/* 文档工作台布局；产品示例在隔离 iframe 内使用真实组件与 token。 */
* { box-sizing: border-box; }
body { margin: 0; color: var(--color-text-primary); background: var(--color-bg-secondary); font-family: var(--typography-family-base), sans-serif; font-size: var(--typography-body-font-size); line-height: var(--typography-body-line-height); -webkit-font-smoothing: antialiased; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
a { color: var(--color-text-brand); text-decoration: none; }
a:hover { text-decoration: underline; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: var(--border-width-strong) solid var(--color-border-brand); outline-offset: var(--spacing-xs); }
h1,h2,h3,p { margin: 0; }
button { color: inherit; }
[hidden] { display: none !important; }
.skip-link { position: absolute; left: var(--spacing-lg); top: var(--spacing-lg); transform: translateY(-300%); z-index: 10; padding: var(--spacing-sm); background: var(--color-bg-primary); }
.skip-link:focus { transform: none; }
.topbar { min-height: calc(var(--spacing-3xl) * 2); padding: var(--spacing-lg) var(--spacing-3xl); display: flex; justify-content: space-between; align-items: center; gap: var(--spacing-lg); border-bottom: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); }
.brand { color: var(--color-text-primary); display: flex; gap: var(--spacing-md); align-items: center; font-size: var(--typography-subtitle-font-size); font-weight: var(--typography-weight-medium); }
.brand:hover { text-decoration: none; }
.brand-mark { width: var(--spacing-4xl); height: var(--spacing-4xl); display: grid; place-items: center; border-radius: var(--radius-lg); color: var(--color-text-inverse); background: var(--color-bg-brand); font-size: var(--typography-subtitle-font-size); }
.brand-sub { color: var(--color-text-tertiary); margin-left: var(--spacing-xs); font-size: var(--typography-body-font-size); font-weight: var(--typography-weight-regular); }
.topbar-right { display: flex; align-items: center; gap: var(--spacing-2xl); font-size: var(--typography-caption-font-size); }
.version { color: var(--color-text-tertiary); letter-spacing: .08em; }
.workspace { display: grid; grid-template-columns: calc(var(--layout-page-width) * .64) minmax(0,1fr); min-height: calc(100vh - var(--spacing-3xl) * 2); }
.sidebar { padding: var(--spacing-3xl) var(--spacing-xl); border-right: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); }
.nav-label,.nav-group-title,.eyebrow { font-size: var(--typography-small-font-size); line-height: var(--typography-small-line-height); color: var(--color-text-tertiary); letter-spacing: .1em; }
.nav-label { padding-left: var(--spacing-md); margin-bottom: var(--spacing-2xl); }
.nav-group { margin-bottom: var(--spacing-xl); }
.nav-group-title { margin: 0 var(--spacing-md) var(--spacing-sm); letter-spacing: .04em; }
.nav-link { display: flex; align-items: center; justify-content: space-between; padding: var(--spacing-sm) var(--spacing-md); color: var(--color-text-secondary); border-radius: var(--radius-sm); margin-bottom: var(--spacing-xs); }
.nav-link:hover { background: var(--color-bg-secondary); text-decoration: none; }
.nav-link[aria-current="page"] { background: var(--color-bg-brand-alpha-10); color: var(--color-text-brand); font-weight: var(--typography-weight-medium); }
.nav-count { font-size: var(--typography-small-font-size); opacity: var(--opacity-tertiary); }
.sidebar-note { padding: var(--spacing-lg) var(--spacing-md); border-top: var(--border-width-default) solid var(--color-border-light); margin-top: var(--spacing-3xl); font-size: var(--typography-caption-font-size); }
.sidebar-note p { margin: var(--spacing-sm) 0 var(--spacing-md); color: var(--color-text-tertiary); }
.status-dot { display: inline-block; width: var(--spacing-sm); height: var(--spacing-sm); background: var(--color-bg-brand); border-radius: var(--radius-full); margin-right: var(--spacing-sm); }
main { min-width: 0; max-width: calc(var(--layout-page-width) * 3.8); padding: var(--spacing-3xl) var(--spacing-4xl); }
.breadcrumb { font-size: var(--typography-caption-font-size); color: var(--color-text-tertiary); margin-bottom: var(--spacing-3xl); }
.page-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: var(--spacing-lg); margin-bottom: var(--spacing-3xl); }
