body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    margin: 0;
    padding: 0;
    /* Fundo ultra-escuro correspondente ao painel do Dashboard */
    background-color: #f8fafc;; 
    color: #334155;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
}

.login-container {
    /* Cor ligeiramente mais clara que o fundo, idêntica ao card "Total de Leads" */
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    /* Borda subtil azulada/escura */
    border: 1px solid #e2e8f0; 
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 420px;
}

.title {
    text-align: center;
    color: #6366f1; /* Tom de azul/roxo do gradiente do logo do CRM */
    font-family: 'Inter', sans-serif;
    font-weight: 700;
    font-size: 28px;
    letter-spacing: -0.02em;
    margin-top: 0;
    margin-bottom: 28px;
}

.input-box {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.input-box label {
    font-size: 13px;
    font-weight: 500;
    color: #9ca3af;
}

.input-box input {
    /* Fundo dos inputs contrastando com o card */
    background-color: #ffffff; 
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    padding: 12px 14px;
    color: #0f172a;
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    transition: all 0.2s ease-in-out;
}

/* Efeito de Focus idêntico ao do item ativo "Dashboard Operações" */
.input-box input:focus {
    outline: none;
    border-color: #4f46e5;
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.15);
}

.login-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 28px;
    font-size: 13px;
}

.login-actions a {
    color: #818cf8; /* Tom suave de link que combina com o subtítulo do painel */
    text-decoration: none;
    transition: color 0.2s;
}

.login-actions a:hover {
    color: #6366f1;
    text-decoration: underline;
}

button[type="submit"] {
    width: 100%;
    /* Roxo vibrante do botão principal implícito na marca */
    background-color: #4f46e5; 
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
    color: #ffffff;
    border: none;
    padding: 14px;
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    transition: all 0.2s ease;
}

button[type="submit"]:hover {
    background-color: #4338ca;
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
    transform: translateY(-1px);
}

button[type="submit"]:active {
    transform: translateY(0);
}

/* Transição suave nas cores */
body, .login-container, input, button {
    transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

/* --- CLASSE UTILITÁRIA PARA ESCONDER ELEMENTOS --- */
.hidden {
    display: none !important;
}

/* --- ESTILOS DO BOTÃO DE TEMA --- */
.theme-toggle-btn {
    position: fixed; /* Usa fixed para o botão ficar sempre visível no canto do ecrã */
    top: 20px;
    right: 20px;
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 50%; /* Faz um botão redondo */
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #475569;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    z-index: 9999; /* Garante que fica por cima de tudo */
}

/* Tamanho fixo para os ícones SVG */
.theme-icon {
    width: 22px;
    height: 22px;
}

/* --- AJUSTES DO MODO ESCURO --- */
html.dark body {
    background-color: #070a13; 
    color: #f1f5f9;
}

html.dark .login-container {
    background-color: #0f172a;
    border: 1px solid #1e293b;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5);
}

html.dark .title {
    color: #f8fafc;
}

html.dark .input-box label {
    color: #94a3b8;
}

html.dark .input-box input {
    background-color: #1e293b;
    border-color: #334155;
    color: #f1f5f9;
}

html.dark .input-box input:focus {
    border-color: #818cf8;
}

/* Estilo do botão no modo escuro */
html.dark .theme-toggle-btn {
    background-color: #1e293b;
    border-color: #334155;
    color: #cbd5e1;
}

html.dark .hidden {
    display: none;
}