*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #1a56db;
  --primary-dark: #1440a8;
  --accent: #f97316;
  --dark: #0f172a;
  --dark-2: #1e293b;
  --light: #f8fafc;
  --text: #334155;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 40px rgba(0,0,0,0.14);
  --transition: 0.25s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: #fff;
  line-height: 1.65;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }

/* ── BUTTONS ── */
.btn-primary {
  display: inline-block;
  background: var(--primary);
  color: #fff;
  padding: 14px 32px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-primary.full-width { width: 100%; text-align: center; }

.btn-outline {
  display: inline-block;
  border: 2px solid #fff;
  color: #fff;
  padding: 13px 30px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 1rem;
  transition: background var(--transition), color var(--transition);
}
.btn-outline:hover { background: #fff; color: var(--primary); }

/* ── NAVBAR ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--transition), box-shadow var(--transition);
}
.navbar.scrolled {
  background: #fff;
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
}
.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo { font-size: 1.4rem; font-weight: 800; line-height: 1; }
.logo-primary { color: var(--primary); }
.logo-accent { color: var(--accent); }
.logo-image { height: 36px; display: block; }
.navbar:not(.scrolled) .logo-primary { color: #fff; }
.navbar:not(.scrolled) .logo-accent { color: #fbbf24; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  transition: color var(--transition);
}
.navbar:not(.scrolled) .nav-links a { color: rgba(255,255,255,0.9); }
.nav-links a:hover { color: var(--primary); }
.navbar:not(.scrolled) .nav-links a:hover { color: #fff; }

.btn-nav {
  background: var(--primary);
  color: #fff !important;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600 !important;
  transition: background var(--transition) !important;
}
.btn-nav:hover { background: var(--primary-dark) !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all var(--transition);
}
.navbar.scrolled .hamburger span { background: var(--dark); }

/* ── HERO ── */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, #0f172a 0%, #1a3a6e 50%, #1a56db 100%);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 120px 24px 80px;
}
.hero::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(249,115,22,0.12) 0%, transparent 70%);
  top: -200px; right: -200px;
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(26,86,219,0.2) 0%, transparent 70%);
  bottom: -150px; left: -100px;
  border-radius: 50%;
}
.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}
.hero-tag {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  color: #e2e8f0;
  padding: 8px 18px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 24px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.15);
}
.hero h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero h1 .accent { color: #fbbf24; }
.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto 36px;
}
.hero-cta { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 56px; }

.hero-stats { display: flex; justify-content: center; align-items: center; gap: 32px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat strong { display: block; font-size: 2rem; font-weight: 800; color: #fff; line-height: 1; }
.stat span { font-size: 0.85rem; color: rgba(255,255,255,0.6); margin-top: 4px; display: block; }
.stat-divider { width: 1px; height: 40px; background: rgba(255,255,255,0.2); }

/* ── SECTIONS ── */
.section { padding: 96px 24px; }
.dark-bg { background: var(--dark-2); }
.dark-bg .section-tag { color: #fbbf24; }
.dark-bg .section-header h2, .dark-bg .section-header p { color: rgba(255,255,255,0.85); }
.dark-bg .section-sub { color: rgba(255,255,255,0.55) !important; }

.container { max-width: 1200px; margin: 0 auto; }

.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--primary);
  margin-bottom: 12px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto;
}

/* ── WHY MONTERREY CARDS ── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.card-icon {
  width: 52px; height: 52px;
  background: #eff6ff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  color: var(--primary);
  margin-bottom: 18px;
}
.card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; color: var(--dark); }
.card p { font-size: 0.95rem; color: var(--text-muted); }

/* ── SERVICES ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}
.service-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: background var(--transition), transform var(--transition);
}
.service-card:hover { background: rgba(255,255,255,0.09); transform: translateY(-4px); }
.service-card i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 20px;
  display: block;
}
.service-card h3 { font-size: 1.15rem; font-weight: 700; color: #f1f5f9; margin-bottom: 12px; }
.service-card p { font-size: 0.93rem; color: rgba(255,255,255,0.55); margin-bottom: 18px; }
.service-card ul { padding-left: 0; }
.service-card ul li {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  padding: 5px 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; align-items: center; gap: 8px;
}
.service-card ul li::before { content: '→'; color: var(--accent); font-weight: 700; }

