/* ================================================
   DESIGN TOKENS — AMBIENTAL PRO
   Baseado no Manual de Marca FEV 2026
   ================================================ */
:root {
    /* Cores Oficiais */
    --bg-main:          #010404;
    --bg-surface:       #0A0E0E;
    --bg-surface-light: #141A1A;
    --text-primary:     #E6E8E6;
    --text-secondary:   #9AA19A;
    --text-muted:       #647464;
    --accent-green:     #6FB03A;
    --accent-blue:      #31A8A8;
    
    /* Utilitários gerados nativamente com color-mix() */
    --bg-glass:         rgba(255, 255, 255, 0.15); /* Fundo com 15% de vidro */
    --border-color:     color-mix(in srgb, var(--text-primary) 20%, transparent); /* Borda mais visível */
    --border-hover:     color-mix(in srgb, var(--text-primary) 35%, transparent);
    --accent-glow:      color-mix(in srgb, var(--accent-green) 20%, transparent);

    /* Grid Theme */
    --grid-color:       rgba(16, 185, 129, 0.12); /* Verde Neon 12% - Equilíbrio entre destaque e suavidade */

    /* Formas — O Símbolo do "A": Mistura de reto e curvo */
    --radius-mixed:     2.5rem 0 2.5rem 0;
    --radius-mixed-rev: 0 2.5rem 0 2.5rem;
    
    --radius-sm:        0.375rem;
    --radius-md:        0.625rem;
    --radius-lg:        1rem;
    --radius-xl:        1.25rem;
    --radius-full:      9999px;

    /* Sombras (tema escuro) */
    --shadow-sm:        0 1px 3px rgba(0, 0, 0, 0.35);
    --shadow-md:        0 4px 16px rgba(0, 0, 0, 0.45);
    --shadow-lg:        0 12px 40px rgba(0, 0, 0, 0.55);

    /* Animações Modernas — Easing Físico (Spring) */
    --transition-fast:  0.15s ease;
    --transition-base:  0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --spring-easing:    linear(0, 0.576 4%, 0.79 8%, 0.964 12%, 1.102 17%, 1.005 36%, 1);
    --transition-spring: 0.5s var(--spring-easing);
}

[data-theme="light"] {
    /*
      "Papel cartográfico": fundo sálvia acinzentado (nunca branco puro),
      cartões brancos-creme que ganham relevo por sombra suave, tinta
      verde-escura no lugar do preto absoluto. O branco fica reservado
      às superfícies — é o contraste entre papel e cartão que dá calor.
    */
    --bg-main:          #EDF1EA;
    --bg-surface:       #FCFDFB;
    --bg-surface-light: #E3EADE;
    --text-primary:     #1E2B20;
    --text-secondary:   #4C5B4E;
    --text-muted:       #7E8D80;
    --accent-green:     #47791F;
    --accent-blue:      #1F6E6E;

    --bg-glass:         #FCFDFB; /* Fundo sólido e limpo para destacar no grid */
    --border-color:     color-mix(in srgb, #3A5A40 20%, transparent);
    --border-hover:     color-mix(in srgb, #3A5A40 38%, transparent);
    --accent-glow:      color-mix(in srgb, var(--accent-green) 14%, transparent);

    --grid-color:       rgba(58, 90, 64, 0.10); /* Linhas verdes suaves, tom cartográfico */

    /* Sombras suaves em duas camadas (tinta verde, nunca preto pesado) */
    --shadow-sm:        0 1px 2px rgba(30, 43, 32, 0.06), 0 2px 8px rgba(30, 43, 32, 0.05);
    --shadow-md:        0 2px 6px rgba(30, 43, 32, 0.06), 0 10px 28px rgba(30, 43, 32, 0.10);
    --shadow-lg:        0 4px 12px rgba(30, 43, 32, 0.08), 0 24px 56px rgba(30, 43, 32, 0.14);
}

