*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --navy: #08152B;
  --navy-2: #0D1B34;
  --navy-3: #122544;
  --navy-4: #06101F;

  --serfex: #66cc33;
  --serfex-2: #7DDB52;
  --serfex-3: #4EAF24;

  --white: #FFFFFF;
  --offwhite: #F6FAF4;
  --text-light: rgba(255,255,255,0.78);
  --text-light-soft: rgba(255,255,255,0.58);
  --text-dark: #10233F;
  --text-dark-soft: rgba(16,35,63,0.72);

  --border: rgba(102,204,51,0.18);
  --border-strong: rgba(102,204,51,0.26);
  --card: rgba(255,255,255,0.04);
  --card-2: rgba(255,255,255,0.03);
  --green-soft: rgba(102,204,51,0.10);

  --shadow: 0 18px 40px rgba(0,0,0,0.14);
  --shadow-soft: 0 14px 34px rgba(8,21,43,0.08);

  --radius-sm: 14px;
  --radius-md: 20px;
  --radius-lg: 24px;
  --radius-xl: 30px;

  --serfex-danger: #ff6b6b;
  --serfex-success-bg: rgba(102, 204, 51, 0.12);
  --serfex-success-text: #d7ffc2;
  --serfex-error-bg: rgba(255, 107, 107, 0.10);
  --serfex-error-text: #ffd4d4;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Outfit', sans-serif;
  background: var(--navy);
  color: var(--white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
}

.container {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

/* HEADER */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background 0.3s ease, backdrop-filter 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

.site-header.scrolled {
  background: rgba(8,21,43,0.9);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

.nav-wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo {
  height: 56px;
  width: auto;
  background: transparent;
  padding: 0;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  color: var(--text-light-soft);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.main-nav a:hover {
  color: var(--white);
}

.nav-cta {
  border: 1px solid var(--serfex);
  color: var(--serfex) !important;
  padding: 11px 16px;
  border-radius: 12px;
}

.nav-cta:hover {
  background: var(--serfex);
  color: var(--navy) !important;
}

/* HERO */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -120px;
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(102,204,51,0.08) 0%, transparent 68%);
  filter: blur(10px);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(102,204,51,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102,204,51,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  opacity: 0.12;
  pointer-events: none;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 44px;
  align-items: center;
}

.hero-copy {
  min-width: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--serfex);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  font-size: 0.78rem;
  margin-bottom: 18px;
}

.eyebrow-line {
  width: 34px;
  height: 2px;
  background: var(--serfex);
  border-radius: 999px;
}

.hero h1 {
  margin: 0 0 20px;
  font-size: clamp(2.8rem, 5vw, 4.9rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  font-weight: 800;
}

.hero h1 span {
  color: var(--serfex);
}

.hero-desc {
  max-width: 620px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--text-light);
  font-weight: 300;
  margin: 0 0 30px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 14px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: transform 0.22s ease, background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--serfex);
  color: var(--navy);
  box-shadow: 0 10px 24px rgba(102,204,51,0.18);
}

.btn-primary:hover {
  background: var(--serfex-2);
}

.btn-secondary {
  border: 1px solid rgba(255,255,255,0.14);
  color: var(--white);
  background: rgba(255,255,255,0.03);
}

.btn-secondary:hover {
  border-color: var(--serfex);
  color: var(--serfex);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

.stat-number {
  color: var(--serfex);
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--text-light-soft);
  font-size: 0.84rem;
  line-height: 1.45;
}

/* HERO VISUAL */
.hero-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 20px;
  min-width: 0;
}

.hero-photo-card {
  position: relative;
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.02));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  padding: 14px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-photo-overlay {
  position: absolute;
  inset: 14px;
  border-radius: 22px;
  background:
    linear-gradient(to top, rgba(8,21,43,0.55), rgba(8,21,43,0.03) 38%),
    radial-gradient(circle at top right, rgba(102,204,51,0.10), transparent 36%);
  pointer-events: none;
  z-index: 2;
}

.hero-photo {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  border-radius: 22px;
}

