:root {
    --blue-900: #00303f;
    --blue-800: #00465c;
    --blue-700: #005c7a;
    --blue-600: #00758f;
    --blue-500: #0084a8;
    --blue-400: #00a0dc;
    --blue-100: #e5f4f8;
    --blue-50: #f2fafc;
    --white: #ffffff;
    --gray-700: #33475b;
    --gray-500: #64748b;
    --gray-300: #cbd5e1;
    --red-600: #c62828;
    --red-50: #fdecea;
    --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
    --sans: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius: 2px;
    --shadow: 0 1px 2px rgba(0, 48, 63, 0.06), 0 8px 24px rgba(0, 48, 63, 0.07);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--sans);
    background-color: var(--white);
    background-image: radial-gradient(var(--blue-100) 1px, transparent 1px);
    background-size: 28px 28px;
    color: var(--gray-700);
    line-height: 1.5;
}

/* Eckklammern -- Reticle/HUD-Motiv fuer hervorgehobene Karten. Direkt an
   bestehende Klassen gehaengt, keine zusaetzlichen HTML-Klassen noetig. */
.bracket-corners,
.offer-card--featured,
.dash-card--credentials,
.stat-card,
.auth-card { position: relative; }

.bracket-corners::before, .bracket-corners::after,
.offer-card--featured::before, .offer-card--featured::after,
.dash-card--credentials::before, .dash-card--credentials::after,
.stat-card::before, .stat-card::after,
.auth-card::before, .auth-card::after {
    content: "";
    position: absolute;
    width: 12px;
    height: 12px;
    border-color: var(--blue-500);
    border-style: solid;
    border-width: 0;
    pointer-events: none;
}
.bracket-corners::before, .offer-card--featured::before, .dash-card--credentials::before,
.stat-card::before, .auth-card::before {
    top: -2px; left: -2px; border-top-width: 2px; border-left-width: 2px;
}
.bracket-corners::after, .offer-card--featured::after, .dash-card--credentials::after,
.stat-card::after, .auth-card::after {
    bottom: -2px; right: -2px; border-bottom-width: 2px; border-right-width: 2px;
}

/* Status-Pulse-Dot, z.B. fuer "aktiv"/"verbunden" */
.status-row { display: inline-flex; align-items: center; gap: 0.4rem; }
.status-line { margin: 0 0 1.25rem; font-size: 0.85rem; color: var(--gray-500); }
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #27c93f;
    box-shadow: 0 0 0 rgba(39, 201, 63, 0.6);
    animation: status-pulse 2s infinite;
    flex-shrink: 0;
}
@keyframes status-pulse {
    0% { box-shadow: 0 0 0 0 rgba(39, 201, 63, 0.5); }
    70% { box-shadow: 0 0 0 6px rgba(39, 201, 63, 0); }
    100% { box-shadow: 0 0 0 0 rgba(39, 201, 63, 0); }
}
.status-dot--warn { background: #e0a300; animation: status-pulse-warn 2s infinite; }
@keyframes status-pulse-warn {
    0% { box-shadow: 0 0 0 0 rgba(224, 163, 0, 0.5); }
    70% { box-shadow: 0 0 0 6px rgba(224, 163, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(224, 163, 0, 0); }
}

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 1.5rem; }

h1, h2, h3 { color: var(--blue-900); line-height: 1.2; margin-top: 0; letter-spacing: -0.01em; }

a { color: var(--blue-700); text-decoration: underline; }

code, .mono {
    font-family: var(--mono);
    font-size: 0.9em;
    font-variant-numeric: tabular-nums;
}

/* Header */
.site-header {
    background: var(--white);
    border-bottom: 1px solid var(--blue-100);
    position: sticky;
    top: 0;
    z-index: 10;
}

.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 1.5rem; }

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--blue-900);
    font-weight: 700;
    font-size: 1.2rem;
    text-decoration: none;
    letter-spacing: -0.01em;
}

