/* Digital copyright platform prototype · visual baseline v1.0 */
:root {
  color-scheme: light;
  --color-bg-page: #F5F5F7;
  --color-bg-surface: #FFFFFF;
  --color-bg-subtle: #F0F1F3;
  --color-text-primary: #1D1D1F;
  --color-text-secondary: #6E6E73;
  --color-text-disabled: #86868B;
  --color-border: #D2D2D7;
  --color-border-control: #86868B;
  --color-primary: #0066CC;
  --color-primary-hover: #0057AD;
  --color-primary-soft: #EAF3FF;
  --color-success: #247A3D;
  --color-success-soft: #EDF8F0;
  --color-warning: #9A5B00;
  --color-warning-soft: #FFF4E5;
  --color-danger: #B42318;
  --color-danger-soft: #FEF3F2;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  --radius-card: 16px;
  --radius-control: 8px;
  --radius-label: 6px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-6: 24px;
  --space-8: 32px;
  --space-12: 48px;
  --motion-hover: 150ms;
  --motion-feedback: 200ms;
  --shadow-overlay: 0 8px 24px rgba(0, 0, 0, .08);
}

* { box-sizing: border-box; }
html { min-width: 320px; scroll-padding-top: 88px; }
body { margin: 0; background: var(--color-bg-page); color: var(--color-text-primary); font: 400 16px/1.5 var(--font-sans); -webkit-font-smoothing: antialiased; }
body:has(dialog[open]) { overflow: hidden; }
button, input, select, textarea { font: inherit; }
button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled, [aria-disabled="true"] { cursor: not-allowed; }
a { color: var(--color-primary); text-decoration: none; text-underline-offset: 3px; }
a:hover { text-decoration: underline; }
button { color: inherit; }
button, input, select, textarea, summary, [tabindex] { scroll-margin-top: 88px; }
:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; }
label.btn:focus-within { outline: 2px solid var(--color-primary); outline-offset: 3px; }
::selection { background: var(--color-primary-soft); color: var(--color-text-primary); }
img, svg { max-width: 100%; }
img { display: block; }
img:not([src]), img[src=""] { visibility: hidden; }
svg { flex-shrink: 0; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { font-weight: 600; }
ul, ol { padding-inline-start: 24px; }
fieldset { min-width: 0; margin: 0; padding: 0; border: 0; }
legend { padding: 0; }
button:disabled { opacity: .55; }
[hidden] { display: none !important; }
#app { min-height: 100vh; min-height: 100dvh; display: flex; flex-direction: column; }
.app-body { flex: 1; min-width: 0; }
.icon { width: 20px; height: 20px; display: inline-block; fill: none; stroke: currentColor; stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; vertical-align: middle; }
.muted { color: var(--color-text-secondary); }
.fine { font-size: 12px; line-height: 18px; color: var(--color-text-secondary); }
.mono { font-family: var(--font-mono); font-size: .88em; overflow-wrap: anywhere; }
.price, .amount { font-variant-numeric: tabular-nums; }
.price { font-size: 24px; line-height: 32px; font-weight: 600; }
.price small, .amount small { margin-left: 4px; font: 400 12px/18px var(--font-sans); color: var(--color-text-secondary); }
.sr-only { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.divider { height: 1px; border: 0; background: var(--color-border); margin: 24px 0; }

/* The browser is the frame. Content fills its width rather than sitting in a mock device. */
.app-header { height: 64px; background: var(--color-bg-surface); border-bottom: 1px solid var(--color-border); position: sticky; top: 0; z-index: 30; }
.header-inner { width: 100%; max-width: 1328px; min-height: 64px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; gap: 32px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; color: var(--color-text-primary); flex-shrink: 0; text-decoration: none; }
.brand:hover { text-decoration: none; }
.brand-mark { display: inline-flex; width: 32px; height: 32px; justify-content: center; align-items: center; color: var(--color-bg-surface); background: var(--color-text-primary); border-radius: 8px; font-size: 18px; font-weight: 600; }
.brand-mark .icon { width: 21px; height: 21px; }
.brand-name { font-size: 18px; line-height: 24px; font-weight: 600; letter-spacing: -.3px; }
.brand-caption { display: block; font-size: 10px; line-height: 14px; letter-spacing: 1px; color: var(--color-text-secondary); }
.top-nav { display: flex; align-items: center; gap: 4px; }
.nav-link { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; padding: 8px 14px; color: var(--color-text-secondary); border: 0; border-radius: var(--radius-control); background: transparent; font-size: 14px; line-height: 22px; white-space: nowrap; transition: background-color var(--motion-hover), color var(--motion-hover); }
.nav-link:hover { color: var(--color-text-primary); background: var(--color-bg-subtle); text-decoration: none; }
.nav-link.is-active { color: var(--color-primary); background: var(--color-primary-soft); font-weight: 600; }
.header-actions { margin-left: auto; display: flex; align-items: center; gap: 12px; min-width: 0; }
.header-actions .btn { white-space: nowrap; }
.avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--color-primary-soft); color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 600; flex-shrink: 0; }
.menu-toggle { display: none !important; }
