:root {
    --bg-color: #09090B;         /* Preto profundo */
    --card-bg: #121215;          /* Cinza quase preto */
    --card-hover: #18181B;       /* Hover sutil */
    --border-color: #27272A;     /* Bordas discretas */
    --text-primary: #FAFAFA;     /* Branco texto */
    --text-secondary: #A1A1AA;   /* Cinza texto */
    --accent: #FFFFFF;           /* Destaque branco puro */
    --danger: #EF4444;           /* Vermelho suave para excluir */

    --radius-lg: 24px;
    --radius-md: 16px;
    --radius-sm: 8px;

    --transition: 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html, body { height: 100%; overscroll-behavior: none; }

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

/* Utilitários e Efeitos */
.desktop-only { display: none; }
@media (min-width: 768px) {
    .desktop-only { display: flex; }
    .mobile-only { display: none !important; }
}

.liquid-glass {
    background: rgba(18, 18, 21, 0.6);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.04);
}

/* Layout Principal */
.app-layout {
    display: flex;
    min-height: 100vh;
    padding-bottom: 90px; /* Espaço para nav mobile */
}

@media (min-width: 768px) {
    .app-layout { padding-bottom: 0; }
}

/* Sidebar (Desktop) */
.sidebar {
    width: 260px;
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    display: none;
    flex-direction: column;
    padding: 32px 24px;
    border-right: 1px solid var(--border-color);
    z-index: 40;
}

.sidebar-brand {
    display: flex; align-items: center; gap: 12px;
    font-size: 1.2rem; font-weight: 600; letter-spacing: -0.02em;
    margin-bottom: 48px; color: var(--text-primary);
}
.brand-icon { font-size: 1.5rem; }

.sidebar-nav { display: flex; flex-direction: column; gap: 8px; flex: 1; }

.sidebar .nav-btn {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px; border-radius: var(--radius-sm);
    background: transparent; border: none;
    color: var(--text-secondary); font-size: 0.95rem; font-weight: 500;
    cursor: pointer; transition: var(--transition);
}
.sidebar .nav-btn:hover { background: rgba(255,255,255,0.03); color: var(--text-primary); }
.sidebar .nav-btn.active { background: rgba(255,255,255,0.08); color: var(--text-primary); }

/* Conteúdo Principal */
.main-content {
    flex: 1;
    padding: 24px 20px;
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
}

@media (min-width: 768px) {
    .main-content {
        margin-left: 260px; /* Compensa a sidebar */
        max-width: 1000px;
        padding: 48px 64px;
    }
}

/* Cabeçalho e Resumo */
.dashboard-header { margin-bottom: 32px; }
.greeting { font-size: 1.5rem; font-weight: 600; color: var(--text-secondary); margin-bottom: 24px; letter-spacing: -0.02em; }

.summary-cards { display: flex; flex-direction: column; gap: 16px; }
.summary-card { padding: 8px 0; }
.summary-card.highlight .card-value { font-size: 3rem; font-weight: 700; letter-spacing: -0.04em; color: var(--text-primary); line-height: 1; }
.card-title { font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 8px; text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.card-value { font-size: 1.5rem; font-weight: 600; color: var(--text-primary); }
.card-subtitle { font-size: 0.9rem; color: var(--text-secondary); font-weight: 400; }

@media (min-width: 768px) {
    .greeting { font-size: 1.8rem; margin-bottom: 32px; }
    .summary-cards { flex-direction: row; gap: 24px; }
    .summary-card {
        flex: 1; background: var(--card-bg); padding: 24px;
        border-radius: var(--radius-lg); border: 1px solid var(--border-color);
    }
    .summary-card.highlight .card-value { font-size: 2.5rem; }
}

/* Abas */
.tab { display: none; opacity: 0; animation: fadeIn 300ms ease forwards; }
.tab.active { display: block; }
@keyframes fadeIn { to { opacity: 1; } }

