/* Skicentrumsysteem promotiesite. Drie thema's via html[data-thema]: poeder (wit/blauw), gletsjer (lichtblauw), avond (donkerblauw). */

:root, [data-thema="poeder"] {
  --bg: #ffffff;
  --bg-vlak: #f1f6fc;
  --tekst: #0c2340;
  --zacht: #4b6283;
  --accent: #1463d6;
  --accent-donker: #0b4aa6;
  --accent-licht: #e3eefc;
  --rand: #dbe5f1;
  --kaart: #ffffff;
  --kop-bg: rgba(255, 255, 255, .86);
  --hero-tekst: #0c2340;
  --hero-overlay: linear-gradient(90deg, rgba(255,255,255,.96) 0%, rgba(255,255,255,.88) 38%, rgba(255,255,255,.25) 70%, rgba(255,255,255,0) 100%);
  --foto-hero: url("img/foto-piste.jpg");
  --foto-hero-pos: center 70%;
  --foto-band: url("img/foto-groep.jpg");
  --band-overlay: linear-gradient(0deg, rgba(8, 40, 92, .72), rgba(8, 40, 92, .45));
  --schaduw: 0 24px 60px -24px rgba(12, 35, 64, .35);
  --radius: 14px;
  --logo-bg: #ffffff;
}

[data-thema="gletsjer"] {
  --bg: #eaf5fd;
  --bg-vlak: #d9eefb;
  --tekst: #0a2a47;
  --zacht: #3f6283;
  --accent: #0a86c8;
  --accent-donker: #066a9f;
  --accent-licht: #cfe9f8;
  --rand: rgba(10, 134, 200, .18);
  --kaart: rgba(255, 255, 255, .72);
  --kop-bg: rgba(234, 245, 253, .8);
  --hero-tekst: #0a2a47;
  --hero-overlay: linear-gradient(180deg, rgba(234,245,253,.55) 0%, rgba(234,245,253,.82) 55%, #eaf5fd 100%);
  --foto-hero: url("img/foto-groep.jpg");
  --foto-hero-pos: center 30%;
  --foto-band: url("img/foto-piste.jpg");
  --band-overlay: linear-gradient(0deg, rgba(6, 106, 159, .7), rgba(10, 134, 200, .35));
  --schaduw: 0 24px 60px -28px rgba(6, 80, 130, .45);
  --radius: 22px;
  --logo-bg: rgba(255, 255, 255, .85);
}

[data-thema="avond"] {
  --bg: #071a33;
  --bg-vlak: #0b2446;
  --tekst: #e6f0fb;
  --zacht: #9db4d0;
  --accent: #47b8f5;
  --accent-donker: #2a9be0;
  --accent-licht: rgba(71, 184, 245, .14);
  --rand: rgba(157, 180, 208, .18);
  --kaart: #0e2a50;
  --kop-bg: rgba(7, 26, 51, .82);
  --hero-tekst: #ffffff;
  --hero-overlay: linear-gradient(90deg, rgba(7,26,51,.95) 0%, rgba(7,26,51,.82) 42%, rgba(7,26,51,.35) 100%);
  --foto-hero: url("img/foto-groep.jpg");
  --foto-hero-pos: center 35%;
  --foto-band: url("img/foto-piste.jpg");
  --band-overlay: linear-gradient(0deg, rgba(7, 26, 51, .82), rgba(7, 26, 51, .55));
  --schaduw: 0 30px 70px -24px rgba(0, 0, 0, .65);
  --radius: 16px;
  --logo-bg: #ffffff;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--tekst);
  font: 17px/1.6 "Segoe UI Variable Text", "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
[data-thema="gletsjer"] body {
  background:
    radial-gradient(1200px 600px at 85% -10%, #ffffff 0%, transparent 60%),
    radial-gradient(900px 500px at -10% 40%, #d3ecfb 0%, transparent 60%),
    var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -.015em; }
h1 { font-size: clamp(2.1rem, 4.2vw, 3.3rem); font-weight: 750; }
h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); font-weight: 720; }
h3 { font-size: 1.12rem; font-weight: 680; }
p { margin: 0 0 1em; }
.zacht { color: var(--zacht); }
.breed { width: min(1180px, 100% - 32px); margin-inline: auto; }
.label {
  display: inline-block;
  font-size: .78rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .8em;
}

/* Knoppen */
.knop {
  display: inline-flex; align-items: center; justify-content: center;
  padding: .8em 1.4em; border-radius: 999px; border: 0;
  background: var(--accent); color: #fff; font: inherit; font-weight: 650;
  text-decoration: none; cursor: pointer;
  box-shadow: 0 8px 22px -10px var(--accent);
  transition: background .15s, transform .15s;
}
.knop:hover { background: var(--accent-donker); transform: translateY(-1px); }
[data-thema="avond"] .knop { color: #04172e; }
.knop-licht { background: transparent; color: var(--hero-tekst); box-shadow: inset 0 0 0 2px currentColor; }
.knop-licht:hover { background: var(--accent-licht); }
.knop-klein { padding: .5em 1.1em; font-size: .92rem; }

