:root {
    --ink: #492d23;
    --muted: #766b66;
    --line: #e0d9c7;
    --paper: #f8f5ef;
    --canvas: #f1ebdf;
    --white: #fff;
    --accent: #8e7463;
    --green: #697f3e;
    --green-light: #eef1e5;
    --amber: #8e7463;
    --danger: #ff5743;
    --shadow: 0 18px 55px rgba(73, 45, 35, .14);
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; overflow: hidden; }
body { font-family: Inter, sans-serif; color: var(--ink); background: var(--paper); font-size: 13px; }
button, input, select { font: inherit; }
button { color: inherit; }
button:focus-visible, input:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.app-shell { height: 100%; display: flex; flex-direction: column; opacity: 1; transition: opacity .3s ease; }
.topbar { height: 68px; flex: 0 0 68px; display: grid; grid-template-columns: 320px 1fr auto; align-items: center; padding: 0 18px 0 22px; border-bottom: 1px solid var(--line); background: rgba(248,245,239,.97); position: relative; z-index: 30; }
.brand-lockup { display: flex; align-items: center; gap: 12px; letter-spacing: .15em; }
.brand-logo { display: block; width: 101px; height: 35px; object-fit: contain; object-position: left center; }
.brand-divider { display: block; width: 1px; height: 31px; flex: 0 0 1px; background: var(--line); }
.brand-copy { display: flex; flex-direction: column; gap: 1px; white-space: nowrap; }
.brand-lockup strong { font-size: 12px; }
.brand-lockup span { font-size: 7px; color: var(--muted); letter-spacing: .28em; }
.project-meta { justify-self: center; display: flex; align-items: center; gap: 14px; }
.project-meta .eyebrow { text-transform: uppercase; color: var(--muted); font-size: 9px; letter-spacing: .12em; border-right: 1px solid var(--line); padding-right: 14px; }
.project-meta strong { font-size: 12px; font-weight: 600; }
.save-status { color: var(--green); font-size: 10px; display: flex; align-items: center; gap: 6px; }
.save-status i { width: 6px; height: 6px; background: var(--green); border-radius: 50%; box-shadow: 0 0 0 4px rgba(105,127,62,.12); }
.top-actions { display: flex; align-items: center; gap: 8px; }
.text-button, .primary-button, .icon-button { border: 0; background: transparent; cursor: pointer; }
.text-button { padding: 10px 14px; font-size: 11px; font-weight: 600; }
.button-with-icon, .button-label { display: inline-flex; align-items: center; gap: 8px; }
.button-with-icon i, .button-label i { font-size: .92em; }
.primary-button { background: var(--ink); color: #fff; padding: 11px 14px; border-radius: 4px; display: flex; gap: 9px; align-items: center; font-weight: 600; font-size: 11px; }
.primary-button .action-arrow { margin-left: 4px; font-size: 9px; opacity: .75; }
.icon-button i, .quiet-icon i, .modal-close i { pointer-events: none; }
.mobile-panel-button { display: none; }

.workspace { flex: 1; min-height: 0; display: grid; grid-template-columns: 328px minmax(420px, 1fr) 326px; }
.panel-scroll { overflow-y: auto; scrollbar-width: thin; scrollbar-color: #c8cac4 transparent; }
.left-panel, .right-panel { background: var(--paper); position: relative; z-index: 10; }
.left-panel { border-right: 1px solid var(--line); }
.right-panel { min-height: 0; border-left: 1px solid var(--line); padding: 0; display: flex; flex-direction: column; overflow: hidden; }
.right-panel-scroll { min-height: 0; flex: 1 1 auto; padding: 0 18px 24px; }
.right-panel-footer { flex: 0 0 auto; padding: 14px 18px 18px; border-top: 1px solid var(--line); background: rgba(248,245,239,.97); box-shadow: 0 -10px 25px rgba(73,45,35,.06); }
.panel-heading { padding: 25px 21px 20px; display: flex; justify-content: space-between; align-items: flex-start; border-bottom: 1px solid var(--line); }
.step-kicker { display: block; color: var(--green); text-transform: uppercase; letter-spacing: .15em; font-size: 8px; font-weight: 700; margin-bottom: 7px; }
h1, h2 { font: 500 23px/1.1 Lora, serif; margin: 0; letter-spacing: -.01em; }
.model-pill { background: var(--line); color: var(--ink); padding: 4px 7px; border-radius: 2px; font-size: 8px; font-weight: 700; letter-spacing: .08em; }

.config-section { border-bottom: 1px solid var(--line); }
