16px;
  max-width: 880px;
}
.subhero__subtitle {
  font-size: clamp(16px, 1.4vw, 19px);
  color: rgba(255, 255, 255, 0.85);
  max-width: 640px;
}

/* ----------- CONTENT 2-KOLOMS ----------- */
.content-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.content-cols--reverse .content-cols__img { order: -1; }
.content-cols__text h2 { margin-bottom: 20px; }
.content-cols__text p { font-size: 16px; }
.content-cols__img {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  box-shadow: var(--shadow);
}
.content-cols__img img { width: 100%; height: 100%; object-fit: cover; }
.content-cols + .content-cols { margin-top: 80px; }

/* ----------- CTA BAND ----------- */
.cta-band {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent-dark) 100%);
  padding: 80px 0;
  text-align: center;
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.cta-band::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(19, 164, 236, 0.3) 0%, transparent 60%),
    radial-gradient(circle at 80% 50%, rgba(19, 164, 236, 0.15) 0%, transparent 60%);
}
.cta-band__inner { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; padding: 0 24px; }
.cta-band h2 { color: var(--white); margin-bottom: 16px; font-size: clamp(28px, 3.4vw, 44px); }
.cta-band p { color: rgba(255, 255, 255, 0.88); font-size: 18px; margin-bottom: 32px; }
.cta-band__buttons { display: inline-flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ----------- CONTACT PAGE ----------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}
.contact-info h2 { margin-bottom: 24px; }
.contact-info-block {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-soft);
}
.contact-info-block:last-child { border-bottom: 0; }
.contact-info-block__icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  border-radius: 10px;
  background: rgba(19, 164, 236, 0.1);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.contact-info-block__icon svg { width: 20px; height: 20px; }
.contact-info-block strong { display: block; color: var(--primary); font-weight: 700; margin-bottom: 4px; }
.contact-info-block p, .contact-info-block a { font-size: 15px; color: var(--text-soft); }
.contact-info-block a:hover { color: var(--accent); }

.map-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: 48px;
}
.map-wrap iframe {
  width: 100%;
  height: 380px;
  border: 0;
  display: block;
}

/* ----------- ABOUT TIMELINE ----------- */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
  padding-left: 32px;
  border-left: 2px solid var(--accent);
}
.timeline__item {
  position: relative;
}
.timeline__item::before {
  content: '';
  position: absolute;
  left: -41px; top: 6px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--white);
  box-shadow: 0 0 0 2px var(--accent);
}
.timeline__year {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 22px;
  color: var(--accent);
  margin-bottom: 4px;
}
.timeline__item h4 { margin-bottom: 6px; }

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.value {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-alt);
  border-radius: var(--radius);
}
.value__icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  background: var(--white);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 18px;
}
.value__icon svg { width: 28px; height: 28px; }

/* ----------- PROJECT GALLERY ----------- */
.project-gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.project-gallery__item {
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--bg-alt);
}
.project-gallery__item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.project-gallery__item:hover img { transform: scale(1.05); }
.project-gallery__item--lg { grid-column: span 2; grid-row: span 2; aspect-ratio: 4/3; }

.project-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  background: var(--bg-alt);
  padding: 32px;
  border-radius: var(--radius);
  margin: 40px 0;
}
.project-meta__item strong {
  display: block;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.project-meta__item span {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 18px;
  color: var(--primary);
}

.uar-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.uar-card {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  border-top: 4px solid var(--accent);
}
.uar-card h4 { margin-bottom: 10px; font-size: 16px; color: var(--accent); text-transform: uppercase; letter-spacing: 1px; }
.uar-card p { font-size: 15px; margin: 0; }

/* ----------- ARTICLE / TIP DETAIL ----------- */
.article {
  max-width: 760px;
  margin: 0 auto;
}
.article__lead {
  font-size: 19px;
  line-height: 1.7;
  color: var(--text);
  margin-bottom: 32px;
}
.article h2 { margin: 40px 0 18px; font-size: 28px; }
.article h3 { margin: 32px 0 12px; font-size: 22px; }
.article p { font-size: 16px; line-height: 1.75; margin-bottom: 18px; }
.article ul { margin-bottom: 20px; padding-left: 24px; }
.article ul li { list-style: disc; margin-bottom: 8px; color: var(--text-soft); }
.article__img { margin: 36px 0; border-radius: var(--radius); overflow: hidden; }
.article__img img { width: 100%; }
.article__quote {
  border-left: 4px solid var(--accent);
  padding: 12px 0 12px 24px;
  font-size: 19px;
  font-style: italic;
  color: var(--primary);
  margin: 32px 0;
}

/* ----------- ANIMATIES (IntersectionObserver) ----------- */
.fade-x-left { opacity: 0; transform: translateX(-80px); transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }
.fade-x-right { opacity: 0; transform: translateX(80px); transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }
.fade-up { opacity: 0; transform: translateY(40px) scale(0.96); transition: opacity var(--duration) var(--ease), transform var(--duration) var(--ease); }
.fade-x-left.in-view, .fade-x-right.in-view, .fade-up.in-view { opacity: 1; transform: translateX(0) translateY(0) scale(1); }
.stagger > * { transition-delay: 0ms; }
.stagger.in-view > *:nth-child(1) { transition-delay: 0ms; }
.stagger.in-view > *:nth-child(2) { transition-delay: 220ms; }
.stagger.in-view > *:nth-child(3) { transition-delay: 440ms; }
.stagger.in-view > *:nth-child(4) { transition-delay: 660ms; }
.stagger.in-view > *:nth-child(5) { transition-delay: 880ms; }
.stagger.in-view > *:nth-child(6) { transition-delay: 1100ms; }

