.configurator-shell{display:grid;grid-template-columns:320px 1fr 340px;grid-template-rows:1fr;height:calc(100vh - 90px);min-height:600px;background:var(--light-gray)}.dock{background:var(--white);box-shadow:var(--shadow);overflow-y:auto;z-index:5}.dock-left{grid-column:1;border-right:1px solid var(--border-color)}.dock-right{grid-column:3;border-left:1px solid var(--border-color)}.viewport{position:relative;grid-column:2;overflow:hidden;background:radial-gradient(circle at 50% 40%,#2a2a2a,#141414)}#three-canvas{display:block;width:100%;height:100%;touch-action:none}.toolbar{position:absolute;top:16px;left:50%;transform:translateX(-50%);display:flex;gap:8px;padding:8px;background:rgba(255,255,255,0.92);backdrop-filter:blur(8px);border-radius:10px;box-shadow:var(--shadow);z-index:10}.viewport-status{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;color:var(--white);background:radial-gradient(circle at 50% 40%,#2a2a2a,#141414);z-index:20;transition:opacity .4s ease}.viewport-status.is-hidden{opacity:0;pointer-events:none}.viewport-status__spinner{width:38px;height:38px;border:3px solid rgba(212,175,55,0.25);border-top-color:var(--accent-color);border-radius:50%;animation:cfg-spin 0.9s linear infinite}@keyframes cfg-spin{to{transform:rotate(360deg)}}.panel{padding:18px 20px;border-bottom:1px solid var(--border-color)}.panel__title{font-family:var(--font-secondary);font-size:1.05rem;color:var(--primary-color);margin-bottom:14px}.panel__row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px}.panel__label{font-size:.92rem;color:var(--text-dark)}.cfg-input{flex:1;padding:8px 10px;border:2px solid var(--border-color);border-radius:6px;font-size:.92rem;font-family:var(--font-primary);transition:var(--transition)}.cfg-input:focus{outline:none;border-color:var(--primary-color)}.catalog-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.catalog-card{border:2px solid var(--border-color);border-radius:8px;padding:10px;background:var(--white);cursor:pointer;text-align:center;transition:var(--transition)}.catalog-card:hover{border-color:var(--accent-color);transform:translateY(-2px);box-shadow:var(--shadow)}.catalog-card__icon{font-size:1.8rem}.catalog-card__label{font-size:.8rem;color:var(--text-dark);margin-top:6px}.catalog-card__price{font-size:.72rem;color:var(--text-light)}.swatch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:6px}.swatch{display:flex;align-items:center;gap:8px;padding:6px 8px;border-radius:8px;border:2px solid transparent;background:rgba(255,255,255,0.04);cursor:pointer;text-align:left;transition:var(--transition);position:relative;overflow:hidden}.swatch::before{content:"";flex:0 0 22px;width:22px;height:22px;border-radius:6px;background:var(--swatch-bg,#888);box-shadow:inset 0 0 0 1px rgba(0,0,0,0.25)}.swatch>span{pointer-events:none}.swatch__label{font-size:0.78rem;line-height:1.05;color:var(--text-color,#eee);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.swatch__code{font-size:0.66rem;opacity:0.6;font-variant-numeric:tabular-nums;margin-left:auto}.swatch:hover{transform:translateY(-1px);background:rgba(255,255,255,0.08)}.swatch--active,.swatch.is-selected{border-color:var(--accent-color);transform:scale(1.02)}.quote-total{font-family:var(--font-secondary);font-size:1.6rem;color:var(--primary-color)}.quote-line{display:flex;justify-content:space-between;padding:6px 0;font-size:.9rem}.quote-line--muted{color:var(--text-light)}.sheet{display:none}@media (pointer:coarse){.toolbar__btn,.catalog-card,.swatch,.cfg-input,.modal__close,.btn,.btn-sm{min-height:44px;min-width:44px}.swatch__label{font-size:0.8rem}}@media (max-width:1023px){.configurator-shell{grid-template-columns:1fr;grid-template-rows:1fr auto;height:calc(100vh - 70px)}.dock-left,.dock-right{display:none}.viewport{grid-column:1}.toolbar{top:10px;max-width:calc(100% - 20px);overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;gap:6px;padding:6px}.toolbar__btn{white-space:nowrap;padding:8px 12px}.toolbar__select{max-width:130px}.sheet{display:block;grid-row:2;max-height:45vh;overflow-y:auto;background:var(--white);border-top-left-radius:18px;border-top-right-radius:18px;box-shadow:var(--shadow-lg);padding:14px;padding-top:22px}.sheet::before{content:"";position:sticky;top:-22px;left:50%;transform:translateX(-50%);display:block;width:42px;height:5px;border-radius:3px;background:var(--border-color);margin:0 auto 10px}*,*::before,*::after{background-attachment:scroll !important}}.toolbar__group{display:flex;gap:6px;align-items:center;padding-right:6px;border-right:1px solid rgba(0,0,0,0.08)}.toolbar__group:last-child{border-right:none;padding-right:0}.toolbar__btn{padding:8px 12px;font-size:0.85rem;font-family:var(--font-primary);color:var(--text-dark);background:transparent;border:1px solid transparent;border-radius:7px;cursor:pointer;transition:var(--transition);line-height:1}.toolbar__btn:hover{background:rgba(61,40,23,0.06);border-color:var(--border-color)}.toolbar__btn.btn-accent{background:var(--accent-color);color:#fff;font-weight:600}.toolbar__btn.btn-accent:hover{background:#9a7209;border-color:#9a7209}.toolbar__select{padding:8px 10px;max-width:160px}.modal-root{position:fixed;inset:0;z-index:1000;display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .2s ease}.modal-root.is-open{opacity:1;pointer-events:auto}.modal__backdrop{position:absolute;inset:0;background:rgba(20,16,10,0.55);backdrop-filter:blur(2px)}.modal{position:relative;z-index:1;width:min(560px,calc(100vw - 32px));max-height:calc(100vh - 