:root {
  --primary: #2563EB;
  --primary-dark: #1D4ED8;
  --accent: #10B981;
  --bg: #060d1a;
  --bg-2: #0d1b35;
  --bg-3: #0a1628;
  --card-bg: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --card-border-hover: rgba(37,99,235,0.5);
  --text: #E2E8F0;
  --text-muted: #94A3B8;
  --white: #FFFFFF;
  --shadow-md: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.5);
  --radius: 14px;
  --radius-lg: 22px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; color: var(--text); background: var(--bg); line-height: 1.6; font-size: 16px; position: relative; }
nav, section, footer { position: relative; z-index: 1; }
/* Fondos con transparencia para que la red neuronal se vea */
.hero, .servicios, .testimonios, .resena-section { background: rgba(6,13,26,0.55) !important; }
.trust-section, .como-funciona, .faq-section { background: rgba(10,22,40,0.7) !important; }
.precios { background: rgba(6,13,26,0.6) !important; }
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
img { max-width: 100%; }
a { text-decoration: none; }

/* BOTONES */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 4px 18px rgba(37,99,235,0.4);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 6px 24px rgba(37,99,235,0.55); }
.btn-outline { display: inline-block; background: transparent; color: #fff; padding: 0.8rem 1.8rem; border-radius: 50px; font-weight: 700; font-size: 0.95rem; border: 2px solid rgba(255,255,255,0.35); cursor: pointer; transition: all 0.2s; }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); background: rgba(37,99,235,0.08); transform: translateY(-2px); }
.btn-large { padding: 1rem 2.2rem; font-size: 1.05rem; }
.btn-wa-large { display: inline-block; background: #25D366; color: #fff; padding: 1rem 2.2rem; border-radius: 50px; font-weight: 700; font-size: 1.05rem; transition: all 0.2s; box-shadow: 0 4px 18px rgba(37,211,102,0.4); }
.btn-wa-large:hover { background: #1ebe5d; transform: translateY(-2px); }

/* NAVBAR */
.navbar { position: sticky; top: 0; z-index: 200; background: rgba(6,13,26,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid rgba(255,255,255,0.07); }
.nav-container { max-width: 1160px; margin: 0 auto; padding: 0 24px; height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.logo-brand { display: flex; align-items: center; gap: 0.75rem; }
.logo-img { height: 54px; }
.logo-text { font-weight: 800; font-size: 1.05rem; background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: -0.01em; }
.nav-links { display: flex; list-style: none; gap: 2rem; }
.nav-links a { color: rgba(255,255,255,0.6); font-weight: 500; font-size: 0.9rem; transition: color 0.2s; }
.nav-links a:hover { color: #fff; }
.btn-nav { background: var(--primary); color: #fff; padding: 0.55rem 1.3rem; border-radius: 50px; font-weight: 700; font-size: 0.88rem; transition: all 0.2s; white-space: nowrap; box-shadow: 0 2px 12px rgba(37,99,235,0.4); }
.btn-nav:hover { background: var(--primary-dark); }

/* HERO */
.hero { padding: 110px 0 90px; background: var(--bg); overflow: hidden; position: relative; }
.hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.hero-badge { display: inline-block; background: rgba(37,99,235,0.15); color: #93C5FD; padding: 0.4rem 1rem; border-radius: 50px; font-size: 0.82rem; font-weight: 600; margin-bottom: 1.4rem; border: 1px solid rgba(37,99,235,0.3); }
.hero-content h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); font-weight: 900; line-height: 1.15; color: #fff; margin-bottom: 1.2rem; }
.gradient-text { background: linear-gradient(135deg, #60A5FA 0%, #A78BFA 60%, #34D399 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.1rem; color: var(--text-muted); margin-bottom: 2rem; max-width: 480px; }
.hero-btns { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.hero-stats { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; }
.stat-item { text-align: center; }
.stat-item strong { display: block; font-size: 1.5rem; font-weight: 800; color: #60A5FA; }
.stat-item span { font-size: 0.78rem; color: var(--text-muted); font-weight: 500; }
.stat-divider { width: 1px; height: 36px; background: rgba(255,255,255,0.1); }

