:root {
    --bg: #ece7df;
    --desk-pattern: linear-gradient(to right, rgba(94, 82, 66, 0.06) 1px, transparent 1px),
                    linear-gradient(to bottom, rgba(94, 82, 66, 0.06) 1px, transparent 1px);
    --desk-size: 24px 24px;
    --surface: #fcfaf6;
    --surface-muted: #f3efe7;
    --stage-bg: #dfd9cd;
    --stage-pattern: linear-gradient(to right, rgba(64, 56, 44, 0.08) 1px, transparent 1px),
                     linear-gradient(to bottom, rgba(64, 56, 44, 0.08) 1px, transparent 1px);
    --ruler-bg: rgba(252, 250, 246, 0.88);
    --ruler-text: #5f584d;
    --ruler-tick: #8c8273;
    --border: #dcd4c6;
    --border-strong: #c4b9a6;
    --text: #1c1917;
    --text-soft: #3a3531;
    --text-muted: #6f675d;
    --primary: #1b5e57;
    --primary-hover: #144943;
    --primary-soft: #e6f2ef;
    --primary-ring: rgba(27, 94, 87, 0.16);
    --cta-bg: #1b5e57;
    --cta-hover: #144943;
    --badge-bg: #f6e7d8;
    --badge-border: #dfb89c;
    --badge-text: #7c3f1d;
    --chip-bg: #f7f1e3;
    --chip-border: #cfc2a9;
    --font-display: 'Fraunces', Georgia, serif;
    --font-ui: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
    --card-radius: 13px;
    --card-shadow: 0 2px 6px rgba(42, 34, 24, 0.06), 0 1px 2px rgba(42, 34, 24, 0.04);
    --sheet-shadow: 0 14px 34px rgba(42, 34, 24, 0.16), 0 2px 6px rgba(42, 34, 24, 0.08);
    --live-border: #ff6600;
}

*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    background-image: var(--desk-pattern);
    background-size: var(--desk-size);
    color: var(--text);
    font-family: var(--font-ui);
    font-size: 14px;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.22s ease, color 0.18s ease;
}

/* Header */
.topbar {
    position: sticky;
    top: 0;
    z-index: 30;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
}

.topbar-inner {
    max-width: 1420px;
    margin: 0 auto;
    padding: 10px 22px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
}

.brand {
    display: flex;
    align-items: center;
    gap: 11px;
}

.brand-logo {
    width: 34px;
    height: 34px;
    border-radius: 9px;
    object-fit: cover;
    border: 1px solid var(--border-strong);
}

.brand-title-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 1.24rem;
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.015em;
    color: var(--text);
}

.live-ink-pill {
    display: inline-flex;
    align-items: center;
    padding: 2px;
    border-radius: 999px;
    border: 1px solid var(--border-strong);
    background: var(--surface-muted);
}

.live-ink-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    background: var(--live-border, #87deaa);
    border: 1px solid rgba(15, 23, 42, 0.18);
    transition: background-color 0.2s ease;
}

.brand-subtitle {
    margin: 2px 0 0;
    font-size: 0.76rem;
    color: var(--text-muted);
    font-weight: 500;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.action-divider {
    width: 1px;
    height: 20px;
    background: var(--border);
    margin: 0 3px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text-soft);
    font-family: var(--font-ui);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 6px 12px;
    border-radius: 8px;
    cursor: pointer;
    white-space: nowrap;
    flex-shrink: 0;
    transition: background-color 0.15s, border-color 0.15s, color 0.15s, transform 0.08s;
}

.btn:hover {
    background: var(--surface-muted);
    border-color: var(--text-muted);
    color: var(--text);
}

.btn:active {
    transform: translateY(1px);
}

.btn svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.btn-primary {
    background: var(--cta-bg);
    border-color: var(--cta-bg);
    color: #ffffff;
    box-shadow: 0 2px 6px rgba(15, 23, 42, 0.16);
}

