:root {
  --orange: #ff9a00;
  --black: #121212;
  --white: #fefefe;
  --paper: #fffdf8;
  --line: rgba(0, 47, 167, 0.16);
  --shadow: 0 20px 60px rgba(18, 18, 18, 0.1);
  --radius: 0px;
  --max-width: 1180px;
  --header-height: 78px;
}

/* FONT */
@font-face {
  font-family: 'Bulderbos Display';
  src: url('assets/fonts/bulderbos-display.woff2') format('woff2');
  font-display: swap;
}

/* RESET */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Open Sans', sans-serif;
  color: var(--black);
  background: linear-gradient(180deg, #fffefb 0%, #fff8eb 100%);
}

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

button {
  font: inherit;
}

/* ALGEMENE LINKS */
a {
  color: var(--orange);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition:
    color .2s ease,
    text-decoration-color .2s ease,
    background-color .2s ease,
    border-color .2s ease,
    transform .2s ease;
}

a:hover {
  color: var(--black);
  text-decoration-color: var(--orange);
}

a:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

a:visited {
  color: #b85f00;
}

/* LINKS DIE GEEN ONDERSTREPING MOETEN HEBBEN */
.brand,
.menu-panel__inner a,
.button,
.text-link,
.contact-links a {
  text-decoration: none;
}

/* LAYOUT */
.container {
  width: min(calc(100% - 2rem), var(--max-width));
  margin: 0 auto;
}

.section {
  padding: 5rem 0;
  scroll-margin-top: calc(var(--header-height) + 18px);
}

/* HEADER */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: var(--header-height);
  background: rgba(254, 254, 254, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(18, 18, 18, 0.08);
}

.header-inner {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand,
.hero-copy h1,
.section-head h2,
.content-block h2,
.program-day__content h3,
.agenda-content h3 {
  font-family: 'Bulderbos Display', 'Open Sans', sans-serif;
}

.brand {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  font-weight: 800;
  color: var(--black);
}

/* MENU BUTTON */
.menu-toggle {
  width: 52px;
  height: 52px;
  border-radius: 0;
  border: 1px solid rgba(18, 18, 18, 0.1);
  background: #fff;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  padding: 0 13px;
  cursor: pointer;
  box-shadow: 0 8px 22px rgba(18, 18, 18, 0.08);
}

.menu-toggle span {
  width: 100%;
  height: 2px;
  background: var(--black);
  transition: transform .25s ease, opacity .25s ease;
}

.menu-open .menu-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-open .menu-toggle span:nth-child(2) {
  opacity: 0;
}

.menu-open .menu-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* MENU PANEL */
.menu-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(90vw, 380px);
  height: 100dvh;
  background: var(--white);
  z-index: 60;
  transform: translateX(100%);
  transition: transform .35s ease;
  box-shadow: -20px 0 60px rgba(18, 18, 18, 0.12);
}

.menu-open .menu-panel {
  transform: translateX(0);
}

.menu-panel__inner {
  padding: 7rem 2rem 2rem;
  display: grid;
  gap: 1rem;
}

.menu-panel__inner a {
  padding: .95rem 1rem;
  border-radius: 0;
  background: rgba(255, 154, 0, 0.12);
  color: var(--black);
  font-weight: 700;
}

.menu-panel__inner a:hover {
  background: rgba(255, 154, 0, 0.24);
  color: var(--black);
}

.menu-panel__inner a.active {
  background: var(--black);
  color: var(--white);
}

.menu-kicker {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  color: rgba(18, 18, 18, 0.65);
}

.menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(18, 18, 18, 0.28);
  opacity: 0;
  pointer-events: none;
  transition: opacity .25s ease;
  z-index: 55;
}

.menu-open .menu-backdrop {
  opacity: 1;
  pointer-events: auto;
}

/* HERO */
.hero {
  min-height: calc(100svh - var(--header-height));
  display: grid;
  align-items: center;
}

.hero-grid,
.split-layout {
  display: grid;
  grid-template-columns: 1.04fr .96fr;
  gap: 2rem;
  align-items: center;
}

.hero-copy h1 {
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: .95;
  margin: 0;
}

.lead {
  font-size: clamp(1.08rem, 2vw, 1.3rem);
  max-width: 36rem;
  line-height: 1.7;
}

.eyebrow {
  margin: 0 0 1rem;
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: .78rem;
  font-weight: 800;
  color: var(--orange);
}

.hero-links,
.contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: .9rem;
  margin-top: 1.5rem;
}

/* BUTTONS */
.button,
.text-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: .85rem 1.2rem;
  border-radius: 0;
}

.button {
  background: var(--black);
  color: var(--white);
  font-weight: 700;
  border: 1px solid var(--black);
}

.button:hover {
  transform: translateY(-2px);
  background: #2b2b2b;
  color: var(--white);
}

.text-link {
  background: rgba(255, 154, 0, 0.12);
  color: var(--black);
  font-weight: 700;
  border: 1px solid rgba(18, 18, 18, 0.08);
}

.text-link:hover {
  transform: translateY(-2px);
  background: rgba(255, 154, 0, 0.22);
  color: var(--black);
}

/* SHAPES / BEELD */
.shape-stack {
  position: relative;
  min-height: 530px;
}

.shape,
.arch-card,
.circle-card,
.program-day,
.info-card {
  box-shadow: var(--shadow);
  border: 1px solid rgba(18, 18, 18, 0.08);
}