.market-container { width: calc(100% - 48px); max-width: 1280px; margin: 0 auto; padding: 32px 0 48px; }
.workspace-shell { display: grid; grid-template-columns: 224px minmax(0, 1fr); min-height: calc(100vh - 64px - 73px); }
.sidebar { background: var(--color-bg-surface); border-right: 1px solid var(--color-border); padding: 24px 12px; display: flex; flex-direction: column; gap: 4px; min-width: 0; }
.sidebar-label { padding: 4px 12px 12px; color: var(--color-text-secondary); font-size: 12px; line-height: 18px; }
.side-link { display: flex; align-items: center; gap: 12px; min-height: 44px; padding: 10px 12px; border-radius: var(--radius-control); color: var(--color-text-secondary); font-size: 14px; line-height: 22px; white-space: nowrap; text-decoration: none; background: transparent; border: 0; text-align: left; transition: color var(--motion-hover), background-color var(--motion-hover); }
.side-link:hover { background: var(--color-bg-subtle); color: var(--color-text-primary); text-decoration: none; }
.side-link.is-active { color: var(--color-primary); background: var(--color-primary-soft); font-weight: 600; }
.side-link .icon { flex: 0 0 20px; }
.sidebar-foot { margin-top: auto; padding-top: 48px; }
.sidebar-foot > .fine { padding: 12px; }
.workspace-main { min-width: 0; padding: 32px; }
.workspace-shell.is-collapsed { grid-template-columns: 64px minmax(0, 1fr); }
.workspace-shell.is-collapsed .sidebar { padding-inline: 8px; }
.workspace-shell.is-collapsed .side-link { justify-content: center; padding: 10px; }
.workspace-shell.is-collapsed .side-label, .workspace-shell.is-collapsed .sidebar-label, .workspace-shell.is-collapsed .sidebar-foot > .fine { display: none; }
.app-footer { background: var(--color-bg-surface); border-top: 1px solid var(--color-border); }
.footer-inner { max-width: 1328px; min-height: 72px; padding: 16px 24px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px 24px; }
.prototype-label { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 12px; line-height: 18px; color: var(--color-text-secondary); }
.prototype-label strong { font-weight: 500; color: var(--color-text-primary); }
.footer-tools { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.footer-tools .btn { font-size: 12px; }

/* Controls and shared surfaces */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; max-width: 100%; padding: 8px 16px; border: 1px solid var(--color-border-control); border-radius: var(--radius-control); background: var(--color-bg-surface); color: var(--color-text-primary); font-size: 14px; line-height: 22px; font-weight: 500; text-align: center; text-decoration: none; transition: background-color var(--motion-hover), border-color var(--motion-hover), color var(--motion-hover), transform var(--motion-hover); }
.btn:hover { background: var(--color-bg-subtle); text-decoration: none; }
.btn:active:not(:disabled) { transform: translateY(1px); }
.btn-primary { min-height: 44px; background: var(--color-primary); border-color: var(--color-primary); color: var(--color-bg-surface); }
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }
.btn-secondary { background: var(--color-bg-surface); }
.btn-danger { color: var(--color-danger); background: var(--color-bg-surface); border-color: var(--color-danger); }
.btn-danger:hover { background: var(--color-danger-soft); }
.btn-text { border-color: transparent; background: transparent; color: var(--color-primary); padding-inline: 8px; }
.btn-text:hover { color: var(--color-primary-hover); background: var(--color-primary-soft); }
.btn-small { min-height: 32px; padding: 4px 10px; font-size: 12px; line-height: 22px; }
.btn.is-loading { cursor: wait; }
.btn.is-loading::before { content: ""; width: 15px; height: 15px; flex-shrink: 0; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin 800ms linear infinite; }
.icon-button { width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; padding: 8px; border-radius: var(--radius-control); border: 1px solid transparent; background: transparent; color: var(--color-text-secondary); transition: background-color var(--motion-hover), color var(--motion-hover); }
.icon-button:hover { color: var(--color-text-primary); background: var(--color-bg-subtle); }
.badge { display: inline-flex; align-items: center; gap: 4px; min-height: 24px; max-width: 100%; padding: 3px 8px; border-radius: var(--radius-label); font-size: 12px; line-height: 18px; font-weight: 500; background: var(--color-bg-subtle); color: var(--color-text-secondary); }
.badge .icon { width: 14px; height: 14px; }
.badge.success { color: var(--color-success); background: var(--color-success-soft); }
.badge.warning { color: var(--color-warning); background: var(--color-warning-soft); }
.badge.danger { color: var(--color-danger); background: var(--color-danger-soft); }
.badge.neutral { color: var(--color-text-secondary); background: var(--color-bg-subtle); }
.badge.blue { color: var(--color-primary); background: var(--color-primary-soft); }
.page-head { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 16px 24px; margin-bottom: 24px; }
.page-head > :first-child { min-width: 0; }
