/* ── Tipografia auto-hospedada (same-origin; respeita CSP font-src 'self') ── */
@font-face {
    font-family: 'Inter';
    font-style: normal;
    font-weight: 100 900;
    font-display: swap;
    src: url('/static/assets/fonts/inter-var.woff2') format('woff2');
}
@font-face {
    font-family: 'Space Grotesk';
    font-style: normal;
    font-weight: 300 700;
    font-display: swap;
    src: url('/static/assets/fonts/space-grotesk-var.woff2') format('woff2');
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --font-size-chat: 14px;

    /* Famílias tipográficas */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-display: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Escala tipográfica (tokens disponíveis para padronização gradual) */
    --text-xs: 11px;
    --text-sm: 12px;
    --text-base: 13px;
    --text-md: 14px;
    --text-lg: 15px;

    /* Marca — roxo Cronológica (fonte única; --primary-rgb p/ alphas temáticos) */
    --primary: #660099;
    --primary-rgb: 102, 0, 153;
    --primary-dark: #4a006e;
    --primary-light: #f3e8ff;

    /* Cores semânticas (respondem ao tema) */
    --success: #059669;
    --success-text: #047857;
    --success-bg: #ecfdf5;
    --danger: #dc2626;
    --danger-text: #be123c;
    --danger-bg: #fff1f2;
    --danger-bg-strong: #fee2e2;
    --warning: #f59e0b;
    --warning-text: #b45309;
    --warning-bg: #fff7ed;
    --star: #f59e0b;

    --bg: #eeecf8;
    --surface: #ffffff;
    --border: #e8e8ec;
    --text: #0d0d0d;
    --text-muted: #6e6e80;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.07), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.10);
    --focus-ring: 0 0 0 3px rgba(var(--primary-rgb), 0.18);
    --sidebar-bg: #faf9fc;
    --messages-bg: #f4f4f6;
}

[data-theme="dark"] {
    --primary: #a855f7;
    --primary-rgb: 168, 85, 247;
    --primary-dark: #9333ea;
    --primary-light: #2d1b4e;

    --success: #34d399;
    --success-text: #6ee7b7;
    --success-bg: rgba(16, 185, 129, 0.13);
    --danger: #f87171;
    --danger-text: #fca5a5;
    --danger-bg: rgba(248, 113, 113, 0.13);
    --danger-bg-strong: rgba(248, 113, 113, 0.20);
    --warning: #fbbf24;
    --warning-text: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.14);
    --star: #fbbf24;

    --bg: #1e1b2e;
    --surface: #27243a;
    --border: #3d3860;
    --text: #e8e6f0;
    --text-muted: #9490b8;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
    --sidebar-bg: #201d30;
    --messages-bg: #1a1728;
}

[data-theme="crono"] {
    --primary: #c084fc;
    --primary-rgb: 192, 132, 252;
    --primary-dark: #a855f7;
    --primary-light: #3b1460;

    --success: #34d399;
    --success-text: #6ee7b7;
    --success-bg: rgba(16, 185, 129, 0.14);
    --danger: #f87171;
    --danger-text: #fca5a5;
    --danger-bg: rgba(248, 113, 113, 0.14);
    --danger-bg-strong: rgba(248, 113, 113, 0.22);
    --warning: #fbbf24;
    --warning-text: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.15);
    --star: #fbbf24;

    --bg: #1a0a2e;
    --surface: #220f40;
    --border: #4a2070;
    --text: #f0ebff;
    --text-muted: #a07cc8;
    --shadow-sm: 0 1px 3px rgba(80,0,140,0.35);
    --shadow-md: 0 8px 32px rgba(80,0,140,0.45);
    --sidebar-bg: #130822;
    --messages-bg: #170930;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    height: 100dvh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* ── Foco visível por teclado (não aparece no clique do mouse) ── */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
.avatar-option:focus-visible,
.theme-dot:focus-visible,
.send-btn:focus-visible,
.suggestion-chip:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 3px;
}

/* ── Respeita quem prefere menos movimento ── */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-delay: 0s !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ── App shell (sidebar + conteúdo) ──────────────── */
.app {
    display: flex;
    height: 100vh;
    height: 100dvh;
    width: 100%;
}

.layout {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    background: var(--surface);
}

/* Wrapper que serve de contexto para o botão scroll-to-bottom */
.messages-wrap {
    position: relative;
    flex: 1;
    min-height: 0;
    overflow: hidden;
}

/* ── Barra lateral (mini-rail + expandida, estilo ChatGPT) ── */
.sidebar {
    width: 280px;
    flex-shrink: 0;
    height: 100vh;
    height: 100dvh;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.25s ease;
}

/* Estado recolhido: vira uma mini-barra de ícones */
.app.sidebar-collapsed .sidebar {
    width: 64px;
}

.sidebar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 14px 10px;
    flex-shrink: 0;
}

.sidebar-logo {
    height: 30px;
    width: 30px;
    object-fit: contain;
    flex-shrink: 0;
}

.sidebar-toggle {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 5px;
    display: flex;
    align-items: center;
    border-radius: 6px;
    transition: background 0.15s, color 0.15s;
}

.sidebar-toggle:hover {
    background: var(--border);
    color: var(--text);
}

.new-chat-btn {
    margin: 0 12px 12px;
    background: var(--primary-light);
    color: var(--primary);
    border: 1.5px solid rgba(var(--primary-rgb), 0.15);
    border-radius: 10px;
    padding: 9px 12px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    white-space: nowrap;
    overflow: hidden;
    transition: background 0.15s, border-color 0.15s;
}

.new-chat-btn:hover {
    background: rgba(var(--primary-rgb), 0.18);
    border-color: rgba(var(--primary-rgb), 0.30);
}

/* ── Campo de busca na sidebar ───────────────────── */
.sidebar-search {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0 12px 8px;
    padding: 7px 10px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: 8px;
    transition: border-color 0.2s;
    color: var(--text-muted);
    flex-shrink: 0;
}

.sidebar-search:focus-within {
    border-color: var(--primary);
    color: var(--primary);
}

.sidebar-search-input {
    flex: 1;
    border: none;
    background: transparent;
    outline: none;
    font-size: 12px;
    font-family: inherit;
    color: var(--text);
    min-width: 0;
}

.sidebar-search-input::placeholder { color: var(--text-muted); }

.sidebar-search-clear {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 0;
    display: none;
    align-items: center;
    transition: color 0.15s;
}