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

html { 
    scroll-behavior: smooth; 
}

/* Scrollbar Nativa Moderna */
html, .chat-messages {
    scrollbar-color: var(--accent-green) transparent;
    scrollbar-width: thin;
}

body {
    /* Fonte Principal: Montserrat. BioSans nas chamadas. */
    font-family: 'Montserrat', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    height: 100svh;
    overflow: hidden;
    display: flex;
    justify-content: center;
    position: relative;
    z-index: 1;
}

/* Grid Cartográfico Dinâmico (Light/Dark) */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(to right, var(--grid-color) 1px, transparent 1px),
        linear-gradient(to bottom, var(--grid-color) 1px, transparent 1px);
    background-size: 50px 50px;
    background-position: center top;
    pointer-events: none;
    z-index: -2;
}

body.hub-theme {
    overflow-y: auto;
    height: auto;
    min-height: 100svh;
}

/* Tipografia de Destaque */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Bio Sans', 'BioSans', 'Outfit', sans-serif;
    font-weight: 600;
}

/* ================================================
   VIEW TRANSITIONS
   ================================================ */
::view-transition-old(root),
::view-transition-new(root) {
    animation-duration: 0.4s;
    animation-timing-function: var(--spring-easing);
}

::view-transition-old(root) { animation-name: fade-out-scale; }
::view-transition-new(root) { animation-name: fade-in-scale; }

@keyframes fade-out-scale {
    from { opacity: 1; transform: scale(1); }
    to   { opacity: 0; transform: scale(0.96); }
}

@keyframes fade-in-scale {
    from { opacity: 0; transform: scale(1.04); }
    to   { opacity: 1; transform: scale(1); }
}

/* Identificadores de View Transition Únicos */
.header-logo {
    view-transition-name: hub-logo;
}
.hub-headline {
    view-transition-name: hub-headline;
}

/* ================================================
   LAYOUT
   ================================================ */
.app-container {
    width: 100%;
    max-width: 100%;
    padding: 1.5rem 5%;
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

body.hub-theme .app-container {
    height: auto;
    min-height: 100svh;
}

/* ================================================
   HEADER
   ================================================ */
.app-header {
    text-align: center;
    flex-shrink: 0;
    position: relative;
    z-index: 1000;
    
    /* Animação moderna sem keyframes usando starting-style */
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.6s var(--spring-easing), transform 0.6s var(--spring-easing);
}

@starting-style {
    .app-header {
        opacity: 0;
        transform: translateY(-16px);
    }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

body.hub-theme .header-content {
    justify-content: center;
    flex-direction: column;
    gap: 0.75rem;
}

.header-logo {
    max-height: 48px;
    object-fit: contain;
}

.chat-header {
    padding: 1.5rem 3rem;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
@media (max-width: 768px) {
    .chat-header {
        padding: 1rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

.restart-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem 1.1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-spring);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Montserrat', sans-serif;
}

.restart-btn:hover {
    background: var(--bg-surface-light);
    border-color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* ================================================
   HUB — TIPOGRAFIA
   ================================================ */
.hub-headline {
    font-family: 'Bebas Neue', sans-serif;
    font-size: clamp(3rem, 6vw, 4.5rem);
    letter-spacing: 0.03em;
    margin-top: 1rem;
    line-height: 1.15;
    text-wrap: balance; /* Modern CSS */
    padding-top: 0.2em; /* Prevenir corte de acentos no topo */

    background: linear-gradient(135deg, #FFF 10%, var(--accent-green) 70%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .hub-headline {
    background: linear-gradient(135deg, var(--text-primary) 10%, var(--accent-green) 70%, var(--accent-blue) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

[data-theme="light"] .header-logo,
[data-theme="light"] .sidebar-logo {
    filter: invert(1) hue-rotate(180deg) brightness(0.2);
}

.hub-subtitle {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 580px;
    margin: 0 auto;
    line-height: 1.7;
    text-wrap: pretty; /* Modern CSS */
}