64px);display:flex;flex-direction:column;background:var(--ivory);border-radius:14px;box-shadow:var(--shadow-lg);overflow:hidden;transform:translateY(12px);transition:transform .2s ease}.modal-root.is-open .modal{transform:translateY(0)}.modal--quote{width:min(620px,calc(100vw - 32px))}.modal__header{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;background:var(--primary-color);color:var(--ivory)}.modal__title{font-family:var(--font-secondary);font-size:1.15rem;margin:0}.modal__close{background:transparent;border:none;color:var(--ivory);font-size:1.1rem;cursor:pointer;line-height:1;padding:4px 8px;border-radius:6px;min-width:36px;min-height:36px}.modal__close:hover{background:rgba(255,255,255,0.12)}.modal__body{padding:20px 22px;overflow-y:auto}.modal__footer{display:flex;justify-content:flex-end;gap:10px;padding:16px 22px;border-top:1px solid var(--border-color);background:#fff}.proj-actions{display:flex;gap:10px;margin-bottom:16px;flex-wrap:wrap}.proj-list{display:flex;flex-direction:column;gap:8px}.proj-empty{color:var(--text-light);font-style:italic;text-align:center;padding:24px 8px}.proj-card{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:12px 14px;border:1px solid var(--border-color);border-radius:10px;background:#fff;transition:var(--transition)}.proj-card:hover{border-color:var(--accent-color);box-shadow:var(--shadow)}.proj-card__name{font-weight:600;color:var(--primary-color);font-size:0.95rem}.proj-card__meta{font-size:0.78rem;color:var(--text-light);margin-top:2px}.proj-card__actions{display:flex;gap:6px;flex-shrink:0}.quote-summary{background:#fff;border:1px solid var(--border-color);border-left:4px solid var(--accent-color);border-radius:8px;padding:12px 14px;margin-bottom:18px;font-size:0.88rem}.qs-block + .qs-block{margin-top:10px}.qs-row{margin-bottom:4px}.qs-line{display:flex;justify-content:space-between;gap:10px;padding:3px 0;color:var(--text-dark)}.qs-line--muted{color:var(--text-light);font-style:italic}.qs-line__price{color:var(--text-light);font-variant-numeric:tabular-nums}.qs-empty{color:var(--text-light);font-style:italic;margin:8px 0}.qs-total{display:flex;justify-content:space-between;margin-top:12px;padding-top:10px;border-top:1px solid var(--border-color);color:var(--primary-color)}.quote-form{display:flex;flex-direction:column;gap:12px}.quote-form__field{display:flex;flex-direction:column;gap:4px}.quote-form__label{font-size:0.82rem;font-weight:600;color:var(--text-dark)}.quote-form__input{width:100%}.quote-form textarea.cfg-input{resize:vertical;min-height:70px;font-family:var(--font-primary)}.quote-success{text-align:center;padding:18px 8px}.quote-success__icon{width:56px;height:56px;margin:0 auto 12px;border-radius:50%;background:var(--accent-color);color:#fff;font-size:1.8rem;line-height:56px}.quote-success h4{font-family:var(--font-secondary);color:var(--primary-color);margin:0 0 8px}.quote-success p{color:var(--text-dark);margin:0;font-size:0.92rem}.quote-success a{color:var(--accent-color);font-weight:600}.configurator-page .btn-outline{background:transparent;border:1px solid var(--border-color);color:var(--text-dark)}.configurator-page .btn-outline:hover{border-color:var(--primary-color);color:var(--primary-color)}.configurator-page .btn-ghost{background:transparent;border:1px solid transparent;color:var(--text-light)}.configurator-page .btn-ghost:hover{color:var(--primary-color);background:rgba(0,0,0,0.04)}.configurator-page .btn-sm{padding:8px 12px;font-size:0.82rem}@media (prefers-reduced-motion:reduce){.viewport-status__spinner{animation:none}.modal,.modal-root,.modal-root .modal{transition:none}*{transition:none !important}}.toolbar-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 14px;background:rgba(255,255,255,0.95);border:1px solid var(--border-color);border-radius:8px;font-size:0.85rem;font-weight:500;color:var(--text-dark);cursor:pointer;transition:var(--transition-fast,all 0.2s ease);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px)}.toolbar-btn:hover{background:var(--primary-color,#3D2817);color:white;border-color:var(--primary-color,#3D2817);transform:translateY(-1px);box-shadow:0 4px 12px rgba(61,40,23,0.15)}.toolbar-btn:active{transform:translateY(0)}.toolbar-icon{font-size:1.1em;line-height:1}.toolbar-label{font-size:0.82rem}@keyframes cfgToastIn{from{opacity:0;transform:translateX(-50%) translateY(20px)}to{opacity:1;transform:translateX(-50%) translateY(0)}}.cfg-toast{font-family:var(--font-primary,'Inter',sans-serif);max-width:90vw;text-align:center}@media (max-width:768px){.toolbar{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;padding:6px}.toolbar::-webkit-scrollbar{display:none}.toolbar-btn{flex-shrink:0;padding:10px 14px;min-height:44px;min-width:44px;justify-content:center}.toolbar-label{display:none}.toolbar-icon{font-size:1.3em}}@media (max-width:768px){.configurator-shell{grid-template-columns:1fr;grid-template-rows:1fr auto}.dock-left{position:fixed;bottom:0;left:0;right:0;max-height:50vh;overflow-y:auto;z-index:100;border-radius:16px 16px 0 0;box-shadow:0 -4px 20px rgba(0,0,0,0.15)}.dock-right{display:none}}@media (pointer:coarse){.toolbar-btn,.toolbar__btn,.configurator-page button,.configurator-page .btn{min-height:44px;min-width:44px}.configurator-page input,.configurator-page select{min-height:44px;font-size:16px}}
/* ============================================================
   Mobile & touch optimizations — appended block.
   Desktop (>1024px) is intentionally untouched; rules below only
   apply at <=1024px, <=768px, or coarse pointers.
   ============================================================ */

