.landing-page{--redline: var(--color-primary);--redline-hover: var(--color-primary-hover);--redline-tint: var(--color-primary-subtle);--ink: #1e293b;--ink-soft: #475569;--ink-faint: #64748b;--warm-bg: #faf7f5;--warm-line: #ece5e0;min-height:100vh;display:flex;flex-direction:column;background:#fff;color:var(--ink)}.hero-section{padding:7rem 0 5rem;text-align:center;background:radial-gradient(120% 80% at 50% -10%,var(--redline-tint) 0%,rgba(253,241,238,0) 55%),var(--warm-bg)}.hero-title{font-size:5rem;font-weight:var(--font-bold);line-height:1.05;letter-spacing:-.025em;color:var(--ink);margin:0 auto 2rem}.hero-subtitle{font-size:var(--text-xl);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0 auto 3.2rem;max-width:620px}.hero-upload{max-width:680px;margin:0 auto 2rem;padding:4.8rem 3rem;border:3px dashed var(--redline);border-radius:var(--radius-lg);background:#fff;box-shadow:0 2px 4px #1e293b0d,0 24px 60px -16px #d3542e47;transition:all var(--transition-fast);text-align:center}.hero-upload--active{border-color:var(--redline);background:var(--redline-tint);transform:scale(1.015)}.hero-upload__prompt,.hero-upload__selected{display:flex;flex-direction:column;align-items:center;gap:1.4rem}.hero-upload__icon{width:72px;height:72px;color:var(--redline)}.hero-upload__text{font-size:2rem;font-weight:var(--font-bold);color:var(--ink);letter-spacing:-.01em;margin:0}.hero-upload__filename{font-size:var(--text-lg);font-weight:var(--font-semibold);color:var(--ink);margin:0}.hero-upload__filesize,.hero-upload__or{font-size:var(--text-sm);color:var(--ink-faint);margin:0}.hero-upload__label{cursor:pointer}.hero-upload__input{display:none}.hero-upload__options{margin-top:1rem;width:100%;max-width:300px}.hero-upload__select{width:100%;height:var(--control-h-lg);padding:0 .75rem;border:1px solid var(--warm-line);border-radius:var(--radius-hard);font-size:var(--text-base);line-height:normal;color:var(--ink);background:#fff}.hero-upload__actions{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-top:1.5rem;width:100%}.hero-chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.8rem 1.2rem;justify-content:center}.hero-chip{display:inline-flex;align-items:center;gap:.5rem;font-size:var(--text-sm);color:var(--ink-soft);padding:.4rem 1rem;background:#fff;border:1px solid var(--warm-line);border-radius:999px}.hero-chip:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--redline)}.hero-chip--action{cursor:pointer;color:#fff;background:var(--redline);border-color:var(--redline)}.hero-chip--action:before{background:#fff}.hero-chip--action:hover{background:var(--redline-hover)}.section-title{font-size:2.6rem;font-weight:var(--font-bold);letter-spacing:-.02em;color:var(--ink);text-align:center;margin:0 0 1.2rem}.section-lead{font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--ink-soft);text-align:center;max-width:620px;margin:0 auto 3.6rem}.carousel-section{padding:6.5rem 0;background:#fff}.carousel{max-width:760px;margin:0 auto;border:1px solid var(--warm-line);border-radius:var(--radius-lg);background:var(--warm-bg);overflow:hidden}.carousel__stage{display:flex;flex-direction:column;align-items:center;text-align:center;padding:3.2rem 2.4rem 2.8rem;min-height:210px}.carousel__icon{display:inline-flex;align-items:center;justify-content:center;width:72px;height:72px;border-radius:var(--radius-lg);background:var(--color-primary-subtle);color:var(--redline);margin-bottom:1.6rem;animation:carousel-pop .26s ease}.carousel__icon svg{width:38px;height:38px}.carousel__shot{width:100%;max-width:520px;margin-bottom:1.6rem;border:1px solid var(--warm-line);border-radius:var(--radius-md);overflow:hidden;background:#fff;box-shadow:0 8px 24px -14px #1e293b59;animation:carousel-pop .26s ease}.carousel__shot img{display:block;width:100%;height:auto}@keyframes carousel-pop{0%{transform:scale(.9);opacity:0}to{transform:scale(1);opacity:1}}.carousel__name{font-size:var(--text-xl);font-weight:var(--font-bold);color:var(--ink);margin:0 0 .6rem}.carousel__desc{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0;max-width:44ch}.carousel__rail{display:flex;flex-wrap:wrap;justify-content:center;gap:.6rem;padding:1.6rem;background:#fff;border-top:1px solid var(--warm-line)}.carousel__tool{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--warm-line);border-radius:var(--radius-md);background:#fff;color:var(--ink-soft);cursor:pointer;transition:all var(--transition-fast)}.carousel__tool svg{width:20px;height:20px}.carousel__tool:hover{border-color:var(--redline);color:var(--redline)}.carousel__tool.is-active{background:var(--redline);border-color:var(--redline);color:#fff}.promise-section{padding:6.5rem 0;background:#fff}.promise-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.promise-card{padding:2.8rem 2.4rem;border:1px solid var(--warm-line);border-radius:var(--radius-lg);background:var(--warm-bg)}.promise-card--accent{background:var(--redline-tint);border-color:#f3d7cf}.promise-card__num{font-size:var(--text-sm);font-weight:var(--font-bold);letter-spacing:.1em;color:var(--redline);margin-bottom:1.2rem}.promise-card__title{font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--ink);margin:0 0 .8rem}.promise-card__body{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0}.bim-data-section{padding:7rem 0;background:var(--ink)}.bim-data-split{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}.bim-data-copy__title,.bim-data-copy__lead{text-align:left;margin-left:0}.bim-data-copy__title{color:#fff}.bim-data-copy__lead{color:#cbd5e1}.bim-data-list{list-style:none;margin:2rem 0;padding:0;display:flex;flex-direction:column;gap:1.4rem}.bim-data-list__item{padding-left:1.2rem;border-left:2px solid var(--redline)}.bim-data-list__title{display:block;font-size:var(--text-base);font-weight:var(--font-semibold);color:#fff;margin-bottom:.3rem}.bim-data-list__body{display:block;font-size:var(--text-sm);line-height:var(--leading-relaxed);color:#94a3b8}.bim-data-visual{position:relative}.bim-data-visual__sheet{position:relative;aspect-ratio:4 / 3;background:#f4f0ec;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 