/* luuk.wtf design system. One look across home, apartment, rooms, 3D and cast. */
:root{
  --paper:#F6F0E2; --paper-2:#EEE5CF; --paper-3:#E4D8BC;
  --ink:#0F3460; --ink-2:#2B4C7E; --ink-soft:rgba(15,52,96,.68); --ink-faint:rgba(15,52,96,.14);
  --orange:#FF6B35; --orange-2:#E85A26; --tulip:#FFD23F; --mint:#A8E6CF; --sky:#4A90E2; --rose:#F7A1A1;
  --night:#0B1526; --night-2:#132139; --cream:#F3EAD6; --cream-dim:rgba(243,234,214,.72);
  --r-card:20px; --r-btn:999px; --bw:2.5px;
  --shadow:0 6px 0 var(--ink); --shadow-lg:0 10px 0 var(--ink),0 22px 40px rgba(15,52,96,.18);
  --f-ui:'Plus Jakarta Sans',system-ui,-apple-system,'Segoe UI',sans-serif;
  --f-voice:'Fraunces',Georgia,'Times New Roman',serif;
  --ease:cubic-bezier(.2,.8,.2,1);
  --nav-h:64px;
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none!important}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html,body{margin:0;padding:0}
body{background:var(--paper);color:var(--ink);font-family:var(--f-ui);font-weight:500;line-height:1.55;-webkit-font-smoothing:antialiased;min-height:100dvh;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px;border-radius:8px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ---------- page transitions ---------- */
@view-transition{navigation:auto}
::view-transition-old(root){animation:vt-out .26s var(--ease) both}
::view-transition-new(root){animation:vt-in .42s var(--ease) both}
@keyframes vt-out{to{opacity:0;transform:translateY(-8px) scale(.995)}}
@keyframes vt-in{from{opacity:0;transform:translateY(12px)}}
.lk-nav{view-transition-name:lk-nav}
.lk-brand-mark{view-transition-name:lk-mark}
::view-transition-group(lk-nav),::view-transition-group(lk-mark){animation-duration:.4s}
/* animate content, not body: a transformed body would trap the fixed mobile tab bar */
body.lk-enter>main,body.lk-enter>.lk-foot{animation:page-in .5s var(--ease) backwards}
@keyframes page-in{from{opacity:0;transform:translateY(10px)}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  ::view-transition-group(*),::view-transition-old(*),::view-transition-new(*){animation:none!important}
}

/* ---------- nav ---------- */
.lk-nav{position:sticky;top:0;z-index:60;height:var(--nav-h);display:flex;align-items:center;gap:14px;padding:0 max(16px,env(safe-area-inset-left)) 0 max(16px,env(safe-area-inset-left));background:rgba(246,240,226,.86);backdrop-filter:saturate(1.4) blur(12px);-webkit-backdrop-filter:saturate(1.4) blur(12px);border-bottom:2px solid var(--ink-faint)}
.lk-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-weight:900;font-size:18px;letter-spacing:-.02em;color:var(--ink);flex:0 0 auto}
.lk-brand-mark{width:38px;height:38px;border-radius:50%;background:var(--sky);border:var(--bw) solid var(--ink);display:grid;place-items:center;overflow:hidden;box-shadow:0 3px 0 var(--ink)}
.lk-brand-mark img{width:100%;height:100%;object-fit:cover}
.lk-brand small{font-weight:700;opacity:.55;font-size:13px}
.lk-links{display:flex;gap:4px;margin-left:auto;align-items:center}
.lk-links a{text-decoration:none;font-weight:800;font-size:14px;padding:9px 14px;border-radius:var(--r-btn);color:var(--ink);transition:background .2s,transform .2s}
.lk-links a:hover{background:var(--paper-2)}
.lk-links a[aria-current="page"]{background:var(--ink);color:var(--paper)}
.lk-tools{display:flex;gap:8px;align-items:center}
.lk-iconbtn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:6px;min-width:42px;height:42px;padding:0 12px;border-radius:var(--r-btn);border:var(--bw) solid var(--ink);background:var(--paper);color:var(--ink);font-weight:900;font-size:13px;letter-spacing:.04em;text-decoration:none;cursor:pointer;box-shadow:0 3px 0 var(--ink);transition:transform .15s var(--ease),box-shadow .15s var(--ease)}
.lk-iconbtn:hover{transform:translateY(-2px);box-shadow:0 5px 0 var(--ink)}
.lk-iconbtn:active{transform:translateY(2px);box-shadow:0 1px 0 var(--ink)}
.lk-iconbtn svg{width:18px;height:18px}
.lk-badge{position:absolute;top:-7px;right:-7px;min-width:20px;height:20px;border-radius:10px;background:var(--orange);color:#fff;font-size:11px;font-weight:900;display:grid;place-items:center;padding:0 5px;border:2px solid var(--ink)}
.lk-badge[data-zero]{display:none}
.lk-burger{display:none}
@media (max-width:820px){
  /* backdrop-filter would make the header the containing block of the fixed tab bar */
  .lk-nav{backdrop-filter:none;-webkit-backdrop-filter:none;background:var(--paper)}
  .lk-links{position:fixed;left:12px;right:12px;bottom:calc(12px + env(safe-area-inset-bottom));top:auto;margin:0;justify-content:space-around;background:var(--paper);border:var(--bw) solid var(--ink);border-radius:22px;padding:6px;box-shadow:var(--shadow);z-index:70}
  .lk-links a{flex:1;text-align:center;padding:10px 4px;font-size:13px}
  .lk-tools{margin-left:auto}
  body{padding-bottom:calc(84px + env(safe-area-inset-bottom))}
  body.lk-fullscreen{padding-bottom:0}
}

