:root {
    --bs-body-font-family: "Noto Sans TC", "Barlow", sans-serif;
    --board-bg: #eef4ff;
    --board-ink: #132238;
    --board-muted: #60738a;
    --board-line: rgba(148, 163, 184, 0.32);
    --board-panel: rgba(255, 255, 255, 0.86);
    --board-panel-strong: #ffffff;
    --board-primary: #2155ff;
    --board-primary-deep: #14359b;
    --board-success: #127269;
    --board-danger: #b42344;
    --board-shadow: 0 24px 60px rgba(19, 34, 56, 0.14);
    --board-shadow-soft: 0 14px 38px rgba(19, 34, 56, 0.1);
    --board-radius-xl: 2rem;
    --board-radius-lg: 1.5rem;
    --board-radius-md: 1.1rem;
    --workspace-offset: 96px;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    color: var(--board-ink);
    background:
        radial-gradient(circle at top left, rgba(33, 85, 255, 0.06), transparent 26%),
        radial-gradient(circle at top right, rgba(18, 114, 105, 0.05), transparent 20%),
        linear-gradient(180deg, #fbfcfe 0%, #f5f7fb 100%);
}

body {
    font-family: var(--bs-body-font-family);
}

a {
    text-decoration: none;
}

.boardspace-app {
    min-height: 100vh;
}

.eyebrow {
    margin: 0 0 0.5rem;
    color: var(--board-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

.display-brand,
.section-title,
.workspace-title,
.card-title {
    font-family: "Barlow", "Noto Sans TC", sans-serif;
    letter-spacing: -0.03em;
    font-weight: 800;
}

.glass-panel,
.board-card,
.empty-state-card,
.workspace-sidebar,
.workspace-toolbar-card,
.workspace-topbar,
.canvas-shell,
.page-list-card,
.error-card {
    background: var(--board-panel);
    border: 1px solid rgba(255, 255, 255, 0.66);
    backdrop-filter: blur(18px);
    box-shadow: var(--board-shadow);
}

.landing-page,
.error-shell {
    min-height: 100vh;
    padding: 1rem;
}

.hero-shell {
    border-radius: var(--board-radius-xl);
    overflow: hidden;
}

.hero-copy {
    padding: clamp(1.5rem, 4vw, 3rem);
}

.display-brand {
    font-size: clamp(2.6rem, 6vw, 5.6rem);
    line-height: 0.95;
}

.hero-text,
.muted-copy,
.form-hint,
.empty-copy {
    color: var(--board-muted);
}

.identity-card,
.board-form {
    display: grid;
    gap: 0.9rem;
}

.floating-card {
    border-radius: var(--board-radius-xl);
    padding: clamp(1.25rem, 3vw, 2rem);
}

.join-divider {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: var(--board-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.join-divider span {
    flex: 1;
    height: 1px;
    background: var(--board-line);
}

.board-form .form-control,
.board-form .form-range,
.identity-card .form-control,
.tool-panel .form-control,
.tool-panel .form-range {
    border-radius: 1rem;
    border-color: var(--board-line);
}

.board-form .btn,
.identity-card .btn,
.workspace-actions .btn,
.workspace-toolbar-card .btn,
.page-action-btn,
.page-card button {
    border-radius: 1rem;
    font-weight: 700;
}

.btn-board-primary {
    background: linear-gradient(135deg, var(--board-primary), var(--board-primary-deep));
    border: none;
    color: #fff;
}

.btn-board-primary:hover,
.btn-board-primary:focus {
    color: #fff;
    background: linear-gradient(135deg, #1c47db, #112c82);
}

.btn-board-dark {
    background: #132238;
    border: none;
    color: #fff;
}

.btn-board-dark:hover,
.btn-board-dark:focus {
    color: #fff;
    background: #0d1828;
}

.btn-board-light {
    background: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(19, 34, 56, 0.08);
    color: var(--board-ink);
}

.board-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.board-card {
    border-radius: var(--board-radius-lg);
    overflow: hidden;
}