.brand-logo { display: block; }

.main-nav { display: flex; align-items: center; flex-wrap: wrap; justify-content: center; gap: 0.75rem 0.75rem; }
.main-nav a:not(.btn) {
    text-decoration: none;
    color: var(--gray-700);
    font-weight: 600;
    font-size: 0.92rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.6rem;
    border-radius: var(--radius);
}
.main-nav a:not(.btn):hover { color: var(--blue-700); }
.main-nav i { color: var(--blue-500); font-size: 0.85em; }

/* Admin-Header */
.site-header--admin { border-bottom-color: var(--blue-600); border-bottom-width: 2px; }
.admin-badge {
    font-family: var(--mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--blue-900);
    color: var(--white);
    padding: 0.15rem 0.45rem;
    border-radius: var(--radius);
}
.main-nav a.is-active {
    color: var(--blue-800);
    background: var(--blue-50);
}
.main-nav a.is-active i { color: var(--blue-700); }

/* Buttons — bewusst eckig */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.3rem;
    border-radius: var(--radius);
    font-weight: 700;
    text-decoration: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 0.92rem;
    letter-spacing: 0.01em;
    transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-solid { background: var(--blue-700); color: var(--white); border-color: var(--blue-700); }
.btn-solid:hover { background: var(--blue-800); border-color: var(--blue-800); }
.btn-outline { background: var(--white); color: var(--blue-700); border-color: var(--blue-700); }
.btn-outline:hover { background: var(--blue-50); }
.btn-outline-invert { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.6); }
.btn-outline-invert:hover { background: rgba(255,255,255,0.12); border-color: var(--white); }
.btn-lg { padding: 0.85rem 1.8rem; font-size: 1rem; }
.btn-block { width: 100%; justify-content: center; }

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--gray-300);
    background: var(--white);
    color: var(--blue-700);
    border-radius: var(--radius);
    cursor: pointer;
    text-decoration: none;
}
.btn-icon:hover { border-color: var(--blue-600); background: var(--blue-50); }

/* Hero — technisches Blueprint-Grid */
.hero {
    background:
        linear-gradient(135deg, var(--blue-800), var(--blue-600)),
        repeating-linear-gradient(0deg, rgba(255,255,255,0.05) 0, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 32px),
        repeating-linear-gradient(90deg, rgba(255,255,255,0.05) 0, rgba(255,255,255,0.05) 1px, transparent 1px, transparent 32px);
    color: var(--white);
    padding: 5rem 0;
    position: relative;
    border-bottom: 3px solid var(--blue-400);
}
.hero-inner { text-align: center; }
.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 0.35rem 0.8rem;
    border-radius: var(--radius);
    margin-bottom: 1.5rem;
}
.hero-eyebrow::before { content: "// "; opacity: 0.55; }
.hero h1 { color: var(--white); font-size: 2.5rem; }
.hero p { max-width: 600px; margin: 1.25rem auto 2rem; color: var(--blue-100); font-size: 1.1rem; }
.hero-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* Features */
.features { padding: 4rem 0; }
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 2rem; }
.feature { border-left: 2px solid var(--blue-100); padding-left: 1.25rem; }
.feature i { color: var(--blue-500); font-size: 1.3rem; margin-bottom: 0.6rem; display: block; }
.feature h3 { color: var(--blue-700); font-size: 1.05rem; }
.feature p { color: var(--gray-500); margin-bottom: 0; }

/* Offers */
.offers { background: var(--blue-50); padding: 4.5rem 0 5rem; border-top: 1px solid var(--blue-100); border-bottom: 1px solid var(--blue-100); }
.offers-eyebrow { font-family: var(--mono); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--blue-600); text-align: center; display: block; margin-bottom: 0.5rem; }
.offers-eyebrow::before { content: "// "; opacity: 0.6; }
.offers h2 { text-align: center; }
.offers-sub { text-align: center; color: var(--gray-500); margin-bottom: 2.5rem; }
.offers-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.75rem; }