.sidebar-search-clear:hover { color: var(--text); }
.sidebar-search-clear.visible { display: flex; }

/* Oculta busca quando sidebar está recolhida */
.app.sidebar-collapsed .sidebar-search { display: none; }

/* ── Modo recolhido: empilha ícones e esconde textos ── */
.app.sidebar-collapsed .sidebar-top {
    flex-direction: column;
    gap: 12px;
    padding: 14px 0 10px;
}

.app.sidebar-collapsed .new-chat-btn {
    margin: 0 auto 12px;
    width: 40px;
    height: 40px;
    padding: 0;
}

.app.sidebar-collapsed .nc-label {
    display: none;
}

.app.sidebar-collapsed .historico-list {
    display: none;
}

/* ── Header ──────────────────────────────────────── */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    padding: 14px 28px;
    flex-shrink: 0;
}

.header-inner {
    display: flex;
    align-items: center;
    gap: 14px;
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.logo {
    height: 52px;
    width: 120px;
    object-fit: contain;
    object-position: center;
    flex-shrink: 0;
}

.header-divider {
    width: 1px;
    height: 30px;
    background: var(--border);
    flex-shrink: 0;
}

.logout-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}


.logout-btn:hover {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    letter-spacing: -0.1px;
}

.title .wordmark {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    color: var(--primary);
    letter-spacing: -0.4px;
    margin-right: 7px;
}

.subtitle {
    font-size: 11px;
    color: var(--text-muted);
    display: block;
    margin-top: 2px;
    letter-spacing: 0.4px;
}

/* ── Messages ────────────────────────────────────── */
.messages {
    height: 100%;
    overflow-y: auto;
    padding: 28px 28px;
    display: flex;
    flex-direction: column;
    gap: 22px;
    scroll-behavior: smooth;
    background: var(--messages-bg);
}

.messages::-webkit-scrollbar {
    width: 4px;
}

.messages::-webkit-scrollbar-track {
    background: transparent;
}

.messages::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 999px;
}

.message {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.user-message {
    flex-direction: row;
    justify-content: flex-end;
}

.bot-message {
    flex-direction: row;
}

/* Avatars */
.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.bot-avatar {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-size: 12px;
    overflow: hidden;
}

.bot-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.user-avatar {
    background: var(--border);
    color: var(--text-muted);
    font-size: 12px;
}

/* Bubbles */
.bubble {
    max-width: 100%;
    padding: 13px 17px;
    border-radius: 20px;
    line-height: 1.65;
    font-size: var(--font-size-chat);
}

.user-message .bubble {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border-bottom-right-radius: 5px;
    box-shadow: 0 3px 10px rgba(var(--primary-rgb), 0.28);
}

.bot-message .bubble {
    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
    border-bottom-left-radius: 5px;
    box-shadow: var(--shadow-sm);
}

/* ── Badges ──────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 9px;
    border-radius: 999px;
    margin-bottom: 9px;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.badge-analitico {
    background: var(--primary-light);
    color: var(--primary);
}

.badge-documental {
    background: var(--success-bg);
    color: var(--success-text);
}

.badge-fora {
    background: var(--danger-bg);
    color: var(--danger-text);
}

/* ── Details ─────────────────────────────────────── */
.details {
    margin-top: 10px;
    border-top: 1px solid rgba(0, 0, 0, 0.06);
    padding-top: 9px;
}

.details summary {
    cursor: pointer;
    font-size: 12px;
    color: var(--text-muted);
    user-select: none;
    list-style: none;
    display: flex;
    align-items: center;
    gap: 5px;
}

.details summary::-webkit-details-marker {
    display: none;
}

.details summary::before {
    content: '›';
    font-size: 15px;
    transition: transform 0.2s;
    display: inline-block;
}

details[open] summary::before {
    transform: rotate(90deg);
}

.details-content {
    margin-top: 8px;
}

pre {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
    overflow-x: auto;
    font-size: 12px;
    margin-top: 6px;
    white-space: pre-wrap;
    word-break: break-word;
    color: var(--text);
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
    line-height: 1.6;
}

.sources-list {
    list-style: none;
    margin-top: 6px;
}

.sources-list li {
    padding: 4px 0;
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    align-items: flex-start;
    gap: 6px;
}

.sources-list li::before {
    content: "›";
    color: var(--primary);
    font-size: 14px;
    line-height: 1.2;
    flex-shrink: 0;
}

/* ── Loading ─────────────────────────────────────── */
.loading .bubble {
    display: flex;
    gap: 5px;
    align-items: center;
    padding: 16px 20px;
    min-width: 68px;
}

.dot {
    width: 7px;
    height: 7px;
    background: var(--primary);
    border-radius: 50%;
    animation: bounce 1.4s ease infinite;
    opacity: 0.5;
}

.dot:nth-child(2) {
    animation-delay: 0.18s;
}

.dot:nth-child(3) {
    animation-delay: 0.36s;
}

@keyframes bounce {

    0%,
    60%,
    100% {
        transform: translateY(0);
        opacity: 0.5;
    }

    30% {
        transform: translateY(-7px);
        opacity: 1;
    }
}

/* ── Input area ──────────────────────────────────── */
.input-area {
    background: var(--surface);
    border-top: 1px solid var(--border);
    padding: 10px 28px 10px;
    flex-shrink: 0;
}

.input-inner {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--bg);
    border: 1.5px solid var(--border);
    border-radius: 14px;
    padding: 8px 8px 8px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
    max-width: 1000px;
    margin: 0 auto;
}

.input-inner:focus-within {
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
    background: var(--surface);
}

.input {
    flex: 1;
    border: none;
    background: transparent;
    padding: 4px 4px;
    font-size: 14px;
    font-family: inherit;
    resize: none;
    outline: none;
    max-height: 120px;
    overflow-y: auto;
    line-height: 1.5;
    color: var(--text);
}

.input::placeholder {
    color: var(--text-muted);
}

.send-btn {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border: none;
    border-radius: 50%;
    width: 42px;
    height: 42px;
    cursor: pointer;
    flex-shrink: 0;
    transition: opacity 0.2s, transform 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(var(--primary-rgb), 0.30);
}

.send-btn:hover {
    opacity: 0.88;
    transform: scale(1.04);
}

.send-btn:active {
    transform: scale(0.96);
}

.send-btn:disabled {
    background: var(--border);
    box-shadow: none;
    cursor: default;
    transform: none;
    opacity: 1;
}

