/* ================================================
   STANDARDS LAB — Standalone App Layout
   Self-contained, no dependency on site.css
   ================================================ */

/* ---------- RESET & VARIABLES ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

/* --- Dark theme (default) --- */
:root,
[data-theme="dark"] {
    --slab-bg: #0a0f18;
    --slab-surface: #111827;
    --slab-surface-2: rgba(255,255,255,0.03);
    --slab-surface-3: rgba(0,0,0,0.15);
    --slab-surface-4: rgba(0,0,0,0.3);
    --slab-surface-5: rgba(0,0,0,0.2);
    --slab-surface-6: rgba(0,0,0,0.12);
    --slab-surface-7: rgba(0,0,0,0.35);
    --slab-surface-code-head: rgba(0,0,0,0.25);
    --slab-border: rgba(255,255,255,0.07);
    --slab-border-hover: rgba(255,255,255,0.14);
    --slab-border-subtle: rgba(255,255,255,0.03);
    --slab-border-section: rgba(255,255,255,0.04);
    --slab-text: #e0e6ed;
    --slab-text-1: #fff;
    --slab-text-2: #9ca3af;
    --slab-text-3: #586474;
    --slab-text-4: #3a4555;
    --slab-blue: #60a5fa;
    --slab-blue-dim: rgba(96,165,250,0.12);
    --slab-blue-border: rgba(96,165,250,0.3);
    --slab-green: #059669;
    --slab-green-glow: rgba(5,150,105,0.5);
    --slab-red: #ef4444;
    --slab-red-bg: rgba(239,68,68,0.04);
    --slab-red-bg-2: rgba(239,68,68,0.06);
    --slab-red-border: rgba(239,68,68,0.2);
    --slab-red-bg-hover: rgba(239,68,68,0.12);
    --slab-amber: #d97706;
    --slab-cyan: #0ea5e9;
    --slab-purple: #7c8cf8;
    --slab-font: 'DM Sans', system-ui, sans-serif;
    --slab-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --slab-radius: 8px;
    --slab-shadow: 0 8px 32px rgba(0,0,0,0.5);
    --slab-blue-active-border: rgba(96,165,250,0.18);
    --slab-blue-cite-border: rgba(96,165,250,0.08);
    --slab-blue-std-border: rgba(96,165,250,0.15);
    --slab-green-decoded-bg: rgba(16,185,129,0.08);
    --slab-green-decoded-border: rgba(16,185,129,0.2);
    --slab-amber-bg: rgba(217,119,6,0.1);
    --slab-amber-border: rgba(217,119,6,0.25);
    --slab-cyan-border: rgba(14,165,233,0.35);
    --slab-cyan-bg: rgba(14,165,233,0.1);
    --slab-table-head: rgba(0,0,0,0.3);
    --slab-send-bg: linear-gradient(135deg, #2563eb, #3b82f6);
    --slab-send-bg-hover: linear-gradient(135deg, #1d4ed8, #2563eb);
    --slab-install-hover-bg: rgba(96,165,250,0.2);
    --slab-theme-color: #0a0f18;

    /* Layout heights */
    --header-h: 44px;
    --toolbar-h: 46px;
}

/* --- Light theme --- */
[data-theme="light"] {
    --slab-bg: #f5f7fa;
    --slab-surface: #ffffff;
    --slab-surface-2: rgba(0,0,0,0.02);
    --slab-surface-3: rgba(0,0,0,0.03);
    --slab-surface-4: rgba(0,0,0,0.04);
    --slab-surface-5: rgba(0,0,0,0.03);
    --slab-surface-6: rgba(0,0,0,0.02);
    --slab-surface-7: rgba(0,0,0,0.05);
    --slab-surface-code-head: rgba(0,0,0,0.04);
    --slab-border: rgba(0,0,0,0.1);
    --slab-border-hover: rgba(0,0,0,0.2);
    --slab-border-subtle: rgba(0,0,0,0.05);
    --slab-border-section: rgba(0,0,0,0.06);
    --slab-text: #1e293b;
    --slab-text-1: #0f172a;
    --slab-text-2: #475569;
    --slab-text-3: #94a3b8;
    --slab-text-4: #cbd5e1;
    --slab-blue: #2563eb;
    --slab-blue-dim: rgba(37,99,235,0.08);
    --slab-blue-border: rgba(37,99,235,0.25);
    --slab-green: #059669;
    --slab-green-glow: rgba(5,150,105,0.3);
    --slab-red: #dc2626;
    --slab-red-bg: rgba(220,38,38,0.04);
    --slab-red-bg-2: rgba(220,38,38,0.06);
    --slab-red-border: rgba(220,38,38,0.2);
    --slab-red-bg-hover: rgba(220,38,38,0.1);
    --slab-amber: #b45309;
    --slab-cyan: #0284c7;
    --slab-purple: #6366f1;
    --slab-shadow: 0 4px 16px rgba(0,0,0,0.08);
    --slab-blue-active-border: rgba(37,99,235,0.2);
    --slab-blue-cite-border: rgba(37,99,235,0.1);
    --slab-blue-std-border: rgba(37,99,235,0.15);
    --slab-green-decoded-bg: rgba(5,150,105,0.06);
    --slab-green-decoded-border: rgba(5,150,105,0.15);
    --slab-amber-bg: rgba(180,83,9,0.06);
    --slab-amber-border: rgba(180,83,9,0.2);
    --slab-cyan-border: rgba(2,132,199,0.25);
    --slab-cyan-bg: rgba(2,132,199,0.06);
    --slab-table-head: rgba(0,0,0,0.04);
    --slab-send-bg: linear-gradient(135deg, #2563eb, #3b82f6);
    --slab-send-bg-hover: linear-gradient(135deg, #1d4ed8, #2563eb);
    --slab-install-hover-bg: rgba(37,99,235,0.12);
    --slab-theme-color: #f5f7fa;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.slab-standalone {
    font-family: var(--slab-font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--slab-text);
    background: var(--slab-bg);
    overflow: hidden;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ---------- HEADER (44px) ---------- */
.slab-header {
    height: var(--header-h);
    display: flex;
    align-items: center;
    padding: 0 16px;
    background: var(--slab-surface);
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
    gap: 12px;
    z-index: 10;
}

.slab-header__back {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--slab-text-2);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 10px;
    border-radius: 6px;
    transition: all 0.15s ease;
    flex-shrink: 0;
}

.slab-header__back:hover {
    color: var(--slab-text);
    background: var(--slab-surface-2);
}

.slab-header__center {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    justify-content: center;
}

.slab-header__logo { flex-shrink: 0; }

.slab-header__title {
    font-size: 14px;
    font-weight: 700;
    color: var(--slab-text);
    letter-spacing: -0.01em;
    white-space: nowrap;
}

.slab-header__right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.slab-header__badge {
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    padding: 3px 10px;
    border: 1px solid var(--slab-border);
    border-radius: 100px;
    white-space: nowrap;
}

/* ---------- TOOLBAR / TABS (46px) ---------- */
.slab-toolbar {
    height: var(--toolbar-h);
    display: flex;
    align-items: stretch;
    padding: 0 16px;
    background: var(--slab-bg);
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.slab-tabs {
    display: flex;
    gap: 0;
    align-items: stretch;
}

.slab-tab {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 0 20px;
    font-size: 13px;
    font-weight: 600;
    color: var(--slab-text-3);
    border: none;
    border-bottom: 2px solid transparent;
    background: none;
    cursor: pointer;
    font-family: var(--slab-font);
    transition: all 0.15s ease;
    white-space: nowrap;
}

.slab-tab:hover { color: var(--slab-text-2); }

.slab-tab--active {
    color: var(--slab-blue);
    border-bottom-color: var(--slab-blue);
}

.slab-tab svg { width: 16px; height: 16px; }

/* ---------- CONTENT (fills remaining) ---------- */
.slab-content {
    flex: 1;
    overflow: hidden;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
}

.slab-panel {
    display: none;
    flex: 1;
    min-height: 0;
    flex-direction: column;
}

.slab-panel--active {
    display: flex;
}

/* ---------- UDS: STATUS BAR ---------- */
.uds-status {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 8px 14px;
    background: var(--slab-surface-2);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    margin-bottom: 12px;
    font-size: 12px;
    color: var(--slab-text-2);
    flex-shrink: 0;
    flex-wrap: wrap;
}

.uds-status__dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    display: inline-block;
}

.uds-status__dot--green {
    background: var(--slab-green);
    box-shadow: 0 0 6px var(--slab-green-glow);
}

.uds-status__item {
    display: flex;
    align-items: center;
    gap: 5px;
}

.uds-status__item strong {
    font-family: var(--slab-mono);
    font-weight: 600;
    font-size: 12px;
}

#uds-session { color: var(--slab-text-2); }
.uds-status--locked { color: var(--slab-red) !important; }
.uds-status--unlocked { color: var(--slab-green) !important; }
.uds-status__sep { color: var(--slab-text-4); font-size: 11px; }