20px 50px #00000059}.bim-data-visual__room{position:absolute;border:1.5px solid #b8ada3}.bim-data-visual__room--a{top:12%;left:8%;width:38%;height:40%}.bim-data-visual__room--b{top:12%;left:50%;width:42%;height:76%}.bim-data-visual__wall{position:absolute;top:12%;left:46%;width:4px;height:76%;background:var(--redline);box-shadow:0 0 0 4px var(--redline-tint)}.bim-data-visual__popup{position:absolute;right:-1.5rem;bottom:-1.5rem;width:220px;background:#fff;border-radius:var(--radius-lg);box-shadow:0 12px 30px #0000004d;padding:1.1rem 1.2rem}.bim-data-visual__popup-title{font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--ink);margin-bottom:.6rem;padding-bottom:.6rem;border-bottom:1px solid var(--warm-line)}.bim-data-visual__popup-list{margin:0;display:flex;flex-direction:column;gap:.4rem}.bim-data-visual__popup-list>div{display:flex;justify-content:space-between;gap:.6rem}.bim-data-visual__popup-list dt{font-size:.7rem;color:var(--ink-faint)}.bim-data-visual__popup-list dd{margin:0;font-size:.7rem;font-weight:var(--font-semibold);color:var(--ink);text-align:right}.bim-data-section__link{display:inline-block;margin-top:2rem;font-size:var(--text-sm);font-weight:var(--font-semibold);color:var(--redline);text-decoration:none}.bim-data-section__link:hover{color:var(--redline-hover);text-decoration:underline}.footer{margin-top:auto;padding:3.2rem 0;border-top:1px solid var(--warm-line);background:var(--warm-bg)}.footer-text{font-size:var(--text-sm);color:var(--ink-faint);text-align:center;margin:0}.landing-container{max-width:1040px;margin:0 auto;padding:0 2.4rem}@media(max-width:900px){.promise-grid{grid-template-columns:1fr 1fr}}@media(max-width:768px){.hero-title{font-size:3.4rem}.hero-subtitle{font-size:var(--text-lg)}.hero-section{padding:5rem 0 4rem}.section-title{font-size:2.2rem}.landing-container{padding:0 1.6rem}.button-lg{width:100%}.hero-upload{padding:2.8rem 1.8rem}.hero-upload__actions,.hero-upload__actions button{width:100%}}@media(max-width:640px){.promise-grid{grid-template-columns:1fr}.bim-data-split{grid-template-columns:1fr;gap:3rem}.bim-data-visual__popup{right:.5rem;bottom:-1rem}}.viewer-page{display:grid;grid-template-columns:auto 1fr auto;grid-template-rows:60px 1fr;height:100vh;width:100vw;overflow:hidden}.viewer-page{position:relative;--scale-mode-color: #7c3aed;--snap-mode-color: #0d9488}.viewer-page.scale-mode-active .viewer-canvas-container:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;border:3px solid var(--scale-mode-color);pointer-events:none;z-index:40}.viewer-mode-bar{position:absolute;top:60px;left:50%;transform:translate(-50%);z-index:95;display:flex;align-items:center;gap:var(--space-3);max-width:92vw;padding:var(--space-2) var(--space-2) var(--space-2) var(--space-3);border:1.5px solid var(--scale-mode-color);border-top:none;border-radius:0 0 var(--radius-md, 10px) var(--radius-md, 10px);background:var(--ui-surface);box-shadow:0 6px 16px #00000038;animation:mode-drawer-drop .18s ease-out}@keyframes mode-drawer-drop{0%{transform:translate(-50%) translateY(-100%);opacity:0}to{transform:translate(-50%) translateY(0);opacity:1}}.viewer-mode-bar__title{display:inline-flex;align-items:center;gap:var(--space-1);font-weight:700;font-size:.85rem;color:var(--scale-mode-color);white-space:nowrap}.viewer-mode-bar__title:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--scale-mode-color)}.viewer-mode-bar__hint{font-size:.78rem;color:var(--text-secondary);white-space:nowrap}.viewer-mode-bar__tools{display:flex;align-items:center;gap:var(--space-1)}.viewer-mode-bar__exit{display:inline-flex;align-items:center;gap:var(--space-1)}.viewer-mode-bar.snap-bar{--scale-mode-color: var(--snap-mode-color);overflow:visible}.snap-chip{display:inline-flex;align-items:stretch;border:1px solid var(--ui-border);border-radius:var(--radius-sm, 6px);overflow:hidden;background:var(--ui-surface)}.snap-chip.is-active{border-color:var(--snap-mode-color);background:color-mix(in srgb,var(--snap-mode-color) 12%,var(--ui-surface))}.snap-chip__main{display:inline-flex;align-items:center;gap:var(--space-1);padding:4px 8px;font-size:.8rem;color:var(--text-primary);background:transparent;border:none;cursor:pointer;white-space:nowrap}.snap-chip.is-active .snap-chip__main{color:var(--snap-mode-color);font-weight:600}.snap-chip__expand{display:inline-flex;align-items:center;padding:0 4px;background:transparent;border:none;border-left:1px solid var(--ui-border);color:var(--text-secondary);cursor:pointer}.snap-chip.is-disabled,.snap-chip__main:disabled,.snap-chip__expand:disabled{opacity:.5;cursor:not-allowed}.snap-popover{position:absolute;top:calc(100% + 4px);left:var(--space-3);z-index:96;display:flex;flex-direction:column;gap:var(--space-1);min-width:210px;padding:var(--space-2);border:1px solid var(--snap-mode-color);border-radius:var(--radius-md, 10px);background:var(--ui-surface);box-shadow:0 6px 16px #00000038}.snap-popover--content{left:auto;right:var(--space-3)}.snap-popover__grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-1) var(--space-3);padding-bottom:var(--space-1);border-bottom:1px solid var(--ui-border, rgba(128, 128, 128, .25));margin-bottom:var(--space-1)}.snap-popover__row{display:flex;align-items:center;gap:var(--space-2);font-size:.8rem;color:var(--text-primary)}.snap-popover__grid input[type=checkbox],.snap-popover__row input[type=checkbox]{accent-color:var(--snap-mode-color)}.snap-popover__slider{justify-content:space-between}.snap-popover__slider input[type=range]{flex:1;accent-color:var(--snap-mode-color)}.snap-popover__value{min-width:34px;text-align:right;color:var(--text-secondary);font-variant-numeric:tabular-nums}.viewer-header{grid-column:1 / -1;grid-row:1;display:flex;align-items:center;gap:.75rem;padding:0 1rem;background:var(--ui-content);border-bottom:1px solid var(--ui-border);z-index:100;min-width:0;overflow:visible}.viewer-header__left{display:flex;align-items:center;padding-right:.75rem;border-right:1px solid