:root {
    --bg: #f4f7fb;
    --panel: #ffffff;
    --ink: #1d2633;
    --muted: #627084;
    --brand: #0f8b8d;
    --brand-dark: #0b6264;
    --line: #d9e1ea;
    --warn: #b54708;
    --danger: #b42318;
    --btn-info: #2563eb;
    --btn-print: #4f46e5;
    --btn-payment: #0f766e;
    --btn-success: #138a4c;
    --btn-new-sale: #138a4c;
    --btn-new-quote: #2563eb;
    --btn-new-product: #0f766e;
    --sidebar-bg: #17212f;
    --sidebar-active: #22344a;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--ink);
    background: var(--bg);
}
a { color: var(--brand-dark); text-decoration: none; }
input, select, textarea, button {
    width: 100%;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 10px 12px;
    font: inherit;
}
textarea { min-height: 90px; }
button, .button {
    background: var(--brand);
    color: #fff;
    border-color: var(--brand);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-align: center;
    min-height: 38px;
    padding: 9px 14px;
    border-radius: 6px;
    line-height: 1.2;
    white-space: nowrap;
}
table .button, table button { min-height: 34px; padding: 8px 12px; }
button.secondary, .button.secondary { background: #fff; color: var(--brand-dark); }
button.info, .button.info {
    background: var(--btn-info);
    border-color: var(--btn-info);
    color: #fff;
}
button.print, .button.print {
    background: var(--btn-print);
    border-color: var(--btn-print);
    color: #fff;
}
button.payment, .button.payment {
    background: var(--btn-payment);
    border-color: var(--btn-payment);
    color: #fff;
}
button.danger, .button.danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}
button.warning, .button.warning {
    background: var(--warn);
    border-color: var(--warn);
    color: #fff;
}
button.success, .button.success {
    background: var(--btn-success);
    border-color: var(--btn-success);
    color: #fff;
}
button.new-sale, .button.new-sale {
    background: var(--btn-new-sale);
    border-color: var(--btn-new-sale);
    color: #fff;
}
button.new-quote, .button.new-quote {
    background: var(--btn-new-quote);
    border-color: var(--btn-new-quote);
    color: #fff;
}
button.new-product, .button.new-product {
    background: var(--btn-new-product);
    border-color: var(--btn-new-product);
    color: #fff;
}
label { display: grid; gap: 6px; font-weight: 700; color: var(--muted); }
table { width: 100%; border-collapse: collapse; background: var(--panel); }
th, td { padding: 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 13px; }
.install, .login { min-height: 100vh; display: grid; place-items: center; }
.install-box, .login-box {
    width: min(760px, calc(100vw - 32px));
    background: var(--panel);
    padding: 28px;
    border: 1px solid var(--line);
    border-radius: 8px;
}
.login-box { max-width: 420px; }
.grid-form, .form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.grid-form button, .full { grid-column: 1 / -1; }
.app { display: grid; grid-template-columns: 250px minmax(0, 1fr); min-height: 100vh; }
.sidebar { background: var(--sidebar-bg); color: #fff; padding: 20px; }
.brand {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 22px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 96px;
    overflow: hidden;
    text-align: center;
}
.brand-logo {
    display: block;
    width: 100%;
    max-width: 200px;
    height: 90px;
    object-fit: contain;
    object-position: center;
}
.sidebar nav { display: grid; gap: 6px; }
.sidebar a {
    color: #dbe7f3;
    padding: 10px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar a img { width: 18px; height: 18px; flex: 0 0 18px; }
.sidebar a.active, .sidebar a:hover { background: var(--sidebar-active); color: #fff; }
.content { padding: 24px; }
.topbar { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; align-items: center; margin-bottom: 18px; gap: 12px; }
.topbar h1 { margin: 0; }
.top-actions, .quick-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.top-actions .button, .quick-actions .button { width: auto; padding: 9px 14px; }
.quick-actions { margin-bottom: 18px; }
.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
    margin-bottom: 18px;
}
.cards { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin-bottom: 18px; }
.dashboard-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.metric { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 16px; }
.metric strong { display: block; font-size: 24px; margin-top: 8px; }
.metric span { display: block; margin-top: 6px; color: var(--muted); font-size: 13px; }
.dashboard-metrics .metric { color: #fff; border: 0; }
.dashboard-metrics .metric strong, .dashboard-metrics .metric span { color: #fff; }
