:root{
  --bg:#0a0b0d; --bg2:#121418; --card:#16191e; --line:#262a31;
  --txt:#f4f5f7; --mut:#a3a8b2;
  --red:#E30613; --blue:#005EB8; --blue-l:#2f8cff;
  --r:14px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{background:var(--bg);color:var(--txt);font:400 16px/1.65 Montserrat,system-ui,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(1180px,100% - 32px);margin-inline:auto}
h1,h2,h3{line-height:1.12;letter-spacing:-.02em}
h1{font-size:clamp(2.3rem,4.4vw,3.8rem);font-weight:800}
h2{font-size:clamp(1.7rem,3.4vw,2.6rem);font-weight:800;margin-bottom:.6rem}
h3{font-size:1.15rem;font-weight:700}
.grad{background:linear-gradient(90deg,#fff 0%,#9cc8ff 60%,var(--blue-l));-webkit-background-clip:text;background-clip:text;color:transparent}
.kicker{color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.18em;font-size:.78rem;margin-bottom:.6rem}
.sub{color:var(--mut);margin-bottom:2rem}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.95rem 1.5rem;border-radius:999px;background:var(--red);color:#fff;text-decoration:none;font-weight:700;border:0;cursor:pointer;font:inherit;font-weight:700;transition:transform .2s,box-shadow .2s,background .2s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px -10px var(--red)}
.btn-ghost{background:transparent;border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--blue-l);box-shadow:0 10px 30px -12px var(--blue)}
.btn-sm{padding:.55rem 1.1rem;font-size:.9rem}
.btn-full{width:100%}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .3s,border-color .3s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(10,11,13,.86);backdrop-filter:blur(12px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:74px}
.brand img{height:48px;width:auto;mix-blend-mode:lighten}
.menu{display:flex;align-items:center;gap:1.8rem}
.menu a:not(.btn){text-decoration:none;color:var(--mut);font-weight:500;font-size:.95rem;transition:color .2s}
.menu a:not(.btn):hover{color:#fff}
.burger{display:none;background:none;border:0;width:40px;height:40px;cursor:pointer;flex-direction:column;justify-content:center;gap:7px;align-items:center}
.burger span{display:block;width:24px;height:2px;background:#fff;transition:transform .3s}
.burger[aria-expanded=true] span:first-child{transform:translateY(4.5px) rotate(45deg)}
.burger[aria-expanded=true] span:last-child{transform:translateY(-4.5px) rotate(-45deg)}

