"""
Thème visuel de PolyglotRAG : thème Gradio + feuille de style.

Design tokens (couleurs, rayons, ombres) définis en variables CSS, avec
variantes clair / sombre (classe `.dark` posée par Gradio) et prise en
charge complète du sens d'écriture droite-à-gauche pour l'arabe.
"""
from __future__ import annotations

import gradio as gr

FONT_STACK = [
    gr.themes.GoogleFont("Inter"),
    "Noto Sans Arabic",
    "ui-sans-serif",
    "system-ui",
    "-apple-system",
    "Segoe UI",
    "sans-serif",
]
MONO_STACK = [gr.themes.GoogleFont("JetBrains Mono"), "ui-monospace", "SFMono-Regular", "monospace"]

HEAD_HTML = """
<meta name="theme-color" content="#4F46E5">
<link rel="preconnect" href="https://fonts.googleapis.com">
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
<link href="https://fonts.googleapis.com/css2?family=Noto+Sans+Arabic:wght@400;500;600;700&display=swap" rel="stylesheet">
"""


def build_theme() -> gr.themes.Base:
    return gr.themes.Base(
        primary_hue=gr.themes.colors.indigo,
        secondary_hue=gr.themes.colors.cyan,
        neutral_hue=gr.themes.colors.slate,
        radius_size=gr.themes.sizes.radius_lg,
        spacing_size=gr.themes.sizes.spacing_md,
        text_size=gr.themes.sizes.text_md,
        font=FONT_STACK,
        font_mono=MONO_STACK,
    ).set(
        body_background_fill="#F5F7FB",
        body_background_fill_dark="#0B1020",
        block_background_fill="#FFFFFF",
        block_background_fill_dark="#121829",
        block_border_color="#E4E8F0",
        block_border_color_dark="#232B42",
        block_shadow="0 1px 2px rgba(15,23,42,.04)",
        block_shadow_dark="none",
        input_background_fill="#FFFFFF",
        input_background_fill_dark="#0F1526",
        button_primary_background_fill="linear-gradient(135deg,#5B6CFF 0%,#4F46E5 100%)",
        button_primary_background_fill_dark="linear-gradient(135deg,#6D7CFF 0%,#5B54F0 100%)",
        button_primary_background_fill_hover="linear-gradient(135deg,#6D7CFF 0%,#5B54F0 100%)",
        button_primary_background_fill_hover_dark="linear-gradient(135deg,#7C89FF 0%,#6A63F5 100%)",
        button_primary_text_color="#FFFFFF",
        button_primary_text_color_dark="#FFFFFF",
    )


CUSTOM_CSS = r"""
/* ============================ Design tokens ============================ */
:root {
  --pg-bg: #F5F7FB;
  --pg-surface: #FFFFFF;
  --pg-surface-2: #F8FAFC;
  --pg-border: #E4E8F0;
  --pg-border-strong: #CBD3E1;
  --pg-text: #0F172A;
  --pg-text-2: #334155;
  --pg-muted: #64748B;
  --pg-primary: #4F46E5;
  --pg-primary-2: #5B6CFF;
  --pg-primary-soft: #EEF0FF;
  --pg-accent: #0891B2;
  --pg-ok: #047857;
  --pg-ok-soft: #ECFDF5;
  --pg-warn: #B45309;
  --pg-warn-soft: #FFF7E6;
  --pg-err: #B91C1C;
  --pg-err-soft: #FEF2F2;
  --pg-info: #1D4ED8;
  --pg-info-soft: #EFF6FF;
  --pg-track: #EDF0F6;
  --pg-radius: 14px;
  --pg-radius-sm: 10px;
  --pg-shadow: 0 1px 2px rgba(15,23,42,.04), 0 4px 16px -8px rgba(15,23,42,.10);
  --pg-shadow-lg: 0 12px 40px -16px rgba(30,41,90,.25);
}
.dark {
  --pg-bg: #0B1020;
  --pg-surface: #121829;
  --pg-surface-2: #161D31;
  --pg-border: #232B42;
  --pg-border-strong: #33405F;
  --pg-text: #E6E9F2;
  --pg-text-2: #C3CADB;
  --pg-muted: #8F9AB3;
  --pg-primary: #8B95FF;
  --pg-primary-2: #A5ADFF;
  --pg-primary-soft: rgba(109,124,255,.14);
  --pg-accent: #22D3EE;
  --pg-ok: #34D399;
  --pg-ok-soft: rgba(52,211,153,.12);
  --pg-warn: #FBBF24;
  --pg-warn-soft: rgba(251,191,36,.12);
  --pg-err: #F87171;
  --pg-err-soft: rgba(248,113,113,.12);
  --pg-info: #60A5FA;
  --pg-info-soft: rgba(96,165,250,.12);
  --pg-track: #1E2640;
  --pg-shadow: 0 1px 2px rgba(0,0,0,.3);
  --pg-shadow-lg: 0 12px 40px -16px rgba(0,0,0,.6);
}

