/* ============================================================
   FILUM ARTS — Design Lab configurator
   Loaded after styles.css on the Design Lab page
   ============================================================ */

/* ---------- LAB HERO ---------- */
.lab-hero { background: linear-gradient(120deg, var(--espresso-deep), var(--espresso)); color: var(--on-dark); padding-block: clamp(48px,7vw,88px) clamp(40px,5vw,64px); position: relative; overflow: hidden; text-align: center; }
.lab-hero::after { content: ""; position: absolute; top: -30%; left: 50%; transform: translateX(-50%); width: 620px; height: 620px; background: radial-gradient(circle, rgba(184,135,70,.18), transparent 70%); pointer-events: none; }
.lab-hero .wrap { position: relative; z-index: 1; }
.lab-hero h1 { color: #fff; margin-top: var(--s4); }
.lab-hero .eyebrow { color: var(--brass-light); }
.lab-hero .eyebrow::before { background: var(--brass-light); }
.lab-hero .lead { color: var(--on-dark); margin: var(--s4) auto 0; max-width: 58ch; }

/* ---------- LAYOUT ---------- */
.lab-shell { display: grid; grid-template-columns: 1.35fr .9fr; gap: clamp(28px,4vw,56px); align-items: start; }
.lab-steps { display: grid; gap: var(--s7); }
.lab-step { scroll-margin-top: calc(var(--nav-h) + 20px); }
.step-head { display: flex; align-items: baseline; gap: 14px; margin-bottom: var(--s5); }
.step-num { font-family: var(--display); font-size: 1.1rem; width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%; background: var(--espresso); color: var(--brass-light); display: grid; place-items: center; }
.step-head h2 { font-size: clamp(1.5rem,2.6vw,2rem); }
.step-head p { font-size: .92rem; color: var(--ink-soft); margin-top: 2px; }

/* ---------- STUDIO PROMISE ---------- */
.lab-promise { display: flex; gap: var(--s4); align-items: flex-start; background: var(--parchment); border: 1px solid var(--line); border-left: 3px solid var(--brass); border-radius: var(--radius); padding: var(--s5); }
.lab-promise svg { width: 26px; height: 26px; flex-shrink: 0; color: var(--brass-deep); margin-top: 2px; }
.lab-promise p { font-size: .92rem; line-height: 1.65; color: var(--ink-soft); }
.lab-promise strong { color: var(--espresso); }

/* ---------- OPTION GRIDS ---------- */
.opt-grid { display: grid; gap: var(--s4); }
.opt-grid.cols-2 { grid-template-columns: 1fr 1fr; }
.opt-grid.cols-3 { grid-template-columns: repeat(3,1fr); }
.opt-grid.cols-4 { grid-template-columns: repeat(4,1fr); }
.opt-grid.cols-5 { grid-template-columns: repeat(5,1fr); gap: var(--s3); }
@media (max-width: 900px) { .opt-grid.cols-5 { grid-template-columns: repeat(3,1fr); } }
@media (max-width: 600px) { .opt-grid.cols-3, .opt-grid.cols-4, .opt-grid.cols-5 { grid-template-columns: 1fr 1fr; } .opt-grid.cols-2 { grid-template-columns: 1fr; } }

/* Card-style option (tools, packaging) */
.opt {
  text-align: left; background: var(--white); border: 1.5px solid var(--line);
  border-radius: var(--radius); padding: var(--s4); cursor: pointer;
  transition: border-color var(--fast), box-shadow var(--med) var(--ease), transform var(--fast); position: relative;
  display: flex; flex-direction: column; gap: 4px;
}
.opt:hover { border-color: var(--brass); transform: translateY(-2px); box-shadow: var(--sh-1); }
.opt.selected { border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }
.opt.selected::after { content: "✓"; position: absolute; top: 10px; right: 12px; width: 22px; height: 22px; border-radius: 50%; background: var(--brass); color: var(--espresso-deep); font-size: .8rem; font-weight: 700; display: grid; place-items: center; }
.opt .opt-ico { width: 38px; height: 38px; color: var(--brass-deep); margin-bottom: var(--s2); }
.opt .opt-ico svg { width: 100%; height: 100%; }
.opt-name { font-family: var(--label); font-weight: 600; font-size: .95rem; color: var(--espresso); }
.opt-desc { font-size: .8rem; color: var(--ink-soft); line-height: 1.4; }
.opt-price { font-family: var(--label); font-size: .8rem; font-weight: 600; color: var(--brass-deep); margin-top: 4px; }

