:root {
    --gold: #F59E0B;
    --gold-deep: #B45309;
    --gold-soft: #FFFBEB;

    --ink: #0F172A;
    --ink-mid: #1E293B;
    --ink-soft: rgba(15, 23, 42, 0.05);

    --accent-red: #DC2626;
    --accent-red-soft: #FEF2F2;
    --accent-red-ink: #B91C1C;
    --status-waiting: #2563EB;

    --paper: #F5F7FB;
    --surface: #FFFFFF;
    --cream: #EEF2F8;
    --text: #0F172A;
    --hairline: #E5E9F2;
    --hairline-strong: #D5DBE8;
    --hairline-input: #94A3B8;
    --text-muted: #475569;
    --text-subtle: #5B6B82;

    --primary: #2563EB;
    --primary-hover: #1D4ED8;
    --primary-soft: #EAF0FD;
    --on-primary: #FFFFFF;
    --primary-ink: #2563EB;
    --primary-btn: #2563EB;
    --primary-btn-hover: #1D4ED8;
    --ok: #15803D;
    --ok-soft: #ECFDF3;
    --warn-ink: #92400E;
    --shell-bg: #FFFFFF;
    --shell-w: 232px;
    --card-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);

    --r-xs: 6px;
    --r-sm: 10px;

    --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
                    "Microsoft JhengHei", "Helvetica Neue", Arial, sans-serif;
}

html[data-theme="dark"] { color-scheme: dark; }

:root[data-theme="dark"] {
    color-scheme: dark;
    --gold: #FBBF24;
    --gold-deep: #FBBF24;
    --gold-soft: rgba(251, 191, 36, 0.1);

    --ink: #E8EDF7;
    --ink-mid: #CBD5E1;
    --ink-soft: rgba(232, 237, 247, 0.06);

    --accent-red: #F87171;
    --accent-red-soft: rgba(248, 113, 113, 0.1);
    --accent-red-ink: #F87171;
    --status-waiting: #60A5FA;

    --paper: #0B1220;
    --surface: #131D33;
    --cream: #1A2640;
    --text: #E8EDF7;
    --hairline: #22304C;
    --hairline-strong: #2E3E60;
    --hairline-input: #5B6C8F;
    --text-muted: #A5B2CA;
    --text-subtle: #8394B3;

    --primary: #3B6FF0;
    --primary-hover: #5B86F5;
    --primary-soft: #1A2B4F;
    --primary-ink: #9DB8FF;
    --primary-btn: #3566E4;
    --primary-btn-hover: #2F5FD8;
    --ok: #4ADE80;
    --ok-soft: rgba(74, 222, 128, 0.1);
    --warn-ink: #FCD34D;
    --shell-bg: #0E1628;
    --card-shadow: none;
}


body {
    font-size: 15px;
    background: var(--paper);
    color: var(--text);
}

h1, h2, h3 {
    font-family: var(--font-display);
    letter-spacing: -0.01em;
}

h1 { font-size: 1.65rem; font-weight: 700; }
h2 { font-size: 1.15rem; font-weight: 650; }

a { text-decoration-color: transparent; }
a:hover { color: var(--primary-ink); text-decoration-color: currentColor; }

.section-label {
    font-family: var(--font-body);
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-subtle);
}

.section-index { display: none; }

body.app-shell {
    display: grid;
    grid-template-columns: var(--shell-w) minmax(0, 1fr);
    grid-template-rows: 1fr auto;
    grid-template-areas: "nav main" "nav footer";
    min-height: 100vh;
}

.site-nav {
    background: var(--shell-bg);
    border-bottom: 1px solid var(--hairline);
}

.site-nav-inner {
    max-width: 1280px;
    padding: 0.75rem 1.5rem;
}

.site-nav .brand-mark { width: auto; height: 36px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-wordmark { color: var(--ink); font-weight: 700; font-size: 1.05rem; letter-spacing: 0; }
.brand-by {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--text-subtle);
}

.brand-by img { display: block; width: 14px; height: 14px; object-fit: contain; }

.nav-link {
    color: var(--text-muted);
    border-bottom: none;
    border-radius: var(--r-xs);
    padding: 0.4rem 0.75rem;
}

.nav-link:hover { color: var(--ink); background: var(--ink-soft); }

.nav-link[aria-current] {
    color: var(--primary-ink);
    background: var(--primary-soft);
    border-bottom: none;
}

.nav-user {
    color: var(--text-subtle);
    border-left-color: var(--hairline-strong);
    font-family: var(--font-body);
    font-size: 0.8rem;
}

.lang-switch { border-left-color: var(--hairline-strong); }

.lang-switch-select {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--surface);
    border-color: var(--hairline-strong);
    border-radius: var(--r-xs);
}

.lang-switch-select:hover { border-color: var(--hairline-input); }
.lang-switch-select option { color: var(--text); background: var(--surface); }

.btn-ghost {
    color: var(--text-muted);
    border-color: var(--hairline-strong);
}

