:root {
    --ink: #171916;
    --steel: #363a34;
    --muted: #696d66;
    --paper: #f2f0e9;
    --white: #fffdf7;
    --line: #c8c7bd;
    --yellow: #f5b800;
    --yellow-dark: #d69d00;
    --danger: #a52d22;
    --success: #23633a;
    --radius: 0.25rem;
    --content: 82rem;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    line-height: 1.55;
}

a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; }
button { cursor: pointer; }
h1, h2, h3, p, dl, dd { margin: 0; }
:focus-visible { outline: 3px solid var(--yellow); outline-offset: 3px; }
:target { scroll-margin-top: 6rem; }

.skip-link {
    position: fixed;
    top: 0;
    left: 1rem;
    z-index: 100;
    padding: 0.75rem 1rem;
    color: var(--ink);
    background: var(--yellow);
    font-weight: 800;
    transform: translateY(-120%);
}
.skip-link:focus { transform: translateY(0); }
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 30;
    color: var(--white);
    background: var(--ink);
    border-bottom: 4px solid var(--yellow);
}
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: min(calc(100% - 2rem), var(--content));
    min-height: 4.5rem;
    margin-inline: auto;
    gap: 2rem;
}
.brand { display: flex; align-items: center; gap: 0.75rem; font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.07em; }
.brand strong { color: var(--yellow); }
.brand-mark {
    display: grid;
    place-items: center;
    width: 2.75rem;
    aspect-ratio: 1;
    color: var(--ink);
    background: var(--yellow);
    font-size: 0.9rem;
    font-weight: 950;
    letter-spacing: -0.06em;
    clip-path: polygon(25% 0, 75% 0, 100% 25%, 100% 75%, 75% 100%, 25% 100%, 0 75%, 0 25%);
}
.nav-links { display: flex; align-items: center; gap: 0.25rem; font-size: 0.9rem; font-weight: 700; }
.nav-links a { display: inline-flex; align-items: center; min-height: 44px; padding: 0 0.75rem; }
.nav-links a:hover { color: var(--yellow); }
.nav-links .nav-cta { margin-left: 0.5rem; color: var(--ink); background: var(--yellow); }
.nav-links .nav-cta:hover { color: var(--ink); background: #ffd147; }

