/* ===================================================
   ERFGO3D – Components: knoppen, kaarten, nav
   =================================================== */

/* ---- c-btn ---- */
.c-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--s-2);
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: var(--t-small);
  text-decoration: none;
  border-radius: var(--r-pill);
  padding: var(--s-2) var(--s-4);
  border: 1px solid currentColor;
  cursor: pointer;
  background: transparent;
  transition:
    background-color var(--dur-short) var(--ease-soft),
    color var(--dur-short) var(--ease-soft),
    border-color var(--dur-short) var(--ease-soft);
}

.c-btn--light {
  color: var(--color-brand-light);
  border-color: var(--color-brand-light);
}

.c-btn--light:hover {
  background-color: var(--color-brand-light);
  color: var(--color-ink-deep);
}

.c-btn--brand {
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.c-btn--brand:hover {
  background-color: var(--color-brand);
  color: var(--color-white);
}

.c-btn__arrow {
  display: inline-block;
  transition: transform var(--dur-short) var(--ease-soft);
}

.c-btn:hover .c-btn__arrow {
  transform: translateX(4px);
}

/* ---- c-card (diensten) ---- */
.c-card {
  background: var(--color-paper);
  border: 1px solid var(--color-line);
  padding: var(--s-5);
  border-radius: var(--r-sm);
  position: relative;
  display: flex;
  flex-direction: column;
  transition:
    transform var(--dur-short) var(--ease-soft),
    border-color var(--dur-short) var(--ease-soft);
}

.c-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-brand);
}

.c-card:hover .c-card__arrow {
  transform: translateX(4px);
}

.c-card__num {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-tiny);
  color: var(--color-brand);
  margin-bottom: var(--s-3);
  display: block;
}

.c-card__title {
  font-size: var(--t-h3);
  color: var(--color-ink-deep);
  margin-bottom: var(--s-3);
  flex: 0 0 auto;
  min-height: calc(var(--t-h3) * 2 * 1.15);
  line-height: 1.15;
}

.c-card__body {
  font-size: var(--t-body);
  color: var(--color-ink);
  line-height: 1.55;
  flex: 1;
  margin-bottom: var(--s-4);
}

.c-card__arrow {
  width: 24px;
  height: 24px;
  color: var(--color-brand);
  align-self: flex-end;
  transition: transform var(--dur-short) var(--ease-soft);
}

/* ---- c-nav ---- */
.c-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--outer-padding);
  border-bottom: 1px solid transparent;
  transition:
    background-color var(--dur-medium) var(--ease-soft),
    border-color var(--dur-medium) var(--ease-soft),
    backdrop-filter var(--dur-medium) var(--ease-soft);
}

.c-nav--scrolled {
  background-color: rgba(245, 242, 236, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-line);
}

.c-nav--dark-section .c-nav__logo-color { display: none; }
.c-nav--dark-section .c-nav__logo-white { display: block; }
.c-nav:not(.c-nav--dark-section) .c-nav__logo-color { display: block; }
.c-nav:not(.c-nav--dark-section) .c-nav__logo-white { display: none; }

/* Wanneer nav scrolled is én over dark section: iets andere achtergrond */
.c-nav--scrolled.c-nav--dark-section {
  background-color: rgba(1, 58, 58, 0.85);
}

.c-nav__logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  width: 140px;
  flex-shrink: 0;
}

.c-nav__logo-link svg,
.c-nav__logo-link img {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- Hamburger ---- */
.c-hamburger {
  width: 44px;
  height: 44px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  flex-shrink: 0;
}

.c-hamburger__line {
  display: block;
  width: 24px;
  height: 1.5px;
  background-color: currentColor;
  transition:
    width var(--dur-short) var(--ease-soft),
    transform var(--dur-short) var(--ease-soft),
    opacity var(--dur-short) var(--ease-soft);
  transform-origin: center;
}

.c-nav--dark-section .c-hamburger,
.c-nav--dark-section .c-hamburger__line {
  color: var(--color-white);
}

.c-hamburger:hover .c-hamburger__line:first-child {
  width: 18px;
}

.c-hamburger:hover .c-hamburger__line:last-child {
  width: 18px;
}

/* Hamburger active state (overlay open) */
.c-hamburger[aria-expanded="true"] .c-hamburger__line:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}

.c-hamburger[aria-expanded="true"] .c-hamburger__line:nth-child(2) {
  opacity: 0;
  width: 0;
}

.c-hamburger[aria-expanded="true"] .c-hamburger__line:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ---- nav backdrop ---- */
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 101;
  background: rgba(0, 10, 10, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 350ms var(--ease-out);
}

.nav-backdrop.is-open {
  opacity: 1;
  pointer-events: all;
}

/* ---- nav drawer ---- */
.nav-overlay {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 100vw);
  z-index: 102;
  background: var(--color-paper);
  display: flex;
  flex-direction: column;
  padding: var(--s-5) var(--s-5) var(--s-6);
  transform: translateX(100%);
  transition: transform 400ms var(--ease-out);
  overflow-y: auto;
  box-shadow: -4px 0 40px rgba(0, 0, 0, 0.18);
}