/* HERO VISUAL */
.hero-visual { position: relative; height: 420px; display: flex; align-items: center; justify-content: center; }
.hero-circle-bg { width: 340px; height: 340px; border-radius: 50%; background: radial-gradient(circle, rgba(37,99,235,0.12) 0%, rgba(124,58,237,0.06) 70%, transparent 100%); border: 1px solid rgba(37,99,235,0.2); position: absolute; }
.hero-card { position: absolute; background: rgba(255,255,255,0.06); backdrop-filter: blur(12px); border-radius: var(--radius); padding: 1rem 1.3rem; display: flex; align-items: center; gap: 0.8rem; box-shadow: 0 8px 32px rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); }
.hero-card strong { display: block; font-size: 0.88rem; font-weight: 700; color: #fff; }
.hero-card span { font-size: 0.78rem; color: var(--accent); font-weight: 600; }
.hcard-icon { font-size: 1.6rem; }
.card-1 { top: 30px; left: -20px; animation: float 3s ease-in-out infinite; }
.card-2 { top: 50%; right: -30px; animation: float2 3s ease-in-out 1s infinite; }
.card-3 { bottom: 40px; left: 20px; animation: float 3s ease-in-out 2s infinite; }
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-10px)} }
@keyframes float2 { 0%,100%{transform:translateY(-50%)} 50%{transform:translateY(calc(-50% - 10px))} }

/* TRUST */
.trust-section { padding: 32px 0; border-top: 1px solid rgba(255,255,255,0.06); border-bottom: 1px solid rgba(255,255,255,0.06); background: var(--bg-2); }
.trust-label { text-align: center; font-size: 0.78rem; font-weight: 600; color: rgba(255,255,255,0.35); text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 1.2rem; }
.trust-logos { display: flex; justify-content: center; align-items: center; gap: 1rem; flex-wrap: wrap; }
.trust-logo { font-size: 0.85rem; font-weight: 600; color: rgba(255,255,255,0.5); background: rgba(255,255,255,0.05); padding: 0.5rem 1.1rem; border-radius: 50px; border: 1px solid rgba(255,255,255,0.08); transition: all 0.2s; }
.trust-logo:hover { background: rgba(37,99,235,0.15); color: #93C5FD; border-color: rgba(37,99,235,0.3); }

/* IMPACT */
.impact-section { padding: 80px 0; background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 50%, #4C1D95 100%); }
.impact-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem; text-align: center; }
.impact-number { font-size: clamp(2.5rem, 5vw, 3.5rem); font-weight: 900; color: #fff; line-height: 1; margin-bottom: 0.6rem; }
.impact-label { font-size: 0.88rem; color: rgba(255,255,255,0.7); font-weight: 500; }

/* SECTION HEADER */
.section-header { text-align: center; margin-bottom: 3.5rem; }
.section-badge { display: inline-block; background: rgba(37,99,235,0.15); color: #93C5FD; padding: 0.3rem 0.9rem; border-radius: 50px; font-size: 0.78rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 1rem; border: 1px solid rgba(37,99,235,0.3); }
.section-header h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 800; color: #fff; margin-bottom: 0.7rem; }
.section-header p { font-size: 1rem; color: var(--text-muted); }

/* CÓMO FUNCIONA */
.como-funciona { padding: 90px 0; background: var(--bg-3); }
.steps-grid { display: flex; align-items: center; justify-content: center; gap: 1rem; }
.step-card { background: var(--card-bg); border-radius: var(--radius-lg); padding: 2.5rem 2rem; flex: 1; max-width: 300px; border: 1px solid var(--card-border); box-shadow: var(--shadow-md); transition: transform 0.2s, border-color 0.2s; backdrop-filter: blur(8px); }
.step-card:hover { transform: translateY(-4px); border-color: var(--card-border-hover); }
.step-num { font-size: 2.5rem; font-weight: 900; color: rgba(37,99,235,0.25); line-height: 1; margin-bottom: 0.5rem; }
.step-icon { font-size: 2rem; margin-bottom: 1rem; }
.step-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.6rem; color: #fff; }
.step-card p { font-size: 0.9rem; color: var(--text-muted); }
.step-arrow { font-size: 1.8rem; color: rgba(255,255,255,0.15); flex-shrink: 0; }