.send-btn .icon-stop { display: none; }
.send-btn.stop-mode .icon-send { display: none; }
.send-btn.stop-mode .icon-stop { display: block; }
.send-btn.stop-mode { cursor: pointer; }

/* ── Barra de favoritos ──────────────────────────── */
.favoritos-bar {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
    max-width: 1000px;
    margin: 6px auto 0;
    padding: 0 2px;
    min-height: 0;
}

.favoritos-bar:empty { display: none; }

.favoritos-label {
    display: flex;
    align-items: center;
    color: var(--star);
    flex-shrink: 0;
    opacity: 0.85;
}

.fav-chip {
    display: inline-flex;
    align-items: center;
    background: var(--primary-light);
    border: 1.5px solid rgba(245, 158, 11, 0.25);
    border-radius: 20px;
    overflow: hidden;
    transition: border-color 0.15s;
    max-width: 220px;
}

.fav-chip:hover {
    border-color: rgba(245, 158, 11, 0.55);
}

.fav-chip-text {
    background: none;
    border: none;
    padding: 5px 10px 5px 12px;
    font-size: 12px;
    font-family: inherit;
    color: var(--primary);
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
    line-height: 1.3;
}

.fav-chip-text:hover { opacity: 0.8; }

.fav-chip-remove {
    background: none;
    border: none;
    padding: 5px 8px 5px 2px;
    font-size: 13px;
    line-height: 1;
    color: var(--text-muted);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s, color 0.15s;
    flex-shrink: 0;
}

.fav-chip:hover .fav-chip-remove { opacity: 1; }
.fav-chip-remove:hover { color: var(--danger); }

.input-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
    text-align: center;
    opacity: 0.65;
}

/* ── Footer logo ─────────────────────────────────── */
.footer-logo {
    text-align: center;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border);
}

.footer-logo img {
    height: 72px;
    width: 240px;
    object-fit: contain;
    opacity: 0.88;
}

/* ── Suggestion chips ────────────────────────────── */
.suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 10px 0 42px;
    margin-top: -8px;
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.suggestion-chip {
    background: var(--primary-light);
    color: var(--primary);
    border: 1.5px solid rgba(var(--primary-rgb), 0.15);
    border-radius: 20px;
    padding: 7px 14px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    line-height: 1.3;
    transition: background 0.15s, border-color 0.15s;
}

.suggestion-break { flex-basis: 100%; height: 0; }

.suggestion-chip:hover {
    background: rgba(var(--primary-rgb), 0.18);
    border-color: rgba(var(--primary-rgb), 0.30);
}

/* ── Hero do empty state (saudação da Helô) ──────────────── */
.welcome-hero {
    margin: auto;
    max-width: 600px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 18px;
    padding: 24px 16px 8px;
}

.welcome-hero-avatar {
    width: 76px;
    height: 76px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.10),
                0 10px 28px rgba(var(--primary-rgb), 0.20);
}
.welcome-hero-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }

.welcome-hero-title {
    font-family: var(--font-display);
    font-size: 27px;
    font-weight: 600;
    letter-spacing: -0.6px;
    line-height: 1.2;
    color: var(--text);
}
.welcome-hero-title #welcome-name { color: var(--primary); }

.welcome-hero-sub {
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-muted);
    max-width: 460px;
    margin-top: -6px;
}
.welcome-hero-sub .welcome-wordmark {
    font-family: var(--font-display);
    font-weight: 600;
    color: var(--primary);
}

.welcome-cluster {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 9px;
}

.welcome-cluster-label {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted);
    opacity: 0.65;
}

.welcome-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

/* Entrada orquestrada — neutralizada por prefers-reduced-motion (global) */
@keyframes welcome-rise {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.welcome-hero > * {
    animation: welcome-rise 0.5s cubic-bezier(0.22, 1, 0.36, 1) both;
}
.welcome-hero > *:nth-child(1) { animation-delay: 0.02s; }
.welcome-hero > *:nth-child(2) { animation-delay: 0.10s; }
.welcome-hero > *:nth-child(3) { animation-delay: 0.18s; }
.welcome-hero > *:nth-child(4) { animation-delay: 0.26s; }
.welcome-hero > *:nth-child(5) { animation-delay: 0.34s; }

@media (max-width: 480px) {
    .welcome-hero-title { font-size: 23px; }
    .welcome-hero-sub { font-size: 13px; }
}

/* ── Markdown body ───────────────────────────────── */
.markdown-body > *:first-child { margin-top: 0; }
.markdown-body > *:last-child  { margin-bottom: 0; }

.markdown-body.streaming::after {
    content: '▋';
    display: inline;
    animation: blink-cursor 0.6s steps(1) infinite;
    color: var(--primary);
}

@keyframes blink-cursor {
    50% { opacity: 0; }
}

.markdown-body p { margin-bottom: 8px; font-size: var(--font-size-chat); }
.markdown-body li { margin-bottom: 4px; font-size: var(--font-size-chat); }

.markdown-body ul,
.markdown-body ol {
    margin: 8px 0 8px 20px;
}

/* .markdown-body li handled above with font-size var */

.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin: 12px 0 6px;
    font-weight: 700;
    line-height: 1.3;
}

.markdown-body h1 { font-size: 16px; }
.markdown-body h2 { font-size: 15px; }
.markdown-body h3 { font-size: 14px; }

.markdown-body code {
    background: var(--primary-light);
    color: var(--primary);
    padding: 2px 5px;
    border-radius: 4px;
    font-size: 12px;
    font-family: 'SF Mono', 'Cascadia Code', 'Fira Code', monospace;
}

.markdown-body table {
    border-collapse: collapse;
    width: 100%;
    margin: 10px 0;
    font-size: 13px;
    font-variant-numeric: tabular-nums;
}

.markdown-body th,
.markdown-body td {
    border: 1px solid var(--border);
    padding: 6px 10px;
    text-align: left;
}

.markdown-body th {
    background: var(--bg);
    font-weight: 600;
}

.markdown-body blockquote {
    border-left: 3px solid var(--primary);
    margin: 8px 0;
    padding: 4px 12px;
    color: var(--text-muted);
    font-style: italic;
}

/* ── Copy buttons ────────────────────────────────── */
.pre-wrap {
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 3px 8px;
    font-size: 11px;
    font-family: inherit;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.15s, border-color 0.15s;
    z-index: 1;
}