.section-trigger { width: 100%; height: 53px; border: 0; background: transparent; display: flex; align-items: center; justify-content: space-between; padding: 0 21px; cursor: pointer; font-weight: 600; font-size: 11px; }
.section-trigger b { font-size: 8px; color: #979b96; margin-right: 9px; letter-spacing: .08em; }
.section-trigger i { font-style: normal; color: #8b8e89; font-size: 15px; font-weight: 400; }
.section-content { display: none; padding: 0 21px 19px; }
.config-section.is-open .section-content { display: block; animation: reveal .22s ease; }
@keyframes reveal { from { opacity: 0; transform: translateY(-4px); } }
.field-label { display: block; font-size: 10px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 9px; }
.select-wrap { position: relative; }
.select-wrap::after { content: none; }
body select {
    width: 100%;
    min-height: 54px;
    appearance: none;
    border: 1px solid #d4c8b9;
    background-color: #fffdf9;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M2 2l5 5 5-5' fill='none' stroke='%23697f3e' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 20px center;
    background-size: 14px 9px;
    border-radius: 10px;
    padding: 15px 54px 15px 20px;
    color: var(--ink);
    cursor: pointer;
    font-weight: 600;
    font-size: 13px;
    line-height: 1.35;
    box-shadow: inset 0 1px 0 rgba(255,255,255,.92), 0 5px 15px rgba(73,45,35,.055);
    transition: border-color .2s ease, box-shadow .2s ease, background-color .2s ease, transform .2s ease;
}
body select:hover { border-color: #aa998c; background-color: #fff; box-shadow: inset 0 1px 0 #fff, 0 7px 18px rgba(73,45,35,.085); }
body select:focus { outline: none; border-color: var(--green); background-color: #fff; box-shadow: 0 0 0 3px rgba(105,127,62,.13), 0 8px 20px rgba(73,45,35,.08); }
body select:disabled { cursor: not-allowed; opacity: .58; box-shadow: none; }
body select option { color: var(--ink); background: #fff; font-weight: 500; }
.field-note { color: var(--muted); font-size: 10px; line-height: 1.55; margin: 9px 0 0; }
.section-intro { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.section-intro span { font-size: 9px; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); }
.section-intro small { font-size: 8px; color: #969a94; }
.module-library { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.module-card { border: 1px solid var(--line); min-height: 76px; background: #fff; border-radius: 6px; padding: 9px 6px 8px; cursor: grab; text-align: center; transition: border .2s, transform .2s, box-shadow .2s; }
.module-card:hover { border-color: var(--accent); transform: translateY(-1px); box-shadow: 0 5px 12px rgba(73,45,35,.08); }
.module-card:active { cursor: grabbing; }
.module-card.start-disabled { opacity: .34; cursor: not-allowed; filter: grayscale(1); }
.module-glyph { height: 31px; display: grid; place-items: center; }
.module-glyph i { width: 42px; height: 18px; background: var(--line); border: 1px solid #cdb297; border-radius: 4px 4px 2px 2px; position: relative; }
.module-glyph i::after { content: ''; position: absolute; left: 3px; right: 3px; top: 5px; border-top: 1px solid #b3b1a8; }
.module-card strong { display: block; font-size: 9px; line-height: 1.25; font-weight: 600; }
.module-card small { display: block; font-size: 8px; color: #8e938d; margin-top: 3px; }
.choice-stack { display: grid; gap: 8px; }
.choice-row { min-height: 56px; display: flex; align-items: center; gap: 12px; border: 1px solid #d2cabd; background: #fff; border-radius: 6px; padding: 11px 12px; cursor: pointer; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
.choice-row:hover { border-color: #aa998c; background: #fffdf9; }
.choice-row.active { border-color: var(--green); box-shadow: inset 3px 0 var(--green); }
.choice-row input { width: 18px; height: 18px; flex: 0 0 auto; accent-color: var(--green); }
.choice-row .color-dot { width: 23px; height: 23px; border-radius: 50%; border: 1px solid #c5c6c0; flex: 0 0 auto; }
.choice-row div { flex: 1; }
.choice-row strong { display: block; font-size: 11px; }
.choice-row small { display: block; margin-top: 3px; font-size: 9px; color: var(--muted); }

