[hidden] {
    display: none !important;
}

:root {
    --bg: #080b10;
    --panel: #11161e;
    --panel-soft: #151b24;
    --input: #0c1118;
    --text: #f4f7fb;
    --muted: #8f9aaa;
    --line: #28313d;
    --primary: #4d8dff;
    --primary-hover: #367bef;
    --success: #39c97b;
    --warning: #f0ab42;
    --danger: #ee6262;
    --shadow: 0 18px 55px rgba(0, 0, 0, .34);
    --radius: 16px;
}

:root[data-theme="light"] {
    --bg: #edf1f6;
    --panel: #ffffff;
    --panel-soft: #f6f8fb;
    --input: #ffffff;
    --text: #17202b;
    --muted: #667386;
    --line: #d9e0e9;
    --primary: #2563df;
    --primary-hover: #174fc4;
    --success: #16864b;
    --warning: #a76608;
    --danger: #c43c3c;
    --shadow: 0 18px 48px rgba(42, 57, 76, .12);
}

* { box-sizing: border-box; }

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at top, color-mix(in srgb, var(--primary) 10%, transparent), transparent 34rem),
        var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.45;
}

button, input, select { font: inherit; }

.app-frame {
    width: min(720px, calc(100% - 28px));
    margin: 24px auto;
}

.compact-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 14px;
    padding: 0 2px;
}

.compact-header h1 {
    margin: 0;
    font-size: 1.08rem;
    letter-spacing: -.01em;
}

.compact-header p {
    margin: 2px 0 0;
    color: var(--muted);
    font-size: .78rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.compact-status,
.badge {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    border-radius: 999px;
    white-space: nowrap;
    font-weight: 750;
}

.compact-status {
    padding: 7px 10px;
    font-size: .76rem;
}

.badge {
    padding: 5px 8px;
    font-size: .7rem;
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: currentColor;
}

.neutral {
    color: var(--muted);
    background: var(--panel-soft);
}

.success {
    color: var(--success);
    background: color-mix(in srgb, var(--success) 12%, transparent);
}

.warning {
    color: var(--warning);
    background: color-mix(in srgb, var(--warning) 12%, transparent);
}

.danger {
    color: white;
    background: var(--danger);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 5px 7px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--panel);
    color: var(--muted);
    cursor: pointer;
    box-shadow: var(--shadow);
}

.theme-icon {
    font-size: .8rem;
    line-height: 1;
}

.theme-track {
    position: relative;
    width: 30px;
    height: 16px;
    border-radius: 999px;
    background: var(--line);
}

.theme-thumb {
    position: absolute;
    top: 2px;
    left: 2px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--primary);
    transition: transform .18s ease;
}

:root[data-theme="dark"] .theme-thumb {
    transform: translateX(14px);
}

.compact-main,
dialog {
    background: color-mix(in srgb, var(--panel) 96%, transparent);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.connection-panel {
    min-height: 360px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 34px;
    text-align: center;
}


.eyebrow {
    display: block;
    margin-bottom: 3px;
    color: var(--primary);
    font-size: .65rem;
    font-weight: 850;
    letter-spacing: .13em;
    text-transform: uppercase;
}

.connection-panel h2,
.programmer-panel h2 {
    margin: 0;
}

.connection-panel h2 {
    font-size: clamp(1.45rem, 4vw, 2rem);
}

.connection-panel > p {
    margin: 9px 0 0;
    color: var(--muted);
}

.device-found {
    margin-top: 16px;
    padding: 7px 11px;
    border: 1px solid color-mix(in srgb, var(--success) 35%, transparent);
    border-radius: 999px;
    color: var(--success);
    background: color-mix(in srgb, var(--success) 10%, transparent);
    font-size: .8rem;
}

.centered {
    justify-content: center;
    margin-top: 22px;
}

.programmer-panel {
    padding: 22px;
}

.device-line,
.progress-line,
.maintenance-line,
.frequency-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;
}

.device-line {
    margin-bottom: 18px;
    padding-bottom: 14px;
    border-bottom: 1px solid var(--line);
}