/* hero */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;padding:110px 0 60px;overflow:hidden;
  background:radial-gradient(900px 500px at 85% 30%,rgba(0,94,184,.22),transparent 60%),radial-gradient(600px 400px at 10% 90%,rgba(227,6,19,.12),transparent 60%),var(--bg)}
.hero-in{display:grid;grid-template-columns:1fr 1.15fr;gap:3rem;align-items:center;position:relative;z-index:2}
.eyebrow{display:flex;flex-wrap:wrap;align-items:center;gap:.6rem;text-transform:uppercase;letter-spacing:.2em;font-size:.72rem;color:var(--mut);margin-bottom:1.4rem}
.dot{width:6px;height:6px;border-radius:50%;display:inline-block}
.dot.red{background:var(--red)}.dot.blue{background:var(--blue-l)}
.lead{color:var(--mut);font-size:1.12rem;margin:1.4rem 0 2rem;max-width:34rem}
.cta{display:flex;flex-wrap:wrap;gap:.8rem}
.usp{list-style:none;display:flex;gap:2.2rem;margin-top:2.6rem;flex-wrap:wrap}
.usp li{color:var(--mut);font-size:.85rem;display:flex;flex-direction:column}
.usp strong{color:#fff;font-size:1.6rem;font-weight:800}
.hero-img{position:relative}
.hero-img{padding:6% 0 9%}
/* blauwe spotlight achter de bus */
.hero-img::before{content:"";position:absolute;inset:-5% -10% 5%;background:radial-gradient(closest-side,rgba(0,94,184,.35),transparent 75%);z-index:-1}
/* reflecterende vloer + schaduw onder de wielen */
.hero-img::after{content:"";position:absolute;left:6%;right:4%;bottom:7%;height:9%;border-radius:50%;
  background:radial-gradient(closest-side,rgba(0,0,0,.95),rgba(0,0,0,.4) 60%,transparent);filter:blur(6px);z-index:-1;animation:shadow 7s ease-in-out infinite}
/* Erwin vóór de bus; onderrand vloeit weg in de vloer */
.hero-img .erwin{position:absolute;z-index:2;left:60%;transform:translateX(-50%);bottom:5%;height:86%;width:auto;
  -webkit-mask-image:linear-gradient(to bottom,#000 78%,transparent 97%);mask-image:linear-gradient(to bottom,#000 78%,transparent 97%);
  filter:drop-shadow(18px 10px 30px rgba(0,0,0,.75))}
.hero-img .bus{width:100%;margin-left:4%;height:auto;position:relative;filter:drop-shadow(0 0 1px rgba(255,255,255,.25));animation:float 7s ease-in-out infinite;
  -webkit-box-reflect:below -2px linear-gradient(transparent 72%,rgba(255,255,255,.14))}
@keyframes shadow{50%{transform:scaleX(.94);opacity:.8}}
@keyframes float{50%{transform:translateY(-10px)}}
.stripes{position:absolute;right:-10%;bottom:12%;width:70%;height:120px;transform:rotate(-18deg);z-index:1;pointer-events:none}
.stripes i{position:absolute;left:0;height:6px;width:100%;border-radius:6px;transform-origin:left;animation:draw 1.6s cubic-bezier(.7,0,.2,1) forwards;transform:scaleX(0)}
.stripes .r{top:0;background:linear-gradient(90deg,transparent,var(--red))}
.stripes .b{top:22px;background:linear-gradient(90deg,transparent,var(--blue));animation-delay:.2s}
@keyframes draw{to{transform:scaleX(1)}}

/* sections */
.sec{padding:110px 0}
.sec-alt{background:var(--bg2);border-block:1px solid var(--line)}

/* cards */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.8rem;cursor:pointer;overflow:hidden;transition:transform .3s,border-color .3s}
.card::before{content:"";position:absolute;inset:0;background:radial-gradient(400px circle at var(--mx,50%) var(--my,0%),rgba(47,140,255,.14),transparent 50%);opacity:0;transition:opacity .3s}
.card:hover,.card:focus-visible{transform:translateY(-4px);border-color:#34414f;outline:none}
.card:hover::before{opacity:1}
.card[data-cat=heat] .ic{color:var(--red)}
.card-wide{grid-column:1/-1;display:flex;gap:1.4rem;align-items:flex-start;background:linear-gradient(100deg,rgba(0,94,184,.16),var(--card) 55%)}
.card.card-wide .ic{flex:none;margin-bottom:0;color:#fff;background:var(--blue);border-color:var(--blue)}
.card-wide>div:last-child>p{color:var(--mut);font-size:.95rem;max-width:46rem}
.card .ic{width:50px;height:50px;border-radius:12px;background:#0d0f12;border:1px solid var(--line);display:grid;place-items:center;margin-bottom:1.2rem;color:var(--blue-l)}
.card .ic svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{margin-bottom:.4rem}
.card>p{color:var(--mut);font-size:.95rem}
.more{display:grid;grid-template-rows:0fr;transition:grid-template-rows .4s}
.more p{overflow:hidden;color:#d3d7de;font-size:.92rem}
.card.open .more{grid-template-rows:1fr}
.card.open .more p{padding-top:.9rem;margin-top:.9rem;border-top:1px solid var(--line)}