.offer-card {
    background: var(--white);
    border: 1px solid var(--blue-100);
    border-radius: var(--radius);
    padding: 2rem;
    box-shadow: var(--shadow);
    position: relative;
    display: flex;
    flex-direction: column;
}
.offer-card--featured { border: 2px solid var(--blue-600); }
.offer-badge {
    position: absolute;
    top: -1px;
    right: -1px;
    background: var(--blue-600);
    color: var(--white);
    font-family: var(--mono);
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.3rem 0.7rem;
    border-radius: 0 var(--radius) 0 var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.offer-card h3 { display: flex; align-items: center; gap: 0.5rem; }
.offer-card h3 i { color: var(--blue-500); font-size: 0.9em; }
.offer-tagline { color: var(--gray-500); min-height: 2.5em; }
.offer-price { font-family: var(--mono); font-size: 2rem; font-weight: 700; color: var(--blue-800); margin: 0.5rem 0 1.25rem; }
.offer-price span { font-size: 0.9rem; font-weight: 400; color: var(--gray-500); font-family: var(--sans); }
.offer-features { list-style: none; padding: 0; margin: 0 0 1.75rem; flex-grow: 1; }
.offer-features li {
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--blue-50);
    color: var(--gray-700);
    font-size: 0.92rem;
}
.offer-features li i { color: var(--blue-600); width: 1.1em; margin-right: 0.4rem; }

/* Auth forms */
.auth-section { padding: 4rem 0; }
.auth-wrap { display: flex; justify-content: center; }
.auth-card {
    background: var(--white);
    border: 1px solid var(--blue-100);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 2.5rem;
    width: 100%;
    max-width: 420px;
    border-top: 3px solid var(--blue-600);
}
.auth-card--wide { max-width: 640px; }
.auth-card h1 { display: flex; align-items: center; gap: 0.6rem; font-size: 1.5rem; }
.auth-sub { color: var(--gray-500); margin-top: -0.25rem; margin-bottom: 1.75rem; }
.dash-live-stats { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 1.5rem; margin: 0 0 1.75rem; font-size: 0.82rem; color: var(--gray-500); }
.auth-sub + .dash-live-stats { margin-top: -0.75rem; }
.auth-footer-link { text-align: center; margin-top: 1.5rem; color: var(--gray-500); }

.account-section-title {
    font-size: 1.05rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: 2.25rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--blue-50);
}
.account-section-title--danger { color: var(--red-600); }
.account-section-title--danger i { color: var(--red-600); }

.btn-danger { background: var(--white); color: var(--red-600); border-color: var(--red-600); }
.btn-danger:hover { background: var(--red-50); }

.alert-success { background: var(--blue-50); color: var(--blue-800); border: 1px solid var(--blue-100); }
.alert-warning { background: #fff8e6; color: #92600a; border: 1px solid #f5dfa3; }

.pt-lg { padding-top: 1.5rem; }
.inline-form { display: inline; }

.link-button {
    background: none;
    border: none;
    padding: 0;
    color: inherit;
    text-decoration: underline;
    font: inherit;
    cursor: pointer;
}

.form-group { margin-bottom: 1.25rem; }
.form-hint { font-size: 0.8rem; color: var(--gray-500); font-weight: 400; text-transform: none; letter-spacing: normal; margin-top: 0.4rem; }
.checkbox-label { display: flex; align-items: flex-start; gap: 0.5rem; font-size: 0.88rem; color: var(--gray-700); font-weight: 400; text-transform: none; letter-spacing: normal; cursor: pointer; }
.checkbox-label input { margin-top: 0.2rem; accent-color: var(--blue-600); flex-shrink: 0; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form label { display: block; font-weight: 700; color: var(--blue-900); margin-bottom: 0.4rem; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.03em; }
.form input[type="text"],
.form input[type="email"],
.form input[type="password"] {
    width: 100%;
    padding: 0.65rem 0.85rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--white);
}
.form input:focus { outline: none; border-color: var(--blue-600); box-shadow: 0 0 0 3px var(--blue-100); }

