:root {
    --brand-primary: #6366f1;
    --brand-primary-dark: #4f46e5;
    --brand-secondary: #0ea5e9;
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: rgba(255, 255, 255, 0.98);
    --surface-muted: rgba(255, 255, 255, 0.65);
    --surface-subtle: rgba(248, 250, 252, 0.85);
    --text-color: #1f2933;
    --text-muted: #52606d;
    --border-color: rgba(99, 102, 241, 0.18);
    --shadow-soft: 0 20px 45px rgba(79, 70, 229, 0.12);
    --input-bg: rgba(255, 255, 255, 0.92);
    --input-border: rgba(99, 102, 241, 0.28);
    --input-focus-ring: rgba(99, 102, 241, 0.22);
    --interactive-hover: rgba(99, 102, 241, 0.12);
    --interactive-active: rgba(79, 70, 229, 0.18);
    --body-background: linear-gradient(135deg, rgba(99, 102, 241, 0.12), rgba(14, 165, 233, 0.12));
    --navbar-bg: linear-gradient(135deg, rgba(79, 70, 229, 0.95), rgba(14, 165, 233, 0.95));
    --navbar-border-color: rgba(255, 255, 255, 0.28);
    --navbar-link-color: #f8fafc;
    --dropdown-bg: rgba(255, 255, 255, 0.96);
    --dropdown-hover-bg: rgba(99, 102, 241, 0.12);
    --footer-bg: linear-gradient(135deg, rgba(99, 102, 241, 0.92), rgba(79, 70, 229, 0.92));
    --footer-text: #ffffff;
    --badge-bg: rgba(99, 102, 241, 0.12);
    --badge-text: var(--brand-primary-dark);
    --table-head-bg: rgba(99, 102, 241, 0.12);
    --table-hover-bg: rgba(99, 102, 241, 0.05);
    --table-striped-bg: rgba(99, 102, 241, 0.04);
    --table-striped-bg-alt: rgba(79, 70, 229, 0.05);
    --table-danger-bg: rgba(239, 68, 68, 0.1);
    --glass-accent: rgba(99, 102, 241, 0.25);
}

:root[data-theme="dark"] {
    --surface: rgba(37, 48, 73, 0.82);
    --surface-strong: rgba(45, 58, 87, 0.9);
    --surface-muted: rgba(59, 73, 102, 0.72);
    --surface-subtle: rgba(74, 92, 126, 0.72);
    --text-color: #f1f5f9;
    --text-muted: #cbd5f5;
    --border-color: rgba(148, 163, 184, 0.32);
    --shadow-soft: 0 24px 48px rgba(15, 23, 42, 0.38);
    --input-bg: rgba(59, 73, 102, 0.68);
    --input-border: rgba(148, 163, 184, 0.45);
    --input-focus-ring: rgba(148, 163, 248, 0.45);
    --interactive-hover: rgba(129, 140, 248, 0.2);
    --interactive-active: rgba(99, 102, 241, 0.3);
    --body-background: linear-gradient(135deg, rgba(37, 56, 115, 0.55), rgba(14, 116, 179, 0.45));
    --navbar-bg: linear-gradient(135deg, rgba(62, 80, 148, 0.95), rgba(103, 76, 182, 0.9));
    --navbar-border-color: rgba(148, 163, 184, 0.32);
    --navbar-link-color: #f8fafc;
    --dropdown-bg: rgba(45, 58, 87, 0.95);
    --dropdown-hover-bg: rgba(129, 140, 248, 0.25);
    --footer-bg: linear-gradient(135deg, rgba(51, 65, 92, 0.95), rgba(30, 41, 67, 0.95));
    --footer-text: #eef2ff;
    --badge-bg: rgba(148, 163, 248, 0.28);
    --badge-text: #ede9fe;
    --table-head-bg: rgba(148, 163, 184, 0.18);
    --table-hover-bg: rgba(148, 163, 248, 0.2);
    --table-striped-bg: rgba(129, 140, 248, 0.12);
    --table-striped-bg-alt: rgba(99, 102, 241, 0.16);
    --table-danger-bg: rgba(239, 68, 68, 0.22);
    --glass-accent: rgba(148, 163, 248, 0.42);
}
/* 🎨 Nur Tabellen-Text im Darkmode anpassen */
:root[data-theme="dark"] .table th,
:root[data-theme="dark"] .table td {
    color: #e2e8f0; /* etwas weicheres Hellgrau, gut lesbar auf dunklem Grund */
}



body {
    min-height: 100vh;
    font-family: 'Inter', 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    color: var(--text-color);
    background: var(--body-background);
    background-attachment: fixed;
}

.navbar {
    border-bottom: 1px solid var(--navbar-border-color);
    background: var(--navbar-bg);
    box-shadow: var(--shadow-soft);
}