/* ================================================
   HUB — GRID DE AGENTES E CARDS
   ================================================ */
.hub-main {
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 0 2rem;
}

.agents-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    padding: 2rem 0 3rem;
}

@media (max-width: 1200px) {
    .agents-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 768px) {
    .agents-grid {
        grid-template-columns: 1fr;
    }
}

.agent-card {
    position: relative;
    background: var(--bg-glass);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(0, 0, 0, 0.6);
    box-shadow: 0 0 25px rgba(16, 185, 129, 0.08), inset 0 0 0 1px rgba(16, 185, 129, 0.1);
    border-radius: var(--radius-mixed);
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    text-decoration: none;
    color: var(--text-primary);
    overflow: hidden;
    cursor: pointer;

    /* Transição moderna baseada em física (Hover) */
    transition: 
        transform var(--transition-spring), 
        box-shadow var(--transition-spring),
        border-color var(--transition-base),
        background var(--transition-base);

    /* Animação suave na entrada (Load) */
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    animation: smooth-enter 0.6s var(--spring-easing) forwards;
}

@keyframes smooth-enter {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.agents-grid .agent-card:nth-child(1) { animation-delay: 0.1s; }
.agents-grid .agent-card:nth-child(2) { animation-delay: 0.2s; }
.agents-grid .agent-card:nth-child(3) { animation-delay: 0.3s; }
.agents-grid .agent-card:nth-child(4) { animation-delay: 0.4s; }
.agents-grid .agent-card:nth-child(5) { animation-delay: 0.5s; }

/* Animação suave para elementos do header (se já não estiverem animados por @starting-style) */
.header-logo { opacity: 0; animation: smooth-enter 0.6s var(--spring-easing) forwards; animation-delay: 0s; }
.hub-headline { opacity: 0; animation: smooth-enter 0.6s var(--spring-easing) forwards; animation-delay: 0.1s; }
.hub-subtitle { opacity: 0; animation: smooth-enter 0.6s var(--spring-easing) forwards; animation-delay: 0.2s; }

/* Borda gradiente da marca revelada no hover */
.agent-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 2px;
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-base);
    pointer-events: none;
}

.agent-card:hover {
    transform: translateY(-8px) scale(1.02);
    background: color-mix(in srgb, var(--bg-surface-light) 50%, var(--bg-glass));
    border-color: var(--border-hover);
    box-shadow: 
        0 20px 45px rgba(0, 0, 0, 0.15),
        0 0 30px -10px var(--accent-glow);
}

.premium-card {
    background: var(--card-bg, var(--bg-glass));
    border: 1px solid color-mix(in srgb, var(--card-color) 30%, transparent);
}

.premium-card:hover {
    border-color: var(--card-color);
    box-shadow: 
        0 20px 45px rgba(0, 0, 0, 0.2),
        0 0 40px -10px color-mix(in srgb, var(--card-color) 40%, transparent);
}

.premium-action {
    color: var(--card-color) !important;
    background: transparent !important;
    padding: 0 !important;
}

.premium-card:hover .premium-action {
    transform: translateX(4px);
}

.agent-card-simple:hover {
    transform: translateY(-4px);
    background: color-mix(in srgb, var(--bg-surface-light) 50%, var(--bg-glass)) !important;
    border-color: var(--border-hover) !important;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1) !important;
}

.agent-card:hover::before { opacity: 1; }

.agent-logo-link {
    width: 100%;
    display: block;
    text-decoration: none;
    margin-bottom: 0.5rem;
}

.agent-icon {
    width: 100%;
    height: 120px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    flex-shrink: 0;
    color: var(--card-color);
    transition: transform var(--transition-spring);
}

.agent-card:hover .agent-icon {
    transform: scale(1.05) translateY(-4px);
}

.agent-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    width: 100%;
    align-items: center;
}

