/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --paper: #EDE8D9;
    --paper-alt: #E1E1CD;
    --ink: #141C17;
    --ink-soft: rgba(20, 28, 23, 0.7);
    --tech-green: #1F7A5C;
    --tech-green-dark: #14563F;
    --earth-brown: #6B4226;
    --gold: #A9791F;
    --line: #C7C4AC;
    --line-on-ink: rgba(237, 232, 217, 0.18);
    --white: #FBF8F1;
    --font-display: 'Barlow Condensed', sans-serif;
    --font-sans: 'Barlow', sans-serif;
    --font-mono: 'IBM Plex Mono', monospace;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--paper);
    color: var(--ink);
    line-height: 1.6;
    font-size: 17px;
}

.section {
    padding: 110px 0;
    border-bottom: 1px solid var(--line);
}
.section-hidden { display: none; }

.container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
}

/* ========== TYPOGRAPHY ========== */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.005em;
    line-height: 1.02;
}

h1 { font-size: clamp(3.4rem, 9vw, 6.4rem); }
h2 { font-size: clamp(2.4rem, 4.6vw, 3.6rem); margin-bottom: 1.1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.6rem; letter-spacing: 0.01em; }

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--tech-green);
    margin-bottom: 18px;
}
.eyebrow::before { content: '['; }
.eyebrow::after { content: ']'; }

.text-medium {
    color: var(--ink-soft);
    font-size: 1.05rem;
    max-width: 600px;
    line-height: 1.75;
}

.btn-primary, .btn-secondary {
    display: inline-block;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.82rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    padding: 15px 32px;
    border-radius: 3px;
    text-decoration: none;
    cursor: pointer;
}
.btn-primary {
    background-color: var(--tech-green);
    color: var(--white);
    border: 1px solid var(--tech-green);
}
.btn-primary:hover { background-color: var(--tech-green-dark); border-color: var(--tech-green-dark); }

.btn-secondary {
    background-color: transparent;
    color: var(--ink);
    border: 1px solid var(--ink);
}
.btn-secondary:hover { background-color: var(--ink); color: var(--paper); }

.highlight { color: var(--tech-green); }

/* ========== HEADER / NAV ========== */
header {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 999;
    padding: 18px 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
}

.nav-container {
    max-width: 1180px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: 0.01em;
    color: var(--ink);
    text-decoration: none;
    text-transform: uppercase;
}
.logo span { color: var(--tech-green); }

.nav-links {
    display: flex;
    gap: 30px;
    list-style: none;
    align-items: center;
}

.nav-links a {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--ink-soft);
    text-decoration: none;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    border-bottom: 1px solid transparent;
    padding-bottom: 2px;
}
.nav-links a::before {
    content: attr(data-index) ' ';
    color: var(--tech-green);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--ink);
    border-bottom-color: var(--tech-green);
}

.hamburger {
    display: none;
    background: none;
    border: 1px solid var(--ink);
    border-radius: 3px;
    cursor: pointer;
    padding: 8px 14px;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--ink);
}

/* ========== BRACKET FRAME (elemento distintivo) ========== */
.bracket-frame {
    position: relative;
}
.bracket-frame::before {
    content: '';
    position: absolute;
    inset: 14px;
    pointer-events: none;
    background-repeat: no-repeat;
    background-image:
        linear-gradient(to right, currentColor 2px, transparent 2px),
        linear-gradient(to bottom, currentColor 2px, transparent 2px),
        linear-gradient(to left, currentColor 2px, transparent 2px),
        linear-gradient(to bottom, currentColor 2px, transparent 2px),
        linear-gradient(to right, currentColor 2px, transparent 2px),
        linear-gradient(to top, currentColor 2px, transparent 2px),
        linear-gradient(to left, currentColor 2px, transparent 2px),
        linear-gradient(to top, currentColor 2px, transparent 2px);
    background-size: 20px 2px, 2px 20px, 20px 2px, 2px 20px, 20px 2px, 2px 20px, 20px 2px, 2px 20px;
    background-position: top left, top left, top right, top right, bottom right, bottom right, bottom left, bottom left;
}

/* ========== SECCIÓN 1: INICIO ========== */
#inicio { background: var(--paper); }