.page-heading .eyebrow { color: var(--color-text-brand); margin-bottom: var(--spacing-sm); }
h1 { font-size: var(--typography-hero-font-size); line-height: var(--typography-hero-line-height); font-weight: var(--typography-weight-medium); letter-spacing: -.02em; }
.intro { max-width: calc(var(--layout-page-width) * 1.8); color: var(--color-text-tertiary); margin-top: var(--spacing-md); }
.page-label { flex: none; color: var(--color-text-quaternary); font-size: var(--typography-small-font-size); letter-spacing: .06em; border: var(--border-width-default) solid var(--color-border-light); padding: var(--spacing-xs) var(--spacing-sm); border-radius: var(--radius-full); }
.section { margin-bottom: var(--spacing-3xl); }
.section-head { display: flex; gap: var(--spacing-md); align-items: baseline; margin-bottom: var(--spacing-lg); }
h2 { font-size: var(--typography-subtitle-font-size); line-height: var(--typography-subtitle-line-height); font-weight: var(--typography-weight-medium); }
h3 { font-size: var(--typography-body-font-size); line-height: var(--typography-body-line-height); font-weight: var(--typography-weight-medium); }
.section-head p,.muted { font-size: var(--typography-caption-font-size); color: var(--color-text-tertiary); }
.brand-specimen { display: grid; grid-template-columns: 1.2fr 1fr; background: var(--color-bg-primary); border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-xl); overflow: hidden; margin-bottom: var(--spacing-3xl); }
.brand-color { min-height: calc(var(--spacing-4xl) * 4); padding: var(--spacing-2xl); background: var(--color-bg-brand); color: var(--color-text-inverse); display: flex; flex-direction: column; justify-content: space-between; }
.brand-color strong { font-size: var(--typography-display-font-size); line-height: var(--typography-display-line-height); font-weight: var(--typography-weight-medium); }
.brand-color span { opacity: var(--opacity-secondary); font-size: var(--typography-caption-font-size); }
.brand-guidance { padding: var(--spacing-2xl); display: flex; flex-direction: column; justify-content: center; gap: var(--spacing-md); }
.brand-guidance p { color: var(--color-text-tertiary); font-size: var(--typography-caption-font-size); }
.palette { display: grid; grid-template-columns: repeat(auto-fit,minmax(calc(var(--spacing-4xl) * 3),1fr)); gap: var(--spacing-md); }
.swatch { display: flex; flex-direction: column; align-items: stretch; justify-content: flex-start; text-align: left; padding: 0; border: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); border-radius: var(--radius-md); overflow: hidden; min-width: 0; }
.swatch:hover { border-color: var(--color-border-brand); }
.swatch-color { display: block; flex: 0 0 calc(var(--spacing-4xl) * 2); width: 100%; height: calc(var(--spacing-4xl) * 2); border-bottom: var(--border-width-default) solid var(--color-border-light); }
.swatch-label { display: flex; flex: 1; flex-direction: column; align-items: stretch; justify-content: flex-start; padding: var(--spacing-md); }
.swatch-label strong { display: block; flex: 1; font-size: var(--typography-caption-font-size); font-weight: var(--typography-weight-medium); overflow-wrap: anywhere; }
.swatch-label code { display: block; color: var(--color-text-tertiary); margin-top: var(--spacing-xs); font-size: var(--typography-small-font-size); }
code, pre { font-family: ui-monospace, monospace; }
.gradient-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--spacing-lg); }
.gradient-card { padding: 0; text-align: left; border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); background: var(--color-bg-primary); overflow: hidden; }
.gradient-card:hover { border-color: var(--color-border-brand); }
.gradient-color { display: block; height: calc(var(--spacing-4xl) * 3); }
.gradient-info { display: grid; gap: var(--spacing-xs); padding: var(--spacing-lg); }
.gradient-info code { font-size: var(--typography-small-font-size); color: var(--color-text-tertiary); overflow-wrap: anywhere; }
.note { border-left: var(--border-width-strong) solid var(--color-border-brand); padding: var(--spacing-md) var(--spacing-lg); background: var(--color-bg-brand-alpha-10); color: var(--color-text-secondary); font-size: var(--typography-caption-font-size); margin-top: var(--spacing-xl); }
