:root {
    --ui-bg: #eef3f8;
    --ui-page-gradient: radial-gradient(1200px 520px at 100% -20%, rgba(28, 113, 159, 0.1), transparent 70%),
        radial-gradient(900px 380px at -10% 0%, rgba(31, 122, 74, 0.09), transparent 72%),
        #eef3f8;
    --ui-surface: #ffffff;
    --ui-surface-muted: #f8fbff;
    --ui-surface-raised: #ffffff;
    --ui-border: #dbe6ef;
    --ui-border-strong: #9ec6e5;
    --ui-text: #0b2239;
    --ui-heading: #08233b;
    --ui-muted: #4f6b87;
    --ui-primary: #0f4a7a;
    --ui-primary-hover: #0b3b63;
    --ui-primary-soft: #eaf4ff;
    --ui-primary-contrast: #ffffff;
    --ui-success: #1f7a4a;
    --ui-success-soft: #f0fdf4;
    --ui-warning: #b45309;
    --ui-warning-soft: #fff7ed;
    --ui-danger: #b91c1c;
    --ui-danger-soft: #fef2f2;
    --ui-info-soft: #eff6ff;
    --ui-focus: rgba(15, 74, 122, 0.16);
    --ui-shadow: 0 16px 34px rgba(24, 55, 84, 0.1);
    --ui-shadow-soft: 0 8px 20px rgba(24, 55, 84, 0.07);
    --ui-radius: 8px;
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --ui-bg: #0b1120;
    --ui-page-gradient: radial-gradient(1200px 520px at 100% -20%, rgba(56, 189, 248, 0.11), transparent 70%),
        radial-gradient(900px 380px at -10% 0%, rgba(34, 197, 94, 0.09), transparent 72%),
        #0b1120;
    --ui-surface: #111827;
    --ui-surface-muted: #162235;
    --ui-surface-raised: #1b2638;
    --ui-border: #2d3b52;
    --ui-border-strong: #4b6382;
    --ui-text: #e6edf7;
    --ui-heading: #f8fafc;
    --ui-muted: #9fb0c6;
    --ui-primary: #38bdf8;
    --ui-primary-hover: #7dd3fc;
    --ui-primary-soft: #0f2a3b;
    --ui-primary-contrast: #062236;
    --ui-success: #4ade80;
    --ui-success-soft: #10291d;
    --ui-warning: #fbbf24;
    --ui-warning-soft: #33240b;
    --ui-danger: #f87171;
    --ui-danger-soft: #351417;
    --ui-info-soft: #10243a;
    --ui-focus: rgba(56, 189, 248, 0.22);
    --ui-shadow: 0 18px 42px rgba(0, 0, 0, 0.35);
    --ui-shadow-soft: 0 10px 24px rgba(0, 0, 0, 0.24);
}

html,
body {
    font-family: "Manrope", "Segoe UI", "Trebuchet MS", sans-serif;
    margin: 0;
    color: var(--ui-text);
    background: var(--ui-page-gradient);
}

a,
.btn-link {
    color: var(--ui-primary);
}

h1,
h2,
h3 {
    color: var(--ui-heading);
    letter-spacing: 0.01em;
}

.workspace-content > * {
    animation: page-in 240ms ease-out;
}

button,
.btn {
    border-radius: 999px;
    font-weight: 750;
    letter-spacing: 0;
    transition: transform 140ms ease, box-shadow 140ms ease, background-color 140ms ease, border-color 140ms ease, color 140ms ease;
}

button:hover,
.btn:hover {
    transform: translateY(-1px);
}

.btn {
    --bs-btn-padding-x: 0.9rem;
    --bs-btn-padding-y: 0.42rem;
    --bs-btn-border-radius: 999px;
    --bs-btn-focus-box-shadow: 0 0 0 0.22rem var(--ui-focus);
}

.btn-primary {
    color: var(--ui-primary-contrast);
    background: linear-gradient(135deg, var(--ui-primary) 0%, var(--ui-primary-hover) 100%);
    border-color: var(--ui-primary);
    box-shadow: 0 10px 22px rgba(15, 74, 122, 0.18);
}

.btn-primary:hover,
.btn-primary:focus {
    color: var(--ui-primary-contrast);
    background: linear-gradient(135deg, var(--ui-primary-hover) 0%, var(--ui-primary) 100%);
    border-color: var(--ui-primary-hover);
    box-shadow: 0 14px 28px rgba(15, 74, 122, 0.24);
}