.uds-status__reset {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 3px 12px;
    font-size: 11px;
    color: var(--slab-red);
    border: 1px solid var(--slab-red-border);
    border-radius: 4px;
    background: var(--slab-red-bg-2);
    cursor: pointer;
    font-family: var(--slab-mono);
    transition: all 0.15s ease;
}

.uds-status__reset:hover { background: var(--slab-red-bg-hover); }

/* ---------- UDS: LAYOUT ---------- */
.uds-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 12px;
    flex: 1;
    min-height: 0;
}

/* ---------- UDS: SERVICE LIST ---------- */
.uds-services {
    display: flex;
    flex-direction: column;
    min-height: 0;
}

.uds-filter {
    display: flex;
    gap: 3px;
    flex-wrap: wrap;
    margin-bottom: 8px;
    flex-shrink: 0;
}

.uds-filter__btn {
    padding: 3px 10px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    transition: all 0.15s ease;
}

.uds-filter__btn:hover { color: var(--slab-text-2); border-color: var(--slab-border-hover); }

.uds-filter__btn--active {
    color: var(--slab-blue);
    border-color: var(--slab-blue-border);
    background: var(--slab-blue-dim);
}

.uds-service-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.uds-svc {
    padding: 8px 10px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
}

.uds-svc:hover { background: var(--slab-surface-2); }

.uds-svc--active {
    background: var(--slab-blue-dim) !important;
    border-color: var(--slab-blue-active-border);
}

.uds-svc__sid {
    font-family: var(--slab-mono);
    font-size: 13px;
    font-weight: 600;
    color: var(--slab-blue);
}

.uds-svc__cat {
    float: right;
    font-family: var(--slab-mono);
    font-size: 10px;
    color: var(--slab-text-4);
    background: var(--slab-surface-2);
    padding: 1px 7px;
    border-radius: 3px;
}

.uds-svc__name {
    font-size: 12px;
    color: var(--slab-text-2);
    margin-top: 1px;
}

/* ---------- UDS: RIGHT PANEL ---------- */
.uds-right {
    display: flex;
    flex-direction: column;
    gap: 10px;
    min-height: 0;
}

/* Builder */
.uds-builder {
    background: var(--slab-surface-2);
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    padding: 14px;
    flex-shrink: 0;
}

.uds-builder__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.uds-builder__name {
    font-size: 14px;
    font-weight: 600;
    color: var(--slab-text-1);
}

.uds-builder__sid {
    font-family: var(--slab-mono);
    font-size: 12px;
    color: var(--slab-blue);
}

.uds-builder__section { margin-bottom: 10px; }

.uds-builder__label {
    display: block;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    margin-bottom: 6px;
    letter-spacing: 0.06em;
}

.uds-builder__options {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
}

.uds-opt {
    padding: 4px 10px;
    font-size: 11px;
    font-family: var(--slab-mono);
    border-radius: 4px;
    cursor: pointer;
    border: 1px solid var(--slab-border);
    background: transparent;
    color: var(--slab-text-2);
    transition: all 0.12s ease;
}

.uds-opt:hover { border-color: var(--slab-border-hover); color: var(--slab-text); }

.uds-opt--active {
    color: var(--slab-blue);
    border-color: var(--slab-blue-border);
    background: var(--slab-blue-dim);
}

.uds-opt--did.uds-opt--active {
    color: var(--slab-cyan);
    border-color: var(--slab-cyan-border);
    background: var(--slab-cyan-bg);
}

.uds-opt__val { opacity: 0.5; margin-right: 3px; }
.uds-opt__dim { opacity: 0.4; }

.uds-builder__hint {
    font-size: 11px;
    color: var(--slab-text-4);
    font-style: italic;
    margin-top: 4px;
}

.uds-builder__input {
    width: 100%;
    background: var(--slab-surface-7);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    padding: 6px 10px;
    color: var(--slab-text-1);
    font-family: var(--slab-mono);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s ease;
}

.uds-builder__input:focus { border-color: var(--slab-blue-border); }

.uds-builder__footer {
    display: flex;
    align-items: center;
    gap: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--slab-border);
    margin-top: 2px;
}

.uds-builder__preview { flex: 1; }

.uds-builder__preview-label {
    display: block;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    margin-bottom: 2px;
}

.uds-builder__preview-bytes {
    font-family: var(--slab-mono);
    font-size: 14px;
    font-weight: 600;
    color: var(--slab-blue);
    letter-spacing: 0.05em;
}

/* Send button */
.slab-btn-send {
    display: flex;
    align-items: center;
    gap: 7px;
    padding: 8px 24px;
    background: var(--slab-send-bg);
    border: none;
    border-radius: 6px;
    color: #fff;
    font-family: var(--slab-mono);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.06em;
    cursor: pointer;
    transition: all 0.15s ease;
}

.slab-btn-send:hover { background: var(--slab-send-bg-hover); }

.slab-btn-send--sending {
    opacity: 0.5;
    pointer-events: none;
}

/* ---------- UDS: LOG ---------- */
.uds-log {
    background: var(--slab-surface-5);
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.uds-log__head {
    display: flex;
    justify-content: space-between;
    padding: 8px 14px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.uds-log__body {
    flex: 1;
    overflow-y: auto;
    padding: 6px;
}

.uds-log__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 40px 20px;
    color: var(--slab-text-4);
    text-align: center;
}

.uds-log__empty p { font-size: 12px; }
.uds-log__empty small { font-size: 11px; opacity: 0.6; }

/* Log entries */
.uds-entry {
    padding: 5px 10px;
    border-radius: 4px;
    margin-bottom: 1px;
    border-left: 3px solid transparent;
    font-family: var(--slab-mono);
    font-size: 11px;
}

.uds-entry--tx { border-left-color: var(--slab-blue); }
.uds-entry--rx-pos { border-left-color: var(--slab-green); }
.uds-entry--rx-neg { border-left-color: var(--slab-red); background: var(--slab-red-bg); }

.uds-entry__row { display: flex; align-items: center; gap: 8px; }
.uds-entry__time { color: var(--slab-text-4); font-size: 10px; flex-shrink: 0; }
.uds-entry__dir { font-weight: 700; font-size: 10px; width: 20px; flex-shrink: 0; }
.uds-entry__dir--tx { color: var(--slab-blue); }
.uds-entry__dir--rx { color: var(--slab-green); }
.uds-entry__dir--neg { color: var(--slab-red); }
.uds-entry__bytes { color: var(--slab-text); letter-spacing: 0.04em; word-break: break-all; }

.uds-entry__detail {
    margin-left: 80px;
    font-size: 10px;
    color: var(--slab-text-3);
    margin-top: 1px;
    font-family: var(--slab-font);
}

.uds-entry--rx-neg .uds-entry__detail { color: var(--slab-red); }

.uds-entry__decoded {
    margin-left: 80px;
    margin-top: 4px;
    padding: 6px 10px;
    background: var(--slab-blue-dim);
    border: 1px solid var(--slab-blue-cite-border);
    border-radius: 4px;
    font-family: var(--slab-font);
}

.uds-entry__decoded-label { font-size: 10px; color: var(--slab-text-4); font-family: var(--slab-mono); }
.uds-entry__decoded-value { font-size: 12px; color: var(--slab-blue); font-weight: 500; margin-top: 1px; }

.uds-dtc { display: flex; align-items: center; gap: 8px; margin-top: 3px; }
.uds-dtc:first-child { margin-top: 0; }
.uds-dtc__code { font-family: var(--slab-mono); font-weight: 700; color: var(--slab-amber); font-size: 12px; }
.uds-dtc__desc { font-size: 11px; color: var(--slab-text-2); }
.uds-dtc__status { font-size: 10px; color: var(--slab-text-4); font-family: var(--slab-mono); }

/* ---------- ODX REFERENCE LAYOUT ---------- */
.odx-ref {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0;
    flex: 1;
    min-height: 0;
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
    background: var(--slab-surface-3);
}

/* Nav sidebar */
.odx-nav {
    display: flex;
    flex-direction: column;
    background: var(--slab-surface);
    border-right: 1px solid var(--slab-border);
    overflow-y: auto;
    padding: 0;
}

.odx-nav__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--slab-text-2);
    font-family: var(--slab-mono);
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.odx-nav__item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--slab-text-3);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--slab-font);
    text-align: left;
    transition: all 0.12s ease;
    border-left: 2px solid transparent;
}

.odx-nav__item:hover {
    color: var(--slab-text-2);
    background: var(--slab-surface-2);
}

.odx-nav__item--active {
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-left-color: var(--slab-blue);
}

.odx-nav__footer {
    margin-top: auto;
    padding: 12px 16px;
    display: flex;
    gap: 8px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    border-top: 1px solid var(--slab-border);
    flex-shrink: 0;
}

/* Article area */
.odx-article {
    overflow-y: auto;
    padding: 0;
}

.odx-article__inner {
    padding: 24px 32px;
    max-width: 900px;
}

.odx-art__header {
    margin-bottom: 28px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--slab-border);
}