.viewport-shell { background: var(--canvas); position: relative; overflow: hidden; min-width: 0; }
.viewport-shell::before { content: ''; position: absolute; inset: 0; opacity: .32; background-image: radial-gradient(#cdb297 .5px, transparent .5px); background-size: 18px 18px; mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 70%, transparent); pointer-events: none; }
.scene-canvas { position: absolute; inset: 0; }
.scene-canvas canvas { display: block; width: 100%; height: 100%; }
.empty-stage { position: absolute; z-index: 6; left: 50%; top: 50%; transform: translate(-50%,-50%); text-align: center; pointer-events: none; }
.empty-stage span { display: block; color: var(--green); text-transform: uppercase; letter-spacing: .16em; font-size: 8px; font-weight: 700; }
.empty-stage strong { display: block; margin-top: 8px; font: 500 25px Lora, serif; }
.empty-stage p { margin: 6px 0 0; color: var(--muted); font-size: 9px; }
.viewport-top { position: absolute; left: 19px; right: 19px; top: 17px; z-index: 5; display: flex; justify-content: space-between; pointer-events: none; }
.view-tabs, .viewport-tools { pointer-events: auto; display: flex; background: rgba(248,245,239,.9); border: 1px solid rgba(224,217,199,.95); backdrop-filter: blur(12px); border-radius: 5px; box-shadow: 0 7px 20px rgba(73,45,35,.06); }
.view-tabs button, .tool-button { border: 0; background: transparent; padding: 8px 10px; cursor: pointer; font-size: 9px; color: var(--muted); border-right: 1px solid var(--line); }
.tool-button { display: inline-flex; align-items: center; justify-content: center; gap: 6px; min-width: 31px; }
.tool-button i { font-size: 10px; }
.view-tabs button:last-child, .tool-button:last-child { border-right: 0; }
.view-tabs button.active { background: var(--ink); color: white; margin: 3px; padding: 5px 10px; border-radius: 3px; }
.tool-button[aria-pressed="true"] { color: var(--green); background: var(--green-light); }
.connection-layer { position: absolute; inset: 0; z-index: 7; pointer-events: none; }
.connection-point { position: absolute; width: 31px; height: 31px; border-radius: 50%; border: 2px solid #fff; background: var(--green); color: #fff; box-shadow: 0 4px 15px rgba(105,127,62,.34); display: grid; place-items: center; pointer-events: auto; cursor: pointer; transform: translate(-50%, -50%); font-size: 18px; font-weight: 400; transition: transform .2s, background .2s; }
.connection-point:hover { transform: translate(-50%, -50%) scale(1.13); }
.connection-point.drag-invalid { background: var(--danger); opacity: .45; }
.connection-point.drag-valid { animation: pulse 1.2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 9px rgba(55,100,75,.12); } }
.scene-loading { position: absolute; inset: 0; z-index: 15; background: var(--canvas); display: grid; place-content: center; justify-items: center; gap: 13px; text-transform: uppercase; letter-spacing: .13em; font-size: 8px; color: var(--muted); transition: opacity .5s; }
.scene-loading.done { opacity: 0; pointer-events: none; }
.loading-orbit { width: 35px; height: 35px; border: 1px solid #a7aba5; border-top-color: var(--green); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.drag-hint { position: absolute; z-index: 10; top: 72px; left: 50%; transform: translateX(-50%) translateY(-8px); padding: 7px 12px; color: white; background: var(--ink); border-radius: 20px; font-size: 9px; opacity: 0; pointer-events: none; transition: .2s; }
.drag-hint.visible { transform: translateX(-50%) translateY(0); opacity: 1; }
.viewport-foot { position: absolute; left: 20px; right: 20px; bottom: 15px; z-index: 5; display: flex; align-items: flex-end; justify-content: space-between; pointer-events: none; }
.viewport-foot-left { min-width: 0; display: flex; align-items: flex-end; gap: 17px; pointer-events: auto; }
.dimension-strip { display: flex; background: rgba(248,245,239,.92); border: 1px solid var(--line); border-radius: 4px; backdrop-filter: blur(10px); }
.dimension-item { padding: 8px 11px; border-right: 1px solid #dedfd9; }
.dimension-item:last-child { border: 0; }
