/* ===========================================================================
   Opteryx — Colors & Type tokens
   Source of truth for brand color palette, typography, spacing, radii, shadows.
   Values lifted directly from opteryx.studio (web.opteryx/static/css/style.css
   and opteryx-sql-ide/src/styles/tailwind.css).
   =========================================================================== */

/* Webfonts — self-hosted under /fonts/ ---------------------------------- */
@font-face {
    font-family: "Space Grotesk";
    src: url("/fonts/space-grotesk-400.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "Space Grotesk";
    src: url("/fonts/space-grotesk-600.woff2") format("woff2");
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "IBM Plex Sans";
    src: url("/fonts/ibm-plex-sans-200.woff2") format("woff2");
    font-weight: 200;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "IBM Plex Sans";
    src: url("/fonts/ibm-plex-sans-400.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "IBM Plex Sans";
    src: url("/fonts/ibm-plex-sans-500.woff2") format("woff2");
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "JetBrains Mono";
    src: url("/fonts/jetbrains-mono-400.woff2") format("woff2");
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: "JetBrains Mono";
    src: url("/fonts/jetbrains-mono-700.woff2") format("woff2");
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    /* --- Brand palette (from site + app) -------------------------------- */
    --opteryx-teal: #07797c; /* primary accent. logo mark background. */
    --opteryx-orange: #fe7701; /* secondary accent. active tab underline, CTA hover, links on marketing. */
    --opteryx-navy: #1f2e61; /* deep navy. primary CTA bg on marketing, IDE body text. */
    --opteryx-indigo-line: #666699; /* header/footer rule in IDE shell. */
    --opteryx-pale-teal: #f3fbfa; /* surface tint. table header bg, badges bg. */

    /* --- Neutrals ------------------------------------------------------- */
    --bg: #ffffff;
    --panel: #f6f8fb; /* IDE side panels. */
    --panel-2: #eef3f5;
    --header-surface: #eaf1f3;
    --muted-surface: #f8fafc; /* slate-50 tone used on marketing hero tiles */
    --text: #3d4a4e; /* marketing body */
    --text-deep: #1f2e61; /* IDE text, marketing h1 */
    --muted: #5f6b78; /* IDE secondary text */
    --muted-2: #94a3b8; /* slate-400; placeholder, inactive icons */
    --border: #d9e2e8; /* IDE panel rule */
    --border-2: #cbd7de;
    --muted-border: rgba(61, 74, 78, 0.08); /* marketing hairline */

    /* --- Semantic status ----------------------------------------------- */
    --success: #188038;
    --danger: #d50000;
    --warning: #ffa503;
    --gold: #c89427;
    --info: #fe7701; /* orange used as "info" hue in IDE */

    /* Alpha variants used throughout */
    --accent-soft: rgba(7, 121, 124, 0.08);
    --accent-soft-2: rgba(7, 121, 124, 0.12);
    --accent-soft-3: rgba(7, 121, 124, 0.28); /* gutter, focus ring */
    --accent-ring: rgba(7, 121, 124, 0.18); /* focus outline */
    --orange-soft: rgba(254, 119, 1, 0.08);
    --navy-soft: rgba(31, 46, 97, 0.04);
    --success-soft: rgba(24, 128, 56, 0.1);
    --danger-soft: rgba(213, 0, 0, 0.08);
    --warning-soft: rgba(255, 165, 3, 0.08);

    /* --- Aliases (legacy names from opteryx codebases) ---------------- */
    --accent: var(--opteryx-teal);
    --accent-2: var(--opteryx-orange);
    --accent-3: var(--opteryx-navy);
    --pale-accent: var(--opteryx-pale-teal);

    /* --- Type stacks --------------------------------------------------- */
    --font-display:
        "Space Grotesk", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-body:
        "IBM Plex Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI",
        Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-mono:
        "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
        "Liberation Mono", "Courier New", monospace;

    /* Sizes --------------------------------------------------------------- */
    --fs-display-xl: 60px; /* hero — marketing */
    --fs-display-l: 48px;
    --fs-display-m: 32px;
    --fs-h1: 28px;
    --fs-h2: 22px;
    --fs-h3: 18px;
    --fs-body-l: 16px;
    --fs-body: 14px;
    --fs-body-s: 13px; /* IDE base */
    --fs-caption: 12px;
    --fs-micro: 11px;

    --lh-tight: 1.1;
    --lh-heading: 1.2;
    --lh-body: 1.6;