/* Swatch-style option (material, color) */
.opt-swatch { aspect-ratio: 1; border-radius: var(--radius); cursor: pointer; position: relative; border: 1.5px solid rgba(0,0,0,.08); box-shadow: var(--sh-1); transition: transform var(--med) var(--ease), box-shadow var(--med); overflow: hidden; }
.opt-swatch:hover { transform: translateY(-4px) scale(1.02); box-shadow: var(--sh-2); }
.opt-swatch.selected { box-shadow: 0 0 0 3px var(--ivory), 0 0 0 5.5px var(--brass); }
.opt-swatch .sw-label { position: absolute; left: 0; right: 0; bottom: 0; padding: 16px 10px 8px; font-family: var(--label); font-size: .7rem; font-weight: 600; color: #fff; background: linear-gradient(transparent, rgba(0,0,0,.6)); line-height: 1.2; }
.opt-swatch.selected .sw-label::after { content: " ✓"; }
.opt-swatch .sw-label small { display: block; font-size: .62rem; font-weight: 500; opacity: .85; margin-top: 2px; line-height: 1.25; }
.addon-hint { font-family: var(--label); font-size: .8rem; font-weight: 600; color: var(--ink-soft); margin: var(--s5) 0 var(--s3); }

/* Burl library dropdown */
.wood-library { margin-top: var(--s4); display: grid; gap: 10px; max-width: 520px; }
.wood-library label { font-family: var(--label); font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.wood-library select { font-family: var(--body); font-size: .95rem; color: var(--espresso); background: var(--white); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; min-height: 48px; cursor: pointer; transition: border-color var(--fast), box-shadow var(--fast); }
.wood-library select:focus { outline: none; border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }

/* Wood story card */
.wood-info { margin-top: var(--s4); background: var(--white); border: 1px solid var(--line); border-left: 3px solid var(--brass); border-radius: var(--radius); padding: var(--s4) var(--s5); max-width: 560px; }
.wi-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--s4); flex-wrap: wrap; }
.wi-name { font-family: var(--display); font-size: 1.15rem; color: var(--espresso); }
.wi-origin { font-family: var(--label); font-size: .68rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--brass-deep); }
.wi-desc { font-size: .88rem; color: var(--ink-soft); line-height: 1.6; margin-top: 6px; }

/* Vision notes textarea */
.engrave-field textarea { font-family: var(--body); font-size: 1rem; color: var(--espresso); background: var(--white); border: 1.5px solid var(--line); border-radius: 10px; padding: 13px 15px; resize: vertical; min-height: 110px; transition: border-color var(--fast), box-shadow var(--fast); }
.engrave-field textarea:focus { outline: none; border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }

/* Custom resin color wheel */
.wheel-row { display: flex; gap: var(--s5); align-items: center; flex-wrap: wrap; }
.color-wheel { width: 190px; height: 190px; flex-shrink: 0; border-radius: 50%; position: relative; cursor: crosshair; touch-action: none; border: 1px solid var(--line); box-shadow: var(--sh-1);
  background:
    radial-gradient(circle, #fff 0%, rgba(255,255,255,0) 72%),
    conic-gradient(hsl(0,80%,50%) 0deg, hsl(60,80%,50%) 60deg, hsl(120,80%,50%) 120deg, hsl(180,80%,50%) 180deg, hsl(240,80%,50%) 240deg, hsl(300,80%,50%) 300deg, hsl(360,80%,50%) 360deg); }
.wheel-dot { position: absolute; width: 16px; height: 16px; border-radius: 50%; border: 2.5px solid #fff; box-shadow: 0 0 0 1.5px rgba(0,0,0,.35); transform: translate(-50%,-50%); pointer-events: none; opacity: 0; transition: opacity var(--fast); }
.wheel-side { display: grid; gap: 10px; min-width: 210px; max-width: 320px; }
.wheel-side label { font-family: var(--label); font-size: .72rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.wheel-side input[type=range] { accent-color: var(--brass); min-height: 24px; }
.wheel-out { display: flex; align-items: center; gap: 10px; font-family: var(--label); font-weight: 600; font-size: .92rem; color: var(--espresso); }
.wheel-chip { width: 34px; height: 34px; border-radius: 10px; border: 1px solid var(--line); background: transparent; flex-shrink: 0; }
.wheel-note { font-size: .76rem; color: var(--ink-faint); line-height: 1.5; }