.dimension-item span { display: block; font-size: 7px; text-transform: uppercase; letter-spacing: .09em; color: var(--muted); }
.dimension-item strong { font-size: 10px; }
.viewport-materials { min-height: 39px; display: flex; align-items: flex-end; gap: 8px; padding: 0 3px 2px; }
.viewport-swatch { position: relative; width: 27px; height: 27px; flex: 0 0 27px; border: 3px solid rgba(248,245,239,.92); border-radius: 50%; cursor: pointer; box-shadow: 0 0 0 1px rgba(73,45,35,.24), 0 4px 12px rgba(73,45,35,.12); transition: transform .18s ease, box-shadow .18s ease; }
.viewport-swatch:hover { transform: translateY(-2px) scale(1.06); box-shadow: 0 0 0 2px var(--accent), 0 6px 14px rgba(73,45,35,.16); }
.viewport-swatch.active { transform: translateY(-1px); box-shadow: 0 0 0 2px var(--paper), 0 0 0 4px var(--ink), 0 7px 15px rgba(73,45,35,.18); }
.viewport-swatch.active::before { content: attr(data-label); position: absolute; z-index: 2; left: 50%; bottom: calc(100% + 16px); transform: translateX(-50%); padding: 5px 9px 4px; border-radius: 999px; background: var(--ink); color: #fff; font-size: 7px; font-weight: 700; letter-spacing: .08em; line-height: 1; white-space: nowrap; box-shadow: 0 5px 13px rgba(73,45,35,.2); }
.viewport-swatch.active::after { content: ''; position: absolute; left: 50%; bottom: calc(100% + 4px); width: 1px; height: 12px; transform: translateX(-50%); background: var(--ink); box-shadow: 0 1px 0 rgba(248,245,239,.6); }
.navigation-hint { display: flex; align-items: center; gap: 5px; color: #7e827c; font-size: 7px; }
.navigation-hint span { color: #444a45; font-weight: 700; }
.navigation-hint i { width: 1px; height: 9px; background: #b5b7b1; margin: 0 4px; }

.inspector-heading { height: 75px; display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); }
.inspector-heading h2 { font-size: 21px; }
.quiet-icon { border: 0; background: transparent; font-size: 20px; color: #999; display: none; }
.selected-properties { padding: 16px 0; border-bottom: 1px solid var(--line); }
.selected-empty { color: var(--muted); line-height: 1.6; font-size: 10px; }
.property-hero { display: flex; gap: 10px; align-items: center; margin-bottom: 14px; }
.property-thumb { width: 46px; height: 42px; border-radius: 4px; background: var(--line); display: grid; place-items: center; }
.property-thumb i { width: 30px; height: 15px; background: #cdb297; border-radius: 3px; }
.property-hero strong { display: block; font-size: 11px; }
.property-hero span { display: block; font-size: 8px; color: var(--muted); margin-top: 3px; }
.property-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.property-grid div { background: #fff; padding: 8px; }
.property-grid span { display: block; font-size: 7px; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; }
.property-grid strong { display: block; font-size: 9px; margin-top: 2px; }
.remove-module { width: 100%; margin-top: 11px; border: 1px solid #ffd0c9; background: #fff; color: #d63e2b; border-radius: 5px; padding: 10px; font-size: 10px; cursor: pointer; display: flex; align-items: center; justify-content: center; gap: 8px; transition: border-color .18s ease, background .18s ease; }
.remove-module:hover { border-color: #ef9f94; background: #fff7f5; }
.remove-module i { font-size: 10px; }
.variant-field { display: block; margin-top: 10px; }
.variant-field > span { display: block; margin-bottom: 8px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .09em; font-size: 9px; }
.variant-field select { font-size: 13px; }
.validation-card { margin: 16px 0 0; border: 1px solid #d8dfc5; background: var(--green-light); border-radius: 5px; padding: 12px; }
.validation-card.has-errors { border-color: #ffd0c9; background: #fff0ed; }
.validation-head { display: flex; align-items: center; gap: 8px; }
.validation-icon { width: 22px; height: 22px; border-radius: 50%; background: var(--green); color: #fff; display: grid; place-items: center; font-size: 10px; }
.has-errors .validation-icon { background: var(--danger); }
.validation-head strong { font-size: 9px; }
.validation-head span { display: block; color: var(--muted); font-size: 7px; margin-top: 1px; }
