/*------------------------------------*\
  #VARIABLES & RESET
\*------------------------------------*/
:root {
    /* Paleta de Cores */
    --color-primary-light: #e0f7fa;
    --color-primary: #00bcd4;
    --color-primary-dark: #00838f;
    --color-accent: #ffab40;
    --color-background: #f4f8f9;
    --color-surface: #ffffff;
    --color-text-primary: #263238;
    --color-text-secondary: #546e7a;
    --color-text-on-primary: #ffffff;
    --color-border: #cfd8dc;
    --color-error: #e53935;
    --color-error-light: #ffebee;

    /* Tipografia */
    --font-family-base: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --font-size-base: 1rem;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;

    /* Sombras */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);

    /* Transições */
    --transition-speed-fast: 0.15s;
    --transition-speed-normal: 0.3s;
    --transition-timing: cubic-bezier(0.4, 0, 0.2, 1); /* Easing suave */

    /* Layout */
    --header-height: 65px;
    /* *** LARGURA AJUSTADA AQUI *** */
    --sidebar-width: 280px; /* Exemplo: aumentado de 250px */
}

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

html, body {
    height: 100%;
    overflow-x: hidden; /* Previne scroll horizontal */
    overflow-y: hidden;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    background-color: var(--color-background);
    color: var(--color-text-primary);
}

body:not(.ready) .main-layout {
    opacity: 0;
    visibility: hidden;
}
body.ready .main-layout {
    opacity: 1;
    visibility: visible;
    transition: opacity var(--transition-speed-normal) var(--transition-timing);
}

/*------------------------------------*\
  #LOADING OVERLAYS
\*------------------------------------*/
#loading-overlay,
#iframe-loading-overlay {
    position: fixed; inset: 0; background-color: rgba(244, 248, 249, 0.9);
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    z-index: 2000; opacity: 1;
    transition: opacity var(--transition-speed-normal) var(--transition-timing), visibility var(--transition-speed-normal) step-end;
    pointer-events: auto;
}
#iframe-loading-overlay { position: absolute; background-color: rgba(255, 255, 255, 0.85); z-index: 10;}
#loading-overlay.hidden, #iframe-loading-overlay.hidden { opacity: 0; pointer-events: none; visibility: hidden; transition: opacity var(--transition-speed-normal) var(--transition-timing), visibility var(--transition-speed-normal) step-start;}
.spinner { border: 4px solid var(--color-primary-light); border-top: 4px solid var(--color-primary); border-radius: 50%; width: 40px; height: 40px; animation: spin 1s linear infinite; margin-bottom: 15px;}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
#loading-overlay p, #iframe-loading-overlay p { font-weight: 500; color: var(--color-text-secondary); }

/*------------------------------------*\
  #HEADER
\*------------------------------------*/
header[role="banner"] { position: fixed; top: 0; left: 0; right: 0; height: var(--header-height); background-color: var(--color-surface); padding: 0 30px; display: flex; align-items: center; z-index: 1000; box-shadow: var(--shadow-sm); border-bottom: 1px solid var(--color-border);}
header h1 { font-size: var(--font-size-lg); font-weight: 600; color: var(--color-primary-dark); display: flex; align-items: center; margin: 0;}
header h1 i { margin-right: 12px; color: var(--color-primary); }

/*------------------------------------*\
  #MAIN LAYOUT (Sidebar + Content)
\*------------------------------------*/
.main-layout {
    display: flex;
    height: 100vh;
    padding-top: var(--header-height);
    opacity: 0;
    transition: opacity var(--transition-speed-normal) var(--transition-timing);
    position: relative;
    left: 0;
    width: 100%;
    overflow: hidden;
}