.agent-info-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 0.35rem;
    flex-wrap: wrap;
    width: 100%;
}

.agent-info h3 {
    font-size: 1.2rem;
    line-height: 1.3;
    margin: 0;
}

.agent-expand-btn {
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    transition: color 0.2s, transform 0.2s;
    font-family: inherit;
}
.agent-expand-btn:hover {
    color: var(--card-color);
    transform: translateY(2px);
}
.agent-expand-btn.active .fa-chevron-down {
    transform: rotate(180deg);
}

.agent-expanded-content {
    display: none;
    flex-direction: column;
    gap: 1.25rem;
    margin-top: 1rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
    width: 100%;
    animation: fadeInExpand 0.3s ease forwards;
}

@keyframes fadeInExpand {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.agent-expanded-content.show {
    display: flex;
    flex: 1;
}

.btn-conversar {
    margin: auto auto 0 auto;
    font-weight: 600;
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: transform 0.2s, background 0.2s;
    background: color-mix(in srgb, var(--card-color) 15%, transparent);
    color: var(--card-color) !important;
    padding: 0.6rem 1.5rem;
    border-radius: 2rem;
    border: 1px solid color-mix(in srgb, var(--card-color) 40%, transparent);
    text-decoration: none;
}
.btn-conversar:hover {
    background: color-mix(in srgb, var(--card-color) 25%, transparent);
    transform: translateY(-2px);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    font-family: 'Montserrat', sans-serif;
    white-space: nowrap;
}
.status-badge.available {
    background: color-mix(in srgb, var(--accent-green) 15%, transparent);
    color: var(--accent-green);
    border: 1px solid color-mix(in srgb, var(--accent-green) 30%, transparent);
}
.status-badge.coming-soon {
    background: color-mix(in srgb, var(--text-muted) 15%, transparent);
    color: var(--text-secondary);
    border: 1px solid color-mix(in srgb, var(--text-muted) 30%, transparent);
}

/* ================================================
   MODAL DE CURSOS (Nativo <dialog>)
   ================================================ */
dialog.modal-overlay {
    margin: auto;
    border: none;
    background: transparent;
    max-width: 100vw;
    max-height: 100vh;
    overflow: visible;
}

dialog.modal-overlay::backdrop {
    background: color-mix(in srgb, var(--bg-main) 85%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    opacity: 0;
    transition: opacity var(--transition-base) allow-discrete;
}

dialog.modal-overlay[open]::backdrop {
    opacity: 1;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid rgba(0, 0, 0, 0.8); /* Bordas escurecidas */
    border-radius: var(--radius-mixed);
    width: 90vw;
    max-width: 500px;
    padding: 2.5rem;
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.1), inset 0 0 0 1px rgba(16, 185, 129, 0.1), var(--shadow-lg); /* Glow verde ao redor */
    
    opacity: 0;
    transform: translateY(24px) scale(0.97);
    transition: 
        opacity var(--transition-base) allow-discrete, 
        transform var(--transition-spring) allow-discrete;
}

dialog.modal-overlay[open] .modal-content {
    opacity: 1;
    transform: translateY(0) scale(1);
}

@starting-style {
    dialog.modal-overlay[open]::backdrop {
        opacity: 0;
    }
    dialog.modal-overlay[open] .modal-content {
        opacity: 0;
        transform: translateY(24px) scale(0.97);
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}
.close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color var(--transition-fast), transform var(--transition-spring);
}
.close-modal:hover {
    color: var(--accent-green);
    transform: rotate(90deg) scale(1.1);
}

.course-btn {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 1rem 1.25rem;
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition-spring);
    gap: 1rem;
    margin-bottom: 0.75rem;
}
.course-btn::after {
    content: '→';
    margin-left: auto;
    color: var(--text-muted);
    transition: transform var(--transition-spring);
}
.course-btn:hover {
    background: color-mix(in srgb, #F59E0B 10%, transparent);
    border-color: color-mix(in srgb, #F59E0B 40%, transparent);
    color: #FCD34D;
    transform: translateX(8px);
}
.course-btn:hover::after {
    transform: translateX(4px);
    color: #F59E0B;
}