.device-line strong {
    display: block;
    font-size: .96rem;
}

.frequency-row {
    align-items: flex-end;
}

.field-grow {
    min-width: 0;
    flex: 1;
}

label {
    display: block;
    margin: 0 0 6px;
    color: var(--muted);
    font-size: .74rem;
    font-weight: 750;
}

input, select {
    width: 100%;
    min-height: 42px;
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 8px 11px;
    outline: 0;
    background: var(--input);
    color: var(--text);
}

input:focus, select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 14%, transparent);
}

.mode-switch {
    display: inline-flex;
    flex: 0 0 auto;
    padding: 3px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel-soft);
}

.mode-tab {
    border: 0;
    border-radius: 7px;
    padding: 8px 10px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    font-size: .76rem;
    font-weight: 750;
}

.mode-tab.active {
    background: var(--panel);
    color: var(--text);
    box-shadow: 0 2px 8px color-mix(in srgb, var(--text) 8%, transparent);
}

.helper {
    min-height: 1em;
    margin: 5px 0 0;
    color: var(--muted);
    font-size: .72rem;
}

.center { text-align: center; }

.input-suffix {
    display: flex;
    align-items: center;
    border: 1px solid var(--line);
    border-radius: 10px;
    overflow: hidden;
    background: var(--input);
}

.input-suffix input {
    border: 0;
    border-radius: 0;
    background: transparent;
}

.input-suffix span {
    padding: 0 11px;
    color: var(--muted);
    font-size: .76rem;
    font-weight: 750;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
}

.button {
    appearance: none;
    border: 1px solid transparent;
    border-radius: 9px;
    padding: 9px 13px;
    cursor: pointer;
    font-weight: 780;
    transition: .15s ease;
}

.button:hover:not(:disabled) { transform: translateY(-1px); }
.button:disabled { opacity: .42; cursor: not-allowed; }

.button.primary {
    color: white;
    background: var(--primary);
}

.button.primary:hover:not(:disabled) { background: var(--primary-hover); }

.button.secondary {
    color: var(--text);
    background: var(--panel-soft);
    border-color: var(--line);
}

.button.danger {
    color: white;
    background: var(--danger);
}

.button.danger-outline {
    color: var(--danger);
    background: transparent;
    border-color: color-mix(in srgb, var(--danger) 45%, var(--line));
}

.button.small {
    padding: 7px 10px;
    font-size: .74rem;
}

.program-button {
    width: 100%;
    margin-top: 16px;
    padding: 11px;
}

.progress-section {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line);
}

.progress-track {
    height: 7px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--panel-soft);
}

.progress-track div {
    width: 0;
    height: 100%;
    background: var(--primary);
    transition: width .2s ease;
}

.progress-line {
    margin-top: 8px;
}

.progress-line p {
    margin: 0;
    color: var(--muted);
    font-size: .76rem;
}

.maintenance-line {
    margin-top: 18px;
    padding-top: 15px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: .72rem;
}

.error-panel {
    margin-top: 12px;
    padding: 10px;
    border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
    border-radius: 9px;
    background: color-mix(in srgb, var(--danger) 9%, transparent);
    color: var(--danger);
    font-size: .76rem;
}

.error-panel pre {
    margin: 5px 0 0;
    white-space: pre-wrap;
    font-family: "SFMono-Regular", Consolas, monospace;
}

dialog {
    width: min(460px, calc(100% - 28px));
    padding: 22px;
    color: var(--text);
}

dialog::backdrop {
    background: rgba(0, 0, 0, .68);
}

.dialog-actions {
    justify-content: flex-end;
    margin-top: 20px;
}

}

@media (max-width: 620px) {
    .app-frame {
        width: min(100% - 18px, 720px);
        margin: 10px auto;
    }

    .compact-header {
        align-items: flex-start;
        flex-direction: column;
    }

    .header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .frequency-row {
        align-items: stretch;
        flex-direction: column;
    }

    .mode-switch {
        width: 100%;
    }

    .mode-tab {
        flex: 1;
    }

    .maintenance-line {
        align-items: stretch;
        flex-direction: column;
    }
}


/* v8 connection menu and footer */
.connection-menu-wrap {
    position: relative;
}