/* ================================ Base ================================= */
.gradio-container {
  max-width: 1360px !important;
  margin: 0 auto !important;
  padding: 20px 24px 8px !important;
  color: var(--pg-text);
}
.gradio-container[dir="rtl"], .gradio-container[dir="rtl"] * {
  font-family: "Noto Sans Arabic", "Inter", system-ui, sans-serif;
}
footer { display: none !important; }
.pg-icon { flex: none; vertical-align: middle; }
.pg-num { font-variant-numeric: tabular-nums; }
.pg-muted { color: var(--pg-muted); font-size: .9rem; line-height: 1.55; margin: 0; }
.pg-html-flush, .pg-html-flush > div { padding: 0 !important; border: none !important; background: transparent !important; box-shadow: none !important; }

/* =============================== Header ================================ */
#pg-header {
  position: relative;
  background: var(--pg-surface);
  border: 1px solid var(--pg-border);
  border-radius: 18px;
  padding: 16px 20px !important;
  margin-bottom: 14px;
  box-shadow: var(--pg-shadow);
  align-items: center !important;
  gap: 16px !important;
  overflow: hidden;
}
#pg-header::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, #6D7CFF, #22D3EE 55%, #A78BFA);
}
.pg-brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.pg-logo { flex: none; border-radius: 11px; box-shadow: 0 6px 18px -6px rgba(91,108,255,.55); }
.pg-brand-text { min-width: 0; }
.pg-brand-title {
  font-size: 1.28rem; font-weight: 700; letter-spacing: -.02em; color: var(--pg-text);
  display: flex; align-items: center; flex-wrap: wrap; gap: 10px;
}
.pg-brand-tag {
  font-size: .72rem; font-weight: 600; letter-spacing: .02em; text-transform: uppercase;
  color: var(--pg-primary); background: var(--pg-primary-soft);
  padding: 3px 9px; border-radius: 999px;
}
.pg-brand-sub { margin-top: 3px; color: var(--pg-muted); font-size: .88rem; line-height: 1.45; }
#pg-header-right { align-items: flex-end !important; gap: 8px !important; }
.gradio-container[dir="rtl"] #pg-header-right { align-items: flex-start !important; }
#pg-ui-lang { max-width: 220px; min-width: 180px; }
#pg-ui-lang input { font-weight: 600 !important; }
.pg-status-wrap { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.gradio-container[dir="rtl"] .pg-status-wrap { align-items: flex-start; }
.pg-status {
  display: inline-flex; align-items: center; gap: 7px; white-space: nowrap;
  font-size: .78rem; font-weight: 600; padding: 4px 10px; border-radius: 999px;
}
.pg-status-ok { color: var(--pg-ok); background: var(--pg-ok-soft); }
.pg-status-warn { color: var(--pg-warn); background: var(--pg-warn-soft); }
.pg-dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 22%, transparent); }
.pg-status-langs { display: flex; gap: 4px; }
.pg-chip-lang {
  font-size: .64rem; font-weight: 700; letter-spacing: .04em; color: var(--pg-muted);
  border: 1px solid var(--pg-border); border-radius: 6px; padding: 1px 5px;
}