.nav-overlay.is-open {
  transform: translateX(0);
}

/* Close button */
.nav-overlay__close {
  align-self: flex-end;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--s-1);
  color: var(--color-ink-deep);
  line-height: 0;
  margin-bottom: var(--s-5);
  transition: color var(--dur-short) var(--ease-soft);
}

.nav-overlay__close:hover {
  color: var(--color-brand);
}

.nav-overlay__close svg {
  width: 22px;
  height: 22px;
}

/* Logo */
.nav-overlay__header {
  margin-bottom: var(--s-6);
}

.nav-overlay__logo-link {
  display: inline-block;
  line-height: 0;
}

.nav-overlay__logo-img {
  height: 26px;
  width: auto;
  display: block;
}

/* Nav links */
.nav-overlay__nav {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
  margin-bottom: var(--s-6);
}

.nav-overlay__link {
  text-decoration: none;
}

.nav-overlay__pagelink {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: var(--t-body);
  color: var(--color-ink);
  text-decoration: none;
  transition: color var(--dur-short) var(--ease-soft);
}

.nav-overlay__pagelink:hover {
  color: var(--color-brand);
}

/* Photo placeholder */
.nav-overlay__photo {
  flex: 1;
  margin-bottom: var(--s-6);
  min-height: 180px;
  overflow: hidden;
  border-radius: var(--r-sm);
}

.nav-overlay__photo-img {
  width: 100%;
  height: 100%;
  min-height: 180px;
  max-height: 280px;
  object-fit: cover;
  object-position: center top;
  display: block;
  border-radius: var(--r-sm);
}

/* Contact */
.nav-overlay__channels {
  display: flex;
  flex-direction: column;
  gap: var(--s-1);
}

.nav-overlay__channel {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-small);
  color: var(--color-ink);
  text-decoration: none;
  transition: color var(--dur-short) var(--ease-soft);
}

.nav-overlay__channel:hover {
  color: var(--color-ink-deep);
}

/* ---- Sectie-lay-out helpers ---- */
.section-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--outer-padding);
}

.section--light {
  background-color: var(--color-paper);
  color: var(--color-ink);
}

.section--light-soft {
  background-color: var(--color-paper-soft);
  color: var(--color-ink);
}

.section--dark {
  background-image: url('/assets/achtergrond.svg'), url('/assets/Erfgo3d-Background.png');
  background-size: cover;
  background-position: center;
  background-color: var(--color-brand-deep);
  color: var(--color-dark-ink);
}

/* ---- Sectie-labels (Space Mono, bovenaan elk blok) ---- */
.c-label {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-tiny);
  color: var(--color-brand);
  display: block;
  margin-bottom: var(--s-3);
}

.c-label--light {
  color: var(--color-brand-light);
}

/* ---- Scheidingslijn ---- */
.c-divider {
  width: 100%;
  height: 1px;
  background-color: var(--color-line);
  border: none;
  margin: 0;
}

.section--dark .c-divider {
  background-color: var(--color-dark-line);
}

/* ---- Pull quote ---- */
.c-pull-quote {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: var(--t-lead);
  color: var(--color-ink);
  max-width: 880px;
  margin: 0 auto;
  line-height: 1.45;
  text-wrap: balance;
}

.c-card__body {
  text-wrap: pretty;
}

/* ---- Scroll indicator (hero) ---- */
.c-scroll-indicator {
  position: absolute;
  bottom: var(--s-6);
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 40px;
  background-color: rgba(255, 255, 255, 0.5);
  animation: pulse-scroll 2s var(--ease-soft) infinite;
}

@keyframes pulse-scroll {
  0%, 100% { opacity: 0.3; transform: translateX(-50%) scaleY(0.8); }
  50% { opacity: 1; transform: translateX(-50%) scaleY(1); }
}

@media (prefers-reduced-motion: reduce) {
  .c-scroll-indicator {
    animation: none;
    opacity: 0.5;
  }
}

/* ---- Portret placeholder ---- */
.c-portrait {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--r-sm);
  display: block;
}

/* ---- 3D visual placeholder ---- */
.c-sketchfab-embed {
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-sm);
  overflow: hidden;
  background: #0a0a0a;
}

.c-sketchfab-embed iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

@media (max-width: 480px) {
  .c-sketchfab-embed {
    aspect-ratio: 1 / 1;
  }
  .nav-overlay__link {
    font-size: var(--t-h3);
  }
}

/* ---- Ghost-tekst (diensten achtergrond) ---- */
.c-ghost-text {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: var(--t-display);
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  text-stroke: 1px var(--color-line);
  white-space: nowrap;
  pointer-events: none;
  user-select: none;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  z-index: 0;
  opacity: 0;
  transition: opacity 800ms var(--ease-out);
}

.c-ghost-text.is-visible {
  opacity: 1;
}

@media (max-width: 480px) {
  .c-ghost-text {
    display: none;
  }
}

/* ---- Driehoek-markering (manifest statements) ---- */
.c-triangle {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 8px solid var(--color-brand);
  border-top: 5px solid transparent;
  border-bottom: 5px solid transparent;
  flex-shrink: 0;
  margin-top: 0.35em;
  margin-right: var(--s-3);
}