.compact-status {
    border: 0;
    cursor: default;
}

.compact-status.is-clickable {
    cursor: pointer;
}

.compact-status.is-clickable:hover {
    filter: brightness(1.06);
}

.connection-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    z-index: 30;
    min-width: 150px;
    padding: 6px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: var(--panel);
    box-shadow: var(--shadow);
}

.connection-menu button {
    width: 100%;
    border: 0;
    border-radius: 7px;
    padding: 9px 10px;
    text-align: left;
    background: transparent;
    color: var(--danger);
    cursor: pointer;
    font-weight: 750;
}

.connection-menu button:hover {
    background: color-mix(in srgb, var(--danger) 9%, transparent);
}

.site-footer {
    width: min(720px, calc(100% - 28px));
    margin: 14px auto 22px;
    text-align: center;
    color: var(--muted);
    font-size: .7rem;
    letter-spacing: .04em;
}


/* v8 admin interface */
.admin-frame {
    width: min(1040px, calc(100% - 28px));
    margin: 24px auto 0;
}

.admin-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 16px;
}

.admin-header h1 {
    margin: 0;
    font-size: 1.35rem;
}

.admin-header p {
    margin: 4px 0 0;
    color: var(--muted);
    font-size: .82rem;
}

.admin-header-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-card {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--panel);
    box-shadow: var(--shadow);
    padding: 22px;
}

.admin-login-shell {
    min-height: 60vh;
    display: grid;
    place-items: center;
}

.login-panel {
    width: min(420px, 100%);
}

.login-panel h2 {
    margin: 0;
}

.login-panel > p {
    margin: 8px 0 18px;
    color: var(--muted);
}

.admin-form label {
    margin-top: 14px;
}

.admin-submit {
    width: 100%;
    margin-top: 18px;
}

.admin-card-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.admin-card-heading h2 {
    margin: 0;
}

.admin-table-wrap {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px 10px;
    border-bottom: 1px solid var(--line);
    text-align: left;
    vertical-align: middle;
}

.admin-table th {
    color: var(--muted);
    font-size: .68rem;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.admin-table tbody tr:last-child td {
    border-bottom: 0;
}

.admin-table tbody tr:hover {
    background: color-mix(in srgb, var(--primary) 4%, transparent);
}

.preset-name {
    font-weight: 780;
}

.preset-description {
    margin-top: 2px;
    color: var(--muted);
    font-size: .74rem;
}

.admin-table .actions {
    text-align: right;
    white-space: nowrap;
}

.admin-dialog {
    width: min(560px, calc(100% - 28px));
}

.admin-form-grid {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 0 14px;
}

.admin-form-grid .full {
    grid-column: 1 / -1;
}

.checkbox-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    color: var(--text);
}

.checkbox-row input {
    width: auto;
    min-height: auto;
}

.form-error {
    margin-top: 12px;
    padding: 9px 10px;
    border: 1px solid color-mix(in srgb, var(--danger) 40%, transparent);
    border-radius: 8px;
    background: color-mix(in srgb, var(--danger) 8%, transparent);
    color: var(--danger);
    font-size: .78rem;
    font-weight: 700;
}

@media (max-width: 700px) {
    .admin-header {
        flex-direction: column;
    }

    .admin-header-actions {
        width: 100%;
        justify-content: space-between;
    }

    .admin-card-heading {
        align-items: stretch;
        flex-direction: column;
    }

    .admin-form-grid {
        grid-template-columns: 1fr;
    }

    .admin-form-grid .full {
        grid-column: 1;
    }
}


/* v9 refinements */
.maintenance-line-end {
    justify-content: flex-end;
}

.progress-line[hidden] {
    display: none !important;
}


/* v11 manual-frequency validation */
.validation-message {
    margin: 7px 0 0;
    color: var(--danger);
    font-size: .74rem;
    font-weight: 700;
}

input[aria-invalid="true"] {
    color: var(--danger);
}

.input-suffix:has(input[aria-invalid="true"]) {
    border-color: color-mix(in srgb, var(--danger) 65%, var(--line));
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 10%, transparent);
}