.public-site main { overflow: hidden; }
.hero {
    display: grid;
    grid-template-columns: 1.15fr 0.85fr;
    min-height: calc(100vh - 4.5rem);
    color: var(--white);
    background: var(--ink);
}
.hero-copy { padding: clamp(4rem, 8vw, 8rem) max(2rem, calc((100vw - var(--content)) / 2)); padding-right: clamp(2rem, 6vw, 6rem); }
.eyebrow { color: var(--yellow-dark); font-size: 0.73rem; font-weight: 900; letter-spacing: 0.16em; text-transform: uppercase; }
.hero .eyebrow { color: var(--yellow); }
.hero h1 {
    max-width: 12ch;
    margin: 1.5rem 0;
    font-size: clamp(3rem, 6.5vw, 6.75rem);
    line-height: 0.88;
    letter-spacing: -0.065em;
    text-transform: uppercase;
}
.hero h1 span { color: var(--yellow); }
.hero-intro { max-width: 42rem; color: #caccc6; font-size: clamp(1rem, 1.4vw, 1.25rem); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 2rem 0 3rem; }
.button {
    display: inline-flex;
    min-height: 46px;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.25rem;
    border: 2px solid var(--ink);
    border-radius: var(--radius);
    font-weight: 850;
    transition: transform 140ms ease, background 140ms ease;
}
.button:hover { transform: translateY(-2px); }
.button-primary { color: var(--ink); background: var(--yellow); border-color: var(--yellow); }
.button-primary:hover { background: #ffd147; border-color: #ffd147; }
.button-secondary { color: var(--ink); background: transparent; }
.hero .button-secondary { color: var(--white); border-color: #686b65; }
.button-quiet { color: var(--muted); background: transparent; border-color: var(--line); }
.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 44rem; border-top: 1px solid #4d504a; }
.hero-facts div { padding: 1rem 1rem 0 0; }
.hero-facts dt { font-size: 1.05rem; font-weight: 900; }
.hero-facts dd { color: #aeb0aa; font-size: 0.78rem; }
.hero-visual { position: relative; min-height: 35rem; overflow: hidden; background: var(--yellow); }
.hero-visual::before,
.hero-visual::after { content: ""; position: absolute; inset: 0; }
.hero-visual::before { background: repeating-linear-gradient(-45deg, transparent 0 1.5rem, rgba(23, 25, 22, 0.06) 1.5rem 3rem); }
.hero-visual::after { inset: auto 0 0; height: 7rem; background: var(--steel); clip-path: polygon(0 72%, 100% 0, 100% 100%, 0 100%); }
.measure-tape { position: absolute; top: 0; left: 0; right: 0; padding: 0.5rem; overflow: hidden; color: rgba(23, 25, 22, 0.6); border-bottom: 1px solid rgba(23, 25, 22, 0.3); font: 800 0.7rem ui-monospace, monospace; word-spacing: 1.5rem; }
.bolt { position: absolute; top: 50%; left: 50%; width: min(15rem, 35vw); transform: translate(-50%, -50%) rotate(-18deg); filter: drop-shadow(1.5rem 1.5rem 0 rgba(23, 25, 22, 0.14)); }
.bolt-head { position: relative; width: 100%; aspect-ratio: 1.12; background: var(--steel); clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); }
.bolt-head span { position: absolute; inset: 33%; background: var(--yellow); clip-path: polygon(25% 0, 75% 0, 100% 50%, 75% 100%, 25% 100%, 0 50%); }
.bolt-body { width: 48%; height: 16rem; margin: -0.2rem auto 0; background: repeating-linear-gradient(165deg, var(--steel) 0 0.75rem, #5b5f57 0.75rem 1.5rem); clip-path: polygon(0 0, 100% 0, 88% 100%, 50% 100%, 12% 100%); }
.hero-visual > p { position: absolute; right: 2rem; bottom: 2rem; z-index: 2; color: var(--white); font-size: 0.78rem; letter-spacing: 0.13em; text-align: right; }
.hero-visual > p strong { font-size: 1.2rem; }
.trust-strip { display: grid; grid-template-columns: repeat(3, 1fr); background: var(--white); border-bottom: 1px solid var(--line); }
.trust-strip p { padding: 1.25rem clamp(1rem, 3vw, 3rem); border-right: 1px solid var(--line); font-size: 0.86rem; }
.trust-strip strong { margin-right: 0.75rem; color: var(--yellow-dark); }

.section { padding: clamp(5rem, 9vw, 9rem) max(1rem, calc((100vw - var(--content)) / 2)); }
.section-head { display: grid; grid-template-columns: 1.2fr 0.8fr; align-items: end; gap: 3rem; margin-bottom: 3.5rem; }
.section-head h2 { max-width: 14ch; margin-top: 0.75rem; font-size: clamp(2.5rem, 5vw, 5rem); line-height: 0.95; letter-spacing: -0.055em; text-transform: uppercase; }
.section-head > p { max-width: 34rem; color: var(--muted); }
.category-grid { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); }
.category { min-height: 17rem; padding: 1.5rem; border-right: 1px solid var(--ink); background: var(--white); }
.category:last-child { border: 0; }
.category > span { font: 800 0.75rem ui-monospace, monospace; }
.category h3 { margin: 6rem 0 0.75rem; font-size: 1.3rem; }
.category p { color: var(--muted); font-size: 0.9rem; }
.category-dark { color: var(--white); background: var(--ink); }
.category-dark p { color: #b8bab4; }
.category-accent { background: var(--yellow); }
.category-accent p { color: var(--steel); }
.product-list { margin-top: 3rem; border-top: 3px solid var(--ink); }
.product-row { display: grid; grid-template-columns: 0.8fr 1.8fr 1fr 0.8fr; gap: 1rem; align-items: center; min-height: 3.5rem; padding: 0.65rem; border-bottom: 1px solid var(--line); font-size: 0.86rem; }
.product-head { min-height: 2.5rem; color: var(--muted); font-size: 0.7rem; font-weight: 800; text-transform: uppercase; }

