:root {
  --bg: #f5f7fa;
  --panel: #ffffff;
  --panel-2: #f0f3f7;
  --text: #15191e;
  --muted: #667281;
  --border: #d6dde6;
  --accent: #1769e0;
  --accent-contrast: #ffffff;
  --danger: #c83232;
  --warning: #a85a00;
  --success: #067647;
  --code: #101214;
  --code-text: #eff3f8;
  --shadow: 0 8px 28px rgba(20, 25, 30, .08);
  --warning-bg: #fff8e8;
  --danger-bg: #fff1f0;
  --success-bg: #edfdf5;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101214;
    --panel: #171a1e;
    --panel-2: #20242a;
    --text: #f3f5f7;
    --muted: #a7b0bc;
    --border: #303640;
    --accent: #6ea8fe;
    --accent-contrast: #0d1b33;
    --danger: #ff8a80;
    --warning: #ffb86b;
    --success: #5ee0aa;
    --code: #0b0d0f;
    --code-text: #f3f6f8;
    --shadow: none;
    --warning-bg: #2a2418;
    --danger-bg: #2b1c1d;
    --success-bg: #142820;
  }
}
* { box-sizing: border-box; }
body { margin: 0; font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: var(--bg); color: var(--text); }
button, select, textarea, input { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: wait; opacity: .62; }
.topbar { display: flex; justify-content: space-between; gap: 24px; align-items: flex-start; padding: 28px clamp(18px, 4vw, 56px); border-bottom: 1px solid var(--border); background: var(--panel); }
.topbar h1 { margin: 2px 0 4px; font-size: clamp(1.65rem, 3vw, 2.25rem); }
.topbar p { margin: 0; color: var(--muted); max-width: 780px; }
.eyebrow { text-transform: uppercase; letter-spacing: .11em; font-size: .72rem; font-weight: 800; color: var(--muted); }
.status-stack { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.pill { display: inline-flex; align-items: center; min-height: 30px; padding: 5px 10px; border: 1px solid var(--border); border-radius: 999px; background: var(--panel-2); font-size: .78rem; }
.pill.muted { color: var(--muted); }
.layout { display: grid; grid-template-columns: 260px minmax(0, 1fr); gap: 24px; max-width: 1500px; margin: 0 auto; padding: 24px clamp(14px, 3vw, 36px) 50px; }
.sidebar { min-width: 0; }
.nav-tabs { display: grid; gap: 8px; }
.nav-btn { text-align: left; min-height: 46px; border: 1px solid transparent; border-radius: 10px; padding: 10px 12px; background: transparent; color: var(--text); }
.nav-btn:hover { background: var(--panel-2); }
.nav-btn.active { background: var(--panel); border-color: var(--border); box-shadow: var(--shadow); font-weight: 700; }
.sidebar-card { margin-top: 18px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel); font-size: .86rem; }
.sidebar-card p { margin: 7px 0 0; color: var(--muted); line-height: 1.45; }
.safety-card { border-left: 4px solid var(--success); }
.workspace { min-width: 0; position: relative; }
.panel, .result-section { display: none; background: var(--panel); border: 1px solid var(--border); border-radius: 16px; padding: clamp(16px, 3vw, 28px); box-shadow: var(--shadow); }
.panel.active-panel, .result-section:not(.hidden) { display: block; }
.welcome-strip { margin-bottom: 22px; padding: 13px 15px; border: 1px solid var(--border); border-left: 4px solid var(--accent); border-radius: 10px; background: var(--panel-2); line-height: 1.45; }
.panel-heading, .result-head, .code-head, .row { display: flex; align-items: center; gap: 12px; }
.panel-heading { justify-content: space-between; }
.panel-heading > div:first-child { display: flex; align-items: center; gap: 10px; min-width: 0; }
.panel-heading.spaced { margin-top: 28px; }
.panel h2, .result-section h2 { margin: 0; font-size: 1.25rem; }
.panel h3, .result-section h3 { margin: 0; font-size: 1rem; }
.section-subtitle { margin-top: 20px !important; }
.spaced-title { margin-top: 32px !important; }
.step { display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: var(--panel-2); border: 1px solid var(--border); font-weight: 800; flex: 0 0 auto; }
.help { margin: 8px 0 12px; color: var(--muted); font-size: .88rem; line-height: 1.5; }
.editor { width: 100%; min-height: 150px; resize: vertical; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); color: var(--text); padding: 14px; font-size: 16px; line-height: 1.45; outline: none; }
