:root,
:root[data-theme='dark'] {
    color-scheme: dark;
    --app-bg: #08131c;
    --app-text: #eff6fb;
    --app-muted: #9bb3c4;
    --app-accent: #f4c542;
    --app-accent-strong: #ffb703;
    --app-text-strong: #f7fbff;
    --radius-card: 1.7rem;
    --radius-soft: 1.3rem;
    --radius-control: 1.15rem;
    --radius-pill: 999px;
    --control-height: 2.65rem;
    --panel-bg: linear-gradient(180deg, rgba(19, 44, 61, 0.78), rgba(11, 28, 40, 0.96));
    --panel-border: rgba(255, 255, 255, 0.08);
    --panel-shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
    --surface-bg: linear-gradient(180deg, rgba(20, 45, 63, 0.78), rgba(8, 20, 30, 0.96));
    --surface-border: rgba(255, 255, 255, 0.08);
    --modal-bg: linear-gradient(180deg, rgba(18, 40, 56, 0.98), rgba(8, 20, 30, 0.98));
    --modal-border: rgba(255, 255, 255, 0.08);
    --backdrop-bg: rgba(5, 12, 18, 0.6);
    --control-bg: rgba(255, 255, 255, 0.04);
    --control-border: rgba(255, 255, 255, 0.1);
    --control-text: var(--app-text);
    --chip-bg: rgba(255, 255, 255, 0.07);
    --chip-text: var(--app-muted);
    --toggle-bg: rgba(255, 255, 255, 0.05);
    --toggle-border: rgba(255, 255, 255, 0.08);
    --sidebar-bg: linear-gradient(180deg, rgba(7, 22, 36, 0.96), rgba(12, 31, 48, 0.88));
    --sidebar-border: rgba(255, 255, 255, 0.08);
    --sidebar-divider: rgba(255, 255, 255, 0.08);
    --sidebar-control-bg: rgba(255, 255, 255, 0.06);
    --sidebar-control-border: rgba(255, 255, 255, 0.1);
    --sidebar-control-text: rgba(255, 255, 255, 0.9);
    --sidebar-control-hover-bg: rgba(255, 255, 255, 0.1);
    --sidebar-control-hover-border: rgba(255, 255, 255, 0.16);
    --nav-text: rgba(255, 255, 255, 0.86);
    --nav-text-strong: #ffffff;
    --nav-caption: rgba(255, 255, 255, 0.5);
    --nav-icon-bg: rgba(255, 255, 255, 0.08);
    --nav-icon-text: #ffffff;
    --nav-link-hover-bg: rgba(255, 255, 255, 0.08);
    --nav-link-hover-border: rgba(255, 255, 255, 0.08);
    --nav-link-active-bg: rgba(255, 255, 255, 0.12);
    --nav-link-active-border: rgba(255, 255, 255, 0.1);
    --brand-mark-text: #041018;
    --feedback-success-bg: rgba(60, 207, 145, 0.12);
    --feedback-success-border: rgba(60, 207, 145, 0.28);
    --feedback-success-text: #c8ffe6;
    --shell-glow-primary: rgba(242, 201, 76, 0.16);
    --shell-glow-secondary: rgba(17, 138, 178, 0.18);
}