.board-preview {
    min-height: 210px;
    padding: 1rem;
    background:
        linear-gradient(155deg, color-mix(in srgb, var(--board-accent) 28%, white), rgba(255, 255, 255, 0.9)),
        linear-gradient(135deg, rgba(33, 85, 255, 0.14), rgba(18, 114, 105, 0.1));
}

.board-preview-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.board-badge,
.board-code,
.board-info-chip,
.presence-pill,
.page-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.5rem 0.8rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 700;
}

.board-badge {
    background: rgba(255, 255, 255, 0.88);
    color: var(--board-muted);
}

.board-code {
    background: rgba(19, 34, 56, 0.08);
    color: var(--board-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.board-preview-art {
    width: 100%;
    height: 132px;
    border-radius: 1.25rem;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
    background: rgba(255, 255, 255, 0.5);
}

.board-card-body {
    padding: 1rem;
}

.workspace-page {
    min-height: 100vh;
    padding: 0.85rem;
}

.workspace-grid {
    display: grid;
    grid-template-columns: minmax(0, 320px) minmax(0, 1fr) minmax(0, 320px);
    gap: 1rem;
    min-height: calc(100vh - 1.7rem);
}

.workspace-sidebar {
    border-radius: var(--board-radius-xl);
    padding: 1rem;
    display: grid;
    gap: 1rem;
    align-content: start;
}

.workspace-toolbar-card,
.workspace-topbar,
.page-list-card,
.canvas-shell,
.workspace-inspector {
    border-radius: var(--board-radius-xl);
}

.workspace-main {
    min-width: 0;
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 1rem;
}

.workspace-topbar {
    padding: 1.25rem;
}

.workspace-title {
    font-size: clamp(1.8rem, 3vw, 2.7rem);
    line-height: 1;
}

.workspace-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.workspace-toolbar-card {
    padding: 1rem;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(96px, 1fr));
    gap: 0.75rem;
}

.tool-button {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    min-height: 72px;
    padding: 0.8rem 0.65rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.84);
    font-weight: 700;
    transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.tool-button:hover {
    transform: translateY(-1px);
    box-shadow: var(--board-shadow-soft);
}

.tool-button::before {
    font-size: 1.15rem;
    line-height: 1;
}

.tool-button[data-tool="pen"]::before {
    content: "✦";
}

.tool-button[data-tool="rectangle"]::before {
    content: "▭";
}

.tool-button[data-tool="circle"]::before {
    content: "○";
}

.tool-button[data-tool="text"]::before {
    content: "T";
    font-weight: 800;
}

.tool-button[data-tool="eraser"]::before {
    content: "⌫";
}

.tool-button.is-active {
    color: #fff;
    background: linear-gradient(145deg, #132238, #274268);
}

.tool-panel {
    display: grid;
    gap: 0.85rem;
}

.tool-panel-title {
    margin: 0;
    color: var(--board-muted);
    font-size: 0.82rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.page-list-card,
.canvas-shell {
    padding: 1rem;
    min-height: 0;
}

.page-list-scroll {
    max-height: 360px;
    overflow: auto;
    padding-right: 0.25rem;
}

.pages-list {
    display: grid;
    gap: 0.85rem;
}

.page-card {
    padding: 0.8rem;
    border-radius: 1.35rem;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid var(--board-line);
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.page-card:hover {
    transform: translateY(-1px);
    box-shadow: var(--board-shadow-soft);
}

.page-card.is-active {
    border-color: rgba(33, 85, 255, 0.3);
    box-shadow: 0 18px 40px rgba(33, 85, 255, 0.12);
}

.page-preview {
    width: 100%;
    height: 120px;
    display: block;
    margin-bottom: 0.85rem;
    border-radius: 1rem;
    background:
        linear-gradient(180deg, rgba(222, 234, 255, 0.85), rgba(255, 255, 255, 0.96)),
        repeating-linear-gradient(0deg, transparent, transparent 20px, rgba(148, 163, 184, 0.08) 20px, rgba(148, 163, 184, 0.08) 21px);
}

.page-card-header {
    display: flex;
    justify-content: space-between;
    gap: 0.75rem;
    align-items: center;
}

