:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --line: #e5e7eb;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --success: #16a34a;
    --warning: #d97706;
    --sidebar: #0f172a;
    --font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --base-font-size: 14px;
    --heading-font-size: 28px;
    --card-radius: 18px;
    --button-radius: 12px;
    --card-shadow: 0 10px 30px rgba(15, 23, 42, .05);
}
* { box-sizing: border-box; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font-family);
    font-size: var(--base-font-size);
}
a { color: inherit; text-decoration: none; }
.sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: 260px;
    background: var(--sidebar);
    color: white;
    padding: 24px 18px;
}
.brand { display: flex; gap: 12px; align-items: center; margin-bottom: 30px; }
.brand-mark {
    width: 42px; height: 42px; border-radius: var(--button-radius);
    display: grid; place-items: center; background: var(--primary); font-weight: 800;
}
.brand small { display: block; color: #94a3b8; margin-top: 2px; }
.sidebar nav { display: grid; gap: 7px; }
.sidebar a { color: #cbd5e1; padding: 11px 12px; border-radius: var(--button-radius); }
.sidebar a:hover, .sidebar a.active { color: white; background: rgba(255,255,255,.11); }
.main { margin-left: 260px; padding: 28px; min-height: 100vh; }
.main-login { margin-left: 0; display: grid; place-items: center; }
.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 22px; }
.topbar h1 { margin: 0 0 4px; font-size: var(--heading-font-size); }
.topbar p { margin: 0; color: var(--muted); }
.card {
    background: var(--card); border: 1px solid var(--line); border-radius: var(--card-radius);
    padding: 20px; box-shadow: var(--card-shadow); margin-bottom: 18px;
}
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.stat { padding: 18px; border-radius: var(--card-radius); background: var(--card); border: 1px solid var(--line); }
.stat strong { display: block; font-size: 30px; margin-bottom: 4px; }
.stat span { color: var(--muted); }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn, button {
    display: inline-flex; align-items: center; justify-content: center; gap: 7px;
    border: 0; border-radius: var(--button-radius); padding: 10px 14px; font-weight: 700;
    background: var(--primary); color: white; cursor: pointer; font-size: 14px;
}
.btn:hover, button:hover { background: var(--primary-dark); }
.btn-outline { background: white; color: var(--text); border: 1px solid var(--line); }
.btn-outline:hover { background: #f9fafb; }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #b91c1c; }
.btn-success { background: var(--success); }
.btn-warning { background: var(--warning); }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.field { display: grid; gap: 7px; }
.field.full { grid-column: 1 / -1; }
label { font-weight: 700; font-size: 14px; }
input, select, textarea {
    width: 100%; border: 1px solid var(--line); border-radius: var(--button-radius); padding: 11px 12px;
    font: inherit; background: white; color: var(--text);
}
textarea { min-height: 96px; resize: vertical; }
.help { color: var(--muted); font-size: 13px; }
.alert { border-radius: var(--button-radius); padding: 13px 15px; margin-bottom: 16px; border: 1px solid var(--line); background: white; }
.alert-success { border-color: #bbf7d0; background: #f0fdf4; }
.alert-danger { border-color: #fecaca; background: #fef2f2; }
.alert-warning { border-color: #fed7aa; background: #fff7ed; }
.badge { display: inline-flex; padding: 5px 9px; border-radius: 999px; font-size: 12px; font-weight: 800; background: #e5e7eb; }
.badge-pendente { background: #fef3c7; color: #92400e; }
.badge-aprovado { background: #dbeafe; color: #1e40af; }
.badge-rejeitado { background: #fee2e2; color: #991b1b; }
.badge-comprado { background: #ede9fe; color: #5b21b6; }
.badge-recebido { background: #dcfce7; color: #166534; }
.product-thumb { width: 58px; height: 58px; object-fit: cover; border-radius: var(--button-radius); border: 1px solid var(--line); }
.login-card { width: min(420px, calc(100vw - 32px)); }
.login-card h1 { margin: 0 0 6px; }
.login-card p { color: var(--muted); margin-top: 0; }
.item-row { display: grid; grid-template-columns: 2fr 1.4fr .8fr 1fr 1.4fr; gap: 10px; margin-bottom: 10px; }
.hr { height: 1px; background: var(--line); margin: 16px 0; }
@media (max-width: 900px) {
    .sidebar { position: static; width: auto; }
    .main { margin-left: 0; padding: 18px; }
    .grid-2, .grid-3, .grid-4, .form-grid { grid-template-columns: 1fr; }
    .topbar { align-items: flex-start; flex-direction: column; }
    .item-row { grid-template-columns: 1fr; }
}
.stock-low { color: var(--danger); font-weight: 800; }
.badge-cancelado { background: #e5e7eb; color: #374151; }
.badge-ajuste { background: #f3f4f6; color: #374151; }
@media print {
    .sidebar, .topbar, .actions { display: none !important; }
    .main { margin: 0; padding: 0; }
    .card { box-shadow: none; border: 1px solid #ddd; }
}

.layout-preview {
    display: grid;
    gap: 12px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: var(--card-radius);
    background: var(--bg);
}
.layout-preview-box {
    background: var(--card);
    color: var(--text);
    border: 1px solid var(--line);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 16px;
}
.color-field { display: grid; grid-template-columns: 54px 1fr; gap: 10px; align-items: center; }
.color-field input[type="color"] { padding: 3px; height: 44px; }
.settings-section-title { margin: 4px 0 0; grid-column: 1 / -1; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; font-size: 12px; }