.page-title { font-size: 30px; line-height: 40px; letter-spacing: -.6px; font-weight: 600; overflow-wrap: anywhere; }
.page-description { max-width: 760px; margin-top: 8px; color: var(--color-text-secondary); font-size: 16px; line-height: 24px; }
.page-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; padding-top: 2px; }
.breadcrumb { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; color: var(--color-text-secondary); margin-bottom: 24px; font-size: 14px; line-height: 22px; }
.breadcrumb .icon { width: 14px; height: 14px; }
.breadcrumb a { color: var(--color-text-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.panel { min-width: 0; background: var(--color-bg-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); padding: 24px; }
.panel + .panel { margin-top: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.section-title { font-size: 20px; line-height: 28px; font-weight: 600; letter-spacing: -.2px; }
.field { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
.field-label { display: block; color: var(--color-text-primary); font-size: 14px; line-height: 22px; font-weight: 500; }
.field-label .required, .required { color: var(--color-danger); }
.field-error { min-height: 18px; color: var(--color-danger); font-size: 12px; line-height: 18px; }
.field-error:empty { display: none; }
.input, .select, .textarea { display: block; width: 100%; min-width: 0; min-height: 40px; border: 1px solid var(--color-border-control); border-radius: var(--radius-control); padding: 8px 12px; background: var(--color-bg-surface); color: var(--color-text-primary); font-size: 14px; line-height: 22px; transition: border-color var(--motion-hover), background-color var(--motion-hover); }
.input:hover, .select:hover, .textarea:hover { border-color: var(--color-text-secondary); }
.input:focus, .select:focus, .textarea:focus { border-color: var(--color-primary); }
.input::placeholder, .textarea::placeholder { color: var(--color-text-secondary); }
.input[aria-invalid="true"], .select[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: var(--color-danger); }
.input:disabled, .select:disabled, .textarea:disabled { color: var(--color-text-secondary); background: var(--color-bg-subtle); cursor: not-allowed; }
.textarea { min-height: 120px; resize: vertical; }
.select { padding-right: 32px; }
input[type="checkbox"], input[type="radio"] { accent-color: var(--color-primary); width: 16px; height: 16px; flex-shrink: 0; margin: 3px 0 0; cursor: pointer; }
.checkbox-label { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; line-height: 22px; cursor: pointer; }
.checkbox-label > span { min-width: 0; }
.search-field { position: relative; }
.search-field > .icon { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); width: 18px; height: 18px; color: var(--color-text-secondary); pointer-events: none; }
.search-field .input { padding-left: 40px; }

/* Public gallery */
.market-toolbar { display: flex; align-items: flex-end; flex-wrap: wrap; gap: 16px; margin-bottom: 24px; padding: 20px 24px; background: var(--color-bg-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); }
.market-toolbar > .field:first-child { flex: 1 1 260px; }
.market-toolbar > .field { flex: 0 1 180px; }
.toolbar-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; }
.market-toolbar .btn { min-height: 40px; }
.result-summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; }
.gallery-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; }
.work-card { min-width: 0; background: var(--color-bg-surface); border: 1px solid var(--color-border); border-radius: var(--radius-card); overflow: hidden; transition: border-color var(--motion-hover); }
.work-card:hover { border-color: var(--color-border-control); }
.image-button { display: block; width: 100%; padding: 0; border: 0; background: var(--color-bg-subtle); text-align: left; overflow: hidden; position: relative; }
.image-button:focus-visible { outline-offset: -4px; }
.work-image { width: 100%; height: auto; aspect-ratio: 4 / 3; object-fit: cover; background: var(--color-bg-subtle); transition: transform var(--motion-feedback); }
@media (hover: hover) { .image-button:hover .work-image { transform: scale(1.025); } }
.image-button > .badge { position: absolute; top: 12px; left: 12px; background: var(--color-bg-surface); color: var(--color-text-secondary); }
.work-content { padding: 16px; }
.work-category { display: block; color: var(--color-text-secondary); font-size: 12px; line-height: 18px; margin-bottom: 6px; }
.work-title { display: -webkit-box; overflow: hidden; -webkit-line-clamp: 2; -webkit-box-orient: vertical; font-size: 16px; line-height: 24px; font-weight: 600; color: var(--color-text-primary); }
.work-title a, a.work-title { color: inherit; }
.work-author { margin-top: 6px; color: var(--color-text-secondary); font-size: 12px; line-height: 18px; }
.work-bottom { display: flex; align-items: flex-end; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.work-price { display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px; font-size: 20px; line-height: 28px; font-weight: 600; font-variant-numeric: tabular-nums; }
.work-price small, .work-price .fine { font-size: 12px; line-height: 18px; color: var(--color-text-secondary); font-weight: 400; }