/* steps */
.steps{list-style:none;display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-top:2rem;counter-reset:s}
.steps li{padding:1.6rem;border-left:2px solid var(--line);position:relative}
.steps li::before{content:"";position:absolute;left:-2px;top:0;width:2px;height:0;background:linear-gradient(var(--red),var(--blue));transition:height 1s .2s}
.steps li.in::before{height:100%}
.steps span{font-size:2.4rem;font-weight:800;color:#2a2f37;display:block;line-height:1;margin-bottom:.8rem}
.steps p{color:var(--mut);font-size:.93rem;margin-top:.3rem}

/* projects */
.filters{display:flex;flex-wrap:wrap;gap:.5rem;margin:1.2rem 0 2rem}
.filters button{background:transparent;color:var(--mut);border:1px solid var(--line);border-radius:999px;padding:.5rem 1.1rem;font:inherit;font-size:.88rem;cursor:pointer;transition:all .2s}
.filters button.on,.filters button:hover{color:#fff;border-color:var(--blue-l);background:rgba(0,94,184,.18)}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.proj{position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:4/3;background:var(--card);border:1px solid var(--line);transition:opacity .35s,transform .35s}
.proj.hide{display:none}
.proj img{width:100%;height:100%;object-fit:cover;transition:transform .6s}
.proj:hover img{transform:scale(1.05)}
.proj .ph{position:absolute;inset:0;display:grid;place-items:center;background:repeating-linear-gradient(135deg,#14171b 0 14px,#111317 14px 28px);color:#3b424c;font-size:.8rem;text-transform:uppercase;letter-spacing:.15em}
.proj .cap{position:absolute;inset:auto 0 0;padding:1.4rem 1.2rem 1rem;background:linear-gradient(transparent,rgba(0,0,0,.85))}
.proj .cap small{color:var(--red);font-weight:700;text-transform:uppercase;letter-spacing:.12em;font-size:.68rem}
.proj .cap h3{font-size:1rem;margin-top:.15rem}

/* over */
.over{display:grid;grid-template-columns:1.2fr .8fr;column-gap:4rem;row-gap:0;align-items:end}
.over-visual{position:relative;display:flex;justify-content:center;align-self:end}
.over-visual::before{content:"";position:absolute;inset:5% -10% 15%;background:radial-gradient(closest-side,rgba(0,94,184,.32),transparent 75%);z-index:0}
.over-foto{position:relative;z-index:1;width:min(80%,320px);height:auto;
  -webkit-mask-image:linear-gradient(to bottom,#000 88%,transparent);mask-image:linear-gradient(to bottom,#000 88%,transparent)}
.over>.reveal:first-child{align-self:center;padding-bottom:2rem}
.over-box{grid-column:1/-1;background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:1.6rem 2rem;position:relative;z-index:2;overflow:hidden}
.over-box .checks{grid-template-columns:repeat(3,1fr);column-gap:1.6rem}
@media (max-width:960px){.over-box .checks{grid-template-columns:1fr 1fr}.over{row-gap:1.5rem}}
@media (max-width:720px){.over-box .checks{grid-template-columns:1fr}}
.over-box::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--red) 0 50%,var(--blue) 50%)}
.over-box h3{margin-bottom:.4rem}
.over-img{background:#000;border-radius:var(--r);border:1px solid var(--line);overflow:hidden;box-shadow:0 30px 60px -30px rgba(0,0,0,.9)}
.over-img img{width:100%;height:auto}