.services { color: var(--white); background: var(--ink); }
.section-head.inverse > p { color: #b8bab4; }
.service-list { border-top: 1px solid #50534c; }
.service-list article { display: grid; grid-template-columns: 5rem 1fr; padding: 2rem 0; border-bottom: 1px solid #50534c; }
.service-list article > span { color: var(--yellow); font: 800 0.8rem ui-monospace, monospace; }
.service-list h3 { margin-bottom: 0.35rem; font-size: clamp(1.3rem, 2.5vw, 2rem); }
.service-list p { max-width: 42rem; color: #b8bab4; }

.contact { display: grid; grid-template-columns: 0.75fr 1.25fr; gap: clamp(2rem, 6vw, 6rem); background: var(--white); }
.contact h2 { margin: 0.75rem 0 1.5rem; font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 0.95; letter-spacing: -0.055em; text-transform: uppercase; }
.hours { margin: 2rem 0; border-top: 2px solid var(--ink); }
.hours div { display: flex; justify-content: space-between; padding: 0.75rem 0; border-bottom: 1px solid var(--line); font-size: 0.9rem; }
.hours dd { font-weight: 800; }
.map { min-height: 30rem; border: 1px solid var(--ink); background: var(--paper); }
.map iframe { width: 100%; height: 100%; min-height: 30rem; border: 0; filter: grayscale(1) contrast(1.08); }

.site-footer { display: flex; justify-content: space-between; gap: 2rem; padding: 2.5rem max(1rem, calc((100vw - var(--content)) / 2)); color: #b8bab4; background: var(--ink); font-size: 0.85rem; }
.site-footer > div:last-child { text-align: right; }
.site-footer a:hover { color: var(--yellow); }
.footer-brand { color: var(--white); font-weight: 850; }

.auth { display: grid; min-height: calc(100vh - 4.5rem); place-items: center; padding: 2rem; background: repeating-linear-gradient(-45deg, var(--paper) 0 2rem, #e9e7df 2rem 4rem); }
.auth-card { width: min(100%, 28rem); padding: clamp(2rem, 5vw, 3.5rem); background: var(--white); border-top: 0.5rem solid var(--yellow); box-shadow: 0.75rem 0.75rem 0 var(--ink); }
.auth-card h1 { margin: 0.75rem 0; font-size: clamp(2rem, 5vw, 3rem); line-height: 1; letter-spacing: -0.04em; }
.auth-card > p:not(.eyebrow) { color: var(--muted); }
.form-stack { display: grid; gap: 0.65rem; }
.auth-card .form-stack { margin-top: 2rem; }
.form-stack label, .form-stack legend { color: var(--steel); font-size: 0.78rem; font-weight: 850; }
.form-stack input, .form-stack select {
    width: 100%;
    min-height: 46px;
    padding: 0.65rem 0.75rem;
    color: var(--ink);
    background: var(--white);
    border: 1px solid #a7a89f;
    border-radius: var(--radius);
}
.form-stack fieldset { margin: 0.4rem 0; padding: 0; border: 0; }
.payment-options { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.5rem; margin-top: 0.5rem; }
.payment-options label { display: flex; align-items: center; min-height: 44px; padding: 0.5rem; border: 1px solid var(--line); }
.payment-options input { width: auto; min-height: auto; margin-right: 0.4rem; }

