:root {
    --bg: #f4f5f7;
    --surface: #ffffff;
    --surface-2: #f8fafc;
    --border: #e2e6ec;
    --border-strong: #cbd5e1;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --accent-soft: #dbeafe;
    --accent-ring: rgba(37, 99, 235, .18);
    --danger: #ef4444;
    --danger-soft: #fee2e2;
    --warning: #f59e0b;
    --warning-soft: #fef3c7;
    --success: #10b981;
    --success-soft: #d1fae5;
    --radius: 10px;
    --radius-sm: 6px;
    --shadow: 0 10px 15px -3px rgba(15, 23, 42, .06), 0 4px 6px -4px rgba(15, 23, 42, .04);
    --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Monaco, Consolas, monospace;
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #0b1220;
        --surface: #131c2e;
        --surface-2: #1a2438;
        --border: #2a374e;
        --border-strong: #3b4a66;
        --text: #f1f5f9;
        --text-muted: #94a3b8;
        --accent: #60a5fa;
        --accent-hover: #93c5fd;
        --accent-soft: #1e3a8a;
        --accent-ring: rgba(96, 165, 250, .25);
        --danger: #f87171;
        --danger-soft: #7f1d1d;
        --warning: #fbbf24;
        --warning-soft: #78350f;
        --success: #34d399;
        --success-soft: #064e3b;
        --shadow: 0 10px 15px -3px rgba(0, 0, 0, .4), 0 4px 6px -4px rgba(0, 0, 0, .25);
        color-scheme: dark;
    }
}

:root[data-theme="dark"] {
    --bg: #0b1220;
    --surface: #131c2e;
    --surface-2: #1a2438;
    --border: #2a374e;
    --border-strong: #3b4a66;
    --text: #f1f5f9;
    --text-muted: #94a3b8;
    --accent: #60a5fa;
    --accent-hover: #93c5fd;
    --accent-soft: #1e3a8a;
    --accent-ring: rgba(96, 165, 250, .25);
    --danger: #f87171;
    --danger-soft: #7f1d1d;
    --warning: #fbbf24;
    --warning-soft: #78350f;
    --success: #34d399;
    --success-soft: #064e3b;
    --shadow: 0 10px 15px -3px rgba(0, 0, 0, .4), 0 4px 6px -4px rgba(0, 0, 0, .25);
    color-scheme: dark;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    background: var(--bg);
    color: var(--text);
    font: 400 16px/1.5 var(--font);
    -webkit-font-smoothing: antialiased;
}

.page {
    width: 100%;
    max-width: 880px;
    margin: 32px auto;
    padding: 0 20px;
}

.appbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.appbar h1 {
    margin: 0;
    color: var(--text);
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -.01em;
}

.appbar h1 .dot { color: var(--accent); }

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    padding: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    cursor: pointer;
    transition: background-color .15s, color .15s, border-color .15s;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    background: var(--surface-2);
    color: var(--text);
    border-color: var(--border-strong);
    outline: none;
}

.theme-toggle svg { width: 18px; height: 18px; display: block; }
.theme-toggle .icon-moon { display: none; }
.theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: block; }
    :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: none; }
}

.card {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin-bottom: 16px;
}

.form-title-row { margin-bottom: 16px; }

.form-title-row h1,
.form-title-row h2 {
    margin: 0;
    padding-bottom: 8px;
    color: var(--text);
    font-size: 18px;
    font-weight: 600;
    letter-spacing: -.01em;
    border-bottom: 2px solid var(--accent);
}

.auth-header { border-bottom-color: var(--warning) !important; }
.main-auth-box { border-color: var(--danger); }

.form-row { margin-bottom: 14px; }
.form-row:last-child { margin-bottom: 0; }

.form-row label > span {
    display: block;
    margin-bottom: 6px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
}

.url-row {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.url-row .url-input {
    flex: 1 1 320px;
    min-width: 0;
    font-size: 16px;
    padding: 12px 16px;
}

form input,
form textarea,
form select {
    width: 100%;
    padding: 10px 14px;
    color: var(--text);
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font: inherit;
    transition: border-color .15s, box-shadow .15s;
}

form input:focus,
form textarea:focus,
form select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-ring);
}

form input[type=checkbox],
form input[type=radio] {
    width: auto;
    margin-right: 8px;
    accent-color: var(--accent);
}

form input[type=number] { max-width: 120px; }
form textarea { min-height: 80px; resize: vertical; }