.page-card h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
}

.canvas-shell {
    display: flex;
    flex-direction: column;
}

.workspace-inspector {
    display: grid;
    gap: 1rem;
    align-content: start;
}

.workspace-canvas-footer {
    padding: 0 0.2rem;
}

.canvas-meta-chip {
    display: inline-flex;
    flex-direction: column;
    gap: 0.15rem;
    padding: 0.8rem 1rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid var(--board-line);
    min-width: 108px;
}

.canvas-meta-chip span,
.mini-map-header span {
    color: var(--board-muted);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.mini-map-shell {
    display: grid;
    gap: 0.45rem;
    padding: 0.8rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid var(--board-line);
}

.mini-map-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.6rem;
}

.mini-map {
    position: relative;
    width: 220px;
    height: 124px;
    border-radius: 0.85rem;
    background:
        linear-gradient(180deg, rgba(222, 234, 255, 0.84), rgba(255, 255, 255, 0.94)),
        repeating-linear-gradient(0deg, transparent, transparent 16px, rgba(148, 163, 184, 0.08) 16px, rgba(148, 163, 184, 0.08) 17px);
    overflow: hidden;
}

.mini-map-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.mini-map-viewport {
    position: absolute;
    border: 2px solid rgba(33, 85, 255, 0.96);
    background: rgba(33, 85, 255, 0.12);
    border-radius: 0.35rem;
    box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.96);
    pointer-events: none;
}

.marquee-outline {
    position: absolute;
    border: 2px dashed rgba(18, 114, 105, 0.9);
    background: rgba(18, 114, 105, 0.08);
    border-radius: 0.75rem;
    pointer-events: none;
}

.workspace-inspector .btn-group {
    display: flex;
    flex-wrap: wrap;
}

.workspace-inspector .btn-group > .btn {
    flex: 1 1 92px;
}

.inspector-card {
    padding: 1rem;
}

.inspector-summary {
    color: var(--board-muted);
}

.inspector-section {
    display: grid;
    gap: 0.85rem;
}

.inspector-grid {
    display: grid;
    gap: 0.85rem;
}

.inspector-tips {
    margin: 0;
    padding-left: 1.15rem;
    color: var(--board-muted);
    display: grid;
    gap: 0.45rem;
}

.canvas-viewport {
    flex: 1;
    min-height: 440px;
    overflow: auto;
    border-radius: 1.8rem;
    border: 1px solid rgba(255, 255, 255, 0.8);
    background:
        radial-gradient(circle at 18% 10%, rgba(33, 85, 255, 0.08), transparent 22%),
        linear-gradient(90deg, rgba(148, 163, 184, 0.12) 1px, transparent 1px),
        linear-gradient(rgba(148, 163, 184, 0.12) 1px, transparent 1px),
        linear-gradient(180deg, #eff6ff 0%, #f8fbff 100%);
    background-size: 32px 32px, 32px 32px, 100% 100%;
    padding: 1.25rem;
}

.canvas-stage {
    width: 1920px;
    height: 1080px;
    position: relative;
    overflow: hidden;
    border-radius: 1.7rem;
    background: #fff;
    box-shadow: 0 34px 90px rgba(19, 34, 56, 0.18);
    transform-origin: top left;
}

#boardCanvas {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 1.7rem;
    background: #fff;
    touch-action: none;
}

.remote-cursor-layer {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.remote-cursor {
    position: absolute;
    display: grid;
    gap: 0.35rem;
    translate: -50% -50%;
}

.remote-cursor-dot {
    width: 14px;
    height: 14px;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.96);
    box-shadow: 0 6px 18px rgba(19, 34, 56, 0.14);
}

.remote-cursor-label {
    width: max-content;
    max-width: 200px;
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    background: rgba(19, 34, 56, 0.92);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 700;
}

.selection-outline {
    position: absolute;
    pointer-events: none;
    border: 2px dashed rgba(33, 85, 255, 0.95);
    border-radius: 0.9rem;
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9);
}

.selection-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    margin-left: -6px;
    margin-top: -6px;
    border-radius: 999px;
    border: 2px solid #fff;
    background: var(--board-primary);
    box-shadow: 0 4px 12px rgba(19, 34, 56, 0.18);
}