.hero-badge {
  position: absolute;
  right: 24px;
  bottom: 24px;
  z-index: 3;
  background: rgba(8,21,43,0.95);
  border: 1px solid rgba(102,204,51,0.30);
  backdrop-filter: blur(10px);
  color: var(--white);
  border-radius: 16px;
  padding: 14px 16px;
  min-width: 176px;
  box-shadow: 0 10px 24px rgba(0,0,0,0.20);
}

.hero-badge span {
  display: block;
  color: var(--serfex);
  font-size: 1.4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 4px;
}

.hero-badge small {
  display: block;
  color: var(--text-light);
  font-size: 0.78rem;
  line-height: 1.4;
}

.hero-trust-card {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-left: 4px solid var(--serfex);
  border-radius: 20px;
  padding: 24px;
  transition: transform 0.22s ease, border-color 0.22s ease, background 0.22s ease;
}

.hero-trust-card:hover {
  transform: translateY(-4px);
  background: rgba(102,204,51,0.08);
  border-color: rgba(102,204,51,0.28);
}

.trust-kicker {
  color: var(--serfex);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.hero-trust-card h3 {
  margin: 0 0 10px;
  font-size: 1.28rem;
  font-weight: 700;
  line-height: 1.2;
}

.hero-trust-card p {
  margin: 0;
  color: var(--text-light-soft);
  line-height: 1.75;
  font-size: 0.93rem;
}

/* GENERIC SECTIONS */
.section {
  padding: 96px 0;
}

.section-dark {
  background: var(--navy-2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-light {
  background: var(--offwhite);
  color: var(--text-dark);
}

.section-head {
  margin-bottom: 38px;
}

.section-head-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  align-items: end;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--serfex);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
  font-size: 0.76rem;
  margin-bottom: 14px;
}

.tag::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--serfex);
  border-radius: 999px;
}

.tag-dark {
  color: var(--serfex-3);
}

.tag-dark::before {
  background: var(--serfex-3);
}

.section h2 {
  margin: 0;
  font-size: clamp(2rem, 3.4vw, 3.2rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  font-weight: 800;
}

.dark-title {
  color: var(--text-dark);
}

.section-side-text {
  margin: 0;
  color: var(--text-light-soft);
  line-height: 1.8;
  font-size: 0.98rem;
  font-weight: 300;
}

/* PROBLEM */
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: center;
}

.problem-text p {
  color: var(--text-light);
  line-height: 1.85;
  font-size: 0.98rem;
  font-weight: 300;
  margin: 0 0 16px;
}

.problem-text strong {
  color: var(--white);
  font-weight: 600;
}

.pain-list {
  list-style: none;
  padding: 0;
  margin: 24px 0 0;
  display: grid;
  gap: 12px;
}

.pain-list li {
  position: relative;
  padding-left: 22px;
  color: var(--text-light);
  font-size: 0.93rem;
  line-height: 1.6;
}

.pain-list li::before {
  content: "→";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--serfex);
  font-weight: 800;
}

.problem-quote {
  background: var(--green-soft);
  border-left: 4px solid var(--serfex);
  border-radius: 0 18px 18px 0;
  padding: 32px 28px;
}

.problem-quote blockquote {
  margin: 0 0 14px;
  font-size: 1.42rem;
  line-height: 1.5;
  font-weight: 700;
}

.problem-quote cite {
  font-size: 0.8rem;
  color: var(--text-light-soft);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-style: normal;
}

/* SERVICES */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.service-card {
  background: var(--card-2);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px 22px;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  background: var(--green-soft);
  border-color: rgba(102,204,51,0.28);
}

.service-number {
  font-size: 2.7rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: rgba(102,204,51,0.22);
  margin-bottom: 18px;
}

.service-card h3 {
  margin: 0 0 10px;
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.35;
}

.service-card p {
  margin: 0;
  color: var(--text-light-soft);
  font-size: 0.9rem;
  line-height: 1.7;
  font-weight: 300;
}

/* MODEL */
.model-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 42px;
  align-items: start;
}

.model-copy p {
  margin: 0 0 16px;
  color: var(--text-dark-soft);
  line-height: 1.85;
  font-size: 0.98rem;
  font-weight: 300;
}