/* dark contexts (rooms, 3D) share the shapes, invert the surface */
body.lk-dark{background:var(--night);color:var(--cream);color-scheme:dark}
body.lk-dark .lk-nav{background:rgba(11,21,38,.55);border-bottom-color:rgba(243,234,214,.10)}
body.lk-dark .lk-brand{color:var(--cream)}
body.lk-dark .lk-links a{color:var(--cream)}
body.lk-dark .lk-links a:hover{background:rgba(243,234,214,.10)}
body.lk-dark .lk-links a[aria-current="page"]{background:var(--cream);color:var(--night)}
@media (max-width:820px){body.lk-dark .lk-nav{background:var(--night)}body.lk-dark .lk-links{background:rgba(11,21,38,.92);border-color:rgba(243,234,214,.25);box-shadow:0 6px 0 rgba(0,0,0,.4)}}
body.lk-dark .lk-iconbtn{background:rgba(11,21,38,.6);color:var(--cream);border-color:rgba(243,234,214,.55);box-shadow:0 3px 0 rgba(0,0,0,.45)}

/* ---------- type ---------- */
.lk-display{font-weight:900;text-transform:uppercase;letter-spacing:-.035em;line-height:.9;margin:0}
.lk-h2{font-weight:900;font-size:clamp(28px,4.4vw,46px);letter-spacing:-.03em;line-height:1;margin:0 0 12px}
.lk-kicker{display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-btn);background:var(--tulip);color:var(--ink);font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.14em;border:2px solid var(--ink)}
.lk-kicker i{width:7px;height:7px;border-radius:50%;background:var(--ink);display:block}
.lk-voice{font-family:var(--f-voice);font-style:italic;font-weight:400;font-variation-settings:"SOFT" 100,"WONK" 1}
.lk-muted{color:var(--ink-soft)}
body.lk-dark .lk-muted{color:var(--cream-dim)}

/* ---------- buttons ---------- */
.btn{--bg:var(--paper);--fg:var(--ink);display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 26px;border-radius:var(--r-btn);background:var(--bg);color:var(--fg);border:var(--bw) solid var(--ink);font-weight:900;font-size:14px;letter-spacing:.06em;text-transform:uppercase;text-decoration:none;cursor:pointer;box-shadow:var(--shadow);transition:transform .16s var(--ease),box-shadow .16s var(--ease),background .2s;white-space:nowrap}
.btn:hover{transform:translateY(-3px);box-shadow:0 9px 0 var(--ink)}
.btn:active{transform:translateY(3px);box-shadow:0 2px 0 var(--ink)}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}
.btn-orange{--bg:var(--orange);--fg:#fff}
.btn-ink{--bg:var(--ink);--fg:var(--paper)}
.btn-tulip{--bg:var(--tulip)}
.btn-sm{padding:9px 16px;font-size:12px;box-shadow:0 4px 0 var(--ink)}
.btn-sm:hover{box-shadow:0 6px 0 var(--ink)}
.btn .arr{transition:transform .2s var(--ease)}
.btn:hover .arr{transform:translateX(4px)}

/* ---------- cards & chips ---------- */
.card{background:var(--paper);border:var(--bw) solid var(--ink);border-radius:var(--r-card);box-shadow:var(--shadow-lg)}
.chip{display:inline-flex;align-items:center;gap:6px;padding:7px 13px;border-radius:var(--r-btn);border:2px solid var(--ink);background:var(--paper);color:var(--ink);font-weight:800;font-size:13px;cursor:pointer;transition:transform .15s,background .15s;text-decoration:none}
.chip:hover{transform:translateY(-2px);background:var(--paper-2)}
.chip[aria-pressed="true"]{background:var(--ink);color:var(--paper)}
.halftone{position:absolute;inset:0;pointer-events:none;background-image:radial-gradient(var(--ink) 1.4px,transparent 1.5px);background-size:22px 22px;opacity:.08}