/* --- Global touch friendliness (no effect on mouse/desktop) --- */
.configurator-page{ -webkit-tap-highlight-color: transparent; }
.configurator-page button,
.configurator-page .toolbar__btn,
.configurator-page .toolbar-btn,
.configurator-page .catalog-card,
.configurator-page .swatch,
.configurator-page .cfg-input,
.configurator-page .modal__close,
.configurator-page .proj-card,
.configurator-page .mobile-panel-toggle{ touch-action: manipulation; }

/* The [hidden] attribute must always win, even where .sheet is set to block */
.sheet[hidden]{ display:none !important; }

/* --- Collapsible-panel toggle (hidden on desktop, shown on mobile) --- */
.mobile-panel-toggle{
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  width:100%;
  min-height:48px;
  padding:12px 16px;
  background:var(--primary-color);
  color:var(--ivory);
  border:none;
  border-radius:0;
  font-family:var(--font-secondary);
  font-size:1rem;
  font-weight:600;
  cursor:pointer;
  position:relative;
  z-index:2;
}
.mobile-panel-toggle__label{ pointer-events:none; }
.mobile-panel-toggle__chev{ transition:transform .25s ease; font-size:1.1rem; line-height:1; pointer-events:none; }
.mobile-panel-toggle[aria-expanded="true"] .mobile-panel-toggle__chev{ transform:rotate(180deg); }

/* --- Tablet (<=1024px): keep the 3-column layout, narrower docks --- */
@media (max-width:1024px){
  .configurator-shell{
    grid-template-columns:260px 1fr 300px;
    grid-template-rows:1fr;
  }
  .dock-left{ grid-column:1; display:block; }
  .dock-right{ grid-column:3; display:block; }
  .viewport{ grid-column:2; }
  /* Sheet is for phones only — keep it hidden on tablet */
  .sheet{ display:none; }
  .swatch-grid{ grid-template-columns:repeat(auto-fill,minmax(104px,1fr)); }
  .catalog-grid{ grid-template-columns:repeat(2,1fr); }
  .toolbar{ gap:10px; }
}