.model-copy strong {
  color: var(--text-dark);
  font-weight: 700;
}

.model-cta-box {
  margin-top: 28px;
  background: var(--navy);
  color: var(--white);
  border-radius: 20px;
  padding: 26px;
  box-shadow: var(--shadow-soft);
}

.model-cta-box p {
  margin: 0 0 18px;
  color: var(--white);
  font-size: 1.05rem;
  line-height: 1.7;
  font-weight: 500;
}

.steps {
  background: #ffffff;
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  padding: 8px 22px;
}

.step {
  display: flex;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(16,35,63,0.08);
}

.step:last-child {
  border-bottom: none;
}

.step-number {
  flex: 0 0 36px;
  font-size: 2rem;
  line-height: 1;
  font-weight: 800;
  color: var(--serfex-3);
  text-align: center;
}

.step h4 {
  margin: 0 0 6px;
  color: var(--text-dark);
  font-size: 1rem;
  font-weight: 700;
}

.step p {
  margin: 0;
  color: var(--text-dark-soft);
  font-size: 0.9rem;
  line-height: 1.65;
}

/* CREDIBILITY */
.cred-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 22px;
  align-items: stretch;
}

.cred-card,
.mini-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
}

.cred-card {
  padding: 30px 28px;
  height: 100%;
}

.cred-kicker {
  color: var(--serfex);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.cred-card h3 {
  margin: 0 0 14px;
  font-size: 1.45rem;
  line-height: 1.3;
  font-weight: 700;
}

.cred-card p {
  margin: 0;
  color: var(--text-light);
  line-height: 1.8;
  font-size: 0.96rem;
  font-weight: 300;
}

.cred-side {
  display: grid;
  gap: 16px;
}

.mini-card {
  padding: 22px;
  display: grid;
  gap: 8px;
}

.mini-card strong {
  font-size: 1rem;
  font-weight: 700;
}

.mini-card span {
  color: var(--text-light-soft);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* CTA / FORM */
.section-cta {
  text-align: left;
}

.cta-container {
  max-width: 1180px;
}

.cta-text {
  margin: 16px auto 30px;
  color: var(--text-light);
  line-height: 1.8;
  font-size: 0.98rem;
  font-weight: 300;
  max-width: 680px;
}

/* ===== NUEVO FORMULARIO SERFEX ===== */

.serfex-contact-wrap {
  display: grid;
  grid-template-columns: 0.96fr 1.04fr;
  gap: 40px;
  align-items: start;
}

.serfex-contact-copy {
  padding-top: 8px;
}

.serfex-contact-copy h2 {
  margin: 0 0 18px;
}

.serfex-lead {
  margin: 0 0 28px;
  color: var(--text-light);
  line-height: 1.8;
  font-size: 0.98rem;
  font-weight: 300;
  max-width: 560px;
}

.serfex-benefits {
  display: grid;
  gap: 14px;
}

.benefit-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 18px;
  transition: transform 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}

.benefit-item:hover {
  transform: translateY(-2px);
  background: rgba(102,204,51,0.08);
  border-color: rgba(102,204,51,0.28);
}

.benefit-item strong {
  display: block;
  margin-bottom: 4px;
  color: var(--white);
  font-size: 0.98rem;
}

.benefit-item span {
  color: var(--text-light-soft);
  font-size: 0.92rem;
  line-height: 1.55;
}

.serfex-form-card {
  text-align: left;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 26px;
  box-shadow: var(--shadow);
}

.serfex-form-top {
  margin-bottom: 20px;
}

.serfex-form-top h3 {
  margin: 0 0 8px;
  font-size: 1.28rem;
  color: var(--white);
  line-height: 1.2;
}

.serfex-form-top p {
  margin: 0;
  color: var(--text-light-soft);
  font-size: 0.94rem;
  line-height: 1.7;
}