.shape {
  position: absolute;
  overflow: hidden;
  background: var(--white);
}

.shape img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.shape-arch {
  inset: 0 12% 16% 0;
  border-radius: 220px 220px 0 0;
}

.shape-circle {
  width: 42%;
  aspect-ratio: 1;
  right: 0;
  bottom: 0;
  border-radius: 50%;
}

.image-placeholder {
  background:
    radial-gradient(circle at 20% 20%, rgba(255, 154, 0, 0.34), transparent 28%),
    radial-gradient(circle at 78% 26%, rgba(255, 154, 0, 0.2), transparent 24%),
    radial-gradient(circle at 50% 80%, rgba(18, 18, 18, 0.08), transparent 28%),
    var(--white);
}

.image-placeholder span {
  font-weight: 800;
  max-width: 12ch;
  text-align: center;
}

.arch-card,
.circle-card {
  overflow: hidden;
  background: #fff;
  display: block;
  padding: 0;
}

.arch-card {
  width: 100%;
  aspect-ratio: 3 / 4;
  border-radius: 220px 220px 0 0;
}

.circle-card {
  width: 100%;
  max-width: 320px;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
}

.arch-card img,
.circle-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* CONTENT */
.content-block h2,
.section-head h2 {
  font-size: clamp(2rem, 4.2vw, 3.5rem);
  line-height: 1.02;
  margin: 0 0 1rem;
}

.content-block p,
.section-head p,
.program-day__content p,
.info-card p,
.agenda-content p {
  line-height: 1.7;
}

.section-head {
  max-width: 52rem;
}

.content-block a,
.info-card a,
.agenda-content a,
.clean-list a {
  color: var(--orange);
  font-weight: 700;
}

.content-block a:hover,
.info-card a:hover,
.agenda-content a:hover,
.clean-list a:hover {
  color: var(--black);
}

/* SECTION STYLE */
.warm-section {
  background: linear-gradient(180deg, rgba(255, 154, 0, 0.08) 0%, rgba(255, 154, 0, 0.03) 100%);
}

/* PROGRAMMA */
.program-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}

.program-day {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 1rem;
  align-items: start;
  padding: 1.5rem;
  background: var(--white);
  border-radius: 0;
}

.program-day__icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #d6dbb2;
  padding: 12px;
  flex-shrink: 0;
}

.program-day__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.program-day__content h3 {
  margin: 0 0 .5rem;
  font-size: 1.45rem;
}

.program-day__content p {
  margin: 0;
}

/* INFO CARDS */
.cards-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 2rem;
}

.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.info-card {
  background: var(--white);
  padding: 1.5rem;
}

.info-card h3 {
  margin-top: 0;
  margin-bottom: .8rem;
}

.clean-list {
  margin: 0;
  padding-left: 1.2rem;
  line-height: 1.8;
}

/* AGENDA */
.notebook-section {
  background:
    repeating-linear-gradient(
      to bottom,
      #fffefb 0,
      #fffefb 42px,
      var(--line) 43px,
      #fffefb 44px
    );
}

.agenda-list {
  max-width: 54rem;
  margin-top: 2rem;
}

.agenda-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 1rem;
  padding: 1.1rem 0;
}

.agenda-dot {
  width: 18px;
  height: 18px;
  background: var(--black);
  border-radius: 50%;
  margin-top: .55rem;
}

.agenda-label {
  margin: 0 0 .25rem;
  font-size: .95rem;
  font-weight: 700;
}

.agenda-content h3 {
  margin: 0 0 .25rem;
  font-size: 1.75rem;
}

.agenda-content p {
  margin: 0;
}

/* CONTACT */
.contact-links a {
  padding: .8rem 1rem;
  background: rgba(255, 154, 0, 0.12);
  color: var(--black);
  font-weight: 700;
  border-radius: 0;
  border: 1px solid rgba(18, 18, 18, 0.08);
}

.contact-links a:hover {
  background: rgba(255, 154, 0, 0.22);
  border-color: rgba(18, 18, 18, 0.18);
  color: var(--black);
  transform: translateY(-2px);
}

/* FOOTER */
.site-footer {
  padding: 1.2rem 0 2rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border-top: 1px solid rgba(18, 18, 18, 0.08);
  padding-top: 1rem;
}

.footer-inner p {
  margin: 0;
  font-weight: 700;
}

/* REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.delay-1 { transition-delay: .08s; }
.delay-2 { transition-delay: .16s; }
.delay-3 { transition-delay: .24s; }

/* RESPONSIVE */
@media (max-width: 980px) {
  .hero-grid,
  .split-layout,
  .program-list,
  .two-up {
    grid-template-columns: 1fr;
  }

  .shape-stack {
    min-height: 420px;
  }

  .arch-card {
    min-height: 360px;
  }

  .circle-card {
    min-height: 320px;
    max-width: 320px;
    width: 100%;
    margin-inline: auto;
  }
}

@media (max-width: 720px) {
  .section {
    padding: 4rem 0;
  }

  .hero {
    min-height: auto;
    padding-top: 1rem;
  }

  .shape-stack {
    min-height: 320px;
  }

  .shape-arch {
    inset: 0 12% 22% 0;
    border-radius: 180px 180px 0 0;
  }

  .shape-circle {
    width: 45%;
    max-width: 180px;
  }

  .program-day {
    grid-template-columns: 60px 1fr;
    padding: 1.2rem;
  }

  .program-day__icon {
    width: 60px;
    height: 60px;
    padding: 10px;
  }

  .agenda-content h3 {
    font-size: 1.45rem;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}