.btn-ghost:hover { color: var(--ink); border-color: var(--hairline-input); }

body.app-shell .site-nav {
    grid-area: nav;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    border-bottom: none;
    border-right: 1px solid var(--hairline);
}

body.app-shell .site-nav-inner {
    max-width: none;
    height: 100%;
    margin: 0;
    padding: 1.25rem 0.875rem 0.75rem;
    flex-direction: column;
    flex-wrap: nowrap;
    align-items: stretch;
    gap: 1rem;
}

body.app-shell .brand { margin: 0 0 0 0.5rem; }

.side-scroll {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.side-tree { display: flex; flex-direction: column; gap: 1rem; }
.side-head {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding-left: 0.5rem;
}

.side-icons { display: flex; align-items: center; gap: 0.1rem; }
.side-head .section-label { margin: 0; }
.side-head .tree-new { position: static; flex: none; }
.side-head .tree-new > summary { display: inline-flex; list-style: none; }
.side-head .tree-new[open] > summary { color: var(--primary-ink); background: var(--primary-soft); margin-bottom: 0; }

.side-head .tree-new > .project-create {
    position: absolute;
    top: calc(100% + 0.35rem);
    left: 0;
    right: 0;
    z-index: 30;
    margin: 0;
    max-width: none;
    padding: 0.85rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
}
.side-files { display: flex; flex-direction: column; gap: 0.35rem; }
.side-files .section-label, .tree-deleted > summary.section-label, .side-admin > summary { padding-left: 0.5rem; }

.side-admin > summary, .tree-deleted > summary { cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; }
.side-admin > summary::-webkit-details-marker, .tree-deleted > summary::-webkit-details-marker { display: none; }
.side-admin[open] > summary { margin-bottom: 0.35rem; }

.tree-folder > details > summary { list-style: none; cursor: pointer; }
.tree-folder > details > summary::-webkit-details-marker { display: none; }
.tree-folder > details > summary a.tree-name { color: inherit; text-decoration: none; }
.tree-folder > details:not([open]) > summary .tree-glyph { opacity: 0.7; }
.tree-link .tree-name { font-weight: 500; }
.tree-project .tree-name { font-weight: 650; }

.status-dot {
    flex: none;
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background-color: currentColor;
}

.tree-link .status-dot { background-color: currentColor; }
.tree-link .status-dot.status-done { color: var(--ok); }
.tree-link .status-dot.status-failed { color: var(--accent-red); }
.tree-link .status-dot.status-working { color: var(--text-subtle); }
.tree-link .status-dot.status-waiting { color: var(--status-waiting); }

.tree-deleted { margin-top: 0; padding-top: 0.75rem; }
.tree-deleted[open] > summary { margin-bottom: 0.5rem; }

.side-foot {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    gap: 0.15rem;
    padding-top: 0.6rem;
    border-top: 1px solid var(--hairline);
}

.side-foot .nav-user {
    flex: 1 1 auto;
    min-width: 0;
    margin: 0;
    padding: 0 0.4rem 0 0.5rem;
    border: none;
    max-width: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: none;
    border-radius: var(--r-xs);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
}

.icon-btn:hover,
.icon-btn:focus-visible { color: var(--ink); background: var(--ink-soft); text-decoration: none; }
.icon-btn[aria-current] { color: var(--primary-ink); background: var(--primary-soft); }
.side-foot .nav-form { margin: 0; }
.side-admin .nav-link { display: block; font-size: 0.9rem; font-weight: 550; }

body:not(.app-shell) .side-foot { margin-left: auto; padding: 0; border: none; gap: 0.5rem; }

body.app-shell .site-main {
    grid-area: main;
    min-width: 0;
    max-width: 1280px;
    padding: 2rem 2rem 4rem;
    margin: 0 auto;
}

body.app-shell .site-footer {
    grid-area: footer;
    background: transparent;
    border-top: 1px solid var(--hairline);
}

body.app-shell .site-footer-inner { max-width: 1280px; padding: 1.25rem 2rem; }

@media (max-width: 860px) {
    body.app-shell {
        grid-template-columns: minmax(0, 1fr);
        grid-template-rows: auto 1fr auto;
        grid-template-areas: "nav" "main" "footer";
    }

    body.app-shell .site-nav { position: static; height: auto; overflow: visible; border-right: none; border-bottom: 1px solid var(--hairline); }
    body.app-shell .site-nav-inner { height: auto; padding: 0.75rem 1rem; gap: 0.75rem; }
    .side-scroll { max-height: 45vh; }
    body.app-shell .site-main { padding: 1.25rem 1rem 3rem; }
    body.app-shell .site-footer-inner { padding: 1.25rem 1rem; }
}

.site-main { padding-top: 2rem; }

.page-header {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 1.5rem;
}

.page-header .page-subtitle {
    font-family: var(--font-body);
    font-size: 0.85rem;
    color: var(--text-subtle);
}

.btn {
    border-radius: var(--r-xs);
    padding: 0.5rem 1rem;
    letter-spacing: 0;
}