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
    padding: 60px 0 90px;
}

.hero-text .badge-hero {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.78rem;
    letter-spacing: 0.12em;
    color: var(--earth-brown);
    text-transform: uppercase;
    margin-bottom: 14px;
    display: block;
}

.hero-text p {
    font-size: 1.15rem;
    color: var(--ink-soft);
    max-width: 460px;
    margin: 22px 0 34px;
}

.hero-visual {
    background: var(--ink);
    color: var(--tech-green);
    height: 340px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-visual .inner-text {
    text-align: center;
    color: var(--paper);
}
.hero-visual .inner-text .spec-id {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    color: var(--tech-green);
    margin-bottom: 14px;
}
.hero-visual .inner-text strong {
    display: block;
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 800;
    letter-spacing: 0.02em;
}
.hero-visual .inner-text small {
    display: block;
    margin-top: 10px;
    font-size: 0.95rem;
    font-family: var(--font-sans);
    font-weight: 400;
    color: rgba(238, 231, 216, 0.65);
}

/* ---- Ficha técnica nutricional ---- */
.nutri-block {
    display: grid;
    grid-template-columns: 1fr 0.85fr;
    gap: 50px;
    align-items: start;
    margin: 40px 0 60px;
    background: var(--white);
    padding: 50px;
    border: 1px solid var(--line);
    border-radius: 4px;
}

.spec-sheet {
    font-family: var(--font-mono);
    border: 1px solid var(--ink);
}
.spec-sheet-head {
    background: var(--ink);
    color: var(--paper);
    padding: 12px 18px;
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    display: flex;
    justify-content: space-between;
}
.spec-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 13px 18px;
    border-top: 1px dashed var(--line);
    font-size: 0.92rem;
}
.spec-row .k { color: var(--ink-soft); text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.78rem; }
.spec-row .v { font-weight: 600; color: var(--ink); text-align: right; }
.spec-foot {
    padding: 13px 18px;
    border-top: 1px solid var(--ink);
    font-size: 0.78rem;
    color: var(--earth-brown);
    letter-spacing: 0.02em;
}

/* ---- Sustentabilidad ---- */
.sust-block {
    background: var(--ink);
    color: var(--paper);
    padding: 55px 50px;
    margin: 60px 0;
    border-radius: 4px;
}
.sust-block h2 { color: var(--paper); }
.sust-block h2 span { color: var(--gold); }

.diet-toggle-wrap {
    max-width: 500px;
    margin: 30px 0;
}
.diet-toggle-label {
    display: block;
    margin-bottom: 12px;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    opacity: 0.85;
}
.diet-toggle {
    display: inline-flex;
    flex-wrap: wrap;
    gap: 10px;
}
.diet-btn {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    padding: 11px 22px;
    border-radius: 999px;
    border: 1px solid var(--line-on-ink);
    background: transparent;
    color: var(--paper);
    opacity: 0.65;
    cursor: pointer;
    transition: opacity 0.15s ease, border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}
.diet-btn:hover { opacity: 1; border-color: var(--tech-green); }
.diet-btn.active {
    background: var(--tech-green);
    border-color: var(--tech-green);
    color: var(--white);
    opacity: 1;
}
.sust-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1px;
    margin-top: 30px;
    background: var(--line-on-ink);
    border: 1px solid var(--line-on-ink);
}
.sust-item {
    background: var(--ink);
    padding: 22px 20px;
}
.sust-item .value {
    font-family: var(--font-display);
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--gold);
    display: block;
}
.sust-item .label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.02em;
    opacity: 0.65;
}
.sust-footnote {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    opacity: 0.55;
    margin-top: 22px;
}

/* ---- FAQ ---- */
.faq-block {
    margin: 60px 0 20px;
    background: var(--white);
    padding: 50px;
    border: 1px solid var(--line);
    border-radius: 4px;
}
.faq-item {
    border-bottom: 1px solid var(--line);
    padding: 22px 0;
    cursor: pointer;
}
.faq-item:first-child { padding-top: 0; }
.faq-item:last-child { border-bottom: none; padding-bottom: 0; }
.faq-item .q {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    font-weight: 600;
    font-size: 1.05rem;
}
.faq-item .q .qnum {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--tech-green);
    margin-right: 6px;
}
.faq-item .q .icon { font-family: var(--font-mono); font-size: 1.1rem; color: var(--tech-green); flex-shrink: 0; }
.faq-item .a {
    display: none;
    color: var(--ink-soft);
    padding-top: 14px;
    max-width: 640px;
}
.faq-item.active .a { display: block; }