    /* Spacing (4px base) ------------------------------------------------- */
    --sp-0: 0px;
    --sp-1: 4px;
    --sp-2: 8px;
    --sp-3: 12px;
    --sp-4: 16px;
    --sp-5: 20px;
    --sp-6: 24px;
    --sp-8: 32px;
    --sp-10: 40px;
    --sp-12: 48px;
    --sp-16: 64px;

    /* Radii — small & sober. IDE uses 5–6px, marketing uses 8–14px -------- */
    --r-xs: 2px;
    --r-s: 5px; /* .btn in IDE */
    --r-m: 6px; /* input, icon-btn */
    --r-l: 8px; /* marketing .btn */
    --r-xl: 12px; /* cards, hero tile, search, leader-card */
    --r-2xl: 14px; /* hero section, user-menu */
    --r-pill: 999px;

    /* Shadows — very soft. Marketing only; IDE is flat/hairline. ---------- */
    --shadow-xs: 0 6px 18px rgba(15, 23, 42, 0.02);
    --shadow-s: 0 6px 18px rgba(7, 121, 124, 0.08); /* btn-primary */
    --shadow-m: 0 8px 24px rgba(15, 23, 42, 0.035); /* feature card */
    --shadow-l: 0 8px 30px rgba(15, 23, 42, 0.04); /* leader card */
    --shadow-menu: 0 16px 36px rgba(15, 23, 42, 0.12); /* user menu */
    --shadow-modal: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

    /* Motion ------------------------------------------------------------- */
    --t-fast: 120ms ease;
    --t-base: 150ms ease;
    --t-slow: 200ms ease-in-out;
}

/* ===========================================================================
   Semantic element styles
   =========================================================================== */

body {
    font-family: var(--font-body);
    color: var(--text);
    background: var(--bg);
    font-size: var(--fs-body);
    line-height: var(--lh-body);
    -webkit-font-smoothing: antialiased;
}

/* Display type — marketing hero uses Space Grotesk bold, navy */
.display-xl,
h1.display {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-display-xl);
    line-height: var(--lh-tight);
    color: var(--text-deep);
    letter-spacing: -0.01em;
}

h1 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-h1);
    line-height: var(--lh-heading);
    color: var(--text-deep);
}

h2 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-h2);
    line-height: var(--lh-heading);
    color: var(--text-deep);
}

h3 {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: var(--fs-h3);
    line-height: var(--lh-heading);
    color: var(--text-deep);
}

p {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: var(--fs-body-l);
    line-height: var(--lh-body);
    color: var(--text);
}

.text-muted {
    color: var(--muted);
}
.text-micro {
    font-size: var(--fs-micro);
    color: var(--muted-2);
}

code,
pre,
.mono {
    font-family: var(--font-mono);
    font-size: var(--fs-body-s);
}

a {
    color: var(--opteryx-orange);
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 2px;
}
a:hover {
    color: var(--opteryx-teal);
}

:focus-visible {
    outline: 3px solid var(--accent-ring);
    outline-offset: 2px;
}

/* ui_kits/studio/studio.css
   Opteryx Studio — IDE shell.
   Grid: header / optional system-warning / main (aside | center | aside) / status-bar.
   Philosophy: flat, hairline rules, orange accent reserved for active states + primary CTA. */

/* ---- Theme tokens ----------------------------------------------------- */
:root,
[data-theme="light"] {
    --ide-bg: #ffffff;
    --ide-surface: #ffffff;
    --ide-surface-2: #fbfcfd;
    --ide-text: var(--text-deep);
    --ide-text-muted: var(--muted);
    --ide-text-faint: var(--muted-2);
    --ide-border: var(--border);
    --ide-border-soft: var(--muted-border);
    --ide-hover: var(--accent-soft);
    --ide-row-hover: rgba(7, 121, 124, 0.03);
    --ide-table-head: var(--opteryx-pale-teal);
    --ide-tab-bg: #fbfcfd;
    --ide-modal-scrim: rgba(15, 23, 42, 0.4);
    --ide-kw: var(--opteryx-teal);
    --ide-str: var(--opteryx-orange);
    --ide-num: var(--opteryx-navy);
    --ide-fn: var(--opteryx-navy);
    --ide-cmt: var(--muted-2);
    /* Run button — vivid orange on light */
    --btn-run-bg: var(--opteryx-orange);
    --btn-run-fg: #fff;
    /* System warning banner */
    --sys-warn-bg: #fde9c7;
    --sys-warn-border: rgba(184, 110, 0, 0.4);
    --sys-warn-fg: #6b3d00;
    --sys-warn-hover: rgba(184, 110, 0, 0.18);
}