.serfex-form {
  display: grid;
  gap: 18px;
}

.form-grid {
  display: grid;
  gap: 16px;
}

.form-grid.two-cols {
  grid-template-columns: 1fr 1fr;
}

.form-group {
  display: grid;
  gap: 8px;
}

.form-group label {
  color: var(--text-light-soft);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.05);
  color: var(--white);
  border-radius: 14px;
  padding: 14px 15px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.94rem;
  outline: none;
  transition: border-color 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, transform 0.22s ease;
  appearance: none;
  -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.36);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--serfex);
  box-shadow: 0 0 0 4px rgba(102,204,51,0.10);
  background: rgba(255,255,255,0.07);
  transform: translateY(-1px);
}

.form-group textarea {
  min-height: 130px;
  resize: vertical;
}

.form-group select option {
  background: var(--navy);
  color: var(--white);
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: rgba(255, 107, 107, 0.62);
  box-shadow: 0 0 0 4px rgba(255, 107, 107, 0.10);
}

.field-error {
  min-height: 16px;
  color: var(--serfex-danger);
  font-size: 0.82rem;
  line-height: 1.35;
}

.serfex-submit-btn {
  width: 100%;
  margin-top: 4px;
  border: none;
  cursor: pointer;
  border-radius: 16px;
  min-height: 54px;
  padding: 0 22px;
  background: linear-gradient(135deg, var(--serfex) 0%, var(--serfex-3) 100%);
  color: var(--navy);
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 800;
  letter-spacing: 0.01em;
  transition: transform 0.22s ease, box-shadow 0.22s ease, opacity 0.22s ease;
  box-shadow: 0 14px 28px rgba(102,204,51,0.22);
}

.serfex-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(102,204,51,0.28);
}

.serfex-submit-btn:disabled {
  opacity: 0.75;
  cursor: not-allowed;
  transform: none;
  box-shadow: 0 10px 18px rgba(102,204,51,0.16);
}

.serfex-form-status {
  display: none;
  padding: 14px 16px;
  border-radius: 14px;
  font-size: 0.92rem;
  line-height: 1.6;
}

.serfex-form-status.success {
  display: block;
  background: var(--serfex-success-bg);
  color: var(--serfex-success-text);
  border: 1px solid rgba(102,204,51,0.24);
}

.serfex-form-status.error {
  display: block;
  background: var(--serfex-error-bg);
  color: var(--serfex-error-text);
  border: 1px solid rgba(255,107,107,0.22);
}

.serfex-form-note {
  margin: 2px 0 0;
  text-align: center;
  color: var(--text-light-soft);
  font-size: 0.84rem;
  line-height: 1.65;
}

.serfex-form-note a {
  color: var(--white);
  text-decoration: none;
}

.serfex-form-note a:hover {
  color: var(--serfex);
}

/* FOOTER */
.site-footer {
  background: var(--navy-4);
  border-top: 1px solid var(--border);
  padding: 56px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 30px;
}

.footer-logo {
  max-width: 260px;
  margin-bottom: 14px;
}

.footer-text {
  margin: 0;
  color: var(--text-light-soft);
  font-size: 0.9rem;
  line-height: 1.75;
  max-width: 340px;
}

.site-footer h4,
.site-footer h5 {
  margin: 0 0 12px;
  color: var(--serfex);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.74rem;
  font-weight: 700;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 10px;
}

.footer-links a {
  color: var(--text-light-soft);
  font-size: 0.9rem;
  line-height: 1.6;
  transition: color 0.22s ease;
}

.footer-links a:hover {
  color: var(--serfex);
}

.footer-contact a {
  color: var(--text-light-soft);
}

.footer-contact a:hover {
  color: var(--serfex);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 16px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  color: rgba(255,255,255,0.34);
  font-size: 0.79rem;
}

/* WHATSAPP */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 8px 26px rgba(37,211,102,0.35);
  z-index: 1200;
  transition: transform 0.22s ease;
}

