:root {
    color-scheme: light;
    --bg: #f4f6f8;
    --surface: #ffffff;
    --surface-2: #f9fafb;
    --line: #d9dee5;
    --text: #101828;
    --muted: #667085;
    --brand: #155eef;
    --brand-dark: #0f3ea8;
    --green: #157347;
    --amber: #9a5b00;
    --red: #b42318;
    --shadow: 0 12px 28px rgba(16, 24, 40, .08);
    font-family: "Aptos", "Segoe UI", system-ui, sans-serif;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    background: var(--bg);
    color: var(--text);
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
select {
    font: inherit;
}

button,
.primary-link {
    min-height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 0;
    border-radius: 6px;
    padding: 0 14px;
    background: var(--brand);
    color: white;
    cursor: pointer;
}

button:disabled {
    cursor: not-allowed;
    opacity: .55;
}

button:hover,
.primary-link:hover {
    background: var(--brand-dark);
}

.ghost-button {
    border: 1px solid var(--line);
    background: white;
    color: var(--text);
}

.ghost-button:hover {
    background: var(--surface-2);
}

.danger-button {
    border: 1px solid #f2b8b5;
    background: #fff5f4;
    color: var(--red);
}

.danger-button:hover {
    background: #ffe8e6;
}

input,
select {
    width: 100%;
    min-height: 38px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 7px 10px;
    background: white;
    color: var(--text);
}

label {
    display: grid;
    gap: 6px;
    color: var(--muted);
    font-size: 13px;
}

h1,
h2,
p {
    margin: 0;
}

h1 {
    font-size: 30px;
    line-height: 1.1;
}

h2 {
    font-size: 18px;
}

small {
    color: var(--muted);
}

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 260px minmax(0, 1fr);
}

.sidebar {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding: 18px;
    border-right: 1px solid var(--line);
    background: #101828;
    color: white;
}

.brand-block {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-block span,
.sidebar-meta span {
    display: block;
    color: rgba(255, 255, 255, .62);
    font-size: 12px;
}

.brand-mark {
    width: 38px;
    height: 38px;
    display: grid;
    place-items: center;
    border-radius: 8px;
    background: #f4c95d;
    color: #101828;
    font-weight: 800;
}

.nav-stack {
    display: grid;
    gap: 6px;
}

.nav-link {
    min-height: 38px;
    display: flex;
    align-items: center;
    border-radius: 6px;
    padding: 0 10px;
    color: rgba(255, 255, 255, .78);
}

.nav-link.active,
.nav-link:hover {
    background: rgba(255, 255, 255, .11);
    color: white;
}

.sidebar-meta {
    margin-top: auto;
    display: grid;
    gap: 3px;
    overflow-wrap: anywhere;
}

.main-surface {
    min-width: 0;
    display: grid;
    grid-template-rows: auto minmax(0, 1fr);
}

.topbar {
    min-height: 68px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 22px;
    border-bottom: 1px solid var(--line);
    background: rgba(255, 255, 255, .86);
    backdrop-filter: blur(10px);
}

.identity-block {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--muted);
}

.page-content {
    padding: 22px;
}

.page-heading,
.panel-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
    margin-bottom: 14px;
}

.command-group {
    display: inline-flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
}

.command-group.wrap {
    flex-wrap: wrap;
}

.eyebrow {
    color: var(--brand);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0;
    text-transform: uppercase;
}

.login-shell {
    min-height: calc(100vh - 120px);
    display: grid;
    place-items: center;
}

.login-panel {
    width: min(420px, 100%);
    display: grid;
    gap: 18px;
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.form-stack,
.form-grid {
    display: grid;
    gap: 12px;
}

.form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.compact {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    margin-bottom: 14px;
}

.metric-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 14px;
}

.metric-tile,
.panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--surface);
    box-shadow: var(--shadow);
}

.metric-tile {
    display: grid;
    gap: 6px;
    padding: 16px;
}

.metric-tile span {
    color: var(--muted);
    font-size: 13px;
}

.metric-tile strong {
    font-size: 28px;
}

.split-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr);
    gap: 14px;
}

.panel {
    padding: 14px;
}

.dense-list,
.data-table {
    display: grid;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.dense-row,
.table-row {
    display: grid;
    align-items: center;
    gap: 10px;
    min-height: 54px;
    padding: 10px 12px;
    border-bottom: 1px solid var(--line);
    background: white;
    color: var(--text);
    text-align: left;
}