.btn-primary { background: var(--primary-btn); color: var(--on-primary); }
.btn-primary:hover:not(:disabled) { background: var(--primary-btn-hover); color: var(--on-primary); }

.btn-accent { background: var(--primary-btn); color: var(--on-primary); }
.btn-accent:hover { background: var(--primary-btn-hover); color: var(--on-primary); }

.btn-secondary {
    background: var(--surface);
    color: var(--text);
    border-color: var(--hairline-strong);
}

.btn-secondary:hover { border-color: var(--hairline-input); color: var(--text); }

.field input[type="file"]::file-selector-button {
    background: var(--primary-btn);
    color: var(--on-primary);
    border-radius: var(--r-xs);
}

.field input[type="text"],
.field input[type="email"],
.field input[type="password"],
.field input[type="number"],
.field input[type="search"],
.field select,
.field textarea {
    background: var(--surface);
    color: var(--text);
    border-color: var(--hairline-strong);
    border-radius: var(--r-xs);
}

.panel-ink {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
}

.panel-ink::before { display: none; }
.panel-ink h1, .panel-ink h2, .panel-ink h3 { color: var(--ink); }
.panel-ink p { color: var(--text-muted); }
.panel-ink .section-label { color: var(--text-subtle); }

.dash-hero { gap: 1.25rem; }

.dash-index {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    overflow: hidden;
}

.dash-index li { border-top-color: var(--hairline); }
.index-row:hover { background: var(--primary-soft); }
.index-row:hover .index-arrow { color: var(--primary-ink); }

.stat-row {
    gap: 0.75rem;
    background: transparent;
    border: none;
}

.stat-tile {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
}

.stat-value { font-family: var(--font-body); font-size: 1.6rem; font-weight: 700; }
.stat-label { text-transform: none; letter-spacing: 0; font-size: 0.8rem; font-weight: 550; }
.stat-value-ok { color: var(--ok); }

.section-head { border-bottom: none; }

.table-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
}

.data-table th {
    font-family: var(--font-body);
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.78rem;
    font-weight: 600;
    background: var(--paper);
    border-bottom-color: var(--hairline);
}

.data-table td { border-bottom-color: var(--hairline); }
.data-table tbody tr:hover { background: var(--primary-soft); }
.data-table tbody tr:last-child td { border-bottom: none; }

.status-pill {
    font-family: var(--font-body);
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
}

.status-pill::before { width: 6px; height: 6px; }

.status-done { color: var(--ok); background: var(--ok-soft); }
.status-working { color: var(--warn-ink); background: var(--gold-soft); }
.status-failed { color: var(--accent-red-ink); background: var(--accent-red-soft); }
.status-waiting { color: var(--status-waiting); background: var(--primary-soft); }

.notice {
    background: var(--gold-soft);
    border-color: var(--gold);
    color: var(--warn-ink);
    border-radius: var(--r-sm);
}

.notice-warning {
    background: var(--accent-red-soft);
    border-color: var(--accent-red);
    color: var(--accent-red-ink);
}

.view-tabs { border-bottom-color: var(--hairline); gap: 0.25rem; flex-wrap: wrap; }

.view-tab {
    font-family: var(--font-body);
    text-transform: none;
    letter-spacing: 0;
    font-size: 0.875rem;
    font-weight: 600;
    padding: 0.55rem 0.85rem;
    color: var(--text-subtle);
}

a.view-tab:hover { color: var(--ink); }
.view-tab-active { color: var(--primary-ink); border-bottom-color: var(--primary-ink); }

.empty-state {
    background: var(--surface);
    border: 1px dashed var(--hairline-strong);
    border-radius: var(--r-sm);
}

.site-footer { background: transparent; }
.footer-contact a:hover { color: var(--primary-ink); }

.nav-link::after { display: none; }
.index-num { display: none; }

.settings-nav-link:hover,
.settings-nav-link:focus-visible { border-left-color: var(--primary); }

:root[data-theme="dark"] .footer-logo {
    background: #FFFFFF;
    border-radius: 4px;
    padding: 1px;
}

body.app-shell .site-nav::after { display: none; }

.lang-switch-submit-fallback:focus {
    color: var(--text);
    background: var(--surface);
    border-color: var(--hairline-input);
}

.auth-brand .brand-title,
.auth-features .feature-title { color: var(--ink); }

.auth-brand .brand-slogan,
.auth-features .feature-num { color: var(--gold-deep); }

.auth-features li { border-top-color: var(--hairline); }
.auth-features li:first-child { border-top: none; }
.auth-brand .auth-hero { box-shadow: 0 0 0 1px var(--hairline-strong); }

.data-table .group-row th,
.data-table .group-row td { background: var(--ink-soft); }

.attention-list {
    list-style: none;
    margin: 0;
    padding: 0;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
}

.attention-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.8rem 1rem;
    border-top: 1px solid var(--hairline);
}

.attention-item:first-child { border-top: none; }

.attention-body {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem 0.75rem;
    min-width: 0;
}