/* ========== SECCIÓN 2: ORIGEN ========== */
#origen { background: var(--paper-alt); }
.origen-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}
.origen-text p { margin-bottom: 1.2rem; color: var(--ink-soft); }

.values-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    margin-top: 30px;
    background: var(--line);
    border: 1px solid var(--line);
}
.value-card {
    background: var(--white);
    padding: 22px;
}
.value-card h4 {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--tech-green);
    margin-bottom: 6px;
}
.value-card p { font-size: 0.92rem; color: var(--ink-soft); margin: 0; }

.objectives-list {
    list-style: none;
    margin-top: 20px;
}
.objectives-list li {
    padding: 14px 0;
    border-bottom: 1px solid var(--line);
    display: flex;
    gap: 14px;
    color: var(--ink-soft);
}
.objectives-list li::before {
    content: "→";
    color: var(--tech-green);
    font-weight: bold;
    font-family: var(--font-mono);
}

.origen-side {
    background: var(--white);
    padding: 44px;
    border: 1px solid var(--line);
    border-radius: 4px;
}
.origen-side blockquote {
    font-family: var(--font-display);
    font-size: 1.9rem;
    font-weight: 700;
    text-transform: none;
    letter-spacing: 0;
    color: var(--ink);
    line-height: 1.25;
    border-left: 3px solid var(--tech-green);
    padding-left: 20px;
}
.origen-side .attrib {
    font-family: var(--font-mono);
    font-size: 0.78rem;
    color: var(--ink-soft);
    margin-top: 14px;
    letter-spacing: 0.03em;
}
.origen-location {
    margin-top: 30px;
    padding: 20px;
    border-top: 1px dashed var(--line);
}
.origen-location .k {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--earth-brown);
    display: block;
    margin-bottom: 6px;
}

/* ---- Dos razones de fondo (big ideas) ---- */
.big-ideas-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
    margin-top: 70px;
}
.big-idea-panel {
    background: var(--white);
    padding: 40px;
}
.big-idea-panel .big-idea-num {
    font-family: var(--font-display);
    font-size: 2.4rem;
    font-weight: 700;
    color: var(--line);
    display: block;
    line-height: 1;
    margin-bottom: 10px;
}
.big-idea-panel h3 { margin-bottom: 10px; }
.big-idea-panel p { color: var(--ink-soft); margin: 0; font-size: 0.95rem; }

/* ---- Valores (fila tipográfica, sin cajas) ---- */
.valores-block { margin-top: 70px; }
.valores-block > h3 { margin-top: 6px; }
.valores-row {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 30px;
}
.valor-item { flex: 1 1 220px; }
.valor-item .valor-num {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--line);
    display: block;
    line-height: 1;
    margin-bottom: 8px;
}
.valor-item h4 {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.88rem;
    color: var(--tech-green);
    margin-bottom: 6px;
}
.valor-item p { font-size: 0.92rem; color: var(--ink-soft); margin: 0; }

/* ---- Ética y normatividad (dentro de .sust-block) ---- */
.etica-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 24px;
    max-width: 800px;
}
.etica-grid h4 {
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
    color: var(--gold);
    margin-bottom: 8px;
}
.etica-grid p { opacity: 0.8; margin: 0; font-size: 0.95rem; }

/* ---- Objetivos + Alcance social ---- */
.objetivos-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    margin-top: 70px;
    align-items: start;
}
.objetivos-grid .origen-side p { margin-top: 14px; }
.audiencia-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}
.audiencia-pills .pill {
    background: var(--paper-alt);
    border: 1px solid var(--line);
    padding: 6px 14px;
    border-radius: 3px;
    font-size: 0.78rem;
    font-family: var(--font-mono);
}