.navbar .navbar-brand,
.navbar .nav-link,
.navbar .dropdown-item {
    color: var(--navbar-link-color);
    font-weight: 500;
    transition: color 0.25s ease, opacity 0.25s ease;
    opacity: 0.9;
}

.navbar .nav-link.active,
.navbar .nav-link:hover {
    color: #fff;
    opacity: 1;
    text-shadow: 0 0 6px rgba(255, 255, 255, 0.6);
}

.navbar .navbar-toggler {
    border-color: rgba(255, 255, 255, 0.65);
}

.navbar .navbar-toggler:focus {
    box-shadow: 0 0 0 0.15rem rgba(255, 255, 255, 0.35);
}

.navbar .dropdown-menu {
    background: var(--dropdown-bg);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(18px);
    padding: 0.75rem;
    min-width: 14rem;
}

.navbar .dropdown-item {
    color: var(--text-color);
    border-radius: 0.75rem;
}

.navbar .dropdown-item:hover,
.navbar .dropdown-item:focus {
    background: var(--dropdown-hover-bg);
    color: var(--brand-primary-dark);
    opacity: 1;
}

:root[data-theme="dark"] .navbar .dropdown-item:hover,
:root[data-theme="dark"] .navbar .dropdown-item:focus {
    color: #f8fafc;
}


main.page-shell {
    padding-bottom: 4rem;
}

.glass-card {
    background: var(--surface);
    border-radius: 1.25rem;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-soft);
    backdrop-filter: blur(16px);
    position: relative;
    overflow: hidden;
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.glass-card::before,
.glass-card::after {
    content: "";
    position: absolute;
    width: 240px;
    height: 240px;
    border-radius: 50%;
    background: radial-gradient(circle at center, var(--glass-accent), transparent 60%);
    filter: blur(0px);
    opacity: 0.65;
    pointer-events: none;
}

.glass-card::before {
    top: -120px;
    right: -60px;
}

.glass-card::after {
    bottom: -160px;
    left: -80px;
}

.section-heading {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.section-heading .title-icon {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: rgba(99, 102, 241, 0.18);
    color: var(--brand-primary-dark);
}

.section-heading h1,
.section-heading h2 {
    margin: 0;
    font-weight: 700;
    letter-spacing: -0.01em;
}

.table {
    margin-bottom: 0;
    color: var(--text-color);
    border-collapse: separate;
    border-spacing: 0;
}

.table thead {
    background: var(--table-head-bg);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
}

.table tbody tr:hover {
    background: var(--table-hover-bg);
}

.table tbody tr.table-danger {
    background: var(--table-danger-bg);
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--border-color);
    background-color: transparent;
}

.table tbody tr + tr > * {
    border-top: 1px solid var(--border-color);
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-accent-bg: var(--table-striped-bg);
    color: inherit;
}

.table-striped > tbody > tr:nth-of-type(even) > * {
    --bs-table-accent-bg: transparent;
}

.table-hover > tbody > tr:hover > * {
    --bs-table-accent-bg: var(--table-hover-bg);
    color: inherit;
}

.table-modern {
    border-radius: 1rem;
    overflow: hidden;
    background: transparent;
}

.table-modern thead th {
    border-bottom: none;
}

.table-modern tbody tr:last-child td {
    border-bottom: none;
}

.filter-card {
    border-radius: 1rem;
    background: var(--surface-subtle);
    border: 1px solid rgba(99, 102, 241, 0.15);
    backdrop-filter: blur(20px);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.glass-inner {
    background: var(--surface-strong);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    box-shadow: none;
    position: relative;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.card {
    background: var(--surface-strong);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-soft);
    color: var(--text-color);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.card .card-header {
    background: var(--surface-subtle);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-muted);
    border-top-left-radius: inherit;
    border-top-right-radius: inherit;
}

.form-control,
.form-select {
    border-radius: 0.85rem;
    border: 1px solid var(--input-border);
    padding: 0.65rem 0.9rem;
    background-color: var(--input-bg);
    color: var(--text-color);
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, color 0.2s ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 0.2rem var(--input-focus-ring);
    background-color: var(--surface-strong);
    color: var(--text-color);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

.form-check {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding-left: 0;
    margin: 0;
}

.form-check-input {
    border-radius: 0.6rem;
    border: 1px solid var(--input-border);
    background-color: var(--input-bg);
    width: 1.2rem;
    height: 1.2rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.form-check .form-check-input {
    margin-left: 0;
}

.form-switch {
    align-items: center;
}

.form-switch .form-check-input {
    width: 2.4rem;
    height: 1.3rem;
    border-radius: 1.5rem;
}

.form-check-input:focus {
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 0.2rem var(--input-focus-ring);
}

.form-check-input:checked {
    background-color: var(--brand-primary);
    border-color: var(--brand-primary);
    box-shadow: none;
}