.btn-success {
    color: #ffffff;
    background: linear-gradient(135deg, #1f7a4a 0%, #16633c 100%);
    border-color: #1f7a4a;
}

.btn-danger {
    color: #ffffff;
    background: linear-gradient(135deg, #dc2626 0%, #991b1b 100%);
    border-color: #b91c1c;
}

.btn-warning {
    color: #3b2300;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    border-color: #d97706;
}

.btn-outline-primary,
.btn-outline-secondary,
.btn-secondary {
    color: var(--ui-primary);
    border-color: var(--ui-border-strong);
    background: var(--ui-surface-raised);
}

.btn-outline-primary:hover,
.btn-outline-secondary:hover,
.btn-secondary:hover {
    color: var(--ui-heading);
    background: var(--ui-primary-soft);
    border-color: var(--ui-primary);
    box-shadow: var(--ui-shadow-soft);
}

.btn:disabled,
.btn.disabled,
button:disabled {
    opacity: 0.58;
    transform: none;
    box-shadow: none;
    cursor: not-allowed;
}

input[type="text"],
input[type="number"],
input[type="date"],
select,
textarea,
.form-control {
    border: 1px solid var(--ui-border-strong);
    border-radius: var(--ui-radius);
    background: var(--ui-surface-raised);
    color: var(--ui-text);
    transition: border-color 140ms ease, box-shadow 140ms ease, background-color 140ms ease;
}

.disabled-input {
    background: var(--ui-surface-muted) !important;
    color: var(--ui-muted);
    cursor: not-allowed;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="date"]:focus,
select:focus,
textarea:focus,
.form-control:focus {
    outline: none;
    border-color: var(--ui-primary);
    box-shadow: 0 0 0 3px var(--ui-focus);
    background: var(--ui-surface);
    color: var(--ui-text);
}

.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--ui-text);
    --bs-table-striped-color: var(--ui-text);
    --bs-table-striped-bg: var(--ui-surface-muted);
    --bs-table-hover-color: var(--ui-text);
    --bs-table-hover-bg: var(--ui-primary-soft);
    --bs-table-border-color: var(--ui-border);
}

.table thead th {
    color: var(--ui-muted);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.filter-shell,
.list-shell,
.card-section,
.meta-box,
.diff-panel,
.review-actions {
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius);
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow-soft);
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.filter-shell {
    padding: 0.65rem;
}

.list-shell {
    padding: 0.72rem;
}

.filter-shell:hover,
.list-shell:hover,
.card-section:hover,
.meta-box:hover,
.diff-panel:hover,
.review-actions:hover {
    border-color: #c2d7e7;
    box-shadow: var(--ui-shadow);
    transform: translateY(-1px);
}

.blazor-error-boundary {
    background: #b91c1c;
    color: #fff;
    padding: 1rem;
    border-radius: 8px;
}

.blazor-error-boundary::after {
    content: "Ein Fehler ist aufgetreten.";
}

@keyframes page-in {
    from {
        opacity: 0;
        transform: translateY(5px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes thumb-bounce {
    0% {
        transform: scale(0.55) rotate(-18deg);
        opacity: 0;
    }
    45% {
        transform: scale(1.28) rotate(10deg);
        opacity: 1;
    }
    70% {
        transform: scale(0.94) rotate(-4deg);
    }
    100% {
        transform: scale(1) rotate(0);
    }
}

.status-popup {
    position: fixed !important;
    left: 50%;
    top: 50%;
    right: auto;
    bottom: auto;
    transform: translate(-50%, -50%);
    z-index: 5000;
    max-width: min(560px, 92vw);
    display: inline-flex !important;
    align-items: center;
    gap: 0.6rem;
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.25);
}

.popup-close {
    border: none;
    background: transparent;
    color: #7a4200;
    font-weight: 700;
    line-height: 1;
}

.status-line {
    border: 1px solid color-mix(in srgb, var(--ui-warning) 34%, var(--ui-border));
    background: var(--ui-warning-soft);
    color: var(--ui-warning);
    border-radius: var(--ui-radius);
    padding: 0.58rem 0.72rem;
    font-size: 0.86rem;
}

.status-success {
    border-color: color-mix(in srgb, var(--ui-success) 42%, var(--ui-border));
    background: var(--ui-success-soft);
    color: var(--ui-success);
}