/* SERVICIOS */
.servicios { padding: 90px 0; background: var(--bg); }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.service-card { background: var(--card-bg); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--card-border); transition: all 0.25s; position: relative; display: flex; flex-direction: column; gap: 0.6rem; backdrop-filter: blur(8px); }
.service-card:hover { border-color: var(--card-border-hover); box-shadow: 0 0 30px rgba(37,99,235,0.12); transform: translateY(-4px); }
.service-card.featured { border-color: rgba(37,99,235,0.4); background: rgba(37,99,235,0.08); box-shadow: 0 0 40px rgba(37,99,235,0.15); }
.featured-badge { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 0.3rem 1rem; border-radius: 50px; font-size: 0.78rem; font-weight: 700; white-space: nowrap; }
.service-icon { font-size: 2rem; margin-bottom: 0.2rem; }
.service-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; }
.service-card > p { font-size: 0.88rem; color: var(--text-muted); }
.service-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.3rem; flex: 1; }
.service-card ul li { font-size: 0.85rem; color: var(--text-muted); padding-left: 1.1rem; position: relative; }
.service-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }
.service-price { font-size: 0.88rem; color: var(--text-muted); margin-top: 0.5rem; }
.service-price strong { font-size: 1.3rem; font-weight: 800; color: #60A5FA; }
.btn-service { display: inline-block; margin-top: 0.5rem; color: #60A5FA; font-weight: 700; font-size: 0.9rem; border: 1.5px solid rgba(37,99,235,0.4); padding: 0.6rem 1.2rem; border-radius: 50px; text-align: center; transition: all 0.2s; }
.btn-service:hover, .btn-service.featured { background: var(--primary); color: #fff; border-color: var(--primary); }

/* PRECIOS */
.precios { padding: 90px 0; background: var(--bg-2); }
.pricing-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; align-items: start; }
.price-card { background: var(--card-bg); border-radius: var(--radius-lg); padding: 2rem 1.8rem; border: 1px solid var(--card-border); display: flex; flex-direction: column; gap: 0.8rem; transition: all 0.2s; position: relative; backdrop-filter: blur(8px); }
.price-card:hover { border-color: var(--card-border-hover); transform: translateY(-4px); box-shadow: 0 0 30px rgba(37,99,235,0.12); }
.price-card.featured { border-color: rgba(37,99,235,0.4); background: rgba(37,99,235,0.08); box-shadow: 0 0 40px rgba(37,99,235,0.15); }
.featured-tag { position: absolute; top: -12px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; padding: 0.3rem 1rem; border-radius: 50px; font-size: 0.78rem; font-weight: 700; white-space: nowrap; }
.price-icon { font-size: 2rem; }
.price-card h3 { font-size: 1.1rem; font-weight: 700; color: #fff; }
.price-amount { font-size: 0.9rem; color: var(--text-muted); }
.price-amount strong { font-size: 2rem; font-weight: 900; color: #60A5FA; }
.price-unit { font-size: 0.85rem; }
.price-card ul { list-style: none; display: flex; flex-direction: column; gap: 0.5rem; flex: 1; margin-bottom: 0.5rem; }
.price-card ul li { font-size: 0.88rem; color: var(--text-muted); padding-left: 1.3rem; position: relative; }
.price-card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--accent); font-weight: 700; }

/* TESTIMONIOS */
.testimonios { padding: 90px 0; background: var(--bg); }
.testimonios-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.testimonio-card { background: var(--card-bg); border-radius: var(--radius-lg); padding: 2rem; border: 1px solid var(--card-border); display: flex; flex-direction: column; gap: 1rem; transition: all 0.2s; backdrop-filter: blur(8px); }
.testimonio-card:hover { border-color: var(--card-border-hover); box-shadow: 0 0 30px rgba(37,99,235,0.12); transform: translateY(-4px); }
.stars { font-size: 1.1rem; color: #FBBF24; letter-spacing: 2px; }
.testimonio-card p { font-size: 0.92rem; color: var(--text-muted); line-height: 1.7; flex: 1; font-style: italic; }
.testimonio-autor { display: flex; align-items: center; gap: 0.8rem; }
.autor-avatar { width: 44px; height: 44px; border-radius: 50%; background: linear-gradient(135deg, var(--primary) 0%, #7C3AED 100%); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 0.85rem; flex-shrink: 0; }
.testimonio-autor strong { display: block; font-size: 0.9rem; color: #fff; }
.testimonio-autor span { font-size: 0.78rem; color: var(--text-muted); }

