/* PALETA DE CORES OBRIGATÓRIA */
:root {
    /* Modo Escuro Padrão (Paleta Alternativa 4) */
    --logo-primaria: #9C27B0;
    --cor-secundaria: #E91E63;
    --cor-destaque: #F8BBD0;
    --bg-principal: #121212;
    --texto-principal: #FFFFFF;
    --texto-secundario: #BDBDBD;
    --acao-cta: #6A1B9A;
    
    /* Configurações visuais adicionais modernas */
    --bg-card: rgba(30, 30, 30, 0.65);
    --borda-card: rgba(156, 39, 176, 0.25);
    --neon-glow: 0 0 15px rgba(156, 39, 176, 0.4);
    --sombra: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    --tabela-linha: rgba(233, 30, 99, 0.04);
    --input-bg: rgba(20, 20, 20, 0.8);
}

[data-theme="light"] {
    /* Modo Claro Chaveado (Paleta Alternativa 3) */
    --logo-primaria: #7B1FA2;
    --cor-secundaria: #CE93D8;
    --cor-destaque: #FFC107;
    --bg-principal: #F9F9FB;
    --texto-principal: #2E2E2E;
    --texto-secundario: #6B6B6B;
    --acao-cta: #5A2A82;
    
    /* Adaptação das superfícies translúcidas */
    --bg-card: rgba(255, 255, 255, 0.85);
    --borda-card: rgba(123, 31, 162, 0.15);
    --neon-glow: 0 4px 10px rgba(123, 31, 162, 0.1);
    --sombra: 0 8px 24px 0 rgba(90, 42, 130, 0.06);
    --tabela-linha: rgba(123, 31, 162, 0.02);
    --input-bg: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                color 0.3s ease, 
                border-color 0.3s ease, 
                box-shadow 0.3s ease;
}

body {
    background: var(--bg-principal);
    color: var(--texto-principal);
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar Ultra-Moderna */
#sidebar {
    width: 280px;
    background: var(--bg-card);
    border-right: 1px solid var(--borda-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    padding: 30px 20px;
    z-index: 10;
    overflow-y: auto;
}

#sidebar::-webkit-scrollbar {
    width: 4px;
}
#sidebar::-webkit-scrollbar-thumb {
    background: var(--borda-card);
    border-radius: 4px;
}

.logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--logo-primaria);
    text-align: center;
    margin-bottom: 40px;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: var(--neon-glow);
    flex-shrink: 0;
}

.menu-item {
    padding: 12px 16px;
    margin-bottom: 6px;
    border-radius: 12px;
    cursor: pointer;
    color: var(--texto-principal);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 14px;
    border: 1px solid transparent;
    font-size: 14.5px;
    flex-shrink: 0;
}

/* Ícones SVG dentro do menu */
.menu-item svg {
    width: 20px;
    height: 20px;
    fill: var(--texto-secundario);
    transition: fill 0.2s ease;
}

.menu-item:hover svg, .menu-item.active svg {
    fill: var(--cor-secundaria);
}

.menu-item:hover, .menu-item.active {
    background: rgba(156, 39, 176, 0.12);
    border-color: var(--borda-card);
    color: var(--cor-secundaria);
}

.menu-item.active {
    box-shadow: var(--neon-glow);
    background: rgba(156, 39, 176, 0.18);
    font-weight: 600;
}

/* Área de Visualização Externa */
#conteudo-principal {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 40px;
}

#topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--borda-card);
}

#titulo-pagina {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 25px;
}

#user-badge {
    font-size: 13.5px;
    background: rgba(156, 39, 176, 0.08);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--borda-card);
    color: var(--texto-secundario);
}

.btn-tema {
    background: var(--bg-card);
    border: 1px solid var(--borda-card);
    color: var(--texto-principal);
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 13.5px;
    box-shadow: var(--sombra);
}

.btn-tema:hover {
    border-color: var(--cor-secundaria);
    box-shadow: var(--neon-glow);
}

/* Dashboard Premium Grid */
.grid-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--borda-card);
    border-radius: 18px;
    padding: 30px;
    box-shadow: var(--sombra);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    margin-bottom: 30px;
}

.card h3 {
    font-size: 12px;
    color: var(--texto-secundario);
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    font-weight: 700;
}

.card .valor {
    font-size: 36px;
    font-weight: 800;
    color: var(--texto-principal);
}

/* Customização Avançada de Tabelas */
table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 20px;
}

th {
    color: var(--cor-secundaria);
    text-align: left;
    padding: 16px;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 2px solid var(--borda-card);
}

td {
    padding: 16px;
    border-bottom: 1px solid var(--borda-card);
    font-size: 14.5px;
    color: var(--texto-principal);
}

tr:last-child td {
    border-bottom: none;
}

tr:nth-child(even) {
    background: var(--tabela-linha);
}

/* Formulários Refinados */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 13.5px;
    font-weight: 600;
    color: var(--texto-secundario);
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    background: var(--input-bg);
    border: 1px solid var(--borda-card);
    border-radius: 10px;
    color: var(--texto-principal);
    outline: none;
    font-size: 14.5px;
}

.form-control:focus {
    border-color: var(--cor-secundaria);
    box-shadow: var(--neon-glow);
}

.btn-submit {
    background: var(--acao-cta);
    color: #ffffff;
    border: none;
    padding: 14px 24px;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 700;
    font-size: 15px;
    width: 100%;
    margin-top: 10px;
    box-shadow: var(--sombra);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-submit:hover {
    box-shadow: var(--neon-glow);
    filter: brightness(1.15);
}