.section-container { margin-top: 16px; }
.section-header { margin-bottom: 24px; }
.section-header h2 { font-size: 1.1rem; font-weight: 600; letter-spacing: -0.01em; color: var(--text-primary); }

@media (min-width: 768px) {
    #tab-chart .section-container { padding: 32px; border-radius: var(--radius-lg); border: 1px solid var(--border-color); }
}

/* Lista de Gastos & Cards (Mobile) / Tabela (Desktop) */
.lista-gastos { display: flex; flex-direction: column; gap: 12px; }

.gasto-item {
    display: grid;
    grid-template-columns: 44px 1fr auto;
    grid-template-areas:
        "emoji desc valor"
        "emoji meta acoes";
    gap: 4px 16px;
    padding: 16px;
    background: var(--card-bg);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.02);
    transition: var(--transition);
}

.gasto-emoji { grid-area: emoji; width: 44px; height: 44px; background: rgba(255,255,255,0.05); border-radius: 12px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.gasto-descricao { grid-area: desc; font-weight: 500; font-size: 1rem; color: var(--text-primary); align-self: end; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.gasto-meta-mobile { grid-area: meta; font-size: 0.85rem; color: var(--text-secondary); align-self: start; }
.gasto-valor { grid-area: valor; font-weight: 600; text-align: right; color: var(--text-primary); align-self: end; }
.gasto-acoes { grid-area: acoes; display: flex; justify-content: flex-end; gap: 8px; align-self: start; }

@media (min-width: 768px) {
    .lista-gastos { gap: 0; }
    .table-header {
        display: grid;
        grid-template-columns: 50px 2fr 1fr 1fr 1fr 80px;
        padding: 0 16px 12px;
        color: var(--text-secondary);
        font-size: 0.85rem; font-weight: 500;
        border-bottom: 1px solid var(--border-color);
        margin-bottom: 8px;
    }
    .gasto-item {
        grid-template-columns: 50px 2fr 1fr 1fr 1fr 80px;
        grid-template-areas: "emoji desc cat data valor acoes";
        align-items: center; gap: 0;
        padding: 12px 16px;
        background: transparent; border: none; border-radius: var(--radius-sm);
        border-bottom: 1px solid rgba(255,255,255,0.03);
    }
    .gasto-item:hover { background: var(--card-hover); }
    .gasto-descricao { align-self: center; }
    .gasto-valor { align-self: center; }
    .gasto-acoes { align-self: center; opacity: 0; transition: opacity var(--transition); }
    .gasto-item:hover .gasto-acoes { opacity: 1; }
    .gasto-categoria { grid-area: cat; }
    .gasto-data { grid-area: data; color: var(--text-secondary); font-size: 0.9rem; }

    .badge { background: rgba(255,255,255,0.08); padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: 500; color: var(--text-secondary); }
}

/* Botões de Ação */
.btn-acao {
    background: transparent; border: none; color: var(--text-secondary);
    padding: 6px; border-radius: 8px; cursor: pointer; transition: var(--transition);
    display: flex; align-items: center; justify-content: center;
}
.btn-acao:hover { background: rgba(255,255,255,0.1); color: var(--text-primary); }
.btn-acao.danger:hover { background: rgba(239, 68, 68, 0.15); color: var(--danger); }
.btn-acao:active { transform: scale(0.92); }

/* Edição Inline */
.edit-wrapper { display: flex; flex-direction: column; gap: 12px; grid-column: 1 / -1; width: 100%; }
.edit-wrapper input, .edit-wrapper select {
    background: var(--bg-color); border: 1px solid var(--border-color);
    color: var(--text-primary); padding: 12px; border-radius: var(--radius-sm);
    font-family: inherit; font-size: 0.95rem; transition: var(--transition);
}
.edit-wrapper input:focus, .edit-wrapper select:focus { outline: none; border-color: var(--accent); }

@media (min-width: 768px) {
    .edit-wrapper { flex-direction: row; align-items: center; }
    .edit-wrapper input, .edit-wrapper select { flex: 1; padding: 10px; }
}