var(--ui-border)}.viewer-header__center{flex:1;display:flex;justify-content:center}.viewer-header__right{display:flex;align-items:center;gap:.5rem}.viewer-header__back{background:none;border:none;color:var(--text-primary);font-size:var(--text-base);cursor:pointer;padding:.5rem .75rem}.viewer-header__back:hover{color:var(--color-primary)}.viewer-header__calibration-status{background:var(--color-warning);padding:.5rem 1rem;border-radius:var(--radius-sm);color:#000;font-weight:var(--font-medium)}.viewer-sidebar{display:flex;flex-direction:row;align-items:center;flex:1 1 auto;min-width:0;overflow:visible}.viewer-sidebar-tool-chest{display:flex;flex-direction:row;align-items:center;position:relative}.tool-chest-toggle{border-radius:var(--radius-sm)}.viewer-sidebar-tool-chest .tool-chest-panel{position:absolute;left:0;top:100%;width:240px;background:var(--ui-panel, #bfc6be);border:1px solid var(--ui-border);border-radius:0 0 4px 4px;box-shadow:2px 2px 6px #0000001f;z-index:200;max-height:70vh;overflow-y:auto}.viewer-toolbar{display:flex;flex-direction:row;align-items:center;flex:1 1 auto;width:auto;height:auto;min-width:0;padding:0;gap:var(--space-2);overflow-x:auto}.toolbar-section{display:flex;flex-direction:row;align-items:center;gap:1px;padding:0 var(--space-2);border-right:1px solid var(--border-light)}.toolbar-section:last-child{border-right:none}.toolbar-section-label{display:none}.toolbar-section button:not(.icon-button){width:auto}.page-nav-input-group{display:flex;align-items:center;gap:var(--space-1);font-size:.8rem;color:var(--text-secondary);white-space:nowrap}.page-nav-input{width:2.75rem;text-align:center;padding:2px 4px;border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--ui-surface);color:var(--text-primary);font-size:.8rem;line-height:1.2;-moz-appearance:textfield}.page-nav-input:focus{outline:none;border-color:var(--color-primary)}.page-nav-total{color:var(--text-secondary)}.toolbar-tools{display:flex;flex-direction:row;align-items:center;gap:var(--space-1)}.viewer-toolbar .icon-button{width:28px;height:28px}.viewer-toolbar .icon-button.is-flashing{background:var(--color-accent-soft);transition:background .1s ease-in,background .15s ease-out .1s}.stamp-toolbar-section{gap:var(--space-2)}.stamp-palette{display:flex;flex-direction:row;align-items:center;gap:var(--space-1)}.stamp-palette-button{white-space:nowrap}.stamp-palette-meta{font-size:.75rem;color:var(--text-secondary);white-space:nowrap}.viewer-left-nav{grid-column:1;grid-row:2;background:var(--ui-content);border-right:1px solid var(--ui-border);overflow:hidden;display:flex;flex-direction:column;position:relative;transition:width .2s ease}.viewer-left-nav.collapsed{width:30px!important;min-width:30px;border-right:none}.left-nav-resize-handle{position:absolute;right:0;top:0;bottom:0;width:4px;background:transparent;cursor:col-resize;z-index:10;transition:background .2s}.left-nav-resize-handle:hover,.left-nav-resize-handle:active{background:var(--ui-primary)}.viewer-canvas-container{grid-column:2;grid-row:2;background:var(--ui-canvas);overflow:hidden;position:relative;display:flex;align-items:center;justify-content:center}.viewer-page.data-view-open .viewer-canvas-container{display:none}.viewer-markups-sidebar{grid-column:3;grid-row:2;background:var(--ui-content);border-left:1px solid var(--ui-border);overflow:hidden;display:flex;flex-direction:column;position:relative;transition:width .2s ease}.viewer-markups-sidebar.collapsed{width:30px!important;min-width:30px;border-left:none}.sidebar-resize-handle{position:absolute;left:0;top:0;bottom:0;width:4px;background:transparent;cursor:col-resize;z-index:10;transition:background .2s}.sidebar-resize-handle:hover,.sidebar-resize-handle:active{background:var(--ui-primary)}@media(max-width:768px){.viewer-page{grid-template-columns:1fr;grid-template-rows:60px 1fr}.viewer-header{grid-column:1;grid-row:1}.viewer-canvas-container{grid-column:1;grid-row:2;display:flex;align-items:center;justify-content:center}.viewer-markups-sidebar{position:fixed;bottom:0;left:0;right:0;width:100%;height:50vh;max-height:60vh;transform:translateY(100%);transition:transform .3s ease-out;z-index:200;box-shadow:0 -4px 20px #0003;border-left:none;border-top:1px solid var(--ui-border)}.viewer-markups-sidebar.open{transform:translateY(0)}.viewer-left-nav{position:fixed;top:60px;bottom:0;left:0;width:min(320px,85vw)!important;transform:translate(-100%);transition:transform .3s ease-out;z-index:200;box-shadow:4px 0 20px #0003;border-right:1px solid var(--ui-border)}.viewer-left-nav.open{transform:translate(0)}.left-nav-resize-handle{display:none}.mobile-nav-toggle{position:fixed;bottom:1rem;left:1rem;z-index:150;width:56px;height:56px;border-radius:50%;background:var(--ui-primary);color:#fff;border:none;box-shadow:0 4px 12px #0000004d;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:2rem;transition:all .2s}.mobile-nav-toggle:hover{transform:scale(1.05);box-shadow:0 6px 16px #0006}.mobile-nav-toggle:focus{outline:2px solid var(--ui-focus);outline-offset:2px}.mobile-markups-toggle{position:fixed;bottom:1rem;right:1rem;z-index:150;width:56px;height:56px;border-radius:50%;background:var(--ui-primary);color:#fff;border:none;box-shadow:0 4px 12px #0000004d;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:2rem;font-weight:700;transition:all .2s}.mobile-markups-toggle:hover{transform:scale(1.05);box-shadow:0 6px 16px #0006}.mobile-markups-toggle:focus{outline:2px solid var(--ui-focus);outline-offset:2px}.desktop-only{display:none}}@media(min-width:768px){.mobile-only,.mobile-markups-toggle,.mobile-nav-toggle{display:none}}.mobile-backdrop{display:none;position:fixed;top:0;left:0;right:0;bottom:0;background:#00000080;z-index:190;opacity:0;transition:opacity .3s}.mobile-backdrop.visible{display:block;opacity:1}@media(min-width:768px){.mobile-backdrop{display:none!important}}.collaborator-presence{display:flex;align-items:center;gap:.5rem;padding:.25rem .75rem;background:var(--color-gray-100);border-radius:var(--radius-sm);font-size:.9rem}.tiled-canvas-container{position:relative;display:inline-block}.base-layer-slot,.prior-scale-underlay-slot{position:absolute;overflow:hidden;pointer-events:none}.base-layer-canvas{display:block;background-color:#fff}.prior-scale-underlay-canvas,.tile-canvas{position:absolute;background-color:#fff}.export-dialog-content{min-width:400px}.export-progress{text-align:center;padding:var(--space-4, 