/* ============================================================
   Tienervakantiespelen Heerhugowaard – Stylesheet
   Pas de :root variabelen aan voor jaarlijkse updates.
   ============================================================ */

/* === Config variabelen (jaarlijks aanpassen) === */
:root {
  /* Coolors: Refreshing Summer Fun */
  /* Deep Space Blue – hero, footer, donkere secties */
  --color-primary:       #023047;
  --color-primary-dark:  #011E2E;
  --color-primary-mid:   #219EBC;  /* Blue Green – links, actieve nav */
  --color-primary-light: #D6EFF8;  /* lichte blauwtint */

  /* Tiger Orange – primaire CTA-knoppen */
  --color-accent:        #FB8500;
  --color-accent-dark:   #D47100;
  --color-accent-light:  #FFF0DC;

  /* Amber Flame – highlights, badges, secundaire accenten */
  --color-amber:         #FFB703;
  --color-amber-dark:    #D49700;
  --color-amber-light:   #FFF8E1;

  /* Sky Blue – zachte achtergronden, kindgroep badges */
  --color-sky:           #8ECAE6;
  --color-sky-light:     #EBF7FB;

  /* Grijs tonen */
  --color-gray-50:       #F8F9FA;
  --color-gray-100:      #F1F3F5;
  --color-gray-200:      #DEE2E6;
  --color-gray-600:      #495057;
  --color-gray-700:      #343A40;
  --color-gray-800:      #212529;
  --color-gray-900:      #0D1117;

  /* Layout */
  --radius-sm:  0.5rem;
  --radius:     0.75rem;
  --radius-lg:  1rem;
  --radius-xl:  1.5rem;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.07);
  --shadow:     0 4px 14px rgba(0,0,0,.09);
  --shadow-md:  0 8px 24px rgba(0,0,0,.12);
  --max-width:  72rem;
  --px:         1.25rem;
}

/* === Reset & base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
  color: var(--color-gray-900);
  background: #fff;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
main { flex: 1; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary-mid); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

/* === Utility === */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 var(--px); }
.section    { padding: 4rem var(--px); max-width: var(--max-width); margin: 0 auto; }
.section-bg { background: var(--color-sky-light); }
.text-center { text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }

/* === Typography === */
h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 700; line-height: 1.25; }
h3 { font-size: 1.125rem; font-weight: 700; }
p  { color: var(--color-gray-700); }

/* === Buttons === */
.btn {
  display: inline-flex; align-items: center; gap: .4rem;
  padding: .75rem 1.5rem; border-radius: var(--radius);
  font-weight: 700; font-size: .95rem;
  transition: opacity .15s, transform .1s;
  text-decoration: none; line-height: 1;
}
.btn:hover { opacity: .9; transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn-primary  { background: var(--color-primary);  color: #fff; }
.btn-accent   { background: var(--color-accent);   color: #fff; }
.btn-accent:hover { background: var(--color-accent-dark); opacity: 1; }
.btn-outline  { border: 2px solid rgba(255,255,255,.5); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.btn-white    { background: #fff; color: var(--color-primary); }
.btn-white-accent { background: #fff; color: var(--color-accent); }
.btn-white-accent:hover { background: #fdf5ef; }
.btn-lg { padding: 1rem 2rem; font-size: 1.05rem; border-radius: var(--radius-lg); }
.btn-sm { padding: .5rem 1rem; font-size: .875rem; }

/* === Navbar === */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: #fff; border-bottom: 1px solid var(--color-gray-100);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s;
}
.navbar.scrolled { box-shadow: var(--shadow); }
.navbar-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 0 var(--px);
  display: flex; align-items: center; justify-content: space-between;
  height: 4rem;
}
.navbar-brand {
  display: flex; align-items: center; gap: .5rem;
  font-weight: 800; font-size: 1rem; color: var(--color-primary);
  text-decoration: none;
}
.navbar-brand .emoji { font-size: 1.4rem; }
.nav-links { display: flex; align-items: center; gap: .25rem; }
.nav-links a {
  padding: .45rem .75rem; border-radius: var(--radius-sm);
  font-size: .875rem; font-weight: 500; color: var(--color-gray-700);
  text-decoration: none; transition: background .15s;
}
.nav-links a:hover { background: var(--color-gray-100); text-decoration: none; }
.nav-links a.active { background: var(--color-sky-light); color: var(--color-primary); }
.nav-links .btn-accent { margin-left: .5rem; color: #023047; }
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  padding: .5rem; border-radius: var(--radius-sm);
}
.hamburger span { display: block; width: 22px; height: 2px; background: var(--color-gray-700); border-radius: 2px; transition: .3s; }
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-menu {
  display: none; flex-direction: column; gap: .25rem;
  padding: .75rem var(--px); background: #fff; border-top: 1px solid var(--color-gray-100);
}
.mobile-menu.open { display: flex; }
.mobile-menu a {
  padding: .65rem .75rem; border-radius: var(--radius-sm);
  font-weight: 500; color: var(--color-gray-700); text-decoration: none;
}
.mobile-menu a:hover  { background: var(--color-gray-100); }
.mobile-menu a.active { background: var(--color-sky-light); color: var(--color-primary); }