.button-submit,
.button-cancel,
.button-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 22px;
    font: 600 14px var(--font);
    text-decoration: none;
    border: 0;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color .15s, color .15s, border-color .15s;
    white-space: nowrap;
}

.button-submit {
    background-color: var(--accent);
    color: #fff;
}
.button-submit:hover, .button-submit:focus { background-color: var(--accent-hover); }

.button-cancel {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border);
    padding: 10px 16px;
}
.button-cancel:hover, .button-cancel:focus {
    color: var(--text);
    border-color: var(--border-strong);
}

.button-ghost {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--border);
    padding: 10px 16px;
}
.button-ghost:hover, .button-ghost:focus {
    color: #fff;
    background-color: var(--danger);
    border-color: var(--danger);
}

.button-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    padding: 0;
    color: var(--text-muted);
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font: 600 16px/1 var(--font);
    transition: color .15s, background-color .15s, border-color .15s;
}
.button-icon:hover, .button-icon:focus {
    color: #fff;
    background-color: var(--danger);
    border-color: var(--danger);
    outline: none;
}

p.explanation,
p.error,
p.info {
    margin: 16px 0 0;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    line-height: 1.5;
}
p.explanation { background: var(--warning-soft); color: var(--text); border-left: 3px solid var(--warning); }
p.error { background: var(--danger-soft); color: var(--text); border-left: 3px solid var(--danger); }
p.info { background: var(--success-soft); color: var(--text); border-left: 3px solid var(--success); }

.tabs-wrap { margin-top: 16px; }

.tabs-wrap > input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.tabs label {
    padding: 8px 14px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: color .15s, border-color .15s;
}

.tabs label:hover { color: var(--text); }

#tab-options:checked  ~ .tabs label[for="tab-options"],
#tab-cookies:checked  ~ .tabs label[for="tab-cookies"],
#tab-headers:checked  ~ .tabs label[for="tab-headers"],
#tab-ip:checked       ~ .tabs label[for="tab-ip"],
#tab-port:checked     ~ .tabs label[for="tab-port"],
#tab-dns:checked      ~ .tabs label[for="tab-dns"],
#tab-cert:checked     ~ .tabs label[for="tab-cert"],
#tab-cli:checked      ~ .tabs label[for="tab-cli"],
#tab-response:checked ~ .tabs label[for="tab-response"] {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-panel { display: none; }

#tab-options:checked  ~ .tab-panel[data-tab="options"],
#tab-cookies:checked  ~ .tab-panel[data-tab="cookies"],
#tab-headers:checked  ~ .tab-panel[data-tab="headers"],
#tab-ip:checked       ~ .tab-panel[data-tab="ip"],
#tab-port:checked     ~ .tab-panel[data-tab="port"],
#tab-dns:checked      ~ .tab-panel[data-tab="dns"],
#tab-cert:checked     ~ .tab-panel[data-tab="cert"],
#tab-cli:checked      ~ .tab-panel[data-tab="cli"],
#tab-response:checked ~ .tab-panel[data-tab="response"] {
    display: block;
}

.option-group {
    margin: 0 0 14px;
    padding: 8px 14px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
}

.option-group:last-child { margin-bottom: 0; }

.option-group legend {
    padding: 0 6px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    letter-spacing: .06em;
    text-transform: uppercase;
}

.prx-opt-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 16px;
}

.option label {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px 0;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
}

.option label input { margin: 0; }
.option label span { color: inherit; }

.radio-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 18px;
    padding: 4px 0;
}

.radio-row-label {
    color: var(--text-muted);
    font-size: 14px;
    margin-right: 4px;
}

.radio-row label {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text);
    font-size: 14px;
    cursor: pointer;
}

.radio-row label input { margin: 0; }
.radio-row .hint { color: var(--text-muted); font-size: 11px; margin-left: 2px; }

.seed-config {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.seed-config .tab-help { margin-bottom: 10px; }

.seed-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 10px;
}

.seed-mini {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 12px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin: 0;
}

.seed-mini-label {
    color: var(--text-muted);
    font-size: 12px;
    font-weight: 500;
}

.seed-mini input,
.seed-mini select {
    padding: 6px 10px;
    font: 13px var(--font-mono);
    width: 100%;
    max-width: none;
}

