:root {
    --zc-blue-950: #0b1f46;
    --zc-blue-900: #102a5c;
    --zc-blue-800: #173b7a;
    --zc-blue-700: #1d4ed8;
    --zc-blue-600: #2563eb;
    --zc-blue-100: #dbeafe;
    --zc-blue-50: #eff6ff;
    --zc-bg: #f4f7fb;
    --zc-card: #ffffff;
    --zc-text: #172033;
    --zc-muted: #65718a;
    --zc-border: #dbe3ef;
    --zc-green: #15803d;
    --zc-green-bg: #dcfce7;
    --zc-amber: #a16207;
    --zc-amber-bg: #fef3c7;
    --zc-red: #b91c1c;
    --zc-red-bg: #fee2e2;
    --zc-radius: 16px;
    --zc-shadow: 0 14px 40px rgba(15, 39, 84, 0.08);
}

* { box-sizing: border-box; }
html { min-height: 100%; }
body { margin: 0; min-height: 100vh; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; color: var(--zc-text); background: var(--zc-bg); }
a { color: inherit; }
button, input { font: inherit; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; font-size: 0.9em; }

.zc-admin-shell { min-height: 100vh; display: grid; grid-template-columns: 270px minmax(0, 1fr); }
.zc-admin-sidebar { position: sticky; top: 0; height: 100vh; padding: 24px 18px; display: flex; flex-direction: column; background: linear-gradient(180deg, var(--zc-blue-950), var(--zc-blue-900)); color: #fff; }
.zc-admin-brand { display: flex; align-items: center; gap: 12px; padding: 4px 6px 24px; text-decoration: none; }
.zc-admin-brand-mark { width: 42px; height: 42px; border-radius: 13px; display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto; font-weight: 800; letter-spacing: .04em; background: #fff; color: var(--zc-blue-800); box-shadow: 0 8px 22px rgba(0, 0, 0, .18); }
.zc-admin-brand strong, .zc-admin-login-brand strong { display: block; font-size: 1.02rem; letter-spacing: .01em; }
.zc-admin-brand small, .zc-admin-login-brand small { display: block; margin-top: 2px; color: #bfd2ff; font-size: .78rem; }
.zc-admin-nav { display: grid; gap: 6px; }
.zc-admin-nav a { padding: 11px 13px; border-radius: 11px; text-decoration: none; color: #dbe7ff; font-weight: 650; }
.zc-admin-nav a:hover, .zc-admin-nav a:focus-visible { background: rgba(255,255,255,.08); color: #fff; outline: none; }
.zc-admin-nav a.is-active { background: rgba(255,255,255,.14); color: #fff; box-shadow: inset 3px 0 0 #74a6ff; }
.zc-admin-sidebar-footer { margin-top: auto; display: grid; gap: 12px; padding: 18px 6px 4px; border-top: 1px solid rgba(255,255,255,.12); }
.zc-admin-sidebar-footer > a { color: #dbe7ff; text-decoration: none; font-size: .88rem; }
.zc-admin-sidebar-footer small { color: #91a9d5; line-height: 1.5; }
.zc-admin-logout { width: 100%; border: 1px solid rgba(255,255,255,.22); border-radius: 10px; padding: 9px 12px; background: transparent; color: #fff; cursor: pointer; }
.zc-admin-logout:hover { background: rgba(255,255,255,.08); }

.zc-admin-main { min-width: 0; padding: 32px; }
.zc-admin-topbar { display: flex; align-items: flex-start; justify-content: space-between; gap: 24px; margin-bottom: 26px; }
.zc-admin-topbar h1 { margin: 4px 0 6px; font-size: clamp(1.8rem, 2.4vw, 2.5rem); line-height: 1.1; color: var(--zc-blue-950); }
.zc-admin-topbar p { margin: 0; max-width: 760px; color: var(--zc-muted); line-height: 1.55; }
.zc-admin-eyebrow { display: block; color: var(--zc-blue-600); font-size: .76rem; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; }
.zc-admin-actions { display: flex; flex-wrap: wrap; gap: 9px; justify-content: flex-end; }
.zc-admin-back { display: inline-block; margin-bottom: 8px; color: var(--zc-blue-700); text-decoration: none; font-weight: 700; }