/* ================================================
   CHAT LAYOUT
   ================================================ */
.main-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    width: 100%;
}

.chat-section {
    flex: 1;
    min-height: 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.chat-container {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}

.chat-messages {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 1.5rem 1rem 1.5rem 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    scroll-behavior: smooth;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

/* ================================================
   MESSAGE BUBBLES COM @starting-style
   ================================================ */
.message-bubble {
    max-width: 90%;
    width: fit-content;
    display: flex;
    gap: 12px;
    
    opacity: 1;
    transform: translateY(0) scale(1);
    transition: 
        opacity 0.4s var(--spring-easing), 
        transform 0.4s var(--spring-easing);
    
    @starting-style {
        opacity: 0;
        transform: translateY(16px) scale(0.97);
    }
}

.agent-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--bg-surface-light);
    border: 1px solid var(--border-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    align-self: flex-start;
    overflow: hidden;
}
.agent-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.agent-message { align-self: flex-start; }
.user-message  { align-self: flex-end; }

.message-content {
    font-size: 1.05rem;
    line-height: 1.6;
    color: var(--text-primary);
    word-break: break-word;
}

.message-content p {
    margin: 0 0 0.5rem 0;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content pre {
    background-color: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem;
    overflow-x: auto;
    margin: 0.75rem 0;
}

.message-content code {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9em;
    background-color: var(--bg-surface-light);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}

.message-content pre code {
    padding: 0;
    background-color: transparent;
}

.agent-message .message-content {
    color: var(--text-primary);
}

.user-message .message-content {
    background: color-mix(in srgb, var(--accent-green) 12%, transparent);
    color: #8ce1a6;
    border: 1px solid color-mix(in srgb, var(--accent-green) 25%, transparent);
    padding: 0.8rem 1.25rem;
    border-radius: 1.25rem;
}

.error-bubble .message-content {
    background: color-mix(in srgb, #EF4444 10%, transparent);
    color: #FCA5A5;
    border: 1px solid color-mix(in srgb, #EF4444 25%, transparent);
    padding: 0.8rem 1.25rem;
    border-radius: 1.25rem;
}

/* ================================================
   MARKDOWN & CHAT ELEMENTS
   ================================================ */
.message-content p { margin-bottom: 0.75rem; }
.message-content p:last-child { margin-bottom: 0; }
.message-content ul, .message-content ol { margin-bottom: 0.75rem; padding-left: 1.5rem; }
.message-content li { margin-bottom: 0.4rem; }
.agent-message .message-content strong { color: var(--accent-green); font-weight: 600; }
.message-content a {
    color: var(--accent-green);
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color var(--transition-fast);
}
.message-content a:hover { color: var(--accent-blue); }

.agent-identity-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, color-mix(in srgb, var(--accent-green) 15%, transparent), color-mix(in srgb, var(--accent-blue) 15%, transparent));
    border: 1px solid color-mix(in srgb, var(--accent-green) 30%, transparent);
    color: var(--accent-green);
    padding: 0.4rem 1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* ================================================
   INPUT & FORMS
   ================================================ */
.dynamic-input-wrapper {
    padding: 1rem 1.5rem;
    flex-shrink: 0;
    border-top: 1px solid var(--border-color);
    background: color-mix(in srgb, var(--bg-main) 40%, transparent);
}

.interactive-options {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
}

.option-btn {
    padding: 0.75rem 1.75rem;
    background: var(--bg-surface-light);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
    border-radius: var(--radius-mixed);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-spring);
    font-family: inherit;
}
.option-btn:hover {
    background: color-mix(in srgb, var(--accent-green) 15%, transparent);
    box-shadow: 0 4px 16px var(--accent-glow);
   ot-allowed;
    transform: none;
    box-shadow: none;
}