1rem)}.progress-bar{width:100%;height:8px;background:var(--ui-bg-secondary, #e0e0e0);border-radius:var(--radius-sm);overflow:hidden;margin:var(--space-3, .75rem) 0}.progress-fill{height:100%;background:var(--color-primary, #007bff);transition:width .3s ease}.progress-text{color:var(--text-secondary, #666);font-size:.875rem}.custom-range-input{margin-left:1.5rem;margin-top:var(--space-2, .5rem)}.custom-range-input input{width:100%;max-width:300px}.custom-range-input small{display:block;margin-top:var(--space-1, .25rem)}.radio-label{display:flex;align-items:center;gap:var(--space-2, .5rem);cursor:pointer}.form-group{margin-bottom:var(--space-3, .75rem)}.export-mode-group{margin-top:var(--space-3, .75rem);padding-top:var(--space-3, .75rem);border-top:1px solid var(--border-light)}.form-group-label{display:block;font-size:.8rem;font-weight:600;color:var(--text-secondary);margin-bottom:var(--space-2, .5rem)}.alert{padding:var(--space-2, .5rem) var(--space-3, .75rem);border-radius:var(--radius-sm);margin-top:var(--space-3, .75rem)}.alert-error{background:var(--color-destructive-bg);color:var(--color-destructive);border:1px solid #fcc}.text-muted{color:var(--text-secondary)}.scale-indicator{font-size:.85rem;color:var(--text-muted);margin-left:.5rem}.scale-control{display:inline-flex;align-items:center;gap:var(--space-1);height:28px;padding:0 var(--space-2);border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--ui-surface);color:var(--text-primary);font-size:.8rem;line-height:1;white-space:nowrap;cursor:pointer;transition:background .15s,border-color .15s,color .15s}.scale-control:hover{border-color:var(--color-primary);background:var(--ui-content)}.scale-control svg{flex:0 0 auto;color:var(--text-secondary)}.scale-control-value{font-variant-numeric:tabular-nums}.scale-control-tag{flex:0 0 auto;font-size:.6rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary);border:1px solid var(--border-light);border-radius:3px;padding:1px 3px;line-height:1}.scale-control--manual svg{color:var(--color-primary)}.scale-control--viewports svg{color:var(--color-primary)}.scale-control--unset{border-color:var(--color-warning);background:color-mix(in srgb,var(--color-warning) 14%,transparent);color:var(--text-primary);font-weight:600;animation:scale-unset-pulse 2.4s ease-out infinite}.scale-control--unset svg{color:var(--color-warning)}.scale-control--unset:hover{background:color-mix(in srgb,var(--color-warning) 24%,transparent);border-color:var(--color-warning);animation:none}@keyframes scale-unset-pulse{0%{box-shadow:0 0 color-mix(in srgb,var(--color-warning) 40%,transparent)}70%{box-shadow:0 0 0 6px color-mix(in srgb,var(--color-warning) 0%,transparent)}to{box-shadow:0 0 color-mix(in srgb,var(--color-warning) 0%,transparent)}}@media(prefers-reduced-motion:reduce){.scale-control--unset{animation:none}}.viewport-scale-toggle{position:absolute;top:calc(var(--space-3) + 4px);right:var(--space-3);z-index:20;display:inline-flex;align-items:center;gap:var(--space-1);height:30px;padding:0 var(--space-2);border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--ui-surface);color:var(--text-secondary);font-size:.78rem;font-weight:600;white-space:nowrap;cursor:pointer;box-shadow:var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, .15));transition:background .15s,border-color .15s,color .15s}.viewport-scale-toggle:hover{border-color:#4a7dff;color:var(--text-primary)}.viewport-scale-toggle.is-active{border-color:#4a7dff;background:color-mix(in srgb,#4a7dff 14%,var(--ui-surface));color:#2a5adf}.viewport-scale-toggle svg{flex:0 0 auto}.scale-region-chip{display:inline-flex;align-items:center;gap:var(--space-1);padding:var(--space-1);border:1px solid var(--border-light);border-radius:var(--radius-sm);background:var(--ui-surface);box-shadow:var(--shadow-sm, 0 2px 6px rgba(0, 0, 0, .2));white-space:nowrap}.scale-region-rename{width:130px;padding:2px 6px;font-size:.8rem;border:1px solid var(--scale-mode-color);border-radius:var(--radius-sm);background:var(--ui-surface);color:var(--text-primary)}.badge{display:inline-block;padding:.15rem .4rem;border-radius:3px;font-size:.7rem;margin-left:.25rem}.badge-warning{background:var(--color-warning);color:#000}.download-page{min-height:100vh;background:radial-gradient(120% 90% at 50% 0%,#fdf1eef2,#fdf1ee00 60%),#fffaf7;color:#1e293b}.download-container{max-width:960px;margin:0 auto;padding:0 2.4rem}.download-hero{padding:7rem 0 4rem}.download-eyebrow{margin:0 0 1rem;font-size:.85rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--color-primary)}.download-title{margin:0 0 1.25rem;max-width:12ch;font-size:clamp(3rem,6vw,5rem);line-height:.98;letter-spacing:-.03em}.download-lead{margin:0;max-width:42rem;font-size:1.15rem;line-height:1.7;color:#475569}.download-actions{margin-top:2.5rem;display:flex;flex-direction:column;align-items:flex-start;gap:.9rem}.download-note{margin:0;font-size:.95rem;color:#64748b}.download-details{padding:0 0 5rem}.download-grid{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(260px,1fr);gap:1.5rem}.download-card{padding:2rem;border:1px solid #e7ddd7;background:#ffffffeb;box-shadow:0 20px 50px -36px #94a3b8e6}.download-card--muted{background:#f7f3ef}.download-card h2{margin:0 0 1rem;font-size:1.35rem}.download-card p,.download-card li{font-size:1rem;line-height:1.65;color:#475569}.download-card ul{margin:0;padding-left:1.25rem}@media(max-width:768px){.download-hero{padding:5rem 0 3rem}.download-container{padding:0 1.6rem}.download-grid{grid-template-columns:1fr}.download-actions,.download-actions .button{width:100%}}.bbmac-page{--redline: var(--color-primary);--redline-hover: var(--color-primary-hover);--redline-tint: var(--color-primary-subtle);--ink: #1e293b;--ink-soft: #475569;--ink-faint: #64748b;--warm-bg: #faf7f5;--warm-line: #ece5e0;min-height:100vh;display:flex;flex-direction:column;background:#fff;color:var(--ink)}.bbmac-container{max-width:1040px;margin:0 