/* FAQ */
.faq-section { padding: 90px 0; background: var(--bg-2); }
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 0.75rem; }
.faq-item { background: var(--card-bg); border-radius: var(--radius); border: 1px solid var(--card-border); overflow: hidden; transition: border-color 0.2s; }
.faq-item.open { border-color: rgba(37,99,235,0.4); }
.faq-question { width: 100%; padding: 1.2rem 1.5rem; background: none; border: none; text-align: left; cursor: pointer; font-size: 0.98rem; font-weight: 600; color: #fff; display: flex; justify-content: space-between; align-items: center; gap: 1rem; font-family: inherit; transition: color 0.2s; }
.faq-question:hover { color: #93C5FD; }
.faq-icon { font-size: 1.3rem; font-weight: 400; color: #60A5FA; flex-shrink: 0; }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p { padding: 0 1.5rem 1.2rem; font-size: 0.9rem; color: var(--text-muted); line-height: 1.7; }

/* RESEÑA */
.resena-section { padding: 90px 0; background: var(--bg); }
.resena-form-wrap { max-width: 600px; margin: 0 auto; background: var(--card-bg); border-radius: var(--radius-lg); padding: 2.5rem; border: 1px solid var(--card-border); backdrop-filter: blur(8px); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; margin-bottom: 1rem; }
.form-group label { font-size: 0.85rem; font-weight: 600; color: rgba(255,255,255,0.7); }
.form-group input, .form-group textarea { padding: 0.75rem 1rem; border: 1.5px solid rgba(255,255,255,0.1); border-radius: var(--radius); font-size: 0.9rem; font-family: inherit; background: rgba(255,255,255,0.05); color: #fff; transition: border-color 0.2s; outline: none; }
.form-group input::placeholder, .form-group textarea::placeholder { color: rgba(255,255,255,0.25); }
.form-group input:focus, .form-group textarea:focus { border-color: rgba(37,99,235,0.5); }
.star-selector { display: flex; gap: 0.4rem; }
.star { font-size: 1.8rem; cursor: pointer; color: rgba(255,255,255,0.15); transition: color 0.15s; }
.star.active, .star.hover { color: #FBBF24; }

/* CTA FINAL */
.cta-final { padding: 100px 0; background: linear-gradient(135deg, #1E3A8A 0%, #1E40AF 50%, #4C1D95 100%); text-align: center; position: relative; overflow: hidden; }
.cta-final::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at center, rgba(99,130,235,0.15) 0%, transparent 70%); pointer-events: none; }
.cta-final h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; color: #fff; margin-bottom: 0.8rem; }
.cta-final p { font-size: 1.05rem; color: rgba(255,255,255,0.75); margin-bottom: 2.5rem; }
.cta-btns { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.cta-final .btn-primary { background: #fff; color: var(--primary); box-shadow: 0 4px 20px rgba(0,0,0,0.2); }
.cta-final .btn-primary:hover { background: #EFF6FF; }
.cta-info { display: flex; justify-content: center; align-items: center; gap: 0.8rem; flex-wrap: wrap; font-size: 0.9rem; color: rgba(255,255,255,0.6); }
.cta-info a { color: rgba(255,255,255,0.85); font-weight: 500; }
.cta-info a:hover { color: #fff; }
.sep { opacity: 0.3; }

/* FOOTER */
footer { background: #030810; color: rgba(255,255,255,0.5); padding: 60px 0 28px; border-top: 1px solid rgba(255,255,255,0.06); }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 3rem; margin-bottom: 3rem; }
.footer-brand p { font-size: 0.88rem; line-height: 1.6; max-width: 260px; }
.footer-col { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col h4 { color: rgba(255,255,255,0.7); font-size: 0.88rem; font-weight: 700; margin-bottom: 0.4rem; text-transform: uppercase; letter-spacing: 0.06em; }
.footer-col a { color: rgba(255,255,255,0.4); font-size: 0.88rem; transition: color 0.2s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.06); padding-top: 1.5rem; text-align: center; font-size: 0.82rem; color: rgba(255,255,255,0.2); }