.plan-picker { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0.75rem; }
.plan-option {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    cursor: pointer;
    position: relative;
}
.plan-option input { position: absolute; top: 0.75rem; right: 0.75rem; accent-color: var(--blue-600); }
.plan-option-name { font-weight: 700; color: var(--blue-900); }
.plan-option-detail { font-size: 0.82rem; color: var(--gray-500); font-family: var(--mono); }
.plan-option--selected { border-color: var(--blue-600); border-width: 2px; background: var(--blue-50); }

.alert { border-radius: var(--radius); padding: 1rem 1.25rem; margin-bottom: 1.5rem; font-size: 0.92rem; }
.alert-error { background: var(--red-50); color: var(--red-600); border: 1px solid #f5c2c0; }
.alert-error ul { margin: 0; padding-left: 1.1rem; }

/* Dashboard */
.dashboard { padding: 3.5rem 0 5rem; }
.dash-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 1.5rem; margin-top: 2rem; align-items: start; }
.dash-card {
    background: var(--white);
    border: 1px solid var(--blue-100);
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 1.75rem;
}
.dash-card h3 { display: flex; align-items: center; gap: 0.5rem; font-size: 1.05rem; }
.dash-card h3 i { color: var(--blue-500); }
.dash-plan { font-size: 1.3rem; font-weight: 700; color: var(--blue-700); margin: 0.25rem 0 1rem; }
.dash-note { font-size: 0.82rem; color: var(--gray-500); border-top: 1px solid var(--blue-50); padding-top: 0.9rem; margin-top: 0.5rem; }

.credential-list { margin: 1.25rem 0; border: 1px solid var(--blue-100); border-radius: var(--radius); overflow: hidden; }
.credential-row {
    display: grid;
    grid-template-columns: 110px 1fr;
    align-items: center;
    gap: 1rem;
    padding: 0.6rem 1rem;
    border-bottom: 1px solid var(--blue-50);
}
.credential-row:last-child { border-bottom: none; }
.credential-row dt { color: var(--gray-500); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; }
.credential-row dd { margin: 0; display: flex; align-items: center; flex-wrap: wrap; gap: 0.5rem; }
.credential-row code { background: var(--blue-50); padding: 0.2rem 0.5rem; border-radius: var(--radius); color: var(--blue-900); word-break: break-all; }

.code-block { margin-top: 1rem; border: 1px solid var(--blue-900); border-radius: var(--radius); overflow: hidden; }
.code-block-label {
    background: var(--blue-900);
    color: var(--blue-100);
    font-family: var(--mono);
    font-size: 0.78rem;
    padding: 0.4rem 0.8rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}
.export-link {
    margin-left: auto;
    color: var(--blue-100);
    text-decoration: none;
    font-size: 0.75rem;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.15rem 0.5rem;
    border: 1px solid rgba(255,255,255,0.25);
    border-radius: var(--radius);
}
.export-link:hover { background: rgba(255,255,255,0.1); color: var(--white); }

.code-block-label::before {
    content: "";
    flex-shrink: 0;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #ff5f56;
    box-shadow: 14px 0 0 #ffbd2e, 28px 0 0 #27c93f;
    /* Box-shadow-Kreise malen bis 36px ueber den eigenen 8px-Rahmen hinaus (14+8, 28+8);
       margin-right muss das volle Ausmaß abdecken, sonst ueberlappt es den Folgetext. */
    margin-right: 2.5rem;
}
.code-block code {
    display: block;
    background: #012a38;
    color: #b7ecff;
    padding: 0.8rem 1rem;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre;
}