.wa-float:hover {
  transform: scale(1.08);
}

.wa-float svg {
  width: 28px;
  height: 28px;
}

/* REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== MOBILE MENU ===== */

body.menu-open {
  overflow: hidden;
}

.menu-toggle {
  display: none;
  width: 48px;
  height: 48px;
  border: 1px solid rgba(102,204,51,0.22);
  background: rgba(255,255,255,0.03);
  border-radius: 12px;
  padding: 0;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.menu-toggle:hover {
  border-color: rgba(102,204,51,0.35);
  background: rgba(255,255,255,0.05);
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--white);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.menu-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  position: fixed;
  top: 84px;
  left: 14px;
  right: 14px;
  z-index: 1100;
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 14px;
  background: rgba(8,21,43,0.96);
  border: 1px solid rgba(102,204,51,0.18);
  border-radius: 18px;
  backdrop-filter: blur(16px);
  box-shadow: 0 24px 50px rgba(0,0,0,0.22);
}

.mobile-nav a {
  color: var(--white);
  padding: 14px 14px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  background: rgba(255,255,255,0.02);
  transition: background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}

.mobile-nav a:hover {
  background: rgba(102,204,51,0.08);
  color: var(--serfex);
}

.mobile-nav-cta {
  border: 1px solid rgba(102,204,51,0.28);
  color: var(--serfex) !important;
}

.mobile-nav.is-open {
  display: flex;
}

.mobile-nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1050;
  display: none;
  background: rgba(3, 10, 20, 0.45);
}

.mobile-nav-backdrop.is-open {
  display: block;
}

/* ===== CASOS / CONVERSIÓN ===== */

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.case-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 22px;
  transition: all 0.25s ease;
}

.case-card:hover {
  transform: translateY(-4px);
  background: rgba(102,204,51,0.08);
  border-color: rgba(102,204,51,0.3);
}

.case-card h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.case-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-light-soft);
  line-height: 1.6;
}

.case-card.highlight {
  border: 1px solid var(--serfex);
  background: rgba(102,204,51,0.1);
}

.cases-cta {
  margin-top: 32px;
  text-align: center;
}

.cases-cta p {
  margin-bottom: 14px;
  color: var(--text-light);
}

/* ===== RESULTADOS / EXPERIENCIA ===== */

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-top: 32px;
}

.result-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  transition: all 0.25s ease;
}

.result-card:hover {
  transform: translateY(-4px);
  background: rgba(102,204,51,0.08);
}

.result-number {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--serfex);
  margin-bottom: 8px;
}

.result-card h3 {
  font-size: 1rem;
  margin: 0 0 8px;
}

.result-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-light-soft);
  line-height: 1.6;
}

/* CASOS REALES */

.cases-real {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.case-real-card {
  background: rgba(255,255,255,0.02);
  border-left: 3px solid var(--serfex);
  padding: 20px;
  border-radius: 12px;
}

.case-real-card h4 {
  font-size: 0.95rem;
  margin: 0 0 6px;
}

.case-real-card p {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-light-soft);
  line-height: 1.6;
}

/* CTA */

.results-cta {
  margin-top: 32px;
  text-align: center;
}

.results-cta p {
  margin-bottom: 12px;
  color: var(--text-light);
}

/* ===== RESPONSIVE ===== */

@media (max-width: 1180px) {
  .hero-grid {
    grid-template-columns: 1fr 0.92fr;
    gap: 34px;
  }

  .hero h1 {
    font-size: clamp(2.5rem, 4.8vw, 4.2rem);
  }
}

@media (max-width: 1080px) {
  .hero-grid,
  .problem-grid,
  .model-grid,
  .cred-grid,
  .section-head-grid,
  .footer-grid,
  .serfex-contact-wrap {
    grid-template-columns: 1fr;
  }

  .hero {
    padding: 130px 0 72px;
  }

  .hero-copy {
    order: 1;
  }

  .hero-visual {
    order: 2;
    max-width: 620px;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-stats {
    grid-template-columns: repeat(3, 1fr);
  }

  .section-head-grid {
    gap: 18px;
  }

  .section-side-text {
    max-width: 760px;
  }

  .footer-text {
    max-width: none;
  }

  .serfex-contact-copy {
    padding-top: 0;
  }
}

@media (max-width: 900px) {
  .cases-grid,
  .results-grid,
  .cases-real {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .container {
    width: min(100% - 36px, 1180px);
  }