.invite-feedback {
    min-height: 1.2rem;
    color: var(--board-muted);
    font-size: 0.92rem;
    font-weight: 600;
}

.presence-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.presence-pill {
    background: rgba(18, 114, 105, 0.12);
    color: var(--board-success);
}

.presence-empty {
    color: var(--board-muted);
    font-size: 0.92rem;
    font-weight: 600;
}

.zoom-controls {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.76);
}

.zoom-controls button {
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 999px;
    background: rgba(19, 34, 56, 0.08);
    font-weight: 700;
}

.workspace-mobile-bar {
    position: sticky;
    bottom: 0.75rem;
    z-index: 20;
}

.error-shell {
    display: grid;
    place-items: center;
}

.error-card {
    max-width: 640px;
    border-radius: var(--board-radius-xl);
    padding: clamp(1.5rem, 4vw, 2.4rem);
}

@media (max-width: 1199.98px) {
    .workspace-grid {
        grid-template-columns: 1fr;
    }

    .workspace-sidebar {
        display: none;
    }

    .page-list-card {
        order: 2;
    }

    .canvas-shell {
        order: 3;
    }

    .workspace-inspector {
        display: none;
    }

    .workspace-inspector-mobile {
        display: block;
    }
}

@media (max-width: 767.98px) {
    .landing-page,
    .workspace-page,
    .error-shell {
        padding: 0.7rem;
    }

    .hero-copy,
    .floating-card,
    .workspace-topbar,
    .workspace-toolbar-card,
    .page-list-card,
    .canvas-shell,
    .error-card {
        border-radius: 1.35rem;
    }

    .display-brand {
        font-size: clamp(2.3rem, 11vw, 3.6rem);
    }

    .board-preview {
        min-height: 180px;
    }

    .workspace-title {
        font-size: 1.7rem;
    }

    .canvas-viewport {
        min-height: 360px;
        padding: 0.8rem;
    }
}

@media (min-width: 1200px) {
    .workspace-inspector-mobile {
        display: none;
    }
}

/* Workspace redesign for board-style layout */
.workspace-page {
    min-height: 100vh;
    padding: 0.5rem;
}

.workspace-shell {
    min-height: calc(100vh - 1rem);
    display: grid;
    grid-template-rows: auto auto minmax(0, 1fr);
    gap: 0.5rem;
}

.workspace-app-bar {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    align-items: center;
    gap: 0.6rem;
    padding: 0.45rem 0.65rem;
    border-radius: 1.1rem;
    background: rgba(255, 255, 255, 0.88);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 8px 24px rgba(19, 34, 56, 0.07);
    backdrop-filter: blur(18px);
}

.workspace-brand-group,
.workspace-app-actions,
.workspace-right-actions {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    min-width: 0;
}

.workspace-right-actions {
    justify-content: flex-end;
    flex-wrap: wrap;
}

.workspace-brand-mark {
    display: inline-grid;
    place-items: center;
    width: 2.8rem;
    height: 2.8rem;
    border-radius: 0.85rem;
    background: linear-gradient(145deg, var(--board-primary), var(--board-primary-deep));
    color: #fff;
    box-shadow: 0 12px 24px rgba(33, 85, 255, 0.18);
}

.workspace-brand-mark-icon {
    font-size: 1.35rem;
    font-weight: 800;
    line-height: 1;
}

.workspace-board-switcher {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 0;
    padding: 0.62rem 0.9rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.86);
    color: var(--board-ink);
    font-weight: 800;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.workspace-board-name {
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.workspace-board-chevron {
    color: var(--board-muted);
    font-size: 0.95rem;
}

.workspace-sync-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.48rem 0.8rem;
    border-radius: 999px;
    background: rgba(18, 114, 105, 0.08);
    color: var(--board-success);
    font-size: 0.82rem;
    font-weight: 800;
}

.workspace-sync-dot {
    width: 0.55rem;
    height: 0.55rem;
    border-radius: 999px;
    background: currentColor;
}