.attention-file {
    font-weight: 650;
    max-width: 24rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attention-detail {
    color: var(--text-muted);
    font-size: var(--fs-small);
    overflow-wrap: anywhere;
}

.index-row {
    grid-template-columns: 1fr auto;
    padding: 1.15rem 1.25rem;
}

.attention { margin: 2rem 0; }
.attention .empty-state { max-width: none; padding: 1.1rem 1.25rem; }
.attention .empty-state p { margin: 0; }

.summary-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.6fr) minmax(16rem, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.summary-side { display: flex; flex-direction: column; gap: 1.25rem; }

.summary-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
    padding: 1.25rem;
    min-width: 0;
    overflow-x: auto;
}

.summary-card h2 { margin-bottom: 0.75rem; }
.summary-card .data-table tfoot th { border-top: 1px solid var(--hairline-strong); border-bottom: none; background: transparent; }

.share-bar {
    width: 100%;
    min-width: 5rem;
    height: 0.5rem;
    accent-color: var(--primary);
}

.estimate-list {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 0.35rem 1rem;
    margin: 0 0 1rem;
}

.estimate-list dt { color: var(--text-muted); }
.estimate-list dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.estimate-total { font-size: 1.25rem; font-weight: 700; color: var(--ink); }
.estimate-sub { font-size: var(--fs-small); font-weight: 500; color: var(--text-muted); }

.export-actions { display: flex; flex-direction: column; gap: 0.5rem; }

@media (max-width: 860px) {
    .summary-grid { grid-template-columns: minmax(0, 1fr); }
}

body.app-shell .workspace {
    --workspace-width: 100%;
    margin-left: 0;
}

body.app-shell .site-main:has(.workspace) { max-width: 1600px; }

.review-intro { color: var(--text-muted); margin: 0 0 1rem; max-width: 60ch; }
.review-counts { font-weight: 600; margin: 0 0 0.75rem; }
.review-filters { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0 0 1rem; }
.review-filter {
    padding: 0.35rem 0.85rem;
    border: 1px solid var(--hairline-input);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
    background: var(--surface);
}
a.review-filter:hover { color: var(--text); border-color: var(--text-muted); }
.review-filter-active { background: var(--primary-soft); border-color: var(--primary-ink); color: var(--primary-ink); }
.review-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.75rem; }
.review-item {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-md, 10px);
    padding: 1rem 1.15rem;
    box-shadow: var(--card-shadow);
}
.review-head { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 0.4rem; }
.review-rule { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-subtle); }
.review-message { margin: 0 0 0.4rem; color: var(--text); overflow-wrap: anywhere; }
.review-meta { display: flex; flex-wrap: wrap; gap: 0.25rem 1rem; margin: 0 0 0.5rem; font-size: 0.85rem; color: var(--text-muted); }
.review-decision { display: flex; flex-wrap: wrap; gap: 0.25rem 0.75rem; margin: 0 0 0.6rem; font-size: 0.85rem; color: var(--text-muted); }
.review-note { overflow-wrap: anywhere; color: var(--text); }
.review-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.review-form { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; margin: 0; }
.review-note-field input {
    min-width: 14rem;
    padding: 0.5rem 0.7rem;
    border: 1px solid var(--hairline-input);
    border-radius: var(--r-sm, 6px);
    background: var(--surface);
    color: var(--text);
    font: inherit;
    font-size: 0.9rem;
}
.review-note-field input:focus-visible { outline: 2px solid var(--primary-ink); outline-offset: 1px; }

.drawings-layout { grid-template-columns: minmax(0, 1fr); }

.back-arrow {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-muted);
    text-decoration: none;
}

.back-arrow:hover,
.back-arrow:focus-visible { color: var(--primary-ink); text-decoration: none; }

.stat-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
    gap: 0.75rem;
    margin: 1.25rem 0;
}

.stat-card {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.9rem 1rem;
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    background: var(--surface);
    color: var(--text);
    text-decoration: none;
}

a.stat-card:hover,
a.stat-card:focus-visible { border-color: var(--primary); text-decoration: none; }

.stat-card-alert { border-color: var(--gold-deep); background: var(--gold-soft); }
.stat-card-label { font-size: 0.78rem; font-weight: 600; color: var(--text-subtle); text-transform: uppercase; letter-spacing: 0.04em; }
.stat-card-value { font-size: 1.05rem; font-weight: 650; color: var(--ink); }
.stat-card-note { font-size: 0.85rem; color: var(--text-muted); }

.item-settings { margin-top: 1.25rem; border-top: 1px solid var(--hairline); padding-top: 0.75rem; }
.item-settings-summary {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    list-style: none;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}
.item-settings-summary::-webkit-details-marker { display: none; }
.item-settings-summary:hover { color: var(--ink); }
.item-settings-body { margin-top: 0.75rem; }

