:root,
html[data-theme="light"] {
    color-scheme: light;
    --cd-background: #f4f6f8;
    --cd-surface-primary: #ffffff;
    --cd-surface-secondary: #f7f8fa;
    --cd-surface-tertiary: #eef1f4;
    --cd-text-primary: #1d232b;
    --cd-text-secondary: #66707c;
    --cd-text-muted: #89929d;
    --cd-border-default: #dce1e6;
    --cd-border-strong: #c5ccd3;
    --cd-accent: #2563eb;
    --cd-accent-hover: #1d4ed8;
    --cd-accent-soft: #e8efff;
    --cd-success: #21875b;
    --cd-warning: #b7791f;
    --cd-error: #c43d4b;
    --cd-focus-ring: rgba(37, 99, 235, 0.18);
    --cd-info-background: #e8efff;
    --cd-info-border: #8eacf2;
    --cd-warning-background: #fbf4e7;
    --cd-warning-border: #d3ad70;
    --cd-error-background: #faecee;
    --cd-error-border: #df8d96;
    --cd-success-background: #e7f4ed;
    --cd-success-border: #79ba99;
    --cd-auth-glow: rgba(37, 99, 235, 0.08);
    --cd-sidebar-from: #17233a;
    --cd-sidebar-to: #111827;
    --cd-sidebar-text: #dce5f3;
    --cd-sidebar-muted: #9eacc0;
    --cd-sidebar-hover: rgba(255, 255, 255, 0.08);
    --cd-sidebar-active: rgba(72, 122, 220, 0.28);
    --cd-shadow: 0 8px 30px rgba(20, 32, 48, 0.08);
}

html[data-theme="dark"] {
    color-scheme: dark;
    --cd-background: #101318;
    --cd-surface-primary: #191d23;
    --cd-surface-secondary: #20252c;
    --cd-surface-tertiary: #292f37;
    --cd-text-primary: #edf1f5;
    --cd-text-secondary: #aeb8c4;
    --cd-text-muted: #8994a1;
    --cd-border-default: #303740;
    --cd-border-strong: #414a55;
    --cd-accent: #6595f5;
    --cd-accent-hover: #83aaf8;
    --cd-accent-soft: #1e3157;
    --cd-success: #54b98b;
    --cd-warning: #dfa94f;
    --cd-error: #ef6b78;
    --cd-focus-ring: rgba(101, 149, 245, 0.18);
    --cd-info-background: #1e3157;
    --cd-info-border: #4a6da8;
    --cd-warning-background: #30291e;
    --cd-warning-border: #816638;
    --cd-error-background: #342126;
    --cd-error-border: #874752;
    --cd-success-background: #1d3027;
    --cd-success-border: #467d63;
    --cd-auth-glow: rgba(101, 149, 245, 0.08);
    --cd-sidebar-from: #121a29;
    --cd-sidebar-to: #0d121c;
    --cd-sidebar-text: #e1e8f2;
    --cd-sidebar-muted: #96a4b7;
    --cd-sidebar-hover: rgba(255, 255, 255, 0.07);
    --cd-sidebar-active: rgba(92, 139, 230, 0.25);
    --cd-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

@media (prefers-color-scheme: dark) {
    html:not([data-theme]) {
        color-scheme: dark;
        --cd-background: #101318;
        --cd-surface-primary: #191d23;
        --cd-surface-secondary: #20252c;
        --cd-surface-tertiary: #292f37;
        --cd-text-primary: #edf1f5;
        --cd-text-secondary: #aeb8c4;
        --cd-text-muted: #8994a1;
        --cd-border-default: #303740;
        --cd-border-strong: #414a55;
        --cd-accent: #6595f5;
        --cd-accent-hover: #83aaf8;
        --cd-accent-soft: #1e3157;
        --cd-success: #54b98b;
        --cd-warning: #dfa94f;
        --cd-error: #ef6b78;
        --cd-focus-ring: rgba(101, 149, 245, 0.18);
        --cd-info-background: #1e3157;
        --cd-info-border: #4a6da8;
        --cd-warning-background: #30291e;
        --cd-warning-border: #816638;
        --cd-error-background: #342126;
        --cd-error-border: #874752;
        --cd-success-background: #1d3027;
        --cd-success-border: #467d63;
        --cd-auth-glow: rgba(101, 149, 245, 0.08);
        --cd-sidebar-from: #121a29;
        --cd-sidebar-to: #0d121c;
        --cd-sidebar-text: #e1e8f2;
        --cd-sidebar-muted: #96a4b7;
        --cd-sidebar-hover: rgba(255, 255, 255, 0.07);
        --cd-sidebar-active: rgba(92, 139, 230, 0.25);
        --cd-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    }
}