/* ========== SECCIÓN 3: PRODUCCIÓN (proceso + portafolio) ========== */
#produccion { background: var(--paper); }
.produccion-divider {
    border-top: 1px solid var(--line);
    margin-top: 90px;
    padding-top: 60px;
    text-align: center;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.produccion-divider h2 { margin-top: 4px; }
.industria-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.industria-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    margin-top: 30px;
    background: var(--line);
    border: 1px solid var(--line);
}
.feature {
    background: var(--white);
    padding: 26px;
}
.feature .stepnum {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--tech-green);
    display: block;
    margin-bottom: 10px;
}
.feature h4 { font-family: var(--font-display); font-weight: 700; font-size: 1.15rem; text-transform: uppercase; }
.feature p { font-size: 0.9rem; color: var(--ink-soft); margin: 4px 0 0; }

.industria-image {
    background: var(--earth-brown);
    color: var(--white);
    height: 400px;
    position: relative;
}
.industria-image .content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 20px;
}
.industria-image .spec-id {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    opacity: 0.75;
    margin-bottom: 14px;
}
.industria-image .content strong {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 700;
    text-transform: uppercase;
    display: block;
}

/* ========== SECCIÓN 4: CATÁLOGO (integrada arriba en #produccion) ========== */
.catalogo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 28px;
    margin-top: 40px;
}

.categoria-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    margin-top: 44px;
    border-bottom: 1px solid var(--line);
}
.tab-btn {
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    padding: 14px 20px;
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ink-soft);
    cursor: pointer;
}
.tab-btn:hover { color: var(--ink); }
.tab-btn.active { color: var(--tech-green); border-bottom-color: var(--tech-green); }

.categoria-panel[hidden] { display: none; }
.categoria-desc { color: var(--ink-soft); max-width: 620px; margin: 28px 0 0; }
.categoria-panel .catalogo-grid { margin-top: 16px; }

.datos-clave-block {
    border-top: 1px solid var(--line);
    margin-top: 90px;
    padding-top: 60px;
}
.product-card {
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 4px;
    padding: 32px;
    display: flex;
    flex-direction: column;
}

.product-visual {
    height: 220px;
    border-radius: 3px;
    margin-bottom: 20px;
    background: var(--paper-alt);
    overflow: hidden;
}
.product-visual img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

.product-card .short-desc { flex-grow: 1; color: var(--ink-soft); margin: 8px 0 18px; }
.product-card .tag {
    font-family: var(--font-mono);
    color: var(--tech-green);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.product-card h3 { font-size: 2rem; font-family: var(--font-display); font-weight: 700; text-transform: uppercase; margin-top: 6px; }

/* ---- Formulario de contacto (usado en contact.html) ---- */
.contact-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.contact-form input,
.contact-form select,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--line);
    border-radius: 3px;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    background: var(--white);
    color: var(--ink);
}
.contact-form select { appearance: auto; }
.contact-form label {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ink-soft);
    margin-bottom: -6px;
}
.contact-form button {
    align-self: flex-start;
    font-family: var(--font-mono);
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    font-size: 0.82rem;
    padding: 15px 32px;
    border-radius: 3px;
    background: var(--tech-green);
    color: var(--white);
    border: 1px solid var(--tech-green);
    cursor: pointer;
    margin-top: 8px;
}
.contact-form button:hover { background: var(--tech-green-dark); border-color: var(--tech-green-dark); }

.product-details {
    display: none;
}

.product-details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    margin: 0 0 16px;
    border: 1px solid var(--line);
}
.product-details-grid > div {
    padding: 12px 16px;
    border-bottom: 1px solid var(--line);
}
.product-details-grid > div:nth-child(odd) { border-right: 1px solid var(--line); }
.product-details-grid .label {
    font-family: var(--font-mono);
    font-weight: 500;
    font-size: 0.72rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--ink-soft);
}
.product-details-grid .value { font-size: 0.95rem; font-weight: 600; }

.note-box {
    background: var(--paper-alt);
    padding: 16px 18px;
    border-left: 3px solid var(--earth-brown);
    margin: 14px 0;
}
.note-box p { margin: 0; font-size: 0.9rem; }
.note-box .k { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--earth-brown); display: block; margin-bottom: 6px; }