[data-theme="dark"] {
    --ide-bg: #0e1620;
    --ide-surface: #131d2a;
    --ide-surface-2: #0e1620;
    --ide-text: #e6edf7;
    --ide-text-muted: #93a2b5;
    --ide-text-faint: #5f6e83;
    --ide-border: #1f2c3d;
    --ide-border-soft: rgba(255, 255, 255, 0.04);
    --ide-hover: rgba(7, 121, 124, 0.18);
    --ide-row-hover: rgba(7, 121, 124, 0.1);
    --ide-table-head: #182636;
    --ide-tab-bg: #0e1620;
    --ide-modal-scrim: rgba(0, 0, 0, 0.55);
    --ide-kw: #6fcbd4;
    --ide-str: #fe9f4a;
    --ide-num: #b5c2dd;
    --ide-fn: #b5c2dd;
    --ide-cmt: #6f7e91;
    /* Run button — muted amber on dark, less retina-burn */
    --btn-run-bg: #b85a0e;
    --btn-run-fg: #fff1e0;
    /* System warning banner — brighter, higher-contrast on dark */
    --sys-warn-bg: #3a2a10;
    --sys-warn-border: rgba(255, 178, 70, 0.55);
    --sys-warn-fg: #ffd89a;
    --sys-warn-hover: rgba(255, 178, 70, 0.18);
}

* {
    box-sizing: border-box;
}
html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}
body {
    font-family: var(--font-display);
    color: var(--ide-text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
    padding: 0;
}
input,
select,
textarea {
    font-family: inherit;
    color: inherit;
}
input:focus,
textarea:focus {
    outline: none;
}

/* ---- Primitives ------------------------------------------------------- */
.icon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 4px;
    color: var(--ide-text-muted);
    transition:
        background var(--t-fast),
        color var(--t-fast);
}
.icon-btn img {
    width: 13px;
    height: 13px;
}
.icon-btn:hover {
    background: var(--ide-hover);
    color: var(--opteryx-teal);
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 12px;
    border-radius: var(--r-s);
    padding: 5px 10px;
    white-space: nowrap;
    transition:
        filter var(--t-fast),
        background var(--t-fast),
        color var(--t-fast);
}
.btn-primary {
    background: var(--opteryx-teal);
    color: #fff;
}
.btn-primary:hover {
    filter: brightness(0.92);
}
.btn-orange {
    background: var(--btn-run-bg);
    color: var(--btn-run-fg);
}
.btn-orange:hover {
    filter: brightness(0.94);
}
.btn-orange:disabled {
    opacity: 0.7;
    cursor: default;
}
.btn-ghost {
    color: var(--ide-text-muted);
    padding: 5px 10px;
    font-weight: 500;
}
.btn-ghost:hover {
    background: var(--ide-hover);
    color: var(--opteryx-teal);
}

.kbd {
    font-family: var(--font-mono);
    font-size: 10px;
    opacity: 0.75;
    font-weight: 400;
    margin-left: 2px;
}

/* ---- IDE shell -------------------------------------------------------- */
.ide {
    display: grid;
    grid-template-rows: 40px auto 1fr 36px;
    height: 100vh;
    min-height: 640px;
    background: var(--ide-surface);
    color: var(--ide-text);
    font-family: var(--font-display);
    font-size: 13px;
}

/* ---- Header ----------------------------------------------------------- */
.ide-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 12px;
    background: var(--ide-surface);
    border-bottom: 1px solid var(--ide-border);
}
.ide-logo {
    display: flex;
    align-items: center;
    gap: 8px;
}
.ide-logo .name {
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 13px;
    color: var(--ide-text);
    letter-spacing: -0.005em;
}
.env-chip {
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 500;
    color: var(--ide-text-muted);
    padding: 2px 8px;
    border: 1px solid var(--ide-border);
    border-radius: var(--r-pill);
}
/* Theme toggle (small switch in header) */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    margin-right: 4px;
    background: transparent;
}
.theme-track {
    position: relative;
    width: 38px;
    height: 20px;
    border-radius: 999px;
    background: var(--ide-surface-2);
    border: 1px solid var(--ide-border);
    transition:
        background var(--t-base),
        border-color var(--t-base);
}
.theme-track.dark {
    background: rgba(7, 121, 124, 0.18);
    border-color: rgba(7, 121, 124, 0.4);
}
.theme-knob {
    position: absolute;
    top: 1px;
    left: 1px;
    width: 16px;
    height: 16px;
    border-radius: 999px;
    background: #fff;
    color: var(--opteryx-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
    transition:
        transform var(--t-base),
        color var(--t-base);
}
.theme-track.dark .theme-knob {
    transform: translateX(18px);
    background: var(--opteryx-teal);
    color: #fff;
}

