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

:root {
    --green:        #4caf50;
    --green-dark:   #388e3c;
    --green-light:  #7dc241;
    --green-pale:   #e8f5e9;
    --white:        #ffffff;
    --gray-100:     #f5f5f5;
    --gray-200:     #e0e0e0;
    --gray-500:     #757575;
    --gray-800:     #212121;
    --text:         #1a1a1a;
    --radius:       8px;
    --shadow:       0 2px 12px rgba(0,0,0,.1);
    --transition:   .2s ease;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', Arial, sans-serif; color: var(--text); background: var(--white); line-height: 1.6; font-size: 16px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }

/* ===== NAVBAR ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    box-shadow: 0 1px 6px rgba(0,0,0,.06);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 12px;
}

/* Logo */
.logo-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
    text-decoration: none;
}
.logo-img { height: 84px; width: auto; display: block; mix-blend-mode: multiply; }

/* Nav links */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2px;
    flex: 1;
    justify-content: center;
}

.nav-links > li > a {
    padding: 7px 13px;
    border-radius: 6px;
    font-weight: 500;
    font-size: .9rem;
    color: var(--gray-800);
    transition: background var(--transition), color var(--transition);
    white-space: nowrap;
}
.nav-links > li > a:hover,
.nav-links > li > a.active { background: var(--green-pale); color: var(--green-dark); }
.nav-ig > a:hover { background: transparent; }

.btn-nav {
    background: var(--green) !important;
    color: var(--white) !important;
    padding: 9px 22px !important;
    border-radius: 50px !important;
    font-weight: 600 !important;
    margin-left: 10px !important;
}
.btn-nav:hover { background: var(--green-dark) !important; }

/* Dropdown */
.dropdown { position: relative; }
.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 210px;
    padding: 6px 0;
}
.dropdown-menu li a { display: block; padding: 9px 16px; font-size: .88rem; color: var(--gray-800); transition: background var(--transition); }
.dropdown-menu li a:hover { background: var(--green-pale); color: var(--green-dark); }
.dropdown:hover .dropdown-menu, .dropdown.open .dropdown-menu { display: block; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--gray-800); border-radius: 2px; }

/* ===== HERO WRAPPER — hero + ahorro comparten el mismo fondo ===== */
.hero-wrapper {
    background-image: url('/img/hero-bg.webp');
    background-size: cover;
    background-position: center;
}

/* ===== HERO ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    color: var(--white);
    overflow: hidden;
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.62);
}
.hero-body {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 80px 24px 48px;
    max-width: 900px;
    margin: 0 auto;
}
.hero h1 {
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    font-weight: 900;
    letter-spacing: 1px;
    color: var(--green-light);
    text-transform: uppercase;
    margin-bottom: 32px;
    line-height: 1.1;
    text-shadow: 0 2px 8px rgba(0,0,0,.4);
}
.hero-icons-wrap {
    display: block;
    margin: 0 auto 4px;
    max-width: 340px;
}
.hero-icons-wrap img {
    width: 100%;
    height: auto;
    display: block;
    max-height: 100px;
    object-fit: contain;
    object-position: top;
}
.hero-subtitle {
    font-size: 1.15rem;
    font-weight: 500;
    opacity: .9;
    margin-bottom: 32px;
    letter-spacing: .5px;
}
.hero-cta {
    display: inline-block;
    background: var(--green);
    color: var(--white);
    font-weight: 700;
    font-size: 1rem;
    padding: 16px 44px;
    border-radius: 50px;
    letter-spacing: .5px;
    transition: background var(--transition);
    text-transform: uppercase;
}
.hero-cta:hover { background: var(--green-dark); color: var(--white); }

/* ===== AHORRO SECTION (comparte fondo con hero via .hero-wrapper) ===== */
.ahorro-section {
    position: relative;
    color: var(--white);
    padding: 64px 24px;
    text-align: center;
}
.ahorro-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,.72);
}
.ahorro-section > .container { position: relative; z-index: 1; }
.ahorro-title {
    font-size: clamp(1.3rem, 3vw, 2rem);
    font-weight: 800;
    color: var(--green-light);
    text-transform: uppercase;
    margin-bottom: 40px;
    letter-spacing: .5px;
}
.ahorro-circles {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 32px;
}
.ahorro-circle {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 3px solid var(--green-light);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 16px;
    text-align: center;
    background: rgba(0,0,0,.25);
}
.ahorro-circle p { font-size: .85rem; font-weight: 600; line-height: 1.35; }
.ahorro-circle .num { font-size: 1.3rem; font-weight: 800; color: var(--green-light); display: block; margin-bottom: 4px; }

