:root {
  color-scheme: light dark;
  --bg: #f7f7fb;
  --surface: #ffffff;
  --surface-2: #f0eef9;
  --text: #231f2b;
  --muted: #625c69;
  --primary: #7c3aed;
  --primary-hover: #6d28d9;
  --on-primary: #ffffff;
  --border: #ded9e7;
  --danger: #b42318;
  --danger-bg: #fff1f0;
  --warning: #7a4b00;
  --warning-bg: #fff7e6;
  --ring: #8b5cf6;
  --radius: 16px;
  font-family: "Segoe UI", "Noto Sans SC", system-ui, sans-serif;
}
* { box-sizing: border-box; }
html { min-width: 320px; background: var(--bg); }
body { margin: 0; min-height: 100dvh; background: var(--bg); color: var(--text); line-height: 1.6; }
a { color: var(--primary); }
.skip-link { position: absolute; left: 16px; top: -64px; z-index: 10; padding: 12px 16px; background: var(--surface); }
.skip-link:focus { top: 16px; }
.topbar { min-height: 72px; padding: 12px max(20px, calc((100% - 1120px) / 2)); display: flex; align-items: center; justify-content: space-between; gap: 16px; border-bottom: 1px solid var(--border); background: color-mix(in srgb, var(--surface) 94%, transparent); }
.brand { font-size: 20px; font-weight: 750; margin-right: 12px; }
.muted, .helper { color: var(--muted); }
.page { width: min(1160px, calc(100% - 40px)); margin: 0 auto; padding: 36px 0 72px; }
.intro { max-width: 760px; margin-bottom: 24px; }
.eyebrow { margin: 0 0 8px; color: var(--primary); font-size: 12px; font-weight: 750; letter-spacing: .12em; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 12px; font-size: clamp(32px, 6vw, 52px); line-height: 1.15; letter-spacing: -.03em; }
h2 { margin-bottom: 0; font-size: 22px; }
h3 { margin: 0 0 12px; font-size: 18px; }
.lede { color: var(--muted); font-size: 17px; max-width: 68ch; }
.card-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.span-full { grid-column: 1 / -1; }
.subscription-layout { display: grid; gap: 20px; }
.panel { padding: 24px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface); box-shadow: 0 12px 36px rgba(30, 20, 45, .06); }
.section-heading { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 20px; }
.compact-heading { margin-bottom: 16px; }
.compact-heading .eyebrow { margin-bottom: 4px; }
.badge { display: inline-flex; align-items: center; min-height: 28px; padding: 2px 10px; border: 1px solid var(--border); border-radius: 999px; color: var(--muted); font-size: 13px; }
.metric { display: flex; flex-direction: column; margin-bottom: 16px; }
.metric span { color: var(--muted); font-size: 14px; }
.metric strong { font-size: 32px; font-variant-numeric: tabular-nums; line-height: 1.25; }
.progress { height: 10px; overflow: hidden; margin-bottom: 24px; border-radius: 999px; background: var(--surface-2); }
.progress span { display: block; height: 100%; border-radius: inherit; background: var(--primary); }
.data-list { margin: 0; }
.data-list div { display: flex; justify-content: space-between; gap: 24px; padding: 12px 0; border-top: 1px solid var(--border); }
.data-list dt { color: var(--muted); }
.data-list dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.button-link, button { min-height: 46px; border: 0; border-radius: 10px; padding: 11px 18px; background: var(--primary); color: var(--on-primary); font: inherit; font-weight: 700; cursor: pointer; transition: background-color 180ms ease, box-shadow 180ms ease; touch-action: manipulation; }
.button-link { display: inline-flex; align-items: center; justify-content: center; margin-top: 0; text-decoration: none; }
.inline-actions .button-link { margin-top: 0; }
.download-list { display: grid; gap: 10px; margin: 20px 0 0; padding: 0; list-style: none; }
.download-item { display: grid; gap: 6px; padding: 12px 0; border-top: 1px solid var(--border); }
.download-item label { font-weight: 650; }
.copy-row { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; align-items: center; }
.copy-row input, #subscription-link { width: 100%; min-height: 46px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); font: inherit; }
.primary-subscriptions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.subscription-card { display: grid; grid-template-rows: auto 1fr; gap: 16px; padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.subscription-card strong { display: block; margin-bottom: 4px; font-size: 18px; }
.subscription-card p { margin: 0; color: var(--muted); }
.primary-copy-row { grid-template-columns: minmax(0, 1fr) auto; }
.advanced-formats, .settings-disclosure { margin-top: 24px; }