/* Legal pages */
.legal { padding: 3.5rem 0 5rem; }
.legal .wrap { max-width: 760px; }
.legal h2 { margin-top: 2rem; font-size: 1.15rem; }
.legal p, .legal li { color: var(--gray-700); }
.legal-note {
    background: var(--blue-50);
    border: 1px solid var(--blue-100);
    border-left: 3px solid var(--blue-600);
    padding: 0.9rem 1.1rem;
    font-size: 0.88rem;
    color: var(--blue-800);
    border-radius: var(--radius);
    margin-bottom: 2rem;
}

/* Admin */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 1.5rem 0 2.5rem; }
.stat-card {
    background: var(--white);
    border: 1px solid var(--blue-100);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}
.stat-value { font-family: var(--mono); font-size: 1.6rem; font-weight: 700; color: var(--blue-800); }
.stat-label { color: var(--gray-500); font-size: 0.82rem; display: flex; align-items: center; gap: 0.4rem; margin-top: 0.25rem; }
.stat-label i { color: var(--blue-500); }

.table-wrap { overflow-x: auto; border: 1px solid var(--blue-100); border-radius: var(--radius); margin-top: 1rem; }
.admin-table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
.admin-table th, .admin-table td { padding: 0.65rem 1rem; text-align: left; border-bottom: 1px solid var(--blue-50); white-space: nowrap; }
.admin-table th { background: var(--blue-50); color: var(--blue-800); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
.admin-table tr:last-child td { border-bottom: none; }
.admin-table form { margin: 0; }
.admin-table .btn-icon { color: var(--red-600); border-color: var(--red-600); width: 1.8rem; height: 1.8rem; }
.admin-table .btn-icon:hover { background: var(--red-50); }
.admin-table-actions { display: flex; gap: 0.4rem; }
.admin-table-actions a.btn-icon { color: var(--blue-700); border-color: var(--blue-700); }
.admin-table-actions a.btn-icon:hover { background: var(--blue-50); }
.text-success { color: #0e7a3d; }
.text-danger { color: var(--red-600); }

/* Error page */
.error-section { padding: 6rem 0; text-align: center; }
.error-section h1 { font-family: var(--mono); font-size: 4rem; color: var(--blue-600); }

/* Footer */
.site-footer { border-top: 1px solid var(--blue-100); padding: 2rem 0; color: var(--gray-500); font-size: 0.88rem; }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-brand { display: flex; align-items: center; gap: 0.5rem; font-weight: 700; color: var(--blue-800); }
.footer-nav { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.footer-nav a { color: var(--gray-500); text-decoration: none; }
.footer-nav a:hover { color: var(--blue-700); }

@media (max-width: 900px) {
    .dash-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
    .wrap { padding: 0 1.1rem; }

    .form-row { grid-template-columns: 1fr; }
    .nav-wrap { flex-direction: column; gap: 0.75rem; padding: 0.8rem 1.1rem; }
    .credential-row { grid-template-columns: 1fr; }

    .hero { padding: 2.75rem 0; }
    .hero h1 { font-size: 1.7rem; }
    .hero p { font-size: 1rem; }
    .hero-actions { flex-direction: column; align-items: stretch; }

    .features { padding: 2.5rem 0; }
    .offers { padding: 2.75rem 0 3rem; }
    .offer-card { padding: 1.5rem; }

    .auth-section { padding: 2.5rem 0; }
    .auth-card { padding: 1.5rem; }

    .dashboard, .legal, .error-section { padding-top: 2.5rem; padding-bottom: 3rem; }
    .dash-card { padding: 1.25rem; }

    .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 0.75rem; }

    .btn-icon { width: 2.25rem; height: 2.25rem; }

    .footer-inner { text-align: center; justify-content: center; }
}

@media (max-width: 400px) {
    .wrap { padding: 0 0.85rem; }
    .stat-grid { grid-template-columns: 1fr; }
    .hero h1 { font-size: 1.5rem; }
}