/* 3D-ontwerper: viewer links (sticky), keuzes rechts. Op gsm staat de viewer bovenaan vast terwijl u door de keuzes scrolt. */
.intro { padding: clamp(40px, 6vw, 72px) 0 10px; }
.intro h1 { font-size: clamp(2.6rem, 1.6rem + 4vw, 4.4rem); margin-bottom: 18px; }
.intro .lede { max-width: 62ch; }

/* Start models */
.presets { padding: 18px 0 26px; }
.presets__t { font: 500 .8rem/1.4 var(--sans); text-transform: uppercase; letter-spacing: .22em; color: var(--muted); margin-bottom: 14px; }
.presets__list { display: grid; grid-template-columns: repeat(6, 1fr); gap: 10px; }
.preset { display: grid; justify-items: center; gap: 2px; padding: 14px 8px 12px; background: #FBF8F2; border: 1px solid var(--line); color: var(--sapphire); font: 500 1rem/1.2 var(--sans); cursor: pointer; transition: border-color .15s, background .15s; }
.preset svg { width: 38px; height: 38px; fill: none; stroke: var(--gold); stroke-width: 1.4; margin-bottom: 6px; }
.preset small { font-size: .78rem; color: var(--muted); letter-spacing: .02em; }
.preset:hover { border-color: var(--gold); background: #fff; }
.preset[aria-pressed="true"] { border-color: var(--sapphire); box-shadow: inset 0 0 0 1px var(--sapphire); }
@media (max-width: 900px) { .presets__list { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) {
  .presets__list { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; margin-inline: -16px; padding: 0 16px 6px; gap: 8px; scrollbar-width: none; }
  .presets__list::-webkit-scrollbar { display: none; }
  .preset { flex: 0 0 31%; scroll-snap-align: start; padding: 10px 6px; }
  .preset svg { width: 30px; height: 30px; margin-bottom: 2px; }
}

/* Layout */
.cfg { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(340px, 1fr); gap: clamp(20px, 3vw, 44px); align-items: start; padding-bottom: clamp(48px, 7vw, 96px); }
.viewer { position: sticky; top: 92px; height: min(calc(100vh - 116px), 760px); min-height: 440px; background: linear-gradient(#fbf8f2, #e9e0d1); border: 1px solid var(--line); overflow: hidden; touch-action: none; }
.viewer canvas { display: block; width: 100%; height: 100%; cursor: grab; outline: none; }
.viewer canvas:active { cursor: grabbing; }
.viewer.is-off canvas { display: none; }
[hidden] { display: none !important; }
.viewer__msg { position: absolute; inset: 0; display: grid; place-items: center; margin: 0; padding: 24px; text-align: center; color: var(--muted); font: italic 400 1.3rem/1.4 var(--serif); }
.viewer__tag { position: absolute; left: 14px; top: 12px; margin: 0; font: 500 .78rem/1.3 var(--sans); letter-spacing: .12em; text-transform: uppercase; color: var(--sapphire); background: rgba(251, 248, 242, .82); padding: 6px 10px; pointer-events: none; font-variant-numeric: lining-nums; }
.viewer__hint { position: absolute; left: 50%; bottom: 66px; transform: translateX(-50%); margin: 0; white-space: nowrap; font-size: .85rem; color: var(--sapphire); background: rgba(251, 248, 242, .88); padding: 6px 14px; border-radius: 999px; pointer-events: none; transition: opacity .5s; }
.viewer__hint.is-gone { opacity: 0; }
.t-touch { display: none; }
@media (hover: none) { .t-touch { display: inline; } .t-mouse { display: none; } }
.viewer__tools { position: absolute; right: 12px; bottom: 12px; left: 12px; display: flex; justify-content: flex-end; gap: 8px; }
.viewer__tools button { min-width: 44px; height: 44px; padding: 0; display: grid; place-items: center; background: rgba(251, 248, 242, .92); border: 1px solid var(--line); color: var(--sapphire); font: 400 1.5rem/1 var(--sans); cursor: pointer; }
.viewer__tools button.txt { padding: 0 14px; font: 500 .78rem/1 var(--sans); letter-spacing: .12em; text-transform: uppercase; }
.viewer__tools button:hover { border-color: var(--gold); }
.viewer__tools svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; }
.viewer__tools button[aria-pressed="true"] { background: var(--sapphire); color: #fff; border-color: var(--sapphire); }
.viewer.is-off .viewer__tools, .viewer.is-off .viewer__hint { display: none; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { background: #FBF8F2; border: 1px solid var(--line); padding: 20px 22px 8px; }
.step[hidden], [data-when][hidden] { display: none; }
.step__t { counter-increment: step; font-size: 1.6rem; color: var(--sapphire); margin-bottom: 14px; display: flex; align-items: baseline; gap: 12px; }
.step__t::before { content: counter(step); font: italic 500 1.25rem/1 var(--serif); color: var(--gold); min-width: 1ch; }
fieldset { border: 0; padding: 0; margin: 0 0 16px; min-width: 0; }
legend, .field > label { font: 500 .78rem/1.4 var(--sans); text-transform: uppercase; letter-spacing: .16em; color: var(--muted); padding: 0; margin-bottom: 8px; display: flex; justify-content: space-between; gap: 10px; width: 100%; }
.field { margin-bottom: 16px; }
.field output { color: var(--sapphire); letter-spacing: .04em; text-transform: none; font-size: .95rem; font-variant-numeric: lining-nums; text-align: right; }
.opt-l { text-transform: none; letter-spacing: 0; font-weight: 400; }
.hint { font-size: .88rem; line-height: 1.5; color: var(--muted); margin: 8px 0 0; }
.hint:empty { display: none; }