.main-layout.visible {
    opacity: 1;
}


/*------------------------------------*\
  #SIDEBAR NAVIGATION
\*------------------------------------*/
#sidebarNav {
    width: var(--sidebar-width); /* Usa a nova largura */
    background-color: var(--color-surface);
    box-shadow: var(--shadow-md);
    z-index: 999;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: absolute;
    top: var(--header-height);
    bottom: 0;
    left: 0;
    transform: translateX(0);
    transition: transform var(--transition-speed-normal) var(--transition-timing),
                opacity var(--transition-speed-normal) var(--transition-timing);
    border-right: 1px solid var(--color-border);
    overflow-y: auto; /* Permite scroll vertical se o conteúdo for maior */
    overflow-x: hidden; /* Esconde conteúdo horizontalmente */
}

#sidebarNav.collapsed {
    transform: translateX(-100%);
    opacity: 0; /* Fade out completo */
    pointer-events: none;
    border-right: none;
}

/* *** AJUSTES NO HEADER DA SIDEBAR *** */
.sidebar-header {
    padding: 20px; /* Restaura padding */
    margin-bottom: 15px; /* Restaura margem */
    opacity: 1;
    flex-shrink: 0; /* Evita que o header encolha */
    /* Transição sincronizada */
    transition: opacity var(--transition-speed-normal) var(--transition-timing);
    white-space: nowrap; /* Garante que o conteúdo não quebre linha */
    overflow: hidden; /* Esconde conteúdo se for maior */
}
#sidebarNav.collapsed .sidebar-header {
    opacity: 0;
    pointer-events: none; /* Impede interação quando invisível */
}
.sidebar-header h2 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-align: center;
    white-space: nowrap; /* Garante que "Navegação" não quebre */
}
/* *** FIM AJUSTES HEADER *** */

.sidebar-menu {
    padding: 0 15px; /* Padding lateral para os botões */
    flex-grow: 1;
    overflow-y: auto; /* Permite scroll nos botões se necessário */
    overflow-x: hidden;
}

#sidebarNav button {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 8px;
    border: none;
    background-color: transparent;
    border-radius: 8px;
    font-family: var(--font-family-base);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-speed-fast) ease-in-out,
                color var(--transition-speed-fast) ease-in-out,
                transform var(--transition-speed-fast) ease-in-out;
    white-space: nowrap;
    overflow: hidden;
    outline: none;
}
#sidebarNav button:hover {
    background-color: var(--color-primary-light);
    color: var(--color-primary-dark);
    transform: translateX(3px);
}
#sidebarNav button.active {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}
#sidebarNav button.active:hover {
   transform: none;
}
#sidebarNav button span.fa-fw {
    width: 20px;
    margin-right: 12px;
    font-size: 1.1em;
    text-align: center;
    transition: transform var(--transition-speed-normal) var(--transition-timing);
}
#sidebarNav button:hover span.fa-fw {
    transform: scale(1.1) translateX(3px);
}
#sidebarNav button span.button-text {
    opacity: 1;
    transition: opacity 0.1s ease-out; /* Fade rápido do texto */
    overflow: hidden; /* Garante que texto longo seja cortado */
    text-overflow: ellipsis; /* Adiciona "..." se cortar */
}
#sidebarNav.collapsed button span.button-text {
    opacity: 0;
}

/* *** AJUSTES NO FOOTER DA SIDEBAR *** */
.sidebar-footer {
    padding: 15px; /* Restaura padding */
    margin-top: auto;
    border-top: 1px solid var(--color-border); /* Restaura borda */
    opacity: 1;
    flex-shrink: 0; /* Evita que o footer encolha */
    /* Transição sincronizada */
    transition: opacity var(--transition-speed-normal) var(--transition-timing);
}
#sidebarNav.collapsed .sidebar-footer {
    opacity: 0;
    pointer-events: none; /* Impede interação quando invisível */
}
/* *** FIM AJUSTES FOOTER *** */


#logoutBtn.logout-button {
    background-color: var(--color-error-light);
    color: var(--color-error);
    font-weight: 600;
}
#logoutBtn.logout-button:hover {
    background-color: var(--color-error);
    color: var(--color-text-on-primary);
    transform: translateX(3px);
}