.toolbar { display: flex; gap: var(--spacing-md); flex-wrap: wrap; align-items: center; margin-bottom: var(--spacing-xl); }
.search { min-width: 0; flex: 1; }
.search input { width: 100%; min-height: var(--control-height-md); padding: var(--spacing-sm) var(--spacing-md); border-radius: var(--radius-md); border: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); }
.select { border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); padding: var(--spacing-sm) var(--spacing-md); min-height: var(--control-height-md); background: var(--color-bg-primary); }
.result-count { color: var(--color-text-tertiary); font-size: var(--typography-caption-font-size); }
.table-wrap { overflow: auto; border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); background: var(--color-bg-primary); }
table { width: 100%; border-collapse: collapse; text-align: left; }
th { font-size: var(--typography-caption-font-size); color: var(--color-text-tertiary); background: var(--color-bg-tertiary); font-weight: var(--typography-weight-regular); white-space: nowrap; }
td,th { padding: var(--spacing-md) var(--spacing-lg); border-bottom: var(--border-width-default) solid var(--color-border-light); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td { font-size: var(--typography-caption-font-size); }
td code { overflow-wrap: anywhere; }
.token-name { color: var(--color-text-brand); border: 0; background: transparent; padding: 0; text-align: left; font-family: ui-monospace, monospace; overflow-wrap: anywhere; }
.token-value { display: inline-flex; align-items: center; gap: var(--spacing-sm); overflow-wrap: anywhere; }
.token-dot { flex: none; width: var(--spacing-lg); height: var(--spacing-lg); border-radius: var(--radius-sm); border: var(--border-width-default) solid var(--color-border-light); }
.pill { display: inline-block; border-radius: var(--radius-sm); padding: var(--spacing-xxs) var(--spacing-sm); background: var(--color-bg-secondary); color: var(--color-text-tertiary); font-size: var(--typography-small-font-size); white-space: nowrap; }
.type-list { border-radius: var(--radius-md); background: var(--color-bg-primary); border: var(--border-width-default) solid var(--color-border-light); }
.type-row { display: grid; grid-template-columns: calc(var(--spacing-4xl) * 3) minmax(0,1fr) auto; align-items: center; gap: var(--spacing-lg); padding: var(--spacing-xl); border-bottom: var(--border-width-default) solid var(--color-border-light); }
.type-row:last-child { border-bottom: 0; }
.type-meta { display: grid; gap: var(--spacing-xs); font-size: var(--typography-caption-font-size); }
.type-meta span { color: var(--color-text-tertiary); font-size: var(--typography-small-font-size); }
.type-sample { overflow-wrap: anywhere; }
.type-weight { color: var(--color-text-tertiary); font-size: var(--typography-small-font-size); }
.scale-row { display: flex; align-items: center; gap: var(--spacing-lg); padding: var(--spacing-md) var(--spacing-lg); border-bottom: var(--border-width-default) solid var(--color-border-light); }
.scale-name { width: calc(var(--spacing-4xl) * 3); flex: none; font-size: var(--typography-caption-font-size); }
.scale-measure { background: var(--color-bg-brand); height: var(--spacing-lg); min-width: var(--border-width-default); }
.radius-grid,.effect-grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(calc(var(--spacing-4xl) * 4),1fr)); gap: var(--spacing-lg); }
.measure-card { padding: var(--spacing-xl); border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); background: var(--color-bg-primary); }
.radius-sample { width: calc(var(--spacing-4xl) * 2); height: calc(var(--spacing-4xl) * 2); background: var(--color-bg-brand-alpha-10); border: var(--border-width-strong) solid var(--color-border-brand); margin-bottom: var(--spacing-lg); }
.effect-sample { margin: var(--spacing-lg) 0 var(--spacing-2xl); padding: var(--spacing-lg); background: var(--color-bg-primary); border-radius: var(--radius-md); color: var(--color-text-brand); }
.measure-card code { font-size: var(--typography-small-font-size); overflow-wrap: anywhere; color: var(--color-text-tertiary); }