/* ── HOW IT WORKS ── */
.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.step {
  flex: 1;
  min-width: 200px;
  max-width: 240px;
  text-align: center;
}
.step-number {
  font-size: 3rem;
  font-weight: 800;
  color: #e0e7ef;
  line-height: 1;
  margin-bottom: 16px;
}
.step-content h3 { font-size: 1.05rem; font-weight: 700; color: var(--dark); margin-bottom: 8px; }
.step-content p { font-size: 0.92rem; color: var(--text-muted); }
.step-arrow {
  padding-top: 16px;
  font-size: 1.3rem;
  color: var(--primary);
  opacity: 0.4;
  align-self: flex-start;
  margin-top: 8px;
}

/* ── TESTIMONIALS ── */
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.testimonial-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 32px;
}
.testimonial-card p {
  font-size: 0.97rem;
  color: rgba(255,255,255,0.75);
  font-style: italic;
  margin-bottom: 24px;
  line-height: 1.75;
}
.testimonial-card p::before { content: '\201C'; font-size: 1.4rem; color: var(--accent); font-style: normal; }
.testimonial-card p::after  { content: '\201D'; font-size: 1.4rem; color: var(--accent); font-style: normal; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}
.testimonial-author strong { display: block; color: #f1f5f9; font-size: 0.95rem; }
.testimonial-author span { font-size: 0.82rem; color: rgba(255,255,255,0.45); }

/* ── CONTACT ── */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.contact-info .section-tag { margin-bottom: 12px; }
.contact-info h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 800; color: var(--dark); margin-bottom: 16px; }
.contact-info > p { color: var(--text-muted); margin-bottom: 36px; }
.contact-details { display: flex; flex-direction: column; gap: 16px; }
.contact-item { display: flex; align-items: center; gap: 14px; }
.contact-item i { color: var(--primary); font-size: 1rem; width: 20px; }
.contact-item span { font-size: 0.95rem; color: var(--text); }

.contact-form { background: #fff; border: 1px solid var(--border); border-radius: 16px; padding: 40px; box-shadow: var(--shadow); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.form-group label { font-size: 0.88rem; font-weight: 600; color: var(--dark); }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}
.form-group textarea { resize: vertical; }
.form-note { text-align: center; font-size: 0.8rem; color: var(--text-muted); margin-top: 12px; }

/* ── FOOTER ── */
.footer { background: var(--dark); color: rgba(255,255,255,0.65); padding: 64px 24px 24px; }
.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  margin-bottom: 32px;
}
.footer-brand p { font-size: 0.9rem; margin-top: 14px; max-width: 280px; }
.footer-links h4 { color: #fff; font-size: 0.95rem; font-weight: 700; margin-bottom: 16px; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul a { font-size: 0.88rem; transition: color var(--transition); }
.footer-links ul a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; }
.footer-bottom p { font-size: 0.85rem; }
.social-links { display: flex; gap: 16px; }
.social-links a { font-size: 1.1rem; transition: color var(--transition); }
.social-links a:hover { color: var(--accent); }

/* ── TOAST ── */
.toast {
  position: fixed;
  bottom: 32px; right: 32px;
  background: #166534;
  color: #fff;
  padding: 14px 24px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 500;
  display: flex; align-items: center; gap: 10px;
  box-shadow: var(--shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34,1.56,0.64,1);
  z-index: 9999;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .contact-wrapper { grid-template-columns: 1fr; gap: 48px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: #fff;
    padding: 24px;
    gap: 20px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
  }
  .nav-links.open { display: flex; }
  .nav-links a { color: var(--text) !important; }
  .hamburger { display: flex; }
  .navbar.scrolled .hamburger span { background: var(--dark); }

  .section { padding: 64px 20px; }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); padding-top: 0; }
  .step { max-width: 100%; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .stat-divider { display: none; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; align-items: center; }
  .contact-form { padding: 24px; }
}