auto;padding:0 2.4rem}.bbmac-hero{padding:7rem 0 5rem;text-align:center;background:radial-gradient(120% 80% at 50% -10%,var(--redline-tint) 0%,rgba(253,241,238,0) 55%),var(--warm-bg)}.bbmac-eyebrow{font-size:var(--text-sm);font-weight:var(--font-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--redline);margin:0 0 1.2rem}.bbmac-hero__title{font-size:4.4rem;font-weight:var(--font-bold);line-height:1.05;letter-spacing:-.025em;color:var(--ink);margin:0 auto 2rem;max-width:780px}.bbmac-hero__lead{font-size:var(--text-xl);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0 auto 2.8rem;max-width:640px}.bbmac-hero__cta{margin-bottom:2rem}.bbmac-chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.8rem 1.2rem;justify-content:center}.bbmac-chip{display:inline-flex;align-items:center;gap:.5rem;font-size:var(--text-sm);color:var(--ink-soft);padding:.4rem 1rem;background:#fff;border:1px solid var(--warm-line);border-radius:999px}.bbmac-chip:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--redline)}.bbmac-context{padding:3rem 0;background:#fff;border-bottom:1px solid var(--warm-line)}.bbmac-context__note{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-faint);text-align:center;max-width:680px;margin:0 auto}.bbmac-features{padding:6.5rem 0;background:#fff}.bbmac-section-title{font-size:2.6rem;font-weight:var(--font-bold);letter-spacing:-.02em;color:var(--ink);text-align:center;margin:0 0 1.2rem}.bbmac-section-lead{font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--ink-soft);text-align:center;max-width:620px;margin:0 auto 3.6rem}.bbmac-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.bbmac-feature-card{padding:2.8rem 2.4rem;border:1px solid var(--warm-line);border-radius:var(--radius-lg);background:var(--warm-bg)}.bbmac-feature-card--accent{background:var(--redline-tint);border-color:#f3d7cf}.bbmac-feature-card__title{font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--ink);margin:0 0 .8rem}.bbmac-feature-card__body{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0}.bbmac-cta-section{padding:6rem 0;background:var(--warm-bg);border-top:1px solid var(--warm-line)}.bbmac-cta-inner{text-align:center}.bbmac-cta-section__title{font-size:2.2rem;font-weight:var(--font-bold);letter-spacing:-.02em;color:var(--ink);margin:0 0 1rem}.bbmac-cta-section__lead{font-size:var(--text-lg);color:var(--ink-soft);margin:0 auto 2.4rem;max-width:500px}.bbmac-cta-section__actions{display:flex;flex-wrap:wrap;gap:1.2rem;justify-content:center;align-items:center}.bbmac-footer{margin-top:auto;padding:2.4rem 0;border-top:1px solid var(--warm-line);background:var(--warm-bg)}.bbmac-footer__text{font-size:var(--text-sm);color:var(--ink-faint);text-align:center;margin:0}.bbmac-footer__link{color:inherit;text-decoration:none}.bbmac-footer__link:hover{color:var(--redline)}@media(max-width:900px){.bbmac-feature-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.bbmac-hero__title{font-size:3.2rem}.bbmac-hero__lead{font-size:var(--text-lg)}.bbmac-hero{padding:5rem 0 4rem}.bbmac-section-title{font-size:2.2rem}.bbmac-container{padding:0 1.6rem}.button-lg{width:100%}.bbmac-cta-section__actions{flex-direction:column}}@media(max-width:640px){.bbmac-feature-grid{grid-template-columns:1fr}}.bbrev-page{--redline: var(--color-primary);--redline-hover: var(--color-primary-hover);--redline-tint: var(--color-primary-subtle);--ink: #1e293b;--ink-soft: #475569;--ink-faint: #64748b;--warm-bg: #faf7f5;--warm-line: #ece5e0;min-height:100vh;display:flex;flex-direction:column;background:#fff;color:var(--ink)}.bbrev-container{max-width:1040px;margin:0 auto;padding:0 2.4rem}.bbrev-hero{padding:7rem 0 5rem;text-align:center;background:radial-gradient(120% 80% at 50% -10%,var(--redline-tint) 0%,rgba(253,241,238,0) 55%),var(--warm-bg)}.bbrev-eyebrow{font-size:var(--text-sm);font-weight:var(--font-semibold);letter-spacing:.08em;text-transform:uppercase;color:var(--redline);margin:0 0 1.2rem}.bbrev-hero__title{font-size:4.4rem;font-weight:var(--font-bold);line-height:1.05;letter-spacing:-.025em;color:var(--ink);margin:0 auto 2rem;max-width:780px}.bbrev-hero__lead{font-size:var(--text-xl);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0 auto 2.8rem;max-width:700px}.bbrev-hero__cta{margin-bottom:2rem}.bbrev-chips{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:.8rem 1.2rem;justify-content:center}.bbrev-chip{display:inline-flex;align-items:center;gap:.5rem;font-size:var(--text-sm);color:var(--ink-soft);padding:.4rem 1rem;background:#fff;border:1px solid var(--warm-line);border-radius:999px}.bbrev-chip:before{content:"";width:6px;height:6px;border-radius:50%;background:var(--redline)}.bbrev-context{padding:3rem 0;background:#fff;border-bottom:1px solid var(--warm-line)}.bbrev-context__note{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-faint);text-align:center;max-width:720px;margin:0 auto}.bbrev-features{padding:6.5rem 0;background:#fff}.bbrev-section-title{font-size:2.6rem;font-weight:var(--font-bold);letter-spacing:-.02em;color:var(--ink);text-align:center;margin:0 0 1.2rem}.bbrev-section-lead{font-size:var(--text-lg);line-height:var(--leading-relaxed);color:var(--ink-soft);text-align:center;max-width:620px;margin:0 auto 3.6rem}.bbrev-feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.bbrev-feature-card{padding:2.8rem 2.4rem;border:1px solid var(--warm-line);border-radius:var(--radius-lg);background:var(--warm-bg)}.bbrev-feature-card--accent{background:var(--redline-tint);border-color:#f3d7cf}.bbrev-feature-card__title{font-size:var(--text-xl);font-weight:var(--font-semibold);color:var(--ink);margin:0 0 .8rem}.bbrev-feature-card__body{font-size:var(--text-base);line-height:var(--leading-relaxed);color:var(--ink-soft);margin:0}.bbrev-cta-section{padding:6rem 0;background:var(--warm-bg);border-top:1px solid var(--warm-line)}.bbrev-cta-inner{text-align:center}.bbrev-cta-section__title{font-size:2.2rem;font-weight:var(--font-bold);letter-spacing:-.02em;color:var(--ink);margin:0 0 1rem}.bbrev-cta-section__lead{font-size:var(--text-lg);color:var(--ink-soft);margin:0 auto 