.share-cell { white-space: nowrap; }
.share-cell .share-bar { width: 6rem; min-width: 0; vertical-align: middle; }
.share-pct { display: inline-block; min-width: 3.5rem; margin-left: 0.5rem; text-align: right; font-variant-numeric: tabular-nums; }
.export-preview { display: grid; gap: 0.75rem; }
.export-preview h2 { margin: 0; font-size: 1.15rem; color: var(--text); }
.export-preview h3 { margin: 0.5rem 0 0; font-size: 1rem; color: var(--text); }
.export-summary { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; }
.export-summary div {
    min-width: 8rem;
    padding: 0.5rem 0.75rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm, 6px);
}
.export-summary dt { font-size: 0.8rem; color: var(--text-muted); }
.export-summary dd { margin: 0; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }
.export-files, .export-rows { overflow-x: auto; }
.export-name { font-family: var(--font-mono); font-size: 0.85rem; overflow-wrap: anywhere; color: var(--text); }
.export-size { white-space: nowrap; color: var(--text-muted); font-variant-numeric: tabular-nums; }
.export-text {
    margin: 0.4rem 0 0;
    max-height: 12rem;
    overflow: auto;
    padding: 0.5rem 0.6rem;
    background: var(--ink-soft);
    border: 1px solid var(--hairline);
    border-radius: var(--r-xs, 4px);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    white-space: pre-wrap;
    overflow-wrap: anywhere;
}
.export-drawing {
    margin: 0;
    padding: 0.75rem 1rem;
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm, 6px);
    background: var(--surface);
    display: grid;
    gap: 0.4rem;
}
.export-drawing legend { padding: 0 0.35rem; font-weight: 600; color: var(--text); }
.export-drawing-files { margin: 0 0 0 1.75rem; padding: 0; list-style: none; display: grid; gap: 0.2rem; }
.export-files table { min-width: 40rem; }
.export-rows table { min-width: 44rem; }
.export-drawing-files .export-size { font-size: 0.85rem; }
.sg-lede { margin: 0 0 1rem; max-width: 72ch; color: var(--text-muted); line-height: 1.55; }
.sg-subheading { margin: 1.25rem 0 0.6rem; font-size: 1rem; color: var(--text); }
.sg-levers { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 18rem), 1fr)); }
.sg-lever {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    padding: 0.85rem 1rem;
    box-shadow: var(--card-shadow);
}
.sg-lever-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.4rem 0.75rem; margin-bottom: 0.35rem; }
.sg-lever-title { font-weight: 600; color: var(--text); }
.sg-lever-body { margin: 0; font-size: 0.9rem; color: var(--text-muted); line-height: 1.5; }
.sg-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.15rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--hairline-strong);
    background: var(--cream);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
.sg-badge-user { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.sg-badge-per-project { background: var(--primary-soft); border-color: var(--primary-ink); color: var(--primary-ink); }
.sg-badge-settime { background: var(--cream); border-color: var(--hairline-strong); color: var(--text-muted); }
.sg-groups { display: grid; gap: 0.75rem; grid-template-columns: repeat(auto-fill, minmax(min(100%, 22rem), 1fr)); }
.sg-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    padding: 1rem 1.1rem;
    box-shadow: var(--card-shadow);
    min-width: 0;
}
.sg-group-head { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 0.4rem 0.75rem; }
.sg-group-head h3 { margin: 0; font-size: 1rem; color: var(--text); }
.sg-what { margin: 0; color: var(--text); line-height: 1.5; }
.sg-facts { display: grid; grid-template-columns: minmax(6.5rem, max-content) 1fr; gap: 0.35rem 0.75rem; margin: 0; font-size: 0.9rem; }
.sg-facts dt { color: var(--text-subtle); }
.sg-facts dd { margin: 0; color: var(--text); overflow-wrap: anywhere; }
.sg-current { font-variant-numeric: tabular-nums; }
.sg-example { color: var(--text-muted); }
.sg-effects { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.3rem; }
.sg-effect {
    padding: 0.1rem 0.5rem;
    border-radius: var(--r-xs);
    border: 1px solid var(--hairline);
    background: var(--ink-soft);
    color: var(--text);
    font-size: 0.78rem;
}