.opts { display: grid; gap: 8px; }
.opts--2 { grid-template-columns: repeat(2, 1fr); }
.opts--3 { grid-template-columns: repeat(3, 1fr); }
.opts--4 { grid-template-columns: repeat(4, 1fr); }
.opts--5 { grid-template-columns: repeat(5, 1fr); }
.opt { position: relative; display: block; }
.opt input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.opt span { display: grid; justify-items: center; align-content: center; gap: 2px; min-height: 52px; height: 100%; padding: 8px 6px; text-align: center; background: #fff; border: 1px solid rgba(169, 132, 75, .35); font: 500 .92rem/1.2 var(--sans); color: var(--ink); cursor: pointer; transition: border-color .15s, box-shadow .15s; }
.opt small { font-size: .74rem; font-weight: 400; color: var(--muted); }
.opt span:hover { border-color: var(--gold); }
.opt input:checked + span { border-color: var(--sapphire); box-shadow: inset 0 0 0 1px var(--sapphire); color: var(--sapphire); background: #F4F1EA; }
.opt input:focus-visible + span { outline: 2px solid var(--gold); outline-offset: 2px; }
.opt input:disabled + span { opacity: .38; cursor: not-allowed; text-decoration: line-through; }
.opt svg { width: 40px; height: 24px; fill: none; stroke: var(--gold); stroke-width: 1.3; stroke-linejoin: round; margin-bottom: 4px; }
.opts--2 .opt svg { width: 28px; height: 28px; }
.opt--sw span { font-size: .84rem; }
.sw { display: block; width: 26px; height: 26px; border-radius: 50%; margin-bottom: 5px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, .12); }
.sw--geel { background: radial-gradient(circle at 35% 30%, #fff3c7, #e6b04f 55%, #a87a2a); }
.sw--wit { background: radial-gradient(circle at 35% 30%, #fff, #d7dade 55%, #9ba1a8); }
.sw--rose { background: radial-gradient(circle at 35% 30%, #ffe6dc, #e2a28a 55%, #a96a55); }
.sw--zilver { background: radial-gradient(circle at 35% 30%, #fff, #e3e3e3 55%, #a4a4a4); }
.sw--diamant { background: conic-gradient(from 20deg, #fff, #dfe9f3, #fff, #e9e2f5, #fff, #dff3ec, #fff); }
.sw--saffier { background: radial-gradient(circle at 35% 30%, #9db6ff, #2849b8 60%, #142a73); }
.sw--robijn { background: radial-gradient(circle at 35% 30%, #ff9db0, #c3163d 60%, #6d0a1f); }
.sw--smaragd { background: radial-gradient(circle at 35% 30%, #a6f0c9, #1f9a5b 60%, #0b5230); }
.sw--roze { background: radial-gradient(circle at 35% 30%, #fff0f5, #f2a3bd 60%, #c76b8b); }

input[type="range"] { width: 100%; accent-color: var(--sapphire); height: 32px; margin: 0; }
select, .field input[type="text"], .send input, .send textarea { width: 100%; min-height: 48px; padding: 10px 12px; font: 400 1rem/1.3 var(--sans); color: var(--ink); background: #fff; border: 1px solid rgba(169, 132, 75, .5); border-radius: 0; }
select:focus, .field input:focus, .send input:focus, .send textarea:focus { outline: 2px solid var(--gold); outline-offset: 1px; border-color: var(--gold); }