.user-chip {
    display: inline-flex;
    align-items: center;
}
.user-chip .avatar {
    width: 22px;
    height: 22px;
    border-radius: 999px;
    background: var(--opteryx-teal);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: 600;
    letter-spacing: 0.04em;
}

/* ---- System warning banner (below header, full width) ----------------- */
.sys-warning {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--sys-warn-bg);
    border-bottom: 1px solid var(--sys-warn-border);
    color: var(--sys-warn-fg);
    font-size: 12px;
    font-weight: 500;
    position: relative;
    z-index: 3;
}
.sys-warning svg {
    color: var(--sys-warn-fg);
    flex-shrink: 0;
}
.sys-warning-text {
    flex: 1;
}
.sys-warning-dismiss {
    width: 20px;
    height: 20px;
    border-radius: 4px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--sys-warn-fg);
    opacity: 0.75;
}
.sys-warning-dismiss:hover {
    background: var(--sys-warn-hover);
    opacity: 1;
}

/* ---- Main three-column grid ------------------------------------------ */
.ide-main {
    display: grid;
    grid-template-columns: 232px 1fr 300px;
    min-height: 0;
    background: var(--ide-surface);
}

.sidebar {
    border-right: 1px solid var(--ide-border);
    background: var(--ide-surface);
    display: flex;
    flex-direction: column;
    min-height: 0;
}
.drawer {
    border-left: 1px solid var(--ide-border);
    background: var(--ide-surface);
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* ---- Panel header (title strip at top of each open panel) ------------ */
.panel-header {
    display: flex;
    align-items: center;
    height: 30px;
    padding: 0 8px 0 12px;
    background: var(--ide-surface-2);
    border-bottom: 1px solid var(--ide-border);
    font-family: var(--font-display);
    font-size: 11px;
    font-weight: 600;
    color: var(--ide-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    flex-shrink: 0;
}
.panel-header > span:first-child {
    flex: 1;
}
.panel-header-actions {
    display: flex;
    align-items: center;
    gap: 2px;
}
.panel-header-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border: none;
    background: transparent;
    border-radius: 4px;
    color: var(--ide-text-muted);
    cursor: pointer;
}
.panel-header-btn:hover {
    background: var(--ide-hover);
    color: var(--opteryx-teal);
}
.panel-header-btn .spin {
    animation: ds-spin 0.7s linear;
    display: inline-flex;
}
@keyframes ds-spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* ---- Panel body shared ------------------------------------------------ */
.panel-body {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: auto;
}
.panel-body.right {
    background: var(--ide-surface-2);
}

.panel-search {
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 8px 10px;
    padding: 5px 8px;
    background: var(--ide-surface);
    border: 1px solid var(--ide-border);
    border-radius: var(--r-s);
    color: var(--ide-text-faint);
    flex-shrink: 0;
}
.panel-search:focus-within {
    border-color: var(--opteryx-teal);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.panel-search input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 12px;
    color: var(--ide-text);
}
.panel-search input::placeholder {
    color: var(--ide-text-faint);
}

/* ---- Datasets tree ---------------------------------------------------- */
.tree {
    padding: 2px 6px 8px;
    list-style: none;
    margin: 0;
}
.tree-row {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 12px;
    color: var(--ide-text);
    cursor: pointer;
}
.tree-row.root {
    font-weight: 600;
    padding-left: 8px;
    margin-top: 6px;
    color: var(--ide-text-muted);
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.tree-row.root:first-child {
    margin-top: 0;
}
.tree-row.leaf {
    padding-left: 16px;
    color: var(--ide-text);
    font-weight: 400;
}
.tree-row.leaf:hover {
    background: var(--ide-hover);
    color: var(--opteryx-teal);
}
.tree-row.leaf.active {
    background: var(--ide-hover);
    color: var(--opteryx-teal);
    font-weight: 500;
}
.tree-row .chev {
    width: 9px;
    height: 9px;
    opacity: 0.5;
}