.editor:focus, select:focus, button:focus-visible, input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.editor.tall { min-height: 260px; }
.editor.huge { min-height: 380px; }
.editor.medium { min-height: 180px; margin-top: 12px; }
.editor.request { min-height: 130px; }
.editor.inline-editor { min-height: 88px; }
#schemaInput, #explainInput, #refineSqlInput, #refineSchemaInput, #schemaContentInput { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; }
.between { justify-content: space-between; }
.small-gap { margin-top: 8px; }
.counter { color: var(--muted); font-size: .78rem; }
.text-btn { border: 0; background: transparent; color: var(--accent); padding: 6px 2px; }
.quick-prompts { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0 12px; }
.prompt-chip, .refine-chip, .suggestion-btn { border: 1px solid var(--border); border-radius: 999px; background: var(--panel); color: var(--text); padding: 8px 11px; }
.prompt-chip:hover, .refine-chip:hover, .suggestion-btn:hover { border-color: var(--accent); }
.options-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; margin-top: 14px; }
.options-grid.single { grid-template-columns: minmax(0, 360px); }
.options-grid label, .dialog-label { display: grid; gap: 6px; font-size: .86rem; font-weight: 650; }
select, .text-input { min-height: 44px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel-2); color: var(--text); padding: 0 12px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.primary, .secondary { min-height: 44px; border-radius: 10px; padding: 9px 15px; font-weight: 700; }
.primary { border: 1px solid var(--accent); background: var(--accent); color: var(--accent-contrast); }
.secondary { border: 1px solid var(--border); background: var(--panel); color: var(--text); }
.secondary.small { min-height: 36px; padding: 6px 10px; font-size: .8rem; }
.danger-outline { color: var(--danger); }
.details-box { margin-top: 18px; border: 1px solid var(--border); border-radius: 12px; padding: 12px; }
.details-box summary { cursor: pointer; font-weight: 700; }
.advanced-options { background: var(--panel-2); }
.result-section { margin-top: 22px; }
.result-head { justify-content: space-between; align-items: flex-start; }
.badges { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.risk-badge { min-height: 30px; padding: 5px 10px; border-radius: 999px; border: 1px solid var(--border); font-size: .78rem; font-weight: 800; text-transform: uppercase; }
.risk-low { color: var(--success); }
.risk-medium { color: var(--warning); }
.risk-high, .risk-critical { color: var(--danger); }
.safety-banner { margin-top: 16px; display: flex; justify-content: space-between; gap: 16px; align-items: center; padding: 15px; border: 1px solid var(--border); border-left: 5px solid var(--warning); border-radius: 12px; background: var(--warning-bg); }
.safety-banner.critical { border-left-color: var(--danger); background: var(--danger-bg); }
.safety-banner p { margin: 5px 0 0; color: var(--muted); line-height: 1.45; }
.summary-card, .sql-card, .info-card, .suggestion-box, .safety-check-card, .inline-refine-box { margin-top: 16px; border: 1px solid var(--border); border-radius: 12px; padding: 16px; }
.summary-card { background: var(--panel-2); }
.summary-card p { margin: 8px 0 0; line-height: 1.55; }
.expected { color: var(--muted); }
.preview-first { border-left: 5px solid var(--success); background: var(--success-bg); }
.step-label { margin-bottom: 4px; color: var(--muted); font-size: .7rem; font-weight: 900; letter-spacing: .08em; }
.code-head { justify-content: space-between; align-items: flex-start; }
pre { margin: 12px 0 0; overflow: auto; border-radius: 10px; background: var(--code); color: var(--code-text); padding: 15px; max-height: 520px; }
code { font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
.safety-check-card { background: var(--panel-2); }
.safety-check-card ul { margin: 10px 0 0; padding-left: 20px; line-height: 1.55; }