.zc-admin-btn, .zc-admin-btn-secondary { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 10px 15px; border-radius: 11px; text-decoration: none; font-weight: 750; border: 1px solid transparent; cursor: pointer; }
.zc-admin-btn { background: var(--zc-blue-700); color: #fff; box-shadow: 0 8px 20px rgba(29, 78, 216, .18); }
.zc-admin-btn:hover { background: var(--zc-blue-800); }
.zc-admin-btn-secondary { background: #fff; color: var(--zc-blue-800); border-color: var(--zc-border); }
.zc-admin-btn-secondary:hover { border-color: #a9bce0; background: var(--zc-blue-50); }
.zc-admin-link { color: var(--zc-blue-700); font-weight: 700; text-decoration: none; }
.zc-admin-link:hover { text-decoration: underline; }
.zc-admin-muted { color: var(--zc-muted); }

.zc-admin-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 22px; }
.zc-admin-card { background: var(--zc-card); border: 1px solid var(--zc-border); border-radius: var(--zc-radius); box-shadow: var(--zc-shadow); padding: 22px; }
.zc-admin-stat { position: relative; overflow: hidden; min-height: 116px; display: flex; flex-direction: column; justify-content: space-between; }
.zc-admin-stat::before { content: ""; position: absolute; inset: 0 auto 0 0; width: 4px; background: var(--zc-blue-600); }
.zc-admin-stat span { color: var(--zc-muted); font-size: .88rem; font-weight: 650; }
.zc-admin-stat strong { margin-top: 10px; font-size: 2rem; color: var(--zc-blue-950); }
.zc-admin-card-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; margin-bottom: 18px; }
.zc-admin-card-head h2 { margin: 0 0 4px; color: var(--zc-blue-950); font-size: 1.15rem; }
.zc-admin-card-head p { margin: 0; color: var(--zc-muted); line-height: 1.5; }
.zc-admin-grid-2 { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; margin-bottom: 18px; }

.zc-admin-table-wrap { width: 100%; overflow-x: auto; }
.zc-admin-table { width: 100%; border-collapse: collapse; min-width: 820px; }
.zc-admin-table th { padding: 10px 12px; border-bottom: 1px solid var(--zc-border); text-align: left; color: var(--zc-muted); font-size: .77rem; letter-spacing: .04em; text-transform: uppercase; }
.zc-admin-table td { padding: 14px 12px; border-bottom: 1px solid #edf1f6; vertical-align: middle; }
.zc-admin-table tbody tr:last-child td { border-bottom: 0; }
.zc-admin-table tbody tr:hover { background: #f8fbff; }
.zc-admin-table td strong, .zc-admin-table td small { display: block; }
.zc-admin-table td small { margin-top: 3px; color: var(--zc-muted); }

.zc-admin-status { display: inline-flex; align-items: center; gap: 6px; border-radius: 999px; padding: 5px 9px; font-size: .76rem; font-weight: 800; white-space: nowrap; background: #eef2f7; color: #526174; }
.zc-admin-status::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.zc-admin-status.is-online { background: var(--zc-green-bg); color: var(--zc-green); }
.zc-admin-status.is-stale { background: var(--zc-amber-bg); color: var(--zc-amber); }
.zc-admin-status.is-neutral { background: #eef2f7; color: #526174; }
.zc-admin-status.is-inactive { background: var(--zc-red-bg); color: var(--zc-red); }
.zc-admin-chip-row { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.zc-admin-chip { display: inline-flex; margin: 2px 4px 2px 0; padding: 4px 8px; border-radius: 999px; background: var(--zc-blue-50); color: var(--zc-blue-800); border: 1px solid var(--zc-blue-100); font-size: .78rem; font-weight: 750; }