.pagination { display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 32px; }
.pagination .btn { min-width: 40px; padding-inline: 10px; }
.pagination .is-active, .pagination [aria-current="page"] { background: var(--color-primary); color: var(--color-bg-surface); border-color: var(--color-primary); }
.pagination .fine { margin: 0 8px; }

/* Details and licensing */
.detail-grid { display: grid; grid-template-columns: minmax(0, 1.65fr) minmax(320px, 1fr); gap: 32px; align-items: start; }
.detail-visual { min-width: 0; }
.detail-image { width: 100%; height: auto; max-height: 660px; object-fit: contain; background: var(--color-bg-subtle); border-radius: var(--radius-card); }
.detail-visual .image-button { border-radius: var(--radius-card); border: 1px solid var(--color-border); }
.image-caption { display: flex; justify-content: space-between; gap: 12px; align-items: center; padding: 12px 0; color: var(--color-text-secondary); font-size: 12px; line-height: 18px; }
.purchase-panel { position: sticky; top: 88px; }
.purchase-panel .page-title { font-size: 28px; line-height: 38px; }
.purchase-panel > .badge { margin-top: 16px; }
.purchase-panel > .btn-primary { width: 100%; }
.purchase-panel .price { display: block; margin: 24px 0 16px; }
.author-line { display: flex; align-items: center; flex-wrap: wrap; gap: 8px; margin-top: 12px; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; }
.author-line .avatar { width: 28px; height: 28px; font-size: 10px; }
.license-options { display: grid; gap: 12px; margin-top: 24px; }
.license-options > legend, .license-options > .field-label { margin-bottom: 0; }
.license-option { position: relative; display: block; min-width: 0; border: 1px solid var(--color-border-control); border-radius: var(--radius-control); padding: 16px; background: var(--color-bg-surface); cursor: pointer; transition: background-color var(--motion-hover), border-color var(--motion-hover); }
.license-option:hover { background: var(--color-bg-subtle); }
.license-option.is-selected, .license-option:has(input:checked) { border-color: var(--color-primary); background: var(--color-primary-soft); }
.license-option-head { display: flex; align-items: flex-start; gap: 8px; font-size: 14px; line-height: 22px; }
.license-option-head strong { font-weight: 600; }
.license-price { margin-left: auto; font-size: 14px; line-height: 22px; font-weight: 600; white-space: nowrap; font-variant-numeric: tabular-nums; }
.license-price small { font-size: 12px; font-weight: 400; }
.license-option { display: flex; gap: 12px; }
.license-option > span { min-width: 0; flex: 1; }
.license-option > span > .muted { display: block; margin-top: 4px; font-size: 14px; }
.license-option .license-price { display: block; margin-top: 8px; font-size: 18px; line-height: 26px; }
.license-summary { margin-top: 8px; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; }
.license-option .license-summary { margin-left: 24px; }
.terms { max-width: 76ch; font-size: 14px; line-height: 1.7; overflow-wrap: anywhere; }
.terms p + p { margin-top: 12px; }
.terms ul { margin: 12px 0 0; }
.terms li + li { margin-top: 6px; }
.terms summary { cursor: pointer; font-weight: 500; color: var(--color-primary); padding: 8px 0; }
.terms summary + * { margin-top: 12px; }
.info-list { display: grid; grid-template-columns: minmax(92px, 128px) minmax(0, 1fr); gap: 12px 16px; margin: 0; font-size: 14px; line-height: 22px; }
.info-list dt { color: var(--color-text-secondary); }
.info-list dd { margin: 0; min-width: 0; overflow-wrap: anywhere; }
.info-list dd .btn-small { margin: -4px 0 -4px 4px; }
.detail-description { margin-top: 24px; }
.detail-description .section-title { margin-bottom: 16px; }
.detail-description p { max-width: 72ch; line-height: 1.65; }
.record-summary { margin-top: 24px; }
.record-summary > summary { font-size: 14px; line-height: 22px; cursor: pointer; padding: 4px 0; }
.record-summary[open] > summary { margin-bottom: 16px; }

/* Workspace and administrator lists */
.table-wrap { width: 100%; min-width: 0; max-width: 100%; overflow-x: auto; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg-surface); overscroll-behavior-inline: contain; }
.panel .table-wrap { border-radius: var(--radius-control); }
table { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 14px; line-height: 22px; text-align: left; }
th { padding: 14px 16px; background: var(--color-bg-subtle); color: var(--color-text-secondary); font-weight: 500; white-space: nowrap; }
td { padding: 16px; border-top: 1px solid var(--color-border); vertical-align: middle; }
tr { transition: background-color var(--motion-hover); }
tbody tr:hover { background: var(--color-bg-page); }
th.amount, td.amount { text-align: right; white-space: nowrap; }
td > .fine { display: block; margin-top: 4px; }
td > .badge + .badge { margin-left: 4px; }
.table-work { display: flex; align-items: center; gap: 12px; min-width: 200px; }
.table-work > div { min-width: 0; }
.table-work strong, .table-work a { display: block; color: var(--color-text-primary); font-weight: 500; max-width: 260px; }
.table-work .fine { display: block; margin-top: 4px; }