/* === Hero === */
.hero {
  background: var(--color-primary);
  color: #fff; padding: 5rem var(--px) 0;
}
.hero-inner { max-width: var(--max-width); margin: 0 auto; }
.hero h1 { color: #fff; }
.hero h1 span { color: var(--color-accent); }
.hero-subtitle { font-size: 1.25rem; color: #8ECAE6; font-weight: 500; margin-top: .75rem; }
.hero-desc  { color: #6BAEC8; max-width: 36rem; margin-top: .75rem; }
.hero-ctas  { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.hero-strip {
  background: rgba(0,0,0,.15); border-top: 1px solid rgba(255,255,255,.1);
  margin-top: 3rem;
}
.hero-strip-inner {
  max-width: var(--max-width); margin: 0 auto; padding: 1rem var(--px);
  display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; text-align: center;
}
.strip-item .icon  { font-size: 1.5rem; }
.strip-item .label { font-size: .7rem; color: #8ECAE6; text-transform: uppercase; letter-spacing: .05em; }
.strip-item .value { font-size: .9rem; font-weight: 600; color: #fff; margin-top: .2rem; }

/* === Status badge === */
.status-badge {
  display: inline-flex; align-items: center;
  padding: .3rem .85rem; border-radius: 9999px;
  font-size: .85rem; font-weight: 700; margin-bottom: 1rem;
}
.status-open       { background: var(--color-primary-mid); color: #fff; }
.status-binnenkort { background: var(--color-amber);    color: #023047; }
.status-bijna-vol  { background: var(--color-accent);   color: #fff; }
.status-wachtlijst { background: var(--color-primary);  color: #fff; }
.status-gesloten  { background: var(--color-gray-600); color: #fff; }
.status-voorbij   { background: var(--color-gray-600); color: #fff; }

/* === Page header === */
.page-header { background: var(--color-primary); color: #fff; padding: 3.5rem var(--px); }
.page-header-inner { max-width: var(--max-width); margin: 0 auto; }
.page-header h1 { color: #fff; }
.page-header p  { color: #8ECAE6; font-size: 1.1rem; max-width: 36rem; margin-top: .5rem; }

/* === Cards === */
.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr)); gap: 1.25rem; }
.card {
  background: #fff; border-radius: var(--radius-xl); padding: 1.5rem;
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-gray-100);
  transition: box-shadow .2s, transform .2s;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }
.card-icon  { font-size: 2.5rem; margin-bottom: .75rem; }
.card h3    { margin-bottom: .5rem; }
.card p     { font-size: .9rem; line-height: 1.65; }

/* === Info blocks === */
.info-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(9rem, 1fr)); gap: .75rem; }
.info-block {
  background: var(--color-sky-light); border-radius: var(--radius-lg);
  padding: 1rem; text-align: center;
}
.info-block .icon  { font-size: 1.5rem; margin-bottom: .25rem; }
.info-block .label { font-size: .7rem; color: var(--color-primary-mid); font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.info-block .value { font-size: .85rem; font-weight: 600; color: var(--color-gray-800); margin-top: .2rem; }

/* === Check lists === */
.check-list { display: flex; flex-direction: column; gap: .6rem; }
.check-list li { display: flex; align-items: flex-start; gap: .6rem; font-size: .95rem; color: var(--color-gray-700); }
.check-list li .icon { flex-shrink: 0; margin-top: .1rem; }
.check-list.cross .icon { color: #ef4444; }
.check-list.tick  .icon { color: var(--color-primary-mid); }

/* === CTA banner === */
.cta-banner { padding: 4rem var(--px); text-align: center; }
.cta-banner-primary { background: var(--color-primary); color: #fff; }
.cta-banner-accent  { background: var(--color-accent);  color: #fff; }
.cta-banner h2 { color: #fff; }
.cta-banner p  { color: rgba(255,255,255,.85); margin-top: .5rem; font-size: 1.1rem; }
.cta-banner .cta-btns { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-top: 2rem; }

/* === Testimonials === */
.testimonials-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(18rem, 1fr)); gap: 1.25rem; }
.testimonial { background: #fff; border-radius: var(--radius-xl); padding: 1.5rem; box-shadow: var(--shadow-sm); border: 1px solid var(--color-gray-100); }
.testimonial .quote-mark { font-size: 2rem; color: var(--color-amber); line-height: 1; margin-bottom: .5rem; }
.testimonial p { font-style: italic; font-size: .95rem; line-height: 1.65; }
.testimonial .author { font-weight: 700; font-size: .875rem; color: var(--color-gray-900); margin-top: 1rem; }