/* ---- Recent queries list --------------------------------------------- */
.recent-list {
    list-style: none;
    margin: 0;
    padding: 4px 6px 8px;
}
.recent-bucket {
    margin-top: 6px;
}
.recent-bucket:first-child {
    margin-top: 0;
}
.recent-bucket-head {
    padding: 6px 10px 4px;
    font-family: var(--font-display);
    font-size: 10.5px;
    font-weight: 600;
    color: var(--ide-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.recent-row {
    position: relative;
    padding: 6px 10px;
    border-radius: 4px;
    cursor: pointer;
    outline: none;
}
.recent-row:hover,
.recent-row:focus-visible {
    background: var(--ide-hover);
}
.recent-row .sql {
    display: block;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ide-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ---- Recent queries: floating popover preview (portal-rendered) ----- */
.recent-popover {
    position: fixed;
    z-index: 1000;
    padding: 10px 12px;
    background: var(--ide-surface);
    border: 1px solid var(--ide-border);
    border-radius: 6px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.18);
    pointer-events: none;
    animation: recent-pop-in 110ms ease-out;
}
@keyframes recent-pop-in {
    from {
        opacity: 0;
        transform: translateY(-50%) translateX(-4px);
    }
    to {
        opacity: 1;
        transform: translateY(-50%) translateX(0);
    }
}
.recent-popover-sql {
    margin: 0 0 8px;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--ide-text);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 9em;
    overflow: hidden;
    line-height: 1.5;
}
.recent-popover-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 12px;
    padding-top: 8px;
    border-top: 1px solid var(--ide-border-soft);
    font-family: var(--font-display);
    font-size: 11px;
    color: var(--ide-text);
}
.recent-popover-meta > span {
    white-space: nowrap;
}
.recent-popover-meta b {
    font-weight: 600;
}
.recent-popover-meta .muted {
    color: var(--ide-text-muted);
    margin-left: auto;
}

/* hover preview — expands inline, no escape-clip issues */
.recent-tooltip {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 140ms ease;
    margin-top: 0;
}
.recent-tooltip > * {
    overflow: hidden;
    min-height: 0;
}
.recent-row:hover .recent-tooltip,
.recent-row:focus-visible .recent-tooltip {
    grid-template-rows: 1fr;
}
.recent-tooltip-inner {
    padding-top: 6px;
}
.recent-tooltip-sql {
    margin: 0 0 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--ide-text-muted);
    white-space: pre-wrap;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.recent-tooltip-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 2px 12px;
    font-family: var(--font-display);
    font-size: 10.5px;
    color: var(--ide-text);
}
.recent-tooltip-meta b {
    font-weight: 600;
}
.recent-tooltip-meta .muted {
    color: var(--ide-text-muted);
    margin-left: auto;
}

.empty-panel {
    padding: 18px 16px;
    color: var(--ide-text-muted);
    font-size: 12px;
    line-height: 1.55;
}

/* ---- Datasets split: tree on top, details below ---------------------- */
.panel-body.split {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}
.split-top {
    flex: 1 1 60%;
    min-height: 0;
    overflow: auto;
    display: flex;
    flex-direction: column;
}
.split-bottom {
    flex: 0 0 38%;
    min-height: 0;
    display: flex;
    flex-direction: column;
    border-top: 1px solid var(--ide-border);
    background: var(--ide-surface-2);
}
.split-bottom-head {
    padding: 6px 12px;
    font-family: var(--font-display);
    font-size: 10.5px;
    font-weight: 600;
    color: var(--ide-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--ide-border-soft);
}
.ds-details {
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 10px 12px 14px;
}
.ds-details.empty {
    color: var(--ide-text-muted);
    font-size: 11.5px;
    line-height: 1.55;
}
.ds-details-head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 4px;
}
.ds-details-name {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--ide-text);
    word-break: break-all;
}
.ds-details-kind {
    font-family: var(--font-display);
    font-size: 10px;
    color: var(--ide-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.ds-details-desc {
    font-size: 11.5px;
    line-height: 1.5;
    color: var(--ide-text-muted);
    margin-bottom: 10px;
}
.ds-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 18px;
    margin: 0;
}
.ds-details-grid > div {
    display: flex;
    flex-direction: column;
    gap: 1px;
}
.ds-details-grid .ds-details-row {
    grid-column: 1 / -1;
}
.ds-details-grid dt {
    font-family: var(--font-display);
    font-size: 10px;
    font-weight: 500;
    color: var(--ide-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.ds-details-grid dd {
    margin: 0;
    font-family: var(--font-mono);
    font-size: 11.5px;
    color: var(--ide-text);
}