.odx-art__title {
    font-size: 22px;
    font-weight: 700;
    color: var(--slab-text-1);
    letter-spacing: -0.02em;
    margin-bottom: 6px;
}

.odx-art__standard {
    display: inline-block;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    padding: 2px 10px;
    border-radius: 100px;
    border: 1px solid var(--slab-blue-std-border);
}

.odx-art__section {
    margin-bottom: 28px;
}

.odx-art__heading {
    font-size: 15px;
    font-weight: 700;
    color: var(--slab-text);
    margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--slab-border-section);
}

.odx-art__text {
    font-size: 13px;
    line-height: 1.7;
    color: var(--slab-text-2);
    margin-bottom: 10px;
}

.odx-art__list {
    margin: 8px 0 12px 20px;
    font-size: 13px;
    line-height: 1.7;
    color: var(--slab-text-2);
}

.odx-art__list li {
    margin-bottom: 3px;
    padding-left: 4px;
}

.odx-art__list li::marker {
    color: var(--slab-text-4);
}

/* Article tables */
.odx-art__table-wrap {
    overflow-x: auto;
    margin: 10px 0 14px;
    border-radius: 6px;
    border: 1px solid var(--slab-border);
}

.odx-art__table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.odx-art__table th {
    padding: 8px 12px;
    text-align: left;
    font-family: var(--slab-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--slab-text-3);
    background: var(--slab-table-head);
    border-bottom: 1px solid var(--slab-border);
    letter-spacing: 0.04em;
    white-space: nowrap;
}

.odx-art__table td {
    padding: 7px 12px;
    color: var(--slab-text-2);
    border-bottom: 1px solid var(--slab-border-subtle);
    line-height: 1.5;
}

.odx-art__table tr:last-child td {
    border-bottom: none;
}

.odx-art__table tr:hover td {
    background: var(--slab-surface-2);
}

.odx-art__table td:first-child {
    font-family: var(--slab-mono);
    font-weight: 600;
    color: var(--slab-blue);
    white-space: nowrap;
    font-size: 11px;
}

/* Article code blocks */
.odx-art__code {
    margin: 12px 0 16px;
    border-radius: 6px;
    border: 1px solid var(--slab-border);
    overflow: hidden;
    background: var(--slab-surface-4);
}

.odx-art__code-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 14px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    background: var(--slab-surface-code-head);
    border-bottom: 1px solid var(--slab-border);
}

.odx-art__code-copy {
    padding: 2px 10px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    transition: all 0.12s ease;
}

.odx-art__code-copy:hover {
    color: var(--slab-text);
    border-color: var(--slab-border-hover);
}

.odx-art__pre {
    padding: 14px;
    overflow-x: auto;
    font-family: var(--slab-mono);
    font-size: 11px;
    line-height: 1.6;
    color: var(--slab-text-2);
    white-space: pre;
    tab-size: 2;
}

/* Article diagrams */
.odx-art__diagram {
    margin: 14px 0 18px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
}

.odx-art__layer {
    padding: 12px 16px;
    border-left: 3px solid var(--layer-color, var(--slab-blue));
    background: var(--slab-surface-3);
    border-bottom: 1px solid var(--slab-border);
    transition: background 0.12s ease;
}

.odx-art__layer:hover {
    background: var(--slab-surface-2);
}

.odx-art__layer:first-child {
    border-radius: 6px 6px 0 0;
}

.odx-art__layer:last-child {
    border-radius: 0 0 6px 6px;
    border-bottom: none;
}

.odx-art__layer-name {
    font-family: var(--slab-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--layer-color, var(--slab-blue));
    letter-spacing: 0.04em;
    margin-bottom: 3px;
}

.odx-art__layer-desc {
    font-size: 12px;
    color: var(--slab-text-2);
    line-height: 1.5;
}

.odx-art__layer-params {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    margin-top: 4px;
}

.odx-art__layer-arrow {
    text-align: center;
    font-size: 10px;
    color: var(--slab-text-4);
    padding: 2px 0;
    line-height: 1;
}

/* ODX Tree within reference */
.odx-tree-toolbar {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.odx-tree-toolbar__hint {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--slab-text-4);
    white-space: nowrap;
}

/* ---------- NRC REFERENCE (expanded) ---------- */
.nrc-item--expanded {
    /* grid layout handles columns */
}

.nrc-item__header {
    display: contents;
}

.nrc-item__desc {
    font-size: 12px;
    color: var(--slab-text-3);
    line-height: 1.5;
    grid-column: 2;
    margin-top: 2px;
}

/* ---------- UDS CATALOG ---------- */
.catalog-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: 0;
    flex: 1;
    min-height: 0;
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
    background: var(--slab-surface-3);
}

.catalog-nav {
    display: flex;
    flex-direction: column;
    background: var(--slab-surface);
    border-right: 1px solid var(--slab-border);
    overflow-y: auto;
    padding: 0;
}

.catalog-nav__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--slab-text-2);
    font-family: var(--slab-mono);
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.catalog-nav__group {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    padding: 10px 16px 4px;
    letter-spacing: 0.06em;
}

.catalog-nav__item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 7px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--slab-text-3);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--slab-font);
    text-align: left;
    transition: all 0.12s ease;
    border-left: 2px solid transparent;
}

.catalog-nav__item:hover {
    color: var(--slab-text-2);
    background: var(--slab-surface-2);
}

.catalog-nav__item--active {
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-left-color: var(--slab-blue);
}

.catalog-nav__sid {
    font-family: var(--slab-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--slab-blue);
    flex-shrink: 0;
    width: 30px;
}

.catalog-article {
    overflow-y: auto;
}

.catalog-article__inner {
    padding: 24px 32px;
    max-width: 900px;
}

/* Reuse ODX article styles for catalog content */
.catalog-art__header { margin-bottom: 28px; padding-bottom: 16px; border-bottom: 1px solid var(--slab-border); }
.catalog-art__title { font-size: 22px; font-weight: 700; color: var(--slab-text-1); letter-spacing: -0.02em; margin-bottom: 4px; }
.catalog-art__sid { font-family: var(--slab-mono); font-size: 14px; color: var(--slab-blue); margin-bottom: 6px; }
.catalog-art__standard { display: inline-block; font-size: 11px; font-family: var(--slab-mono); color: var(--slab-blue); background: var(--slab-blue-dim); padding: 2px 10px; border-radius: 100px; border: 1px solid var(--slab-blue-std-border); }
.catalog-art__section { margin-bottom: 24px; }
.catalog-art__heading { font-size: 15px; font-weight: 700; color: var(--slab-text); margin-bottom: 10px; padding-bottom: 6px; border-bottom: 1px solid var(--slab-border-section); }
.catalog-art__text { font-size: 13px; line-height: 1.7; color: var(--slab-text-2); margin-bottom: 10px; }
.catalog-art__list { margin: 8px 0 12px 20px; font-size: 13px; line-height: 1.7; color: var(--slab-text-2); }
.catalog-art__list li { margin-bottom: 3px; padding-left: 4px; }
.catalog-art__list li::marker { color: var(--slab-text-4); }

/* ---------- OBD-II PIDs ---------- */
.obdii-toolbar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
    flex-shrink: 0;
    flex-wrap: wrap;
}

.obdii-search {
    flex: 1;
    min-width: 200px;
    background: var(--slab-surface-4);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    padding: 8px 14px;
    color: var(--slab-text-1);
    font-family: var(--slab-mono);
    font-size: 13px;
    outline: none;
}

.obdii-search:focus { border-color: var(--slab-blue-border); }

.obdii-mode-filter {
    display: flex;
    gap: 3px;
}

.obdii-mode-btn {
    padding: 5px 12px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.obdii-mode-btn:hover { color: var(--slab-text-2); border-color: var(--slab-border-hover); }

.obdii-mode-btn--active {
    color: var(--slab-blue);
    border-color: var(--slab-blue-border);
    background: var(--slab-blue-dim);
}

.obdii-content {
    flex: 1;
    overflow-y: auto;
}

.obdii-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
    gap: 4px;
    align-content: start;
}

.obdii-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 10px 14px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border-subtle);
    border-radius: 4px;
    transition: border-color 0.12s ease;
}

.obdii-item:hover { border-color: var(--slab-border); }

.obdii-item__header {
    display: flex;
    align-items: center;
    gap: 10px;
}

.obdii-item__pid {
    font-family: var(--slab-mono);
    font-weight: 700;
    font-size: 12px;
    color: var(--slab-cyan);
    flex-shrink: 0;
}

.obdii-item__name {
    font-size: 12px;
    color: var(--slab-text-2);
    font-weight: 500;
}

.obdii-item__meta {
    display: flex;
    gap: 12px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
}

.obdii-item__formula {
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    padding: 4px 8px;
    background: var(--slab-surface-5);
    border-radius: 3px;
}

/* OBD Modes table */
.obdii-modes-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.obdii-modes-table th {
    padding: 8px 12px;
    text-align: left;
    font-family: var(--slab-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--slab-text-3);
    background: var(--slab-table-head);
    border-bottom: 1px solid var(--slab-border);
}

