:root {
  color-scheme: light;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  --ink: #19172b;
  --muted: #66627a;
  --surface: #ffffff;
  --canvas: #f6f5fb;
  --border: #d8d5e5;
  --brand-primary: #3d2bff;
  --danger: #a42132;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--canvas); line-height: 1.55; }
a { color: var(--brand-primary); text-underline-offset: .18em; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible, [tabindex]:focus-visible { outline: 3px solid #ffb300; outline-offset: 3px; }
.skip-link { position: fixed; inset-inline-start: .75rem; top: -5rem; z-index: 100; padding: .75rem 1rem; color: #fff; background: #111; }
.skip-link:focus { top: .75rem; }
.site-header, .admin-header { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 1rem clamp(1rem, 4vw, 4rem); background: var(--surface); border-block-end: 1px solid var(--border); }
.brand { color: var(--ink); font-size: 1.3rem; font-weight: 800; text-decoration: none; letter-spacing: .04em; }
nav { display: flex; gap: 1rem; flex-wrap: wrap; align-items: center; }
nav a { color: var(--ink); }
main { width: min(1200px, calc(100% - 2rem)); margin: 0 auto; padding-block: 2rem 4rem; }
footer { padding: 2rem clamp(1rem, 4vw, 4rem); border-block-start: 1px solid var(--border); color: var(--muted); background: var(--surface); }
.hero { padding: clamp(2rem, 8vw, 7rem) 0; max-width: 850px; }
.hero h1 { max-width: 18ch; margin-block: .25rem 1rem; font-size: clamp(2.25rem, 7vw, 5.25rem); line-height: .98; letter-spacing: -.045em; }
.hero p { max-width: 65ch; font-size: 1.08rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .12em; color: var(--brand-primary); font-weight: 800; font-size: .8rem; }
.button, button { display: inline-flex; align-items: center; justify-content: center; min-height: 2.75rem; padding: .6rem 1rem; border: 1px solid transparent; border-radius: .55rem; color: #fff; background: var(--brand-primary); font: inherit; font-weight: 700; cursor: pointer; text-decoration: none; }
.button.secondary, button.secondary { color: var(--ink); background: var(--surface); border-color: var(--border); }
button.danger { background: var(--danger); }
.actions { display: flex; gap: .75rem; align-items: center; flex-wrap: wrap; margin-block: 1.5rem; }
.inline-form { display: inline; }
.link-button { min-height: auto; padding: 0; color: var(--ink); background: transparent; text-decoration: underline; font-weight: 400; }
.listing-panel, .form-card, .preview-card, article { padding: clamp(1rem, 3vw, 2rem); background: var(--surface); border: 1px solid var(--border); border-radius: 1rem; box-shadow: 0 12px 35px rgba(39, 30, 90, .06); }
.filters { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: .75rem; align-items: end; margin-block: 1rem; }
label { display: grid; gap: .35rem; font-weight: 650; }
input, select, textarea { width: 100%; min-height: 2.75rem; padding: .55rem .65rem; color: var(--ink); background: #fff; border: 1px solid #aaa5bb; border-radius: .45rem; font: inherit; }
.checkbox-label { display: flex; align-items: center; gap: .5rem; }
.checkbox-label input { width: auto; min-height: auto; }
.dashboard-grid article form { display: grid; gap: .75rem; margin-block: 1rem; }
.one-time-secret { overflow-wrap: anywhere; user-select: all; }
textarea { min-height: 8rem; resize: vertical; }
fieldset { margin-block: 1rem; border: 1px solid var(--border); border-radius: .6rem; }
fieldset label { display: flex; align-items: center; gap: .5rem; }
fieldset input { width: auto; min-height: auto; }
.table-scroll { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: .85rem .65rem; border-block-end: 1px solid var(--border); text-align: start; vertical-align: middle; }
th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); }
.avatar { display: inline-grid; width: 2.25rem; height: 2.25rem; place-items: center; margin-inline-end: .5rem; border-radius: 45% 55% 58% 42%; color: #38334f; background: linear-gradient(135deg, #eceaff, #e3f8ed); filter: grayscale(.35); }
.avatar-large { width: 5rem; height: 5rem; font-size: 1.5rem; }
.status { display: inline-flex; padding: .18rem .5rem; border: 1px solid currentColor; border-radius: 999px; font-size: .82rem; font-weight: 750; }
.status[data-status="active"], .status[data-status="approved"], .status[data-status="completed"] { color: #12663e; }
.status[data-status="payment_failed"], .status[data-status="failed"], .status[data-status="rejected"], .status[data-status="suspended"], .status[data-status="revoked"] { color: var(--danger); }
.status[data-status="pending"], .status[data-status="pending_payment"], .status[data-status="past_due"], .status[data-status="grace_period"], .status[data-status="scheduled"], .status[data-status="paused"] { color: #895600; }
.empty-state { padding: 2rem; color: var(--muted); border: 1px dashed var(--border); border-radius: .6rem; }
.alert { padding: .75rem 1rem; border-inline-start: .3rem solid; border-radius: .4rem; }
.alert.error { color: #741724; background: #fff0f2; border-color: var(--danger); }
.dashboard-grid, .card-grid, .metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.preview-card, .form-card { max-width: 760px; margin-inline: auto; }
.preview-card dl, .form-card dl { display: grid; grid-template-columns: minmax(8rem, 1fr) 2fr; gap: .65rem 1rem; }
dt { color: var(--muted); font-weight: 700; }
dd { margin: 0; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.admin-layout { display: grid; grid-template-columns: minmax(230px, 18rem) 1fr; min-height: calc(100vh - 4rem); }
.admin-layout > nav { align-content: start; display: block; padding: 1rem; background: #201b3c; }
.admin-layout > nav ul { display: grid; gap: .2rem; padding: 0; list-style: none; }
.admin-layout > nav a { display: block; padding: .55rem .7rem; border-radius: .4rem; color: #fff; text-decoration: none; }
.admin-layout > nav a[aria-current="page"] { background: var(--brand-primary); }
.admin-layout main { width: min(1100px, calc(100% - 2rem)); }
.pagination { justify-content: center; margin-block: 1.5rem; }

@media (max-width: 760px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .admin-layout { grid-template-columns: 1fr; }
  .admin-layout > nav ul { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
}

@media (prefers-reduced-motion: no-preference) {
  a, button { transition: filter .15s ease, transform .15s ease; }
  .button:hover, button:hover { filter: brightness(.92); }
}