.expand-btn {
    background: none;
    border: none;
    border-bottom: 1px solid var(--ink);
    color: var(--ink);
    font-family: var(--font-mono);
    font-weight: 500;
    cursor: pointer;
    padding: 6px 0;
    font-size: 0.82rem;
    letter-spacing: 0.03em;
    text-transform: uppercase;
}
.expand-btn:hover { color: var(--tech-green); border-color: var(--tech-green); }

.purchase-options {
    margin-top: 20px;
    padding: 16px 18px;
    background: var(--paper-alt);
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
}
.purchase-options .k {
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}
.purchase-options .pill {
    background: var(--white);
    border: 1px solid var(--line);
    padding: 5px 14px;
    border-radius: 3px;
    font-size: 0.8rem;
    font-family: var(--font-mono);
}

.catalogo-footnote {
    text-align: center;
    margin-top: 40px;
    color: var(--ink-soft);
    font-size: 0.95rem;
}
.catalogo-footnote a { color: var(--tech-green); font-weight: 600; }

.frass-layout {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 40px;
    align-items: center;
}
.frass-visual {
    background: var(--paper-alt);
    border-radius: 4px;
    overflow: hidden;
    height: 320px;
}
.frass-visual img { width: 100%; height: 100%; object-fit: contain; display: block; }

/* ========== MODAL: FICHA DE PRODUCTO ========== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(20, 28, 23, 0.72);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.18s ease;
}
.modal-overlay.open { opacity: 1; visibility: visible; }
.modal-box {
    background: var(--white);
    border-radius: 4px;
    width: 100%;
    max-width: 620px;
    max-height: 86vh;
    overflow-y: auto;
    padding: 44px;
    position: relative;
    transform: translateY(14px);
    transition: transform 0.18s ease;
}
.modal-overlay.open .modal-box { transform: translateY(0); }
.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--line);
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: 1rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}
.modal-close:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.modal-visual {
    height: 260px;
    border-radius: 3px;
    margin-bottom: 20px;
    background: var(--paper-alt);
    overflow: hidden;
}
.modal-visual img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}
#modalBody {
    border-top: 1px solid var(--line);
    padding-top: 22px;
    margin-top: 4px;
}
body.modal-open { overflow: hidden; }

/* ========== FOOTER ========== */
footer {
    background: var(--ink);
    color: rgba(238, 231, 216, 0.7);
    padding: 50px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
}
.footer-grid .logo { color: var(--paper); font-size: 1.6rem; }
.footer-grid .logo span { color: var(--tech-green); }
.footer-grid h4 {
    color: var(--paper);
    font-family: var(--font-mono);
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.footer-grid a {
    color: rgba(238, 231, 216, 0.6);
    text-decoration: none;
    display: block;
    margin-bottom: 8px;
    font-size: 0.92rem;
}
.footer-grid a:hover { color: var(--gold); }
.footer-bottom {
    border-top: 1px solid var(--line-on-ink);
    padding: 20px 0;
    display: flex;
    justify-content: space-between;
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
    .hero-grid, .origen-grid, .industria-grid, .nutri-block, .big-ideas-grid, .etica-grid, .objetivos-grid, .frass-layout {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    .frass-visual { height: 240px; }
    .nutri-block { padding: 30px; }
    .sust-block { padding: 30px; }
    .faq-block { padding: 30px; }
    .catalogo-grid { grid-template-columns: 1fr; }
    .values-grid { grid-template-columns: 1fr; }
    .industria-features { grid-template-columns: 1fr; }
    .sust-grid { grid-template-columns: 1fr; }
    .product-details-grid { grid-template-columns: 1fr; }
    .product-details-grid > div:nth-child(odd) { border-right: none; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .nav-links { display: none; }
    .nav-links.open {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background: var(--paper);
        padding: 24px;
        gap: 18px;
        border-bottom: 1px solid var(--line);
    }
    .hamburger { display: block; }
    .section { padding: 70px 0; }
}

@media (max-width: 640px) {
    .hero-visual { height: 220px; }
    .hero-visual .inner-text strong { font-size: 2rem; }
    .product-card { padding: 26px; }
    .sust-block { padding: 22px; }
    .faq-block { padding: 22px; }
    .origen-side { padding: 28px; }
    .footer-bottom { flex-direction: column; gap: 8px; text-align: left; }
}