2.4rem;max-width:520px}.bbrev-cta-section__actions{display:flex;flex-wrap:wrap;gap:1.2rem;justify-content:center;align-items:center}.bbrev-footer{margin-top:auto;padding:2.4rem 0;border-top:1px solid var(--warm-line);background:var(--warm-bg)}.bbrev-footer__text{font-size:var(--text-sm);color:var(--ink-faint);text-align:center;margin:0}.bbrev-footer__link{color:inherit;text-decoration:none}.bbrev-footer__link:hover{color:var(--redline)}@media(max-width:900px){.bbrev-feature-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:768px){.bbrev-hero__title{font-size:3.2rem}.bbrev-hero__lead{font-size:var(--text-lg)}.bbrev-hero{padding:5rem 0 4rem}.bbrev-section-title{font-size:2.2rem}.bbrev-container{padding:0 1.6rem}.button-lg{width:100%}.bbrev-cta-section__actions{flex-direction:column}}@media(max-width:640px){.bbrev-feature-grid{grid-template-columns:1fr}}:root{--color-gray-50: #fafafa;--color-gray-100: #f5f5f5;--color-gray-200: #e5e5e5;--color-gray-300: #d4d4d4;--color-gray-400: #a3a3a3;--color-gray-500: #737373;--color-gray-600: #525252;--color-gray-700: #404040;--color-gray-800: #262626;--color-gray-900: #171717;--color-canvas: #ffffff;--color-surface: var(--color-gray-50);--color-surface-elevated: #ffffff;--color-primary: #dc4a30;--color-primary-hover: #c23f28;--color-primary-active: #a83521;--color-primary-subtle: #fdf1ee;--color-primary-subtle-strong: #f9ddd5;--color-focus: #dc4a30;--color-destructive: #dc2626;--color-destructive-hover: #b91c1c;--color-destructive-bg: #fff5f5;--color-success: #16a34a;--color-warning: #ea580c;--color-role-admin: #00aacc;--color-role-owner: #aa00ff;--color-markup-default: #ec4899;--color-markup-selected: #f97316;--text-primary: var(--color-gray-800);--text-secondary: var(--color-gray-600);--text-tertiary: var(--color-gray-500);--text-disabled: var(--color-gray-400);--border-light: var(--color-gray-200);--border-medium: var(--color-gray-300);--color-text-primary: var(--text-primary);--color-text-secondary: var(--text-secondary);--color-text-muted: var(--text-tertiary);--color-text-disabled: var(--text-disabled);--color-border: var(--border-medium);--color-border-light: var(--border-light);--ui-canvas: var(--color-canvas);--ui-panel-bg: var(--color-surface);--ui-surface: var(--color-surface-elevated);--ui-content: var(--color-surface-elevated);--ui-primary: var(--color-primary);--ui-focus: var(--color-focus);--ui-destructive: var(--color-destructive);--ui-border: var(--border-medium);--markup-default: var(--color-markup-default);--markup-selected: var(--color-markup-selected);--grid-alt-row: var(--color-gray-50);--grid-header: var(--color-gray-100);--color-error: var(--color-destructive);--color-success: var(--color-success);--color-warning: var(--color-warning);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: "SF Mono", Monaco, "Cascadia Code", "Courier New", monospace;--text-xs: 1.2rem;--text-sm: 1.3rem;--text-base: 1.4rem;--text-lg: 1.6rem;--text-xl: 1.8rem;--text-2xl: 2.4rem;--font-normal: 400;--font-medium: 500;--font-semibold: 600;--font-bold: 700;--leading-tight: 1.25;--leading-normal: 1.5;--leading-relaxed: 1.75;--space-0: 0;--space-1: .4rem;--space-2: .8rem;--space-3: 1.2rem;--space-4: 1.6rem;--space-6: 2.4rem;--space-8: 3.2rem;--space-12: 4.8rem;--radius-sm: 4px;--radius-md: 6px;--radius-lg: 8px;--radius-full: 9999px;--radius-hard: 0;--control-h-sm: 24px;--control-h-md: 28px;--control-h-lg: 34px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);--sidebar-width: 220px;--toolbar-width: 60px;--header-height: 60px;--transition-fast: .15s ease;--transition-base: .2s ease;--transition-slow: .3s ease;--transition-duration: .3s;--transition-easing: cubic-bezier(.4, 0, .2, 1);--button-shadow-inset: inset 0 1px 2px rgba(0, 0, 0, .05);--button-shadow-outset: 0 1px 3px rgba(0, 0, 0, .1);--button-bevel: linear-gradient(180deg, rgba(255, 255, 255, .1) 0%, rgba(0, 0, 0, .05) 100%)}*{box-sizing:border-box}html{font-size:62.5%;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}html,body{height:100%;margin:0;padding:0}body{font-family:var(--font-sans);font-size:var(--text-base);line-height:var(--leading-normal);color:var(--text-primary);background:var(--color-canvas)}#root{min-height:100vh;display:flex;flex-direction:column}h1,h2,h3,h4,h5,h6{margin:0 0 1rem;font-weight:600;line-height:1.2;color:var(--ui-text)}h1{font-size:3.2rem}h2{font-size:2.4rem}h3{font-size:1.8rem}h4{font-size:1.6rem}h5{font-size:1.4rem}h6{font-size:1.2rem}p{margin:0 0 1rem}a{color:var(--ui-accent);text-decoration:none}a:hover{text-decoration:underline}.text-center{text-align:center}.text-muted{color:var(--text-tertiary)}.mt-1{margin-top:1rem}.mt-2{margin-top:2rem}.mb-1{margin-bottom:1rem}.mb-2{margin-bottom:2rem}.app{min-height:100vh;display:flex;flex-direction:column}.app-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:1.5rem}.loading-spinner{width:48px;height:48px;border:4px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.main-app{flex:1;display:flex;flex-direction:column;background:var(--ui-bg)}.main-header{background:var(--ui-surface);border-bottom:2px solid var(--ui-border);padding:1rem 2rem;display:flex;align-items:center;justify-content:space-between;box-shadow:0 2px 8px #00000080}.main-header h1{font-size:2rem;margin:0;line-height:1;color:var(--ui-text)}.main-content{flex:1;display:flex;background:var(--ui-bg)}@media(min-width:768px){.sidebar-left{width:var(--sidebar-width);background:var(--ui-surface);border-right:2px solid var(--ui-border);display:flex;flex-direction:column;transition:width var(--transition-duration) var(--transition-easing);overflow:hidden}.main-panel{flex:1;overflow:auto}}@media(max-width:767px){.sidebar-left{position:fixed;top:0;left:0;width:100%;height:100%;transform:translate(-100%);transition:transform var(--transition-duration) var(--transition-easing);z-index:999}.sidebar-left.open{transform:translate(0)}.hamburger-button{display:flex;flex-direction:column;gap:4px;min-height:40px;width:40px;padding:8px;justify-content:center;align-items:center}.hamburger-button span{display:block;width:20px;height:2px;background:currentColor;transition:all .2s