/* =============================== Banners =============================== */
.pg-banner {
  display: flex; align-items: center; gap: 10px; padding: 12px 16px;
  border-radius: var(--pg-radius-sm); font-size: .9rem; margin-bottom: 12px;
}
.pg-banner-warn { color: var(--pg-warn); background: var(--pg-warn-soft); border: 1px solid color-mix(in srgb, var(--pg-warn) 25%, transparent); }
.pg-banner-error { color: var(--pg-err); background: var(--pg-err-soft); border: 1px solid color-mix(in srgb, var(--pg-err) 25%, transparent); }

/* ================================ Tabs ================================= */
#pg-tabs { border: none !important; background: transparent !important; }
#pg-tabs .tab-wrapper, #pg-tabs > .tab-nav, #pg-tabs [role="tablist"] {
  border-bottom: 1px solid var(--pg-border) !important; gap: 4px; margin-bottom: 16px;
}
#pg-tabs button[role="tab"] {
  font-weight: 600 !important; font-size: .92rem !important; color: var(--pg-muted) !important;
  padding: 10px 16px !important; border: none !important; background: transparent !important;
  border-bottom: 2px solid transparent !important; border-radius: 0 !important;
  transition: color .15s ease, border-color .15s ease;
}
#pg-tabs button[role="tab"]:hover { color: var(--pg-text) !important; }
#pg-tabs button[role="tab"][aria-selected="true"], #pg-tabs button[role="tab"].selected {
  color: var(--pg-primary) !important; border-bottom-color: var(--pg-primary) !important;
}
#pg-tabs .tabitem { border: none !important; padding: 0 !important; background: transparent !important; }

/* ============================== Cards ================================== */
.pg-card {
  background: var(--pg-surface); border: 1px solid var(--pg-border);
  border-radius: var(--pg-radius); padding: 16px 18px; box-shadow: var(--pg-shadow);
}
.pg-card + .pg-card { margin-top: 12px; }
.pg-chart-grid > .pg-card { margin-top: 0; }
.pg-section-title {
  display: flex; align-items: center; gap: 8px; margin: 0 0 12px;
  font-size: .78rem; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
  color: var(--pg-muted);
}
.pg-section-title .pg-icon { color: var(--pg-primary); }
.gradio-container[dir="rtl"] .pg-section-title { letter-spacing: 0; }

/* ============================== Chat area ============================== */
#pg-chat-col { gap: 12px !important; }
#pg-chatbot {
  border: 1px solid var(--pg-border) !important; border-radius: 18px !important;
  background: var(--pg-surface) !important; box-shadow: var(--pg-shadow) !important;
}
#pg-chatbot .message, #pg-chatbot .message-content { font-size: .95rem; line-height: 1.65; }
#pg-chatbot .message p, #pg-chatbot .message li, #pg-chatbot .message h1,
#pg-chatbot .message h2, #pg-chatbot .message h3, #pg-chatbot .message td {
  unicode-bidi: plaintext; text-align: start;
}
#pg-chatbot .placeholder, #pg-chatbot .placeholder-content { height: 100%; }
.pg-welcome { text-align: center; max-width: 460px; margin: 0 auto; padding: 24px 12px; }
.pg-welcome .pg-logo { width: 52px; height: 52px; margin-bottom: 12px; }
.pg-welcome h3 { font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; margin: 0 0 6px; color: var(--pg-text); }
.pg-welcome p { color: var(--pg-muted); margin: 0; line-height: 1.55; }

#pg-input {
  border: 1px solid var(--pg-border) !important; border-radius: 16px !important;
  background: var(--pg-surface) !important; box-shadow: var(--pg-shadow-lg) !important;
  padding: 6px 8px !important;
}
#pg-input:focus-within { border-color: var(--pg-primary) !important; box-shadow: 0 0 0 4px var(--pg-primary-soft), var(--pg-shadow-lg) !important; }
#pg-input textarea { font-size: .97rem !important; border: none !important; box-shadow: none !important; background: transparent !important; unicode-bidi: plaintext; text-align: start; }
#pg-input button {
  background: linear-gradient(135deg,#5B6CFF,#4F46E5) !important; color: #fff !important;
  border-radius: 12px !important; border: none !important;
}