/* Kop */
.kop {
  position: sticky; top: 0; z-index: 20;
  background: var(--kop-bg);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--rand);
}
.kop-binnen { display: flex; align-items: center; gap: 22px; height: 68px; }
.merk { display: flex; align-items: center; gap: 10px; color: var(--tekst); text-decoration: none; font-size: 1.15rem; font-weight: 600; }
.merk b { color: var(--accent); font-weight: 750; }
.merk-icoon { width: 36px; height: 36px; color: var(--accent); flex: none; }
.menu { display: flex; gap: 18px; }
/* Logo van Wessels Application Development in het midden van de kop, telefoonnummer rechts */
.kop-wadweb { margin-inline: auto; flex: none; }
.kop-wadweb img { height: 26px; width: auto; }
.kop-tel { display: inline-flex; align-items: center; gap: 7px; color: var(--tekst); font-weight: 650; font-size: .95rem; text-decoration: none; white-space: nowrap; }
.kop-tel svg { color: var(--accent); }
.knop-klein { white-space: nowrap; }
.menu a { color: var(--zacht); text-decoration: none; font-size: .92rem; font-weight: 550; white-space: nowrap; }
.menu a:hover { color: var(--accent); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 72px 0 84px; color: var(--hero-tekst); }
.hero-foto { position: absolute; inset: 0; background: var(--hero-overlay), var(--foto-hero) var(--foto-hero-pos) / cover no-repeat; }
.hero-binnen { position: relative; display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; }
.hero h1 span { color: var(--accent); display: block; }
.intro { font-size: 1.12rem; max-width: 34em; color: var(--hero-tekst); opacity: .88; }
.knoppen { display: flex; flex-wrap: wrap; gap: 12px; margin: 1.6em 0 1.4em; }
.kenmerken { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.kenmerken li {
  font-size: .85rem; font-weight: 600; padding: .35em .85em; border-radius: 999px;
  background: var(--accent-licht); color: var(--accent-donker);
}
[data-thema="avond"] .kenmerken li { color: var(--accent); }
.hero-scherm { margin: 0; }
.hero-scherm img {
  border-radius: var(--radius); box-shadow: var(--schaduw);
  border: 1px solid var(--rand);
  transform: perspective(1600px) rotateY(-7deg) rotateX(2deg);
  transform-origin: left center;
}

/* Hero: vier schermen in 3D achter elkaar */
.hero-stapel { position: relative; margin: 36px 0 0; aspect-ratio: 16 / 10; perspective: 1800px; }
.hero-stapel img {
  position: absolute; border-radius: 10px; border: 1px solid var(--rand); background: #fff;
  box-shadow: 0 28px 60px -22px rgba(6, 40, 80, .5);
  transform: rotateY(-16deg) rotateX(5deg); transform-origin: left center;
  transition: transform .35s ease;
}
.hero-stapel .stapel-1 { width: 66%; left: 0; top: 0; }
.hero-stapel .stapel-2 { width: 62%; left: 13%; top: 15%; }
.hero-stapel .stapel-3 { width: 40%; left: 30%; top: 29%; }
.hero-stapel .stapel-4 { width: 58%; left: 42%; top: 47%; }
.hero-stapel img:hover { transform: rotateY(-16deg) rotateX(5deg) translateZ(60px); z-index: 2; }
[data-thema="gletsjer"] .hero-stapel { max-width: 1000px; width: 100%; margin-inline: auto; }

/* Thema-specifieke hero-opmaak */
[data-thema="gletsjer"] .hero { padding-top: 88px; text-align: center; }
[data-thema="gletsjer"] .hero-binnen { grid-template-columns: 1fr; gap: 40px; }
[data-thema="gletsjer"] .hero-tekst { max-width: 820px; margin-inline: auto; }
[data-thema="gletsjer"] .intro { margin-inline: auto; }
[data-thema="gletsjer"] .knoppen, [data-thema="gletsjer"] .kenmerken { justify-content: center; }
[data-thema="gletsjer"] .hero-scherm { max-width: 1000px; margin-inline: auto; padding: 10px; border-radius: calc(var(--radius) + 10px); background: rgba(255,255,255,.55); backdrop-filter: blur(10px); box-shadow: var(--schaduw); }
[data-thema="gletsjer"] .hero-scherm img { transform: none; box-shadow: none; }
[data-thema="avond"] .hero { padding: 96px 0 104px; }