.obdii-modes-table td {
    padding: 7px 12px;
    color: var(--slab-text-2);
    border-bottom: 1px solid var(--slab-border-subtle);
}

.obdii-modes-table td:first-child {
    font-family: var(--slab-mono);
    font-weight: 600;
    color: var(--slab-cyan);
    white-space: nowrap;
}

.obdii-modes-table tr:hover td { background: var(--slab-surface-2); }

/* ---------- ISO-TP REFERENCE ---------- */
.isotp-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 0;
    flex: 1;
    min-height: 0;
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
    background: var(--slab-surface-3);
}

.isotp-nav {
    display: flex;
    flex-direction: column;
    background: var(--slab-surface);
    border-right: 1px solid var(--slab-border);
    overflow-y: auto;
    padding: 0;
}

.isotp-nav__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--slab-text-2);
    font-family: var(--slab-mono);
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.isotp-nav__item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--slab-text-3);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--slab-font);
    text-align: left;
    transition: all 0.12s ease;
    border-left: 2px solid transparent;
}

.isotp-nav__item:hover {
    color: var(--slab-text-2);
    background: var(--slab-surface-2);
}

.isotp-nav__item--active {
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-left-color: var(--slab-blue);
}

.isotp-article {
    overflow-y: auto;
}

.isotp-article__inner {
    padding: 24px 32px;
    max-width: 900px;
}

/* ---------- SHARED SCROLLBARS (additions) ---------- */
.odx-nav::-webkit-scrollbar,
.odx-article::-webkit-scrollbar,
.catalog-nav::-webkit-scrollbar,
.catalog-article::-webkit-scrollbar,
.isotp-nav::-webkit-scrollbar,
.isotp-article::-webkit-scrollbar,
.obdii-content::-webkit-scrollbar { width: 5px; }

.odx-nav::-webkit-scrollbar-track,
.odx-article::-webkit-scrollbar-track,
.catalog-nav::-webkit-scrollbar-track,
.catalog-article::-webkit-scrollbar-track,
.isotp-nav::-webkit-scrollbar-track,
.isotp-article::-webkit-scrollbar-track,
.obdii-content::-webkit-scrollbar-track { background: transparent; }

.odx-nav::-webkit-scrollbar-thumb,
.odx-article::-webkit-scrollbar-thumb,
.catalog-nav::-webkit-scrollbar-thumb,
.catalog-article::-webkit-scrollbar-thumb,
.isotp-nav::-webkit-scrollbar-thumb,
.isotp-article::-webkit-scrollbar-thumb,
.obdii-content::-webkit-scrollbar-thumb { background: var(--slab-text-4); border-radius: 3px; }

/* ---------- RESPONSIVE ADDITIONS ---------- */
@media (max-width: 900px) {
    .odx-ref { grid-template-columns: 1fr; }
    .odx-nav { display: none; }
    .catalog-layout { grid-template-columns: 1fr; }
    .catalog-nav { display: none; }
    .isotp-layout { grid-template-columns: 1fr; }
    .isotp-nav { display: none; }
    .odx-article__inner { padding: 16px; }
    .catalog-article__inner { padding: 16px; }
    .isotp-article__inner { padding: 16px; }
    .obdii-grid { grid-template-columns: 1fr; }
}

/* ---------- ODX TREE (old / shared) ---------- */
.odx-toolbar {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 10px;
    flex-shrink: 0;
}

.odx-search {
    flex: 1;
    background: var(--slab-surface-4);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    padding: 8px 14px;
    color: var(--slab-text-1);
    font-family: var(--slab-mono);
    font-size: 13px;
    outline: none;
}

.odx-search:focus { border-color: var(--slab-blue-border); }

.odx-toolbar__hint {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 12px;
    color: var(--slab-text-4);
    white-space: nowrap;
}

.odx-tree {
    flex: 1;
    overflow-y: auto;
    background: var(--slab-surface-3);
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    padding: 12px;
}

/* ODX Node */
.odx-node__row {
    display: flex;
    align-items: flex-start;
    gap: 6px;
    padding: 4px 8px;
    border-radius: 4px;
    border-left: 2px solid transparent;
    transition: background 0.12s ease;
    cursor: default;
}

.odx-node__row--expandable { cursor: pointer; }
.odx-node__row:hover { background: var(--slab-surface-2); }
.odx-node__row--match { background: var(--slab-blue-dim); border-left-color: var(--slab-blue); }


.odx-node__arrow {
    width: 14px; flex-shrink: 0;
    font-size: 9px;
    color: var(--slab-text-4);
    margin-top: 4px;
    transition: transform 0.2s ease;
    font-family: var(--slab-mono);
    user-select: none;
}

.odx-node__arrow--open { transform: rotate(90deg); }
.odx-node__spacer { width: 14px; flex-shrink: 0; }
.odx-node__content { flex: 1; min-width: 0; }
.odx-node__head { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }

.odx-node__tag {
    font-family: var(--slab-mono);
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
}

.odx-node__attr { font-family: var(--slab-mono); font-size: 10px; color: var(--slab-amber); opacity: 0.8; }
.odx-node__value { font-family: var(--slab-mono); font-size: 10px; padding: 1px 6px; border-radius: 3px; background: var(--slab-blue-dim); color: var(--slab-blue); }
.odx-node__desc { font-size: 11px; color: var(--slab-text-3); margin-top: 1px; line-height: 1.4; }
.odx-node__children { margin-left: 16px; border-left: 1px solid var(--slab-border-section); }

/* Depth colors - dark */
.odx-depth-0 { color: #60a5fa; }
.odx-depth-1 { color: #0ea5e9; }
.odx-depth-2 { color: #7c8cf8; }
.odx-depth-3 { color: #d97706; }
.odx-depth-4 { color: #e879f9; }
.odx-depth-5 { color: #f87171; }
.odx-depth-6 { color: #facc15; }
.odx-depth-7 { color: #34d399; }

/* Depth colors - light (higher contrast) */
[data-theme="light"] .odx-depth-0 { color: #2563eb; }
[data-theme="light"] .odx-depth-1 { color: #0284c7; }
[data-theme="light"] .odx-depth-2 { color: #4f46e5; }
[data-theme="light"] .odx-depth-3 { color: #b45309; }
[data-theme="light"] .odx-depth-4 { color: #a21caf; }
[data-theme="light"] .odx-depth-5 { color: #dc2626; }
[data-theme="light"] .odx-depth-6 { color: #a16207; }
[data-theme="light"] .odx-depth-7 { color: #059669; }

/* ---------- NRC REFERENCE ---------- */
.nrc-toolbar { margin-bottom: 10px; flex-shrink: 0; }

.nrc-search {
    width: 100%;
    background: var(--slab-surface-4);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    padding: 8px 14px;
    color: var(--slab-text-1);
    font-family: var(--slab-mono);
    font-size: 13px;
    outline: none;
}

.nrc-search:focus { border-color: var(--slab-blue-border); }

.nrc-grid {
    display: flex;
    flex-direction: column;
    gap: 1px;
    flex: 1;
    overflow-y: auto;
    align-content: start;
}

.nrc-item {
    display: grid;
    grid-template-columns: 54px 1fr;
    gap: 0 12px;
    padding: 10px 16px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border-subtle);
    border-radius: 4px;
    transition: border-color 0.12s ease;
}

.nrc-item:hover { border-color: var(--slab-border); background: var(--slab-surface-2); }
.nrc-item__code { font-family: var(--slab-mono); font-weight: 700; font-size: 13px; color: var(--slab-red); flex-shrink: 0; grid-row: 1 / 3; align-self: start; padding-top: 1px; }
.nrc-item__code--pending { color: var(--slab-amber); }
.nrc-item__name { font-size: 13px; color: var(--slab-text); font-weight: 600; }

/* ---------- SCROLLBARS ---------- */
.uds-log__body::-webkit-scrollbar,
.uds-service-list::-webkit-scrollbar,
.odx-tree::-webkit-scrollbar,
.nrc-grid::-webkit-scrollbar { width: 5px; }

.uds-log__body::-webkit-scrollbar-track,
.uds-service-list::-webkit-scrollbar-track,
.odx-tree::-webkit-scrollbar-track,
.nrc-grid::-webkit-scrollbar-track { background: transparent; }

.uds-log__body::-webkit-scrollbar-thumb,
.uds-service-list::-webkit-scrollbar-thumb,
.odx-tree::-webkit-scrollbar-thumb,
.nrc-grid::-webkit-scrollbar-thumb { background: var(--slab-text-4); border-radius: 3px; }

/* ---------- PWA ELEMENTS ---------- */
.slab-install {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 14px;
    font-size: 12px;
    font-family: var(--slab-font);
    font-weight: 600;
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border: 1px solid var(--slab-blue-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-left: 10px;
}

.slab-install:hover {
    background: var(--slab-install-hover-bg);
}

.slab-offline {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-amber);
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
    border-radius: 100px;
    margin-left: 10px;
}