#pg-examples-label { margin: 2px 2px -4px; }
#pg-examples { gap: 8px !important; flex-wrap: wrap !important; }
#pg-examples button {
  flex: 0 1 auto !important; min-width: 0 !important; width: auto !important;
  font-size: .84rem !important; font-weight: 500 !important; color: var(--pg-text-2) !important;
  background: var(--pg-surface) !important; border: 1px solid var(--pg-border) !important;
  border-radius: 999px !important; padding: 6px 14px !important; box-shadow: none !important;
  transition: all .15s ease; unicode-bidi: plaintext;
}
#pg-examples button:hover { border-color: var(--pg-primary) !important; color: var(--pg-primary) !important; background: var(--pg-primary-soft) !important; }

/* ============================== Side panel ============================= */
#pg-side { gap: 12px !important; }
#pg-settings {
  background: var(--pg-surface) !important; border: 1px solid var(--pg-border) !important;
  border-radius: var(--pg-radius) !important; padding: 16px 16px 8px !important; box-shadow: var(--pg-shadow);
  gap: 10px !important;
}
#pg-settings > .form, #pg-settings .block { border: none !important; box-shadow: none !important; background: transparent !important; padding: 0 !important; }
#pg-clear { border-radius: 12px !important; font-weight: 600 !important; }

.pg-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.pg-pill {
  display: inline-flex; align-items: center; gap: 5px; white-space: nowrap;
  font-size: .74rem; font-weight: 600; padding: 3px 9px; border-radius: 999px;
}
.pg-pill-ok { color: var(--pg-ok); background: var(--pg-ok-soft); }
.pg-pill-warn { color: var(--pg-warn); background: var(--pg-warn-soft); }
.pg-pill-info { color: var(--pg-info); background: var(--pg-info-soft); }

.pg-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 14px 16px; margin: 0; }
.pg-stats > div { min-width: 0; }
.pg-stats dt { font-size: .72rem; color: var(--pg-muted); margin-bottom: 4px; font-weight: 500; }
.pg-stats dd { margin: 0; font-size: .92rem; font-weight: 600; color: var(--pg-text); display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.pg-stats dd small { color: var(--pg-muted); font-weight: 500; font-size: .74rem; }
.pg-stats dd.pg-num { font-size: 1.15rem; }

.pg-lang-badge {
  display: inline-flex; align-items: center; justify-content: center; min-width: 26px;
  font-size: .66rem; font-weight: 700; letter-spacing: .04em; line-height: 1;
  padding: 4px 6px; border-radius: 6px; color: var(--pg-primary); background: var(--pg-primary-soft);
}
.pg-lang-badge[data-lang="fr"] { color: #2563EB; background: rgba(37,99,235,.10); }
.pg-lang-badge[data-lang="en"] { color: #7C3AED; background: rgba(124,58,237,.10); }
.pg-lang-badge[data-lang="es"] { color: #C2410C; background: rgba(194,65,12,.10); }
.pg-lang-badge[data-lang="pt"] { color: #047857; background: rgba(4,120,87,.10); }
.pg-lang-badge[data-lang="ru"] { color: #BE123C; background: rgba(190,18,60,.10); }
.pg-lang-badge[data-lang="ar"] { color: #0E7490; background: rgba(14,116,144,.10); }
.dark .pg-lang-badge { filter: brightness(1.45) saturate(.9); }

.pg-meter { height: 6px; border-radius: 999px; background: var(--pg-track); overflow: hidden; margin-top: 6px; }
.pg-meter span { display: block; height: 100%; border-radius: inherit; }
.pg-meter-ok span { background: linear-gradient(90deg, #5B6CFF, #22D3EE); }
.pg-meter-warn span { background: linear-gradient(90deg, #F59E0B, #FBBF24); }