/* ================================================
   TYPING & SPINNER
   ================================================ */
.typing-indicator {
    display: flex;
    gap: 6px;
    align-items: center;
    height: 40px;
    padding: 0 1.25rem;
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: 1.25rem;
}
.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--accent-green);
    border-radius: 50%;
    animation: typing 1.4s infinite both;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing {
    0%, 80%, 100% { transform: scale(0.5); opacity: 0.3; }
    40%           { transform: scale(1.2); opacity: 1;   }
}

.btn-spinner {
    display: none;
    width: 18px;
    height: 18px;
    border: 2px solid color-mix(in srgb, var(--bg-main) 30%, transparent);
    border-top-color: var(--bg-main);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}
#sendBtn.loading .fa-paper-plane { display: none; }
#sendBtn.loading .btn-spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ================================================
   DROPDOWN & DOCS BUTTON
   ================================================ */
.dropdown {
    position: relative;
    display: inline-block;
}

.btn-download {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem 1.1rem;
    border-radius: 2rem;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-spring);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Montserrat', sans-serif;
}

.btn-download:hover {
    background: var(--bg-surface-light);
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px color-mix(in srgb, var(--accent-blue) 20%, transparent);
}

.primary-btn {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-blue));
    color: var(--bg-main);
    border: none;
    padding: 0.85rem 1.5rem;
    border-radius: var(--radius-md);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all var(--transition-spring);
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

/* ================================================
   COMPONENTES DE UI AVANÇADOS (Toggle & Float Btn)
   ================================================ */

/* Input Wrapper Flexível e Dinâmico */
.dynamic-input-wrapper {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    width: 100%;
    margin-top: 1rem;
    transition: opacity 0.3s ease;
}

.file-upload-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0.5rem;
    transition: color 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-upload-btn:hover {
    color: var(--accent-primary);
}

/* Toggle Switch de Tema (Pílula) */
.theme-switch-wrapper {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    z-index: 100;
}
.theme-label-text {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: 'Montserrat', sans-serif;
}
.theme-switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
}
.theme-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.theme-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    transition: .4s var(--spring-easing);
    border-radius: 34px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px;
}
.theme-slider::before {
    position: absolute;
    content: "";
    height: 22px;
    width: 22px;
    left: 3px;
    bottom: 3px;
    background-color: var(--text-primary);
    transition: .4s var(--spring-easing);
    border-radius: 50%;
    z-index: 2;
}
input:checked + .theme-slider {
    background-color: color-mix(in srgb, var(--accent-green) 20%, transparent);
    border-color: var(--accent-green);
}
input:checked + .theme-slider::before {
    transform: translateX(30px);
    background-color: var(--accent-green);
}
.theme-slider i {
    font-size: 12px;
    z-index: 1;
}
.theme-slider .fa-moon { color: var(--text-muted); }
.theme-slider .fa-sun { color: #F59E0B; }

/* Botão Flutuante do Admin */
.admin-floating-btn {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    width: 44px;
    height: 44px;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1.25rem;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-spring);
    z-index: 999;
    text-decoration: none;
}
.admin-floating-btn:hover {
    background: var(--bg-surface-light);
    color: var(--accent-green);
    border-color: var(--accent-green);
    transform: translateY(-4px) scale(1.05);
    box-shadow: 0 12px 24px var(--accent-glow);
}

.dropdown-content {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    background: var(--bg-surface-light);
    min-width: 260px;
    box-shadow: var(--shadow-lg);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    z-index: 100;
    overflow: hidden;
    
    /* Native transitions */
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s ease, transform 0.25s ease;
    display: flex;
    flex-direction: column;
}

.dropdown-content::before {
    content: '';
    position: absolute;
    top: -24px;
    left: 0;
    width: 100%;
    height: 24px;
    background: transparent;
}