.seed-mini button {
    padding: 8px 12px;
    font: 600 13px var(--font);
    align-self: flex-start;
}

.seed-mini .hint { color: var(--text-muted); font-size: 11px; font-weight: 400; }

.kv-list {
    list-style: none;
    margin: 0 0 12px;
    padding: 0;
    max-height: 380px;
    overflow-y: auto;
}

.kv-list .kv-row {
    display: flex;
    gap: 6px;
    align-items: stretch;
    margin-bottom: 6px;
}

.kv-list .kv-card {
    flex: 1 1 auto;
    min-width: 0;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.kv-list .kv-card > summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 8px 12px;
    cursor: pointer;
    list-style: none;
    font: 13px var(--font-mono);
    color: var(--text);
}

.kv-list .kv-card > summary::-webkit-details-marker { display: none; }
.kv-list .kv-card > summary::marker { content: ''; }
.kv-list .kv-card > summary:hover { background: rgba(0,0,0,.03); }
:root[data-theme="dark"] .kv-list .kv-card > summary:hover { background: rgba(255,255,255,.04); }

.kv-list .kv-display {
    flex: 1 1 auto;
    min-width: 0;
    word-break: break-all;
}

.kv-list .kv-name    { font-weight: 600; }
.kv-list .kv-host    { color: var(--accent); }
.kv-list .kv-val     { color: var(--text-muted); }
.kv-list .kv-sep     { color: var(--text-muted); margin: 0 6px; }
.kv-list .kv-chevron {
    color: var(--text-muted);
    font-size: 11px;
    flex-shrink: 0;
    transition: transform .15s;
}
.kv-list .kv-card[open] .kv-chevron { transform: rotate(180deg); }

.kv-list .kv-edit {
    padding: 10px 12px 12px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.kv-edit-cookie {
    grid-template-columns: 1fr 1fr 1fr;
}

.kv-edit-wide { grid-column: span 2; }

.kv-edit-checks {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    padding: 4px 0;
}

.kv-card.kv-card-add {
    background: var(--surface);
    border-style: dashed;
    margin-bottom: 10px;
}

.kv-card.kv-card-add > summary { color: var(--text-muted); font: 13px var(--font); }
.kv-card.kv-card-add > summary .kv-name { font-weight: 500; }
.kv-card.kv-card-add[open] > summary { color: var(--text); }

.tab-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 12px;
}

.tab-toolbar .tab-help { flex: 1 1 auto; margin: 0; }

.toolbar-toggle {
    margin: 0;
    flex-shrink: 0;
}

.toolbar-toggle button {
    padding: 6px 12px;
    font-size: 12px;
}

@media (max-width: 600px) {
    .kv-edit-cookie { grid-template-columns: 1fr; }
    .kv-edit-wide { grid-column: span 1; }
}

.kv-list .kv-edit-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font: 13px var(--font);
}

.kv-list .kv-edit-field > span {
    color: var(--text-muted);
    font-size: 12px;
}

.kv-list .kv-edit-field input {
    padding: 6px 10px;
    font: 13px var(--font-mono);
}

.kv-list .kv-edit-check {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    gap: 6px;
    font: 13px var(--font);
    color: var(--text);
}

.kv-list .kv-edit-actions {
    grid-column: 1 / -1;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.kv-list .kv-edit-actions .button-submit { padding: 8px 14px; font-size: 13px; }

.kv-list .kv-delete {
    display: flex;
    align-items: center;
}

.kv-list .empty {
    background: transparent;
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font: 13px var(--font);
    text-align: center;
    padding: 12px;
    margin-bottom: 6px;
}

.tabs label .tab-count {
    display: inline-block;
    margin-left: 4px;
    padding: 1px 7px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 500;
    vertical-align: middle;
}

#tab-options:checked  ~ .tabs label[for="tab-options"]  .tab-count,
#tab-cookies:checked  ~ .tabs label[for="tab-cookies"]  .tab-count,
#tab-headers:checked  ~ .tabs label[for="tab-headers"]  .tab-count,
#tab-response:checked ~ .tabs label[for="tab-response"] .tab-count {
    color: var(--accent);
    border-color: var(--accent);
}

.kv-card-readonly {
    padding: 8px 12px;
    font: 13px var(--font-mono);
    color: var(--text);
    word-break: break-all;
}