.advanced-formats summary, .settings-disclosure summary { min-height: 44px; display: flex; align-items: center; cursor: pointer; color: var(--text); font-weight: 700; }
.quota-form input { width: 140px; }
.download-link { display: flex; align-items: center; min-height: 46px; padding: 10px 14px; border: 1px solid var(--border); border-radius: 10px; background: var(--surface-2); color: var(--text); font-weight: 650; text-decoration: none; touch-action: manipulation; }
.download-link:hover { border-color: var(--primary); color: var(--primary); }
button:hover, .button-link:hover { background: var(--primary-hover); }
button:focus-visible, .button-link:focus-visible, .download-link:focus-visible, input:focus-visible, a:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; }
button.secondary { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
button.danger { background: var(--danger); color: white; }
button.compact, .button-link.compact { min-height: 44px; padding: 8px 12px; font-size: 13px; }
.secondary-link { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.action-stack { margin-top: 16px; }
.settings-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.settings-grid > form { padding: 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.settings-grid > .helper { grid-column: 1 / -1; margin: 0; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.notice { margin-bottom: 24px; padding: 14px 16px; border: 1px solid; border-radius: 12px; }
.notice.success { color: #17643b; background: #eaf8f0; border-color: #9ed7b5; }
.notice.error { color: var(--danger); background: var(--danger-bg); border-color: color-mix(in srgb, var(--danger) 35%, transparent); }
.notice.warning { color: var(--warning); background: var(--warning-bg); border-color: color-mix(in srgb, var(--warning) 35%, transparent); }
.access-panel, .alert-panel, .service-panel { margin-bottom: 20px; }
.admin-shortcuts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px; margin-top: 20px; }
.admin-shortcuts .button-link { margin-top: 0; }
.alert-list { display: grid; gap: 12px; margin-bottom: 20px; }
.alert-item { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface-2); }
.alert-item p { margin: 4px 0; }
.alert-item small { color: var(--muted); }
.auth-page { display: grid; place-items: center; padding: 24px; }
.auth-shell { width: min(100%, 460px); }
.wide-shell { width: min(100%, 700px); }
.auth-panel { padding: clamp(28px, 7vw, 48px); }
.auth-panel > label { display: block; margin: 18px 0 6px; font-weight: 650; }
.auth-panel > input { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); font: inherit; font-size: 16px; }
.stack { display: grid; gap: 12px; }
.stack label { margin-top: 8px; font-weight: 650; }
.stack input { width: 100%; min-height: 48px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); font: inherit; font-size: 16px; }
.stack button { margin-top: 8px; }
.table-wrap { overflow-x: auto; }
.nested-section { margin-top: 24px; padding-top: 20px; border-top: 1px solid var(--border); }
.token-form { margin-top: 20px; }
.account-panel { margin-top: 20px; }
.account-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.account-card { padding: 20px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.managed-user-list { display: grid; gap: 16px; }
.managed-user-card { overflow: hidden; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.managed-user-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 18px 20px; border-bottom: 1px solid var(--border); }
.managed-user-header h3 { margin: 0; font-size: 20px; }
.managed-user-header p { margin: 2px 0 0; color: var(--muted); font-size: 14px; }
.managed-user-metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin: 0; border-bottom: 1px solid var(--border); }
.managed-user-metrics div { min-width: 0; padding: 16px 20px; border-right: 1px solid var(--border); }
.managed-user-metrics div:last-child { border-right: 0; }
.managed-user-metrics dt { color: var(--muted); font-size: 13px; }
.managed-user-metrics dd { margin: 4px 0 0; font-size: 17px; font-weight: 750; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.managed-user-actions { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; padding: 0 20px 20px; }
.action-group { min-width: 0; padding: 20px 0 0; }
.action-group:nth-child(odd) { padding-right: 20px; }
.action-group:nth-child(even) { padding-left: 20px; border-left: 1px solid var(--border); }