.copy-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
}

/* ── Action row (copiar / feedback / regenerar) ──── */
.action-row {
    display: flex;
    align-items: center;
    gap: 2px;
    margin-top: 8px;
    padding-left: 2px;
}

.action-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px 7px;
    border-radius: 6px;
    font-size: 11px;
    font-family: inherit;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    opacity: 0.55;
    transition: opacity 0.15s, background 0.15s, color 0.15s;
}

.action-btn:hover {
    opacity: 1;
    background: var(--bg);
    color: var(--primary);
}

.action-btn:disabled {
    cursor: default;
    opacity: 0.7;
}

/* Botão Regenerar — visível só na última mensagem */
.regen-btn { display: none; }
.last-bot-msg .regen-btn { display: inline-flex; }

/* Linha de ações abaixo da bubble do usuário */
.user-action-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 4px;
    padding-right: 2px;
}

/* Botão Favoritar (estrela) */
.fav-btn {
    color: var(--text-muted);
    opacity: 0.5;
    transition: opacity 0.15s;
}
.fav-btn:hover,
.fav-btn.fav-active {
    opacity: 1;
}
.fav-btn svg {
    fill: transparent;
    stroke: currentColor;
    stroke-width: 1.5;
    transition: fill 0.15s, stroke 0.15s;
}
.fav-btn.fav-active svg,
.fav-btn:hover svg {
    fill: var(--star);
    stroke: var(--star);
}

/* Estados de feedback avaliado */
.feedback-pos-active {
    color: var(--success) !important;
    opacity: 1 !important;
}

.feedback-neg-active {
    color: var(--danger) !important;
    opacity: 1 !important;
}

/* ── Header actions (nome + botões) ──────────────── */
.header-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.header-user {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
    white-space: nowrap;
}

.clear-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.clear-btn:hover {
    background: var(--danger);
    border-color: var(--danger);
    color: white;
}

/* ── Botão histórico ─────────────────────────────── */
.history-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.history-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* ── Painel de histórico ─────────────────────────── */
.historico-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.25);
    z-index: 100;
}

.historico-overlay.open { display: block; }

.historico-panel {
    position: fixed;
    top: 0;
    right: -380px;
    width: 360px;
    height: 100vh;
    height: 100dvh;
    background: var(--surface);
    box-shadow: -4px 0 24px rgba(0,0,0,0.12);
    z-index: 101;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

.historico-panel.open { right: 0; }

.historico-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 700;
    font-size: 15px;
    color: var(--text);
    flex-shrink: 0;
}

.historico-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    padding: 0 4px;
}

.historico-close:hover { color: var(--text); }

.historico-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.historico-item {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 8px 8px 8px 12px;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: border-color 0.15s;
    position: relative;
}

.historico-item:hover { border-color: var(--primary); }

.historico-item-content {
    flex: 1;
    min-width: 0;
    cursor: pointer;
}

/* ── Cabeçalhos de grupo na sidebar (Hoje, Ontem...) ── */
.hist-group-header {
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    color: var(--text-muted);
    padding: 10px 12px 4px;
    opacity: 0.75;
    user-select: none;
}

.hist-group-header:first-child {
    padding-top: 4px;
}

/* Botão ⋯ — visível só no hover do item */
.hist-menu-btn {
    flex-shrink: 0;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 4px 6px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    opacity: 0;
    transition: opacity 0.15s, background 0.15s, color 0.15s;
}

.historico-item:hover .hist-menu-btn {
    opacity: 1;
}

.hist-menu-btn:hover {
    background: var(--border);
    color: var(--text);
}

/* Mini-dropdown do ⋯ */
.hist-menu {
    position: fixed;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.12);
    z-index: 200;
    min-width: 130px;
    padding: 4px;
}

.hist-menu-item {
    width: 100%;
    background: none;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    text-align: left;
    color: var(--text);
    transition: background 0.15s;
    display: flex;
    align-items: center;
    gap: 8px;
    line-height: 1;
}

.hist-menu-item svg {
    display: block;
    flex-shrink: 0;
}

.hist-menu-item:hover { background: var(--bg); }

.hist-menu-separator {
    height: 1px;
    background: var(--border);
    margin: 4px 8px;
}

.hist-menu-delete { color: var(--danger); }
.hist-menu-delete:hover { background: var(--danger-bg); }

/* Conversa ativa (aberta no momento) */
.historico-item.ativa {
    background: var(--primary-light);
    border-color: var(--primary);
}

.historico-item.ativa .historico-item-pergunta {
    color: var(--primary);
}

/* Item fixado */
.historico-item.pinned {
    border-color: var(--primary);
    border-left-width: 3px;
}

.hist-pin-icon {
    flex-shrink: 0;
    color: var(--primary);
    vertical-align: middle;
    margin-right: 3px;
}

/* Input de renomear inline na sidebar */
.rename-input {
    width: 100%;
    border: 1.5px solid var(--primary);
    border-radius: 6px;
    padding: 2px 6px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: var(--text);
    background: var(--surface);
    outline: none;
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.18);
}

.historico-item-data {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.historico-item-pergunta {
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 4px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.historico-item-resposta {
    font-size: 12px;
    color: var(--text-muted);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.historico-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 999px;
    text-transform: uppercase;
    margin-bottom: 6px;
}

.historico-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 13px;
    padding: 24px;
}

/* ── Timestamps ──────────────────────────────────── */
.bubble-col {
    display: flex;
    flex-direction: column;
    max-width: 72%;
}

.bot-message .bubble-col {
    align-items: flex-start;
}

.user-message .bubble-col {
    align-items: flex-end;
}

.msg-time {
    font-size: 10px;
    color: var(--text-muted);
    opacity: 0.6;
    margin-top: 4px;
    padding: 0 4px;
}

/* ── Card de usuário (rodapé da sidebar) ─────────── */
.sidebar-user {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border-top: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s;
    border-radius: 0 0 0 0;
}

.sidebar-user:hover { background: var(--bg); }

.app.sidebar-collapsed .sidebar-user {
    justify-content: center;
    padding: 12px 0;
}

.app.sidebar-collapsed .sidebar-user-name,
.app.sidebar-collapsed .sidebar-user-gear {
    display: none;
}

.sidebar-user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    letter-spacing: -0.5px;
}

.sidebar-user-name {
    flex: 1;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.sidebar-user-gear {
    color: var(--text-muted);
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.15s;
}