.btn-primary:hover {
    background: var(--cta-hover);
    border-color: var(--cta-hover);
    color: #ffffff;
}

.btn-ghost {
    border-color: transparent;
    background: transparent;
    color: var(--text-muted);
}

.btn-ghost:hover {
    background: var(--surface-muted);
    color: var(--text);
    border-color: var(--border);
}

.btn-sm {
    padding: 5px 11px;
    font-size: 0.76rem;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Main Workspace */
.workspace {
    max-width: 1420px;
    margin: 0 auto;
    padding: 20px 22px 36px;
    display: grid;
    grid-template-columns: minmax(340px, 415px) minmax(0, 1fr);
    gap: 22px;
    align-items: start;
}

/* Left Column */
.controls-col {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

/* Unified Zero-Scroll Tabbed Inspector */
.inspector-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    overflow: hidden;
}

.inspector-tabs {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    background: var(--surface-muted);
    border-bottom: 1px solid var(--border);
    padding: 5px;
    gap: 4px;
}

.tab-btn {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.81rem;
    font-weight: 700;
    padding: 8px 10px;
    border-radius: calc(var(--card-radius) - 7px);
    cursor: pointer;
    transition: background-color 0.15s, color 0.15s, box-shadow 0.15s;
}

.tab-btn:hover {
    color: var(--text);
}

.tab-btn.active {
    background: var(--surface);
    color: var(--primary);
    box-shadow: 0 1px 4px rgba(15, 23, 42, 0.08);
}

.tab-panel {
    display: none;
    padding: 16px 18px 18px;
    flex-direction: column;
    gap: 15px;
}

.tab-panel.active {
    display: flex;
}

.stack-gap-sm {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.section-divider {
    height: 1px;
    background: var(--border);
}

/* Fine-Tune Groups */
.tune-group {
    display: flex;
    flex-direction: column;
    gap: 11px;
    padding-bottom: 13px;
    border-bottom: 1px solid var(--border);
}

.tune-group:last-of-type {
    padding-bottom: 0;
    border-bottom: none;
}

.tune-heading {
    margin: 0;
    font-family: var(--font-display);
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary);
}

/* Field Controls */
.field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 11px;
}

.field-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.field-label {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-soft);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.val-pill {
    font-family: var(--font-mono);
    background: var(--surface-muted);
    border: 1px solid var(--border);
    color: var(--text-soft);
    border-radius: 999px;
    padding: 1px 8px;
    font-size: 0.7rem;
    font-weight: 600;
}

input[type="text"],
input[type="url"],
select,
textarea {
    width: 100%;
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text);
    border-radius: 8px;
    padding: 7px 10px;
    font-family: var(--font-ui);
    font-size: 0.84rem;
    font-weight: 600;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"]:focus,
input[type="url"]:focus,
select:focus,
textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-ring);
}

input[type="range"] {
    width: 100%;
    accent-color: var(--primary);
    cursor: pointer;
    margin: 2px 0;
}

/* 2x2 Layout Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.template-card {
    position: relative;
    border: 1.5px solid var(--border);
    background: var(--surface-muted);
    border-radius: 10px;
    padding: 10px 8px 9px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    cursor: pointer;
    font-family: var(--font-ui);
    text-align: center;
    transition: border-color 0.15s, background-color 0.15s, box-shadow 0.15s;
}

.template-card:hover {
    border-color: var(--border-strong);
    background: var(--surface);
}

.template-card.active {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 0 2px var(--primary-ring);
}

.template-badge {
    position: absolute;
    top: -7px;
    right: 8px;
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    color: var(--badge-text);
    font-size: 0.62rem;
    font-weight: 800;
    padding: 1px 6px;
    border-radius: 999px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.template-thumb {
    width: 42px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.template-name {
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--text);
    line-height: 1.15;
}

.template-sub {
    font-size: 0.67rem;
    font-weight: 600;
    color: var(--text-muted);
    line-height: 1.1;
}