.pos-page { background: #e9e8e1; }
.pos-shell { width: min(calc(100% - 2rem), var(--content)); margin-inline: auto; padding: 2.5rem 0 6rem; }
.pos-head { display: flex; justify-content: space-between; align-items: center; gap: 2rem; margin-bottom: 2rem; }
.pos-head h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 0.95; letter-spacing: -0.055em; text-transform: uppercase; }
.pos-actions { display: flex; gap: 0.5rem; }
.alert { margin: 1rem 0; padding: 0.85rem 1rem; border-left: 0.35rem solid; font-weight: 700; }
.alert-error { color: #6f2018; background: #f9d7d3; border-color: var(--danger); }
.alert-success { color: #164e2b; background: #d7eddf; border-color: var(--success); }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); margin-bottom: 1.5rem; color: var(--white); background: var(--ink); }
.stat-grid article { padding: 1.25rem 1.5rem; border-right: 1px solid #4f524c; }
.stat-grid span { display: block; color: #aeb0aa; font-size: 0.75rem; text-transform: uppercase; }
.stat-grid strong { display: block; margin-top: 0.25rem; font-size: 1.8rem; }
.pos-grid { display: grid; grid-template-columns: minmax(19rem, 0.72fr) minmax(29rem, 1.28fr); gap: 1.5rem; align-items: start; }
.panel { padding: 1.5rem; background: var(--white); border: 1px solid var(--line); }
.panel-title { display: grid; grid-template-columns: 2.5rem 1fr; gap: 0.75rem; align-items: start; padding-bottom: 1.25rem; margin-bottom: 1.5rem; border-bottom: 2px solid var(--ink); }
.panel-title > span { color: var(--yellow-dark); font: 900 0.75rem ui-monospace, monospace; }
.panel-title h2 { font-size: 1.6rem; line-height: 1; }
.stock-note { min-height: 2.25rem; padding: 0.6rem 0.75rem; color: var(--muted); background: var(--paper); font-size: 0.78rem; }
.charge-total { display: flex; align-items: end; justify-content: space-between; margin: 0.75rem 0 0.25rem; padding: 1rem 0; border-block: 1px solid var(--line); }
.charge-total span { color: var(--muted); font-size: 0.8rem; text-transform: uppercase; }
.charge-total strong { font-size: 2rem; line-height: 1; }
.sales-table { border-top: 1px solid var(--line); }
.sales-row { display: grid; grid-template-columns: 0.6fr 1.5fr 0.8fr 0.8fr; gap: 0.75rem; align-items: center; min-height: 3.75rem; padding: 0.6rem; border-bottom: 1px solid var(--line); font-size: 0.82rem; }
a.sales-row:hover { background: #fff7db; }
.sales-row small { display: block; color: var(--muted); }
.sales-header { min-height: 2.25rem; color: var(--muted); font-size: 0.68rem; font-weight: 850; text-transform: uppercase; }
.empty-state { padding: 4rem 1rem; color: var(--muted); text-align: center; }

.inventory-section { padding-top: 5rem; }
.section-head.compact { margin-bottom: 1.5rem; }
.section-head.compact h2 { font-size: clamp(2.5rem, 5vw, 4rem); }
.inventory-layout { display: grid; grid-template-columns: minmax(0, 1fr) 20rem; gap: 1.5rem; align-items: start; }
.inventory-table { background: var(--white); border-top: 3px solid var(--ink); }
.inventory-row { display: grid; grid-template-columns: 0.9fr 1.7fr 0.75fr 0.55fr 1fr; gap: 0.75rem; align-items: center; min-height: 4rem; padding: 0.65rem 0.8rem; border-bottom: 1px solid var(--line); font-size: 0.8rem; }
.inventory-row small { display: block; color: var(--muted); }
.inventory-header { min-height: 2.25rem; color: var(--muted); font-size: 0.65rem; font-weight: 850; text-transform: uppercase; }
.stock { font-weight: 900; }
.stock-low::after { content: " bajo"; color: var(--danger); font-size: 0.65rem; font-weight: 700; }
.stock-form { display: flex; gap: 0.3rem; }
.stock-form input { width: 4rem; min-height: 38px; padding: 0.4rem; border: 1px solid var(--line); }
.stock-form button { min-height: 38px; color: var(--white); background: var(--steel); border: 0; font-size: 0.72rem; font-weight: 800; }
.add-product h3 { margin-bottom: 0.75rem; font-size: 1.5rem; }
.form-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 0.65rem; }
.form-pair label { display: grid; gap: 0.35rem; }