/* Chip-style option (hardware, shape) */
.opt-chip { display: inline-flex; align-items: center; gap: 9px; padding: 12px 18px; border-radius: 999px; background: var(--white); border: 1.5px solid var(--line); cursor: pointer; font-family: var(--label); font-weight: 600; font-size: .9rem; color: var(--espresso); transition: border-color var(--fast), box-shadow var(--fast), transform var(--fast); }
.opt-chip:hover { border-color: var(--brass); transform: translateY(-2px); }
.opt-chip.selected { border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }
.opt-chip .dot { width: 16px; height: 16px; border-radius: 50%; box-shadow: inset 0 0 0 1px rgba(0,0,0,.15); }
.chip-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Engraving */
.engrave-field { display: grid; gap: 10px; max-width: 460px; }
.engrave-field label { font-family: var(--label); font-size: .78rem; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--ink-soft); }
.engrave-field input { font-family: var(--body); font-size: 1rem; background: var(--white); border: 1.5px solid var(--line); border-radius: 10px; padding: 13px 15px; min-height: 48px; transition: border-color var(--fast), box-shadow var(--fast); }
.engrave-field input:focus { outline: none; border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }
.engrave-preview { margin-top: var(--s4); background: var(--espresso); border-radius: var(--radius); padding: var(--s6) var(--s5); text-align: center; position: relative; overflow: hidden; }
.engrave-preview::before { content: ""; position: absolute; inset: 8px; border: 1px solid rgba(214,169,100,.3); border-radius: 10px; }
.engrave-preview .ep-text { font-family: var(--display); font-style: italic; font-size: clamp(1.4rem,3vw,2rem); color: var(--brass-light); position: relative; word-break: break-word; }
.engrave-preview .ep-cap { font-family: var(--label); font-size: .68rem; letter-spacing: .16em; text-transform: uppercase; color: var(--on-dark-soft); margin-top: 8px; position: relative; }

/* Steps that don't apply to the chosen style (pure resin / pure wood pieces) */
.lab-step.step-skip { opacity: .45; transition: opacity var(--med) var(--ease); }
.lab-step.step-skip .opt-grid, .lab-step.step-skip .chip-row, .lab-step.step-skip .wood-library, .lab-step.step-skip .wood-info, .lab-step.step-skip .wheel-row, .lab-step.step-skip .addon-hint { pointer-events: none; filter: grayscale(.4); }
.lab-step.step-skip .step-head p::after { content: " Not part of your chosen style — change Style to bring it back."; font-weight: 600; color: var(--brass-deep); }

/* ---------- STICKY SUMMARY ---------- */
.lab-aside { position: sticky; top: calc(var(--nav-h) + 16px); display: grid; gap: var(--s4); }
.lab-canvas { aspect-ratio: 4/5; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--sh-3); border: 1px solid var(--line); position: relative; background: var(--parchment); transition: background var(--med) var(--ease); }
.lab-canvas svg[data-lab-piece] { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.lab-canvas .ph { position: absolute; inset: 0; }
.summary-card { background: var(--white); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: var(--s5); box-shadow: var(--sh-2); }
.summary-card h3 { font-size: 1.3rem; }
.summary-card .sub { font-family: var(--label); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--brass-deep); }
.summary-list { margin: var(--s4) 0; display: grid; gap: 2px; }
.ls-row { display: flex; justify-content: space-between; gap: var(--s4); padding: 8px 0; font-size: .88rem; border-bottom: 1px dashed var(--line); }
.ls-row span:first-child { color: var(--ink-soft); }
.ls-row span:last-child { font-weight: 600; color: var(--espresso); text-align: right; }
.summary-total { display: flex; justify-content: space-between; align-items: baseline; margin-top: var(--s4); padding-top: var(--s4); border-top: 1.5px solid var(--line); }
.summary-total .st-label { font-family: var(--label); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft); }
.summary-total .st-num { font-family: var(--display); font-size: 2rem; color: var(--espresso); }
.summary-card .btn { width: 100%; justify-content: center; margin-top: var(--s4); }
.rf-fields { display: grid; gap: 10px; margin-top: var(--s5); }
.rf-fields input { font-family: var(--body); font-size: .95rem; color: var(--espresso); background: var(--ivory); border: 1.5px solid var(--line); border-radius: 10px; padding: 12px 14px; min-height: 46px; transition: border-color var(--fast), box-shadow var(--fast); }
.rf-fields input:focus { outline: none; border-color: var(--brass); box-shadow: 0 0 0 3px rgba(184,135,70,.18); }
.reserve-error { color: #8a3340; font-size: .85rem; margin-top: var(--s3); line-height: 1.5; }
.reserve-error a { color: inherit; font-weight: 600; }
.reserve-ok { background: var(--parchment); border: 1px solid var(--line); border-left: 3px solid var(--brass); border-radius: 10px; padding: var(--s4); font-size: .9rem; line-height: 1.6; margin-top: var(--s3); color: var(--ink-soft); }
.reserve-ok strong { color: var(--espresso); }
.form-error { color: #8a3340; font-size: .9rem; line-height: 1.5; }
.form-error a { color: inherit; font-weight: 600; }
.summary-note { font-size: .76rem; color: var(--ink-faint); margin-top: var(--s4); line-height: 1.5; }

@media (max-width: 980px) {
  .lab-shell { grid-template-columns: 1fr; }
  .lab-aside { position: static; }
  .lab-canvas { max-width: 360px; margin-inline: auto; }
}