/* Segmented Controls */
.segmented {
    display: flex;
    background: var(--surface-muted);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 3px;
    gap: 3px;
}

.segmented.compact {
    padding: 2px;
    gap: 2px;
}

.segmented.compact .seg-btn {
    padding: 3px 9px;
    font-size: 0.72rem;
    flex: 0 0 auto;
}

.seg-btn {
    flex: 1;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-family: var(--font-ui);
    font-size: 0.76rem;
    font-weight: 700;
    padding: 5px 8px;
    border-radius: 6px;
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.14s, color 0.14s, box-shadow 0.14s;
}

.seg-btn:hover {
    color: var(--text);
}

.seg-btn.active {
    background: var(--surface);
    color: var(--primary);
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
}

/* Color Swatches */
.swatch-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 7px;
    align-items: center;
}

.swatch-grid.compact {
    gap: 6px;
}

.swatch-btn {
    width: 23px;
    height: 23px;
    border-radius: 999px;
    border: 2px solid rgba(15, 23, 42, 0.16);
    cursor: pointer;
    padding: 0;
    transition: transform 0.12s, box-shadow 0.12s;
}

.swatch-grid.compact .swatch-btn {
    width: 19px;
    height: 19px;
}

.swatch-btn:hover {
    transform: scale(1.1);
}

.swatch-btn.active {
    border-color: var(--text);
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 3.6px var(--primary);
}

.custom-swatch-label {
    position: relative;
    width: 23px;
    height: 23px;
    border-radius: 999px;
    border: 2px dashed rgba(15, 23, 42, 0.28);
    background: conic-gradient(#ef4444, #f59e0b, #10b981, #3b82f6, #8b5cf6, #ef4444);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    overflow: hidden;
    flex-shrink: 0;
    transition: transform 0.12s, box-shadow 0.12s;
}

.custom-swatch-label:hover {
    transform: scale(1.1);
}

.custom-swatch-label.active {
    border-style: solid;
    border-color: var(--text);
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 3.6px var(--primary);
}

.custom-swatch-label input[type="color"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    width: 100%;
    height: 100%;
    margin: 0;
    cursor: pointer;
    padding: 0;
    border: none;
    -webkit-appearance: none;
    appearance: none;
}

.color-input-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

input[type="color"].color-box {
    width: 34px;
    height: 31px;
    padding: 2px;
    border: 1px solid var(--border-strong);
    border-radius: 8px;
    background: var(--surface);
    cursor: pointer;
    flex-shrink: 0;
}

.hex-input {
    font-family: var(--font-mono) !important;
    font-size: 0.8rem !important;
    text-transform: uppercase;
    max-width: 102px;
}

.auto-accent-chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: var(--surface-muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 2px 8px 2px 5px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
}

.auto-accent-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.2);
}

/* Smooth Pill Switch */
.switch-control {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    cursor: pointer;
    user-select: none;
}

.switch-label-text {
    font-size: 0.81rem;
    font-weight: 700;
    color: var(--text-soft);
}

.switch-right {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.switch-wrap {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.switch-input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.switch-slider {
    position: absolute;
    inset: 0;
    background: var(--border-strong);
    border-radius: 999px;
    transition: background-color 0.18s;
}

.switch-slider::before {
    content: "";
    position: absolute;
    width: 14px;
    height: 14px;
    left: 3px;
    top: 3px;
    border-radius: 999px;
    background: #ffffff;
    box-shadow: 0 1px 2px rgba(15, 23, 42, 0.2);
    transition: transform 0.18s;
}

.switch-input:checked + .switch-slider {
    background: var(--primary);
}

.switch-input:checked + .switch-slider::before {
    transform: translateX(16px);
}

.switch-input:focus-visible + .switch-slider {
    box-shadow: 0 0 0 3px var(--primary-ring);
}