/* ---- Right panel: Help ------------------------------------------------ */
.help-section {
    padding: 12px 14px;
}
.help-section h4 {
    margin: 0 0 8px;
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 12px;
    color: var(--ide-text);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.help-group {
    margin-top: 10px;
}
.help-group:first-of-type {
    margin-top: 2px;
}
.help-group h5 {
    margin: 0 0 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ide-text);
    text-transform: none;
    letter-spacing: 0;
}
.help-line {
    margin: 0 0 4px;
    font-size: 12px;
    color: var(--ide-text-muted);
    line-height: 1.5;
}
.help-divider {
    height: 1px;
    background: var(--border);
    margin: 0 14px;
}

.fn-list {
    margin-top: 8px;
}
.fn-item {
    padding: 8px 0;
    border-top: 1px solid var(--ide-border);
}
.fn-item:first-child {
    border-top: none;
    padding-top: 4px;
}
.fn-item-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.fn-item-head .kw {
    font-family: var(--font-mono);
    font-size: 12px;
    font-weight: 600;
    color: var(--ide-text);
}
.fn-expand {
    color: var(--ide-text-faint);
    font-size: 14px;
    line-height: 1;
}
.fn-desc {
    font-size: 11.5px;
    color: var(--ide-text-muted);
    margin-top: 2px;
    line-height: 1.5;
}

/* ---- Right panel: Upload --------------------------------------------- */
.upload-drop {
    margin: 12px 14px;
    padding: 24px 14px;
    background: var(--ide-surface);
    border: 1px dashed var(--border-2);
    border-radius: var(--r-s);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--ide-text-muted);
}
.upload-headline {
    font-size: 12px;
    color: var(--ide-text);
    font-weight: 500;
}
.upload-sub {
    font-size: 11px;
    color: var(--ide-text-muted);
}
.link-ish {
    color: var(--opteryx-teal);
    text-decoration: underline;
    cursor: pointer;
}
.upload-note {
    margin: 0 14px 12px;
    font-size: 11px;
    color: var(--ide-text-muted);
    line-height: 1.55;
}

/* ---- Right panel: Assistant ------------------------------------------ */
.ask-bar-inline {
    margin: 12px 14px 8px;
    display: flex;
    align-items: center;
    gap: 6px;
    background: var(--ide-surface);
    border: 1px solid var(--ide-border);
    border-radius: var(--r-s);
    padding: 5px 8px;
}
.ask-bar-inline:focus-within {
    border-color: var(--opteryx-teal);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.ask-bar-inline input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 12px;
    color: var(--ide-text);
}
.ask-bar-inline input::placeholder {
    color: var(--ide-text-faint);
    font-style: italic;
}
.ask-bar-inline .send {
    width: 22px;
    height: 22px;
    border-radius: 4px;
    background: var(--ide-hover);
    color: var(--opteryx-teal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.ask-bar-inline .send:hover {
    background: var(--opteryx-teal);
    color: #fff;
}
.assistant-hint {
    margin: 0 14px;
    font-size: 11.5px;
    color: var(--ide-text-muted);
    line-height: 1.5;
}

/* ---- Center: editor --------------------------------------------------- */
.center {
    display: flex;
    flex-direction: column;
    min-width: 0;
    background: var(--ide-surface);
}

/* Tabs */
.tabs {
    display: flex;
    align-items: stretch;
    height: 32px;
    padding: 0 6px;
    border-bottom: 1px solid var(--ide-border);
    background: var(--ide-surface-2);
    position: relative;
    z-index: 2;
}
.tab {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 0 10px;
    font-size: 12px;
    color: var(--ide-text-muted);
    font-weight: 500;
    cursor: pointer;
    border-right: 1px solid var(--ide-border);
    background: transparent;
}
.tab:first-child {
    border-left: 1px solid var(--ide-border);
}
.tab svg {
    opacity: 0.7;
}
.tab .tab-close {
    width: 14px;
    height: 14px;
    border-radius: 3px;
    color: var(--ide-text-faint);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-left: 2px;
}
.tab .tab-close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--ide-text);
}
.tab.active {
    color: var(--ide-text);
    background: var(--ide-surface);
}
.tab.active svg {
    opacity: 1;
}
.tab.active::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 10px;
    right: 10px;
    height: 2px;
    background: var(--opteryx-orange);
    border-radius: 999px;
}
.tab-add {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    color: var(--ide-text-muted);
    border-right: 1px solid var(--ide-border);
}
.tab-add:hover {
    color: var(--opteryx-teal);
    background: var(--ide-hover);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-bottom: 1px solid var(--ide-border);
    background: var(--ide-surface);
    position: relative;
    z-index: 2;
}
.toolbar .spacer {
    flex: 1;
}
.toolbar .chip {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    font-size: 11px;
    font-weight: 500;
    color: var(--ide-text-muted);
    padding: 2px 8px;
    border-radius: var(--r-pill);
    background: var(--ide-surface-2);
    border: 1px solid var(--ide-border);
    white-space: nowrap;
    flex-shrink: 0;
}
.toolbar .chip svg {
    color: var(--ide-text-faint);
}
.tool-sep {
    width: 1px;
    height: 18px;
    background: var(--border);
    margin: 0 4px;
}