.issue-list { list-style: none; padding: 0; margin: 9px 0 0; }
.issue-list li { border-top: 1px solid rgba(105,127,62,.18); padding-top: 8px; margin-top: 7px; font-size: 8px; line-height: 1.45; }
.suggestion-section { margin-top: 16px; }
.suggestion-section > strong { display: block; text-transform: uppercase; letter-spacing: .1em; font-size: 8px; color: var(--muted); margin-bottom: 7px; }
.suggestion { padding: 9px 10px; border-left: 2px solid var(--accent); background: var(--canvas); margin-bottom: 5px; }
.suggestion strong { display: block; font-size: 8px; }
.suggestion span { display: block; color: var(--muted); font-size: 7px; line-height: 1.45; margin-top: 2px; }
.element-overview-card { margin-top: 17px; padding-top: 16px; border-top: 1px solid var(--line); }
.element-overview-heading { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.element-overview-heading span { font-size: 10px; font-weight: 700; }
.element-overview-heading small { color: var(--muted); font-size: 7px; }
.element-overview { display: grid; gap: 4px; }
.element-overview-row { width: 100%; border: 1px solid var(--line); background: #fff; border-radius: 4px; padding: 8px; display: grid; grid-template-columns: 22px 1fr auto; gap: 7px; align-items: center; text-align: left; cursor: pointer; }
.element-overview-row:hover, .element-overview-row.selected { border-color: var(--accent); background: var(--canvas); }
.element-overview-row > span { width: 20px; height: 20px; display: grid; place-items: center; border-radius: 50%; background: var(--line); color: var(--ink); font-size: 7px; font-weight: 700; }
.element-overview-row strong { display: block; font-size: 8px; }
.element-overview-row small { display: block; margin-top: 2px; color: var(--muted); font-size: 6px; }
.element-overview-row code { color: var(--accent); font: 600 6px Inter, sans-serif; }
.element-overview-empty { margin: 0; padding: 10px; background: #efefeb; color: var(--muted); font-size: 8px; line-height: 1.5; }
.order-button { width: 100%; min-height: 58px; margin: 0; border: 0; background: var(--ink); color: white; border-radius: 8px; padding: 14px 15px 14px 19px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-size: 12px; font-weight: 700; letter-spacing: .01em; box-shadow: 0 9px 22px rgba(73,45,35,.22); transition: transform .18s ease, box-shadow .18s ease, background .18s ease; }
.order-button:hover { background: #5a382c; transform: translateY(-1px); box-shadow: 0 12px 26px rgba(73,45,35,.27); }
.order-button b { width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; background: rgba(255,255,255,.13); font-size: 14px; }
.order-button b i { font-size: 10px; }
.order-button:disabled { opacity: .45; cursor: not-allowed; }
.order-button:disabled:hover { transform: none; box-shadow: 0 9px 22px rgba(73,45,35,.16); }

.chooser-popover { position: fixed; z-index: 70; width: 260px; background: #fff; border: 1px solid var(--line); border-radius: 6px; box-shadow: var(--shadow); overflow: hidden; }
.chooser-head { padding: 12px 13px; background: var(--paper); display: flex; justify-content: space-between; }
.chooser-head span { display: block; text-transform: uppercase; font-size: 7px; letter-spacing: .1em; color: var(--muted); }
.chooser-head strong { font-size: 10px; }
.chooser-head button { border: 0; background: none; cursor: pointer; }
.chooser-head button i { font-size: 13px; }
.chooser-options { max-height: 280px; overflow: auto; padding: 6px; }
.chooser-option { width: 100%; border: 0; background: #fff; padding: 9px; display: flex; justify-content: space-between; text-align: left; cursor: pointer; border-radius: 3px; }
.chooser-option:hover { background: var(--green-light); }
.chooser-option strong { font-size: 9px; }
.chooser-option small { color: var(--muted); font-size: 8px; }

.presentation { position: fixed; inset: 0; z-index: 100; background: #2d1b15; color: white; visibility: hidden; opacity: 0; transition: opacity .45s ease, visibility .45s; overflow: hidden; }
.presentation.active { visibility: visible; opacity: 1; }
.presentation-backdrop { position: absolute; inset: 0; background: radial-gradient(circle at 57% 40%, #8e7463 0, #492d23 40%, #1d120e 82%); }