.kv-row-readonly .kv-card { background: var(--surface-2); }
.kv-row-readonly .kv-card-readonly .kv-name { font-weight: 600; color: var(--accent); }
.kv-row-readonly .kv-card-readonly .kv-sep  { color: var(--text-muted); margin: 0 6px; }
.kv-row-readonly .kv-card-readonly .kv-val  { color: var(--text); }

.kv-card-overridden > summary { border-left: 3px solid var(--accent); }
.kv-card-overridden .kv-name  { color: var(--accent); }
.kv-badge {
    display: inline-block;
    margin-left: 8px;
    padding: 1px 7px;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 999px;
    font: 600 10px var(--font);
    letter-spacing: .04em;
    text-transform: uppercase;
}

.kv-add {
    display: grid;
    grid-template-columns: 1fr 1.4fr auto;
    gap: 8px;
    align-items: stretch;
    margin-bottom: 14px;
}

.kv-add input { padding: 9px 12px; font: inherit; }

.kv-add button {
    padding: 9px 18px;
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: var(--radius-sm);
    font: 600 14px var(--font);
    cursor: pointer;
    transition: background-color .15s;
}
.kv-add button:hover, .kv-add button:focus { background: var(--accent-hover); }

.tab-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.tab-help {
    margin: 0 0 12px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.5;
}

.tab-help code {
    padding: 1px 5px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 4px;
    font: 12px var(--font-mono);
}

.divider {
    margin: 18px 0;
    border: 0;
    border-top: 1px solid var(--border);
}

.section-label {
    margin: 0 0 8px;
    color: var(--text);
    font-size: 13px;
    font-weight: 600;
}

.ua-picker {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
}

.ua-picker select { padding: 9px 12px; }

.netcheck {
    display: flex;
    flex-direction: column;
}

.netcheck-solo .netcheck-fields { grid-template-columns: 1fr 140px; }

.netcheck-fields {
    display: grid;
    grid-template-columns: 1fr 140px;
    gap: 8px;
    margin-bottom: 10px;
}

.netcheck[data-netcheck="dns"] .netcheck-fields {
    grid-template-columns: 1fr 140px;
}

.netcheck-fields input,
.netcheck-fields select {
    padding: 10px 12px;
    font-size: 14px;
}

.netcheck .button-submit {
    padding: 10px 14px;
    font-size: 14px;
    align-self: flex-start;
}

.netcheck-result {
    margin: 10px 0 0 0;
    padding: 10px 12px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text);
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.45;
    max-height: 240px;
    overflow: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.netcheck-result.ok    { border-color: var(--success); background: var(--success-soft); }
.netcheck-result.err   { border-color: var(--danger);  background: var(--danger-soft);  }
.netcheck-result.warn  { border-color: var(--warning); background: var(--warning-soft); }
.netcheck-result.busy  { color: var(--text-muted); font-style: italic; }

/* Cert-result variant uses a <div> instead of <pre> so it can hold a rich
   structured layout with collapsible cert cards. */
.netcheck-result.cert-result {
    font-family: var(--font);
    font-size: 13px;
    white-space: normal;
    padding: 0;
    background: transparent;
    border: none;
    max-height: 600px;
}
.cert-top {
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface-2);
    margin-bottom: 12px;
}
.cert-top-line {
    font-family: var(--font-mono);
    font-size: 14px;
    margin-bottom: 4px;
}
.cert-top-line .cert-time { color: var(--text-muted); font-size: 12px; }
.cert-top-neg {
    font-family: var(--font-mono);
    font-size: 13px;
    margin-bottom: 8px;
    color: var(--text);
}
.tls-probes {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 12.5px;
}
.tls-probes td {
    padding: 3px 8px;
    border-top: 1px solid var(--border);
}
.tls-probes tr:first-child td { border-top: none; }
.tls-probes .ver { font-weight: 600; width: 70px; }
.tls-probes .ok td { color: var(--text); }
.tls-probes .err td { color: var(--text-muted); }
.tls-probes .ok td:nth-child(2) { color: var(--success); font-weight: 700; }
.tls-probes .err td:nth-child(2) { color: var(--danger);  font-weight: 700; }