ease}}.empty-state{padding:3rem;color:var(--text-tertiary);text-align:center}.auth-page{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:2rem;background-color:var(--ui-bg)}.auth-container{background:var(--ui-surface);padding:3rem;border-radius:0;border:1px solid var(--ui-border);box-shadow:var(--button-shadow-outset);width:100%;max-width:400px}.auth-container h2{text-align:center;margin-bottom:2rem;color:var(--ui-text)}.auth-container .button-primary{width:100%;margin-top:1rem}.auth-error{background-color:#ff444426;color:var(--color-error);border:1px solid var(--color-error);padding:1rem;border-radius:0;margin-bottom:1.5rem;font-size:1.4rem;text-align:center}.auth-switch{text-align:center;margin-top:2rem;font-size:1.4rem;color:var(--text-tertiary)}.auth-switch a{color:var(--ui-accent)}.dashboard-toolbar{display:flex;flex-direction:column;gap:1rem;padding:1rem;background:var(--ui-surface);border-bottom:1px solid var(--ui-border);overflow-y:auto;flex:1}.dashboard-toolbar h2{margin:0;font-size:1.6rem;color:var(--ui-text);padding-bottom:1rem;border-bottom:1px solid var(--ui-border)}.project-list{display:flex;flex-direction:column;gap:.5rem;flex:1;overflow-y:auto}.project-chip{background:#ffffff0d;border:1px solid var(--ui-border);border-radius:0;padding:1rem;cursor:pointer;transition:all .15s ease;display:flex;align-items:center;gap:.8rem;font-size:1.4rem;color:var(--ui-text)}.project-chip:hover{border-color:var(--ui-accent);background:#00aaff1a}.project-chip.selected{border-color:var(--ui-accent);background:#0af3;box-shadow:inset 2px 0 0 var(--ui-accent)}.project-chip-status{width:8px;height:8px;border-radius:50%;flex-shrink:0}.project-chip-status.active{background-color:var(--color-success)}.project-chip-status.archived{background-color:var(--color-gray-600)}.project-chip-name{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.project-detail{padding:2rem;background:var(--ui-surface);border:1px solid var(--ui-border)}.project-detail h3{margin-top:0;color:var(--ui-text)}button,.button{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;min-height:var(--control-h-md);padding:0 1rem;color:var(--text-primary);text-align:center;font-size:var(--text-sm);font-weight:var(--font-medium);line-height:1;text-decoration:none;white-space:nowrap;background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:var(--radius-hard);cursor:pointer;box-shadow:none;transition:background var(--transition-fast),border-color var(--transition-fast),color var(--transition-fast);font-family:inherit}button:hover,.button:hover{background:var(--color-primary-subtle);border-color:var(--color-focus)}button:active,.button:active{background:var(--color-primary-subtle-strong)}.button-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.button-primary:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.button-primary:active{background:var(--color-primary-active);border-color:var(--color-primary-active)}.button-secondary{background:var(--color-surface-elevated);border-color:var(--color-border);color:var(--text-primary)}.button-danger{background:var(--color-surface-elevated);border-color:var(--color-destructive);color:var(--color-destructive)}.button-danger:hover{background:var(--color-destructive);border-color:var(--color-destructive);color:#fff}.button-danger:active{background:var(--color-destructive-hover);border-color:var(--color-destructive-hover);color:#fff}.button-danger:disabled{opacity:.4;cursor:not-allowed;background:var(--color-surface-elevated);color:var(--color-destructive);border-color:var(--color-destructive)}.button-ghost,.button-link{background:transparent;border-color:transparent;box-shadow:none;color:var(--text-secondary)}.button-ghost:hover,.button-link:hover{background:var(--color-primary-subtle);border-color:transparent;color:var(--text-primary)}.button-link{padding:0 .5rem}.button-link:hover{background:transparent;text-decoration:underline}.button-small,.button-sm{min-height:var(--control-h-sm);padding:0 .8rem;font-size:var(--text-xs)}.button-lg{min-height:var(--control-h-lg);padding:0 1.6rem;font-size:var(--text-base)}.button-toolbar{width:100%;min-height:var(--control-h-sm);padding:var(--space-1);font-size:var(--text-xs);line-height:var(--leading-tight)}.button-toolbar.button-primary{background:var(--color-primary);border-color:var(--color-primary);color:#fff}.action-buttons{display:flex;gap:var(--space-2);align-items:center;justify-content:flex-end}.action-buttons-mobile{flex-direction:column;gap:var(--space-1)}.action-buttons-mobile button{width:100%}button:disabled,.button:disabled{opacity:.4;cursor:not-allowed;pointer-events:none}@media(hover:none)and (pointer:coarse){button,.button{min-height:var(--control-h-lg)}.button-small,.button-sm{min-height:var(--control-h-md)}.keyboard-hint{display:none!important}}input[type=email],input[type=number],input[type=search],input[type=text],input[type=tel],input[type=url],input[type=password],textarea,select{height:30px;padding:6px 10px;background-color:var(--ui-surface);border:1px solid var(--ui-border);border-radius:0;color:var(--ui-text);font-family:inherit;font-size:1.4rem;outline:none}input[type=email]:focus,input[type=number]:focus,input[type=search]:focus,input[type=text]:focus,input[type=tel]:focus,input[type=url]:focus,input[type=password]:focus,textarea:focus,select:focus{border-color:var(--ui-accent);box-shadow:0 0 0 1px var(--ui-accent)}textarea{min-height:80px;padding-top:8px;padding-bottom:8px}label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--ui-text);font-size:1.3rem}fieldset{padding:0;border:none;margin:0}.form-error{color:var(--color-error);font-size:1.2rem;margin-top:.5rem}label.required:after{content:" *";color:var(--color-error)}table{width:100%;border-collapse:collapse;margin-bottom:2rem}th,td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--ui-border)}th{font-weight:600;background:var(--ui-surface);color:var(--ui-text);text-transform:uppercase;font-size:1.2rem;letter-spacing:.05em}tbody tr:hover{background:#00aaff0d}.permissions-list table{margin-bottom:0}.permissions-list td,.permissions-list