/* Spatial Interactive QR Panel Picker */
.spatial-picker {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: 1fr;
    gap: 8px;
    background: var(--surface-muted);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px;
}

.spatial-panel {
    position: relative;
    border: 1.5px solid var(--border-strong);
    background: #ffffff;
    color: var(--text-soft);
    border-radius: 7px;
    padding: 8px 6px 7px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    min-height: 76px;
    cursor: pointer;
    font-family: var(--font-ui);
    transition: border-color 0.15s, background-color 0.15s, box-shadow 0.15s, transform 0.08s;
}

.spatial-panel:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.spatial-panel.active {
    border-color: var(--primary);
    background: var(--primary-soft);
    box-shadow: 0 0 0 2px var(--primary-ring);
}

.spatial-lines {
    width: 72%;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.spatial-lines span {
    display: block;
    height: 2px;
    border-radius: 2px;
    background: var(--border);
}

.spatial-bottom {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 4px;
    padding: 0 4px;
}

.spatial-name {
    font-size: 0.71rem;
    font-weight: 700;
    color: var(--text-soft);
}

.spatial-qr-badge {
    width: 18px;
    height: 18px;
    border-radius: 4px;
    border: 1.5px dashed var(--border-strong);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    flex-shrink: 0;
}

.spatial-panel.active .spatial-qr-badge {
    border-style: solid;
    border-color: var(--primary);
    background: var(--primary);
    color: #ffffff;
}

.inline-links {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.74rem;
    color: var(--text-muted);
}

.link-btn {
    border: none;
    background: transparent;
    color: var(--primary);
    font-family: var(--font-ui);
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0 2px;
    cursor: pointer;
}

.link-btn:hover {
    text-decoration: underline;
}

/* Saved Setups Shelf */
.saved-shelf {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 13px 16px 14px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.saved-shelf-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.saved-shelf-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
}

.saved-count {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--text-muted);
}

.saved-save-row {
    display: flex;
    gap: 7px;
    align-items: center;
}

.saved-list {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.saved-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid var(--chip-border);
    background: var(--chip-bg);
    color: var(--text);
    border-radius: 999px;
    padding: 3px 6px 3px 9px;
    font-size: 0.75rem;
    font-weight: 700;
}

.saved-chip-load {
    border: none;
    background: transparent;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    font-weight: inherit;
    padding: 0;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.saved-chip-load:hover {
    color: var(--primary);
}

.saved-chip-dot {
    width: 9px;
    height: 9px;
    border-radius: 999px;
    border: 1px solid rgba(15, 23, 42, 0.25);
    flex-shrink: 0;
}

.saved-chip-del {
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1;
    width: 17px;
    height: 17px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
}

.saved-chip-del:hover {
    background: #fee2e2;
    color: #b91c1c;
}

.helper-note {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin: 0;
}

.error-note {
    font-size: 0.76rem;
    color: #b91c1c;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    padding: 6px 10px;
    font-weight: 700;
    display: none;
}

.error-note.visible {
    display: block;
}

.hidden {
    display: none !important;
}

/* Preview Stage + Dynamic Millimeter Rulers */
.preview-col {
    position: sticky;
    top: 76px;
    display: flex;
    flex-direction: column;
}

.preview-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 15px 17px 17px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.preview-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    flex-wrap: wrap;
}

.preview-meta-left {
    display: flex;
    align-items: center;
    gap: 8px;
}

.preview-meta-title {
    margin: 0;
    font-family: var(--font-display);
    font-size: 0.98rem;
    font-weight: 700;
    color: var(--text);
}

.autosave-badge {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--badge-text);
    background: var(--badge-bg);
    border: 1px solid var(--badge-border);
    border-radius: 999px;
    padding: 2px 8px;
}

.preview-stats {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
    background: var(--surface-muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 3px 10px;
}