html,
body {
    min-height: 100%;
    margin: 0;
    font-family: Inter, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--cd-background);
    color: var(--cd-text-primary);
}

body {
    min-height: 100vh;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--cd-text-primary);
}

    h1:focus {
        outline: none;
    }

a,
.btn-link {
    color: var(--cd-accent);
}

    a:hover,
    .btn-link:hover {
        color: var(--cd-accent-hover);
    }

.text-muted {
    color: var(--cd-text-secondary) !important;
}

.border {
    border-color: var(--cd-border-default) !important;
}

.card {
    color: var(--cd-text-primary);
    background: var(--cd-surface-primary);
    border-color: var(--cd-border-default);
    border-radius: 12px;
    box-shadow: none;
}

.card-header,
.card-footer {
    background: var(--cd-surface-secondary);
    border-color: var(--cd-border-default);
}

.form-control,
.form-select {
    color: var(--cd-text-primary);
    background-color: var(--cd-surface-primary);
    border-color: var(--cd-border-strong);
}

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

    .form-control:disabled,
    .form-select:disabled {
        color: var(--cd-text-muted);
        background-color: var(--cd-surface-secondary);
    }

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

.form-text {
    color: var(--cd-text-secondary);
}

.form-check-input {
    background-color: var(--cd-surface-primary);
    border-color: var(--cd-border-strong);
}

    .form-check-input:checked {
        background-color: var(--cd-accent);
        border-color: var(--cd-accent);
    }

.btn-primary {
    color: #ffffff;
    background-color: var(--cd-accent);
    border-color: var(--cd-accent);
}

    .btn-primary:hover,
    .btn-primary:focus {
        color: #ffffff;
        background-color: var(--cd-accent-hover);
        border-color: var(--cd-accent-hover);
    }

.btn-outline-primary {
    color: var(--cd-accent);
    border-color: var(--cd-accent);
}

    .btn-outline-primary:hover {
        color: #ffffff;
        background-color: var(--cd-accent);
        border-color: var(--cd-accent);
    }

.btn-outline-danger {
    color: var(--cd-error);
    border-color: var(--cd-error);
}

    .btn-outline-danger:hover {
        color: #ffffff;
        background-color: var(--cd-error);
        border-color: var(--cd-error);
    }

.btn-warning {
    color: #17130b;
    background-color: var(--cd-warning);
    border-color: var(--cd-warning);
}

    .btn-warning:hover,
    .btn-warning:focus {
        color: #17130b;
        background-color: var(--cd-warning);
        border-color: var(--cd-warning);
        filter: brightness(0.96);
    }

.btn:focus-visible,
.btn-link:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.form-check-input:focus-visible {
    outline: 2px solid var(--cd-accent);
    outline-offset: 2px;
    box-shadow: none;
}

.alert {
    color: var(--cd-text-primary);
    border-radius: 10px;
}

.alert-info {
    background: var(--cd-info-background);
    border-color: var(--cd-info-border);
}

.alert-success {
    color: var(--cd-text-primary);
    background: var(--cd-success-background);
    border-color: var(--cd-success-border);
}

.alert-warning {
    background: var(--cd-warning-background);
    border-color: var(--cd-warning-border);
}

.alert-danger {
    background: var(--cd-error-background);
    border-color: var(--cd-error-border);
}

hr {
    border-color: var(--cd-border-default);
    opacity: 1;
}

.content {
    padding-top: 1.5rem;
    padding-bottom: 2rem;
}

.valid.modified:not([type=checkbox]) {
    border-color: var(--cd-success);
}

.invalid {
    border-color: var(--cd-error);
}

.validation-message {
    color: var(--cd-error);
}

.auth-container {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    box-shadow: var(--cd-shadow);
}

.font-monospace {
    word-break: break-all;
}

#blazor-error-ui {
    display: none;
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10000;
    padding: 0.75rem 1.25rem;
    color: #ffffff;
    background: var(--cd-error);
    box-shadow: 0 -2px 14px rgba(0, 0, 0, 0.2);
}

    #blazor-error-ui .dismiss {
        position: absolute;
        top: 0.65rem;
        right: 0.9rem;
        cursor: pointer;
    }

.blazor-error-boundary {
    padding: 1rem;
    color: #ffffff;
    background: var(--cd-error);
    border-radius: 8px;
}

    .blazor-error-boundary::after {
        content: "Произошла непредвиденная ошибка.";
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: auto;
}

    .loading-progress circle {
        fill: none;
        stroke: var(--cd-border-default);
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: var(--cd-accent);
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
    color: var(--cd-text-primary);
    font-weight: 600;
    text-align: center;
}