.workspace-cloud-pill {
    display: inline-grid;
    place-items: center;
    width: 2.05rem;
    height: 2.05rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(19, 34, 56, 0.08);
    color: var(--board-success);
    font-size: 1rem;
}

.icon-button,
.share-button {
    display: inline-grid;
    place-items: center;
    width: 2.35rem;
    height: 2.35rem;
    padding: 0;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 0.82rem;
    background: rgba(255, 255, 255, 0.88);
    color: var(--board-ink);
    font-weight: 800;
    box-shadow: 0 8px 16px rgba(19, 34, 56, 0.06);
}

.share-button {
    width: auto;
    min-width: 4.8rem;
    height: 2.5rem;
    padding: 0 1.05rem;
    border: none;
    background: linear-gradient(145deg, var(--board-primary), var(--board-primary-deep));
    color: #fff;
    border-radius: 0.88rem;
}

.icon-button:hover,
.share-button:hover,
.workspace-board-switcher:hover {
    transform: translateY(-1px);
}

.workspace-feedback {
    padding-inline: 0.2rem;
}

.workspace-stage {
    display: grid;
    grid-template-columns: 14.25rem minmax(0, 1fr) 18rem;
    gap: 0.45rem;
    min-height: 0;
}

.workspace-left-rail,
.workspace-right-rail {
    min-width: 0;
    display: grid;
    gap: 0.45rem;
    align-content: start;
}

.workspace-left-rail {
    position: relative;
    padding: 0.25rem 0 0.4rem;
}

.workspace-panel {
    padding: 0.68rem;
    border-radius: 1.1rem;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 12px 28px rgba(19, 34, 56, 0.07);
}

.workspace-panel-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.6rem;
    margin-bottom: 0.55rem;
}

.workspace-tool-picker {
    padding: 0.35rem;
}

.workspace-panel-heading {
    margin: 0 0 0.5rem;
    color: var(--board-muted);
    font-size: 0.7rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.workspace-panel-title {
    margin: 0;
    font-size: 1rem;
    font-weight: 800;
}

.workspace-tool-list {
    display: grid;
    gap: 0.15rem;
}

.workspace-left-rail .tool-button {
    display: grid;
    grid-template-columns: 1.2rem 1fr auto;
    align-items: center;
    gap: 0.55rem;
    width: 100%;
    min-height: 2.2rem;
    padding: 0.28rem 0.4rem;
    border-radius: 0.72rem;
    background: transparent;
    border: 1px solid transparent;
    box-shadow: none;
    transform: none;
}

.workspace-left-rail .tool-button:hover {
    background: rgba(33, 85, 255, 0.06);
    box-shadow: none;
}

.workspace-left-rail .tool-button::before,
.workspace-left-rail .tool-button::after {
    content: none !important;
}

.workspace-left-rail .tool-button.is-active,
.tool-button-primary {
    background: rgba(33, 85, 255, 0.12);
    color: var(--board-primary-deep);
    border-color: rgba(33, 85, 255, 0.18);
}

.tool-button-icon {
    display: inline-grid;
    place-items: center;
    width: 1.2rem;
    height: 1.2rem;
    font-size: 0.9rem;
    line-height: 1;
    color: var(--board-ink);
}

.tool-button-label {
    justify-self: start;
    font-size: 0.88rem;
    font-weight: 700;
}

.tool-button-shortcut {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.2rem;
    height: 1.2rem;
    padding: 0 0.35rem;
    border-radius: 0.38rem;
    background: rgba(19, 34, 56, 0.06);
    color: var(--board-muted);
    font-size: 0.65rem;
    font-weight: 800;
}

.workspace-page-dock .page-list-scroll {
    max-height: 14rem;
}

.workspace-collapse-button {
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 8px 18px rgba(19, 34, 56, 0.08);
}

.workspace-canvas-region {
    min-width: 0;
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto;
    gap: 0.5rem;
    min-height: 0;
}

.workspace-canvas-shell {
    min-height: 0;
    display: grid;
    grid-template-rows: minmax(0, 1fr) auto;
    gap: 0.5rem;
}