.cert-chain-title {
    margin: 16px 0 8px;
    font: 600 13px var(--font);
    color: var(--text-muted);
    letter-spacing: .04em;
    text-transform: uppercase;
}
.cert-card {
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    background: var(--surface);
    overflow: hidden;
}
.cert-card > summary {
    padding: 10px 14px;
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text);
}
.cert-card > summary::-webkit-details-marker { display: none; }
.cert-card > summary::before {
    content: '▸';
    color: var(--text-muted);
    transition: transform .15s;
    display: inline-block;
}
.cert-card[open] > summary::before { transform: rotate(90deg); }
.cert-card[open] > summary { border-bottom: 1px solid var(--border); background: var(--surface-2); }
.cert-idx {
    display: inline-block;
    min-width: 22px;
    padding: 1px 6px;
    background: var(--accent-soft);
    color: var(--accent);
    border-radius: 4px;
    font: 600 11px var(--font-mono);
    text-align: center;
}
.cert-role {
    display: inline-block;
    padding: 1px 6px;
    background: var(--surface-2);
    color: var(--text-muted);
    border: 1px solid var(--border);
    border-radius: 999px;
    font: 600 10px var(--font);
    letter-spacing: .04em;
    text-transform: uppercase;
}
.cert-arrow { color: var(--text-muted); margin: 0 4px; }
.cert-status { font: 600 11px var(--font); margin-left: auto; padding: 1px 8px; border-radius: 999px; }
.cert-status.ok   { background: var(--success-soft); color: var(--success); }
.cert-status.warn { background: var(--warning-soft); color: var(--warning); }
.cert-status.err  { background: var(--danger-soft);  color: var(--danger);  }
.cert-body { padding: 12px 14px; }
.cert-body h5 {
    margin: 12px 0 6px;
    font: 600 11px var(--font);
    color: var(--text-muted);
    letter-spacing: .06em;
    text-transform: uppercase;
}
.cert-body h5:first-child { margin-top: 0; }
.cert-kv {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 3px 12px;
    font-size: 12.5px;
}
.cert-kv-k { color: var(--text-muted); font-family: var(--font-mono); }
.cert-kv-v { color: var(--text); font-family: var(--font-mono); word-break: break-all; }
.cert-fp { font-size: 11.5px; letter-spacing: 0; }
.cert-ext {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 4px 12px;
    font-size: 12.5px;
}
.cert-ext-k {
    color: var(--text-muted);
    font-family: var(--font-mono);
    font-size: 12px;
    padding-top: 4px;
}
.cert-ext-v pre {
    margin: 0;
    padding: 6px 10px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: 4px;
    font: 11.5px/1.5 var(--font-mono);
    color: var(--text);
    white-space: pre-wrap;
    word-break: break-all;
    overflow-x: auto;
}
.cert-raw {
    margin-top: 10px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--surface-2);
}
.cert-raw > summary {
    padding: 8px 12px;
    cursor: pointer;
    font: 600 11px var(--font);
    color: var(--text-muted);
    letter-spacing: .04em;
    text-transform: uppercase;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.cert-raw > summary::-webkit-details-marker { display: none; }
.cert-raw .button-cancel { padding: 4px 10px; font-size: 11px; margin-left: 8px; }
.cert-pem {
    margin: 0;
    padding: 10px 12px;
    border-top: 1px solid var(--border);
    background: var(--surface);
    font: 11.5px/1.5 var(--font-mono);
    color: var(--text);
    white-space: pre;
    overflow-x: auto;
    max-height: 320px;
}
@media (max-width: 600px) {
    .cert-kv  { grid-template-columns: 1fr; }
    .cert-kv-k { font-weight: 600; }
    .cert-ext { grid-template-columns: 1fr; }
}