/* ---- Tickertape ---- */
.c-ticker {
  overflow: hidden;
  white-space: nowrap;
  padding: var(--s-5) 0;
  position: relative;
}

.c-ticker__track {
  display: inline-flex;
  animation: ticker 30s linear infinite;
  white-space: nowrap;
}

.c-ticker__item {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: var(--t-display);
  color: var(--color-white);
  display: inline-block;
  margin-right: var(--s-6);
  white-space: nowrap;
}

.c-ticker__item--outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--color-white);
  text-stroke: 1.5px var(--color-white);
}

@keyframes ticker {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce) {
  .c-ticker__track {
    animation: none;
  }
}

/* ---- Contact formulier ---- */
.c-contact-form {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.c-contact-form[hidden] {
  display: none;
}

.c-contact-form__label {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-small);
  color: var(--color-white);
  display: block;
  margin-bottom: var(--s-2);
}

.c-contact-form__field {
  display: flex;
  flex-direction: column;
}

.c-contact-form__row {
  display: flex;
  align-items: flex-start;
  border-bottom: 1px solid var(--color-dark-line);
  gap: var(--s-3);
}

.c-contact-form__input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: 'Space Grotesk', sans-serif;
  font-size: var(--t-body);
  color: var(--color-white);
  padding: var(--s-3) 0;
  width: 100%;
}

.c-contact-form__textarea {
  resize: none;
  line-height: 1.55;
}

.c-contact-form__input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.c-contact-form__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  margin-top: var(--s-2);
}

.c-contact-form__submit {
  background: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  cursor: pointer;
  width: 48px;
  height: 48px;
  color: var(--color-white);
  flex-shrink: 0;
  transition: border-color var(--dur-short) var(--ease-soft), color var(--dur-short) var(--ease-soft), background var(--dur-short) var(--ease-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.c-contact-form__submit:hover {
  border-color: var(--color-brand-light);
  color: var(--color-brand-light);
  background: rgba(108, 235, 131, 0.08);
}

.c-contact-form__sub {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-tiny);
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.6;
}

/* ---- Contact bevestiging ---- */
.c-contact-confirm {
  display: none;
  flex-direction: column;
  gap: var(--s-3);
  padding: var(--s-5) 0;
}

.c-contact-confirm:not([hidden]) {
  display: flex;
  animation: confirm-fade-in 0.5s var(--ease-soft) both;
}

@keyframes confirm-fade-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.c-contact-confirm__icon {
  color: var(--color-brand-mid);
}

.c-contact-confirm__title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 600;
  color: var(--color-white);
  line-height: 1.15;
  margin: 0;
}

.c-contact-confirm__body {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-small);
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.65;
  margin: 0;
}

/* ---- Contact kanalen ---- */
.c-channels {
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
}

.c-channels__item {
  display: flex;
  gap: var(--s-4);
  align-items: baseline;
}

.c-channels__label {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-small);
  color: rgba(255, 255, 255, 0.6);
  min-width: 80px;
  flex-shrink: 0;
}

.c-channels__value {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: var(--t-body);
  color: var(--color-white);
  text-decoration: none;
  transition: color var(--dur-short) var(--ease-soft);
}

.c-channels__value:hover {
  color: var(--color-brand-light);
}

/* ---- USP blokken ---- */
.c-usp {
  padding: var(--s-5) 0;
  border-bottom: 1px solid var(--color-line);
}

.c-usp:first-child {
  border-top: 1px solid var(--color-line);
}

.c-usp__num {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-h3);
  color: var(--color-brand);
  font-weight: 700;
  display: block;
  margin-bottom: var(--s-2);
  letter-spacing: -0.01em;
}

.c-usp__title {
  font-size: var(--t-h3);
  color: var(--color-ink-deep);
  margin-bottom: var(--s-3);
}

.c-usp__body {
  font-size: var(--t-body);
  color: var(--color-ink);
  line-height: 1.55;
}

/* ---- Aanpak stappen ---- */
.c-step {
  padding: var(--s-5);
}

.c-step__num {
  font-family: 'Space Mono', monospace;
  font-size: var(--t-display);
  font-weight: 700;
  color: transparent;
  -webkit-text-stroke: 1px var(--color-line);
  text-stroke: 1px var(--color-line);
  display: block;
  margin-bottom: var(--s-3);
  line-height: 1;
}

.c-step__title {
  font-size: var(--t-h3);
  color: var(--color-ink-deep);
  margin-bottom: var(--s-3);
}

.c-step__body {
  font-size: var(--t-body);
  color: var(--color-ink);
  line-height: 1.55;
}

@media (max-width: 768px) {
  .c-step {
    padding: var(--s-4) 0;
    border-bottom: 1px solid var(--color-line);
  }
  .c-step:last-child {
    border-bottom: none;
  }
  .c-step__num {
    font-size: var(--t-h1);
  }
}