/* ---------- toast ---------- */
.lk-toast{position:fixed;left:50%;bottom:calc(110px + env(safe-area-inset-bottom));transform:translate(-50%,20px);opacity:0;z-index:120;background:var(--ink);color:var(--paper);padding:12px 18px;border-radius:14px;font-weight:700;font-size:14px;box-shadow:0 8px 24px rgba(0,0,0,.25);transition:opacity .25s,transform .25s var(--ease);pointer-events:none;max-width:min(92vw,460px);text-align:center}
.lk-toast.show{opacity:1;transform:translate(-50%,0)}
@media (min-width:821px){.lk-toast{bottom:28px}}

/* ---------- words drawer (schriftje) ---------- */
.lk-drawer{position:fixed;inset:0;z-index:110;display:none}
.lk-drawer.open{display:block}
.lk-drawer-bg{position:absolute;inset:0;background:rgba(11,21,38,.45);backdrop-filter:blur(3px);animation:fade .2s both}
.lk-drawer-panel{position:absolute;top:0;right:0;bottom:0;width:min(440px,100vw);background:var(--paper);color:var(--ink);border-left:var(--bw) solid var(--ink);display:flex;flex-direction:column;animation:slide-in .32s var(--ease) both;color-scheme:light}
@keyframes slide-in{from{transform:translateX(100%)}}
@keyframes fade{from{opacity:0}}
.lk-drawer-head{display:flex;align-items:center;gap:10px;padding:18px 18px 12px;border-bottom:2px solid var(--ink-faint)}
.lk-drawer-head h2{margin:0;font-size:22px;font-weight:900;letter-spacing:-.02em;flex:1}
.lk-drawer-tabs{display:flex;gap:6px;padding:12px 18px 0}
.lk-drawer-body{flex:1;overflow:auto;padding:14px 18px 24px}
.lk-word{display:grid;grid-template-columns:1fr auto;gap:2px 10px;padding:12px 14px;border:2px solid var(--ink);border-radius:14px;margin-bottom:10px;background:#fffaf0}
.lk-word b{font-size:17px;font-weight:900}
.lk-word span{grid-column:1;color:var(--ink-soft);font-size:14px}
.lk-word .acts{grid-row:1 / span 2;grid-column:2;display:flex;gap:6px;align-items:center}
.lk-word .acts button{width:34px;height:34px;border-radius:50%;border:2px solid var(--ink);background:var(--paper);cursor:pointer;display:grid;place-items:center}
.lk-word .acts svg{width:15px;height:15px}
.lk-empty{text-align:center;padding:40px 12px;color:var(--ink-soft)}
.lk-empty img{width:120px;margin:0 auto 12px}
.lk-flash{perspective:900px;margin:10px 0 18px}
.lk-flash-card{position:relative;height:220px;cursor:pointer;transform-style:preserve-3d;transition:transform .6s var(--ease)}
.lk-flash-card.flip{transform:rotateY(180deg)}
.lk-flash-face{position:absolute;inset:0;border:var(--bw) solid var(--ink);border-radius:20px;background:#fffaf0;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:20px;text-align:center;backface-visibility:hidden;box-shadow:var(--shadow)}
.lk-flash-face.back{transform:rotateY(180deg);background:var(--mint)}
.lk-flash-face b{font-size:28px;font-weight:900;letter-spacing:-.02em}
.lk-flash-face small{margin-top:10px;color:var(--ink-soft);font-weight:700;font-size:12px;text-transform:uppercase;letter-spacing:.12em}
.lk-flash-row{display:flex;gap:10px;justify-content:center}

/* ---------- level picker (shared) ---------- */
.level{padding:20px}
.level p{margin:0 0 12px}
.level .small{margin-top:-6px;font-size:14px;font-weight:600}
.level-chips{display:flex;flex-wrap:wrap;gap:8px}
.level-chips .lv{font-size:11px;font-weight:900;background:var(--tulip);color:var(--ink);border:1.5px solid var(--ink);border-radius:6px;padding:1px 5px}
.level-chips .chip[aria-pressed="true"] .lv{background:var(--orange);color:#fff}
.level-ok{margin:12px 0 0!important;font-weight:800}

/* ---------- footer ---------- */
.lk-foot{position:relative;margin-top:80px;padding:40px 20px 36px;border-top:2px solid var(--ink-faint);font-size:13px;font-weight:700;color:var(--ink-soft)}
.lk-foot-in{max-width:1120px;margin:0 auto;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between}
.lk-foot a{color:var(--ink);text-decoration:none;border-bottom:2px solid transparent}
.lk-foot a:hover{border-bottom-color:var(--orange)}
.lk-foot nav{display:flex;flex-wrap:wrap;gap:8px 18px}

/* ---------- utilities ---------- */
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.reveal.in{opacity:1;transform:none}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
@keyframes wiggle{0%,100%{transform:rotate(0)}25%{transform:rotate(-4deg)}75%{transform:rotate(4deg)}}
@keyframes pop{0%{transform:scale(.6);opacity:0}70%{transform:scale(1.06)}100%{transform:scale(1);opacity:1}}