.sg-effect-weights { border-color: var(--gold-deep); background: var(--gold-soft); color: var(--warn-ink); }
.sg-effect-recognition { border-color: var(--primary-ink); background: var(--primary-soft); color: var(--primary-ink); }
.sg-note {
    margin: 0;
    padding: 0.5rem 0.7rem;
    border-left: 3px solid var(--gold);
    background: var(--gold-soft);
    color: var(--text);
    font-size: 0.85rem;
    border-radius: 0 var(--r-xs) var(--r-xs) 0;
}
.sg-keys { display: flex; flex-wrap: wrap; align-items: center; gap: 0.3rem; margin: 0.25rem 0 0; padding-top: 0.5rem; border-top: 1px dashed var(--hairline); font-size: 0.78rem; }
.sg-keys-label { color: var(--text-subtle); margin-right: 0.25rem; }
.sg-raw-heading { margin: 2.25rem 0 0.5rem; padding-top: 1.25rem; border-top: 1px solid var(--hairline); font-size: 1.15rem; color: var(--text); }
@media (max-width: 560px) {
    .sg-facts { grid-template-columns: 1fr; gap: 0.15rem; }
    .sg-facts dd { margin-bottom: 0.35rem; }
}
/* ===== portal-viewers: AI label chip, drawing search, similar components ===== */
.cad-ai-chip {
    display: inline-flex;
    align-items: center;
    min-height: 2.25rem;
    padding: 0 0.75rem;
    font-family: var(--font-mono);
    font-size: var(--fs-micro);
    letter-spacing: 0.04em;
    color: var(--cad-text-muted);
    background: var(--cad-panel);
    border: 1px dashed var(--cad-line-strong);
    border-radius: 999px;
    white-space: nowrap;
}
.cad-ai-chip[data-state="on"] { color: var(--cad-accent); border-style: solid; border-color: var(--cad-accent); }
.cad-ai-chip[data-state="off"] { color: var(--cad-text); border-style: solid; }
.cad-ai-chip[data-state="unavailable"] { color: var(--cad-warning); border-color: var(--cad-warning); }
.cad-ai-note {
    margin: 0 0 0.5rem;
    padding: 0.5rem 0.75rem;
    font-size: var(--fs-small);
    color: var(--cad-text);
    background: var(--cad-panel);
    border: 1px solid var(--cad-line-strong);
    border-radius: var(--r-xs);
}
.cad-ai-note[hidden] { display: none; }
.cad-ai-note p { margin: 0 0 0.35rem; }
.cad-ai-note p:last-child { margin-bottom: 0; }
.cad-ai-note .cad-ai-reason { font-weight: 600; }
.cad-ai-note .cad-ai-extra,
.cad-ai-note .cad-ai-issues-heading { color: var(--cad-text-muted); }
.cad-ai-note .cad-ai-issues { margin: 0 0 0.35rem; padding-left: 1.2rem; overflow-wrap: anywhere; }
.cad-ai-note a { color: var(--cad-accent); }
.cad-search { display: inline-flex; align-items: center; gap: 0.3rem; flex-wrap: nowrap; }
.cad-search-input {
    font: inherit;
    font-family: var(--font-mono);
    font-size: var(--fs-micro);
    min-height: 2.25rem;
    width: 12rem;
    max-width: 40vw;
    padding: 0 0.6rem;
    color: var(--cad-text);
    background: var(--cad-panel-raised);
    border: 1px solid var(--cad-line-strong);
    border-radius: var(--r-xs);
}
.cad-search-input::placeholder { color: var(--cad-text-muted); }
.cad-search-input:focus-visible { outline: 2px solid var(--cad-focus); outline-offset: 2px; }
.cad-search-input[aria-invalid="true"] { border-color: var(--cad-error); }
.cad-search-count { font-family: var(--font-mono); font-size: var(--fs-micro); color: var(--cad-text-muted); white-space: nowrap; min-width: 4ch; }
.cad-tool:disabled { opacity: 0.45; cursor: default; }
.cad-viewer svg .cad-ai-label {
    fill: var(--cad-focus);
    stroke: var(--cad-bg);
    stroke-width: 2px;
    paint-order: stroke;
    stroke-linejoin: round;
    vector-effect: non-scaling-stroke;
    font-family: system-ui, sans-serif;
    font-weight: 600;
    pointer-events: none;
    user-select: none;
}
.cad-viewer[data-ai="off"] svg .cad-ai-labels { display: none; }
.cad-viewer svg .cad-search-hit {
    fill: none;
    stroke: var(--cad-focus);
    stroke-width: 2px;
    vector-effect: non-scaling-stroke;
    pointer-events: none;
}
.cad-viewer svg .cad-search-hit[data-current="true"] { stroke: var(--cad-accent); stroke-width: 3.5px; }
.cad-viewer svg [data-similar="true"] {
    stroke: var(--cad-accent);
    stroke-width: 3px;
    vector-effect: non-scaling-stroke;
}
.cad-viewer .cad-similar-note { color: var(--cad-accent); }
.frame-similar-note { color: var(--text-muted); }