/* CHAT WIDGET */
.chat-widget { position: fixed; bottom: 90px; right: 24px; width: 360px; background: #0d1b35; border-radius: var(--radius-lg); box-shadow: 0 16px 64px rgba(0,0,0,0.6); display: none; flex-direction: column; z-index: 999; overflow: hidden; border: 1px solid rgba(255,255,255,0.08); }
.chat-widget.open { display: flex; }
.chat-header { background: linear-gradient(135deg, #1E40AF 0%, #7C3AED 100%); color: #fff; padding: 1rem 1.2rem; display: flex; align-items: center; gap: 0.75rem; }
.chat-avatar { width: 38px; height: 38px; background: rgba(255,255,255,0.2); border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; flex-shrink: 0; }
.chat-header strong { display: block; font-size: 0.92rem; }
.online { font-size: 0.75rem; color: #86EFAC; font-weight: 500; }
.chat-close { margin-left: auto; background: none; border: none; color: rgba(255,255,255,0.6); font-size: 1.1rem; cursor: pointer; padding: 0.2rem; transition: color 0.2s; }
.chat-close:hover { color: #fff; }
.chat-messages { flex: 1; padding: 1.2rem; overflow-y: auto; max-height: 320px; display: flex; flex-direction: column; gap: 0.75rem; background: #060d1a; }
.msg { max-width: 82%; padding: 0.7rem 1rem; border-radius: 16px; font-size: 0.88rem; line-height: 1.5; }
.msg.bot { background: rgba(255,255,255,0.07); color: var(--text); align-self: flex-start; border: 1px solid rgba(255,255,255,0.08); border-bottom-left-radius: 4px; }
.msg.user { background: var(--primary); color: #fff; align-self: flex-end; border-bottom-right-radius: 4px; }
.msg.typing { opacity: 0.6; }
.quick-btn { display: inline-block; margin: 0.25rem 0.25rem 0 0; padding: 0.35rem 0.8rem; border-radius: 50px; border: 1.5px solid rgba(37,99,235,0.4); background: none; color: #93C5FD; font-size: 0.8rem; font-weight: 600; cursor: pointer; transition: all 0.2s; }
.quick-btn:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.chat-input-area { display: flex; gap: 0.5rem; padding: 0.85rem 1rem; border-top: 1px solid rgba(255,255,255,0.07); background: #0d1b35; }
.chat-input-area input { flex: 1; padding: 0.6rem 1rem; border: 1.5px solid rgba(255,255,255,0.1); border-radius: 50px; font-size: 0.88rem; font-family: inherit; outline: none; background: rgba(255,255,255,0.05); color: #fff; transition: border-color 0.2s; }
.chat-input-area input::placeholder { color: rgba(255,255,255,0.3); }
.chat-input-area input:focus { border-color: rgba(37,99,235,0.5); }
.chat-input-area button { background: var(--primary); color: #fff; border: none; border-radius: 50%; width: 38px; height: 38px; font-size: 1rem; cursor: pointer; transition: background 0.2s; flex-shrink: 0; }
.chat-input-area button:hover { background: var(--primary-dark); }
.chat-toggle { position: fixed; bottom: 24px; right: 24px; background: linear-gradient(135deg, #1E40AF 0%, #7C3AED 100%); color: #fff; border: none; border-radius: 50px; padding: 0.8rem 1.4rem; font-size: 0.92rem; font-weight: 700; cursor: pointer; box-shadow: 0 6px 28px rgba(37,99,235,0.5); z-index: 998; display: flex; align-items: center; gap: 0.5rem; transition: transform 0.2s, box-shadow 0.2s; font-family: inherit; }
.chat-toggle:hover { transform: translateY(-2px); box-shadow: 0 8px 36px rgba(37,99,235,0.65); }

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; }
  .hero-visual { display: none; }
  .hero-btns { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-sub { margin: 0 auto 2rem; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-brand p { max-width: 100%; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
  .impact-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
  .pricing-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .testimonios-grid { grid-template-columns: 1fr; }
  .chat-widget { width: calc(100vw - 32px); right: 16px; }
  .cta-btns { flex-direction: column; align-items: center; }
}