.dense-row {
    grid-template-columns: minmax(0, 1fr) auto;
}

.table-row {
    grid-template-columns: minmax(220px, 1.4fr) minmax(130px, .8fr) minmax(130px, .8fr) auto;
    width: 100%;
}

.table-row:last-child,
.dense-row:last-child {
    border-bottom: 0;
}

.table-row:hover,
.dense-row:hover {
    background: var(--surface-2);
}

.table-row span:first-child,
.dense-row span:first-child {
    display: grid;
    gap: 2px;
}

.status-chip {
    width: fit-content;
    min-height: 24px;
    display: inline-flex;
    align-items: center;
    border-radius: 999px;
    padding: 0 9px;
    background: #eef2f6;
    color: var(--muted);
    font-size: 12px;
}

.warning-chip {
    background: #fff7e6;
    color: var(--amber);
}

.danger-chip {
    background: #fff5f4;
    color: var(--red);
}

.live-chip {
    background: #ecfdf3;
    color: var(--green);
}

.permission-workbench {
    margin-top: 14px;
}

.permission-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.permission-item {
    grid-template-columns: minmax(0, 1fr) 150px;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px;
    background: white;
}

.permission-item span {
    display: grid;
    gap: 2px;
}

.loading-block,
.success-text,
.warning-text,
.error-text {
    padding: 12px;
    border-radius: 6px;
}

.loading-block {
    border: 1px solid var(--line);
    background: white;
    color: var(--muted);
}

.success-text {
    border: 1px solid #b7e4c7;
    background: #effbf3;
    color: var(--green);
    margin-bottom: 12px;
}

.warning-text {
    border: 1px solid #ffd699;
    background: #fff7e6;
    color: var(--amber);
    margin-bottom: 12px;
}

.error-text {
    border: 1px solid #f2b8b5;
    background: #fff5f4;
    color: var(--red);
    margin-bottom: 12px;
}

.empty-state {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    min-height: 150px;
}

.empty-state p,
.empty-inline {
    color: var(--muted);
}

.empty-inline {
    padding: 12px;
    border: 1px dashed var(--line);
    border-radius: 6px;
    background: var(--surface-2);
}

.communications-workbench {
    display: grid;
    grid-template-columns: minmax(260px, .85fr) minmax(420px, 1.45fr) minmax(300px, .95fr);
    gap: 14px;
    align-items: start;
}

.communications-metrics {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
}

.compact-head {
    margin-bottom: 10px;
}

.conversation-list-panel,
.conversation-thread-panel,
.operations-panel {
    min-height: 640px;
}

.conversation-list {
    display: grid;
    gap: 8px;
    margin-top: 12px;
}

.conversation-row {
    width: 100%;
    min-height: 86px;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: start;
    gap: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: white;
    color: var(--text);
    text-align: left;
}

.conversation-row:hover,
.conversation-row.selected {
    border-color: #9db7f5;
    background: #f8fbff;
}

.conversation-main,
.conversation-meta,
.webhook-item span,
.diagnostic-item summary span {
    display: grid;
    gap: 3px;
    min-width: 0;
}

.conversation-main span,
.conversation-main small {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conversation-meta {
    justify-items: end;
}

.thread-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.inline-number {
    width: 118px;
}

.message-list {
    height: 480px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    overflow-y: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: #f7f9fc;
}

.message-row {
    display: flex;
}

.message-row.outbound {
    justify-content: flex-end;
}

.message-bubble {
    width: min(78%, 560px);
    display: grid;
    gap: 6px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: white;
}

.message-row.outbound .message-bubble {
    border-color: #b9cdfa;
    background: #eef4ff;
}

.message-media-preview,
.message-media-player {
    width: 100%;
    max-height: 280px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: white;
    object-fit: contain;
}

.media-link {
    color: var(--brand);
    font-size: 13px;
}

.message-meta,
.reaction-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.reaction-row {
    justify-content: flex-start;
    flex-wrap: wrap;
}

.composer {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 120px auto;
    gap: 10px;
    align-items: end;
    margin-top: 12px;
}