.canvas-viewport {
    min-height: 0;
    overflow: auto;
    border-radius: 1.6rem;
    padding: 1rem;
    background:
        radial-gradient(circle at 50% 0%, rgba(33, 85, 255, 0.08), transparent 22%),
        linear-gradient(90deg, rgba(148, 163, 184, 0.12) 1px, transparent 1px),
        linear-gradient(rgba(148, 163, 184, 0.12) 1px, transparent 1px),
        linear-gradient(180deg, #fafcff 0%, #f4f7fc 100%);
    background-size: 32px 32px, 32px 32px, 32px 32px, 100% 100%;
}

.canvas-stage {
    position: relative;
    border-radius: 1.6rem;
    box-shadow: 0 24px 70px rgba(19, 34, 56, 0.12);
}

#boardCanvas {
    position: relative;
    z-index: 1;
    pointer-events: auto;
    touch-action: none;
    user-select: none;
    -webkit-user-drag: none;
}

.workspace-bottom-bar {
    display: flex;
    justify-content: center;
    pointer-events: none;
}

.workspace-bottom-controls {
    pointer-events: auto;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.45rem;
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 14px 30px rgba(19, 34, 56, 0.1);
}

.icon-button-active {
    background: rgba(33, 85, 255, 0.12);
    color: var(--board-primary-deep);
}

.icon-button-small {
    width: 2.25rem;
    height: 2.25rem;
    border-radius: 0.8rem;
}

.icon-button-danger {
    color: var(--board-danger);
}

.workspace-zoom-label {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 5rem;
    height: 2.25rem;
    padding: 0 0.8rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 0.8rem;
    background: #fff;
    color: var(--board-ink);
    font-weight: 700;
}

.workspace-mini-map-wrap {
    display: flex;
    justify-content: flex-end;
    padding-right: 0.25rem;
}

.workspace-mini-map-wrap .mini-map-shell {
    padding: 0.7rem;
    border-radius: 1rem;
}

.workspace-mini-map-wrap .mini-map {
    width: 230px;
    height: 130px;
}

.workspace-right-rail {
    padding-top: 0.35rem;
}

.workspace-inspector-tabs {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.25rem;
    padding: 0.42rem;
    border-radius: 1rem 1rem 0 0;
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-bottom: none;
}

.workspace-tab {
    padding: 0.7rem 0.45rem;
    border: none;
    border-radius: 0.72rem;
    background: transparent;
    color: var(--board-muted);
    font-weight: 800;
}

.workspace-tab.is-active {
    background: rgba(33, 85, 255, 0.08);
    color: var(--board-primary);
    box-shadow: inset 0 -2px 0 var(--board-primary);
}

.inspector-panel {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
    gap: 0.8rem;
}

.inspector-line-row,
.inspector-width-row,
.inspector-action-row,
.fill-swatches,
.opacity-row {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.inspector-line-row {
    justify-content: space-between;
}

.line-style-picker {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.2rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    background: rgba(255, 255, 255, 0.78);
}

.line-style-button,
.swatch {
    display: inline-grid;
    place-items: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 0.65rem;
    background: rgba(255, 255, 255, 0.92);
    color: var(--board-ink);
    font-weight: 800;
}

.line-style-button.is-active {
    background: rgba(33, 85, 255, 0.12);
    color: var(--board-primary-deep);
}

.fill-swatches {
    flex-wrap: wrap;
}

.fill-swatches .form-control-color {
    width: 2rem;
    height: 2rem;
    padding: 0;
    border-radius: 0.65rem;
}

.swatch {
    border: none;
}

.swatch.is-empty {
    background: linear-gradient(135deg, #fff, #edf2fb);
    box-shadow: inset 0 0 0 1px rgba(33, 85, 255, 0.25);
}

.swatch.is-yellow {
    background: #ffdf6b;
}

.swatch.is-green {
    background: #67d17d;
}

.swatch.is-blue {
    background: #62a4f5;
}

.swatch.is-purple {
    background: #b07bf5;
}

.swatch.is-rainbow {
    background: conic-gradient(from 120deg, #ff6b6b, #ffd93d, #6bff95, #5da9ff, #c47bff, #ff6b6b);
}