/*------------------------------------*\
  #SIDEBAR TOGGLE BUTTON
\*------------------------------------*/
#toggleSidebarBtn {
    position: fixed;
    top: calc(var(--header-height) + 15px);
    /* Usa a nova largura da sidebar para calcular a posição */
    left: calc(var(--sidebar-width) - 18px);
    z-index: 1001;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-text-secondary);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: left var(--transition-speed-normal) var(--transition-timing),
                transform var(--transition-speed-normal) var(--transition-timing),
                background-color var(--transition-speed-fast) ease-in-out,
                color var(--transition-speed-fast) ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
}
#toggleSidebarBtn:hover {
    background-color: var(--color-primary);
    color: var(--color-text-on-primary);
    transform: scale(1.1);
}
#toggleSidebarBtn i {
    transition: transform var(--transition-speed-normal) var(--transition-timing);
}

/* Posição do botão quando FECHADA */
body.sidebar-collapsed #toggleSidebarBtn {
    left: 10px;
}
/* Rotação do ícone (opcional) */
body.sidebar-collapsed #toggleSidebarBtn i {
    /* transform: rotate(180deg); */ /* Remova se usar JS para trocar ícone */
}


/*------------------------------------*\
  #MAIN CONTENT (IFRAME AREA)
\*------------------------------------*/
#dashboard-container {
    flex-grow: 1;
    background-color: transparent;
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    padding: 20px;
    /* Usa a nova largura da sidebar para a margem */
    margin-left: var(--sidebar-width);
    transition: margin-left var(--transition-speed-normal) var(--transition-timing);
}
/* Remove margem quando FECHADA */
body.sidebar-collapsed #dashboard-container {
    margin-left: 0;
}

iframe#dashboardFrame {
    width: 100%;
    height: 100%;
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    background-color: var(--color-surface);
}

/*------------------------------------*\
  #RESPONSIVENESS (Basic Example)
\*------------------------------------*/
@media (max-width: 768px) {
    /* A largura da sidebar mobile pode ser diferente da desktop */
    /* Vamos definir uma variável específica ou usar a principal se quiser igual */
     :root {
         --sidebar-width-mobile: 240px; /* Exemplo de largura mobile */
     }

    #sidebarNav {
        position: fixed;
        width: var(--sidebar-width-mobile); /* Usa largura mobile */
        /* Ajusta transform para usar a largura mobile */
        transform: translateX(calc(-1 * var(--sidebar-width-mobile)));
        transition: transform var(--transition-speed-normal) var(--transition-timing);
        z-index: 1100;
        box-shadow: var(--shadow-lg);
         /* O resto (top, bottom, left, display, etc.) mantido */
         top: var(--header-height); bottom: 0; left: 0;
         background-color: var(--color-surface); display: flex; flex-direction: column; flex-shrink: 0;
         border-right: 1px solid var(--color-border); opacity: 1; /* Opacidade inicial para animação */
    }
     #sidebarNav.collapsed {
         transform: translateX(calc(-1 * var(--sidebar-width-mobile)));
         opacity: 0;
         pointer-events: none;
     }
     #sidebarNav:not(.collapsed) {
        transform: translateX(0);
        opacity: 1;
        pointer-events: auto;
      }


    #dashboard-container {
        margin-left: 0; /* Sem margem em mobile */
        transition: none;
    }
     body.sidebar-collapsed #dashboard-container {
        margin-left: 0;
    }


    #toggleSidebarBtn {
        left: 15px;
        z-index: 1101;
        transition: transform var(--transition-speed-normal) var(--transition-timing),
                     background-color var(--transition-speed-fast) ease-in-out,
                     color var(--transition-speed-fast) ease-in-out;
    }
     body.sidebar-collapsed #toggleSidebarBtn {
        left: 15px;
    }


    body:not(.sidebar-collapsed)::after {
       content: ''; position: fixed; top: var(--header-height);
       left: 0; /* Overlay cobre tudo */
       right: 0; bottom: 0; background-color: rgba(0, 0, 0, 0.4);
       z-index: 1099; opacity: 1;
       transition: opacity var(--transition-speed-normal) var(--transition-timing);
       pointer-events: auto;
    }
     body.sidebar-collapsed::after {
         opacity: 0;
         pointer-events: none;
     }

}