.sidebar-user:hover .sidebar-user-gear { opacity: 1; }

/* ── Modal de configurações ──────────────────────── */
/* ── Modal de inatividade ──────────────────────────── */
.inatividade-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 500;
}

.inatividade-overlay.open { display: block; }

.inatividade-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: 0 16px 48px rgba(0,0,0,0.25);
    z-index: 501;
    padding: 32px 24px 24px;
    text-align: center;
}

.inatividade-modal.open { display: block; }

.inatividade-icon {
    color: var(--primary);
    margin-bottom: 12px;
}

.inatividade-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 8px;
}

.inatividade-text {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0;
}

.inatividade-countdown {
    font-family: var(--font-display);
    font-size: 48px;
    font-weight: 600;
    color: var(--primary);
    line-height: 1.1;
    margin: 12px 0;
    font-variant-numeric: tabular-nums;
}

.inatividade-btn {
    margin-top: 20px;
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 10px;
    padding: 11px 16px;
    font-size: 14px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s;
}

.inatividade-btn:hover { opacity: 0.85; }

.settings-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.35);
    z-index: 300;
}

.settings-overlay.open { display: block; }

.settings-modal {
    display: none;
    position: fixed;
    bottom: 70px;
    left: 16px;
    width: 320px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.18);
    z-index: 301;
    overflow: hidden;
    max-height: calc(100vh - 100px);
    flex-direction: column;
}

.settings-modal.open { display: flex; }

.settings-scroll {
    overflow-y: auto;
    flex: 1;
}

.settings-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}

.settings-close {
    background: none;
    border: none;
    font-size: 22px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    padding: 0 4px;
    transition: color 0.15s;
}

.settings-close:hover { color: var(--text); }

/* Cartão do usuário no topo do modal */
.settings-user-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.settings-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    background: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 15px;
    color: white;
}

.settings-user-avatar img { width: 100%; height: 100%; object-fit: cover; }

.settings-user-info { display: flex; flex-direction: column; gap: 2px; }

.settings-user-name {
    font-size: 14px;
    font-weight: 700;
    color: var(--text);
}

.settings-user-role {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: capitalize;
}

/* Itens colapsáveis */
.settings-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 20px;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s;
    user-select: none;
}

.settings-item:hover { background: var(--bg); }

.settings-item-left {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
}

.settings-item-left svg { color: var(--text-muted); flex-shrink: 0; }

.settings-chevron {
    color: var(--text-muted);
    transition: transform 0.2s;
    flex-shrink: 0;
}

.settings-item.open .settings-chevron { transform: rotate(90deg); }

.settings-item-body {
    display: none;
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
}

.settings-item-body .settings-input {
    background: var(--surface);
    border-color: var(--border);
}

.settings-item-body.open { display: block; }

.settings-item-logout {
    border-bottom: none;
    margin-top: 2px;
}

.settings-item-logout .settings-item-left { color: var(--danger); }
.settings-item-logout .settings-item-left svg { color: var(--danger); }
.settings-item-logout:hover { background: var(--danger-bg-strong); }

.settings-section {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.settings-section:last-child { border-bottom: none; }

.settings-label {
    display: block;
    font-size: 13px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 4px;
}

.settings-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 10px;
}

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

.settings-input {
    flex: 1;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 13px;
    font-family: inherit;
    outline: none;
    background: var(--bg);
    color: var(--text);
    transition: border-color 0.2s;
}

.settings-input:focus {
    border-color: var(--primary);
    box-shadow: var(--focus-ring);
    background: var(--surface);
}

.settings-save-btn {
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: opacity 0.2s;
    white-space: nowrap;
}

.settings-save-btn:hover { opacity: 0.85; }

.settings-feedback {
    font-size: 12px;
    margin-top: 6px;
    min-height: 16px;
}

.settings-feedback.ok  { color: var(--success-text); }
.settings-feedback.err { color: var(--danger-text); }

.settings-category {
    padding: 10px 20px 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    background: var(--bg);
    border-bottom: 1px solid var(--border);
}

.settings-senha-form {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 4px;
}

.settings-senha-form .settings-input {
    width: 100%;
    box-sizing: border-box;
}

.settings-pw-req-list {
    display: flex;
    flex-direction: column;
    gap: 3px;
    margin-top: 6px;
}

.pw-req { font-size: 11px; color: var(--danger); transition: color 0.2s; }
.pw-req.ok { color: var(--success); }

.settings-logout-btn {
    width: 100%;
    background: none;
    border: 1.5px solid var(--danger);
    border-radius: 8px;
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 600;
    color: var(--danger);
    cursor: pointer;
    font-family: inherit;
    transition: background 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.settings-logout-btn:hover { background: var(--danger-bg-strong); }

/* ── Grade de avatares ───────────────────────────── */
.avatar-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.avatar-option {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    font-size: 13px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.avatar-option svg { display: block; }

.avatar-option:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.22);
}

.avatar-option.active {
    transform: scale(1.08);
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--primary), 0 2px 8px rgba(0,0,0,0.2);
}

/* ── Barra de confirmação nas seções de personalização ── */
.settings-confirm-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0 2px;
    margin-top: 12px;
    border-top: 1px solid var(--border);
    gap: 8px;
}

.settings-selected-label {
    font-size: 12px;
    color: var(--text-muted);
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.settings-selected-label strong {
    color: var(--primary);
    font-weight: 600;
}

/* Círculos seletores de tema */
.theme-btns {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.theme-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.theme-label {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.15s;
}

.theme-dot.active + .theme-label,
.theme-option:has(.theme-dot.active) .theme-label {
    color: var(--primary);
    font-weight: 700;
}

.theme-dot {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 0;
    appearance: none;
    -webkit-appearance: none;
    flex-shrink: 0;
    transition: transform 0.15s, box-shadow 0.15s;
    box-shadow: 0 2px 6px rgba(0,0,0,0.25);
}

.theme-dot:hover {
    transform: scale(1.12);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.theme-dot.active {
    transform: scale(1.08);
    box-shadow: 0 0 0 2px var(--surface), 0 0 0 4.5px var(--primary), 0 2px 8px rgba(0,0,0,0.25);
}

/* ═══════════════════════════════════════════════════
   RESPONSIVIDADE MOBILE
   ═══════════════════════════════════════════════════ */