.icon-library-grid { grid-template-columns:repeat(4,minmax(0,1fr)); }
.icon-library-card { min-width:0; padding:var(--spacing-sm); overflow-wrap:anywhere; }
.icon-library-card .copy-button { padding:var(--spacing-xs); }
.icon-library-card-header { display:flex; flex-flow:row-reverse wrap; align-items:flex-start; justify-content:space-between; gap:var(--spacing-xs); margin-bottom:var(--spacing-sm); }
.icon-library-card-header h3 { flex:1; min-width:0; }
.icon-library-copy-actions { display:flex; flex-wrap:wrap; justify-content:flex-end; gap:var(--spacing-xs); max-width:100%; }
.icon-library-copy-state { display:flex; flex-direction:column; align-items:center; gap:var(--spacing-xs); }
.icon-library-copy-state small { font-size:var(--typography-small-font-size); color:var(--color-text-tertiary); }
.icon-library-states { display:flex; flex-wrap:wrap; gap:var(--spacing-lg); }
.icon-library-state { display:flex; flex-direction:column; align-items:center; gap:var(--spacing-xs); font-size:var(--typography-caption-font-size); }
.icon-library-sample { display:flex; align-items:center; justify-content:center; min-width:var(--control-height-lg); height:var(--control-height-lg); border-radius:var(--radius-sm); }
.icon-library-sample--inverse { background:var(--color-bg-brand); }
.icon-library-state small { color:var(--color-text-tertiary); }
.component-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: var(--spacing-xl); }
.component-grid--full { grid-template-columns: repeat(auto-fit,minmax(min(100%,calc(var(--layout-page-width) + var(--spacing-lg) * 2)),1fr)); align-items: start; }
.component-card { min-width: 0; border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-xl); background: var(--color-bg-primary); overflow: hidden; }
.component-preview { height: calc(var(--spacing-4xl) * 5); display: flex; justify-content: center; align-items: center; overflow: hidden; background: var(--color-bg-tertiary); padding: var(--spacing-lg); border-bottom: var(--border-width-default) solid var(--color-border-light); }
.component-preview iframe { width: 100%; height: 100%; border: 0; background: transparent; }
.component-info { padding: var(--spacing-lg); }
.component-info-top { display: flex; gap: var(--spacing-sm); align-items: baseline; justify-content: space-between; }
.component-link { border: 0; background: transparent; padding: 0; color: var(--color-text-brand); font-size: var(--typography-caption-font-size); }
.component-info code { display: block; margin-top: var(--spacing-xs); font-size: var(--typography-small-font-size); color: var(--color-text-tertiary); }
.component-info p { font-size: var(--typography-caption-font-size); color: var(--color-text-tertiary); margin-top: var(--spacing-sm); }
.empty { padding: var(--spacing-4xl); text-align: center; color: var(--color-text-tertiary); background: var(--color-bg-primary); border-radius: var(--radius-md); }
.template-layout { display: grid; grid-template-columns: var(--layout-page-width) minmax(0,1fr); gap: var(--spacing-3xl); align-items: start; }
.template-buttons { display: flex; flex-wrap: wrap; gap: var(--spacing-sm); align-content: flex-start; align-items: flex-start; }
.template-screen { min-width: 0; }
.template-page-groups { display: grid; gap: var(--spacing-xl); min-width: 0; align-content: start; }
.template-page-group { min-width: 0; }
.template-page-group h2 { margin-bottom: var(--spacing-sm); font-size: var(--typography-caption-font-size); line-height: var(--typography-caption-line-height); color: var(--color-text-secondary); }
.template-button { display: inline-flex; width: fit-content; max-width: 100%; align-items: center; text-align: left; font-size: var(--typography-caption-font-size); line-height: var(--typography-caption-line-height); border: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); border-radius: var(--radius-md); padding: var(--spacing-sm) var(--spacing-md); }
.template-button[aria-pressed="true"] { border-color: var(--color-border-brand); background: var(--color-bg-brand-alpha-10); }
.template-button span { display: block; margin-top: var(--spacing-xs); color: var(--color-text-tertiary); font-size: var(--typography-caption-font-size); }
