/* ==========================================================
   RVC Techniek - huisstijl: zwart & goud
   ========================================================== */
:root {
  --black: #000000;
  --black-2: #0b0b0b;
  --black-3: #141414;
  --line: #262626;
  --text: #e9e6df;
  --muted: #a39f95;
  --gold: #d4a52a;
  --gold-light: #fdf58c;
  --gold-dark: #b8860b;
  --gold-gradient: linear-gradient(100deg, #b8860b 0%, #e6b93a 30%, #fdf58c 50%, #e6b93a 70%, #b8860b 100%);
  --radius: 6px;
  --shadow: 0 20px 50px rgba(0, 0, 0, .6);
  --header-h: 76px;
}

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

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

body {
  font-family: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--black);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

.container { width: min(1200px, 100% - 40px); margin-inline: auto; }

h1, h2, h3, h4 { line-height: 1.2; color: #fff; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); font-weight: 800; letter-spacing: -.5px; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 1rem; }
h3 { font-size: 1.15rem; margin-bottom: .5rem; }

.gold-text {
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: .8rem;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: .9rem 1.8rem;
  font: inherit;
  font-weight: 600;
  font-size: .95rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .2s, box-shadow .2s, background-position .5s, color .2s, border-color .2s;
}
.btn--gold {
  background: var(--gold-gradient);
  background-size: 200% 100%;
  color: #000;
}
.btn--gold:hover {
  background-position: 100% 0;
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(212, 165, 42, .35);
}
.btn--outline { border-color: var(--gold); color: var(--gold); }
.btn--outline:hover { background: var(--gold); color: #000; }
.btn--dark { background: #000; color: var(--gold-light); }
.btn--dark:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0, 0, 0, .4); }
.btn--sm { padding: .55rem 1.2rem; font-size: .85rem; }
.btn--full { width: 100%; }

/* ---------- Header ---------- */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background .3s, border-color .3s;
  border-bottom: 1px solid transparent;
}
.header.scrolled {
  background: rgba(0, 0, 0, .92);
  backdrop-filter: blur(10px);
  border-color: var(--line);
}
.nav { display: flex; align-items: center; justify-content: space-between; }
.nav__logo { display: flex; align-items: center; gap: .7rem; font-size: 1.05rem; letter-spacing: 2px; color: #fff; }
.nav__logo img { width: 54px; }
.nav__logo strong { color: var(--gold); font-weight: 700; }

.nav__menu { display: flex; align-items: center; gap: 2rem; }
.nav__menu a:not(.btn) {
  font-size: .92rem;
  font-weight: 500;
  position: relative;
  transition: color .2s;
}
.nav__menu a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width .25s;
}
.nav__menu a:not(.btn):hover { color: var(--gold); }
.nav__menu a:not(.btn):hover::after { width: 100%; }

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav__toggle span { width: 26px; height: 2px; background: var(--gold); transition: transform .3s, opacity .3s; }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 40px) 0 80px;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 75% 40%, rgba(212, 165, 42, .14), transparent 55%),
    var(--black);
}
.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(212, 165, 42, .06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212, 165, 42, .06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%);
}
.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.hero__lead { color: var(--muted); font-size: 1.08rem; margin: 1.5rem 0 2rem; max-width: 540px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 1rem; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 1.5rem; margin-top: 2.5rem; }
.hero__badges li {
  font-size: .85rem;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: .5rem;
}
.hero__badges li::before {
  content: "";
  width: 8px; height: 8px;
  background: var(--gold);
  transform: skewX(-20deg);
}
.hero__logo img {
  width: 100%;
  filter: drop-shadow(0 0 40px rgba(212, 165, 42, .25));
  animation: float 6s ease-in-out infinite;
}
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ---------- Stats ---------- */
.stats { border-block: 1px solid var(--line); background: var(--black-2); }
.stats__grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 2.5rem 1rem; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat__num, .stat__plus {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  background: var(--gold-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stat p { color: var(--muted); font-size: .9rem; }

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section--dark { background: var(--black-2); border-block: 1px solid var(--line); }
.section__head { text-align: center; max-width: 680px; margin: 0 auto 4rem; }
.section__head p:not(.eyebrow) { color: var(--muted); }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.card {
  position: relative;
  padding: 2rem 1.6rem;
  background: var(--black-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, border-color .3s, box-shadow .3s;
}
.card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 3px;
  background: var(--gold-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(212, 165, 42, .5); box-shadow: var(--shadow); }
.card:hover::before { transform: scaleX(1); }
.card p { color: var(--muted); font-size: .92rem; }
.card__icon {
  width: 54px; height: 54px;
  display: grid;
  place-items: center;
  margin-bottom: 1.3rem;
  border: 1px solid rgba(212, 165, 42, .4);
  border-radius: var(--radius);
  background: rgba(212, 165, 42, .06);
}
.card__icon svg,
.contact-list svg {
  width: 26px; height: 26px;
  fill: none;
  stroke: var(--gold);
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ---------- Split (over ons / contact) ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: center; }
.split > * { min-width: 0; }
.split__text p:not(.eyebrow) { color: var(--muted); margin-bottom: 1rem; }
.frame {
  position: relative;
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  border: 2px solid var(--gold);
  background:
    radial-gradient(circle at center, rgba(212, 165, 42, .12), transparent 70%),
    #000;
}
.frame::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1px solid rgba(212, 165, 42, .35);
}
.frame img { width: 60%; }

.checklist { margin-top: 1.5rem; display: grid; gap: .8rem; }
.checklist li { display: flex; align-items: center; gap: .8rem; }
.checklist li::before {
  content: "";
  flex: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background:
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23000' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 12 4 4 8-8'/%3E%3C/svg%3E") center / 14px no-repeat,
    var(--gold-gradient);
}