/* Botão hambúrguer — oculto no desktop, visível no mobile */
.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    padding: 6px;
    border-radius: 6px;
    align-items: center;
    flex-shrink: 0;
    transition: background 0.15s, color 0.15s;
}
.mobile-menu-btn:hover { background: var(--border); color: var(--primary); }

/* Overlay mobile da sidebar */
.sidebar-mobile-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 199;
}
.app.sidebar-mobile-open .sidebar-mobile-overlay { display: block; }

/* ── Tablet / Mobile ≤ 768px ─────────────────────── */
@media (max-width: 768px) {

    /* Sidebar vira drawer fixo */
    .sidebar {
        position: fixed !important;
        left: -290px;
        top: 0;
        bottom: 0;
        z-index: 200;
        width: 280px !important;
        transition: left 0.28s ease;
        box-shadow: none;
    }

    .app.sidebar-mobile-open .sidebar {
        left: 0;
        box-shadow: 4px 0 24px rgba(0,0,0,0.22);
    }

    /* Cancela o colapso de rail no mobile */
    .app.sidebar-collapsed .sidebar { margin-left: 0 !important; }
    .app.sidebar-collapsed .sidebar-top { flex-direction: row; gap: 0; padding: 14px 14px 10px; }
    .app.sidebar-collapsed .new-chat-btn { margin: 0 12px 12px; width: auto; height: auto; padding: 9px 12px; }
    .app.sidebar-collapsed .nc-label { display: inline; }
    .app.sidebar-collapsed .historico-list { display: flex; }
    .app.sidebar-collapsed .sidebar-search { display: flex; }
    .app.sidebar-collapsed .sidebar-user { justify-content: flex-start; padding: 12px 14px; }
    .app.sidebar-collapsed .sidebar-user-name,
    .app.sidebar-collapsed .sidebar-user-gear { display: inline; }

    /* Hambúrguer visível */
    .mobile-menu-btn { display: flex; }

    /* Header */
    .header { padding: 10px 16px; }
    .header-inner { gap: 8px; max-width: 100%; }
    .header-divider { display: none; }
    .subtitle { display: none; }
    .title { font-size: 13px; }
    .logo { width: 90px; height: 38px; }
    .header-user { display: none; }

    /* Mensagens */
    .messages { padding: 16px 12px; gap: 16px; }
    .message { max-width: 100%; }
    .bubble-col { max-width: 88%; }

    /* Input */
    .input-area { padding: 8px 12px 10px; }
    .input-inner { max-width: 100%; }
    .input-hint { display: none; }
    .footer-logo { display: none; }
    /* Evita o auto-zoom do iOS ao focar o campo (fonte < 16px dispara o zoom) */
    .input { font-size: 16px; }

    /* Suggestions / chips do hero em scroll horizontal */
    .suggestions,
    .welcome-chips {
        flex-wrap: nowrap;
        overflow-x: auto;
        padding: 0 12px 4px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        max-width: 100%;
    }
    .suggestions::-webkit-scrollbar,
    .welcome-chips::-webkit-scrollbar { display: none; }
    .suggestion-chip { flex-shrink: 0; }

    /* Touch não tem :hover — controles revelados no hover ficam sempre visíveis */
    .hist-menu-btn,
    .fav-chip-remove,
    .sidebar-user-gear { opacity: 1; }

    /* Modal de configurações — ocupa largura da tela */
    .settings-modal {
        left: 8px;
        right: 8px;
        width: auto;
        bottom: 8px;
        max-height: 85vh;
        overflow-y: auto;
    }

}

/* ── Mobile pequeno ≤ 480px ──────────────────────── */
@media (max-width: 480px) {
    .title { font-size: 12px; letter-spacing: 0; }
    .logo { width: 70px; }
    .bubble-col { max-width: 92%; }
    .bubble { font-size: 13px; }

    .avatar-grid { grid-template-columns: repeat(4, 1fr); }
    .settings-modal { left: 0; right: 0; bottom: 0; border-radius: 16px 16px 0 0; }
}

/* ── Toast notifications ────────────────────────────── */
#toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
    pointer-events: none;
}

.toast {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 10px;
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    color: white;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.22);
    opacity: 0;
    transform: translateX(16px);
    transition: opacity 0.22s ease, transform 0.22s ease;
    max-width: 300px;
    cursor: pointer;
    pointer-events: auto;
}

.toast.toast-show {
    opacity: 1;
    transform: translateX(0);
}

.toast-ok   { background: var(--success); }
.toast-err  { background: var(--danger); }
.toast-info { background: var(--primary); }

@media (max-width: 768px) {
    #toast-container {
        bottom: 80px;
        right: 12px;
        left: 12px;
    }
    .toast { max-width: 100%; }
}

/* ── Visualização de dados (tabela + gráfico + CSV) ── */
.data-viz {
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid var(--border);
}


.chart-wrap {
    position: relative;
    width: 100%;
    height: 240px;
    margin-bottom: 10px;
}

.chart-wrap canvas {
    display: block;
}

.csv-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    color: var(--text-muted);
    cursor: pointer;
    transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.csv-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--primary-light);
}

/* Bubble-col mais larga quando há visualização de dados */
.bubble-col:has(.data-viz) {
    max-width: min(92%, 820px);
}

@media (max-width: 768px) {
    .bubble-col:has(.data-viz) {
        max-width: 96%;
    }

    .chart-wrap {
        height: 200px;
    }
}

/* ── Cursor de typewriter ────────────────────────────── */
.bubble-col.typewriting .markdown-body::after {
    content: '▋';
    color: var(--primary);
    animation: blink-cursor 0.65s step-end infinite;
    font-size: 13px;
}

@keyframes blink-cursor {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

/* ── Modal de confirmação ────────────────────────────── */
.confirm-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    z-index: 600;
}
.confirm-overlay.open { display: block; }

.confirm-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 320px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.25);
    z-index: 601;
    padding: 24px;
}
.confirm-modal.open { display: block; }

.confirm-title {
    font-size: 15px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 8px;
}

.confirm-msg {
    font-size: 13px;
    color: var(--text-muted);
    margin: 0 0 20px;
    line-height: 1.55;
}

.confirm-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
}

.confirm-cancel-btn {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: var(--text-muted);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}
.confirm-cancel-btn:hover { background: var(--bg); }

.confirm-ok-btn {
    background: var(--primary);
    border: none;
    border-radius: 8px;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: white;
    cursor: pointer;
    transition: opacity 0.15s;
}
.confirm-ok-btn:hover { opacity: 0.85; }
.confirm-ok-btn.danger { background: var(--danger); }