.table-thumb { width: 64px; height: 48px; flex: 0 0 64px; object-fit: cover; border-radius: 6px; background: var(--color-bg-subtle); }
.table-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 4px; min-width: 124px; }
.table-actions .btn { white-space: nowrap; }
.filter-tabs { display: flex; flex-wrap: wrap; gap: 4px; padding-bottom: 12px; margin-bottom: 16px; border-bottom: 1px solid var(--color-border); }
.filter-tab { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 40px; border: 0; border-radius: var(--radius-control); padding: 8px 14px; background: transparent; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; transition: color var(--motion-hover), background-color var(--motion-hover); }
.filter-tab:hover { background: var(--color-bg-subtle); color: var(--color-text-primary); }
.filter-tab.is-active { background: var(--color-primary-soft); color: var(--color-primary); font-weight: 600; }
.tab-count { min-width: 20px; padding: 0 5px; border-radius: 4px; font-size: 12px; line-height: 20px; background: var(--color-bg-subtle); color: var(--color-text-secondary); }
.filter-tab.is-active .tab-count { background: var(--color-bg-surface); color: var(--color-primary); }
.empty-state { padding: 64px 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; text-align: center; min-height: 320px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg-surface); }
.panel .empty-state { border: 0; padding: 32px 16px; }
.state-icon { width: 56px; height: 56px; display: flex; align-items: center; justify-content: center; border-radius: 16px; background: var(--color-bg-subtle); color: var(--color-text-secondary); margin-bottom: 4px; }
.state-icon .icon { width: 26px; height: 26px; }
.empty-state h2, .empty-state h3 { font-size: 20px; line-height: 28px; }
.empty-state p { max-width: 52ch; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; }
.state-actions { display: flex; justify-content: center; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.status-banner { display: flex; align-items: flex-start; gap: 12px; border-radius: var(--radius-control); padding: 16px; margin-bottom: 24px; color: var(--color-primary); background: var(--color-primary-soft); font-size: 14px; line-height: 22px; overflow-wrap: anywhere; }
.status-banner > .icon { margin-top: 1px; }
.status-banner > div { min-width: 0; flex: 1; }
.status-banner.success { background: var(--color-success-soft); color: var(--color-success); }
.status-banner.warning { background: var(--color-warning-soft); color: var(--color-warning); }
.status-banner.danger { background: var(--color-danger-soft); color: var(--color-danger); }
.status-banner.info { background: var(--color-primary-soft); color: var(--color-primary); }
.status-title { font-size: 14px; line-height: 22px; font-weight: 600; }
.status-copy { margin-top: 4px; font-size: 14px; line-height: 22px; }
.status-banner .btn { margin-top: 12px; }
.banner-actions { display: flex; flex-wrap: wrap; gap: 8px; }
.banner-actions:empty { display: none; }
.status-banner .btn-text { color: inherit; margin: 4px 0 -4px -8px; }

/* Upload, read-only application materials, and review */
.form-container { width: 100%; max-width: 800px; }
.form-container > .panel, .form-container > .status-banner { width: 100%; }
.form-container .field + .field { margin-top: 24px; }
.steps { display: flex; align-items: center; gap: 16px; margin-bottom: 32px; padding: 0; list-style: none; }
.step { min-width: 0; flex: 1; display: flex; align-items: center; gap: 8px; color: var(--color-text-secondary); font-size: 14px; line-height: 22px; }
.step:not(:last-child)::after { content: ""; height: 1px; flex: 1; min-width: 16px; margin-left: 8px; background: var(--color-border); }
.step-number { display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 50%; border: 1px solid var(--color-border-control); font-size: 12px; line-height: 18px; flex-shrink: 0; }
.step.is-active { color: var(--color-primary); font-weight: 600; }
.step.is-active .step-number { background: var(--color-primary); color: var(--color-bg-surface); border-color: var(--color-primary); }
.step.is-complete { color: var(--color-success); }
.step.is-complete .step-number { background: var(--color-success-soft); border-color: var(--color-success); }
.step-number .icon { width: 14px; height: 14px; }
.upload-zone { display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 12px; min-height: 260px; padding: 32px 24px; border: 1px dashed var(--color-border-control); border-radius: var(--radius-card); background: var(--color-bg-page); text-align: center; transition: border-color var(--motion-hover), background-color var(--motion-hover); }
.upload-zone.is-dragging { background: var(--color-primary-soft); border-color: var(--color-primary); }
.upload-zone h2, .upload-zone h3 { font-size: 16px; line-height: 24px; }
.upload-zone p { font-size: 14px; line-height: 22px; color: var(--color-text-secondary); }
.upload-icon { width: 48px; height: 48px; border-radius: 12px; background: var(--color-bg-surface); color: var(--color-primary); display: inline-flex; align-items: center; justify-content: center; }
.upload-icon .icon { width: 24px; height: 24px; }
.upload-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-top: 4px; }
