:root {
    --bg: #f5f7f9;
    --surface: #ffffff;
    --text: #1f2933;
    --muted: #627282;
    --line: #d9e2ea;
    --primary: #146b7f;
    --primary-dark: #0e4c5b;
    --accent: #d3922a;
    --danger: #b42318;
    --success: #237a45;
    --radius: 8px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

a {
    color: var(--primary);
    text-decoration: none;
}

.site-header,
.site-footer {
    align-items: center;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 24px;
    justify-content: space-between;
    padding: 14px clamp(16px, 4vw, 48px);
}

.site-footer {
    border-bottom: 0;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-size: 14px;
    margin-top: 48px;
}

.brand {
    align-items: center;
    color: var(--text);
    display: inline-flex;
    gap: 10px;
}

.brand-mark {
    align-items: center;
    background: var(--primary);
    border-radius: 8px;
    color: #fff;
    display: inline-flex;
    font-weight: 700;
    height: 38px;
    justify-content: center;
    width: 38px;
}

.brand small {
    color: var(--muted);
    display: block;
    font-size: 12px;
}

.main-nav {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: flex-end;
}

.page {
    margin: 0 auto;
    max-width: 1180px;
    padding: 28px clamp(16px, 4vw, 48px);
}

.hero {
    align-items: center;
    display: grid;
    gap: 28px;
    grid-template-columns: 1.2fr .8fr;
    margin-bottom: 30px;
}

.hero h1 {
    font-size: clamp(32px, 6vw, 56px);
    line-height: 1.05;
    margin: 0 0 12px;
}

.hero p,
.muted {
    color: var(--muted);
}

.hero-panel {
    background: #0f3944;
    border-radius: var(--radius);
    color: #fff;
    min-height: 220px;
    padding: 28px;
}

.hero-panel strong {
    color: #f5c16e;
    display: block;
    font-size: 32px;
    margin-top: 22px;
}

.toolbar {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: space-between;
    margin: 24px 0;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tab,
.button,
button,
input[type="submit"] {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    color: var(--text);
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    justify-content: center;
    padding: 10px 14px;
}

.tab.active,
.button.primary,
button.primary,
input[type="submit"].primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}

.button.danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fill, minmax(245px, 1fr));
}

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    overflow: hidden;
}

.card-body {
    padding: 16px;
}

.product-image {
    aspect-ratio: 10 / 7;
    background: #eef4f8;
    object-fit: cover;
    width: 100%;
}

.badge,
.pill {
    background: #e6f2f5;
    border-radius: 999px;
    color: var(--primary-dark);
    display: inline-flex;
    font-size: 12px;
    font-weight: 700;
    padding: 3px 8px;
}

.price {
    color: var(--primary-dark);
    font-size: 22px;
    font-weight: 700;
}

.form-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
    display: grid;
    gap: 6px;
}

.field.full {
    grid-column: 1 / -1;
}

label {
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}

input,
select,
textarea {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    font: inherit;
    padding: 10px 12px;
    width: 100%;
}

input[type="checkbox"] {
    margin-right: 8px;
    width: auto;
}

textarea {
    min-height: 90px;
    resize: vertical;
}

.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 18px;
}

.split {
    align-items: start;
    display: grid;
    gap: 22px;
    grid-template-columns: 1fr 340px;
}

table {
    border-collapse: collapse;
    width: 100%;
}

th,
td {
    border-bottom: 1px solid var(--line);
    padding: 12px 10px;
    text-align: left;
    vertical-align: top;
}

th {
    color: var(--muted);
    font-size: 13px;
    text-transform: uppercase;
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.alert {
    border-radius: var(--radius);
    margin-bottom: 16px;
    padding: 12px 14px;
}

.alert-success {
    background: #e8f5ee;
    color: var(--success);
}

.alert-warning {
    background: #fff7e5;
    color: #805500;
}

.alert-danger {
    background: #fdebea;
    color: var(--danger);
}

.status {
    font-weight: 700;
    text-transform: capitalize;
}

@media (max-width: 820px) {
    .site-header,
    .site-footer,
    .hero,
    .split {
        grid-template-columns: 1fr;
    }

    .site-header,
    .site-footer {
        align-items: flex-start;
        display: grid;
    }

    .main-nav {
        justify-content: flex-start;
    }

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