.presentation header { position: absolute; top: 0; left: 0; right: 0; z-index: 4; height: 105px; display: flex; align-items: flex-start; justify-content: space-between; padding: 22px 42px 0 48px; }
.presentation-logo { display: block; width: 165px; height: 58px; object-fit: contain; object-position: left center; filter: brightness(0) invert(1); }
.presentation header button { border: 1px solid rgba(255,255,255,.25); background: rgba(255,255,255,.05); color: white; border-radius: 20px; padding: 8px 13px; cursor: pointer; font-size: 9px; display: flex; align-items: center; gap: 7px; }
.presentation-copy { position: absolute; z-index: 3; left: 6vw; top: 25%; width: 350px; pointer-events: none; }
.presentation-kicker { text-transform: uppercase; letter-spacing: .22em; font-size: 8px; color: #b6c0b6; }
.presentation-copy h2 { font-family: Lora, serif; font-size: clamp(56px, 7vw, 94px); margin-top: 10px; }
.presentation-copy p { max-width: 300px; color: #c5cac4; line-height: 1.7; font-size: 11px; }
.presentation-parts { width: min(310px, 76vw); margin-top: 22px; padding-top: 13px; border-top: 1px solid rgba(255,255,255,.17); }
.presentation-parts > span { display: block; color: #adb6ae; font-size: 7px; font-weight: 600; letter-spacing: .15em; text-transform: uppercase; }
.presentation-parts ol { max-height: 25vh; overflow: hidden auto; list-style: none; padding: 0; margin: 9px 0 0; scrollbar-width: thin; }
.presentation-parts li { min-height: 25px; display: grid; grid-template-columns: 23px minmax(0,1fr) auto; align-items: center; gap: 7px; color: rgba(255,255,255,.86); border-bottom: 1px solid rgba(255,255,255,.08); font-size: 9px; }
.presentation-parts li b { color: #97a297; font-size: 7px; font-weight: 500; }
.presentation-parts li span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.presentation-parts li small { color: #9fa8a0; font-size: 6px; letter-spacing: .05em; }
.presentation-scene { position: absolute; inset: 0; z-index: 2; }
.presentation-summary { position: absolute; z-index: 4; bottom: 30px; left: 50%; transform: translateX(-50%); width: min(880px, 88vw); background: rgba(248,245,239,.95); backdrop-filter: blur(18px); color: var(--ink); border-radius: 6px; padding: 15px 16px 15px 21px; display: grid; grid-template-columns: 1fr 1fr 1fr auto; align-items: center; gap: 25px; box-shadow: var(--shadow); }
.presentation-summary div { border-right: 1px solid #d4d5cf; }
.presentation-summary span { display: block; text-transform: uppercase; color: var(--muted); font-size: 7px; letter-spacing: .1em; }
.presentation-summary strong { display: block; font-size: 11px; margin-top: 4px; }
.presentation-summary button { border: 0; background: var(--accent); color: #fff; border-radius: 4px; padding: 13px 17px; display: flex; align-items: center; gap: 25px; cursor: pointer; font-size: 10px; font-weight: 700; }
.presentation-summary button > span { display: inline-flex; align-items: center; gap: 8px; color: inherit; font-size: inherit; font-weight: inherit; letter-spacing: 0; text-transform: none; }
.presentation-summary button b i { font-size: 9px; }

.modal { position: fixed; inset: 0; z-index: 130; visibility: hidden; opacity: 0; transition: .25s; display: grid; place-items: center; }
.modal.active { visibility: visible; opacity: 1; }
.modal-scrim { position: absolute; inset: 0; background: rgba(73,45,35,.68); backdrop-filter: blur(5px); }
.sign-dialog, .success-dialog { position: relative; max-height: calc(100vh - 30px); overflow: auto; background: var(--paper); border-radius: 7px; box-shadow: 0 30px 100px rgba(73,45,35,.30); }
.sign-dialog { width: min(1040px, calc(100vw - 40px)); display: grid; grid-template-columns: minmax(360px,.92fr) minmax(470px,1.08fr); overflow: hidden; }
.success-dialog { width: min(470px, calc(100vw - 30px)); padding: 29px; }
.modal-close { position: absolute; right: 18px; top: 14px; width: 30px; height: 30px; display: grid; place-items: center; border: 0; background: none; font-size: 17px; cursor: pointer; color: #8b8e88; }
.sign-dialog h2, .success-dialog h2 { font-size: 30px; }