.managed-user-actions > .action-group:nth-child(n+3):not(.danger-zone) { margin-top: 20px; border-top: 1px solid var(--border); }
.managed-user-actions > .action-group:nth-child(3):not(.danger-zone) { grid-column: 1 / -1; padding-right: 0; }
.action-group h4 { margin: 0 0 10px; color: var(--muted); font-size: 13px; font-weight: 750; letter-spacing: .05em; text-transform: uppercase; }
.button-grid { display: grid; gap: 8px; }
.button-grid > form, .button-grid > form > button, .button-grid > .button-link, .button-grid > button { width: 100%; }
.primary-action-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.lifecycle-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.form-row { display: grid; grid-template-columns: auto minmax(120px, 1fr) auto; gap: 8px; align-items: center; }
.form-row label { color: var(--muted); font-size: 13px; font-weight: 650; }
.form-row input { min-width: 0; min-height: 44px; padding: 8px 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--bg); color: var(--text); font: inherit; }
.renew-form { margin-top: 10px; }
.danger-zone { grid-column: 1 / -1; margin-top: 20px; padding: 0; border-top: 1px solid var(--border); border-left: 0 !important; }
.danger-zone summary { min-height: 48px; display: flex; align-items: center; color: var(--danger); cursor: pointer; font-weight: 750; }
.danger-zone .helper { margin-bottom: 12px; }
.danger-action-grid { grid-template-columns: repeat(2, minmax(0, 220px)); }
.empty-state { color: var(--muted); padding: 12px 0; }
.quota-summary { margin-top: 18px; padding: 18px; border: 1px solid var(--border); border-radius: 14px; background: var(--surface-2); }
.quota-heading { margin-bottom: 10px; }
.quota-heading h3 { margin: 0; }
.quota-status { margin: 0; font-weight: 750; }
.quota-account-list { display: grid; gap: 12px; margin-top: 14px; }
.quota-account { padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); }
.quota-account-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px; }
.quota-account-header h4 { margin: 0; }
.quota-window-list { display: grid; gap: 8px; margin: 12px 0 0; padding: 0; list-style: none; }
.quota-window { display: grid; grid-template-columns: minmax(90px, .8fr) minmax(160px, 2fr); gap: 8px; padding-top: 8px; border-top: 1px solid var(--border); }
.quota-window strong { color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 14px 12px; border-bottom: 1px solid var(--border); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: 13px; }
@media (max-width: 760px) {
  .topbar { min-height: 64px; }
  .page { width: min(100% - 24px, 680px); padding: 28px 0 56px; }
  .card-grid { grid-template-columns: 1fr; }
  .account-grid { grid-template-columns: 1fr; }
  .panel { padding: 20px; }
  .section-heading { align-items: flex-start; margin-bottom: 16px; }
  .admin-shortcuts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .primary-subscriptions { grid-template-columns: 1fr; }
  .settings-grid { grid-template-columns: 1fr; }
  .data-list div { align-items: flex-start; flex-direction: column; gap: 2px; }
  .data-list dd { text-align: left; }
  .copy-row { grid-template-columns: 1fr 1fr; }
  .copy-row input { grid-column: 1 / -1; }
  .primary-copy-row { grid-template-columns: 1fr; }
  .primary-copy-row input { grid-column: auto; }
  .managed-user-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .managed-user-metrics div:nth-child(2) { border-right: 0; }
  .managed-user-metrics div:nth-child(-n+2) { border-bottom: 1px solid var(--border); }
  .managed-user-actions { grid-template-columns: 1fr; }
  .action-group:nth-child(odd), .action-group:nth-child(even) { padding-left: 0; padding-right: 0; border-left: 0; }
  .action-group + .action-group { border-top: 1px solid var(--border); }
  .primary-action-grid, .lifecycle-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .form-row input, .form-row button, .quota-form input { width: 100%; }
  .danger-action-grid { grid-template-columns: 1fr; }
  .quota-window { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; }
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141218;
    --surface: #1f1b24;
    --surface-2: #2b2631;
    --text: #f4eff8;
    --muted: #c5bdcc;
    --primary: #c4a7ff;
    --primary-hover: #d4c1ff;
    --on-primary: #21163a;
    --border: #443c4b;
    --danger: #ffb4ab;
    --danger-bg: #3a1715;
    --warning: #ffd8a8;
    --warning-bg: #33230d;
    --ring: #d7c4ff;
  }
}