    .loading-progress-text::after {
        content: var(--blazor-load-percentage-text, "Загрузка");
    }

code {
    color: var(--cd-error);
}

@media (max-width: 640.98px) {
    .content {
        padding-top: 1rem;
    }

    .auth-container {
        padding: 1rem;
    }

    .auth-card {
        max-width: none;
    }
}

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

.send-layout {
    display: grid;
    grid-template-columns: minmax(260px, 330px) minmax(0, 1fr);
    gap: 1.25rem;
    align-items: start;
}

.send-sidebar {
    min-width: 0;
}

.send-file-info {
    padding: 0.85rem;
    background: var(--cd-surface-secondary);
    border: 1px solid var(--cd-border-default);
    border-radius: 10px;
}

.send-recipients {
    min-width: 0;
}

.send-empty {
    padding: 2rem 1rem;
    color: var(--cd-text-secondary);
    text-align: center;
}

.send-recipient {
    padding: 1rem;
    margin-top: 0.75rem;
    background: var(--cd-surface-secondary);
    border: 1px solid var(--cd-border-default);
    border-radius: 10px;
}

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

.send-link-count {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

    .send-link-count .form-control {
        width: 4.5rem;
    }

.send-client-list {
    display: grid;
    gap: 0.75rem;
    margin-top: 1rem;
}

.send-client {
    padding: 0.9rem;
    background: var(--cd-surface-primary);
    border: 1px solid var(--cd-border-default);
    border-radius: 10px;
}

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

.send-client-details code,
.send-confirmation-client code {
    display: block;
    margin-top: 0.2rem;
    color: var(--cd-text-primary);
    white-space: normal;
    overflow-wrap: anywhere;
}

.send-trust-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.send-verification {
    padding: 0.85rem;
    background: var(--cd-surface-secondary);
    border: 1px solid var(--cd-border-default);
    border-radius: 8px;
}

.send-footer {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 1rem;
}

.send-progress {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-right: auto;
    color: var(--cd-text-secondary);
}

.send-confirmation-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.55);
}

.send-confirmation {
    width: min(760px, 100%);
    max-height: calc(100vh - 2rem);
    overflow-y: auto;
    box-shadow: var(--cd-shadow);
}

.send-confirmation-section,
.send-confirmation-recipient {
    padding: 1rem;
    background: var(--cd-surface-secondary);
    border: 1px solid var(--cd-border-default);
    border-radius: 10px;
}

    .send-confirmation-recipient + .send-confirmation-recipient {
        margin-top: 0.75rem;
    }

.send-confirmation-client {
    padding: 0.8rem;
    margin-top: 0.75rem;
    background: var(--cd-surface-primary);
    border: 1px solid var(--cd-border-default);
    border-radius: 8px;
}

.send-confirmation-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

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

    .send-recipient-header,
    .send-client-header {
        align-items: flex-start;
    }
}

@media (max-width: 640.98px) {
    .page-header,
    .send-recipient-header,
    .send-client-header,
    .send-footer {
        flex-direction: column;
        align-items: stretch;
    }

    .send-link-count {
        justify-content: space-between;
    }

    .send-footer .btn {
        width: 100%;
    }

    .send-confirmation-actions {
        flex-direction: column-reverse;
    }

        .send-confirmation-actions .btn {
            width: 100%;
        }
}

.cd-break-all {
    word-break: break-all;
}

.list-group-item {
    color: var(--cd-text-primary);
    background-color: var(--cd-surface-primary);
    border-color: var(--cd-border-default);
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    color: var(--cd-text-primary);
    background-color: var(--cd-surface-secondary);
}

.list-group-item.active {
    color: var(--cd-text-primary);
    background-color: var(--cd-accent-soft);
    border-color: var(--cd-accent);
}

    .list-group-item.active .text-muted {
        color: var(--cd-text-secondary) !important;
    }

.border-danger {
    border-color: var(--cd-error) !important;
}

.text-danger {
    color: var(--cd-error) !important;
}

.input-group .form-control[readonly] {
    background-color: var(--cd-surface-secondary);
}

.cd-download-card {
    width: 100%;
    max-width: 720px;
    box-shadow: var(--cd-shadow);
}

.cd-release-notes {
    white-space: pre-wrap;
    color: var(--cd-text-primary);
    background-color: var(--cd-surface-secondary);
}

.about-page {
    width: 100%;
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.5rem 0 4rem;
}

.about-hero {
    padding: 2rem;
    background: var(--cd-surface-primary);
    border: 1px solid var(--cd-border-default);
    border-radius: 16px;
    box-shadow: var(--cd-shadow);
}

.about-hero-content {
    max-width: 820px;
}

.about-kicker {
    margin-bottom: 0.5rem;
    color: var(--cd-accent);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.about-hero h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 3.5rem);
}