.sign-form > p, .success-dialog > p { color: var(--muted); font-size: 10px; line-height: 1.6; }
.sign-review { min-width: 0; padding: 28px; background: #eee8dd; border-right: 1px solid var(--line); display: flex; flex-direction: column; }
.sign-review-heading { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.sign-review-heading h3 { margin: 0; font: 500 25px Lora,serif; }
.sign-review-heading small { color: var(--muted); font-size: 8px; text-align: right; }
.sign-preview { height: 245px; margin: 15px 0 10px; border: 1px solid rgba(73,45,35,.09); border-radius: 5px; background: radial-gradient(circle at 55% 35%,#faf7f0,#ddd4c4); overflow: hidden; position: relative; }
.sign-preview canvas { display: block; width: 100%; height: 100%; }
.sign-review-meta { display: flex; justify-content: space-between; gap: 12px; padding-bottom: 13px; color: var(--muted); font-size: 8px; }
.sign-review-meta strong { color: var(--ink); font-size: 8px; }
.sign-parts-heading { display: flex; justify-content: space-between; padding: 10px 0 7px; border-top: 1px solid rgba(73,45,35,.12); color: var(--muted); text-transform: uppercase; letter-spacing: .09em; font-size: 7px; }
.sign-parts-list { min-height: 0; max-height: 185px; overflow: auto; list-style: none; padding: 0; margin: 0; scrollbar-width: thin; }
.sign-parts-list li { display: grid; grid-template-columns: 24px minmax(0,1fr) auto; align-items: center; gap: 8px; min-height: 34px; border-top: 1px solid rgba(73,45,35,.08); font-size: 9px; }
.sign-parts-list li b { color: #9a9189; font-size: 7px; }
.sign-parts-list li span { min-width: 0; }
.sign-parts-list li span strong, .sign-parts-list li span small { display: block; }
.sign-parts-list li span small { margin-top: 2px; color: var(--muted); font-size: 7px; }
.sign-parts-list li code { color: var(--accent); font: 600 7px Inter,sans-serif; }
.sign-parts-list li.service { margin-top: 4px; padding: 3px 7px; border: 1px solid #d8dfc5; border-radius: 5px; background: var(--green-light); }
.sign-parts-list li.service b { width: 18px; height: 18px; display: grid; place-items: center; border-radius: 50%; background: var(--green); color: #fff; }
.sign-form { min-width: 0; padding: 34px 36px 30px; }
.customer-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 23px; }
.customer-grid label span, .signature-label span { display: block; font-size: 9px; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 8px; }
.customer-grid input { width: 100%; min-height: 48px; border: 1px solid #cec6ba; background: #fff; border-radius: 6px; padding: 13px 14px; color: var(--ink); font-size: 12px; line-height: 1.3; transition: border-color .2s ease, box-shadow .2s ease, background .2s ease; }
.customer-grid input::placeholder { color: #aaa39b; }
.customer-grid input:hover { border-color: #aa998c; }
.customer-grid input:focus { outline: none; border-color: var(--accent); background: #fffdf9; box-shadow: 0 0 0 3px rgba(142,116,99,.14); }
.signature-label { margin-top: 14px; display: flex; justify-content: space-between; align-items: center; }
.signature-label button { border: 0; background: none; font-size: 8px; text-decoration: underline; cursor: pointer; display: inline-flex; align-items: center; gap: 5px; }
.signature-wrap { height: 135px; border: 1px solid #cdd0c9; background: white; border-radius: 4px; position: relative; overflow: hidden; }
.signature-wrap canvas { width: 100%; height: 100%; touch-action: none; display: block; }
.signature-wrap small { position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%); pointer-events: none; color: #cdb297; font: 18px Lora, serif; }
.signature-wrap.has-signature small { display: none; }
.consent { display: flex; align-items: flex-start; gap: 10px; margin-top: 14px; color: #5f645f; font-size: 9px; line-height: 1.5; }
.consent input { width: 17px; height: 17px; flex: 0 0 auto; margin: 0; accent-color: var(--green); }
.sign-error { color: var(--danger); min-height: 16px; margin-top: 7px; font-size: 8px; }
.sign-submit { width: 100%; border: 0; background: var(--ink); color: white; padding: 13px 15px; border-radius: 4px; display: flex; align-items: center; justify-content: space-between; cursor: pointer; font-weight: 700; font-size: 10px; }