/* ===== SECTION UTILITY ===== */
section { padding: 72px 0; }
.section-header { text-align: center; margin-bottom: 48px; }
.section-title {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    font-weight: 800;
    letter-spacing: -.3px;
}
.section-tag {
    display: inline-block;
    color: var(--green-dark);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 8px;
}
.section-subtitle { font-size: 1rem; color: var(--gray-500); margin-top: 8px; }
.bg-gray { background: var(--gray-100); }
.bg-green { background: var(--green); }
.text-center { text-align: center; }

/* ===== SABIAS QUE — 3 COLS ===== */
.sabias-title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    font-weight: 900;
    margin-bottom: 48px;
    color: var(--gray-800);
}

.three-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 36px;
}
.info-col img {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 20px;
}
.info-col h3 {
    font-size: 1rem;
    font-weight: 800;
    color: var(--green-dark);
    text-transform: uppercase;
    margin-bottom: 12px;
    letter-spacing: .5px;
}
.info-col p { font-size: .93rem; color: var(--gray-800); line-height: 1.7; }
.info-col .source { font-size: .78rem; color: var(--gray-500); margin-top: 10px; }
.info-col a { color: var(--green-dark); text-decoration: underline; }

/* ===== VIDEO ===== */
.video-section { background: var(--gray-100); padding: 64px 0; }
.video-wrap {
    max-width: 760px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
}
.video-wrap iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}

/* ===== SOLUCIONES ECOLÓGICAS ===== */
.soluciones-section {
    position: relative;
    padding: 72px 0;
    overflow: hidden;
}
.soluciones-bg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: .18;
    pointer-events: none;
}
.soluciones-section > .container { position: relative; z-index: 1; }
.soluciones-section .section-title { color: var(--green-dark); margin-bottom: 32px; }

.sol-list { display: flex; flex-direction: column; gap: 20px; max-width: 680px; }
.sol-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
}
.sol-dot {
    flex-shrink: 0;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--green);
    margin-top: 5px;
}
.sol-item p { font-size: .97rem; color: var(--gray-800); line-height: 1.65; }

/* ===== CLIENTS ===== */
.clients-banner {
    background: var(--green);
    color: var(--white);
    text-align: center;
    padding: 20px 24px;
    font-size: 1.2rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.clients-logos {
    background: var(--white);
    padding: 40px 24px;
}
.clients-logos-row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
    align-items: center;
    max-width: 900px;
    margin: 0 auto;
}
.client-logo {
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    transition: border-color var(--transition);
    min-width: 120px;
}
.client-logo:hover { border-color: var(--green); }
.client-logo img { max-height: 48px; max-width: 130px; width: auto; object-fit: contain; filter: grayscale(20%); transition: filter var(--transition); }
.client-logo:hover img { filter: grayscale(0%); }

/* ===== TESTIMONIALS ===== */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-top: 40px;
}
.testimonial-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 28px;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--green);
}
.stars { color: #f5a623; font-size: .95rem; margin-bottom: 12px; letter-spacing: 2px; }
.testimonial-text { font-size: .93rem; color: var(--gray-800); line-height: 1.7; font-style: italic; margin-bottom: 18px; }
.testimonial-author strong { display: block; font-size: .93rem; font-weight: 700; }
.testimonial-author span { font-size: .83rem; color: var(--gray-500); }

/* ===== INSTAGRAM ===== */
.instagram-section { background: var(--green-pale); padding: 48px 24px; text-align: center; }
.instagram-section p { color: var(--green-dark); font-size: 1.05rem; margin-bottom: 14px; }
.ig-handle {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--green-dark);
}

/* ===== CTA BANNER ===== */
.cta-banner {
    background: var(--green-dark);
    color: var(--white);
    text-align: center;
    padding: 64px 24px;
}
.cta-banner h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; margin-bottom: 12px; }
.cta-banner p { opacity: .85; margin-bottom: 28px; font-size: 1rem; }
.btn-primary {
    display: inline-block;
    background: var(--green);
    color: var(--white);
    font-weight: 700;
    padding: 13px 36px;
    border-radius: 50px;
    transition: background var(--transition);
    font-size: .97rem;
}
.btn-primary:hover { background: var(--green-light); color: var(--white); }
.btn-outline {
    display: inline-block;
    border: 2px solid var(--white);
    color: var(--white);
    font-weight: 600;
    padding: 11px 32px;
    border-radius: 50px;
    transition: background var(--transition);
    font-size: .97rem;
}
.btn-outline:hover { background: rgba(255,255,255,.15); color: var(--white); }