  .site-header {
    padding: 12px 0;
  }

  .main-nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .brand-logo {
    height: 48px;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 56px;
  }

  .hero-grid {
    gap: 28px;
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 3.4rem);
    line-height: 1.02;
    margin-bottom: 16px;
  }

  .hero-desc {
    font-size: 0.98rem;
    line-height: 1.75;
    margin-bottom: 24px;
  }

  .hero-actions {
    gap: 12px;
    margin-bottom: 28px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 14px;
    padding-top: 20px;
  }

  .stat-number {
    font-size: 1.65rem;
  }

  .hero-visual {
    max-width: 100%;
  }

  .hero-photo-card {
    padding: 10px;
    border-radius: 22px;
  }

  .hero-photo-overlay {
    inset: 10px;
    border-radius: 16px;
  }

  .hero-photo {
    border-radius: 16px;
    aspect-ratio: 4 / 5;
  }

  .hero-badge {
    right: 16px;
    bottom: 16px;
    min-width: 150px;
    padding: 12px 14px;
  }

  .hero-badge span {
    font-size: 1.2rem;
  }

  .hero-trust-card {
    padding: 20px;
    border-radius: 16px;
  }

  .hero-trust-card h3 {
    font-size: 1.14rem;
  }

  .services-grid,
  .form-grid.two-cols {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 78px 0;
  }

  .section h2 {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
  }

  .problem-quote {
    padding: 24px 20px;
  }

  .problem-quote blockquote {
    font-size: 1.18rem;
  }

  .steps {
    padding: 6px 18px;
  }

  .step {
    gap: 14px;
    padding: 18px 0;
  }

  .step-number {
    flex-basis: 28px;
    font-size: 1.6rem;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .wa-float {
    right: 16px;
    bottom: 16px;
    width: 54px;
    height: 54px;
  }

  .serfex-form-card {
    padding: 22px;
    border-radius: 20px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header {
    padding: 10px 0;
  }

  .brand-logo {
    height: 44px;
  }

  .hero {
    padding: 96px 0 48px;
  }

  .eyebrow {
    gap: 8px;
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    margin-bottom: 14px;
  }

  .eyebrow-line {
    width: 24px;
  }

  .hero h1 {
    font-size: clamp(2rem, 10vw, 2.85rem);
    letter-spacing: -0.045em;
  }

  .hero-desc {
    font-size: 0.94rem;
    line-height: 1.7;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    min-height: 48px;
    padding: 0 18px;
    font-size: 0.92rem;
  }

  .hero-photo-card {
    padding: 8px;
    border-radius: 18px;
  }

  .hero-photo-overlay {
    inset: 8px;
    border-radius: 12px;
  }

  .hero-photo {
    border-radius: 12px;
  }

  .hero-badge {
    right: 12px;
    bottom: 12px;
    min-width: 136px;
    padding: 10px 12px;
    border-radius: 12px;
  }

  .hero-badge span {
    font-size: 1.05rem;
  }

  .hero-badge small {
    font-size: 0.72rem;
  }

  .hero-trust-card {
    padding: 18px;
  }

  .section {
    padding: 68px 0;
  }

  .section h2 {
    font-size: clamp(1.65rem, 8.2vw, 2.2rem);
  }

  .tag {
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    gap: 8px;
  }

  .tag::before {
    width: 20px;
  }

  .service-card {
    padding: 22px 18px;
    border-radius: 16px;
  }

  .service-number {
    font-size: 2.25rem;
    margin-bottom: 14px;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    padding: 13px 14px;
    font-size: 0.92rem;
    border-radius: 12px;
  }

  .footer-logo {
    max-width: 220px;
  }

  .footer-text,
  .footer-links a {
    font-size: 0.86rem;
  }

  .footer-bottom {
    font-size: 0.75rem;
  }

  .serfex-form-card {
    padding: 18px;
  }

  .serfex-form-top h3 {
    font-size: 1.15rem;
  }

  .serfex-form-note {
    font-size: 0.8rem;
  }
}

@media (min-width: 821px) {
  .mobile-nav,
  .mobile-nav-backdrop {
    display: none !important;
  }
}