.status-popup.status-success {
    min-width: min(560px, 94vw);
    display: grid !important;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 1rem;
    border-radius: 22px;
    padding: 1.25rem 1.35rem;
    border-color: var(--ui-border);
    background: var(--ui-surface-raised);
    color: var(--ui-text);
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.25);
    animation: status-success-auto-hide 2s forwards;
}

.status-popup.status-success::before {
    content: "👍";
    width: 3.35rem;
    height: 3.35rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.75rem;
    font-weight: 900;
    background: #16a34a;
    animation: thumb-bounce 780ms cubic-bezier(0.2, 0.9, 0.25, 1.2) both;
}

@keyframes status-success-auto-hide {
    0%,
    82% {
        opacity: 1;
        visibility: visible;
    }

    100% {
        opacity: 0;
        visibility: hidden;
    }
}

.status-error {
    border-color: color-mix(in srgb, var(--ui-danger) 42%, var(--ui-border));
    background: var(--ui-danger-soft);
    color: var(--ui-danger);
}

.status-success .popup-close {
    color: #166534;
}

.status-error .popup-close {
    color: #991b1b;
}

.dialog-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(7, 18, 34, 0.56);
    display: grid;
    place-items: center;
    padding: 1rem;
}

.dialog-card {
    width: min(720px, 96vw);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius);
    background: var(--ui-surface);
    color: var(--ui-text);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.36);
}

.dialog-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.8rem 0.9rem;
    border-bottom: 1px solid var(--ui-border);
}

.dialog-header h3 {
    margin: 0;
    font-size: 1rem;
}

.dialog-close {
    border: none;
    background: transparent;
    font-size: 1.1rem;
    color: var(--ui-muted);
}

.dialog-body {
    display: grid;
    gap: 0.42rem;
    padding: 0.9rem;
}

.dialog-body label {
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--ui-text);
}

.dialog-body textarea {
    resize: vertical;
}

.upload-meta {
    border: 1px dashed var(--ui-border-strong);
    border-radius: var(--ui-radius);
    background: var(--ui-surface-muted);
    padding: 0.55rem 0.6rem;
    font-size: 0.8rem;
    color: var(--ui-muted);
}

.dialog-actions {
    border-top: 1px solid var(--ui-border);
    display: flex;
    justify-content: flex-end;
    gap: 0.55rem;
    padding: 0.75rem 0.9rem;
}
.draft-bar {
    display: grid;
    grid-template-columns: minmax(280px, 1fr) auto;
    gap: 0.75rem;
    align-items: end;
    margin: 0 0 1.15rem;
    padding: 0.85rem;
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius);
    background: var(--ui-surface-muted);
}

.draft-picker {
    min-width: 0;
}

.draft-picker label {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--ui-muted);
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
}

.draft-picker select {
    width: 100%;
    min-width: 0;
    min-height: 2.05rem;
}

.draft-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    align-items: center;
    justify-content: flex-end;
}

.draft-actions .btn {
    min-width: 5.8rem;
    white-space: nowrap;
}

.draft-status {
    grid-column: 1 / -1;
    justify-self: start;
    display: inline-flex;
    align-items: center;
    min-height: 1.8rem;
    padding: 0.22rem 0.52rem;
    border: 1px solid var(--ui-border-strong);
    border-radius: 999px;
    background: var(--ui-primary-soft);
    color: var(--ui-primary);
    font-size: 0.8rem;
}

@media (max-width: 1180px) {
    .draft-bar {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .draft-actions {
        justify-content: flex-start;
    }
}

@media (max-width: 760px) {
    .draft-bar {
        grid-template-columns: 1fr;
        align-items: stretch;
    }

    .draft-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .draft-actions .btn,
    .draft-actions .btn {
        width: 100%;
    }
}

/* Unified auto-dismissing legacy popup messages. */
.status-popup {
    position: fixed !important;
    left: 50% !important;
    top: 50% !important;
    right: auto !important;
    bottom: auto !important;
    transform: translate(-50%, -50%) !important;
    z-index: 5000 !important;
    min-width: min(560px, 94vw) !important;
    max-width: min(640px, 94vw) !important;
    display: grid !important;
    grid-template-columns: auto minmax(0, 1fr) auto !important;
    align-items: center !important;
    gap: 1rem !important;
    border-radius: 22px !important;
    padding: 1.25rem 1.35rem !important;
    border: 1px solid var(--ui-border) !important;
    background: var(--ui-surface-raised) !important;
    color: var(--ui-text) !important;
    box-shadow: 0 24px 80px rgba(15, 23, 42, 0.25) !important;
    animation: status-popup-auto-hide 3s forwards !important;
}