/* ---------- Steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; counter-reset: step; }
.step {
  position: relative;
  padding-top: 1.5rem;
  border-top: 2px solid var(--line);
}
.step::before {
  content: "";
  position: absolute;
  top: -2px; left: 0;
  width: 60px; height: 2px;
  background: var(--gold);
}
.step__num {
  display: block;
  font-size: 3rem;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 1rem;
  color: transparent;
  -webkit-text-stroke: 1px var(--gold);
}
.step p { color: var(--muted); font-size: .92rem; }

/* ---------- Projects ---------- */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.project {
  background: var(--black-3);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform .3s, border-color .3s;
}
.project:hover { transform: translateY(-6px); border-color: rgba(212, 165, 42, .5); }
.project__img {
  aspect-ratio: 16 / 10;
  position: relative;
  background-color: #0f0f0f;
  background-image:
    linear-gradient(135deg, rgba(212, 165, 42, .25), transparent 60%),
    repeating-linear-gradient(90deg, transparent 0 39px, rgba(212, 165, 42, .08) 39px 40px),
    repeating-linear-gradient(0deg, transparent 0 39px, rgba(212, 165, 42, .08) 39px 40px);
}
.project__img::after {
  content: "";
  position: absolute;
  inset: 0;
  background: url("../assets/img/logo-r.png") center / 30% no-repeat;
  opacity: .5;
}
/* Vervang deze achtergronden door echte projectfoto's, bijv.:
   .project__img--1 { background: url("../assets/img/project-1.jpg") center / cover; } */
.project__img--2 { background-image: linear-gradient(200deg, rgba(212, 165, 42, .25), transparent 60%), repeating-linear-gradient(45deg, transparent 0 29px, rgba(212, 165, 42, .08) 29px 30px); }
.project__img--3 { background-image: linear-gradient(20deg, rgba(212, 165, 42, .25), transparent 60%), repeating-linear-gradient(-45deg, transparent 0 29px, rgba(212, 165, 42, .08) 29px 30px); }
.project__body { padding: 1.5rem; }
.project__body p { color: var(--muted); font-size: .92rem; }
.tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid rgba(212, 165, 42, .4);
  padding: .15rem .6rem;
  border-radius: 3px;
  margin-bottom: .8rem;
}

/* ---------- CTA ---------- */
.cta {
  background: var(--gold-gradient);
  color: #000;
  padding: 70px 0;
  text-align: center;
}
.cta h2 { color: #000; margin-bottom: .4rem; }
.cta p { margin-bottom: 1.6rem; font-weight: 500; }

/* ---------- Contact ---------- */
.split--contact { align-items: start; }
.split--contact > div > p:not(.eyebrow) { color: var(--muted); }
.contact-list { margin-top: 2rem; display: grid; gap: 1.2rem; }
.contact-list li { display: flex; align-items: center; gap: 1rem; }
.contact-list svg { width: 22px; height: 22px; flex: none; }
.contact-list a:hover { color: var(--gold); }

.form {
  display: grid;
  gap: 1.1rem;
  padding: 2.2rem;
  background: var(--black-3);
  border: 1px solid var(--line);
  border-top: 3px solid var(--gold);
  border-radius: var(--radius);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form label { display: grid; gap: .4rem; font-size: .85rem; font-weight: 500; color: var(--muted); }
.form input,
.form select,
.form textarea {
  font: inherit;
  font-size: .95rem;
  color: var(--text);
  background: #000;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: .8rem 1rem;
  width: 100%;
  min-width: 0;
  transition: border-color .2s, box-shadow .2s;
}
.form textarea { resize: vertical; }
.form input:focus,
.form select:focus,
.form textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(212, 165, 42, .2);
}
.form .invalid { border-color: #e05252; }
.form__status { font-size: .9rem; min-height: 1.4em; }
.form__status.ok { color: var(--gold); }
.form__status.error { color: #e05252; }

/* ---------- Footer ---------- */
.footer { background: var(--black); border-top: 1px solid var(--line); padding-top: 70px; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 3rem; }
.footer__logo { width: 220px; }
.footer h4 {
  font-size: .85rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}
.footer ul { display: grid; gap: .6rem; }
.footer li { color: var(--muted); font-size: .92rem; }
.footer a:hover { color: var(--gold); }
.footer__bottom {
  margin-top: 50px;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  font-size: .85rem;
  color: var(--muted);
  text-align: center;
}

/* ---------- Animaties ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__logo img { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .nav__toggle { display: flex; }
  .nav__menu {
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 20px 2rem;
    background: rgba(0, 0, 0, .97);
    border-bottom: 1px solid var(--line);
    transform: translateY(-120%);
    visibility: hidden;
    transition: transform .35s ease, visibility .35s;
  }
  .nav__menu.open { transform: none; visibility: visible; }
  .nav__menu a:not(.btn) { padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .nav__menu a:not(.btn)::after { display: none; }
  .nav__menu .btn { margin-top: 1.2rem; }
  .header { background: rgba(0, 0, 0, .92); }

  .hero__inner,
  .split { grid-template-columns: 1fr; gap: 3rem; }
  .hero { text-align: center; min-height: auto; }
  .hero__logo { order: -1; max-width: 420px; margin-inline: auto; }
  .hero__lead { margin-inline: auto; }
  .hero__actions,
  .hero__badges { justify-content: center; }

  .stats__grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }

  .projects { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
}

@media (max-width: 560px) {
  .container { width: calc(100% - 32px); }
  .cards,
  .steps,
  .form__row,
  .footer__grid { grid-template-columns: 1fr; }
  .form { padding: 1.5rem; }
  .hero__actions .btn { width: 100%; }
  .nav__logo span { font-size: .9rem; }
}