.phone-frame { width: var(--layout-page-width); height: var(--layout-page-height); max-width: 100%; box-sizing: content-box; border-radius: var(--radius-3xl); overflow: hidden; border: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); }
.phone-frame iframe { display: block; width: 100%; height: var(--layout-page-height); border: 0; }
.phone-frame.full-preview { width: 100%; max-width: none; padding: 0; height: calc(var(--preview-height,var(--layout-page-height)) * var(--preview-scale,1)); border: 0; border-radius: 0; background: transparent; }
.phone-frame.full-preview iframe { width: var(--preview-width,var(--layout-page-width)); height: var(--preview-height,var(--layout-page-height)); }
.template-caption { display: flex; justify-content: space-between; margin-top: var(--spacing-md); font-size: var(--typography-caption-font-size); }
footer { border-top: var(--border-width-default) solid var(--color-border-light); margin-top: var(--spacing-4xl); padding-top: var(--spacing-xl); color: var(--color-text-quaternary); font-size: var(--typography-small-font-size); }
dialog { width: min(calc(var(--layout-page-width) * 2),calc(100% - var(--spacing-3xl))); max-height: calc(100vh - var(--spacing-3xl)); border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-xl); padding: var(--spacing-2xl); background: var(--color-bg-primary); color: var(--color-text-primary); }
dialog::backdrop { background: var(--color-text-primary); opacity: var(--opacity-mask); }
.dialog-top { display: flex; justify-content: space-between; gap: var(--spacing-lg); align-items: flex-start; margin-bottom: var(--spacing-xl); }
.icon-close { border: 0; background: var(--color-bg-secondary); width: var(--spacing-3xl); height: var(--spacing-3xl); border-radius: var(--radius-full); font-size: var(--typography-display-font-size); flex: none; }
.dialog-preview { width: 100%; height: calc(var(--layout-page-height) * .55); border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); background: var(--color-bg-tertiary); margin-bottom: var(--spacing-xl); }
.dialog-section { margin-top: var(--spacing-xl); }
.dialog-section h3 { margin-bottom: var(--spacing-md); }
.code-block { padding: var(--spacing-lg); border-radius: var(--radius-md); background: var(--color-bg-secondary); overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font-size: var(--typography-caption-font-size); }
.copy-button { padding: var(--spacing-xs) var(--spacing-md); background: var(--color-bg-brand-alpha-10); border: var(--border-width-default) solid transparent; color: var(--color-text-brand); border-radius: var(--radius-sm); font-size: var(--typography-caption-font-size); }
.detail-pair { display: grid; grid-template-columns: calc(var(--spacing-4xl) * 3) minmax(0,1fr); gap: var(--spacing-lg); padding: var(--spacing-sm) 0; border-bottom: var(--border-width-default) solid var(--color-border-light); font-size: var(--typography-caption-font-size); }
.detail-pair > :first-child { color: var(--color-text-tertiary); }
.detail-pair code { overflow-wrap: anywhere; }
#toast { position: fixed; bottom: var(--spacing-2xl); left: 50%; transform: translateX(-50%); padding: var(--spacing-sm) var(--spacing-lg); background: var(--color-text-primary); color: var(--color-text-inverse); border-radius: var(--radius-md); font-size: var(--typography-caption-font-size); z-index: 20; max-width: calc(100% - var(--spacing-3xl)); }
@media (max-width: 1100px) { main { padding: var(--spacing-2xl); } .workspace { grid-template-columns: calc(var(--layout-page-width) * .53) minmax(0,1fr); } .page-label { display: none; } .template-layout { grid-template-columns: var(--layout-page-width) minmax(0,1fr); } .template-buttons { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 760px) { .workspace { display: block; } .sidebar { padding: var(--spacing-md) var(--spacing-lg); border-right: 0; border-bottom: var(--border-width-default) solid var(--color-border-light); } .nav-label,.sidebar-note,.nav-group-title { display: none; } #navigation { display: flex; overflow-x: auto; gap: var(--spacing-sm); } .nav-group { display: flex; flex: none; gap: var(--spacing-xs); margin: 0; } .nav-link { white-space: nowrap; gap: var(--spacing-sm); margin: 0; } .topbar { padding: var(--spacing-md) var(--spacing-lg); } .topbar-right .version,.brand-sub { display: none; } main { padding: var(--spacing-xl) var(--spacing-lg); } .breadcrumb { margin-bottom: var(--spacing-xl); } .brand-specimen,.component-grid,.gradient-grid { grid-template-columns: minmax(0,1fr); } .type-row { grid-template-columns: minmax(0,1fr); gap: var(--spacing-sm); } .type-weight { display: none; } .scale-name { width: calc(var(--spacing-4xl) * 2); } .component-preview { height: calc(var(--spacing-4xl) * 4); } .detail-pair { grid-template-columns: minmax(0,1fr); gap: var(--spacing-xs); } }