.print-only { display: none; }

@media print {
    :root, :root[data-theme="dark"] {
        color-scheme: light;
        --paper: #FFFFFF;
        --surface: #FFFFFF;
        --cream: #F3F4F6;
        --shell-bg: #FFFFFF;
        --text: #0F172A;
        --ink: #0F172A;
        --text-muted: #334155;
        --text-subtle: #475569;
        --hairline: #CBD5E1;
        --hairline-strong: #94A3B8;
        --primary: #1D4ED8;
        --primary-ink: #1D4ED8;
        --ok: #15803D;
        --warn-ink: #92400E;
        --accent-red-ink: #B91C1C;
        --card-shadow: none;
        --gold: #F59E0B;
        --gold-deep: #B45309;
        --gold-soft: #FFFBEB;
        --ink-mid: #1E293B;
        --ink-soft: rgba(15, 23, 42, 0.05);
        --accent-red: #DC2626;
        --accent-red-soft: #FEF2F2;
        --status-waiting: #2563EB;
        --hairline-input: #94A3B8;
        --primary-hover: #1D4ED8;
        --primary-soft: #EAF0FD;
        --primary-btn: #2563EB;
        --primary-btn-hover: #1D4ED8;
        --ok-soft: #ECFDF3;
    }

    body, body.app-shell { display: block; background: #FFFFFF; color: #0F172A; }
    body.app-shell .site-nav, .site-footer, .view-tabs, .back-arrow, .back-link, .export-actions, .form-actions, .print-hide { display: none; }
    body.app-shell .site-main { padding: 0; max-width: none; }
    .print-only { display: block; }
    .summary-grid { display: block; }
    .summary-card { break-inside: avoid; margin-bottom: 1rem; box-shadow: none; }
    .print-generated { color: #475569; font-size: 0.85rem; margin: 0.25rem 0 0; }
}

#frameCanvasFrame[data-canvas-theme="light"],
#frameCanvasFrame[data-canvas-theme="light"] .frame-canvas { background: #F3F4F6; }
#frameCanvasFrame[data-canvas-theme="dark"],
#frameCanvasFrame[data-canvas-theme="dark"] .frame-canvas { background: #0B1220; }

.task-panel,
.task-section { margin: 1.25rem 0; min-width: 0; }

.task-heading {
    margin: 0 0 0.6rem;
    font-size: 0.95rem;
    font-weight: 650;
    color: var(--ink);
}

.task-list,
.task-items {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.task,
.task-item {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: start;
    gap: 0.5rem 0.85rem;
    padding: 0.75rem 0.9rem;
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    background: var(--surface);
    color: var(--text);
    min-width: 0;
}

.task-sub { margin: -0.25rem 0 0 1.25rem; min-width: 0; }
.task-item { padding: 0.6rem 0.75rem; }

.task-marker {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 650;
    line-height: 1.3;
    white-space: nowrap;
}

.task-shape {
    flex: none;
    width: 0.6rem;
    height: 0.6rem;
    background: currentColor;
}

.task-marker-error { color: var(--accent-red-ink); background: var(--accent-red-soft); }
.task-marker-error .task-shape { border-radius: 1px; }

.task-marker-warning { color: var(--warn-ink); background: var(--gold-soft); }
.task-marker-warning .task-shape { clip-path: polygon(50% 0, 100% 100%, 0 100%); width: 0.7rem; }

.task-marker-flagged { color: var(--primary-ink); background: var(--primary-soft); }
.task-marker-flagged .task-shape { transform: rotate(45deg); width: 0.5rem; height: 0.5rem; }

.task-marker-pending { color: var(--text-muted); background: var(--cream); }
.task-marker-pending .task-shape { background: transparent; border: 2px solid currentColor; border-radius: 50%; }

.task-marker-done { color: var(--ok); background: var(--ok-soft); }
.task-marker-done .task-shape {
    width: 0.35rem;
    height: 0.65rem;
    background: transparent;
    border: solid currentColor;
    border-width: 0 2px 2px 0;
    transform: translateY(-1px) rotate(45deg);
    margin: 0 0.1rem;
}

.task-body { min-width: 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.25rem 0.6rem; }

.task-title {
    font-weight: 650;
    color: var(--ink);
    overflow-wrap: anywhere;
    min-width: 0;
}

.task-count {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--ink);
}

.task-detail,
.task-item-message,
.task-item-meta {
    flex-basis: 100%;
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-muted);
    overflow-wrap: anywhere;
}

.task-item-message { color: var(--text); }
.task-item-meta { display: flex; flex-wrap: wrap; gap: 0.15rem 0.9rem; font-size: 0.8rem; }

.task-detail.row-note { color: var(--accent-red-ink); }
.task-detail .row-note-label { color: var(--text-muted); margin-right: 0.35rem; }

.task-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: flex-end;
    gap: 0.4rem 0.85rem;
}

.task-link,
.task-more {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-ink);
}

.task-link:hover,
.task-link:focus-visible,
.task-more:hover,
.task-more:focus-visible { text-decoration: underline; }

.task-more { display: inline-block; margin-top: 0.5rem; }

.task-empty {
    margin: 0;
    padding: 0.75rem 0.9rem;
    border: 1px dashed var(--hairline-strong);
    border-radius: var(--r-sm);
    color: var(--text-muted);
    font-size: 0.9rem;
}

.task-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(6.25rem, 1fr));
    gap: 0.5rem;
    margin: 0;
}

.task-stats .stat-tile { padding: 0.7rem 0.85rem; min-width: 0; }
.task-stats .stat-value { font-size: 1.35rem; color: var(--ink); }
.task-stats .stat-value-alert { color: var(--accent-red-ink); }
.task-stats .stat-label { color: var(--text-muted); overflow-wrap: anywhere; }