/* === Sponsor strip === */
.sponsor-strip { display: flex; flex-wrap: wrap; justify-content: center; gap: .75rem; margin-top: 1.5rem; }
.sponsor-item {
  background: var(--color-gray-100); border-radius: var(--radius);
  padding: .75rem 1.5rem; font-size: .875rem; font-weight: 600; color: var(--color-gray-700);
  border: 2px solid transparent;
}
.sponsor-placeholder {
  background: var(--color-amber-light); border: 2px dashed var(--color-amber);
  color: var(--color-amber-dark);
}

/* === FAQ accordion === */
.faq-list { display: flex; flex-direction: column; gap: .5rem; }
.faq-item { border: 1px solid var(--color-gray-200); border-radius: var(--radius-lg); overflow: hidden; }
.faq-question {
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem 1.25rem; text-align: left;
  font-weight: 600; font-size: .95rem; color: var(--color-gray-900);
  background: #fff; cursor: pointer; transition: background .15s;
}
.faq-question:hover { background: var(--color-gray-50); }
.faq-question[aria-expanded="true"] { background: var(--color-gray-50); }
.faq-icon { flex-shrink: 0; margin-left: 1rem; color: var(--color-primary-mid); transition: transform .2s; }
.faq-question[aria-expanded="true"] .faq-icon { transform: rotate(180deg); }
.faq-answer { display: none; padding: 0 1.25rem 1.1rem; color: var(--color-gray-700); font-size: .95rem; line-height: 1.7; border-top: 1px solid var(--color-gray-100); }
.faq-answer.open { display: block; }

/* === Gallery === */
.gallery-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr)); gap: .75rem; }
.gallery-item {
  border-radius: var(--radius-lg); overflow: hidden; cursor: pointer;
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  font-size: 4rem; transition: opacity .15s, transform .2s;
  position: relative;
}
.gallery-item:hover { opacity: .88; transform: scale(1.02); }
.gallery-caption {
  position: absolute; bottom: 0; left: 0; right: 0;
  background: rgba(0,0,0,.5); color: #fff; font-size: .8rem; font-weight: 600;
  padding: .5rem .75rem; text-align: center;
}
.lightbox {
  display: none; position: fixed; inset: 0; z-index: 200;
  background: rgba(0,0,0,.85); align-items: center; justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox-inner {
  background: #fff; border-radius: var(--radius-xl); max-width: 40rem; width: 90%;
  padding: 2rem; text-align: center; position: relative;
}
.lightbox-close {
  position: absolute; top: .75rem; right: .75rem;
  font-size: 1.5rem; color: var(--color-gray-600); background: none; border: none; cursor: pointer;
}
.lightbox-emoji { font-size: 6rem; margin-bottom: 1rem; }
.lightbox-caption { font-size: 1rem; font-weight: 600; color: var(--color-gray-800); }

/* === Form === */
.form-group { display: flex; flex-direction: column; gap: .375rem; }
.form-group label { font-size: .875rem; font-weight: 600; color: var(--color-gray-700); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: .65rem 1rem; border: 1.5px solid var(--color-gray-200);
  border-radius: var(--radius); font-size: .9rem;
  transition: border-color .15s;
  background: #fff; color: var(--color-gray-900);
  width: 100%;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none; border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-group textarea { resize: vertical; min-height: 4rem; }
.form-required { color: #ef4444; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row { display: flex; flex-direction: column; gap: 1rem; }
.radio-group { display: flex; flex-direction: column; gap: .5rem; }
.radio-group label { display: flex; align-items: flex-start; gap: .6rem; font-weight: 400; cursor: pointer; }
.radio-group input { margin-top: .2rem; flex-shrink: 0; }
.checkbox-label { display: flex; align-items: flex-start; gap: .75rem; cursor: pointer; font-size: .9rem; }
.checkbox-label input { margin-top: .2rem; flex-shrink: 0; }

/* Stap indicator */
.steps-bar { display: flex; align-items: center; gap: .5rem; margin-bottom: 2rem; }
.step-dot {
  width: 2rem; height: 2rem; border-radius: 9999px;
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; flex-shrink: 0;
  background: var(--color-gray-200); color: var(--color-gray-600);
}
.step-dot.active { background: var(--color-primary); color: #fff; }
.step-dot.done { background: var(--color-primary-mid); color: #fff; }
.step-line { flex: 1; height: 3px; border-radius: 2px; background: var(--color-gray-200); }
.step-line.done { background: var(--color-primary); }
.form-section { display: none; }
.form-section.active { display: flex; flex-direction: column; gap: 1rem; }