/* IP tab — identity cards (client / server / outgoing) + request/host info */
.ipinfo-wrap {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}
.ipinfo-loading {
    grid-column: 1 / -1;
    padding: 24px;
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    border: 1px dashed var(--border);
    border-radius: var(--radius-sm);
}
.ipinfo-card {
    padding: 12px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}
.ipinfo-card-title {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 2px;
}
.ipinfo-ip {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
    word-break: break-all;
}
.ipinfo-ip .ipinfo-family {
    display: inline-block;
    margin-left: 6px;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--accent-soft);
    color: var(--accent);
    font: 600 10px var(--font);
    letter-spacing: .04em;
    vertical-align: middle;
}
.ipinfo-row {
    display: flex;
    gap: 8px;
    font-size: 13px;
    min-width: 0;
}
.ipinfo-row .k {
    flex: 0 0 78px;
    color: var(--text-muted);
}
.ipinfo-row .v {
    flex: 1 1 auto;
    color: var(--text);
    min-width: 0;
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 12.5px;
}
.ipinfo-asn .ipinfo-asn-num {
    font-weight: 600;
}
.ipinfo-private {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 999px;
    background: var(--warning-soft);
    color: var(--warning);
    font: 600 10px var(--font);
    letter-spacing: .04em;
}
.ipinfo-flag {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    background: var(--surface);
    border: 1px solid var(--border);
    font: 600 11px var(--font-mono);
    color: var(--text);
}
.ipinfo-section {
    margin-top: 14px;
    padding: 12px 14px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}
.ipinfo-section h4 {
    margin: 0 0 8px 0;
    font: 600 11px var(--font);
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text-muted);
}
.ipinfo-grid {
    display: grid;
    grid-template-columns: 160px 1fr;
    gap: 4px 12px;
    font-size: 13px;
}
.ipinfo-grid .k { color: var(--text-muted); }
.ipinfo-grid .v {
    color: var(--text);
    word-break: break-all;
    font-family: var(--font-mono);
    font-size: 12.5px;
}
.ipinfo-grid .v.empty { color: var(--text-muted); font-style: italic; font-family: var(--font); font-size: 13px; }

/* Wide grid layout for the three identity cards spans the full ip tab. */
@media (max-width: 720px) {
    .ipinfo-wrap { grid-template-columns: 1fr; }
    .ipinfo-grid { grid-template-columns: 120px 1fr; }
}

/* CLI tab — base styles (entry page). The panel-scoped equivalents live
   under #phproxy-panel so proxied-page injection doesn't leak rules to
   the host document. */
.cli-wrap > input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}
.cli-tabs {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
    flex-wrap: wrap;
}
.cli-tabs label {
    padding: 6px 12px;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    cursor: pointer;
    transition: color .15s, border-color .15s;
}
.cli-tabs label:hover { color: var(--text); }
#cli-tab-curl:checked   ~ .cli-tabs label[for="cli-tab-curl"],
#cli-tab-php:checked    ~ .cli-tabs label[for="cli-tab-php"],
#cli-tab-python:checked ~ .cli-tabs label[for="cli-tab-python"],
#cli-tab-js:checked     ~ .cli-tabs label[for="cli-tab-js"],
#cli-tab-go:checked     ~ .cli-tabs label[for="cli-tab-go"] {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.cli-panel { display: none; }
#cli-tab-curl:checked   ~ .cli-panel[data-cli="curl"],
#cli-tab-php:checked    ~ .cli-panel[data-cli="php"],
#cli-tab-python:checked ~ .cli-panel[data-cli="python"],
#cli-tab-js:checked     ~ .cli-panel[data-cli="js"],
#cli-tab-go:checked     ~ .cli-panel[data-cli="go"] {
    display: block;
}
.cli-variant            { margin-bottom: 16px; }
.cli-variant:last-child { margin-bottom: 0; }
.cli-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}
.cli-variant-label {
    color: var(--text-muted);
    font: 600 11px var(--font);
    letter-spacing: .06em;
    text-transform: uppercase;
}
.cli-variant-label code {
    background: var(--surface-2);
    padding: 1px 5px;
    border-radius: 4px;
    font: 11px var(--font-mono);
    text-transform: none;
    letter-spacing: 0;
    color: var(--text);
}
.cli-toolbar .button-cancel { padding: 6px 12px; font-size: 12px; }
.cli-snippet {
    margin: 0;
    padding: 14px 16px;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font: 12.5px/1.55 var(--font-mono);
    color: var(--text);
    overflow-x: auto;
    white-space: pre;
    -webkit-text-size-adjust: 100%;
}

.footer {
    margin: 24px 0;
    text-align: center;
    font-size: 12px;
    color: var(--text-muted);
}

.footer a {
    color: var(--text-muted);
    text-decoration: none;
}

.footer a:hover { color: var(--accent); }

@media (max-width: 880px) {
    .netcheck-row { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
    .page { margin: 16px auto; padding: 0 12px; }
    .card { padding: 16px; }
    .prx-opt-menu { grid-template-columns: 1fr; }
    .kv-add { grid-template-columns: 1fr; }
}