.form-check-label {
    font-weight: 500;
    color: var(--text-color);
}

.btn-primary {
    background: linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
    border: none;
    box-shadow: 0 12px 24px rgba(79, 70, 229, 0.18);
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn-outline-secondary,
.btn-outline-primary,
.btn-outline-danger,
.btn-secondary {
    border-radius: 999px;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--brand-primary-dark), var(--brand-secondary));
    box-shadow: 0 14px 28px rgba(79, 70, 229, 0.22);
    transform: translateY(-1px);
}

.btn-outline-primary {
    color: var(--brand-primary-dark);
    border-color: rgba(99, 102, 241, 0.35);
    background-color: transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
    background-color: var(--interactive-hover);
    border-color: rgba(79, 70, 229, 0.48);
    color: var(--brand-primary-dark);
    box-shadow: 0 10px 20px rgba(79, 70, 229, 0.2);
}

.btn-outline-secondary {
    color: var(--text-muted);
    border-color: rgba(148, 163, 184, 0.45);
    background-color: transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-outline-secondary:hover,
.btn-outline-secondary:focus {
    background-color: var(--interactive-hover);
    border-color: rgba(148, 163, 184, 0.65);
    color: var(--text-color);
}

.btn-outline-danger {
    color: #dc2626;
    border-color: rgba(239, 68, 68, 0.5);
    background-color: transparent;
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-outline-danger:hover,
.btn-outline-danger:focus {
    background-color: rgba(239, 68, 68, 0.12);
    border-color: rgba(239, 68, 68, 0.65);
    color: #b91c1c;
}

.btn-outline-light {
    color: var(--navbar-link-color);
    border-color: rgba(255, 255, 255, 0.75);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
    background-color: rgba(255, 255, 255, 0.16);
    border-color: rgba(255, 255, 255, 0.9);
    color: #1f2937;
}

.alert {
    border-radius: 0.9rem;
    border: none;
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.12);
}

.badge-soft {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    background: var(--badge-bg);
    color: var(--badge-text);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    border-radius: 999px;
    font-size: 0.75rem;
    background: var(--surface-subtle);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.chip-accent {
    background: rgba(99, 102, 241, 0.12);
    border-color: rgba(99, 102, 241, 0.25);
    color: var(--brand-primary-dark);
}

.settings-card {
    display: grid;
    gap: 1.75rem;
}

.settings-form {
    display: grid;
    gap: 1.15rem;
}

.settings-form .form-group {
    display: grid;
    gap: 0.4rem;
}

.settings-form .form-label,
.settings-form label {
    font-weight: 600;
    color: var(--text-muted);
}

.settings-form .invalid-feedback {
    display: block;
    font-size: 0.85rem;
}

.settings-form .form-text {
    color: var(--text-muted);
}

.settings-note {
    padding: 1.25rem 1.5rem;
    border-radius: 1rem;
    border: 1px dashed var(--border-color);
    background: var(--surface-subtle);
    color: var(--text-muted);
    line-height: 1.6;
}

.settings-note h2 {
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.settings-components {
    display: grid;
    gap: 1rem;
}

.settings-components-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.settings-component-row {
    background: var(--surface-subtle);
    border: 1px solid rgba(99, 102, 241, 0.16);
    border-radius: 0.85rem;
    padding: 1rem 1.25rem;
    display: grid;
    gap: 0.75rem;
}

.settings-component-row .form-label {
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.settings-checkbox {
    gap: 0.5rem;
}

.settings-checkbox .form-check-input {
    width: 1.35rem;
    height: 1.35rem;
}

.settings-table-wrapper {
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.table-action-cell .btn {
    margin-right: 0.35rem;
    margin-bottom: 0.35rem;
}

footer.site-footer {
    color: var(--footer-text);
    padding: 2rem 0;
    background: var(--footer-bg);
    text-align: center;
    border-top-left-radius: 1.5rem;
    border-top-right-radius: 1.5rem;
    margin-top: 4rem;
}

footer.site-footer p {
    margin: 0;
    opacity: 0.9;
}


.theme-toggle-btn {
    --bs-btn-color: #fff;
    --bs-btn-bg: rgba(255, 255, 255, 0.08);
    --bs-btn-border-color: rgba(255, 255, 255, 0.6);
    --bs-btn-hover-bg: rgba(255, 255, 255, 0.16);
    --bs-btn-hover-border-color: #ffffff;
    --bs-btn-active-bg: rgba(255, 255, 255, 0.2);
    --bs-btn-active-border-color: rgba(255, 255, 255, 0.9);
    --bs-btn-padding-x: 1rem;
    --bs-btn-padding-y: 0.4rem;
    --bs-btn-font-weight: 600;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    backdrop-filter: blur(6px);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.theme-toggle-btn .theme-toggle-icon {
    font-size: 1rem;
    line-height: 1;
}