.receipt-page { background: #deddd6; }
.receipt-shell { width: min(calc(100% - 2rem), 38rem); margin: 3rem auto 6rem; }
.receipt-actions { display: flex; justify-content: space-between; gap: 1rem; margin-bottom: 1.5rem; }
.receipt { padding: clamp(2rem, 7vw, 4rem); background: var(--white); box-shadow: 0.6rem 0.6rem 0 var(--ink); }
.receipt > header { text-align: center; }
.receipt > header .brand-mark { margin: 0 auto 0.75rem; }
.receipt > header h1 { font-size: 1.5rem; text-transform: uppercase; }
.receipt-meta { margin: 2rem 0; padding-block: 1rem; border-block: 1px dashed var(--muted); }
.receipt-meta p { display: flex; justify-content: space-between; gap: 1rem; font-size: 0.82rem; }
.receipt-meta span { color: var(--muted); }
.receipt-lines > div { display: grid; grid-template-columns: 1fr auto auto; gap: 1rem; padding: 0.75rem 0; border-bottom: 1px solid var(--line); font-size: 0.82rem; }
.receipt-lines small { display: block; color: var(--muted); }
.receipt-total { display: flex; justify-content: space-between; align-items: end; padding: 1.25rem 0; border-bottom: 3px solid var(--ink); }
.receipt-total strong { font-size: 1.5rem; }
.receipt > footer { display: grid; gap: 0.25rem; margin-top: 1.5rem; text-align: center; font-size: 0.8rem; }
.receipt > footer small { color: var(--muted); }

@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; }
    .hero-copy { padding-inline: max(1rem, calc((100vw - 42rem) / 2)); }
    .hero-visual { min-height: 28rem; }
    .bolt { width: 12rem; }
    .category-grid { grid-template-columns: repeat(2, 1fr); }
    .category { border-bottom: 1px solid var(--ink); }
    .category:nth-child(2) { border-right: 0; }
    .contact, .pos-grid, .inventory-layout { grid-template-columns: 1fr; }
    .add-product { max-width: none; }
}

@media (max-width: 680px) {
    .nav { align-items: flex-start; padding-block: 0.65rem; }
    .brand > span:last-child { display: none; }
    .nav-links { flex-wrap: wrap; justify-content: flex-end; }
    .nav-links a:not(.nav-cta) { display: none; }
    .hero { min-height: 0; }
    .hero-copy { padding: 4rem 1rem; }
    .hero h1 { font-size: clamp(2.7rem, 15vw, 4.5rem); }
    .hero-facts, .trust-strip, .stat-grid { grid-template-columns: 1fr; }
    .hero-facts div, .trust-strip p, .stat-grid article { border-right: 0; border-bottom: 1px solid var(--line); }
    .section { padding: 4.5rem 1rem; }
    .section-head { grid-template-columns: 1fr; gap: 1.25rem; margin-bottom: 2rem; }
    .category-grid { grid-template-columns: 1fr; }
    .category { min-height: auto; border-right: 0; }
    .category h3 { margin-top: 3rem; }
    .product-head, .sales-header, .inventory-header { display: none; }
    .product-row, .sales-row, .inventory-row { grid-template-columns: 1fr 1fr; padding: 1rem 0.5rem; }
    .product-row > span::before, .product-row > strong::before,
    .sales-row > span::before, .inventory-row > span::before {
        content: attr(data-label);
        display: block;
        color: var(--muted);
        font-size: 0.62rem;
        font-weight: 800;
        text-transform: uppercase;
    }
    .contact { padding-inline: 1rem; }
    .site-footer, .pos-head { align-items: flex-start; flex-direction: column; }
    .site-footer > div:last-child { text-align: left; }
    .pos-shell { width: min(calc(100% - 1rem), var(--content)); padding-top: 1.5rem; }
    .pos-actions { width: 100%; flex-wrap: wrap; }
    .payment-options { grid-template-columns: 1fr; }
    .inventory-row .stock-form { align-self: end; }
    .receipt-actions { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { transition: none !important; }
}

@media print {
    .site-header, .site-footer, .receipt-actions { display: none; }
    body, .receipt-page { background: #fff; }
    .receipt-shell { width: 80mm; margin: 0 auto; }
    .receipt { padding: 6mm; box-shadow: none; }
}