/* --- Mobile (<=768px): single column, full-width collapsible sheet --- */
@media (max-width:768px){
  .configurator-shell{
    grid-template-columns:1fr;
    grid-template-rows:1fr auto;
    height:calc(100vh - 70px);
    min-height:520px;
  }

  /* Viewport: full width, comfortable height, canvas auto-resizes via ResizeObserver */
  .viewport{
    grid-column:1;
    min-height:50vh;
  }

  /* Docks are replaced by the bottom sheet on phones */
  .dock-left,.dock-right{
    display:none !important;
    position:static;
  }

  /* Bottom sheet = full width, collapsible via .mobile-panel-toggle */
  .sheet{
    display:block;
    grid-row:2;
    width:100%;
    max-height:48vh;
    overflow:hidden;
    padding:0;
    border-top-left-radius:18px;
    border-top-right-radius:18px;
    box-shadow:var(--shadow-lg);
    transition:max-height .25s ease;
  }
  .sheet::before{ display:none; } /* replaced by the toggle handle */
  .sheet__body{
    max-height:calc(48vh - 48px);
    overflow-y:auto;
    -webkit-overflow-scrolling:touch;
    padding:12px 16px 24px;
  }
  .sheet.is-collapsed{ max-height:52px; }
  .sheet.is-collapsed .sheet__body{ display:none; }
  .mobile-panel-toggle{ display:flex; }

  /* Toolbar: de-centered, horizontally scrollable, thumb-friendly */
  .toolbar{
    top:10px;
    left:8px;
    right:8px;
    transform:none;
    width:auto;
    max-width:none;
    justify-content:flex-start;
    overflow-x:auto;
    flex-wrap:nowrap;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
    gap:8px;
    padding:6px;
  }
  .toolbar::-webkit-scrollbar{ display:none; }
  .toolbar__group{ gap:8px; padding-right:8px; }
  .toolbar__btn,.toolbar-btn{
    flex:0 0 auto;
    min-height:44px;
    min-width:44px;
    padding:10px 14px;
    font-size:0.95rem;
    justify-content:center;
  }
  .toolbar__select{ min-height:44px; max-width:140px; }

  /* Legible typography (>=16px) and roomy touch targets */
  .panel{ padding:14px 16px; }
  .panel__title{ font-size:1.1rem; }
  .panel__label{ font-size:1rem; }
  .panel__row{ gap:10px; }
  .cfg-input{ font-size:16px; min-height:44px; }
  .catalog-card{ min-height:44px; }
  .catalog-card__label{ font-size:0.9rem; }
  .swatch-grid{ grid-template-columns:repeat(2,1fr); gap:8px; }
  .swatch{ min-height:44px; padding:8px 10px; }
  .swatch::before{ flex:0 0 26px; width:26px; height:26px; }
  .swatch__label{ font-size:0.85rem; }
  .quote-line{ font-size:0.95rem; }
  .quote-total{ font-size:1.5rem; }

  /* Modals: nearly full-bleed on phones, large close target */
  .modal{ width:min(560px,calc(100vw - 16px)); max-height:calc(100vh - 32px); border-radius:12px; }
  .modal__header{ padding:14px 16px; }
  .modal__title{ font-size:1.05rem; }
  .modal__body{ padding:16px; }
  .modal__footer{ padding:12px 16px; flex-wrap:wrap; }
  .modal__close{ min-width:44px; min-height:44px; }

  /* Toast clears the bottom sheet */
  .cfg-toast{ bottom:calc(48vh + 14px); }
}

/* --- Coarse-pointer refinements at any width (touch laptops etc.) --- */
@media (pointer:coarse){
  .configurator-page button,
  .configurator-page .btn,
  .configurator-page .btn-sm,
  .configurator-page .toolbar__btn,
  .configurator-page .toolbar-btn,
  .configurator-page .catalog-card,
  .configurator-page .swatch,
  .configurator-page .proj-card,
  .configurator-page .modal__close,
  .configurator-page .mobile-panel-toggle{ min-height:44px; min-width:44px; }
  /* 16px prevents iOS Safari auto-zoom on input focus */
  .configurator-page input,
  .configurator-page select,
  .configurator-page textarea{ font-size:16px; min-height:44px; }
}

/* Respect reduced-motion for the collapsible sheet */
@media (prefers-reduced-motion:reduce){
  .sheet,
  .mobile-panel-toggle__chev{ transition:none !important; }
}