/* Logo's */
.logos { padding: 36px 0; border-bottom: 1px solid var(--rand); }
.logos-kop { text-align: center; color: var(--zacht); font-size: .9rem; margin-bottom: 18px; }
/* Logo's op één regel die langzaam doorloopt (kopieën via site.js), pauzeert bij aanwijzen */
.logo-band { overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent); }
.logo-rij { display: flex; align-items: center; gap: 36px; width: max-content; animation: logo-scroll 45s linear infinite; }
.logo-band:hover .logo-rij { animation-play-state: paused; }
@keyframes logo-scroll { to { transform: translateX(calc(-50% - 18px)); } }
@media (prefers-reduced-motion: reduce) {
  .logo-band { -webkit-mask-image: none; mask-image: none; }
  .logo-rij { animation: none; width: auto; flex-wrap: wrap; justify-content: center; gap: 14px; }
  .logo-rij [aria-hidden="true"] { display: none; }
}
.logo-rij img {
  height: 58px; width: auto; padding: 8px 14px; border-radius: 10px;
  background: var(--logo-bg); border: 1px solid var(--rand); object-fit: contain;
}
.logo-rij img.logo-licht { background: #0c2340; }

/* Secties */
.sectie { padding: 88px 0; }
.sectie-vlak { background: var(--bg-vlak); }
[data-thema="gletsjer"] .sectie-vlak { background: rgba(255,255,255,.4); }
.sectie-kop { max-width: 720px; margin-bottom: 44px; }
.sectie-kop .zacht { font-size: 1.06rem; }
/* Lessen: foto van een indoor skibaan als rustige achtergrond */
#lessen { background: var(--lessen-overlay), url("img/foto-indoor.jpg") center 40% / cover no-repeat; }
:root, [data-thema="poeder"] { --lessen-overlay: linear-gradient(180deg, rgba(255,255,255,.8) 0%, rgba(255,255,255,.93) 45%, #fff 100%); }
[data-thema="gletsjer"] { --lessen-overlay: linear-gradient(180deg, rgba(234,245,253,.78) 0%, rgba(234,245,253,.92) 45%, rgba(234,245,253,.97) 100%); }
[data-thema="avond"] { --lessen-overlay: linear-gradient(180deg, rgba(7,26,51,.8) 0%, rgba(7,26,51,.92) 45%, #071a33 100%); }

.lessen { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.les { background: var(--kaart); border: 1px solid var(--rand); border-radius: var(--radius); overflow: hidden; box-shadow: 0 10px 30px -22px rgba(0,0,0,.4); }
.les img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.les-tekst { padding: 20px 22px 6px; }
.les-tekst p { color: var(--zacht); font-size: .96rem; }

.functies { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.functie { background: var(--kaart); border: 1px solid var(--rand); border-radius: var(--radius); padding: 22px; }
.functie p { color: var(--zacht); font-size: .93rem; margin: 0; }
.f-icoon {
  display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 14px;
  border-radius: 12px; background: var(--accent-licht); color: var(--accent); font-size: 1.2rem;
}

.tweeluik { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
/* Online boeken: drie portaalschermen schuin achter elkaar (plat, geen 3D) */
.online-stapel { position: relative; margin: 0; aspect-ratio: 1 / 1; }
.online-stapel img { position: absolute; border-radius: 12px; border: 1px solid var(--rand); background: #fff; box-shadow: 0 24px 50px -20px rgba(6, 40, 80, .45); }
.online-stapel .online-1 { width: 72%; left: 0; top: 0; }
.online-stapel .online-2 { width: 66%; left: 17%; top: 14%; }
.online-stapel .online-3 { width: 70%; left: 30%; top: 58%; }
.vinkjes { list-style: none; padding: 0; margin: 1.2em 0 0; display: grid; gap: 10px; }
.vinkjes li { position: relative; padding-left: 32px; }
.vinkjes li::before {
  content: "✓"; position: absolute; left: 0; top: .15em;
  display: grid; place-items: center; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent); color: #fff; font-size: .75rem; font-weight: 800;
}
[data-thema="avond"] .vinkjes li::before { color: #04172e; }

.galerij-tabs { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 18px; }
.galerij-tabs button {
  font: inherit; font-size: .92rem; font-weight: 600; cursor: pointer;
  padding: .5em 1.1em; border-radius: 999px; border: 1px solid var(--rand);
  background: var(--kaart); color: var(--zacht);
}
.galerij-tabs button[aria-selected="true"] { background: var(--accent); border-color: var(--accent); color: #fff; }
[data-thema="avond"] .galerij-tabs button[aria-selected="true"] { color: #04172e; }
.galerij-beeld { margin: 0; }
.galerij-beeld img { width: 100%; border-radius: var(--radius); box-shadow: var(--schaduw); border: 1px solid var(--rand); }