.dropdown-content a {
    color: var(--text-primary);
    padding: 0.8rem 1.25rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.dropdown-content a:hover {
    background: color-mix(in srgb, var(--accent-blue) 15%, transparent);
    color: var(--accent-blue);
}

.dropdown-content.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

/* ================================================
   SUGESTÕES DE PERGUNTAS (CHIPS)
   ================================================ */
.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(12px);
    transition: all var(--transition-spring);
}

.chat-suggestions.visible {
    padding: 0.5rem 1.5rem;
    max-height: 200px;
    opacity: 1;
    visibility: visible;
    pointer-events: all;
    transform: translateY(0);
}

.suggestion-chip {
    background: var(--bg-surface-light);
    border: 1px solid color-mix(in srgb, var(--accent-green) 40%, transparent);
    color: var(--text-primary);
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-spring);
    text-align: left;
    line-height: 1.4;
    font-family: inherit;
    font-weight: 500;
}

.suggestion-chip:hover {
    background: color-mix(in srgb, var(--accent-green) 15%, transparent);
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--accent-glow);
}

/* ================================================
   RESPONSIVE
   ================================================ */
@media (max-width: 640px) {
    .app-container { padding: 1rem; gap: 1rem; }
    .hub-headline { font-size: clamp(2.5rem, 10vw, 3rem); }
    .agents-grid { grid-template-columns: 1fr; gap: 1.25rem; padding: 1rem 0; }
    .agent-card { padding: 1.5rem; }
    .chat-messages { padding: 1rem; }
    .dynamic-input-wrapper { padding: 1rem; }
}

/* ================================================
   ADAPTIVE LOGO (LIGHT MODE SUPPORT)
   ================================================ */
[data-theme="light"] .adaptive-logo {
    filter: invert(1) hue-rotate(180deg) brightness(1.1);
}

/* ================================================
   SIDEBAR GLOBAL (AGENTES)
   ================================================ */
.layout-container {
    display: flex;
    height: 100vh;
    width: 100%;
}

.sidebar {
    width: 280px;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(24px);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1.5rem;
    display: flex;
    flex-direction: column;
}

/* No tema claro a sidebar vira um cartão sólido sobre o papel sálvia */
[data-theme="light"] .sidebar {
    background: var(--bg-surface);
    box-shadow: var(--shadow-sm);
}

.sidebar-nav-title {
    font-family: 'Bebas Neue', sans-serif;
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    letter-spacing: 1px;
}

.sidebar-nav-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 500;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.sidebar-nav-item:hover {
    background: var(--bg-surface-light);
    color: var(--text-primary);
}

.sidebar-nav-item.active {
    background: color-mix(in srgb, var(--accent-green) 15%, transparent);
    color: var(--accent-green);
    border-color: color-mix(in srgb, var(--accent-green) 30%, transparent);
}

.sidebar-nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}


.secondary-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-surface-light);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.secondary-btn:hover {
    background: color-mix(in srgb, var(--accent-green) 10%, var(--bg-surface-light));
    border-color: var(--accent-green);
    color: var(--accent-green);
    transform: translateY(-2px);
}


/* ================================================
   GEMINI-LIKE CHAT EMPTY STATE
   ================================================ */
.chat-section {
    transition: background 0.5s ease;
}

body:not(.chat-active) .chat-section {
    background: radial-gradient(circle at center, color-mix(in srgb, var(--accent-green) 8%, transparent) 0%, transparent 60%), var(--bg-main);
    border: none;
}

.chat-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-top: auto;
    text-align: center;
    animation: fadeInUp 0.8s var(--spring-easing) forwards;
    padding: 0 1rem;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}