.composer textarea {
    width: 100%;
    min-height: 84px;
    resize: vertical;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 9px 10px;
    font: inherit;
}

.stacked-form {
    display: grid;
    gap: 10px;
}

.stacked-form textarea {
    width: 100%;
    min-height: 78px;
    resize: vertical;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 9px 10px;
    font: inherit;
}

.diagnostic-list,
.webhook-list {
    display: grid;
    gap: 8px;
    max-height: 275px;
    overflow-y: auto;
}

.compact-list {
    max-height: 180px;
}

.diagnostic-item,
.webhook-item {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 10px;
    background: white;
}

.diagnostic-item summary {
    cursor: pointer;
}

.diagnostic-item p {
    margin-top: 8px;
    color: var(--muted);
}

.diagnostic-item pre {
    max-height: 180px;
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px;
    background: #101828;
    color: white;
    font-size: 12px;
    white-space: pre-wrap;
}

.webhook-item {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
}

.panel-divider {
    height: 1px;
    margin: 14px 0;
    background: var(--line);
}

.instance-form {
    margin-bottom: 0;
}

.add-instance-form {
    margin-bottom: 0;
}

.phone-hint {
    min-height: 34px;
    display: flex;
    align-items: center;
    border: 1px solid #f6d7a8;
    border-radius: 8px;
    padding: 8px 10px;
    background: #fff8ed;
    color: var(--amber);
    font-size: 13px;
}

.phone-hint.valid {
    border-color: #b7e4c7;
    background: #f0fdf4;
    color: var(--green);
}

.fixed-settings-panel,
.connection-summary,
.danger-zone,
.polling-status,
.provider-details {
    display: grid;
    gap: 10px;
    margin-top: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: var(--surface-2);
}

.fixed-settings-panel strong,
.connection-summary strong,
.danger-zone strong {
    display: block;
}

.fixed-settings-panel small,
.connection-summary span,
.danger-zone small {
    color: var(--muted);
    font-size: 13px;
}

.settings-list {
    display: grid;
    gap: 5px;
    margin: 0;
    padding-left: 18px;
    color: var(--muted);
    font-size: 13px;
}

.danger-zone {
    border-color: #f2b8b5;
    background: #fffafa;
}

.polling-status {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    border-color: #b9cdfa;
    background: #eef4ff;
    color: var(--brand);
    font-size: 13px;
}

.spinner-dot {
    width: 10px;
    height: 10px;
    display: inline-block;
    border-radius: 50%;
    background: var(--brand);
    animation: pulse-dot 1s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%,
    100% {
        opacity: .35;
        transform: scale(.8);
    }

    50% {
        opacity: 1;
        transform: scale(1);
    }
}

.provider-details summary {
    cursor: pointer;
    color: var(--muted);
    font-size: 13px;
}

.command-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 8px;
    margin-top: 12px;
}

.provider-result,
.qr-panel {
    display: grid;
    gap: 10px;
    margin-top: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    background: var(--surface-2);
}

.provider-result code,
.qr-panel code {
    display: block;
    overflow-wrap: anywhere;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 8px;
    background: white;
    color: var(--text);
}

.qr-panel {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
}

.connection-qr-panel {
    background: white;
}

.qr-panel img {
    width: 220px;
    max-width: 100%;
    aspect-ratio: 1;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: white;
    object-fit: contain;
}

.json-block {
    max-height: 460px;
    overflow: auto;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px;
    background: #101828;
    color: white;
    font-size: 12px;
    white-space: pre-wrap;
}

#blazor-error-ui {
    display: none;
}

@media (max-width: 1040px) {
    .app-shell {
        grid-template-columns: 1fr;
    }

    .sidebar {
        min-height: auto;
    }

    .split-grid,
    .communications-workbench,
    .metric-grid,
    .permission-grid,
    .form-grid,
    .form-grid.compact,
    .table-row,
    .composer,
    .conversation-row,
    .webhook-item,
    .qr-panel {
        grid-template-columns: 1fr;
    }

    .conversation-list-panel,
    .conversation-thread-panel,
    .operations-panel {
        min-height: auto;
    }

    .message-list {
        height: 420px;
    }

    .message-bubble {
        width: 100%;
    }
}