/* ── Botão scroll-to-bottom ──────────────────────────── */
.scroll-bottom-btn {
    position: absolute;
    bottom: 16px;
    right: 20px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--surface);
    border: 1.5px solid var(--border);
    color: var(--text-muted);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 50;
    transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.scroll-bottom-btn.visible { display: flex; }
.scroll-bottom-btn:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* ── Contador de caracteres ──────────────────────────── */
.char-counter {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.4;
    flex-shrink: 0;
    padding: 0 2px;
    min-width: 28px;
    text-align: right;
    line-height: 1;
    transition: color 0.2s, opacity 0.2s;
    align-self: center;
}
.char-counter.warn { color: var(--warning); opacity: 1; }
.char-counter.over { color: var(--danger); opacity: 1; }

/* ── Posicionamento do modal de configurações ────────── */
@media (min-width: 769px) {
    .app:not(.sidebar-collapsed) .settings-modal {
        left: 292px;
    }
    .app.sidebar-collapsed .settings-modal {
        left: 76px;
    }
}

/* ── Tabela de visualização de dados no chat ─────────── */
.viz-table-wrap {
    overflow-x: auto;
    margin: 10px 0 6px;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.viz-table {
    border-collapse: collapse;
    width: 100%;
    font-size: 12px;
}

.viz-table th {
    background: var(--bg);
    font-weight: 700;
    padding: 8px 12px;
    border-bottom: 2px solid var(--border);
    text-align: left;
    white-space: nowrap;
    color: var(--text-muted) !important;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.viz-table td {
    padding: 6px 12px;
    border-bottom: 1px solid var(--border);
    color: var(--text) !important;
    white-space: nowrap;
    font-size: 13px;
}

/* Tudo alinhado à esquerda; números mantêm dígitos tabulares p/ leitura */
.viz-table th,
.viz-table td {
    text-align: left;
}

.viz-table td.col-num {
    font-variant-numeric: tabular-nums;
}

.viz-table tbody tr:last-child td { border-bottom: none; }
.viz-table tbody tr:hover td { background: var(--bg); }

/* #4 Cabeçalho clicável p/ ordenar */
.viz-table th.viz-th { cursor: pointer; user-select: none; }
.viz-table th.viz-th:hover { color: var(--primary); }
.viz-sort-ind { font-size: 10px; opacity: 0.8; }

/* #2 Variação Δ% mês-a-mês */
.viz-delta { font-variant-numeric: tabular-nums; font-weight: 600; }
.viz-delta-up   { color: #1a9d56; }
.viz-delta-down { color: #d23f3f; }

/* #5 Linha de total */
.viz-table tfoot .viz-total td {
    font-weight: 700;
    border-top: 2px solid var(--border);
    background: var(--bg);
}

.viz-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 4px;
}

.viz-truncated {
    font-size: 11px;
    color: var(--text-muted);
    opacity: 0.7;
}

/* ── Skeleton loading no histórico ──────────────────── */
.hist-skeleton { padding: 8px 12px 10px; display: flex; flex-direction: column; gap: 7px; }
.hist-sk-date { height: 9px; width: 40%; border-radius: 4px; }
.hist-sk-title { height: 11px; width: 80%; border-radius: 4px; }
.hist-sk-date, .hist-sk-title {
    background: linear-gradient(90deg, var(--border) 25%, var(--bg) 50%, var(--border) 75%);
    background-size: 200% 100%;
    animation: sk-shimmer 1.4s infinite;
}
@keyframes sk-shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

/* ── Toggle switch (notificações) ───────────────────── */
.toggle-switch { width: 40px; height: 22px; border-radius: 11px; background: var(--border); border: none; cursor: pointer; position: relative; transition: background 0.2s; flex-shrink: 0; }
.toggle-switch.on { background: var(--primary); }
.toggle-switch::after { content: ''; position: absolute; width: 16px; height: 16px; border-radius: 50%; background: white; top: 3px; left: 3px; transition: transform 0.2s; box-shadow: 0 1px 3px rgba(0,0,0,0.2); }
.toggle-switch.on::after { transform: translateX(18px); }
.settings-item-inline { cursor: default !important; user-select: none; }

/* ── Ver mais / Ver menos ────────────────────────────── */
.markdown-body.collapsed { max-height: 200px; overflow: hidden; mask-image: linear-gradient(to bottom, black 55%, transparent 100%); -webkit-mask-image: linear-gradient(to bottom, black 55%, transparent 100%); }
.ver-mais-btn { display: flex; align-items: center; gap: 4px; background: none; border: none; color: var(--primary); font-size: 12px; font-weight: 600; font-family: inherit; cursor: pointer; padding: 4px 0; opacity: 0.8; transition: opacity 0.15s; }
.ver-mais-btn:hover { opacity: 1; }

/* ── Botões de tamanho de fonte ─────────────────────── */
.font-size-btns { display: flex; gap: 4px; align-items: center; }
.font-size-btn { background: var(--bg); border: 1.5px solid var(--border); border-radius: 6px; cursor: pointer; color: var(--text-muted); font-family: serif; font-weight: 700; line-height: 1; display: flex; align-items: center; justify-content: center; transition: all 0.15s; }
#fs-small  { font-size: 11px; width: 26px; height: 26px; }
#fs-medium { font-size: 14px; width: 30px; height: 30px; }
#fs-large  { font-size: 17px; width: 34px; height: 34px; }
.font-size-btn.active { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
/* ── Botão Reportar problema ─────────────────────── */
.report-btn { color: var(--text-muted); }
.report-btn:hover { color: var(--danger); background: var(--danger-bg); }