/* ===== PAGE HERO ===== */
.page-hero {
    background: var(--green-dark);
    color: var(--white);
    padding: 60px 24px;
    text-align: center;
}
.page-hero h1 { font-size: clamp(1.6rem, 3.5vw, 2.6rem); font-weight: 800; margin-bottom: 8px; color: var(--white); text-transform: uppercase; letter-spacing: 1px; }
.page-hero p { opacity: .75; font-size: 1rem; max-width: 520px; margin: 0 auto; }

/* ===== CATALOGO ===== */
.product-row {
    display: grid;
    grid-template-columns: 400px 1fr;
    gap: 56px;
    align-items: start;
}
.product-photo {
    background: var(--gray-100);
    border-radius: var(--radius);
    overflow: hidden;
    height: 420px;
}
.product-photo img { width: 100%; height: 100%; object-fit: cover; object-position: center; }
.product-name { font-size: 1.8rem; font-weight: 800; margin-bottom: 20px; }
.product-name span { color: var(--green-dark); }
.product-desc p { font-size: .95rem; color: var(--gray-800); line-height: 1.7; margin-bottom: 14px; }
.product-desc strong { color: var(--green-dark); }
.btn-ficha {
    display: inline-block;
    background: var(--green);
    color: var(--white);
    font-weight: 700;
    padding: 13px 28px;
    border-radius: 50px;
    margin-top: 12px;
    transition: background var(--transition);
    font-size: .95rem;
}
.btn-ficha:hover { background: var(--green-dark); color: var(--white); }

/* ===== PROCESO ===== */
.proceso-intro { font-size: 1.6rem; font-weight: 800; color: var(--green-dark); margin-bottom: 32px; }
.proceso-diagram { background: var(--white); border: 1px solid var(--gray-200); border-radius: 12px; padding: 32px; margin-top: 8px; }
.proceso-diagram img { max-width: 100%; height: auto; }

/* Step cards — minimal */
.steps-minimal {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    overflow: hidden;
    margin-top: 40px;
    background: var(--white);
}
.step-min {
    padding: 28px 22px;
    border-right: 1px solid var(--gray-200);
}
.step-min:last-child { border-right: none; }
.step-min .step-num { font-size: 2rem; font-weight: 900; color: var(--green-pale); line-height: 1; margin-bottom: 10px; }
.step-min h3 { font-size: .9rem; font-weight: 700; color: var(--green-dark); margin-bottom: 6px; }
.step-min p { font-size: .82rem; color: var(--gray-500); line-height: 1.55; }

/* ===== CONTACTO ===== */
.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 56px;
    align-items: start;
}
.contact-left h2 { font-size: 2rem; font-weight: 800; color: var(--green-dark); margin-bottom: 6px; }
.contact-left .contact-name { font-size: 1.3rem; font-weight: 700; color: var(--green); margin-bottom: 28px; }
.contact-btn {
    display: inline-block;
    background: var(--green);
    color: var(--white);
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 50px;
    text-align: center;
    margin-bottom: 12px;
    margin-right: 8px;
    font-size: .95rem;
    transition: background var(--transition);
}
.contact-btn:hover { background: var(--green-dark); color: var(--white); }
.contact-right { display: flex; flex-direction: column; gap: 24px; }
.regiones-img { border-radius: var(--radius); overflow: hidden; }
.regiones-img img { width: 100%; height: auto; display: block; }
.map-embed { border-radius: var(--radius); overflow: hidden; }
.map-embed iframe { width: 100%; height: 260px; border: none; display: block; }

/* ===== FOOTER LOGO ===== */
.footer-logo-icon {
    width: 44px; height: 44px;
    border-radius: 50%;
    border: 2px solid var(--green);
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.logo-text-wrap { display: flex; flex-direction: column; line-height: 1.2; }
.logo-name { font-size: 1.3rem; font-weight: 800; color: var(--green-dark); letter-spacing: 1px; }
.logo-tagline { font-size: .6rem; color: var(--gray-500); font-weight: 500; letter-spacing: .5px; }