/* Editor */
.editor {
    padding: 12px 14px;
    background: var(--ide-surface);
    border-bottom: 1px solid var(--ide-border);
    font-family: var(--font-mono);
    font-size: 12.5px;
    line-height: 1.55;
    min-height: 160px;
    max-height: 240px;
    overflow: auto;
    counter-reset: line;
}
.editor .ln {
    display: grid;
    grid-template-columns: 28px 1fr;
    color: var(--ide-text);
}
.editor .ln::before {
    counter-increment: line;
    content: counter(line);
    color: var(--ide-text-faint);
    text-align: right;
    padding-right: 12px;
    user-select: none;
}
.kw {
    color: var(--ide-kw);
    font-weight: 700;
}
.str {
    color: var(--ide-str);
}
.num {
    color: var(--ide-num);
}
.fn {
    color: var(--ide-fn);
    font-weight: 700;
}
.cmt {
    color: var(--ide-text-faint);
    font-style: italic;
}

/* ---- Results ---------------------------------------------------------- */
.results {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: var(--ide-surface);
    position: relative;
}
.results-tabs {
    display: flex;
    align-items: center;
    padding: 0 10px;
    height: 30px;
    border-bottom: 1px solid var(--ide-border);
    background: var(--ide-surface-2);
    position: sticky;
    top: 0;
    z-index: 3;
}
.results-tabs .spacer {
    flex: 1;
}
.result-tab {
    position: relative;
    height: 30px;
    padding: 0 10px;
    font-size: 12px;
    font-weight: 500;
    color: var(--ide-text-muted);
    cursor: pointer;
}
.result-tab:hover {
    color: var(--ide-text);
}
.result-tab.active {
    color: var(--ide-text);
}
.result-tab.active::after {
    content: "";
    position: absolute;
    bottom: -1px;
    left: 10px;
    right: 10px;
    height: 2px;
    background: var(--opteryx-orange);
    border-radius: 999px;
}

/* Data table — tight density */
.table-wrap {
    flex: 1;
    overflow: auto;
    background: var(--ide-surface);
    min-width: 0;
}
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 12px;
}
.data-table thead th {
    position: sticky;
    top: 0;
    z-index: 3;
    background: var(--ide-table-head);
    color: var(--ide-text);
    text-align: left;
    font-weight: 600;
    font-size: 11px;
    padding: 4px 10px;
    border-bottom: 1px solid var(--ide-border);
    letter-spacing: 0.02em;
    white-space: nowrap;
}
.data-table thead th.row-num-head {
    width: 40px;
    text-align: right;
    color: var(--ide-text-muted);
}
.data-table thead th .th-inner {
    display: inline-flex;
    align-items: center;
    gap: 5px;
}
.data-table thead th img {
    width: 11px;
    height: 11px;
    opacity: 0.7;
}

.data-table tbody td {
    padding: 3px 10px;
    font-family: var(--font-body);
    font-size: 12px;
    line-height: 1.45;
    color: var(--ide-text);
    border-bottom: 1px solid var(--ide-border-soft);
    white-space: nowrap;
}
.data-table tbody tr:hover {
    background: rgba(7, 121, 124, 0.03);
}
.data-table .num-cell {
    font-family: var(--font-mono);
    text-align: right;
}
.data-table .row-num {
    color: var(--ide-text-faint);
    width: 40px;
}
.data-table .null {
    color: var(--ide-text-faint);
    font-style: italic;
}

/* Execution plan */
.plan-wrap {
    padding: 20px;
    flex: 1;
    overflow: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--ide-surface-2);
}
.plan-node {
    background: var(--ide-surface);
    border: 1px solid var(--ide-border);
    border-radius: var(--r-s);
    padding: 8px 12px;
    min-width: 200px;
    text-align: left;
    box-shadow: var(--shadow-xs);
}
.plan-node.accent {
    border-left: 3px solid var(--opteryx-teal);
    box-shadow: 0 1px 0 rgba(7, 121, 124, 0.12);
}
.plan-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--ide-text);
}
.plan-stats {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--ide-text-muted);
    margin-top: 2px;
}
.plan-arrow {
    color: var(--ide-text-faint);
    align-self: center;
}