.status-popup::before {
    content: "!";
    width: 3.35rem;
    height: 3.35rem;
    border-radius: 999px;
    display: grid;
    place-items: center;
    color: #fff;
    font-size: 1.75rem;
    font-weight: 900;
    background: #f59e0b;
}

.status-popup.status-success::before {
    content: "\1F44D\1F3FB";
    position: relative;
    overflow: visible;
    color: inherit;
    background: transparent;
    box-shadow: none;
    font-size: 3.15rem;
    line-height: 1;
    filter: drop-shadow(0 0.45rem 0.75rem rgba(15, 23, 42, 0.2));
    animation: success-thumb-pulse 1250ms ease-in-out both;
    transform-origin: 50% 70%;
}

.status-popup.status-success::after {
    content: "";
    position: absolute;
    left: 0.55rem;
    top: 50%;
    width: 4.9rem;
    height: 4.9rem;
    pointer-events: none;
    background:
        radial-gradient(circle at 8% 28%, #f97316 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 20% 8%, #eab308 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 48% 0%, #22c55e 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 78% 10%, #06b6d4 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 92% 34%, #8b5cf6 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 72% 84%, #ef4444 0 0.17rem, transparent 0.18rem),
        radial-gradient(circle at 14% 78%, #38bdf8 0 0.15rem, transparent 0.16rem),
        radial-gradient(circle at 94% 74%, #4ade80 0 0.15rem, transparent 0.16rem);
    filter: drop-shadow(0 0 0.45rem rgba(249, 115, 22, 0.35));
    transform: translateY(-50%) scale(0);
    animation: success-fireworks-pop 1450ms ease-out both;
}

.status-popup.status-error::before {
    content: "!";
    background: #dc2626;
}

.status-popup .popup-close,
.status-popup.popup-close,
.popup-close {
    color: #64748b;
}

@keyframes status-popup-auto-hide {
    0%,
    84% {
        opacity: 1;
        visibility: visible;
    }

    100% {
        opacity: 0;
        visibility: hidden;
    }
}

@keyframes success-thumb-pulse {
    0% {
        transform: scale(0.86);
        opacity: 0;
    }
    22% {
        transform: scale(1.08);
        opacity: 1;
    }
    48% {
        transform: scale(0.96);
    }
    72% {
        transform: scale(1.04);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes success-fireworks-pop {
    0% {
        opacity: 0;
        transform: translateY(-50%) scale(0.3) rotate(0deg);
    }
    28% {
        opacity: 1;
        transform: translateY(-50%) scale(1) rotate(12deg);
    }
    78% {
        opacity: 0.85;
        transform: translateY(-50%) scale(1.08) rotate(20deg);
    }
    100% {
        opacity: 0;
        transform: translateY(-50%) scale(1.2) rotate(28deg);
    }
}

.assistant-page {
    display: grid;
    gap: 1rem;
    min-height: calc(100vh - 6rem);
    grid-template-rows: auto minmax(0, 1fr);
}

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

.assistant-header h1 {
    margin: 0;
}

.assistant-header p {
    margin: 0.25rem 0 0;
    color: var(--ui-muted);
}

.assistant-frame-shell {
    min-height: calc(100vh - 9.5rem);
    border: 1px solid var(--ui-border);
    border-radius: var(--ui-radius);
    overflow: hidden;
    background: var(--ui-surface);
    box-shadow: var(--ui-shadow-soft);
}

.assistant-frame {
    width: 100%;
    height: calc(100vh - 9.5rem);
    min-height: 44rem;
    border: 0;
    display: block;
    background: var(--ui-surface);
}

.assistant-tab-button {
    white-space: nowrap;
}

.ui-preferences {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
}

.ui-pref-group {
    display: inline-flex;
    align-items: center;
    padding: 0.16rem;
    border: 1px solid var(--ui-border);
    border-radius: 999px;
    background: color-mix(in srgb, var(--ui-surface) 92%, transparent);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.08);
}

.ui-pref-button {
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: var(--ui-muted);
    min-width: 2.35rem;
    min-height: 1.75rem;
    padding: 0.2rem 0.55rem;
    font-size: 0.75rem;
    font-weight: 800;
}