/* ===== WHATSAPP FLOAT ===== */
.whatsapp-float {
    position: fixed;
    width: 60px; height: 60px;
    bottom: 30px; right: 30px;
    background-color: #25d366;
    color: #fff;
    border-radius: 50%;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,.3);
    z-index: 1100;
    display: flex; align-items: center; justify-content: center;
    transition: all .3s ease;
    animation: pulse-wa 2s infinite;
}
.whatsapp-icon { width: 35px; height: 35px; }
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 6px 14px rgba(0,0,0,.4); background-color: #20b858; }
@keyframes pulse-wa {
    0%   { box-shadow: 0 0 0 0 rgba(37,211,102,.6); }
    70%  { box-shadow: 0 0 0 15px rgba(37,211,102,0); }
    100% { box-shadow: 0 0 0 0 rgba(37,211,102,0); }
}
@media (max-width: 768px) {
    .whatsapp-float { width: 50px; height: 50px; bottom: 20px; right: 20px; }
    .whatsapp-icon  { width: 28px; height: 28px; }
}

/* ===== FOOTER ===== */
.site-footer { background: var(--gray-800); color: var(--white); }
.footer-inner {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
    padding: 56px 24px 40px;
    max-width: 1140px;
    margin: 0 auto;
}
.footer-brand p { color: rgba(255,255,255,.5); font-size: .88rem; line-height: 1.6; margin-top: 10px; }
.site-footer h4 { font-size: .78rem; font-weight: 700; letter-spacing: 1.5px; text-transform: uppercase; color: rgba(255,255,255,.4); margin-bottom: 14px; }
.footer-nav ul { display: flex; flex-direction: column; gap: 9px; }
.footer-nav a { color: rgba(255,255,255,.65); font-size: .9rem; transition: color var(--transition); }
.footer-nav a:hover { color: var(--white); }
.footer-contact p { color: rgba(255,255,255,.65); font-size: .9rem; margin-bottom: 6px; }
.footer-contact a { color: rgba(255,255,255,.65); transition: color var(--transition); }
.footer-contact a:hover { color: var(--green-light); }
.footer-social a { display: flex; align-items: center; gap: 8px; color: rgba(255,255,255,.65); font-size: .9rem; transition: color var(--transition); }
.footer-social a:hover { color: var(--green-light); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.08); padding: 18px 24px; text-align: center; font-size: .82rem; color: rgba(255,255,255,.3); max-width: 1140px; margin: 0 auto; }

/* ===== STATS STRIP (catálogo) ===== */
.stats-strip {
    display: flex;
    align-items: stretch;
    max-width: 860px;
    margin: 32px auto 0;
    border: 1px solid var(--gray-200);
    border-radius: 12px;
    background: var(--white);
    overflow: hidden;
}
.stat-item {
    flex: 1;
    text-align: center;
    padding: 22px 14px;
}
.stat-item + .stat-item { border-left: 1px solid var(--gray-200); }
.stat-val {
    display: block;
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--green);
    margin-bottom: 5px;
    line-height: 1;
}
.stat-label { font-size: .8rem; color: var(--gray-500); line-height: 1.4; }

/* ===== NOSOTROS ===== */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.two-col.reverse { direction: rtl; }
.two-col.reverse > * { direction: ltr; }
.two-col-text h2 { font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 800; margin-bottom: 16px; }
.two-col-text p { color: var(--gray-500); margin-bottom: 14px; line-height: 1.7; font-size: .97rem; }
.two-col-image { border-radius: 12px; overflow: hidden; background: var(--gray-100); min-height: 300px; display: flex; align-items: center; justify-content: center; }
.two-col-image img { width: 100%; height: 100%; object-fit: cover; }
.img-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 300px; gap: 10px; color: var(--green); opacity: .35; font-size: .82rem; }
.img-placeholder span { font-size: 3rem; }
.check-list { margin-top: 12px; display: flex; flex-direction: column; gap: 9px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: .93rem; }
.check-list li::before { content: "✓"; flex-shrink: 0; color: var(--green); font-weight: 700; margin-top: 1px; }
.impact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 40px; }
.impact-card { background: var(--white); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); border-top: 3px solid var(--green); }
.impact-card .icon { font-size: 2rem; margin-bottom: 12px; }
.impact-card h3 { font-size: 1rem; font-weight: 700; color: var(--green-dark); margin-bottom: 8px; }
.impact-card p { font-size: .88rem; color: var(--gray-500); line-height: 1.6; }