:root[data-theme='light'] {
    color-scheme: light;
    --app-bg: #eef3f8;
    --app-text: #182837;
    --app-muted: #5f7588;
    --app-accent: #e2aa1f;
    --app-accent-strong: #c98b00;
    --app-text-strong: #13202d;
    --panel-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(243, 247, 251, 0.98));
    --panel-border: rgba(24, 40, 55, 0.09);
    --panel-shadow: 0 18px 44px rgba(31, 53, 72, 0.12);
    --surface-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(242, 246, 250, 0.98));
    --surface-border: rgba(24, 40, 55, 0.09);
    --modal-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(244, 248, 252, 0.98));
    --modal-border: rgba(24, 40, 55, 0.12);
    --backdrop-bg: rgba(29, 42, 58, 0.18);
    --control-bg: rgba(255, 255, 255, 0.96);
    --control-border: rgba(24, 40, 55, 0.14);
    --control-text: #182837;
    --chip-bg: rgba(24, 40, 55, 0.08);
    --chip-text: #5f7588;
    --toggle-bg: rgba(24, 40, 55, 0.05);
    --toggle-border: rgba(24, 40, 55, 0.1);
    --sidebar-bg: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(241, 246, 251, 0.96));
    --sidebar-border: rgba(24, 40, 55, 0.09);
    --sidebar-divider: rgba(24, 40, 55, 0.09);
    --sidebar-control-bg: rgba(24, 40, 55, 0.05);
    --sidebar-control-border: rgba(24, 40, 55, 0.1);
    --sidebar-control-text: #182837;
    --sidebar-control-hover-bg: rgba(24, 40, 55, 0.09);
    --sidebar-control-hover-border: rgba(24, 40, 55, 0.14);
    --nav-text: rgba(24, 40, 55, 0.86);
    --nav-text-strong: #182837;
    --nav-caption: rgba(24, 40, 55, 0.54);
    --nav-icon-bg: rgba(24, 40, 55, 0.08);
    --nav-icon-text: #182837;
    --nav-link-hover-bg: rgba(24, 40, 55, 0.05);
    --nav-link-hover-border: rgba(24, 40, 55, 0.08);
    --nav-link-active-bg: rgba(226, 170, 31, 0.18);
    --nav-link-active-border: rgba(226, 170, 31, 0.32);
    --brand-mark-text: #182837;
    --feedback-success-bg: rgba(24, 157, 106, 0.12);
    --feedback-success-border: rgba(24, 157, 106, 0.24);
    --feedback-success-text: #0f5f44;
    --shell-glow-primary: rgba(244, 197, 66, 0.18);
    --shell-glow-secondary: rgba(44, 124, 158, 0.12);
}

html, body {
    margin: 0;
    min-height: 100%;
    background: var(--app-bg);
    color: var(--app-text);
    font-family: "Segoe UI Variable", "Bahnschrift", "Segoe UI", system-ui, sans-serif;
}

a {
    color: inherit;
}

h1:focus,
h2:focus {
    outline: none;
}

p {
    line-height: 1.5;
}

button,
input,
select,
textarea {
    font: inherit;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #3ccf91;
}

.invalid {
    outline: 1px solid #ff6b6b;
}

.validation-message {
    color: #ff9d9d;
}

.blazor-error-boundary {
    border-radius: 1rem;
    background: rgba(173, 34, 34, 0.18);
    border: 1px solid rgba(255, 120, 120, 0.3);
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

.blazor-error-boundary::after {
    content: "An error has occurred.";
}

#blazor-error-ui {
    background: rgba(7, 16, 24, 0.95);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    bottom: 0;
    box-shadow: 0 -12px 24px rgba(0, 0, 0, 0.22);
    display: none;
    left: 0;
    padding: 0.85rem 1rem;
    position: fixed;
    right: 0;
    z-index: 1000;
}

#blazor-error-ui .dismiss,
#blazor-error-ui .reload {
    color: var(--app-accent);
    cursor: pointer;
    margin-left: 1rem;
    text-decoration: none;
}

.page-modal-backdrop {
    position: fixed;
    inset: 0;
    background: var(--backdrop-bg);
    backdrop-filter: blur(6px);
    z-index: 999;
}

.page-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(960px, calc(100vw - 1.5rem));
    max-height: calc(100vh - 1.5rem);
    overflow: auto;
    z-index: 1000;
    padding: 1.05rem;
    border-radius: calc(var(--radius-card) + 0.1rem);
    background: var(--modal-bg);
    border: 1px solid var(--modal-border);
    box-shadow: 0 32px 80px rgba(0, 0, 0, 0.42);
}

.surface-card {
    padding: 1.05rem 1.1rem;
    border-radius: var(--radius-card);
    background: var(--surface-bg);
    border: 1px solid var(--surface-border);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.28);
}

.page-header,
.panel-card,
.summary-card,
.hero-card,
.dashboard-header {
    border-radius: var(--radius-card) !important;
}