/* Details */
.details-wrap {
    padding: 12px 18px;
    flex: 1;
    overflow: auto;
    background: var(--ide-surface);
}
.details-table {
    width: 100%;
    border-collapse: collapse;
}
.details-table tr {
    border-bottom: 1px solid var(--ide-border-soft);
}
.details-table td.k {
    padding: 6px 0;
    width: 160px;
    color: var(--ide-text-muted);
    font-size: 12px;
    font-weight: 500;
}
.details-table td.v {
    padding: 6px 0;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--ide-text);
}

.empty-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ide-text-muted);
    font-size: 12px;
    background: var(--ide-surface);
}

/* ---- Status bar ------------------------------------------------------- */
.status-bar {
    display: flex;
    align-items: center;
    height: 36px;
    gap: 8px;
    padding: 0 4px;
    background: var(--ide-surface);
    border-top: 1px solid var(--ide-border);
    font-family: var(--font-display);
    font-size: 12px;
    color: var(--ide-text-muted);
    white-space: nowrap;
    overflow: hidden;
    flex-shrink: 0;
    position: relative;
    z-index: 3;
}
.status-bar > * {
    flex-shrink: 0;
}
.status-bar .spacer {
    flex: 1 1 auto;
}
.status-bar .sep {
    color: var(--ide-text-faint);
}
.status-bar .mono {
    font-family: var(--font-mono);
    font-size: 10.5px;
    color: var(--ide-text);
}

/* Panel-toggle rails — proper-sized individual buttons, grouped but not squished.
   Each button is a real affordance: 28×28, rounded, spaced. */
.status-bar .rail {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 0 6px;
}
.status-bar .rail.left {
    border-right: 1px solid var(--ide-border);
    padding-right: 10px;
}
.status-bar .rail.right {
    border-left: 1px solid var(--ide-border);
    padding-left: 10px;
}
.rail-btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: var(--r-s);
    color: var(--ide-text-muted);
    background: transparent;
    border: 1px solid transparent;
    transition:
        color var(--t-fast),
        background var(--t-fast),
        border-color var(--t-fast);
}
.rail-btn:hover {
    color: var(--ide-text);
    background: var(--ide-surface);
    border-color: var(--border);
}
.rail-btn.active {
    color: var(--opteryx-teal);
    background: var(--ide-hover);
    border-color: rgba(7, 121, 124, 0.28);
}
.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 1px 7px;
    border-radius: var(--r-pill);
    font-size: 10.5px;
    font-weight: 500;
}
.status-pill.ok {
    background: var(--success-soft);
    color: var(--success);
}
.status-pill .dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background: currentColor;
}

/* ---- AI response overlay --------------------------------------------- */
.overlay {
    position: fixed;
    inset: 0;
    background: var(--ide-modal-scrim);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 90px;
    z-index: 50;
    animation: fadeIn 200ms ease-out;
}
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}
.ai-card {
    width: 560px;
    max-width: calc(100vw - 40px);
    background: var(--ide-surface);
    border-radius: var(--r-m);
    box-shadow: var(--shadow-modal);
    overflow: hidden;
    animation: slideUp 300ms cubic-bezier(0.2, 0.8, 0.2, 1);
}
@keyframes slideUp {
    from {
        transform: translateY(12px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}
.ai-card-head {
    padding: 14px 18px;
    border-bottom: 1px solid var(--ide-border);
    display: flex;
    align-items: center;
    gap: 10px;
}
.ai-card-head img {
    width: 16px;
    height: 16px;
}
.ai-card-head h4 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
    color: var(--ide-text);
}
.ai-card-body {
    padding: 16px 18px;
}
.ai-card-body p {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--ide-text);
    margin: 0 0 10px;
    line-height: 1.55;
}
.ai-card-body pre {
    font-family: var(--font-mono);
    font-size: 12px;
    line-height: 1.6;
    background: var(--ide-surface-2);
    border: 1px solid var(--ide-border);
    border-radius: var(--r-s);
    padding: 10px 12px;
    margin: 0;
    color: var(--ide-text);
    overflow: auto;
}
.ai-card-foot {
    padding: 10px 18px;
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    border-top: 1px solid var(--ide-border);
    background: var(--ide-surface-2);
}

/* ---- Loading overlay -------------------------------------------------- */
#app-loading {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    background: var(--ide-surface);
    font-family: var(--font-display);
    font-size: 13px;
    color: var(--ide-text-muted);
}
#app-loading p {
    margin: 0;
}
.hidden {
    display: none !important;
}