.slab-update-banner {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 18px;
    background: var(--slab-surface);
    border: 1px solid var(--slab-blue-border);
    border-radius: 10px;
    box-shadow: var(--slab-shadow);
    z-index: 100;
    font-size: 13px;
    color: var(--slab-text);
    animation: slab-slide-up 0.3s ease;
}

.slab-update-banner button {
    padding: 4px 14px;
    border-radius: 5px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    font-family: var(--slab-font);
    transition: all 0.15s ease;
}

.slab-update-banner button:first-of-type {
    background: var(--slab-blue);
    color: #fff;
}

.slab-update-banner button:first-of-type:hover {
    background: #3b82f6;
}

.slab-update-banner button:last-of-type {
    background: transparent;
    color: var(--slab-text-3);
}

@keyframes slab-slide-up {
    from { transform: translateX(-50%) translateY(20px); opacity: 0; }
    to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* ---------- RESPONSIVE ---------- */
/* ── ISO-TP Content Elements ── */
.isotp-sequence { display:flex; flex-direction:column; gap:0; margin:10px 0; }
.isotp-step { display:grid; grid-template-columns:80px 140px 1fr; align-items:center; gap:8px; padding:7px 10px; border-left:3px solid var(--slab-text-4); background:var(--slab-surface-6); font-size:12px; }
.isotp-step + .isotp-step { margin-top:1px; }
.isotp-step__sender { font-weight:700; font-family:var(--slab-mono); font-size:11px; text-transform:uppercase; letter-spacing:.5px; }
.isotp-step__frame { font-family:var(--slab-mono); font-weight:600; color:var(--slab-text-1); font-size:12px; }
.isotp-step__desc { color:var(--slab-text-3); font-size:11.5px; }

.isotp-param { background:var(--slab-surface-6); border:1px solid var(--slab-border); border-radius:8px; padding:12px 14px; margin-bottom:10px; }
.isotp-param__head { display:flex; align-items:center; gap:10px; flex-wrap:wrap; margin-bottom:6px; }
.isotp-param__name { font-family:var(--slab-mono); font-weight:700; font-size:13px; color:var(--slab-blue); }
.isotp-param__layer { background:var(--slab-surface-2); padding:2px 8px; border-radius:4px; font-size:10px; color:var(--slab-text-3); font-weight:600; text-transform:uppercase; letter-spacing:.5px; }
.isotp-param__default { margin-left:auto; font-family:var(--slab-mono); font-size:12px; color:var(--slab-green); font-weight:600; }
.isotp-param__desc { color:var(--slab-text-2); font-size:12.5px; line-height:1.5; margin:0 0 4px; }
.isotp-param__dir { color:var(--slab-text-4); font-size:11px; font-style:italic; margin:0 0 8px; }

.isotp-trace { background:var(--slab-surface-4); border:1px solid var(--slab-border); border-radius:8px; overflow:hidden; margin:10px 0; font-family:var(--slab-mono); font-size:11.5px; }
.isotp-trace__row { display:grid; grid-template-columns:36px 48px 1fr 1fr; gap:8px; padding:6px 10px; border-bottom:1px solid var(--slab-border); align-items:center; }
.isotp-trace__row:last-child { border-bottom:none; }
.isotp-trace__dir { font-weight:700; font-size:10px; text-transform:uppercase; }
.isotp-trace__id { color:var(--slab-text-2); font-weight:600; }
.isotp-trace__data { color:var(--slab-text-1); font-weight:500; word-break:break-all; }
.isotp-trace__desc { color:var(--slab-text-3); font-size:11px; font-family:var(--slab-body); }

.isotp-decoded { margin:8px 0; padding:8px 12px; background:var(--slab-green-decoded-bg); border:1px solid var(--slab-green-decoded-border); border-radius:6px; font-size:12px; color:var(--slab-green); font-family:var(--slab-mono); }

@media (max-width: 900px) {
    .uds-layout { grid-template-columns: 1fr; }
    .slab-header__back-text { display: none; }
    .slab-header__badge { display: none; }
    .slab-install__text { display: none; }
    .slab-tab { padding: 0 14px; font-size: 12px; }
    .slab-tab svg { width: 14px; height: 14px; }
    .uds-builder__footer { flex-direction: column; gap: 10px; }
    .slab-btn-send { width: 100%; justify-content: center; }
    .odx-toolbar { flex-direction: column; }
    .odx-toolbar__hint { display: none; }
}

@media (max-width: 480px) {
    .slab-content { padding: 8px 10px; }
    .slab-header { padding: 0 10px; }
    .slab-toolbar { padding: 0 10px; }
}

/* ---------- THEME TOGGLE ---------- */
.slab-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    padding: 0;
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    background: transparent;
    color: var(--slab-text-2);
    cursor: pointer;
    transition: all 0.2s ease;
    margin-left: 8px;
    flex-shrink: 0;
}

.slab-theme-toggle:hover {
    color: var(--slab-text);
    border-color: var(--slab-border-hover);
    background: var(--slab-surface-2);
}

.slab-theme-toggle svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.slab-theme-toggle:active svg {
    transform: rotate(30deg);
}

/* ---------- SOVD ARCHITECTURE ---------- */
.sovd-layout {
    display: grid;
    grid-template-columns: 220px 1fr;
    gap: 0;
    flex: 1;
    min-height: 0;
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
    background: var(--slab-surface-3);
}

.sovd-nav {
    display: flex;
    flex-direction: column;
    background: var(--slab-surface);
    border-right: 1px solid var(--slab-border);
    overflow-y: auto;
    padding: 0;
}

.sovd-nav__head {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 14px 16px;
    font-size: 12px;
    font-weight: 700;
    color: var(--slab-text-2);
    font-family: var(--slab-mono);
    letter-spacing: 0.04em;
    border-bottom: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.sovd-nav__item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 9px 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--slab-text-3);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--slab-font);
    text-align: left;
    transition: all 0.12s ease;
    border-left: 2px solid transparent;
}

.sovd-nav__item:hover {
    color: var(--slab-text-2);
    background: var(--slab-surface-2);
}

.sovd-nav__item--active {
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-left-color: var(--slab-blue);
}

.sovd-nav__footer {
    margin-top: auto;
    padding: 12px 16px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    border-top: 1px solid var(--slab-border);
    flex-shrink: 0;
}

.sovd-article {
    overflow-y: auto;
}

.sovd-article__inner {
    padding: 24px 32px;
    max-width: 900px;
}

/* SOVD Architecture Diagram */
.sovd-arch {
    display: flex;
    flex-direction: column;
    gap: 0;
    margin: 8px 0 16px;
}

.sovd-arch__layer {
    padding: 12px 16px;
    background: var(--slab-surface-3);
    border: 1px solid var(--slab-border);
    border-radius: 8px;
    position: relative;
}

.sovd-arch__layer-label {
    font-size: 10px;
    font-family: var(--slab-mono);
    font-weight: 700;
    color: var(--layer-color, var(--slab-blue));
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.sovd-arch__components {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.sovd-arch__comp {
    flex: 1;
    min-width: 140px;
    padding: 12px 14px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-align: center;
}

.sovd-arch__comp:hover {
    border-color: var(--comp-color, var(--slab-blue));
    background: var(--slab-surface-2);
}

.sovd-arch__comp--active {
    border-color: var(--comp-color, var(--slab-blue)) !important;
    box-shadow: 0 0 0 1px var(--comp-color, var(--slab-blue)), inset 0 0 12px rgba(96,165,250,0.06);
}

.sovd-arch__comp--highlight {
    border-color: rgba(139,92,246,0.3);
    background: rgba(139,92,246,0.06);
}

.sovd-arch__comp-icon {
    color: var(--comp-color, var(--slab-blue));
    margin-bottom: 6px;
}

.sovd-arch__comp-name {
    font-size: 11px;
    font-weight: 600;
    color: var(--slab-text);
    line-height: 1.3;
}

.sovd-arch__comp-hint {
    font-size: 9px;
    color: var(--slab-text-4);
    margin-top: 4px;
}

/* Arrows between layers */
.sovd-arch__arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 4px 0;
}

.sovd-arch__arrow-line {
    width: 2px;
    height: 10px;
    background: var(--slab-text-4);
}

.sovd-arch__arrow-line--dashed {
    background: repeating-linear-gradient(
        to bottom,
        var(--slab-text-4) 0px,
        var(--slab-text-4) 3px,
        transparent 3px,
        transparent 6px
    );
}

.sovd-arch__arrow-label {
    font-size: 9px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    padding: 1px 8px;
    white-space: nowrap;
}

.sovd-arch__arrow-chevron {
    font-size: 8px;
    color: var(--slab-text-4);
    line-height: 1;
}

/* Component detail panel */
.sovd-arch__detail {
    margin-top: 12px;
    padding: 16px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border);
    border-radius: 8px;
    min-height: 80px;
}

.sovd-arch__detail-empty {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--slab-text-4);
    font-size: 12px;
    padding: 16px 0;
}