/* === Info card box === */
.info-card {
  background: #fff; border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm); border: 1px solid var(--color-gray-100);
  padding: 1.5rem;
}
.info-card h2 { display: flex; align-items: center; gap: .5rem; font-size: 1.15rem; color: var(--color-gray-900); margin-bottom: .75rem; }

/* === Alert box === */
.alert { border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.5rem; border-left: 4px solid; }
.alert-accent  { background: var(--color-amber-light);  border-color: var(--color-amber);       color: var(--color-gray-800); }
.alert-green   { background: var(--color-sky-light);    border-color: var(--color-primary-mid); color: var(--color-gray-800); }
.alert-blue    { background: var(--color-sky-light);    border-color: var(--color-primary);     color: var(--color-gray-800); }
.alert-gray    { background: var(--color-gray-100); border-color: var(--color-gray-600); color: var(--color-gray-700); }

/* === Feature grid === */
.features-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr)); gap: 1rem; }
.feature-item { background: var(--color-gray-50); border-radius: var(--radius-xl); padding: 1.25rem; text-align: center; }
.feature-item .icon { font-size: 2rem; margin-bottom: .5rem; }
.feature-item p { font-size: .875rem; font-weight: 600; color: var(--color-gray-700); }

/* === Volunteer card === */
.vol-types { display: grid; grid-template-columns: repeat(auto-fill, minmax(10rem, 1fr)); gap: .75rem; }
.vol-type { background: var(--color-gray-50); border-radius: var(--radius-lg); padding: 1rem; text-align: center; }
.vol-type .icon { font-size: 2rem; margin-bottom: .5rem; }
.vol-type p { font-size: .85rem; font-weight: 600; color: var(--color-gray-700); }

/* === Sponsor why === */
.why-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr)); gap: 1.25rem; }

/* === Contact === */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: start; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; background: var(--color-gray-50); border-radius: var(--radius); padding: 1rem; }
.contact-item .icon { font-size: 1.5rem; flex-shrink: 0; }
.contact-item .lbl { font-size: .7rem; font-weight: 700; color: var(--color-gray-600); text-transform: uppercase; }
.contact-item a { color: var(--color-primary-mid); font-weight: 600; }

/* === Section headings === */
.section-heading { text-align: center; margin-bottom: 2.5rem; }
.section-heading h2 { margin-bottom: .5rem; }
.section-heading p { color: var(--color-gray-600); }

/* === Success state === */
.success-box { background: var(--color-sky-light); border-radius: var(--radius-xl); padding: 3rem 2rem; text-align: center; }
.success-box .icon { font-size: 3.5rem; margin-bottom: 1rem; }
.success-box h2 { color: var(--color-primary-mid); }

/* === Footer === */
footer {
  background: var(--color-gray-900); color: #9ca3af; margin-top: auto;
}
.footer-main {
  max-width: var(--max-width); margin: 0 auto; padding: 3rem var(--px);
  display: grid; grid-template-columns: repeat(auto-fill, minmax(13rem, 1fr)); gap: 2rem;
}
.footer-col h3 { color: #fff; font-size: .9rem; margin-bottom: .75rem; }
.footer-col p  { font-size: .875rem; line-height: 1.65; }
.footer-col ul { display: flex; flex-direction: column; gap: .4rem; }
.footer-col li a { color: #9ca3af; font-size: .875rem; text-decoration: none; }
.footer-col li a:hover { color: #fff; text-decoration: none; }
.footer-brand { font-size: 1rem; font-weight: 800; color: #fff; display: flex; align-items: center; gap: .4rem; margin-bottom: .75rem; }
.footer-socials { display: flex; gap: .5rem; margin-top: 1rem; }
.footer-socials a { color: #9ca3af; font-size: .875rem; }
.footer-socials a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #374151;
  max-width: var(--max-width); margin: 0 auto;
  padding: 1rem var(--px);
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .5rem;
  font-size: .8rem;
}
.footer-bottom a { color: #9ca3af; text-decoration: none; }
.footer-bottom a:hover { color: #fff; }

/* === Responsive === */
@media (max-width: 64rem) {
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 48rem) {
  .hero-strip-inner { grid-template-columns: repeat(2, 1fr); }
  .form-grid-2 { grid-template-columns: 1fr; }
  .hamburger { display: flex; }
  .nav-links { display: none; }
  :root { --px: 1rem; }
  .section { padding: 2.5rem var(--px); }
}
@media (max-width: 28rem) {
  .hero-ctas { flex-direction: column; }
  .hero-strip-inner { grid-template-columns: 1fr 1fr; }
}

/* === Focus visible === */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid var(--color-accent); outline-offset: 2px;
}