.pg-sources { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.pg-source {
  display: flex; gap: 12px; padding: 12px; border-radius: var(--pg-radius-sm);
  background: var(--pg-surface-2); border: 1px solid var(--pg-border);
}
.pg-source-idx {
  flex: none; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center;
  font-size: .72rem; font-weight: 700; color: #fff; background: linear-gradient(135deg,#5B6CFF,#4F46E5);
}
.pg-source-body { flex: 1; min-width: 0; }
.pg-source-file { display: flex; align-items: center; gap: 6px; font-weight: 600; font-size: .86rem; color: var(--pg-text); }
.pg-source-file span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pg-source-title { font-size: .8rem; color: var(--pg-muted); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pg-source-meta { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; margin-top: 6px; font-size: .76rem; color: var(--pg-muted); }
.pg-sep { opacity: .5; }

/* =============================== Admin ================================= */
#pg-admin-bar {
  background: var(--pg-surface) !important; border: 1px solid var(--pg-border) !important;
  border-radius: var(--pg-radius) !important; padding: 14px 16px !important; box-shadow: var(--pg-shadow);
  align-items: flex-end !important; margin-bottom: 14px;
}
#pg-admin-bar .block { border: none !important; box-shadow: none !important; background: transparent !important; padding: 0 !important; }
.pg-page-head { margin: 4px 2px 14px; }
.pg-page-head h2 { font-size: 1.35rem; font-weight: 700; letter-spacing: -.02em; margin: 0 0 4px; color: var(--pg-text); }
.pg-page-head p { margin: 0; color: var(--pg-muted); }
.pg-admin .pg-section-title { margin-top: 18px; }
.pg-admin .pg-section-title:first-child { margin-top: 0; }
.pg-kpi-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; }
.pg-kpi {
  background: var(--pg-surface); border: 1px solid var(--pg-border); border-radius: var(--pg-radius);
  padding: 14px 16px; box-shadow: var(--pg-shadow); min-width: 0;
}
.pg-kpi-head { display: flex; align-items: center; gap: 7px; color: var(--pg-muted); font-size: .78rem; font-weight: 500; }
.pg-kpi-head span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pg-kpi-head .pg-icon { color: var(--pg-primary); }
.pg-kpi-value { margin-top: 8px; font-size: 1.6rem; font-weight: 700; letter-spacing: -.02em; color: var(--pg-text); line-height: 1.15; }
.pg-kpi-hint { font-size: .74rem; color: var(--pg-muted); margin-top: 2px; }
.pg-chart-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 18px 0 12px; }
.pg-chart .pg-chart-title { font-weight: 600; font-size: .92rem; margin-bottom: 14px; color: var(--pg-text); }
.pg-bar-row { display: grid; grid-template-columns: 130px 1fr 74px; align-items: center; gap: 12px; padding: 6px 0; }
.pg-bar-label { display: flex; align-items: center; gap: 8px; font-size: .85rem; color: var(--pg-text-2); min-width: 0; }
.pg-bar-label span:last-child { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pg-bar-track { height: 10px; border-radius: 999px; background: var(--pg-track); overflow: hidden; }
.pg-bar-track span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg, #5B6CFF, #22D3EE); }
.gradio-container[dir="rtl"] .pg-bar-track span { background: linear-gradient(270deg, #5B6CFF, #22D3EE); margin-inline-start: 0; }
.pg-bar-value { text-align: end; font-weight: 600; font-size: .86rem; color: var(--pg-text); }
.pg-bar-value small { color: var(--pg-muted); font-weight: 500; margin-inline-start: 4px; }
.pg-table-wrap { overflow-x: auto; margin: 0 -4px; }
.pg-table { width: 100%; border-collapse: collapse; font-size: .86rem; }
.pg-table th {
  text-align: start; font-size: .72rem; font-weight: 600; letter-spacing: .04em; text-transform: uppercase;
  color: var(--pg-muted); padding: 8px 10px; border-bottom: 1px solid var(--pg-border); white-space: nowrap;
}
.pg-table td { padding: 10px; border-bottom: 1px solid var(--pg-border); color: var(--pg-text-2); white-space: nowrap; }
.pg-table tr:last-child td { border-bottom: none; }
.pg-table tbody tr:hover td { background: var(--pg-surface-2); }
.pg-table .pg-td-q { white-space: normal; min-width: 260px; color: var(--pg-text); font-weight: 500; unicode-bidi: plaintext; text-align: start; }
.pg-empty-state { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 10px; padding: 40px 20px; color: var(--pg-muted); }
.pg-empty-state .pg-icon { color: var(--pg-primary); }
.pg-empty-state p { margin: 0; max-width: 520px; line-height: 1.55; }