.swatch.is-more {
    background: rgba(19, 34, 56, 0.04);
}

.inspector-width-row {
    gap: 0.45rem;
}

.inspector-width-row .form-range {
    flex: 1;
}

.opacity-icon {
    color: var(--board-muted);
    font-size: 1.05rem;
}

.opacity-value {
    min-width: 3rem;
    padding: 0.42rem 0.6rem;
    border-radius: 0.68rem;
    background: rgba(255, 255, 255, 0.84);
    border: 1px solid rgba(19, 34, 56, 0.08);
    text-align: center;
    font-weight: 700;
}

.presence-wrap {
    align-items: center;
}

.presence-avatar,
.presence-more {
    display: inline-grid;
    place-items: center;
    width: 2.2rem;
    height: 2.2rem;
    border-radius: 999px;
    border: 2px solid rgba(255, 255, 255, 0.95);
    box-shadow: 0 8px 14px rgba(19, 34, 56, 0.08);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}

.presence-avatar + .presence-avatar,
.presence-avatar + .presence-more,
.presence-more + .presence-avatar,
.presence-more + .presence-more {
    margin-left: -0.5rem;
}

.presence-more {
    background: #e9eefb;
    color: var(--board-primary-deep);
}

.presence-empty {
    color: var(--board-muted);
    font-size: 0.8rem;
    font-weight: 600;
}

.workspace-inspector .form-control,
.workspace-inspector .form-select,
.workspace-inspector .form-range {
    border-color: var(--board-line);
    border-radius: 0.9rem;
}

.workspace-mobile-chrome {
    display: none;
}

.workspace-mobile-toolbar {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.35rem 0.35rem 0.55rem;
    position: relative;
}

.workspace-mobile-tool-strip {
    flex: 1;
    display: flex;
    align-items: center;
    gap: 0.24rem;
    overflow-x: auto;
    padding: 0.26rem 0.28rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 8px 16px rgba(19, 34, 56, 0.06);
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
}

.workspace-mobile-tool-strip::-webkit-scrollbar {
    display: none;
}

.mobile-tool-button {
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    width: 1.85rem;
    height: 1.85rem;
    border: 1px solid rgba(19, 34, 56, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--board-ink);
    font-size: 0.78rem;
    font-weight: 800;
    box-shadow: 0 4px 9px rgba(19, 34, 56, 0.04);
}

.mobile-tool-button.is-active {
    background: rgba(33, 85, 255, 0.12);
    color: var(--board-primary-deep);
}

.mobile-tool-button-more {
    font-size: 0.9rem;
    letter-spacing: 0.02em;
}

.mobile-drawer-toggle {
    flex: 0 0 auto;
    display: inline-grid;
    place-items: center;
    min-width: 1.9rem;
    height: 1.9rem;
    padding: 0;
    border: none;
    border-radius: 999px;
    background: linear-gradient(145deg, var(--board-primary), var(--board-primary-deep));
    color: #fff;
    font-size: 0.86rem;
    font-weight: 800;
    box-shadow: 0 5px 11px rgba(33, 85, 255, 0.12);
}

.workspace-mobile-more-menu {
    position: absolute;
    right: 3.55rem;
    bottom: calc(100% + 0.55rem);
    z-index: 47;
    display: grid;
    grid-template-columns: repeat(4, 1.95rem);
    gap: 0.26rem;
    padding: 0.4rem;
    border-radius: 0.9rem;
    background: rgba(255, 255, 255, 0.96);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 12px 28px rgba(19, 34, 56, 0.11);
    backdrop-filter: blur(16px);
}

.workspace-mobile-more-menu .mobile-tool-button-compact {
    width: 1.9rem;
    height: 1.9rem;
    border-radius: 0.65rem;
    font-size: 0.75rem;
}

.workspace-mobile-drawer-backdrop {
    position: fixed;
    inset: 0;
    z-index: 45;
    background: rgba(9, 16, 28, 0.22);
    opacity: 0;
    transition: opacity 180ms ease;
}

