:root {
    --bg: #f4f6f8;
    --panel: #ffffff;
    --text: #182230;
    --muted: #667085;
    --border: #e4e7ec;
    --primary: #1f4fd8;
    --primary-soft: #eef4ff;
    --danger: #b42318;
    --danger-soft: #fef3f2;
    --success: #027a48;
    --success-soft: #ecfdf3;
    --sidebar: #101828;
    --sidebar-muted: #98a2b3;
    --shadow: 0 10px 30px rgba(16, 24, 40, .08);
}

* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--text); }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.app-shell { min-height: 100vh; display: flex; }
.sidebar { width: 260px; background: var(--sidebar); color: #fff; padding: 22px 16px; position: fixed; top: 0; bottom: 0; left: 0; }
.brand { display: flex; align-items: center; gap: 12px; margin-bottom: 28px; }
.brand-mark { width: 42px; height: 42px; border-radius: 14px; background: var(--primary); display: grid; place-items: center; font-weight: 800; }
.brand small { display: block; color: var(--sidebar-muted); margin-top: 2px; }
.nav { display: flex; flex-direction: column; gap: 5px; }
.nav a { color: #d0d5dd; padding: 11px 12px; border-radius: 12px; }
.nav a:hover { background: rgba(255,255,255,.08); text-decoration: none; color: #fff; }
.nav a.disabled { opacity: .45; pointer-events: none; }

.main-area { margin-left: 260px; width: calc(100% - 260px); min-height: 100vh; }
.topbar { height: 76px; background: #fff; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; padding: 0 28px; position: sticky; top: 0; z-index: 5; }
.topbar h1 { margin: 0; font-size: 22px; }
.user-menu { display: flex; align-items: center; gap: 10px; color: var(--muted); }
.user-menu span { color: var(--text); font-weight: 700; }
.user-menu small { background: var(--primary-soft); color: var(--primary); padding: 4px 8px; border-radius: 999px; }
.menu-toggle { display: none; border: 0; background: var(--primary-soft); color: var(--primary); border-radius: 10px; padding: 8px 10px; font-size: 18px; }
.content-area { padding: 28px; }

.card { background: var(--panel); border: 1px solid var(--border); border-radius: 18px; padding: 20px; box-shadow: var(--shadow); }
.mt { margin-top: 20px; }
.grid { display: grid; gap: 18px; }
.cards-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.two-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.stat-card span { color: var(--muted); display: block; margin-bottom: 10px; }
.stat-card strong { font-size: 32px; }
.section-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-header h2, .card h2 { margin: 0 0 12px; font-size: 19px; }
.section-header h2 { margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; color: var(--muted); font-size: 13px; border-bottom: 1px solid var(--border); padding: 12px 10px; }
td { border-bottom: 1px solid var(--border); padding: 12px 10px; vertical-align: top; }
tr:hover td { background: #fafafa; }
.empty { text-align: center; color: var(--muted); padding: 28px; }

.badge { display: inline-flex; align-items: center; border-radius: 999px; padding: 4px 9px; font-size: 12px; background: #f2f4f7; color: #344054; }
.badge.ok { background: var(--success-soft); color: var(--success); }
.badge.off { background: var(--danger-soft); color: var(--danger); }

.alert { padding: 12px 14px; border-radius: 12px; margin-bottom: 18px; }
.alert.success { background: var(--success-soft); color: var(--success); }
.alert.error { background: var(--danger-soft); color: var(--danger); }

.form-stack { display: grid; gap: 15px; }
.form-stack.compact { max-width: 520px; }
.filters { display: flex; gap: 14px; align-items: end; flex-wrap: wrap; }
label { display: grid; gap: 6px; font-weight: 700; font-size: 14px; }
input, select { border: 1px solid var(--border); border-radius: 12px; padding: 11px 12px; font: inherit; min-width: 220px; background: #fff; }
input:focus, select:focus { outline: 3px solid var(--primary-soft); border-color: var(--primary); }
.btn { display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); background: #fff; color: var(--text); padding: 11px 15px; border-radius: 12px; cursor: pointer; font-weight: 700; }
.btn.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.actions-row { display: flex; gap: 10px; flex-wrap: wrap; }

.details { display: grid; grid-template-columns: 150px 1fr; gap: 9px 16px; }
.details dt { color: var(--muted); font-weight: 700; }
.details dd { margin: 0; }

.guest-body { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: radial-gradient(circle at top left, #dbeafe, transparent 35%), var(--bg); }
.guest-card { width: min(440px, 100%); }
.login-box { background: #fff; border: 1px solid var(--border); border-radius: 22px; padding: 28px; box-shadow: var(--shadow); }
.login-brand { margin-bottom: 22px; }
.login-box input { min-width: 100%; }

@media (max-width: 900px) {
    .sidebar { transform: translateX(-100%); transition: transform .2s ease; z-index: 20; }
    .sidebar.open { transform: translateX(0); }
    .main-area { margin-left: 0; width: 100%; }
    .menu-toggle { display: inline-flex; }
    .cards-4, .two-cols { grid-template-columns: 1fr; }
    .topbar { padding: 0 16px; }
    .content-area { padding: 16px; }
    .user-menu small { display: none; }
}
.badge.warn { background: #fffaeb; color: #b54708; }
.block { display: block; margin-top: 4px; }

textarea { border: 1px solid var(--border); border-radius: 12px; padding: 11px 12px; font: inherit; background: #fff; min-width: min(100%, 720px); }
textarea:focus { outline: 3px solid var(--primary-soft); border-color: var(--primary); }
.order-client-box { display: grid; gap: 4px; background: var(--primary-soft); border: 1px solid #c7d7fe; border-radius: 16px; padding: 14px 16px; margin-bottom: 18px; }
.order-client-box strong { font-size: 18px; }
.order-client-box span, .order-client-box small { color: var(--muted); }
.recommendations-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.mini-card { border: 1px solid var(--border); border-radius: 16px; padding: 14px; background: #fcfcfd; max-height: 280px; overflow: auto; }
.mini-card.wide { grid-column: span 2; }
.mini-card h3 { margin: 0 0 10px; font-size: 15px; }
.quick-product { width: 100%; text-align: left; border: 1px solid var(--border); background: #fff; padding: 10px; border-radius: 12px; margin-bottom: 8px; cursor: pointer; }
.quick-product:hover { border-color: var(--primary); outline: 3px solid var(--primary-soft); }
.quick-product strong { display: block; font-size: 13px; }
.quick-product small { display: block; color: var(--muted); margin-top: 3px; }
.inner-card { box-shadow: none; }
.order-lines-table input { min-width: 160px; width: 100%; }
.btn.danger-line { color: var(--danger); }
@media (max-width: 900px) {
    .recommendations-grid { grid-template-columns: 1fr; }
    .mini-card.wide { grid-column: span 1; }
}

.topbar-alert { display: inline-flex; align-items: center; gap: 6px; color: var(--text); font-weight: 700; }
.topbar-alert span { min-width: 22px; height: 22px; border-radius: 999px; display: inline-grid; place-items: center; background: var(--danger); color: #fff; font-size: 12px; }
.row-unread td { background: #fffbeb; }
.compact-list { display: grid; gap: 10px; }
.list-item { display: flex; align-items: center; justify-content: space-between; gap: 14px; border: 1px solid var(--border); border-radius: 14px; padding: 12px; background: #fff; }
.list-item.unread { border-color: #fedf89; background: #fffbeb; }
.list-item strong { display: block; }
.list-item small { display: block; color: var(--muted); margin-top: 4px; }