.zc-admin-definition-list { margin: 0; display: grid; gap: 0; }
.zc-admin-definition-list > div { display: grid; grid-template-columns: minmax(120px, 40%) minmax(0, 1fr); gap: 18px; padding: 11px 0; border-bottom: 1px solid #edf1f6; }
.zc-admin-definition-list > div:last-child { border-bottom: 0; }
.zc-admin-definition-list dt { color: var(--zc-muted); font-weight: 650; }
.zc-admin-definition-list dd { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.zc-admin-section-block { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--zc-border); }

.zc-admin-provider-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.zc-admin-provider { padding: 16px; border: 1px solid var(--zc-border); border-radius: 13px; background: #fbfdff; }
.zc-admin-provider > div:first-child { margin-bottom: 10px; }
.zc-admin-provider-statuses { display: flex; flex-wrap: wrap; gap: 7px; }
.zc-admin-provider strong, .zc-admin-provider small { display: block; }
.zc-admin-provider small { margin-top: 3px; color: var(--zc-muted); }
.zc-admin-provider p { margin: 12px 0 0; color: var(--zc-muted); font-size: .86rem; line-height: 1.5; }
.zc-admin-empty { text-align: center; padding: 34px 22px; color: var(--zc-muted); }
.zc-admin-empty strong, .zc-admin-empty h1 { color: var(--zc-blue-950); }
.zc-admin-empty-compact { padding: 18px 8px; text-align: left; }
.zc-admin-empty p { margin: 8px auto 18px; max-width: 620px; line-height: 1.55; }

.zc-admin-login-body { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top left, #dbeafe, transparent 35%), linear-gradient(145deg, #edf4ff, #f8fafc 50%, #eaf1fb); }
.zc-admin-login-card { width: min(440px, 100%); padding: 30px; background: #fff; border: 1px solid var(--zc-border); border-radius: 20px; box-shadow: 0 24px 70px rgba(15, 39, 84, .15); }
.zc-admin-login-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 25px; }
.zc-admin-login-brand .zc-admin-brand-mark { background: var(--zc-blue-800); color: #fff; }
.zc-admin-login-brand small { color: var(--zc-muted); }
.zc-admin-login-card h1 { margin: 0 0 6px; color: var(--zc-blue-950); }
.zc-admin-login-card > p { margin: 0 0 22px; color: var(--zc-muted); line-height: 1.5; }
.zc-admin-login-form { display: grid; gap: 14px; }
.zc-admin-login-form label { display: grid; gap: 6px; font-size: .86rem; font-weight: 700; color: #42506a; }
.zc-admin-login-form input { width: 100%; padding: 11px 12px; border: 1px solid #cdd7e5; border-radius: 10px; color: var(--zc-text); background: #fff; }
.zc-admin-login-form input:focus { border-color: var(--zc-blue-600); outline: 3px solid rgba(37,99,235,.12); }
.zc-admin-alert { margin-bottom: 14px; padding: 10px 12px; border-radius: 10px; font-size: .88rem; }
.zc-admin-alert.is-error { background: var(--zc-red-bg); color: var(--zc-red); }
.zc-admin-alert.is-success { background: var(--zc-green-bg); color: var(--zc-green); }

.zc-admin-dependency-error { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 18px; border-color: #f3c8c8; box-shadow: 0 14px 40px rgba(185, 28, 28, .08); }
.zc-admin-dependency-error-icon { width: 52px; height: 52px; border-radius: 16px; display: inline-flex; align-items: center; justify-content: center; background: var(--zc-red-bg); color: var(--zc-red); font-size: 1.6rem; font-weight: 900; }
.zc-admin-dependency-error h2 { margin: 1px 0 7px; color: var(--zc-blue-950); font-size: 1.2rem; }
.zc-admin-dependency-error p { margin: 0 0 15px; line-height: 1.6; }
.zc-admin-dependency-meta { display: grid; gap: 6px; margin: 18px 0; padding: 14px 16px; border: 1px solid var(--zc-border); border-radius: 12px; background: #f8fbff; }
.zc-admin-dependency-meta span { color: var(--zc-muted); font-size: .78rem; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }
.zc-admin-dependency-meta code { overflow-wrap: anywhere; color: var(--zc-blue-900); font-weight: 700; }
.zc-admin-dependency-help { margin: 20px 0; padding: 16px 18px; border-radius: 12px; background: var(--zc-blue-50); border: 1px solid var(--zc-blue-100); }
.zc-admin-dependency-help strong { color: var(--zc-blue-950); }
.zc-admin-dependency-help ul { margin: 10px 0 0; padding-left: 20px; color: var(--zc-muted); line-height: 1.65; }