.task-meta { font-size: 0.875rem; }

@media (max-width: 640px) {
    .task,
    .task-item { grid-template-columns: minmax(0, 1fr); }
    .task-marker { justify-self: start; }
    .task-actions { justify-content: flex-start; }
    .task-sub { margin-left: 0.5rem; }
}
.elements-intro { color: var(--text-muted); margin: 0 0 0.4rem; max-width: 70ch; }
.elements-rules { color: var(--text-subtle); font-size: 0.85rem; margin: 0 0 1rem; max-width: 70ch; }
.elements-counts { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 0.5rem 1.5rem; margin: 0 0 1rem; }
.elements-total { font-weight: 600; margin: 0; flex-basis: 100%; }
.elements-count-list { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; margin: 0; }
.elements-count-heading { color: var(--text-subtle); font-size: 0.8rem; font-weight: 600; margin-right: 0.25rem; }
.elements-count {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin: 0;
    padding: 0.2rem 0.6rem;
    border: 1px solid var(--hairline);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.8rem;
    color: var(--text);
}
.elements-filters { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 0.75rem; margin: 0 0 1rem; }
.elements-filters .field { margin: 0; min-width: 9rem; flex: 1 1 9rem; }
.elements-filters .field input[type="search"] { width: 100%; }
.elements-filter-actions { display: flex; flex-wrap: wrap; gap: 0.5rem; margin: 0; }
.elements-showing { color: var(--text-muted); font-size: 0.85rem; margin: 0 0 0.5rem; }
.elements-table-card { max-width: 100%; }
.elements-table td { vertical-align: top; }
.elements-mark { font-weight: 600; white-space: nowrap; }
.elements-rebar { white-space: nowrap; }
.elements-reasons { min-width: 11rem; font-size: 0.82rem; }
.elements-reason-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.15rem; }
.elements-reason-list a { color: var(--primary-ink); }
.elements-reason-none { color: var(--text-subtle); }
.elements-rule-ids { color: var(--text-subtle); font-family: var(--font-mono, monospace); font-size: 0.75rem; overflow-wrap: anywhere; }
.elements-review { font-size: 0.8rem; font-weight: 600; white-space: nowrap; color: var(--text-muted); }
.elements-review-flagged { color: var(--accent-red-ink); }
.elements-review-accepted { color: var(--ok); }
.elements-pager { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.75rem; margin: 1rem 0; }
.elements-page-of { color: var(--text-muted); font-size: 0.85rem; }
.confidence-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.15rem 0.55rem;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 700;
    line-height: 1.3;
    white-space: nowrap;
}
.confidence-badge::before { content: ""; width: 0.45rem; height: 0.45rem; border-radius: 999px; background: currentColor; }
.confidence-high { color: var(--ok); background: var(--ok-soft); }
.confidence-medium { color: var(--warn-ink); background: var(--gold-soft); }
.confidence-medium::before { border-radius: 1px; }
.confidence-low { color: var(--accent-red-ink); background: var(--accent-red-soft); }
.confidence-low::before { border-radius: 0; transform: rotate(45deg); }
.confidence-excluded { color: var(--text-muted); background: var(--ink-soft); border-style: dashed; }
.confidence-excluded::before { background: transparent; border: 1px solid currentColor; }
.usage-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--r-sm);
    box-shadow: var(--card-shadow);
    padding: 1rem 1.25rem;
    min-width: 0;
}
.usage-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 16rem), 1fr));
    gap: 1rem 2rem;
}
.usage-line { --usage-fill: var(--primary); display: flex; flex-direction: column; gap: 0.5rem; min-width: 0; }
.usage-line[data-usage-state="near"] { --usage-fill: var(--gold-deep); }
.usage-line[data-usage-state="limit"] { --usage-fill: var(--accent-red); }
.usage-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.25rem 0.75rem;
}
.usage-text { color: var(--ink); font-weight: 600; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.usage-flag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: var(--fs-small);
    font-weight: 600;
    color: var(--warn-ink);
}
.usage-flag-mark {
    display: inline-grid;
    place-items: center;
    width: 1.1em;
    height: 1.1em;
    border-radius: 50%;
    border: 1.5px solid currentColor;
    font-size: 0.8em;
    line-height: 1;
}
.usage-line[data-usage-state="limit"] .usage-flag { color: var(--accent-red-ink); }
.usage-bar {
    -webkit-appearance: none;
    appearance: none;
    display: block;
    width: 100%;
    height: 0.5rem;
    border: 0;
    border-radius: 999px;
    overflow: hidden;
    background: var(--hairline-strong);
    color: var(--usage-fill);
}
.usage-bar::-webkit-progress-bar { background: var(--hairline-strong); border-radius: 999px; }
.usage-bar::-webkit-progress-value { background: var(--usage-fill); border-radius: 999px; }
.usage-bar::-moz-progress-bar { background: var(--usage-fill); border-radius: 999px; }
.usage-hint { margin: 0.75rem 0 0; font-size: var(--fs-small); color: var(--text-muted); }
.usage-subheading { margin: 1.25rem 0 0.5rem; font-size: 1rem; }