/* ============================ Architecture ============================= */
.pg-arch-hero {
  border-radius: 18px; padding: 26px 28px; margin-bottom: 16px; color: #fff;
  background: radial-gradient(120% 140% at 0% 0%, #5B6CFF 0%, #3B32B8 45%, #101736 100%);
  box-shadow: var(--pg-shadow-lg);
}
.pg-arch-hero h2 { margin: 0 0 6px; font-size: 1.45rem; font-weight: 700; letter-spacing: -.02em; color: #fff; }
.pg-arch-hero p { margin: 0; max-width: 760px; color: rgba(255,255,255,.82); line-height: 1.55; }
.pg-lane { margin-bottom: 16px; }
.pg-lane-head { display: flex; align-items: center; gap: 8px; font-weight: 600; font-size: .9rem; color: var(--pg-text); margin: 0 2px 10px; }
.pg-lane-dot { width: 10px; height: 10px; border-radius: 3px; }
.pg-lane-a { background: #22D3EE; }
.pg-lane-b { background: #6D7CFF; }
.pg-steps { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 12px; counter-reset: step; }
.pg-step {
  position: relative; background: var(--pg-surface); border: 1px solid var(--pg-border);
  border-radius: var(--pg-radius); padding: 14px 14px 16px; box-shadow: var(--pg-shadow);
}
.pg-step:not(:last-child)::after {
  content: ""; position: absolute; top: 30px; inset-inline-end: -10px; width: 8px; height: 8px;
  border-top: 2px solid var(--pg-border-strong); border-inline-end: 2px solid var(--pg-border-strong);
  transform: rotate(45deg); z-index: 1;
}
.gradio-container[dir="rtl"] .pg-step:not(:last-child)::after { transform: rotate(-45deg); }
.pg-step-icon {
  width: 34px; height: 34px; border-radius: 10px; display: grid; place-items: center;
  color: var(--pg-primary); background: var(--pg-primary-soft);
}
.pg-step-n { position: absolute; top: 14px; inset-inline-end: 14px; font-size: .72rem; font-weight: 700; color: var(--pg-muted); font-variant-numeric: tabular-nums; }
.pg-step-t { margin-top: 12px; font-weight: 600; font-size: .9rem; color: var(--pg-text); }
.pg-step-d { margin-top: 4px; font-size: .8rem; color: var(--pg-muted); line-height: 1.5; }
.pg-why-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.pg-why {
  display: flex; gap: 12px; align-items: flex-start; background: var(--pg-surface);
  border: 1px solid var(--pg-border); border-radius: var(--pg-radius); padding: 16px; box-shadow: var(--pg-shadow);
}
.pg-why .pg-icon { color: var(--pg-primary); margin-top: 2px; }
.pg-why b { color: var(--pg-text); font-size: .92rem; }
.pg-why p { margin: 4px 0 0; color: var(--pg-muted); font-size: .85rem; line-height: 1.55; }

/* =============================== Footer ================================ */
.pg-footer {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  color: var(--pg-muted); font-size: .78rem; padding: 18px 0 6px; text-align: center;
}

/* ============================= Responsive ============================== */
@media (max-width: 1100px) {
  .pg-kpi-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pg-steps { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pg-step::after { display: none; }
}
@media (max-width: 760px) {
  .gradio-container { padding: 12px 12px 4px !important; }
  #pg-header { flex-direction: column !important; align-items: stretch !important; }
  #pg-header-right, .pg-status-wrap { align-items: flex-start !important; }
  #pg-ui-lang { max-width: none; }
  .pg-brand-sub { display: none; }
  .pg-kpi-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .pg-chart-grid, .pg-why-grid { grid-template-columns: 1fr; }
  .pg-steps { grid-template-columns: 1fr 1fr; }
  .pg-bar-row { grid-template-columns: 96px 1fr 64px; }
}
"""