:root {
    --ink: #17202a;
    --muted: #667085;
    --line: #d6dae1;
    --panel: #ffffff;
    --bg: #f4f7f9;
    --accent: #008c7a;
    --accent-dark: #00695c;
    --warn: #a15c00;
}

* { box-sizing: border-box; }
body {
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, Segoe UI, Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
}
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 14px clamp(16px, 4vw, 42px);
    background: var(--panel);
    border-bottom: 1px solid var(--line);
    position: sticky;
    top: 0;
    z-index: 2;
}
.brand {
    color: var(--ink);
    font-size: 20px;
    font-weight: 800;
    text-decoration: none;
}
nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
}
nav a, .back {
    color: var(--muted);
    text-decoration: none;
    font-size: 14px;
}
main { max-width: 1180px; margin: 0 auto; padding: 28px 16px 56px; }
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 24px;
    align-items: end;
    padding: 24px 0 18px;
}
.eyebrow {
    color: var(--accent-dark);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 12px;
    letter-spacing: .06em;
}
h1 { font-size: clamp(30px, 5vw, 56px); line-height: 1.02; margin: 8px 0 12px; }
h2 { font-size: 20px; margin: 8px 0; }
p { color: var(--muted); line-height: 1.55; }
.search, .checkout-form {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 12px;
    display: grid;
    gap: 10px;
}
input, select, button {
    width: 100%;
    min-height: 46px;
    border-radius: 8px;
    border: 1px solid var(--line);
    padding: 0 12px;
    font: inherit;
}
button, .button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 0 16px;
    border: 0;
    border-radius: 8px;
    color: white;
    background: var(--accent);
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}
.inline-form {
    margin-top: 8px;
}
.inline-form button {
    min-height: 36px;
    width: auto;
    padding: 0 12px;
    font-size: 13px;
}
.categories {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin: 10px 0 24px;
}
.categories a {
    background: #e8f4f1;
    color: var(--accent-dark);
    border: 1px solid #b9ddd6;
    border-radius: 8px;
    padding: 14px;
    text-decoration: none;
    font-weight: 800;
    text-align: center;
}
.tool-groups {
    margin: 0 0 24px;
}
.section-head {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 16px;
}
.section-head h2 {
    margin-top: 2px;
}
.group-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}
.group-list a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    color: var(--ink);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 10px 14px;
    text-decoration: none;
    font-weight: 800;
}
.group-list a.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}
.group-list small {
    color: inherit;
    opacity: .7;
}
.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}
.product-card, .detail, .admin {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 18px;
}
.summary-box {
    background: #f9fbfc;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
    margin: 18px 0;
}
.summary-box h2 {
    margin-top: 0;
}
.summary-box p {
    margin: 6px 0;
}
.admin-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.admin-head h1 { margin: 0; }
.product-card span, .quote-box span, .metrics span {
    color: var(--muted);
    font-size: 13px;
}
.price {
    font-size: 24px;
    font-weight: 900;
    margin: 12px 0;
}
.detail { max-width: 760px; margin: 0 auto; }
.quote-box {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 18px 0;
}
.quote-box > div, .quote-box small, .metrics > div {
    background: #f9fbfc;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 14px;
}
.quote-box strong, .metrics strong {
    display: block;
    margin-top: 4px;
    font-size: 22px;
}
.quote-box strong span[data-total-usdt] {
    color: inherit;
    font-size: 30px;
    line-height: 1;
    font-weight: 950;
}
.quote-box small { grid-column: 1 / -1; color: var(--muted); }
.quote-box .quote-total-secondary {
    display: block;
    background: transparent;
    border: 0;
    padding: 0;
    margin-top: 4px;
    color: var(--muted);
    font-size: 14px;
    font-weight: 700;
}
.quote-box .quote-total-secondary span[data-total-mxn] {
    color: inherit;
    font-size: inherit;
    font-weight: inherit;
}
.warning {
    color: var(--warn);
    background: #fff8e6;
    border: 1px solid #f0d08a;
    border-radius: 8px;
    padding: 12px;
}
.notice {
    background: #eef7ff;
    border: 1px solid #bdddf7;
    border-radius: 8px;
    padding: 12px;
    margin: 12px 0;
}
.notice small {
    display: block;
    color: var(--muted);
    margin-top: 4px;
}
.metrics {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    margin: 12px 0 24px;
}
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}
th, td {
    text-align: left;
    border-bottom: 1px solid var(--line);
    padding: 10px;
    font-size: 14px;
    vertical-align: top;
}
td small { display: block; color: var(--muted); margin-top: 5px; line-height: 1.35; }

@media (max-width: 820px) {
    .topbar { align-items: flex-start; flex-direction: column; }
    .hero, .grid, .quote-box, .metrics { grid-template-columns: 1fr; }
    .categories { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    h1 { font-size: 34px; }
}