.selected-file { display: flex; align-items: center; gap: 16px; padding: 16px; border: 1px solid var(--color-border); border-radius: var(--radius-control); margin-top: 16px; background: var(--color-bg-surface); }
.file-thumb { width: 72px; height: 56px; object-fit: cover; border-radius: 6px; background: var(--color-bg-subtle); flex-shrink: 0; }
.file-info { min-width: 0; flex: 1; font-size: 14px; line-height: 22px; overflow-wrap: anywhere; }
.file-info .fine { margin-top: 4px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.form-grid .field + .field { margin-top: 0; }
.form-grid > .full-width, .form-grid > .span-2 { grid-column: 1 / -1; }
.form-actions { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 12px; margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.form-actions > .btn:first-child:not(:last-child) { margin-right: auto; }
.review-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(300px, 1fr); align-items: start; gap: 24px; }
.review-preview { width: 100%; max-height: 520px; aspect-ratio: 4 / 3; object-fit: contain; background: var(--color-bg-subtle); border-radius: var(--radius-control); }
.review-material { min-width: 0; }
.review-material .section-title { margin-bottom: 16px; }
.review-material .terms { margin-top: 24px; padding: 16px; border-radius: var(--radius-control); background: var(--color-bg-page); }
.review-actions { display: flex; flex-direction: column; align-items: stretch; gap: 16px; }
.review-actions > .badge { align-self: flex-start; }
.review-grid > .panel + .panel, .order-grid > .panel + .panel { margin-top: 0; }

/* The order and the license retain the original transaction information. */
.order-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(300px, 1fr); gap: 24px; align-items: start; }
.order-summary { min-width: 0; }
.order-cover { width: 128px; height: 96px; object-fit: cover; border-radius: var(--radius-control); background: var(--color-bg-subtle); flex-shrink: 0; }
.order-summary > .table-work { gap: 16px; margin-bottom: 24px; }
.order-state { margin-bottom: 24px; }
.order-state .status-banner { margin-bottom: 0; }
.order-facts { margin-top: 24px; }
.order-total { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px; margin: 24px 0; padding-top: 24px; border-top: 1px solid var(--color-border); font-size: 14px; line-height: 22px; }
.order-total .price { text-align: right; }
.payment-panel .section-title { margin-bottom: 16px; }
.payment-panel > .btn { width: 100%; }
.payment-panel > .btn + .btn { margin-top: 8px; }
.payment-panel > .fine { margin-top: 12px; }
.payment-panel .info-list { grid-template-columns: minmax(76px, 1fr) minmax(0, 1.3fr); gap: 12px; }
.payment-panel .info-list dd { text-align: right; }
.license-certificate { max-width: 960px; padding: 32px; }
.certificate-heading { display: flex; align-items: flex-start; justify-content: space-between; flex-wrap: wrap; gap: 16px; padding-bottom: 24px; margin-bottom: 24px; border-bottom: 1px solid var(--color-border); }
.certificate-heading .section-title { margin-bottom: 8px; }
.certificate-number { display: block; color: var(--color-text-secondary); font-family: var(--font-mono); font-size: 12px; line-height: 18px; overflow-wrap: anywhere; }
.license-certificate .terms { padding-top: 24px; margin-top: 24px; border-top: 1px solid var(--color-border); }
.balance-display { display: flex; align-items: baseline; flex-wrap: wrap; gap: 8px; margin: 20px 0 12px; font-size: 32px; line-height: 40px; font-weight: 600; font-variant-numeric: tabular-nums; }
.balance-display small { font-size: 14px; line-height: 22px; font-weight: 400; color: var(--color-text-secondary); }
.account-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; gap: 24px; margin-bottom: 24px; }
.account-grid > .panel { margin: 0; }
.account-grid .section-title { margin-bottom: 20px; }

/* Session and verification screens */
.login-container { min-height: calc(100vh - 64px - 73px); display: flex; align-items: flex-start; justify-content: center; padding: 64px 24px; }
.login-panel { width: 100%; max-width: 400px; }
.login-panel .page-title { margin-bottom: 8px; }
.login-panel .page-description { font-size: 14px; line-height: 22px; margin-bottom: 24px; }
.login-panel .field + .field { margin-top: 20px; }
.login-panel form > .btn-primary { width: 100%; margin-top: 24px; }
.login-demo { margin-top: 24px; padding-top: 24px; border-top: 1px solid var(--color-border); }
.login-demo .fine { margin-bottom: 12px; }
.demo-accounts { display: flex; flex-wrap: wrap; gap: 8px; }
.demo-accounts .btn { flex: 1; }
.verify-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px; align-items: start; }
.verify-grid .section-title { margin-bottom: 16px; }
.verify-grid .upload-zone { min-height: 260px; }
.verify-grid > .panel { margin-top: 0; }
.verify-result { min-width: 0; }
.verify-result .status-banner { margin-bottom: 20px; }
.verify-result .empty-state { min-height: 328px; }
.verify-result > .fine { margin-top: 20px; }

/* Native dialogs provide a real modal focus boundary. */