.editor-card,
.info-card,
.shortcut-card,
.task-item,
.detail-item,
.focus-card,
.sprint-badge,
.backlog-preview {
    border-radius: var(--radius-soft) !important;
}

.field-input,
.field-textarea,
.editor-input,
.editor-select,
.editor-textarea,
.primary-button,
.ghost-button,
.view-button,
.upload-button,
.user-pill,
.primary-link {
    min-height: var(--control-height) !important;
    border-radius: var(--radius-control) !important;
}

.status-pill,
.soft-pill,
.deadline-chip,
.editor-chip,
.toggle-chip {
    border-radius: var(--radius-pill) !important;
    min-height: 2.1rem !important;
}

.editor-shell {
    display: grid;
    gap: 0.9rem;
    max-width: 1180px;
    margin: 0 auto;
}

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

.editor-header-compact {
    padding: 0.85rem 1rem;
}

.editor-header h1,
.editor-section-title {
    margin: 0;
}

.editor-header p,
.editor-muted,
.editor-card p {
    margin: 0.35rem 0 0;
    color: var(--app-muted);
}

.editor-actions,
.editor-inline-actions,
.editor-meta-row {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    flex-wrap: wrap;
}

.editor-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
    gap: 0.9rem;
    align-items: start;
}

.editor-layout-single {
    grid-template-columns: minmax(0, 1fr);
}

.editor-form,
.editor-section,
.editor-card-list,
.editor-card-grid {
    display: grid;
    gap: 0.8rem;
}

.editor-form-wide {
    padding: 1rem 1.05rem;
    gap: 0.9rem;
}

.editor-section-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 0.35rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.editor-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
}

.editor-field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.editor-field-span {
    grid-column: 1 / -1;
}

.editor-input,
.editor-textarea,
.editor-select {
    width: 100%;
    padding: 0.68rem 0.85rem;
    border: 1px solid var(--control-border);
    background: var(--control-bg);
    color: var(--control-text);
}

.editor-textarea {
    min-height: 96px;
    resize: vertical;
}

.editor-card-list {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.editor-card {
    padding: 1rem;
    background: var(--toggle-bg);
    border: 1px solid var(--toggle-border);
}

.editor-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.75rem;
    background: var(--chip-bg);
    color: var(--chip-text);
    font-size: 0.82rem;
}

.editor-summary {
    display: grid;
    gap: 0.7rem;
    align-content: start;
}

.editor-summary strong {
    display: block;
    font-size: 1.5rem;
    margin-top: 0.25rem;
}

.editor-summary-compact {
    padding: 0.9rem 0.95rem;
}

.link-button,
.primary-button,
.ghost-button,
.text-button {
    text-decoration: none;
}

.danger-button {
    color: #ff8d8d !important;
}

.danger-button:hover {
    color: #ffb0b0 !important;
}

.danger-action {
    border: none;
    border-radius: 999px;
    background: linear-gradient(135deg, #ff6b6b, #ff8f8f);
    color: #fff7f7;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.danger-action-sm {
    min-height: 2.45rem;
    padding: 0.68rem 0.95rem;
    font-size: 0.9rem;
}

.danger-action-xs {
    min-height: 2.05rem;
    padding: 0.42rem 0.78rem;
    font-size: 0.82rem;
}

.toggle-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.8rem 1rem;
    background: var(--toggle-bg);
    border: 1px solid var(--toggle-border);
    color: var(--app-text);
}

.link-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

input::placeholder,
textarea::placeholder {
    color: color-mix(in srgb, var(--app-muted) 86%, transparent);
}

.feedback-message {
    background: var(--feedback-success-bg);
    border-color: var(--feedback-success-border);
    color: var(--feedback-success-text);
}

@media (max-width: 980px) {
    .page-modal {
        width: calc(100vw - 0.75rem);
        max-height: calc(100vh - 0.75rem);
        padding: 0.85rem;
    }

    .editor-layout,
    .editor-form-grid {
        grid-template-columns: 1fr;
    }

    .editor-header {
        flex-direction: column;
    }
}