.info-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.info-card ul { margin: 10px 0 0; padding-left: 20px; color: var(--muted); line-height: 1.55; }
.info-card li + li { margin-top: 6px; }
.wide-card { grid-column: 1 / -1; }
.empty-item { list-style: none; margin-left: -20px; font-style: italic; }
.suggestions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.inline-refine-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 10px; }
.result-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }
.card-list { display: grid; gap: 12px; margin-top: 16px; }
.library-card { border: 1px solid var(--border); border-radius: 12px; padding: 14px; background: var(--panel-2); }
.library-card-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; }
.library-card h3 { margin: 0; }
.library-card p { margin: 6px 0 0; color: var(--muted); font-size: .84rem; line-height: 1.45; }
.library-actions { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 10px; }
.template-badge { display: inline-flex; margin-top: 8px; color: var(--muted); font-size: .74rem; }
.conversation-wrap { margin-top: 24px; }
.conversation-list { display: grid; gap: 9px; margin-top: 10px; }
.conversation-message { border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; background: var(--panel-2); }
.conversation-message.user { border-left: 4px solid var(--accent); }
.conversation-message.assistant { border-left: 4px solid var(--success); }
.conversation-message .role { font-size: .72rem; font-weight: 800; text-transform: uppercase; color: var(--muted); }
.conversation-message p { margin: 4px 0 0; line-height: 1.4; }
.schema-dialog { width: min(760px, calc(100vw - 28px)); border: 1px solid var(--border); border-radius: 16px; background: var(--panel); color: var(--text); padding: 0; box-shadow: var(--shadow); }
.schema-dialog::backdrop { background: rgba(0,0,0,.46); }
.schema-dialog form { padding: 20px; }
.dialog-head { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; margin-bottom: 18px; }
.dialog-head h2 { margin: 2px 0 0; }
.dialog-label + .dialog-label { margin-top: 14px; }
.hidden { display: none !important; }
.toast { position: fixed; right: 18px; bottom: 18px; max-width: min(440px, calc(100vw - 36px)); border: 1px solid var(--border); border-radius: 12px; background: var(--panel); color: var(--text); padding: 12px 14px; box-shadow: var(--shadow); z-index: 50; }
.loading { position: absolute; inset: 0; min-height: 320px; z-index: 20; display: grid; place-items: center; align-content: center; gap: 8px; border-radius: 16px; background: color-mix(in srgb, var(--panel) 88%, transparent); backdrop-filter: blur(3px); text-align: center; }
.loading span { color: var(--muted); font-size: .85rem; }
.spinner { width: 38px; height: 38px; border-radius: 50%; border: 4px solid var(--border); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
footer { border-top: 1px solid var(--border); padding: 20px; text-align: center; color: var(--muted); font-size: .8rem; }
@media (max-width: 900px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar { display: grid; gap: 12px; }
  .nav-tabs { grid-template-columns: repeat(5, minmax(150px, 1fr)); overflow-x: auto; padding-bottom: 4px; }
  .nav-btn { white-space: nowrap; text-align: center; }
  .sidebar-card { display: none; }
}
@media (max-width: 640px) {
  .topbar { flex-direction: column; padding: 20px 16px; }
  .status-stack { justify-content: flex-start; }
  .layout { padding: 14px 10px 35px; }
  .panel, .result-section { border-radius: 12px; padding: 15px; }
  .panel-heading, .result-head, .code-head, .safety-banner { align-items: flex-start; flex-direction: column; }
  .options-grid, .info-grid, .inline-refine-row { grid-template-columns: 1fr; }
  .options-grid.single { grid-template-columns: 1fr; }
  .wide-card { grid-column: auto; }
  .primary, .secondary { width: 100%; }
  .library-actions .secondary, .code-head .secondary, .panel-heading .secondary, .dialog-head .secondary { width: auto; }
}
@media (prefers-reduced-motion: reduce) { .spinner { animation: none; } }