dialog { width: min(480px, calc(100% - 48px)); max-width: none; max-height: calc(100vh - 48px); max-height: calc(100dvh - 48px); padding: 0; margin: auto; border: 1px solid var(--color-border); border-radius: var(--radius-card); color: var(--color-text-primary); background: var(--color-bg-surface); box-shadow: var(--shadow-overlay); overflow: auto; }
dialog[open] { animation: dialog-enter var(--motion-feedback) ease-out; }
dialog::backdrop { background: rgba(29, 29, 31, .36); }
.dialog-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 24px; border-bottom: 1px solid var(--color-border); }
.dialog-header h2 { font-size: 20px; line-height: 28px; }
.dialog-close { margin: -4px -8px -4px 0; }
.dialog-body { padding: 24px; font-size: 14px; line-height: 22px; }
.dialog-body > p + p { margin-top: 12px; }
.dialog-body > .field { margin-top: 20px; }
.dialog-body > .field:first-child { margin-top: 0; }
.dialog-body .status-banner { margin-bottom: 16px; }
.dialog-body .info-list { grid-template-columns: 88px minmax(0, 1fr); }
.dialog-footer { display: flex; justify-content: flex-end; flex-wrap: wrap; gap: 8px; padding: 16px 24px; border-top: 1px solid var(--color-border); }
.preview-dialog { width: min(1100px, calc(100% - 48px)); }
.preview-dialog .dialog-body { padding: 16px; background: var(--color-bg-page); }
.preview-image { width: 100%; height: auto; max-height: calc(100dvh - 210px); object-fit: contain; }
.scenario-panel { width: min(640px, calc(100% - 48px)); }
.scenario-panel .form-grid { gap: 20px; }
.scenario-panel .btn { justify-content: flex-start; text-align: left; }
.scenario-panel .dialog-footer .btn { justify-content: center; }
#toast { position: fixed; z-index: 100; bottom: 24px; left: 50%; transform: translateX(-50%); width: max-content; max-width: calc(100% - 32px); pointer-events: none; }
.toast { display: flex; align-items: center; gap: 8px; padding: 12px 16px; border: 1px solid var(--color-border); border-radius: var(--radius-control); background: var(--color-bg-surface); color: var(--color-text-primary); font-size: 14px; line-height: 22px; box-shadow: var(--shadow-overlay); animation: page-enter var(--motion-feedback) ease-out; }
.toast .icon { color: var(--color-success); }
.skeleton { background: var(--color-bg-subtle); border-radius: var(--radius-label); min-height: 18px; animation: skeleton-fade 1.2s ease-in-out infinite alternate; }
.skeleton-card { overflow: hidden; padding-bottom: 16px; border: 1px solid var(--color-border); border-radius: var(--radius-card); background: var(--color-bg-surface); }
.skeleton-card > .skeleton:first-child { width: 100%; aspect-ratio: 4 / 3; border-radius: 0; }
.skeleton-card > .skeleton:not(:first-child) { margin: 16px 16px 0; width: calc(100% - 32px); }
.skeleton-card > .skeleton:last-child { width: 55%; }
.page-enter { animation: page-enter var(--motion-feedback) ease-out; }
@keyframes page-enter { from { opacity: .25; transform: translateY(5px); } to { opacity: 1; transform: translateY(0); } }
@keyframes dialog-enter { from { opacity: .3; transform: translateY(6px) scale(.99); } to { opacity: 1; transform: translateY(0) scale(1); } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes skeleton-fade { to { opacity: .5; } }

/* Breakpoints use the available browser width; only individual tables scroll. */
@media (min-width: 1600px) { .workspace-main { padding: 32px 48px 48px; } }
@media (max-width: 1199px) {
  .header-inner { gap: 24px; }
  .gallery-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
  .workspace-shell { grid-template-columns: 64px minmax(0, 1fr); }
  .sidebar { padding-inline: 8px; }
  .side-link { justify-content: center; padding-inline: 10px; }
  .side-label, .sidebar-label, .sidebar-foot > .fine { display: none; }
  .workspace-main { padding: 32px 24px; }
  .detail-grid { gap: 24px; grid-template-columns: minmax(0, 1.3fr) minmax(300px, 1fr); }
  .review-grid { grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr); }
  .order-grid { grid-template-columns: minmax(0, 1.35fr) minmax(280px, 1fr); }
}
@media (max-width: 979px) {
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .brand-caption { display: none; }
  .header-inner { gap: 16px; }
  .header-actions { gap: 8px; }
  .header-actions > .muted { display: none; }
  .detail-grid, .review-grid, .order-grid { grid-template-columns: minmax(0, 1fr); }
  .purchase-panel { position: static; }
  .detail-image { max-height: 560px; }
  .review-preview { max-height: 480px; }
  .payment-panel { max-width: none; }
  .verify-grid { grid-template-columns: minmax(0, 1fr); }
  .verify-result .empty-state { min-height: 240px; }
  .license-options { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .license-options > legend, .license-options > .field-label { grid-column: 1 / -1; }
}
@media (max-width: 767px) {
  html { scroll-padding-top: 80px; }
  .app-header { height: auto; min-height: 64px; }
  .header-inner { min-height: 64px; flex-wrap: wrap; gap: 0 8px; padding: 0 16px; }
  .brand { gap: 8px; }
  .brand-name { font-size: 16px; }
  .brand-mark { width: 28px; height: 28px; font-size: 16px; }
  .menu-toggle { display: inline-flex !important; }
  .header-actions { gap: 4px; }
  .header-actions .btn { padding-inline: 10px; font-size: 12px; }
  .header-actions .avatar { display: none; }