.workspace-mobile-drawer-backdrop.is-visible {
    opacity: 1;
}

.workspace-mobile-drawer {
    position: fixed;
    top: 0.5rem;
    right: 0.5rem;
    bottom: calc(4.2rem + env(safe-area-inset-bottom));
    width: min(90vw, 24rem);
    z-index: 46;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
    gap: 0.75rem;
    padding: 0.85rem;
    border-radius: 1.2rem;
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(19, 34, 56, 0.08);
    box-shadow: 0 28px 60px rgba(19, 34, 56, 0.18);
    backdrop-filter: blur(18px);
    transform: translateX(calc(100% + 1rem));
    transition: transform 220ms ease;
    pointer-events: none;
}

.workspace-mobile-drawer.is-open {
    transform: translateX(0);
    pointer-events: auto;
}

.workspace-mobile-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
}

.workspace-mobile-drawer-body {
    min-height: 0;
    display: grid;
    gap: 0.75rem;
    overflow: auto;
    padding-right: 0.15rem;
}

body.mobile-drawer-open {
    overflow: hidden;
}

@media (max-width: 1599.98px) {
    .workspace-stage {
        grid-template-columns: 13.75rem minmax(0, 1fr) 16.25rem;
    }
}

@media (max-width: 1399.98px) {
    .workspace-stage {
        grid-template-columns: 13.25rem minmax(0, 1fr) 15rem;
    }

    .workspace-right-actions {
        gap: 0.4rem;
    }

    .share-button {
        min-width: 4rem;
    }
}

@media (max-width: 1199.98px) {
    .workspace-app-bar {
        grid-template-columns: 1fr;
        justify-items: start;
    }

    .workspace-stage {
        grid-template-columns: 1fr;
        gap: 0.6rem;
    }

    .workspace-left-rail,
    .workspace-right-rail {
        display: none;
    }

    .workspace-canvas-region {
        order: 0;
    }

    .workspace-bottom-bar,
    .workspace-mini-map-wrap {
        display: none;
    }

    .workspace-mobile-chrome {
        display: block;
    }

    .workspace-canvas-region {
        padding-bottom: 5.6rem;
    }
}

@media (max-width: 767.98px) {
    .workspace-page {
        padding: 0.4rem;
    }

    .workspace-shell {
        min-height: calc(100vh - 0.8rem);
    }

    .workspace-app-bar {
        padding: 0.46rem;
        border-radius: 1rem;
    }

    .workspace-brand-mark {
        width: 2.45rem;
        height: 2.45rem;
    }

    .workspace-board-switcher {
        padding: 0.6rem 0.8rem;
    }

    .workspace-right-actions {
        justify-content: flex-start;
    }

    .canvas-viewport {
        padding: 0.5rem;
        border-radius: 1.2rem;
        min-height: 62vh;
    }

    .workspace-bottom-controls {
        flex-wrap: wrap;
        justify-content: center;
    }

    .workspace-mini-map-wrap {
        justify-content: center;
    }

    .workspace-mobile-toolbar {
        position: fixed;
        left: 0.35rem;
        right: 0.35rem;
        bottom: calc(0.35rem + env(safe-area-inset-bottom));
        z-index: 44;
        padding: 0.2rem;
        margin-top: 0;
    }

    .mobile-tool-button {
        width: 1.75rem;
        height: 1.75rem;
        font-size: 0.74rem;
    }

    .mobile-tool-button-more {
        font-size: 0.84rem;
    }

    .mobile-drawer-toggle {
        min-width: 1.8rem;
        height: 1.8rem;
        font-size: 0.8rem;
    }

    .workspace-mobile-more-menu {
        right: 3.25rem;
        grid-template-columns: repeat(3, 1.85rem);
        gap: 0.22rem;
        padding: 0.35rem;
    }

    .workspace-mobile-more-menu .mobile-tool-button-compact {
        width: 1.8rem;
        height: 1.8rem;
    }

    .workspace-mobile-drawer {
        top: 0.35rem;
        right: 0.35rem;
        bottom: calc(4rem + env(safe-area-inset-bottom));
        width: min(92vw, 20rem);
        padding: 0.75rem;
    }
}