:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-dark: #0f172a;
    --bg-card: #1e293b;
    --border-color: #334155;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent-green: #10b981;
    --accent-purple: #8b5cf6;
    --accent-orange: #f97316;
    --danger: #ef4444;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Layout Principal */
.app-container {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* Header para Telas Pequenas (Mobile) */
.mobile-topbar {
    display: none;
    height: 60px;
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0 1rem;
    align-items: center;
    justify-content: space-between;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 90;
}

.btn-toggle-menu {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 0.4rem;
}

.mobile-brand {
    font-size: 1.2rem;
    font-weight: 700;
    color: #60a5fa;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-img {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(96, 165, 250, 0.4);
    box-shadow: 0 0 10px rgba(96, 165, 250, 0.2);
}

.login-logo-img {
    width: 84px;
    height: 84px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(96, 165, 250, 0.5);
    box-shadow: 0 0 25px rgba(96, 165, 250, 0.35);
    transition: transform 0.3s ease;
}

.login-logo-img:hover {
    transform: scale(1.05);
}

.btn-close-sidebar {
    display: none;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.3rem;
    cursor: pointer;
    margin-left: auto;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 99;
}

/* Sidebar Desktop */
.sidebar {
    width: 260px;
    background-color: var(--bg-card);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.sidebar .brand {
    font-size: 1.4rem;
    font-weight: 700;
    color: #60a5fa;
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.sidebar nav a {
    color: var(--text-muted);
    text-decoration: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
}

.sidebar nav a:hover, .sidebar nav a.active {
    background-color: rgba(37, 99, 235, 0.15);
    color: #60a5fa;
}

.sidebar .user-info {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    margin-top: 2rem;
}

.user-badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
}

.badge-admin { background-color: rgba(139, 92, 246, 0.2); color: var(--accent-purple); border: 1px solid var(--accent-purple); }
.badge-normal { background-color: rgba(16, 185, 129, 0.2); color: var(--accent-green); border: 1px solid var(--accent-green); }

.content {
    flex-grow: 1;
    padding: 2rem;
    overflow-y: auto;
    width: 100%;
}

/* Header de Página */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.page-header h1 {
    font-size: 1.8rem;
    font-weight: 600;
}

/* Cards do Dashboard */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.card-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.card-subtext {
    font-size: 0.85rem;
    color: var(--accent-green);
}

/* Tabelas e Caixas de Conteúdo */
.panel {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    text-align: left;
    white-space: nowrap;
}

th, td {
    padding: 0.85rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

th {
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
}

tr:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

/* Formatações de Botões e Inputs */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: background 0.2s;
}

.btn-primary { background-color: var(--primary-color); color: #fff; }
.btn-primary:hover { background-color: var(--primary-hover); }

.btn-danger { background-color: var(--danger); color: #fff; }
.btn-secondary { background-color: var(--border-color); color: var(--text-main); }

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-main);
    font-size: 0.95rem;
    outline: none;
}

.form-control:focus {
    border-color: var(--primary-color);
}

/* Form de Login Específico */
.login-body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 1rem;
    background: radial-gradient(circle at top right, #1e1b4b, var(--bg-dark));
}

.login-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background-color: rgba(30, 41, 59, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.alert-danger { background-color: rgba(239, 68, 68, 0.2); color: #fca5a5; border: 1px solid var(--danger); }
.alert-success { background-color: rgba(16, 185, 129, 0.2); color: #6ee7b7; border: 1px solid var(--accent-green); }

/* Grid responsivo para formulários de 2 colunas */
.form-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.atendimento-tipo-box {
    display: flex;
    gap: 2rem;
    margin-top: 1rem;
}

/* Grid responsivo de produtos da venda */
.product-item-box {
    display: grid;
    grid-template-columns: 140px 1.2fr 1.5fr 90px 110px 40px;
    gap: 0.75rem;
    margin-bottom: 1rem;
    align-items: end;
    background: rgba(15, 23, 42, 0.4);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

/* MEDIA QUERIES RESPONSIVAS PARA SMARTPHONES E TABLETS */
@media (max-width: 1200px) {
    .product-item-box {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }
}

@media (max-width: 992px) {
    .grid-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .atendimento-tipo-box {
        flex-direction: column;
        gap: 1rem;
    }
}

@media (max-width: 768px) {
    body {
        padding-top: 60px;
    }

    .mobile-topbar {
        display: flex;
    }

    .btn-close-sidebar {
        display: block;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        z-index: 100;
        transform: translateX(-100%);
        box-shadow: 10px 0 25px rgba(0, 0, 0, 0.5);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.open {
        display: block;
    }

    .content {
        padding: 1rem 0.75rem;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .page-header > div {
        width: 100%;
        display: flex;
        flex-direction: column;
        gap: 0.5rem;
    }

    .page-header .btn {
        width: 100%;
    }

    .grid-cards {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .form-grid-2 {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .product-item-box {
        grid-template-columns: 1fr;
        padding: 0.85rem;
        gap: 0.6rem;
    }

    .login-card {
        padding: 1.5rem;
    }

    .panel {
        padding: 1rem 0.75rem;
    }
}