.theme-toggle-btn.is-dark {
    --bs-btn-color: var(--text-color);
    --bs-btn-bg: rgba(148, 163, 184, 0.18);
    --bs-btn-border-color: rgba(148, 163, 184, 0.55);
    --bs-btn-hover-bg: rgba(148, 163, 184, 0.24);
    --bs-btn-hover-border-color: rgba(226, 232, 240, 0.85);
    --bs-btn-active-bg: rgba(148, 163, 184, 0.3);
    --bs-btn-active-border-color: rgba(226, 232, 240, 0.9);
}

:root[data-theme="dark"] .navbar .nav-link,
:root[data-theme="dark"] .navbar .dropdown-item {
    opacity: 0.9;
}

:root[data-theme="dark"] .navbar .dropdown-menu {
    border: 1px solid rgba(148, 163, 184, 0.25);
    color: var(--text-color);
}

:root[data-theme="dark"] .filter-card {
    background: var(--surface-subtle);
    border-color: rgba(148, 163, 184, 0.22);
}

:root[data-theme="dark"] .glass-card {
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.55);
}

:root[data-theme="dark"] .glass-inner {
    background: var(--surface-strong);
}

:root[data-theme="dark"] .alert {
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.45);
}

:root[data-theme="dark"] .form-control,
:root[data-theme="dark"] .form-select {
    background-color: var(--input-bg);
    color: var(--text-color);
    border-color: var(--input-border);
}

:root[data-theme="dark"] .form-control:focus,
:root[data-theme="dark"] .form-select:focus {
    border-color: rgba(129, 140, 248, 0.65);
    box-shadow: 0 0 0 0.2rem var(--input-focus-ring);
    background-color: var(--surface-strong);
}

:root[data-theme="dark"] .form-check-input {
    background-color: var(--input-bg);
    border-color: var(--input-border);
}

:root[data-theme="dark"] .form-check-input:checked {
    background-color: rgba(129, 140, 248, 0.85);
    border-color: rgba(129, 140, 248, 0.85);
}

:root[data-theme="dark"] .navbar .navbar-toggler {
    border-color: rgba(226, 232, 240, 0.45);
}

:root[data-theme="dark"] .navbar .navbar-toggler:focus {
    box-shadow: 0 0 0 0.15rem rgba(148, 163, 184, 0.35);
}

:root[data-theme="dark"] .form-control::placeholder,
:root[data-theme="dark"] .form-select,
:root[data-theme="dark"] .form-check-label {
    color: var(--text-muted);
}

:root[data-theme="dark"] .chip {
    background: var(--surface-subtle);
    border-color: rgba(148, 163, 184, 0.25);
    color: var(--text-color);
}

:root[data-theme="dark"] .chip-accent {
    background: rgba(129, 140, 248, 0.16);
    border-color: rgba(129, 140, 248, 0.35);
    color: #e0e7ff;
}

:root[data-theme="dark"] .settings-note,
:root[data-theme="dark"] .settings-component-row {
    background: var(--surface-subtle);
    border-color: rgba(148, 163, 184, 0.22);
    color: var(--text-color);
}

:root[data-theme="dark"] .settings-table-wrapper {
    border-color: rgba(148, 163, 184, 0.25);
}

:root[data-theme="dark"] .btn-outline-secondary {
    color: var(--text-muted);
    border-color: rgba(148, 163, 184, 0.55);
}

:root[data-theme="dark"] .btn-outline-secondary:hover,
:root[data-theme="dark"] .btn-outline-secondary:focus {
    background-color: var(--interactive-hover);
    border-color: rgba(148, 163, 184, 0.75);
    color: var(--text-color);
}

:root[data-theme="dark"] .btn-outline-primary {
    color: #c7d2fe;
    border-color: rgba(129, 140, 248, 0.55);
}

:root[data-theme="dark"] .btn-outline-primary:hover,
:root[data-theme="dark"] .btn-outline-primary:focus {
    background-color: var(--interactive-hover);
    border-color: rgba(129, 140, 248, 0.75);
    color: #e0e7ff;
}

:root[data-theme="dark"] .btn-outline-light {
    color: var(--text-color);
    border-color: rgba(226, 232, 240, 0.45);
}

:root[data-theme="dark"] .btn-outline-light:hover,
:root[data-theme="dark"] .btn-outline-light:focus {
    background-color: rgba(226, 232, 240, 0.18);
    border-color: rgba(226, 232, 240, 0.65);
    color: #0f172a;
}

:root[data-theme="dark"] .table > :not(caption) > * > * {
    border-bottom-color: rgba(148, 163, 184, 0.25);
}

@media (max-width: 767px) {
    .section-heading {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-heading .title-icon {
        width: 38px;
        height: 38px;
    }

    .table-action-cell {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }
}