/* Nav Inferior (Mobile) */
.bottom-nav {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    width: calc(100% - 40px); height: 72px; border-radius: 36px;
    display: flex; align-items: center; justify-content: space-evenly;
    z-index: 50; box-shadow: 0 10px 40px rgba(0,0,0,0.5);
}

.bottom-nav .nav-btn {
    background: none; border: none; color: var(--text-secondary);
    padding: 12px; cursor: pointer; transition: var(--transition); border-radius: 50%;
}
.bottom-nav .nav-btn.active { color: var(--text-primary); }
.nav-fab {
    background: var(--accent); color: #000; border: none;
    width: 85px; height: 48px; border-radius: 15px; display: flex; align-items: center; justify-content: center;%;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; transition: var(--transition);
}
.nav-fab:active { transform: scale(0.9); }

/* Modal Bottom Sheet / Desktop Central */
.modal-overlay {
    position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    display: flex; align-items: flex-end; z-index: 100;
    opacity: 0; pointer-events: none; transition: opacity 300ms ease;
}
.modal-overlay.active { opacity: 1; pointer-events: auto; }

.modal-box {
    width: 100%; padding: 24px 24px 48px;
    border-radius: 28px 28px 0 0; background: var(--card-bg) !important;
    transform: translateY(100%); transition: transform 300ms cubic-bezier(0.32, 0.72, 0, 1);
}
.modal-overlay.active .modal-box { transform: translateY(0); }

.modal-handle { width: 40px; height: 4px; background: var(--border-color); border-radius: 2px; margin: 0 auto 24px; }
.modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
.modal-title { font-size: 1.25rem; font-weight: 600; color: var(--text-primary); }
.btn-close { background: none; border: none; color: var(--text-secondary); cursor: pointer; display: flex; transition: var(--transition); }
.btn-close:hover { color: var(--text-primary); }

.field-group { display: flex; flex-direction: column; gap: 8px; margin-bottom: 16px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 24px; }
.field-group label { font-size: 0.8rem; font-weight: 500; color: var(--text-secondary); }
.field-group input, .field-group select {
    background: rgba(255,255,255,0.03); border: 1px solid var(--border-color);
    color: var(--text-primary); padding: 14px 16px; border-radius: var(--radius-sm);
    font-size: 1rem; font-family: inherit; transition: var(--transition);
}
.field-group input:focus, .field-group select:focus { outline: none; border-color: var(--accent); background: rgba(255,255,255,0.05); }

.modal-actions { display: flex; gap: 12px; margin-top: 32px; }
.btn-cancel, .btn-primary { flex: 1; padding: 14px; border-radius: var(--radius-sm); font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: var(--transition); border: none; }
.btn-cancel { background: transparent; color: var(--text-primary); border: 1px solid var(--border-color); }
.btn-primary { background: var(--accent); color: #000; }
.btn-primary:active, .btn-primary:hover { opacity: 0.9; transform: scale(0.98); }

@media (min-width: 768px) {
    .modal-overlay { align-items: center; justify-content: center; }
    .modal-box {
        width: 440px; padding: 32px; border-radius: var(--radius-lg);
        transform: scale(0.95); border: 1px solid var(--border-color);
    }
    .modal-overlay.active .modal-box { transform: scale(1); }
    .modal-actions { justify-content: flex-end; }
    .btn-primary { flex: none; padding: 12px 24px; }
}

/* Gráfico */
.chart-container { position: relative; height: 350px; width: 100%; }
@media (min-width: 768px) { .chart-container { height: 450px; } }
.vazio { text-align: center; color: var(--text-secondary); padding: 48px 0; font-size: 0.95rem; }
.sidebar-actions {
    margin-top: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-fab {
    width: 100%;
}
@media (min-width: 768px) {
    .sidebar {
        display: flex; /* mostra só no desktop */
    }
}