.about-lead {
    margin: 1rem 0 0;
    color: var(--cd-text-secondary);
    font-size: 1.2rem;
    line-height: 1.65;
}

.about-section {
    margin-top: 2rem;
}

.about-section-header {
    margin-bottom: 1rem;
}

    .about-section-header h2 {
        margin-bottom: 0.35rem;
    }

    .about-section-header p {
        margin: 0;
        color: var(--cd-text-secondary);
    }

.about-prose {
    padding: 1.5rem;
    background: var(--cd-surface-primary);
    border: 1px solid var(--cd-border-default);
    border-radius: 14px;
}

    .about-prose p {
        margin: 0 0 1rem;
        line-height: 1.75;
    }

        .about-prose p:last-child {
            margin-bottom: 0;
        }

.about-emphasis {
    padding: 1rem 1.1rem;
    background: var(--cd-surface-secondary);
    border-left: 3px solid var(--cd-accent);
    border-radius: 8px;
}

.trust-flow {
    display: grid;
    grid-template-columns: minmax(150px, 1fr) auto minmax(150px, 1fr) auto minmax(220px, 1.35fr) auto minmax(150px, 1fr);
    gap: 0.75rem;
    align-items: stretch;
}

.trust-node {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-height: 150px;
    padding: 1rem;
    background: var(--cd-surface-primary);
    border: 1px solid var(--cd-border-default);
    border-radius: 12px;
}

.trust-node-trusted {
    border-color: var(--cd-success);
}

.trust-node-process {
    border-color: var(--cd-accent);
}

.trust-node-untrusted {
    background: var(--cd-surface-secondary);
    border-color: var(--cd-warning);
}

.trust-node-label {
    margin-bottom: 0.4rem;
    color: var(--cd-text-muted);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.trust-node-title {
    font-weight: 700;
    line-height: 1.35;
}

.trust-node-caption {
    margin-top: 0.5rem;
    color: var(--cd-text-secondary);
    font-size: 0.88rem;
    line-height: 1.45;
}

.trust-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    color: var(--cd-text-secondary);
    text-align: center;
}

    .trust-arrow span {
        color: var(--cd-accent);
        font-size: 1.6rem;
        line-height: 1;
    }

    .trust-arrow small {
        max-width: 90px;
        margin-top: 0.4rem;
        font-size: 0.72rem;
        line-height: 1.25;
    }

.about-faq {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

    .about-faq details {
        overflow: hidden;
        background: var(--cd-surface-primary);
        border: 1px solid var(--cd-border-default);
        border-radius: 12px;
    }

        .about-faq details[open] {
            border-color: var(--cd-border-strong);
        }

    .about-faq summary {
        position: relative;
        padding: 1rem 3rem 1rem 1.1rem;
        color: var(--cd-text-primary);
        font-weight: 650;
        line-height: 1.4;
        cursor: pointer;
        list-style: none;
        user-select: none;
    }

        .about-faq summary::marker {
            content: "";
        }

        .about-faq summary::after {
            content: "+";
            position: absolute;
            top: 50%;
            right: 1.1rem;
            width: 1.5rem;
            height: 1.5rem;
            transform: translateY(-50%);
            color: var(--cd-accent);
            font-size: 1.35rem;
            font-weight: 500;
            line-height: 1.35rem;
            text-align: center;
        }

    .about-faq details[open] summary::after {
        content: "−";
    }

    .about-faq summary:hover {
        background: var(--cd-surface-secondary);
    }

    .about-faq summary:focus-visible {
        outline: 2px solid var(--cd-accent);
        outline-offset: -2px;
    }

.faq-content {
    padding: 0 1.1rem 1.15rem;
    border-top: 1px solid var(--cd-border-default);
}

    .faq-content p {
        margin: 1rem 0 0;
        line-height: 1.7;
    }

    .faq-content code {
        padding: 0.1rem 0.3rem;
        color: var(--cd-text-primary);
        background: var(--cd-surface-tertiary);
        border-radius: 4px;
    }

@media (max-width: 991.98px) {
    .trust-flow {
        grid-template-columns: 1fr;
    }

    .trust-arrow {
        min-height: 46px;
    }

        .trust-arrow span {
            transform: rotate(90deg);
        }

        .trust-arrow small {
            max-width: none;
        }
}

@media (max-width: 640.98px) {
    .about-page {
        padding-top: 0.75rem;
    }

    .about-hero {
        padding: 1.25rem;
    }

    .about-prose {
        padding: 1.1rem;
    }

    .about-lead {
        font-size: 1.05rem;
    }

    .about-faq summary {
        padding: 0.9rem 2.75rem 0.9rem 1rem;
    }

    .faq-content {
        padding: 0 1rem 1rem;
    }
}