/* ============ TABLET ============ */
@media (max-width: 1024px) {
  .section { padding: 72px 0; }
  .nav__menu { display: none; }
  .nav__hamburger { display: flex; }
  .nav__cta .btn { padding: 10px 18px; font-size: 13px; }
  .nav__phone { display: none; }
  .why-grid, .services-grid, .projects-grid, .tips-grid, .reviews-grid { grid-template-columns: repeat(2, 1fr); }
  .process { grid-template-columns: repeat(5, 1fr); gap: 8px; }
  .process__num { width: 60px; height: 60px; font-size: 22px; }
  .process::before { top: 30px; }
  .intro__grid, .quote, .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .quote { padding: 40px; }
  .footer__grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .content-cols { grid-template-columns: 1fr; gap: 32px; }
  .content-cols--reverse .content-cols__img { order: 0; }
  .values-grid, .project-gallery, .project-meta, .uar-grid { grid-template-columns: repeat(2, 1fr); }
  h1 { font-size: 48px; }
  h2 { font-size: 36px; }
}

/* ============ MOBIEL ============ */
@media (max-width: 768px) {
  .section { padding: 48px 0; }
  .container { padding: 0 16px; }
  .nav__inner { padding: 0 16px; }
  .nav__logo img { height: 32px; }
  .nav.scrolled .nav__logo img { height: 30px; }
  .nav__cta .btn { display: none; }

  .hero { min-height: 560px; }
  .hero h1 { font-size: 36px; }
  .hero__subtitle { font-size: 16px; margin-bottom: 28px; }
  .hero__ctas { flex-direction: column; align-items: stretch; }
  .hero__ctas .btn { width: 100%; }

  .why-grid, .services-grid, .projects-grid, .tips-grid, .reviews-grid,
  .values-grid, .project-gallery, .project-meta, .uar-grid {
    grid-template-columns: 1fr;
  }

  .process { grid-template-columns: 1fr; gap: 28px; }
  .process::before { display: none; }
  .process__step { display: flex; gap: 18px; text-align: left; align-items: flex-start; }
  .process__num { margin: 0; width: 56px; height: 56px; font-size: 20px; flex-shrink: 0; }

  .quote { padding: 28px; }
  .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; gap: 32px; }
  .footer { padding: 56px 0 0; }

  .ticker__item { font-size: 18px; gap: 36px; }
  .ticker__track { gap: 36px; }

  .subhero { min-height: 320px; }
  .subhero h1 { font-size: 32px; }

  .cta-band { padding: 56px 0; }
  .cta-band__buttons { flex-direction: column; align-items: stretch; width: 100%; }

  .lang-switch { bottom: 18px; left: 16px; }
  .lang-switch__current { padding: 8px 12px; font-size: 12px; }
  .lang-switch__flag { width: 20px; height: 20px; font-size: 13px; }
  .wa-widget { bottom: 18px; right: 16px; }
  .wa-widget__button { width: 56px; height: 56px; }
  .wa-widget__button svg { width: 28px; height: 28px; }
  .wa-widget__tooltip { display: none; }

  /* Mobile menu */
  .nav__menu {
    display: flex; flex-direction: column;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: var(--white);
    padding: 24px 16px;
    border-top: 1px solid var(--border-soft);
    box-shadow: var(--shadow);
    transform: translateY(-110%);
    transition: transform 0.4s var(--ease);
    align-items: stretch;
    gap: 4px;
    height: calc(100vh - 64px);
    overflow-y: auto;
  }
  .nav__menu.open { transform: translateY(0); }
  .nav__menu a {
    padding: 14px 16px;
    font-size: 16px;
    border-bottom: 1px solid var(--border-soft);
    border-radius: 0;
  }
  .nav__menu .btn {
    margin-top: 16px;
    width: 100%;
  }
}

/* RTL */
[dir="rtl"] .hero__eyebrow { transform: translateX(80px); }
[dir="rtl"] .hero h1, [dir="rtl"] .hero__subtitle, [dir="rtl"] .hero__ctas { transform: translateX(80px); }
[dir="rtl"] .hero__eyebrow.animated, [dir="rtl"] .hero h1.animated, [dir="rtl"] .hero__subtitle.animated, [dir="rtl"] .hero__ctas.animated { transform: translateX(0); }
[dir="rtl"] .timeline { padding-left: 0; padding-right: 32px; border-left: 0; border-right: 2px solid var(--accent); }
[dir="rtl"] .timeline__item::before { left: auto; right: -41px; }
[dir="rtl"] .lang-switch { left: auto; right: 24px; }
[dir="rtl"] .wa-widget { right: auto; left: 24px; }
[dir="rtl"] .wa-widget__tooltip { right: auto; left: 75px; }
[dir="rtl"] .wa-widget__tooltip::after { right: auto; left: -6px; border-left-color: transparent; border-right-color: var(--primary); }


/* ----------- INTRO SPLIT (Over Koppens) — clean ----------- */
.intro-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.intro-split__media {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4 / 3;
  box-shadow: var(--shadow);
}
.intro-split__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}
.intro-split__text .eyebrow { margin-bottom: 16px; }
.intro-split__text h2 { margin-bottom: 24px; }
.intro-split__text p {
  font-size: 17px;
  line-height: 1.7;
  margin-bottom: 18px;
  color: var(--text-soft);
}
.intro-split__text p:last-of-type { margin-bottom: 32px; }

@media (max-width: 1024px) {
  .intro-split { grid-template-columns: 1fr; gap: 40px; }
}
@media (max-width: 768px) {
  .intro-split { gap: 28px; }
}