/* ── Modal Reportar problema ─────────────────────── */
.modal-relato-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    z-index: 1200;
    backdrop-filter: blur(2px);
}
.modal-relato-overlay.open { display: block; }
.modal-relato {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 1201;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.25);
    width: min(440px, 92vw);
    overflow: hidden;
}
.modal-relato.open { display: flex; flex-direction: column; }
.modal-relato-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px 12px;
    font-weight: 700;
    font-size: 15px;
    color: var(--text);
    border-bottom: 1px solid var(--border);
}
.modal-relato-close {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-muted);
    line-height: 1;
    padding: 0 2px;
}
.modal-relato-close:hover { color: var(--text); }
.modal-relato-body { padding: 16px 20px; display: flex; flex-direction: column; gap: 10px; }
.modal-relato-hint { font-size: 13px; color: var(--text-muted); margin: 0; line-height: 1.45; }
.modal-relato-body textarea {
    width: 100%;
    box-sizing: border-box;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    font-family: inherit;
    color: var(--text);
    background: var(--bg);
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
    line-height: 1.5;
}
.modal-relato-body textarea:focus { border-color: var(--primary); }
.relato-feedback-msg { font-size: 12px; margin: 0; min-height: 16px; }
.relato-feedback-msg.ok  { color: var(--success); }
.relato-feedback-msg.err { color: var(--danger); }
.modal-relato-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px 16px;
    border-top: 1px solid var(--border);
}
.modal-relato-btn-cancel {
    background: none;
    border: 1.5px solid var(--border);
    border-radius: 8px;
    padding: 7px 16px;
    font-size: 13px;
    font-family: inherit;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}
.modal-relato-btn-cancel:hover { border-color: var(--text-muted); color: var(--text); }
.modal-relato-btn-send {
    background: var(--primary);
    border: none;
    border-radius: 8px;
    padding: 7px 18px;
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: white;
    cursor: pointer;
    transition: opacity 0.15s;
}
.modal-relato-btn-send:hover { opacity: 0.85; }
.modal-relato-btn-send:disabled { opacity: 0.5; cursor: not-allowed; }

/* ── Esclarecimento (desambiguação) — botões de opção clicáveis ── */
.clarify-options {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
}
.clarify-btn {
    padding: 8px 14px;
    border: 1.5px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    color: var(--text);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.clarify-btn:hover:not(:disabled) {
    border-color: var(--primary);
    background: var(--primary-light);
    color: var(--primary);
}
.clarify-btn:disabled { opacity: 0.55; cursor: default; }
.clarify-btn-chosen {
    border-color: var(--primary);
    background: var(--primary);
    color: #fff;
    opacity: 1;
}

/* ═══════════════════════════════════════════════════
   PULSO — KPIs glanceáveis do hero (empty state)
   ═══════════════════════════════════════════════════ */
.pulso-mount { width: 100%; max-width: 680px; }
.pulso-mount:empty { display: none; }

.pulso-head {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 10px; padding: 0 2px;
}
.pulso-eyebrow {
    display: flex; align-items: center; gap: 8px;
    font-size: 10px; font-weight: 700; letter-spacing: 0.12em;
    text-transform: uppercase; color: var(--text-muted);
}
.pulso-live {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--success); position: relative; flex-shrink: 0;
}
.pulso-live::after {
    content: ''; position: absolute; inset: -4px; border-radius: 50%;
    background: var(--success); opacity: 0.35;
    animation: pulso-ping 1.8s cubic-bezier(0, 0, 0.2, 1) infinite;
}
@keyframes pulso-ping {
    0%   { transform: scale(1);   opacity: 0.35; }
    70%, 100% { transform: scale(2.4); opacity: 0; }
}
.pulso-date { font-size: 11px; color: var(--text-muted); opacity: 0.8; }

.pulso-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.pulso-grid + .pulso-grid { margin-top: 10px; }

.pulso-card {
    position: relative; text-align: left; cursor: pointer; font-family: inherit;
    background: var(--surface); border: 1px solid var(--border); border-radius: 16px;
    padding: 14px 15px; display: flex; flex-direction: column; gap: 7px;
    box-shadow: var(--shadow-sm); overflow: hidden;
    transition: transform 0.16s ease, box-shadow 0.16s ease, border-color 0.16s ease;
}
.pulso-card::before {
    content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
    background: var(--accent, var(--primary)); opacity: 0; transition: opacity 0.16s;
}
.pulso-card:hover {
    transform: translateY(-3px); box-shadow: var(--shadow-md);
    border-color: rgba(var(--primary-rgb), 0.35);
}
.pulso-card:hover::before { opacity: 1; }
.pulso-card:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.pulso-card[data-accent="success"] { --accent: var(--success); }
.pulso-card[data-accent="star"]    { --accent: var(--star); }
.pulso-card[data-accent="warning"] { --accent: var(--warning); }

.pc-label {
    font-size: 10px; font-weight: 700; letter-spacing: 0.07em;
    text-transform: uppercase; color: var(--text-muted);
}
.pc-value {
    font-family: var(--font-display); font-size: 25px; font-weight: 600;
    letter-spacing: -0.5px; line-height: 1; color: var(--text);
    font-variant-numeric: tabular-nums;
}
.pc-value.small { font-size: 18px; line-height: 1.15; }
.pc-value .un { font-size: 14px; font-weight: 500; color: var(--text-muted); margin-left: 2px; }
.pc-sub { font-size: 13px; font-weight: 700; color: var(--text); margin-top: -1px; }
.pc-foot {
    display: flex; align-items: center; gap: 6px;
    font-size: 11px; color: var(--text-muted); min-height: 16px;
}

.pc-chip {
    display: inline-flex; align-items: center; gap: 3px;
    font-weight: 700; padding: 2px 7px; border-radius: 999px; font-size: 10px;
}
.pc-chip.up   { color: var(--success-text); background: var(--success-bg); }
.pc-chip.down { color: var(--danger-text);  background: var(--danger-bg); }
.pc-chip.warn { color: var(--warning-text); background: var(--warning-bg); }

.pc-bar {
    height: 7px; border-radius: 999px; background: var(--border);
    position: relative; overflow: hidden;
}
.pc-bar > i {
    position: absolute; left: 0; top: 0; bottom: 0; border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), var(--primary-dark)); display: block;
}
.pc-bar > .ideal {
    position: absolute; top: -2px; bottom: -2px; width: 2px;
    background: var(--text); opacity: 0.5; border-radius: 2px;
}

/* Skeleton enquanto carrega */
.pulso-card.skeleton { cursor: default; pointer-events: none; min-height: 86px; }
.pulso-card.skeleton::after {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(90deg, transparent 25%, rgba(var(--primary-rgb), 0.06) 50%, transparent 75%);
    background-size: 200% 100%; animation: sk-shimmer 1.4s infinite;
}

@media (max-width: 640px) {
    .pulso-grid { grid-template-columns: 1fr; gap: 9px; }
    .pulso-card {
        flex-direction: row; align-items: center;
        justify-content: space-between; flex-wrap: wrap; gap: 4px 10px;
    }
    .pulso-card .pc-bar { flex-basis: 100%; }
}