.stappen { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: stap; }
.stappen li {
  counter-increment: stap; position: relative;
  background: var(--kaart); border: 1px solid var(--rand); border-radius: var(--radius); padding: 26px 24px 24px 24px;
}
.stappen li::before {
  content: counter(stap); display: grid; place-items: center; width: 38px; height: 38px; margin-bottom: 12px;
  border-radius: 50%; background: var(--accent); color: #fff; font-weight: 750;
}
[data-thema="avond"] .stappen li::before { color: #04172e; }
.stappen b { display: block; font-size: 1.08rem; margin-bottom: 4px; }
.stappen span { color: var(--zacht); font-size: .95rem; }

.band { position: relative; padding: 110px 0; color: #fff; text-align: center; overflow: hidden; }
.band-foto { position: absolute; inset: 0; background: var(--band-overlay), var(--foto-band) center 55% / cover no-repeat; }
.band-binnen { position: relative; }
.band p { font-size: 1.12rem; opacity: .92; margin: 0; }

.contact { font-style: normal; display: grid; gap: 4px; margin-top: 1.2em; }
.contact span { font-weight: 650; }
.formulier { display: grid; gap: 14px; background: var(--kaart); border: 1px solid var(--rand); border-radius: var(--radius); padding: 28px; box-shadow: var(--schaduw); }
.formulier label { display: grid; gap: 6px; font-size: .9rem; font-weight: 600; }
.formulier input, .formulier textarea {
  font: inherit; font-weight: 400; padding: .65em .8em; border-radius: 10px;
  border: 1px solid var(--rand); background: var(--bg); color: var(--tekst);
}
.formulier input:focus, .formulier textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.formulier .knop { justify-self: start; }

.voet { border-top: 1px solid var(--rand); padding: 28px 0; font-size: .9rem; }
.voet-binnen { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px; }
.voet a { color: inherit; text-decoration: none; }
.voet a:hover { color: var(--accent); }

/* Variantkiezer (tijdelijk) */
.kiezer {
  position: fixed; left: 50%; bottom: 14px; transform: translateX(-50%); z-index: 50;
  display: flex; gap: 4px; padding: 5px; border-radius: 999px;
  background: rgba(12, 35, 64, .9); box-shadow: 0 10px 30px rgba(0,0,0,.3);
  font-size: .82rem;
}
.kiezer a { color: #cfe0f5; text-decoration: none; padding: .4em .9em; border-radius: 999px; white-space: nowrap; }
.kiezer a[aria-current="page"] { background: #fff; color: #0c2340; font-weight: 650; }

@media (max-width: 980px) {
  .menu { display: none; }
  .hero-binnen, .tweeluik { grid-template-columns: 1fr; }
  .hero-scherm img { transform: none; }
  .hero-stapel img, .hero-stapel img:hover { transform: none; }
  .lessen, .stappen { grid-template-columns: 1fr; }
  .functies { grid-template-columns: repeat(2, 1fr); }
  .hero-foto { background: var(--hero-overlay), var(--foto-hero) var(--foto-hero-pos) / cover no-repeat; }
  [data-thema="poeder"] .hero-foto { background: linear-gradient(180deg, rgba(255,255,255,.92), rgba(255,255,255,.8)), var(--foto-hero) center / cover no-repeat; }
  [data-thema="avond"] .hero-foto { background: linear-gradient(180deg, rgba(7,26,51,.9), rgba(7,26,51,.78)), var(--foto-hero) center / cover no-repeat; }
}
@media (max-width: 1250px) {
  .kop-tel span { display: none; }
  .kop-tel { width: 38px; height: 38px; justify-content: center; border-radius: 10px; border: 1px solid var(--rand); }
}
@media (max-width: 1140px) { .menu { display: none; } }
@media (max-width: 680px) {
  .kop-wadweb { display: none; }
  .kop-tel { margin-left: auto; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .functies { grid-template-columns: 1fr; }
  .kop-binnen { gap: 12px; }
  .merk span { font-size: 1rem; }
  .sectie { padding: 64px 0; }
  .logo-rij img { height: 46px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .knop { transition: none; }
}

/* Grid-kolommen mogen smaller worden dan de afbeelding erin (anders loopt het op mobiel uit beeld). */
.hero-binnen > *, .tweeluik > *, .lessen > *, .functies > *, .stappen > * { min-width: 0; }
@media (max-width: 980px) {
  .hero-binnen, .tweeluik, .lessen, .stappen { grid-template-columns: minmax(0, 1fr); }
  .kiezer { font-size: .72rem; max-width: calc(100% - 16px); overflow-x: auto; }
}