.sovd-arch__detail-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    color: var(--slab-blue);
}

.sovd-arch__detail-name {
    font-size: 15px;
    font-weight: 700;
    color: var(--slab-text-1);
}

.sovd-arch__detail-desc {
    font-size: 13px;
    line-height: 1.7;
    color: var(--slab-text-2);
    margin-bottom: 10px;
}

.sovd-arch__detail-list {
    margin: 4px 0 0 20px;
    font-size: 12px;
    line-height: 1.7;
    color: var(--slab-text-2);
}

.sovd-arch__detail-list li {
    margin-bottom: 2px;
    padding-left: 4px;
}

.sovd-arch__detail-list li::marker {
    color: var(--slab-text-4);
}

/* SOVD Resource Model */
.sovd-base-uri {
    font-size: 12px;
    color: var(--slab-text-3);
    padding: 6px 12px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    display: inline-block;
    margin-top: 6px;
}

.sovd-base-uri code {
    font-family: var(--slab-mono);
    color: var(--slab-blue);
    font-weight: 600;
}

.sovd-resource {
    border-top: 1px solid var(--slab-border-section);
    padding-top: 20px;
}

.sovd-resource__header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.sovd-resource__method {
    font-family: var(--slab-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.04em;
}

.sovd-resource__method--get {
    color: #10b981;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
}

.sovd-resource__method--post {
    color: #3b82f6;
    background: rgba(59,130,246,0.1);
    border: 1px solid rgba(59,130,246,0.25);
}

.sovd-resource__method--put {
    color: #f59e0b;
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
}

.sovd-resource__method--get\/post {
    color: #10b981;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
}

.sovd-resource__method--get\/put {
    color: #10b981;
    background: rgba(16,185,129,0.1);
    border: 1px solid rgba(16,185,129,0.25);
}

.sovd-resource__path {
    font-family: var(--slab-mono);
    font-size: 12px;
    color: var(--slab-text);
    font-weight: 500;
}

.sovd-resource__uds-map {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-amber);
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
    padding: 4px 12px;
    border-radius: 4px;
    margin-bottom: 10px;
}

.sovd-resource__uds-map code {
    color: var(--slab-text-2);
}

/* SOVD Gateway Grid */
.sovd-gateway-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 8px;
    margin-top: 8px;
}

.sovd-gw-card {
    padding: 14px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    transition: border-color 0.15s ease;
}

.sovd-gw-card:hover {
    border-color: var(--slab-border-hover);
}

.sovd-gw-card__icon {
    color: var(--slab-blue);
    margin-bottom: 8px;
}

.sovd-gw-card__name {
    font-size: 13px;
    font-weight: 600;
    color: var(--slab-text);
    margin-bottom: 4px;
}

.sovd-gw-card__desc {
    font-size: 11px;
    line-height: 1.6;
    color: var(--slab-text-3);
}

/* SOVD Translation Flow */
.sovd-flow {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-top: 10px;
}

.sovd-flow__step {
    display: grid;
    grid-template-columns: 28px 1fr auto;
    gap: 12px;
    align-items: center;
    padding: 8px 12px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border-subtle);
    border-radius: 4px;
    transition: background 0.12s ease;
}

.sovd-flow__step:hover {
    background: var(--slab-surface-2);
}

.sovd-flow__num {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    font-family: var(--slab-mono);
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-radius: 50%;
    flex-shrink: 0;
}

.sovd-flow__content {
    min-width: 0;
}

.sovd-flow__actor {
    font-size: 10px;
    font-family: var(--slab-mono);
    font-weight: 700;
    color: var(--slab-text-3);
    letter-spacing: 0.04em;
}

.sovd-flow__action {
    font-size: 12px;
    color: var(--slab-text-2);
    line-height: 1.5;
}

.sovd-flow__protocol {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    padding: 2px 8px;
    background: var(--slab-surface-5);
    border-radius: 3px;
    white-space: nowrap;
}

/* SOVD HTTP Methods */
.sovd-method {
    display: flex;
    gap: 14px;
    padding: 12px 14px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border-subtle);
    border-radius: 6px;
    margin-bottom: 6px;
    align-items: flex-start;
}

.sovd-method__badge {
    font-family: var(--slab-mono);
    font-size: 12px;
    font-weight: 700;
    padding: 4px 12px;
    border-radius: 4px;
    color: var(--method-color);
    background: color-mix(in srgb, var(--method-color) 10%, transparent);
    border: 1px solid color-mix(in srgb, var(--method-color) 25%, transparent);
    flex-shrink: 0;
    letter-spacing: 0.04em;
}

.sovd-method__usage {
    font-size: 12px;
    color: var(--slab-text-2);
    margin-bottom: 6px;
}

.sovd-method__examples {
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.sovd-method__examples code {
    font-family: var(--slab-mono);
    font-size: 10px;
    color: var(--slab-text-3);
    padding: 2px 8px;
    background: var(--slab-surface-5);
    border-radius: 3px;
    display: block;
}

/* SOVD Bridge table */
.sovd-bridge-table td:first-child {
    color: var(--slab-text-2);
    font-weight: 500;
}

.sovd-bridge-table td code {
    font-family: var(--slab-mono);
    font-size: 11px;
    color: var(--slab-blue);
}

.sovd-bridge-table td:nth-child(4) code {
    color: var(--slab-cyan);
}

.sovd-bridge-table td:last-child {
    font-size: 11px;
    color: var(--slab-text-3);
    max-width: 280px;
}

/* SOVD Use Cases */
.sovd-usecase {
    border-top: 1px solid var(--slab-border-section);
    padding-top: 20px;
}

.sovd-usecase__header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.sovd-usecase__scenario {
    font-size: 13px;
    line-height: 1.7;
    color: var(--slab-text-2);
    margin-bottom: 12px;
}

.sovd-usecase__scenario strong {
    color: var(--slab-text);
}

.sovd-usecase__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.sovd-usecase__col {
    padding: 12px 14px;
    border-radius: 6px;
    border: 1px solid;
}

.sovd-usecase__col--sovd {
    background: rgba(16,185,129,0.04);
    border-color: rgba(16,185,129,0.15);
}

.sovd-usecase__col--classic {
    background: var(--slab-amber-bg);
    border-color: var(--slab-amber-border);
}

.sovd-usecase__col-label {
    font-size: 10px;
    font-family: var(--slab-mono);
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 6px;
}

.sovd-usecase__col--sovd .sovd-usecase__col-label {
    color: var(--slab-green);
}

.sovd-usecase__col--classic .sovd-usecase__col-label {
    color: var(--slab-amber);
}

.sovd-usecase__col-text {
    font-size: 12px;
    line-height: 1.6;
    color: var(--slab-text-2);
}

/* SOVD scrollbars */
.sovd-nav::-webkit-scrollbar,
.sovd-article::-webkit-scrollbar { width: 5px; }
.sovd-nav::-webkit-scrollbar-track,
.sovd-article::-webkit-scrollbar-track { background: transparent; }
.sovd-nav::-webkit-scrollbar-thumb,
.sovd-article::-webkit-scrollbar-thumb {
    background: var(--slab-text-4);
    border-radius: 10px;
}

/* ---------- SOVD API EXPLORER ---------- */
.sovd-api-container {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* Header */
.sapi-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--slab-border);
    margin-bottom: 8px;
}

.sapi-header__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--slab-text-1);
    margin-bottom: 6px;
}

.sapi-header__ver {
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    padding: 2px 10px;
    border-radius: 100px;
    border: 1px solid var(--slab-blue-std-border);
    font-weight: 600;
}

.sapi-header__desc {
    font-size: 12px;
    color: var(--slab-text-3);
    line-height: 1.5;
    margin-bottom: 10px;
}

.sapi-header__servers {
    display: flex;
    align-items: center;
    gap: 8px;
}

.sapi-header__servers-label {
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    letter-spacing: 0.04em;
}

.sapi-header__server-select {
    flex: 1;
    max-width: 600px;
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    padding: 5px 10px;
    color: var(--slab-text-2);
    font-family: var(--slab-mono);
    font-size: 11px;
    outline: none;
    cursor: pointer;
}

.sapi-header__server-select:focus {
    border-color: var(--slab-blue-border);
}

/* Tag Groups */
.sapi-group {
    margin: 0 12px 6px;
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
}

.sapi-group__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--slab-surface);
    cursor: pointer;
    user-select: none;
    transition: background 0.12s ease;
}

.sapi-group__header:hover {
    background: var(--slab-surface-2);
}

.sapi-group__left {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.sapi-group__name {
    font-size: 14px;
    font-weight: 700;
    color: var(--slab-text);
}

.sapi-group__count {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    background: var(--slab-surface-6);
    padding: 1px 7px;
    border-radius: 10px;
}

.sapi-group__desc {
    flex: 1;
    font-size: 12px;
    color: var(--slab-text-3);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sapi-group__chevron {
    color: var(--slab-text-4);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.sapi-group__chevron--collapsed {
    transform: rotate(-90deg);
}