/* Design sheet */
.sheet { margin-top: 14px; background: var(--sapphire); color: #EEE8DD; padding: 26px 24px 24px; }
.sheet .eyebrow { color: var(--gold-soft); }
.sheet .eyebrow::before { background: var(--gold-soft); }
.sheet h2 { color: #fff; font-size: 2rem; margin-bottom: 16px; }
.fiche { margin: 0 0 16px; border-top: 1px solid rgba(205, 179, 133, .35); }
.fiche > div { display: grid; grid-template-columns: 9.5em 1fr; gap: 12px; padding: 8px 0; border-bottom: 1px solid rgba(205, 179, 133, .2); font-size: .95rem; line-height: 1.45; }
.fiche dt { color: var(--gold-soft); }
.fiche dd { margin: 0; color: #fff; font-variant-numeric: lining-nums; }
.sheet__note { font-size: .86rem; line-height: 1.55; color: #CFC8BA; }
.sheet__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 24px; margin-top: 18px; }
.sheet .btn { background: var(--gold); border-color: var(--gold); color: var(--sapphire); }
.sheet .btn:hover { background: transparent; color: #fff; }
.sheet button.link { background: none; border: 0; border-bottom: 1px solid var(--gold); color: #fff; cursor: pointer; padding: 14px 0; }
.sheet .hint { color: #D8D1C3; word-break: break-all; }
.sendbox { margin-bottom: clamp(48px, 7vw, 96px); padding: clamp(24px, 4vw, 44px); background: #FBF8F2; border: 1px solid var(--line); }
.send { display: grid; grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr); gap: 8px clamp(24px, 4vw, 56px); align-items: start; }
.send > h3, .send > p { grid-column: 1; }
.send > .send__grid, .send > .send__err, .send > .btn, .send > .hint { grid-column: 2; }
.send > .send__grid { grid-row: 1 / span 3; margin: 0; }
.send h3 { color: var(--sapphire); font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.2rem); margin-bottom: 8px; scroll-margin-top: 100px; }
.send > p { color: var(--muted); }
.send__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.send label { display: grid; gap: 6px; font: 500 .78rem/1.4 var(--sans); text-transform: uppercase; letter-spacing: .14em; color: var(--muted); }
.send .full { grid-column: 1 / -1; }
.send .btn { justify-self: start; margin-top: 4px; }
.send__err { background: #F8E3DF; color: #7A1E12; padding: 10px 12px; font-size: .92rem; margin: 0; }
@media (max-width: 760px) {
  .send { grid-template-columns: 1fr; }
  .send > * { grid-column: 1 !important; grid-row: auto !important; }
}

.how { padding: 0 0 clamp(56px, 8vw, 100px); }
.how h2 { color: var(--sapphire); margin-bottom: 22px; }
.how ol { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border-top: 1px solid var(--line); counter-reset: how; }
.how li { counter-increment: how; padding: 22px 24px 8px 0; color: var(--muted); }
.how li::before { content: counter(how, upper-roman); display: block; font: italic 500 1.5rem/1 var(--serif); color: var(--gold); margin-bottom: 10px; }
.how strong { color: var(--ink); font-weight: 500; }

.print-sheet { display: none; }

@media (max-width: 900px) {
  .cfg { grid-template-columns: 1fr; gap: 0; }
  .viewer { top: 76px; z-index: 5; height: 42vh; height: 42svh; min-height: 250px; margin-inline: -16px; border-inline: 0; }
  .panel { padding-top: 14px; }
  .viewer__hint { bottom: 56px; font-size: .8rem; }
  .viewer__tools { right: 10px; bottom: 10px; gap: 6px; }
  .viewer__tools button { min-width: 40px; height: 40px; font-size: 1.3rem; }
  .viewer__tag { left: 10px; top: 10px; font-size: .7rem; padding: 5px 8px; }
  .how ol { grid-template-columns: 1fr; }
  .how li { padding: 18px 0 4px; border-bottom: 1px solid var(--line); }
}
@media (max-width: 480px) {
  .step { padding: 16px 14px 4px; }
  .opts--5 { grid-template-columns: repeat(3, 1fr); }
  .opt span { padding: 8px 2px; font-size: .84rem; }
  .opt--sw span { font-size: .78rem; }
  .send__grid { grid-template-columns: 1fr; }
  .sendbox { margin-inline: -16px; border-inline: 0; padding-inline: 16px; }
  .fiche > div { grid-template-columns: 1fr; gap: 0; }
  .viewer__tools button.txt { padding: 0 10px; letter-spacing: .06em; }
  .sheet { margin-inline: -16px; padding-inline: 16px; }
}

@media (max-width: 360px) { .opts--4 { grid-template-columns: repeat(2, 1fr); } }
/* Phone: while typing, keep the field visible under the sticky viewer and make the viewer lower. */
@media (max-width: 900px) {
  .panel input[type="text"], .panel select { scroll-margin-top: calc(76px + 30svh + 16px); }
  .cfg:has(input[type="text"]:focus) .viewer { height: 30svh; min-height: 200px; }
}

@media print {
  @page { margin: 14mm; }
  body { background: #fff; }
  .hdr, .skip, .intro, .presets, .viewer, .steps, .sheet__actions, .sendbox, .how, .ftr, #link-msg, body > div[style] { display: none !important; }
  .cfg { display: block; padding: 0; width: auto; }
  .print-sheet { display: block; }
  .print-sheet__brand { font-size: 10pt; color: #555; border-bottom: 1px solid #aaa; padding-bottom: 6pt; }
  .print-sheet img { width: 100%; max-height: 120mm; object-fit: contain; margin: 6pt 0; }
  .print-sheet__meta { font-size: 9pt; color: #555; word-break: break-all; }
  .sheet { background: #fff; color: #000; padding: 0; margin: 0; }
  .sheet h2, .fiche dd { color: #000; }
  .fiche dt, .sheet .eyebrow { color: #7a5f33; }
  .fiche > div { border-color: #ccc; }
  .sheet__note { color: #444; }
}