.chat-greeting {
    font-size: 2.2rem;
    font-weight: 500;
    font-family: 'Outfit', sans-serif;
    background: linear-gradient(135deg, var(--text-primary), color-mix(in srgb, var(--accent-green) 60%, var(--text-primary)));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.gemini-input-wrapper {
    width: 100%;
    max-width: 750px;
    margin: 0 auto;
    padding: 0 1rem 2rem 1rem;
    position: relative;
    transition: all 0.5s cubic-bezier(0.2, 0.8, 0.2, 1);
}

body:not(.chat-active) .gemini-input-wrapper {
    margin-bottom: auto;
}

.gemini-input-pill {
    display: flex;
    align-items: center;
    background: var(--bg-surface-light);
    border: 1px solid var(--border-color);
    border-radius: 2rem;
    padding: 0.5rem 1rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.gemini-input-pill:focus-within {
    border-color: color-mix(in srgb, var(--accent-green) 50%, transparent);
    background: var(--bg-surface);
    box-shadow: 0 8px 32px color-mix(in srgb, var(--accent-green) 15%, transparent);
}

.gemini-input-field {
    flex: 1;
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    font-size: 1.05rem;
    color: var(--text-primary);
    outline: none;
    resize: none;
    overflow-y: hidden;
    font-family: inherit;
    line-height: 1.5;
}

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

.gemini-icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.gemini-icon-btn:hover {
    background: color-mix(in srgb, var(--text-secondary) 10%, transparent);
    color: var(--text-primary);
}

.gemini-send-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: not-allowed;
    transition: all 0.2s;
}

.gemini-send-btn.active {
    color: var(--accent-green);
    cursor: pointer;
}

.gemini-send-btn.active:hover {
    background: color-mix(in srgb, var(--accent-green) 10%, transparent);
    transform: scale(1.1);
}

.chat-suggestions-gemini {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.suggestion-chip-gemini {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.75rem 1.25rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
}

.suggestion-chip-gemini:hover {
    background: var(--bg-surface-light);
    border-color: var(--accent-green);
    color: var(--text-primary);
}

body:not(.chat-active) .chat-messages {
    display: none;
}
body.chat-active .chat-empty-state {
    display: none;
}

/* ================================================
   FEEDBACK (👍/👎) NAS RESPOSTAS DOS AGENTES
   ================================================ */
.feedback-row {
    display: flex;
    gap: 0.35rem;
    margin: 0.25rem 0 1rem 3.25rem; /* alinhado ao conteúdo, após o avatar */
    align-items: center;
}

.feedback-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s;
}

.feedback-btn:hover:not(:disabled) {
    border-color: var(--agent-color, var(--accent-green));
    color: var(--agent-color, var(--accent-green));
    background: color-mix(in srgb, var(--agent-color, var(--accent-green)) 10%, transparent);
}

.feedback-btn:disabled {
    cursor: default;
    opacity: 0.45;
}

.feedback-btn.selected {
    opacity: 1;
    border-color: var(--agent-color, var(--accent-green));
    color: var(--agent-color, var(--accent-green));
    background: color-mix(in srgb, var(--agent-color, var(--accent-green)) 15%, transparent);
}

/* ================================================
   MARKDOWN & TABELAS DO CHAT
   ================================================ */

.message-content p {
    margin-bottom: 0.85rem;
    line-height: 1.6;
}

.message-content p:last-child {
    margin-bottom: 0;
}

.message-content ul,
.message-content ol {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    line-height: 1.6;
}

.message-content li {
    margin-bottom: 0.5rem;
}

.message-content li:last-child {
    margin-bottom: 0;
}

/* Wrapper para scroll horizontal em tabelas */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    margin-bottom: 1.5rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.message-content table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.message-content th,
.message-content td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    text-align: left;
}

.message-content thead th {
    background-color: color-mix(in srgb, var(--bg-surface) 60%, transparent);
    font-weight: 600;
    white-space: nowrap;
}

.message-content tr:nth-child(even) {
    background-color: color-mix(in srgb, var(--bg-body) 30%, transparent);
}

.message-content pre {
    margin-bottom: 1rem;
}