/* bewegende warmtegolfjes (uit het logo) */
.waves{position:absolute;z-index:1;pointer-events:none;right:6%;top:50%;height:min(88vh,760px);width:auto;transform:translateY(-50%);overflow:visible;
  filter:drop-shadow(0 0 18px rgba(227,6,19,.55))}
.waves path{fill:none;stroke:var(--red);stroke-width:9;stroke-linecap:round;opacity:.16;transform-box:fill-box;transform-origin:50% 100%;
  stroke-dasharray:60 14;animation:sway 3.2s ease-in-out infinite alternate,flow 2.4s linear infinite}
.waves path:nth-child(2){animation-delay:-1.1s,-.8s}
.waves path:nth-child(3){animation-delay:-2.2s,-1.6s}
@keyframes sway{from{transform:skewX(-5deg) translateX(-4px)}to{transform:skewX(5deg) translateX(4px)}}
@keyframes flow{to{stroke-dashoffset:-148}}
.over p:not(.kicker){color:var(--mut);margin-bottom:1rem}
.checks{list-style:none;margin-top:1.4rem;display:grid;gap:.6rem}
.checks li{padding-left:1.8rem;position:relative}
.checks li::before{content:"";position:absolute;left:0;top:.45em;width:12px;height:7px;border-left:2px solid var(--blue-l);border-bottom:2px solid var(--blue-l);transform:rotate(-45deg)}

/* offerte */
.offerte{display:grid;grid-template-columns:.9fr 1.1fr;gap:4rem;align-items:start}
.contact-list{display:grid;gap:1rem}
.contact-list a{text-decoration:none;font-size:1.25rem;font-weight:700;display:flex;flex-direction:column}
.contact-list span{font-size:.75rem;color:var(--mut);text-transform:uppercase;letter-spacing:.15em;font-weight:500}
.form{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:2rem;display:grid;gap:1rem}
.form fieldset{border:0}
.form legend{font-weight:600;margin-bottom:.7rem;font-size:.92rem}
.form label{display:grid;gap:.35rem;font-size:.85rem;color:var(--mut);font-weight:500}
.form input:not([type=checkbox]),.form textarea{background:#0d0f12;border:1px solid var(--line);border-radius:10px;padding:.8rem .9rem;color:#fff;font:inherit;font-size:1rem;transition:border-color .2s}
.form input:focus,.form textarea:focus{outline:none;border-color:var(--blue-l)}
.row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.chips{display:flex;flex-wrap:wrap;gap:.5rem}
.chips label{display:block}
.chips input{position:absolute;opacity:0;pointer-events:none}
.chips span{display:block;padding:.5rem 1rem;border:1px solid var(--line);border-radius:999px;cursor:pointer;color:var(--mut);transition:all .2s;font-size:.88rem}
.chips input:checked+span{background:var(--blue);border-color:var(--blue);color:#fff}
.chips input:focus-visible+span{outline:2px solid var(--blue-l)}
.consent{display:flex!important;align-items:center;gap:.6rem;font-size:.82rem}
.consent input{accent-color:var(--blue)}
.hp{display:none}

/* footer */
.foot{border-top:1px solid var(--line);padding:2.4rem 0}
.foot-in{display:flex;align-items:center;gap:2rem;flex-wrap:wrap;justify-content:space-between}
.foot-logo{height:54px;mix-blend-mode:lighten}
.foot p{color:var(--mut);font-size:.9rem}
.foot a{text-decoration:none}
.small{font-size:.8rem!important}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s,transform .8s}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}.stripes i{transform:none}}

/* responsive */
@media (max-width:960px){
  .hero-in,.over,.offerte{grid-template-columns:1fr;gap:2.5rem}
  .cards,.grid{grid-template-columns:1fr 1fr}
  .steps{grid-template-columns:1fr 1fr}
  .over-img{max-width:480px}
  .waves{right:50%;transform:translate(50%,-50%);height:70vh}
}
@media (max-width:720px){
  .burger{display:flex}
  .menu{position:fixed;inset:74px 0 auto;background:rgba(10,11,13,.97);flex-direction:column;align-items:stretch;padding:1rem 16px 1.6rem;gap:0;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .35s}
  .menu.open{transform:none}
  .menu a:not(.btn){padding:.9rem 0;border-bottom:1px solid var(--line);font-size:1.05rem}
  .menu .btn{margin-top:1rem}
  .cards,.grid,.steps,.row{grid-template-columns:1fr}
  .sec{padding:80px 0}
  .usp{gap:1.4rem}
  .form{padding:1.3rem}
  .brand img{height:40px}
}