.preview-stage {
    background-color: var(--stage-bg);
    background-image: var(--stage-pattern);
    background-size: var(--desk-size);
    border: 1px solid var(--border);
    border-radius: calc(var(--card-radius) - 4px);
    padding: 18px 20px 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 430px;
    overflow: hidden;
}

.sheet-ruler-frame {
    display: inline-grid;
    grid-template-columns: 24px auto;
    grid-template-rows: 22px auto;
    max-width: 100%;
    align-items: stretch;
    justify-items: stretch;
}

.ruler-corner {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.6rem;
    font-weight: 600;
    color: var(--ruler-text);
    background: var(--ruler-bg);
    border-right: 1px solid var(--border-strong);
    border-bottom: 1px solid var(--border-strong);
    border-top-left-radius: 4px;
}

.ruler-top {
    position: relative;
    height: 22px;
    background: var(--ruler-bg);
    border-bottom: 1px solid var(--border-strong);
    border-top-right-radius: 4px;
    overflow: hidden;
}

.ruler-left {
    position: relative;
    width: 24px;
    background: var(--ruler-bg);
    border-right: 1px solid var(--border-strong);
    border-bottom-left-radius: 4px;
    overflow: hidden;
}

.ruler-tick-x {
    position: absolute;
    bottom: 0;
    width: 1px;
    background: var(--ruler-tick);
}

.ruler-tick-x.minor {
    height: 4px;
    opacity: 0.6;
}

.ruler-tick-x.major {
    height: 9px;
}

.ruler-label-x {
    position: absolute;
    top: 2px;
    transform: translateX(-50%);
    font-family: var(--font-mono);
    font-size: 0.58rem;
    font-weight: 600;
    color: var(--ruler-text);
    white-space: nowrap;
}

.ruler-tick-y {
    position: absolute;
    right: 0;
    height: 1px;
    background: var(--ruler-tick);
}

.ruler-tick-y.minor {
    width: 4px;
    opacity: 0.6;
}

.ruler-tick-y.major {
    width: 9px;
}

.ruler-label-y {
    position: absolute;
    left: 2px;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.54rem;
    font-weight: 600;
    color: var(--ruler-text);
    white-space: nowrap;
}

.canvas-mount {
    display: flex;
    align-items: center;
    justify-content: center;
}

#previewCanvas {
    display: block;
    background: #ffffff;
    box-shadow: var(--sheet-shadow);
    border-radius: 0;
}

/* Responsive */
@media (max-width: 980px) {
    .workspace {
        grid-template-columns: 1fr;
    }

    .preview-col {
        position: static;
        order: -1;
    }

    .preview-stage {
        min-height: 260px;
        padding: 12px;
    }
}

@media (max-width: 640px) {
    .field-row {
        grid-template-columns: 1fr;
    }
}

/* Print Support */
@page {
    margin: 0;
}

@media print {
    html,
    body {
        width: 100% !important;
        height: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        overflow: hidden !important;
        background: #ffffff !important;
        background-image: none !important;
    }

    .topbar,
    .controls-col,
    .preview-meta,
    .ruler-corner,
    .ruler-top,
    .ruler-left {
        display: none !important;
    }

    .workspace,
    .preview-col,
    .preview-card,
    .preview-stage,
    .sheet-ruler-frame,
    .canvas-mount {
        display: block !important;
        position: static !important;
        width: 100% !important;
        height: 100% !important;
        max-width: none !important;
        min-height: 0 !important;
        border: none !important;
        border-radius: 0 !important;
        box-shadow: none !important;
        padding: 0 !important;
        margin: 0 !important;
        overflow: hidden !important;
        background: transparent !important;
    }

    #previewCanvas {
        display: block !important;
        box-shadow: none !important;
        border-radius: 0 !important;
        width: 100% !important;
        height: 100% !important;
        max-width: 100% !important;
        max-height: 100% !important;
        object-fit: contain !important;
        margin: 0 !important;
        page-break-before: avoid !important;
        page-break-after: avoid !important;
        break-inside: avoid !important;
    }
}