@media (max-width: 1180px) {
    .zc-admin-stats { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .zc-admin-provider-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 860px) {
    .zc-admin-shell { grid-template-columns: 1fr; }
    .zc-admin-sidebar { position: static; height: auto; padding: 16px; }
    .zc-admin-brand { padding-bottom: 14px; }
    .zc-admin-nav { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zc-admin-nav a { text-align: center; }
    .zc-admin-sidebar-footer { margin-top: 16px; grid-template-columns: 1fr 1fr; align-items: center; }
    .zc-admin-sidebar-footer small { grid-column: 1 / -1; }
    .zc-admin-main { padding: 22px 16px; }
    .zc-admin-topbar { flex-direction: column; }
    .zc-admin-actions { justify-content: flex-start; }
    .zc-admin-grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .zc-admin-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .zc-admin-provider-grid { grid-template-columns: 1fr; }
    .zc-admin-definition-list > div { grid-template-columns: 1fr; gap: 4px; }
    .zc-admin-sidebar-footer { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .zc-admin-dependency-error { grid-template-columns: 1fr; }
}

/* Produktspezifisches zekacommerce-SaaS-Billing */
.zc-admin-section-gap { margin-top: 18px; }
.zc-admin-actions-left { justify-content: flex-start; }
.zc-admin-list-stack { display: grid; gap: 10px; }
.zc-admin-list-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 14px 16px; border: 1px solid var(--zc-border); border-radius: 12px; background: #fbfdff; }
.zc-admin-list-row strong, .zc-admin-list-row small { display: block; }
.zc-admin-list-row small { margin-top: 3px; color: var(--zc-muted); }
.zc-admin-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.zc-admin-form-grid label { display: grid; gap: 7px; color: #42506a; font-size: .86rem; font-weight: 700; }
.zc-admin-form-grid input, .zc-admin-form-grid select, .zc-admin-form-grid textarea { width: 100%; padding: 11px 12px; border: 1px solid #cdd7e5; border-radius: 10px; color: var(--zc-text); background: #fff; font: inherit; }
.zc-admin-form-grid textarea { min-height: 94px; resize: vertical; }
.zc-admin-form-grid input:focus, .zc-admin-form-grid select:focus, .zc-admin-form-grid textarea:focus { border-color: var(--zc-blue-600); outline: 3px solid rgba(37,99,235,.12); }
.zc-admin-field-wide { grid-column: 1 / -1; }
.zc-admin-field-error { color: var(--zc-red); font-size: .78rem; font-weight: 650; }
.zc-admin-form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; padding-top: 4px; }
.zc-admin-lifecycle-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.zc-admin-lifecycle-grid > div { padding: 16px; border: 1px solid var(--zc-border); border-radius: 13px; background: #fbfdff; }
.zc-admin-lifecycle-grid strong { display: block; margin-bottom: 5px; color: var(--zc-blue-950); font-size: 1.1rem; }
.zc-admin-lifecycle-grid span { color: var(--zc-muted); font-size: .86rem; line-height: 1.5; }
.zc-admin-billing-note { margin: 16px 0 0; padding: 13px 15px; border-radius: 11px; border: 1px solid var(--zc-blue-100); background: var(--zc-blue-50); color: var(--zc-blue-900); line-height: 1.55; }

@media (max-width: 860px) {
    .zc-admin-form-grid { grid-template-columns: 1fr; }
    .zc-admin-field-wide, .zc-admin-form-actions { grid-column: auto; }
    .zc-admin-lifecycle-grid { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
    .zc-admin-list-row { align-items: flex-start; flex-direction: column; }
}