/* Triple impacto layout */
.triple-heading {
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    font-weight: 900;
    color: var(--green-dark);
    line-height: 1.2;
    margin-bottom: 10px;
}
.triple-layout {
    display: grid;
    grid-template-columns: 1fr 200px 1fr;
    gap: 48px;
    align-items: center;
    margin-bottom: 48px;
}
.triple-col-title {
    font-size: .75rem;
    font-weight: 800;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--green-dark);
    margin-bottom: 12px;
}
.triple-col-item p,
.triple-bottom-item p { font-size: .93rem; color: var(--gray-500); line-height: 1.7; }
.triple-bottom-item { text-align: center; max-width: 560px; margin: 0 auto; }
.triple-diagram {
    width: 200px;
    height: 200px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}
.tdiag-ring {
    width: 160px;
    height: 160px;
    border-radius: 50%;
    border: 2px dashed rgba(76,175,80,.35);
    position: absolute;
}
.tdiag-center {
    width: 64px;
    height: 64px;
    background: var(--green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
}
.tdiag-center svg { display: block; }
.tdiag-node {
    position: absolute;
    width: 38px;
    height: 38px;
    background: var(--green-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: .55rem;
    font-weight: 800;
    color: var(--white);
    text-align: center;
    line-height: 1.2;
    letter-spacing: .3px;
}
.tdiag-social { top: 6px; left: 50%; transform: translateX(-50%); }
.tdiag-eco    { bottom: 6px; left: 6px; }
.tdiag-amb    { bottom: 6px; right: 6px; }

/* ===== FAQ ===== */
.faq-list { max-width: 740px; margin: 40px auto 0; }
.faq-item { border-bottom: 1px solid var(--gray-200); }
.faq-question { width: 100%; background: none; border: none; text-align: left; padding: 20px 0; font-size: .97rem; font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; color: var(--text); gap: 12px; }
.faq-icon { flex-shrink: 0; width: 26px; height: 26px; border-radius: 50%; background: var(--green-pale); color: var(--green); display: flex; align-items: center; justify-content: center; font-size: 1.1rem; font-weight: 700; transition: background var(--transition), transform var(--transition); }
.faq-item.open .faq-icon { background: var(--green); color: var(--white); transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease, padding .35s ease; }
.faq-item.open .faq-answer { max-height: 280px; padding-bottom: 18px; }
.faq-answer p { color: var(--gray-500); line-height: 1.7; font-size: .93rem; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    .steps-minimal { grid-template-columns: repeat(2, 1fr); }
    .steps-minimal .step-min:nth-child(2) { border-right: none; }
    .steps-minimal .step-min:nth-child(1),
    .steps-minimal .step-min:nth-child(2) { border-bottom: 1px solid var(--gray-200); }
    .footer-inner { grid-template-columns: 1fr 1fr; gap: 28px; }
    .three-cols { grid-template-columns: 1fr; gap: 40px; }
    .three-cols .info-col img { height: 280px; }
    .contact-layout { grid-template-columns: 1fr; gap: 36px; }
    .product-row { grid-template-columns: 1fr; }
    .product-photo { min-height: 260px; }
    .two-col { grid-template-columns: 1fr; gap: 32px; }
    .two-col.reverse { direction: ltr; }
    .impact-grid { grid-template-columns: 1fr; }
    .triple-layout { grid-template-columns: 1fr; gap: 32px; }
    .triple-diagram { margin: 0 auto; }
}

@media (max-width: 640px) {
    .stats-strip { flex-direction: column; }
    .stat-item + .stat-item { border-left: none; border-top: 1px solid var(--gray-200); }
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .nav-links {
        display: none;
        position: absolute;
        top: 72px;
        left: 0; right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 12px 20px 20px;
        border-bottom: 2px solid var(--green-pale);
        box-shadow: 0 6px 20px rgba(0,0,0,.08);
        gap: 2px;
        align-items: flex-start;
        justify-content: flex-start;
    }
    .nav-links.open { display: flex; }
    .nav-links > li { width: 100%; }
    .nav-links > li > a { display: block; }
    .dropdown-menu { position: static; box-shadow: none; border: none; background: var(--gray-100); margin: 4px 0; border-radius: 6px; }
    .footer-inner { grid-template-columns: 1fr; gap: 24px; padding: 36px 20px; }
    section { padding: 52px 0; }
    .ahorro-circles { gap: 20px; }
    .ahorro-circle { width: 130px; height: 130px; }
}