.ui-pref-button.active {
    color: var(--ui-primary-contrast);
    background: var(--ui-primary);
    box-shadow: 0 6px 16px rgba(15, 74, 122, 0.22);
}

[data-theme="dark"] body,
[data-theme="dark"] .app-shell {
    background: var(--ui-page-gradient);
}

[data-theme="dark"] :where(.card, .modal-content, .dropdown-menu, .list-group-item, .toast, .popover, .accordion-item),
[data-theme="dark"] :where(.sidebar, .workspace-header, .workspace-footer, .dialog-card, .login-card, .filter-shell, .list-shell, .card-section, .meta-box, .diff-panel, .review-actions, .draft-bar, .upload-meta, .assistant-frame-shell),
[data-theme="dark"] :where(.question-card, .entry-card, .submission-card, .knowledge-card, .dashboard-card, .stats-card, .search-panel, .form-panel, .admin-card, .content-card) {
    background: var(--ui-surface);
    border-color: var(--ui-border);
    color: var(--ui-text);
}

[data-theme="dark"] :where(.workspace-header, .workspace-footer, .sidebar-footer) {
    background: color-mix(in srgb, var(--ui-surface) 92%, transparent);
}

[data-theme="dark"] :where(h1, h2, h3, h4, h5, h6, label, .form-label, .dialog-header h3, .dialog-body label, .workspace-header h2, .card-title, .modal-title) {
    color: var(--ui-heading);
}

[data-theme="dark"] :where(.text-muted, .small, .hint, .help-text, .card-subtitle, .meta, .description, .empty-state, .login-sub, .assistant-header p) {
    color: var(--ui-muted) !important;
}

[data-theme="dark"] :where(input[type="text"], input[type="number"], input[type="date"], input[type="password"], input[type="email"], select, textarea, .form-control, .form-select) {
    background: #0b1220;
    border-color: var(--ui-border);
    color: var(--ui-text);
}

[data-theme="dark"] :where(input, textarea, select, .form-control, .form-select)::placeholder {
    color: #73849b;
}

[data-theme="dark"] :where(.table) {
    --bs-table-color: var(--ui-text);
    --bs-table-bg: transparent;
    --bs-table-striped-color: var(--ui-text);
    --bs-table-striped-bg: rgba(255, 255, 255, 0.025);
    --bs-table-hover-color: var(--ui-text);
    --bs-table-hover-bg: rgba(56, 189, 248, 0.09);
    --bs-table-border-color: var(--ui-border);
}

[data-theme="dark"] :where(.table td, .table th, .table thead th) {
    color: var(--ui-text);
    border-color: var(--ui-border);
}

[data-theme="dark"] :where(.alert-warning, .status-line, .maintenance-banner, .status-badge.fallback) {
    background: var(--ui-warning-soft);
    border-color: color-mix(in srgb, var(--ui-warning) 42%, var(--ui-border));
    color: var(--ui-warning);
}

[data-theme="dark"] :where(.alert-danger, .status-error, .maintenance-banner.active) {
    background: var(--ui-danger-soft);
    border-color: color-mix(in srgb, var(--ui-danger) 42%, var(--ui-border));
    color: var(--ui-danger);
}

[data-theme="dark"] :where(.alert-success, .status-success, .status-badge.ok) {
    background: var(--ui-success-soft);
    border-color: color-mix(in srgb, var(--ui-success) 42%, var(--ui-border));
    color: var(--ui-success);
}

[data-theme="dark"] :where(.user-label, .mailbox-button, .draft-status, .badge, .page-link, .nav-tabs .nav-link, .form-check-input) {
    background: var(--ui-surface-muted);
    border-color: var(--ui-border);
    color: var(--ui-text);
}

[data-theme="dark"] :where(.btn-outline-primary, .btn-outline-secondary, .btn-secondary) {
    background: var(--ui-surface-raised);
    border-color: var(--ui-border-strong);
    color: var(--ui-primary);
}

[data-theme="dark"] :where(.btn-outline-primary:hover, .btn-outline-secondary:hover, .btn-secondary:hover) {
    background: var(--ui-primary-soft);
    border-color: var(--ui-primary);
    color: var(--ui-primary-hover);
}

[data-theme="dark"] .ui-pref-button.active {
    background: var(--ui-primary);
    color: var(--ui-primary-contrast);
}

@media (max-width: 720px) {
    .assistant-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .assistant-frame-shell,
    .assistant-frame {
        min-height: 34rem;
        height: calc(100vh - 10rem);
    }
}