/* Native Button matrix; each variant has its own independent grid cell. */
.button-specimens { display: grid; grid-template-columns: repeat(auto-fit,minmax(min(100%,var(--layout-page-width)),1fr)); gap: var(--spacing-lg); }
.button-specimen { min-width: 0; overflow: hidden; border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-xl); background: var(--color-bg-primary); }
.button-stage { padding: var(--spacing-2xl) var(--spacing-lg); min-height: calc(var(--spacing-4xl) * 3); display: flex; align-items: center; justify-content: center; background: var(--color-bg-tertiary); }
.button-stage--dark { background: var(--color-bg-brand); }
.button-specimen-info { border-top: var(--border-width-default) solid var(--color-border-light); padding: var(--spacing-lg); }
.button-specimen-info p { color: var(--color-text-tertiary); margin: var(--spacing-xs) 0; font-size: var(--typography-caption-font-size); }
.button-specimen-info a { font-size: var(--typography-caption-font-size); }
.button-tools { display: flex; align-items: end; flex-wrap: wrap; gap: var(--spacing-lg); padding: var(--spacing-xl); margin-bottom: var(--spacing-3xl); border: var(--border-width-default) solid var(--color-border-light); background: var(--color-bg-primary); border-radius: var(--radius-xl); }
.button-tools label { display: grid; gap: var(--spacing-sm); flex: 1; min-width: 0; }
.button-tools input,.button-tools select { width: 100%; min-height: var(--control-height-md); padding: var(--spacing-sm) var(--spacing-md); border: var(--border-width-default) solid var(--color-border-default); border-radius: var(--radius-md); background: var(--color-bg-primary); color: var(--color-text-primary); }
.button-tools p { flex-basis: 100%; font-size: var(--typography-caption-font-size); color: var(--color-text-tertiary); }
.component-variants-link { display: inline-block; margin-top: var(--spacing-sm); font-size: var(--typography-caption-font-size); }

.button-test-panel { margin-bottom: var(--spacing-xl); }
.button-test-panel summary { cursor: pointer; padding: var(--spacing-md) var(--spacing-lg); background: var(--color-bg-primary); border: var(--border-width-default) solid var(--color-border-light); border-radius: var(--radius-md); color: var(--color-text-brand); }
.button-test-panel .button-tools { margin-top: var(--spacing-md); margin-bottom: 0; }

/* Full-content previews override the compact specimen and mobile heights above. */
.full-preview { display: flex; align-items: flex-start; justify-content: center; padding: var(--spacing-lg); min-height: 0; height: calc(var(--preview-height,var(--layout-page-height)) * var(--preview-scale,1) + var(--spacing-lg) * 2); overflow: hidden; }
.full-preview iframe { display: block; flex: none; width: var(--preview-width,calc(var(--layout-page-width) + var(--spacing-lg) * 2)); max-width: none; height: var(--preview-height,var(--layout-page-height)); border: 0; transform: scale(var(--preview-scale,1)); transform-origin: top center; background: transparent; }

@media (max-width: 760px) { .template-layout { grid-template-columns: minmax(0,1fr); } .template-buttons { grid-template-columns: repeat(2,minmax(0,1fr)); } }

/* Stable viewport: page content never determines the template shell geometry. */
.template-phone { width: var(--layout-page-width); min-width: var(--layout-page-width); max-width: var(--layout-page-width); height: var(--layout-page-height); border: 0; border-radius: var(--layout-screen-radius); overflow: hidden; isolation: isolate; box-shadow: 0 0 0 var(--border-width-default) var(--color-border-light); }
.template-phone iframe { width: var(--layout-page-width); height: var(--layout-page-height); border-radius: inherit; }