th{vertical-align:middle}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-content{background:var(--ui-surface);padding:2rem;border-radius:0;border:2px solid var(--ui-border);width:100%;max-width:450px;box-shadow:0 8px 32px #000c;max-height:90vh;overflow-y:auto}.modal-content h3{margin-top:0;margin-bottom:1.5rem;color:var(--ui-text)}.modal-actions{display:flex;justify-content:flex-end;gap:1rem;margin-top:2rem}.document-upload{margin-bottom:1.5rem}.upload-zone{border:2px dashed var(--ui-border);border-radius:0;padding:2rem;text-align:center;cursor:pointer;transition:all .2s ease;background:#ffffff05}.upload-zone:hover{border-color:var(--ui-accent);background:#00aaff0d}.upload-zone--active{border-color:var(--ui-accent);background:#00aaff1a}.upload-zone--uploading{cursor:default;opacity:.7}.upload-zone p{margin:.5rem 0;color:var(--ui-text)}.upload-icon{font-size:2.5rem;margin-bottom:.5rem}.upload-progress{display:flex;align-items:center;justify-content:center;gap:1rem}.upload-error{margin-top:1rem;color:var(--color-error)}.document-list{display:flex;flex-direction:column;gap:.5rem}.document-item{display:flex;align-items:center;justify-content:space-between;padding:1rem;background:#ffffff0d;border:1px solid var(--ui-border);border-radius:0;transition:all .15s ease;cursor:pointer}.document-item:hover{border-color:var(--ui-accent);background:#00aaff1a}.document-item.selected{border-color:var(--ui-accent);background:#0af3;box-shadow:inset 2px 0 0 var(--ui-accent)}.document-info{flex:1;min-width:0}.document-name{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--ui-text)}.document-meta{font-size:1.2rem;margin-top:.25rem;color:var(--text-tertiary)}.role-badge{display:inline-block;padding:.4rem .8rem;border-radius:0;border:1px solid var(--ui-border);font-size:1.1rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;background:var(--ui-surface)}.role-admin{border-color:var(--color-role-admin);color:var(--color-role-admin)}.role-editor{border-color:var(--color-success);color:var(--color-success)}.role-viewer{border-color:var(--color-warning);color:var(--color-warning)}.role-owner{border-color:var(--color-role-owner);color:var(--color-role-owner)}.viewer-title{color:var(--ui-text);margin:0}.properties-toolbar{display:flex;align-items:center;gap:1.5rem;padding:.5rem 1rem;background:var(--ui-surface);border-bottom:2px solid var(--ui-border);font-size:1.3rem;height:48px;overflow-x:auto}.properties-toolbar .toolbar-group{display:flex;align-items:center;gap:1rem;padding-right:1.5rem;border-right:1px solid var(--ui-border)}.properties-toolbar .toolbar-group:last-child{border-right:none}.properties-toolbar label{margin:0;font-weight:600;white-space:nowrap;margin-right:.5rem;display:inline-block;color:var(--ui-text);font-size:1.2rem}.properties-toolbar .color-picker{display:flex;gap:.5rem}.properties-toolbar .color-swatch{width:24px;height:24px;border-radius:0;border:2px solid var(--ui-border);cursor:pointer;padding:0;transition:all .15s ease}.properties-toolbar .color-swatch:hover{border-color:var(--ui-accent);transform:scale(1.1)}.properties-toolbar .color-swatch.active{border-color:var(--ui-accent);transform:scale(1.15);box-shadow:0 0 0 2px var(--ui-surface),0 0 0 4px var(--ui-accent)}.properties-toolbar input[type=range]{width:100px;margin:0;vertical-align:middle}.properties-toolbar textarea.compact-input,.properties-toolbar input.compact-input,input.compact-input,textarea.compact-input{height:30px;min-height:30px;padding:4px 8px;margin:0;font-size:1.2rem;line-height:20px;background:#0000004d;border-color:var(--ui-border);color:var(--ui-text)}textarea.compact-input{min-height:60px;resize:vertical}.page-indicator{display:flex;align-items:center;gap:.5rem;color:var(--ui-text)}.page-input{width:60px;padding:.25rem .5rem;font-size:1.3rem;border:1px solid var(--ui-border);border-radius:0;background:#0000004d;color:var(--ui-text);text-align:center}.zoom-indicator{min-width:4rem;text-align:center;font-size:1.3rem;color:var(--ui-text)}.viewer-loading,.viewer-error{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2rem;padding:2rem;color:#fff;width:100%;height:100vh;grid-column:1 / -1;grid-row:1 / -1}.viewer-loading .loading-spinner{width:64px;height:64px;border-width:5px}.viewer-error{background:#00000080;border-radius:8px}.loading-steps{display:flex;flex-direction:column;align-items:center;gap:1rem;margin-top:1.5rem}.loading-step-item{color:#fff6;font-size:1.1rem;font-weight:400;transition:all .3s ease}.loading-step-item.active{color:#fff;font-size:1.3rem;font-weight:500}.loading-step-item.completed{color:#fff9;text-decoration:line-through}.canvas-wrapper{position:relative;display:inline-block;box-shadow:0 4px 20px #0000004d}.pdf-canvas{display:block;background:#fff}.pdf-canvas--rendering{opacity:.7}.svg-overlay{position:absolute;top:0;left:0}.bim-overlay-panel{position:fixed;top:60px;right:0;width:360px;max-height:calc(100vh - 60px);overflow-y:auto;background:var(--ui-surface);border-left:2px solid var(--ui-border);z-index:200;display:flex;flex-direction:column;gap:.75rem;padding:1rem;font-size:1.2rem}.bim-overlay-panel-header{display:flex;align-items:center;justify-content:space-between}.bim-overlay-panel-title{font-weight:600;color:var(--ui-text)}.bim-overlay-panel-close{margin-left:auto}.bim-overlay-panel-hint{color:var(--ui-text-muted, rgba(255,255,255,.5));font-size:1.1rem;margin:0}.bim-overlay-rule-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.5rem}.bim-overlay-rule-item{display:flex;align-items:center;gap:.4rem;flex-wrap:wrap}.bim-overlay-rule-item input[type=checkbox]{flex-shrink:0}.bim-overlay-rule-item select{background:#0000004d;border:1px solid var(--ui-border);color:var(--ui-text);font-size:1.1rem;padding:2px 4px}.bim-overlay-rule-value{width:90px;background:#0000004d;border:1px solid var(--ui-border);color:var(--ui-text);font-size:1.1rem;padding:2px 6px}.bim-overlay-rule-item input[type=color]{width:28px;height:24px;padding:1px;border:1px solid var(--ui-border);background:none;cursor:pointer}.bim-overlay-panel-actions{display:flex;gap:.5rem;padding-top:.5rem;border-top:1px solid var(--ui-border)}