.sapi-group__body {
    display: none;
    padding: 4px;
    background: var(--slab-surface-3);
}

.sapi-group__body--open {
    display: block;
}

/* Endpoint Card */
.sapi-ep {
    margin: 2px 0;
    border-radius: 6px;
    border: 1px solid var(--slab-border-subtle);
    overflow: hidden;
    background: var(--slab-surface-6);
    transition: border-color 0.15s ease;
}

.sapi-ep:hover {
    border-color: var(--slab-border);
}

.sapi-ep--open {
    border-color: var(--slab-border-hover);
}

.sapi-ep__summary {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    cursor: pointer;
    user-select: none;
}

.sapi-ep__method {
    font-family: var(--slab-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 4px;
    letter-spacing: 0.04em;
    color: var(--mc);
    background: color-mix(in srgb, var(--mc) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--mc) 25%, transparent);
    flex-shrink: 0;
    min-width: 56px;
    text-align: center;
}

.sapi-ep__path {
    font-family: var(--slab-mono);
    font-size: 12px;
    color: var(--slab-text);
    font-weight: 500;
    flex-shrink: 0;
}

.sapi-ep__desc {
    font-size: 12px;
    color: var(--slab-text-3);
    flex: 1;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.sapi-ep__uds-badge {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    color: var(--slab-amber);
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
    padding: 1px 6px;
    border-radius: 3px;
    flex-shrink: 0;
}

.sapi-ep__expand {
    color: var(--slab-text-4);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.sapi-ep--open .sapi-ep__expand {
    transform: rotate(90deg);
}

/* Detail area */
.sapi-ep__detail {
    display: none;
    padding: 0 14px 14px;
    border-top: 1px solid var(--slab-border-subtle);
}

.sapi-ep--open .sapi-ep__detail {
    display: block;
}

.sapi-ep__description {
    font-size: 12px;
    line-height: 1.7;
    color: var(--slab-text-2);
    padding: 12px 0 10px;
}

.sapi-ep__uds-callout {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-family: var(--slab-mono);
    color: var(--slab-amber);
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
    padding: 6px 12px;
    border-radius: 4px;
    margin-bottom: 12px;
    line-height: 1.5;
}

.sapi-ep__uds-callout strong {
    color: var(--slab-text);
}

/* Inner tabs */
.sapi-tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--slab-border);
    margin-bottom: 10px;
}

.sapi-tab {
    padding: 6px 16px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--slab-font);
    color: var(--slab-text-3);
    border: none;
    background: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.12s ease;
}

.sapi-tab:hover { color: var(--slab-text-2); }

.sapi-tab--active {
    color: var(--slab-blue);
    border-bottom-color: var(--slab-blue);
}

.sapi-tab-content {
    display: none;
}

.sapi-tab-content--active {
    display: block;
}

/* Parameters table */
.sapi-params-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}

.sapi-params-table th {
    padding: 6px 10px;
    text-align: left;
    font-family: var(--slab-mono);
    font-size: 10px;
    font-weight: 700;
    color: var(--slab-text-4);
    background: var(--slab-table-head);
    border-bottom: 1px solid var(--slab-border);
    letter-spacing: 0.04em;
}

.sapi-params-table td {
    padding: 6px 10px;
    color: var(--slab-text-2);
    border-bottom: 1px solid var(--slab-border-subtle);
    vertical-align: top;
    font-size: 11px;
    line-height: 1.5;
}

.sapi-params-table td code {
    font-family: var(--slab-mono);
    font-weight: 600;
    color: var(--slab-text);
    font-size: 11px;
}

.sapi-param-in {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    background: var(--slab-surface-5);
    padding: 1px 6px;
    border-radius: 3px;
}

.sapi-param-enum {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
}

.sapi-param-req {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-red);
    font-weight: 600;
}

.sapi-param-opt {
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
}

/* Code blocks */
.sapi-code-block {
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 8px;
}

.sapi-code-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 4px 12px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    background: var(--slab-surface-code-head);
    border-bottom: 1px solid var(--slab-border);
}

.sapi-copy {
    padding: 2px 10px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    border: 1px solid var(--slab-border);
    border-radius: 4px;
    background: transparent;
    cursor: pointer;
    transition: all 0.12s ease;
}

.sapi-copy:hover { color: var(--slab-text); border-color: var(--slab-border-hover); }

.sapi-code-block pre {
    padding: 12px 14px;
    overflow-x: auto;
    font-family: var(--slab-mono);
    font-size: 11px;
    line-height: 1.6;
    color: var(--slab-text-2);
    white-space: pre;
    background: var(--slab-surface-4);
    margin: 0;
}

.sapi-code-block--curl pre {
    color: var(--slab-cyan);
}

/* Responses */
.sapi-response {
    margin-bottom: 10px;
}

.sapi-response__header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 6px;
}

.sapi-response__code {
    font-family: var(--slab-mono);
    font-size: 12px;
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 4px;
}

.sapi-response__code--success { color: var(--slab-green); background: var(--slab-green-decoded-bg); border: 1px solid var(--slab-green-decoded-border); }
.sapi-response__code--client-err { color: var(--slab-red); background: var(--slab-red-bg); border: 1px solid var(--slab-red-border); }
.sapi-response__code--server-err { color: var(--slab-amber); background: var(--slab-amber-bg); border: 1px solid var(--slab-amber-border); }

.sapi-response__desc {
    font-size: 12px;
    color: var(--slab-text-2);
}

/* Try It */
.sapi-try-bar {
    padding-top: 10px;
    border-top: 1px solid var(--slab-border-subtle);
    margin-top: 4px;
}

.sapi-try-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 18px;
    font-size: 12px;
    font-weight: 600;
    font-family: var(--slab-font);
    color: #fff;
    background: var(--slab-send-bg);
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.sapi-try-btn:hover { background: var(--slab-send-bg-hover); }
.sapi-try-btn--sending { opacity: 0.6; pointer-events: none; }

.sapi-try-output {
    display: none;
    margin-top: 10px;
}

.sapi-try-output--visible {
    display: block;
}

.sapi-try-output__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 6px;
}

.sapi-try-status {
    font-family: var(--slab-mono);
    font-size: 12px;
    font-weight: 700;
    color: var(--slab-green);
}

.sapi-try-time {
    font-family: var(--slab-mono);
    font-size: 11px;
    color: var(--slab-text-4);
}

/* API Explorer scrollbar */
.sovd-api-container::-webkit-scrollbar { width: 5px; }
.sovd-api-container::-webkit-scrollbar-track { background: transparent; }
.sovd-api-container::-webkit-scrollbar-thumb { background: var(--slab-text-4); border-radius: 10px; }

/* API Explorer responsive */
@media (max-width: 768px) {
    .sapi-ep__summary {
        flex-wrap: wrap;
    }
    .sapi-ep__desc {
        flex-basis: 100%;
        order: 10;
        margin-top: 4px;
        white-space: normal;
    }
    .sapi-group__desc { display: none; }
    .sapi-header__server-select { max-width: 100%; }
    .sapi-params-table { font-size: 10px; }
    .sapi-params-table td:last-child { max-width: 150px; }
}

/* ========== SOVD vs UDS COMPARISON TOOL ========== */
.sovd-cmp-container {
    flex: 1;
    overflow-y: auto;
    padding: 0;
}

/* Header */
.scmp-header {
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--slab-border);
}

.scmp-header__title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 700;
    color: var(--slab-text-1);
    margin-bottom: 4px;
}

.scmp-header__desc {
    font-size: 12px;
    color: var(--slab-text-3);
    line-height: 1.5;
    margin-bottom: 12px;
}

/* Category filters */
.scmp-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
}

.scmp-filter {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 14px;
    font-size: 11px;
    font-weight: 600;
    font-family: var(--slab-font);
    color: var(--slab-text-3);
    background: var(--slab-surface-6);
    border: 1px solid var(--slab-border-subtle);
    border-radius: 100px;
    cursor: pointer;
    transition: all 0.12s ease;
}

.scmp-filter:hover {
    color: var(--slab-text-2);
    border-color: var(--slab-border);
}

.scmp-filter--active {
    color: var(--slab-blue);
    background: var(--slab-blue-dim);
    border-color: var(--slab-blue-std-border);
}

/* Card list */
.scmp-list {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Comparison Card */
.scmp-card {
    border: 1px solid var(--slab-border);
    border-radius: var(--slab-radius);
    overflow: hidden;
    background: var(--slab-surface-6);
    transition: border-color 0.15s ease;
}

.scmp-card:hover {
    border-color: var(--slab-border-hover);
}

.scmp-card__header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    cursor: pointer;
    user-select: none;
    background: var(--slab-surface);
    transition: background 0.12s ease;
}

.scmp-card__header:hover {
    background: var(--slab-surface-2);
}

.scmp-card__complexity {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 2px 10px;
    border-radius: 100px;
    color: var(--cc);
    background: color-mix(in srgb, var(--cc) 12%, transparent);
    border: 1px solid color-mix(in srgb, var(--cc) 28%, transparent);
    flex-shrink: 0;
}