.metric-green { background: var(--btn-success); }
.metric-blue { background: var(--btn-info); }
.metric-purple { background: var(--btn-print); }
.metric-orange { background: var(--warn); }
.alert { padding: 12px; border-radius: 6px; margin-bottom: 14px; background: #e6f6f4; border: 1px solid #b7dfdb; }
.alert.danger { background: #fff0ed; border-color: #ffd0c8; color: var(--danger); }
.status { font-weight: 700; color: var(--brand-dark); }
.actions { display: flex; gap: 8px; flex-wrap: wrap; }
.actions .button, .actions button { width: auto; padding: 8px 10px; }
.pagination {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 14px 0 22px;
    padding: 12px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    color: var(--muted);
}
.product-search-results {
    display: grid;
    gap: 6px;
    margin-top: 8px;
    padding: 8px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #fff;
}
.product-search-results[hidden] { display: none; }
.product-result {
    width: 100%;
    text-align: left;
    background: #f8fafc;
    color: var(--ink);
    border: 1px solid var(--line);
    padding: 9px 10px;
}
.product-result:hover {
    background: #eef6ff;
    border-color: var(--btn-info);
}
.product-result strong,
.product-result small {
    display: block;
}
.product-result small {
    margin-top: 3px;
    color: var(--muted);
}
.low { color: var(--danger); font-weight: 700; }
.muted { color: var(--muted); }
.product-form {
    display: grid;
    grid-template-columns: 240px minmax(0, 1fr);
    gap: 18px;
}
.product-fields, .advanced-grid, .search-form {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.image-field { display: grid; gap: 12px; align-content: start; }
.image-preview {
    width: 100%;
    aspect-ratio: 1 / 1;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
    display: grid;
    place-items: center;
    overflow: hidden;
    color: var(--muted);
}
.image-preview img, .thumb {
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.logo-preview {
    aspect-ratio: 3 / 1;
    min-height: 100px;
}
.logo-preview img {
    object-fit: contain;
    padding: 10px;
}
.thumb {
    width: 64px;
    height: 64px;
    border-radius: 6px;
    border: 1px solid var(--line);
    background: #f8fafc;
}
.search-form { grid-template-columns: minmax(0, 1fr) 160px; }
.discount-form {
    display: grid;
    grid-template-columns: 180px minmax(180px, 260px) 170px;
    gap: 10px;
    align-items: end;
    margin: 12px 0;
}
.bar-chart { display: grid; gap: 12px; }
.bar-row {
    display: grid;
    grid-template-columns: 95px minmax(0, 1fr) 110px;
    gap: 10px;
    align-items: center;
}
.bar-row div { height: 12px; background: #e8eef5; border-radius: 999px; overflow: hidden; }
.bar-row i { display: block; height: 100%; background: var(--brand); }
.bar-row i.status-bar { background: var(--btn-print); }
.color-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.color-grid input[type="color"] {
    min-height: 44px;
    padding: 4px;
}
.color-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    align-items: center;
}
.panel-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.panel-title-row h2 { margin: 0 0 6px; }
.panel-title-row p { margin: 0; }
.panel-title-row .button { width: auto; white-space: nowrap; }
.measure-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.checkbox-grid {
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 8px 14px;
    background: #f8fafc;
}
.checkbox-grid legend {
    padding: 0 6px;
    font-weight: 700;
    color: var(--muted);
}
.checkbox-grid label {
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
}
.checkbox-grid input { width: auto; }
.checklist {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #f8fafc;
}
.checklist strong { grid-column: 1 / -1; }
.checklist label {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--ink);
    font-weight: 400;
}
.checklist input { width: auto; }
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, .55);
    display: grid;
    place-items: center;
    padding: 20px;
    z-index: 50;
}
.modal-backdrop[hidden] { display: none; }
.modal {
    width: min(460px, 100%);
    background: #fff;
    border-radius: 8px;
    border: 1px solid var(--line);
    padding: 20px;
    box-shadow: 0 20px 50px rgba(15, 23, 42, .25);
}
.modal h2 { margin-top: 0; }
@media (max-width: 900px) {
    .app { grid-template-columns: 1fr; }
    .sidebar { position: static; }
    .topbar { grid-template-columns: 1fr; align-items: start; }
    .cards, .dashboard-grid, .grid-form, .form-grid, .product-form, .product-fields, .advanced-grid, .search-form, .discount-form, .checklist, .bar-row { grid-template-columns: 1fr; }
    .panel-title-row { display: grid; }
}