.sign-submit-label { display: inline-flex; align-items: center; gap: 8px; }
.sign-submit > i { font-size: 9px; opacity: .75; }
.sign-submit:disabled { opacity: .55; }
.success-dialog { text-align: center; }
.success-mark { width: 50px; height: 50px; margin: 0 auto 17px; border-radius: 50%; display: grid; place-items: center; background: var(--green); color: #fff; font-size: 20px; }
.success-dialog code { display: block; word-break: break-all; background: #eceee9; padding: 9px; border-radius: 4px; font-size: 7px; color: #656b66; }
.pdf-button { display: flex; align-items: center; justify-content: space-between; margin: 16px 0 7px; background: var(--ink); color: #fff; text-decoration: none; padding: 12px 14px; border-radius: 4px; font-size: 10px; }
.pdf-button span { display: inline-flex; align-items: center; gap: 8px; }
.pdf-button > i { font-size: 9px; opacity: .75; }
.toast-region { position: fixed; right: 18px; bottom: 18px; z-index: 200; display: grid; gap: 8px; }
.toast { background: var(--ink); color: #fff; box-shadow: var(--shadow); padding: 11px 14px; border-radius: 4px; font-size: 9px; animation: toast-in .3s ease; }
@keyframes toast-in { from { opacity: 0; transform: translateY(10px); } }

@media (max-width: 1120px) {
    .workspace { grid-template-columns: 290px minmax(380px, 1fr) 286px; }
    .topbar { grid-template-columns: 290px 1fr auto; }
    .project-meta .eyebrow, .navigation-hint, .tool-button span { display: none; }
}

@media (max-width: 1500px) {
    .navigation-hint { display: none; }
}

@media (max-width: 860px) {
    .topbar { grid-template-columns: 1fr auto; height: 60px; flex-basis: 60px; }
    .project-meta { display: none; }
    .top-actions .text-button { display: none; }
    .mobile-panel-button { display: block; font-size: 18px; }
    .workspace { display: block; position: relative; }
    .left-panel, .right-panel { position: absolute; top: 0; bottom: 0; width: min(340px, 90vw); z-index: 50; box-shadow: var(--shadow); transition: transform .3s ease; }
    .left-panel { left: 0; transform: translateX(-105%); }
    .right-panel { right: 0; transform: translateX(105%); }
    body.show-left .left-panel { transform: translateX(0); }
    body.show-right .right-panel { transform: translateX(0); }
    .quiet-icon { display: block; }
    .viewport-shell { height: 100%; }
    .viewport-top { top: 10px; left: 10px; right: 10px; }
    .dimension-strip .dimension-item:nth-child(n+4) { display: none; }
    .presentation-copy { top: 16%; left: 7vw; }
    .presentation-copy h2 { font-size: 50px; }
    .presentation-summary { grid-template-columns: 1fr 1fr; gap: 12px; }
    .presentation-summary div { border: 0; }
    .presentation-summary button { grid-column: 1 / -1; justify-content: space-between; }
    .sign-dialog { width: min(680px, calc(100vw - 24px)); max-height: calc(100vh - 24px); grid-template-columns: 1fr; overflow: auto; }
    .sign-review { border-right: 0; border-bottom: 1px solid var(--line); }
    .sign-preview { height: 220px; }
    .sign-parts-list { max-height: 150px; }
}

@media (max-width: 560px) {
    .brand-logo { width: 82px; height: 29px; }
    .brand-divider { height: 27px; }
    .primary-button { padding: 10px 12px; }
    .view-tabs button { padding: 7px; }
    .viewport-tools .tool-button { padding: 7px 9px; }
    .dimension-strip .dimension-item:nth-child(n+3) { display: none; }
    .viewport-foot-left { gap: 11px; }
    .viewport-materials { gap: 6px; }
    .viewport-swatch { width: 24px; height: 24px; flex-basis: 24px; }
    .presentation header { height: 86px; padding: 16px 20px 0 24px; }
    .presentation-logo { width: 138px; height: 48px; }
    .presentation-copy { top: 14%; width: 85vw; }
    .presentation-parts { margin-top: 12px; }
    .presentation-parts ol { max-height: 18vh; }
    .presentation-summary { bottom: 12px; padding: 12px; }
    .presentation-summary div:nth-child(2) { display: none; }
    .customer-grid { grid-template-columns: 1fr; }
    .sign-review { padding: 22px 18px; }
    .sign-preview { height: 190px; }
    .sign-form { padding: 26px 19px 22px; }
}