  .header-actions .btn-text { padding-inline: 8px; }
  .top-nav { display: none; order: 5; width: 100%; padding: 8px 0 12px; border-top: 1px solid var(--color-border); }
  .app-header.is-open .top-nav, .header-inner.is-open .top-nav, .top-nav.is-open { display: flex; }
  .top-nav .nav-link { flex: 1; }
  .market-container { width: calc(100% - 32px); padding: 24px 0 32px; }
  .workspace-shell, .workspace-shell.is-collapsed { display: block; min-height: calc(100vh - 64px - 96px); }
  .sidebar { display: none; border-right: 0; border-bottom: 1px solid var(--color-border); padding: 12px 16px; }
  .workspace-shell.is-open .sidebar { display: flex; }
  .side-link, .workspace-shell.is-collapsed .side-link { justify-content: flex-start; padding: 10px 12px; }
  .side-label, .sidebar-label, .workspace-shell.is-collapsed .side-label, .workspace-shell.is-collapsed .sidebar-label { display: block; }
  .sidebar-label { padding-top: 0; }
  .sidebar-foot { padding-top: 12px; margin-top: 12px; border-top: 1px solid var(--color-border); }
  .sidebar-foot > .fine { display: none; }
  .workspace-main { padding: 24px 16px 32px; }
  .page-head { gap: 16px; margin-bottom: 24px; }
  .page-title { font-size: 28px; line-height: 38px; }
  .page-description { font-size: 14px; line-height: 22px; }
  .page-actions { padding: 0; }
  .panel { padding: 20px; }
  .panel-head { margin-bottom: 20px; }
  .market-toolbar { gap: 12px; padding: 16px; }
  .market-toolbar > .field:first-child { flex-basis: 100%; }
  .market-toolbar > .field { flex: 1 1 140px; }
  .market-toolbar .toolbar-actions { flex-shrink: 0; }
  .gallery-grid { gap: 16px; }
  .detail-grid { gap: 24px; }
  .purchase-panel .page-title { font-size: 28px; line-height: 38px; }
  .form-grid, .account-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .form-grid > .span-2, .form-grid > .full-width { grid-column: auto; }
  .steps { gap: 8px; margin-bottom: 24px; }
  .step { gap: 6px; font-size: 12px; line-height: 18px; }
  .step:not(:last-child)::after { margin-left: 0; min-width: 8px; }
  .step-number { width: 24px; height: 24px; }
  .upload-zone { min-height: 240px; padding: 24px 16px; }
  .selected-file { gap: 12px; padding: 12px; }
  .file-thumb { width: 56px; height: 48px; }
  .form-actions { gap: 8px; }
  .form-actions .btn { flex: 1; }
  .form-actions > .btn:first-child:not(:last-child) { margin-right: 0; }
  .license-certificate { padding: 24px; }
  .account-grid > .panel { margin: 0; }
  .login-container { padding: 32px 16px; }
  .footer-inner { padding: 16px; min-height: 88px; }
  .prototype-label { gap: 4px 8px; }
  .footer-tools { margin-left: auto; }
  dialog { width: calc(100% - 32px); max-height: calc(100dvh - 32px); }
  .dialog-header { padding: 16px 20px; }
  .dialog-body { padding: 20px; }
  .dialog-footer { padding: 16px 20px; }
  .preview-dialog, .scenario-panel { width: calc(100% - 32px); }
  .preview-image { max-height: calc(100dvh - 200px); }
}
@media (max-width: 639px) {
  .gallery-grid { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .work-content { padding: 16px 20px; }
  .work-bottom { margin-top: 12px; }
  .work-title { font-size: 18px; line-height: 26px; }
  .work-price { font-size: 24px; line-height: 32px; }
  .license-options { grid-template-columns: minmax(0, 1fr); }
  .image-caption { flex-wrap: wrap; }
  .panel { padding: 16px; }
  .info-list { grid-template-columns: 88px minmax(0, 1fr); gap: 12px; }
  .page-actions { width: 100%; }
  .page-actions .btn-primary { width: 100%; }
  .market-toolbar > .field { flex: 1 1 100%; }
  .market-toolbar .toolbar-actions { width: 100%; }
  .market-toolbar .toolbar-actions .btn { flex: 1; }
  .result-summary { align-items: flex-start; font-size: 12px; line-height: 18px; }
  .breadcrumb { margin-bottom: 16px; }
  .order-cover { width: 96px; height: 72px; }
  .order-summary > .table-work { align-items: flex-start; }
  .order-summary > .table-work strong { font-size: 14px; line-height: 22px; }
  .certificate-heading { gap: 12px; }
  .license-certificate { padding: 20px 16px; }
  .filter-tabs { gap: 4px; }
  .filter-tab { padding: 8px 10px; }
  .empty-state { min-height: 300px; padding: 40px 20px; }
  .status-banner { padding: 12px; gap: 8px; }
  .dialog-footer .btn { flex: 1; }
  .footer-tools { margin-left: 0; }
  .footer-inner { gap: 8px; }
  .pagination { gap: 6px; }
  .pagination .fine { width: 100%; text-align: center; margin-top: 8px; }
}
@media (max-width: 374px) {
  .header-inner { padding-inline: 12px; gap: 4px; }
  .brand-name { font-size: 14px; }
  .brand-mark { width: 26px; height: 26px; }
  .header-actions .btn { padding-inline: 8px; }
  .header-actions .icon { display: none; }
  .market-container { width: calc(100% - 24px); }
  .workspace-main { padding-inline: 12px; }
  .step { flex-direction: column; align-items: flex-start; gap: 4px; }
  .step:not(:last-child)::after { display: none; }
  .info-list { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .info-list dd { margin-bottom: 12px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  .image-button:hover .work-image, .btn:active:not(:disabled) { transform: none; }
  .page-enter, dialog[open] { animation: none; }
}