.scmp-card__title {
    font-size: 14px;
    font-weight: 700;
    color: var(--slab-text);
    flex: 1;
    min-width: 0;
}

.scmp-card__sid {
    font-family: var(--slab-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--slab-text-3);
    background: var(--slab-surface-5);
    padding: 2px 10px;
    border-radius: 4px;
    flex-shrink: 0;
}

.scmp-card__chevron {
    color: var(--slab-text-4);
    flex-shrink: 0;
    transition: transform 0.2s ease;
}

.scmp-card--open .scmp-card__chevron {
    transform: rotate(180deg);
}

/* Card body */
.scmp-card__body {
    display: none;
    padding: 14px;
    border-top: 1px solid var(--slab-border-subtle);
}

.scmp-card--open .scmp-card__body {
    display: block;
}

/* Key Difference banner */
.scmp-diff {
    display: flex;
    gap: 10px;
    padding: 12px 14px;
    background: var(--slab-blue-dim);
    border: 1px solid var(--slab-blue-std-border);
    border-radius: 6px;
    margin-bottom: 14px;
    color: var(--slab-blue);
}

.scmp-diff__label {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--slab-text-4);
    margin-bottom: 3px;
}

.scmp-diff__text {
    font-size: 12px;
    line-height: 1.6;
    color: var(--slab-text-2);
}

/* Side-by-side layout */
.scmp-sides {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

.scmp-side {
    border: 1px solid var(--slab-border);
    border-radius: 6px;
    overflow: hidden;
}

.scmp-side__header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--slab-border);
}

.scmp-side--uds .scmp-side__header { background: color-mix(in srgb, var(--slab-amber) 6%, var(--slab-surface)); }
.scmp-side--sovd .scmp-side__header { background: color-mix(in srgb, var(--slab-green) 6%, var(--slab-surface)); }

.scmp-side__badge {
    font-size: 10px;
    font-family: var(--slab-mono);
    font-weight: 700;
    padding: 2px 10px;
    border-radius: 4px;
    flex-shrink: 0;
}

.scmp-side__badge--uds {
    color: var(--slab-amber);
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
}

.scmp-side__badge--sovd {
    color: var(--slab-green);
    background: var(--slab-green-decoded-bg);
    border: 1px solid var(--slab-green-decoded-border);
}

.scmp-side__service {
    font-size: 12px;
    font-weight: 600;
    color: var(--slab-text);
}

.scmp-side__method {
    font-size: 11px;
    font-family: var(--slab-mono);
    font-weight: 600;
    color: var(--slab-text-2);
}

.scmp-endpoint {
    padding: 6px 12px;
    background: var(--slab-surface-4);
    border-bottom: 1px solid var(--slab-border-subtle);
}

.scmp-endpoint code {
    font-family: var(--slab-mono);
    font-size: 11px;
    color: var(--slab-green);
    font-weight: 500;
}

/* Sub-functions */
.scmp-subfns {
    padding: 8px 12px;
    border-bottom: 1px solid var(--slab-border-subtle);
}

.scmp-subfns__label {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    color: var(--slab-text-4);
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.scmp-subfn {
    font-size: 11px;
    color: var(--slab-text-2);
    padding: 2px 0;
    line-height: 1.5;
}

.scmp-subfn code {
    font-family: var(--slab-mono);
    font-size: 11px;
    font-weight: 600;
    color: var(--slab-amber);
    margin-right: 6px;
}

/* Code blocks (UDS hex / SOVD JSON) */
.scmp-code {
    margin: 6px 8px;
    border: 1px solid var(--slab-border);
    border-radius: 5px;
    overflow: hidden;
}

.scmp-code__head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 3px 10px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-4);
    background: var(--slab-surface-code-head);
    border-bottom: 1px solid var(--slab-border);
}

.scmp-copy {
    padding: 1px 8px;
    font-size: 10px;
    font-family: var(--slab-mono);
    color: var(--slab-text-3);
    border: 1px solid var(--slab-border);
    border-radius: 3px;
    background: transparent;
    cursor: pointer;
    transition: all 0.12s ease;
}

.scmp-copy:hover {
    color: var(--slab-text);
    border-color: var(--slab-border-hover);
}

.scmp-code pre {
    padding: 8px 10px;
    font-family: var(--slab-mono);
    font-size: 11px;
    line-height: 1.6;
    white-space: pre;
    overflow-x: auto;
    background: var(--slab-surface-4);
    margin: 0;
}

.scmp-code--req pre { color: var(--slab-cyan); }
.scmp-code--resp pre { color: var(--slab-text-2); }
.scmp-code--json pre { color: var(--slab-green); }

/* Decoded line */
.scmp-decoded {
    margin: 0 8px 6px;
    padding: 6px 10px;
    font-size: 11px;
    line-height: 1.5;
    color: var(--slab-text-3);
    background: var(--slab-surface-3);
    border-radius: 4px;
    border-left: 3px solid var(--slab-amber);
}

/* Flow steps */
.scmp-flow {
    padding: 8px 12px;
}

.scmp-flow__label {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    color: var(--slab-text-4);
    letter-spacing: 0.06em;
    margin-bottom: 4px;
}

.scmp-flow__step {
    font-size: 11px;
    line-height: 1.6;
    color: var(--slab-text-2);
    padding: 2px 0 2px 14px;
    position: relative;
}

.scmp-flow__step::before {
    content: '';
    position: absolute;
    left: 0;
    top: 10px;
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--slab-text-4);
}

.scmp-side--sovd .scmp-flow__step::before {
    background: var(--slab-green);
}

/* Notes */
.scmp-notes {
    padding: 8px 12px;
    font-size: 11px;
    line-height: 1.6;
    color: var(--slab-text-3);
    font-style: italic;
}

/* Engineer tip */
.scmp-tip {
    display: flex;
    gap: 10px;
    padding: 12px 14px;
    background: var(--slab-amber-bg);
    border: 1px solid var(--slab-amber-border);
    border-radius: 6px;
}

.scmp-tip__label {
    font-size: 9px;
    font-family: var(--slab-mono);
    font-weight: 700;
    letter-spacing: 0.08em;
    color: var(--slab-amber);
    margin-bottom: 3px;
}

.scmp-tip__text {
    font-size: 12px;
    line-height: 1.6;
    color: var(--slab-text-2);
}

/* Comparison Tool scrollbar */
.sovd-cmp-container::-webkit-scrollbar { width: 5px; }
.sovd-cmp-container::-webkit-scrollbar-track { background: transparent; }
.sovd-cmp-container::-webkit-scrollbar-thumb { background: var(--slab-text-4); border-radius: 10px; }

/* Comparison responsive */
@media (max-width: 900px) {
    .scmp-sides {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .scmp-card__title { font-size: 12px; }
    .scmp-card__header { gap: 6px; padding: 8px 10px; }
    .scmp-card__body { padding: 10px; }
    .scmp-filters { gap: 3px; }
    .scmp-filter { padding: 4px 10px; font-size: 10px; }
}

/* SOVD responsive */
@media (max-width: 768px) {
    .sovd-layout {
        grid-template-columns: 1fr;
    }
    .sovd-nav {
        border-right: none;
        border-bottom: 1px solid var(--slab-border);
        flex-direction: row;
        overflow-x: auto;
        overflow-y: hidden;
    }
    .sovd-nav__head { display: none; }
    .sovd-nav__footer { display: none; }
    .sovd-nav__item {
        border-left: none;
        border-bottom: 2px solid transparent;
        white-space: nowrap;
        padding: 8px 14px;
    }
    .sovd-nav__item--active {
        border-left-color: transparent;
        border-bottom-color: var(--slab-blue);
    }
    .sovd-article__inner { padding: 16px; }
    .sovd-arch__components { flex-direction: column; }
    .sovd-usecase__row { grid-template-columns: 1fr; }
    .sovd-gateway-grid { grid-template-columns: 1fr; }
}

/* Smooth transition for theme change — targeted selectors */
body.slab-standalone,
.slab-header,
.slab-toolbar,
.slab-content,
.slab-panel,
.uds-status,
.uds-builder,
.uds-log,
.uds-svc,
.odx-ref,
.odx-nav,
.odx-article,
.odx-art__code,
.odx-tree,
.nrc-item,
.nrc-search,
.catalog-layout,
.catalog-nav,
.isotp-layout,
.isotp-nav,
.sovd-layout,
.sovd-nav,
.sovd-arch__comp,
.sovd-arch__detail,
.sovd-gw-card,
.sovd-flow__step,
.sovd-api-container,
.sapi-group__header,
.sapi-ep,
.sapi-code-block pre,
.sovd-cmp-container,
.scmp-card,
.scmp-card__header,
.scmp-side,
.scmp-code pre,
.obdii-item,
.slab-theme-toggle {
    transition: background-color 0.25s ease, border-color 0.25s ease, color 0.2s ease;
}