:root {
  --primary: #25D366;
  --primary-dark: #128C7E;
  --primary-light: #DCF8C6;
  --accent: #FF6B35;
  --accent-dark: #E55A2B;
  --dark: #1A1A2E;
  --dark-2: #16213E;
  --dark-3: #0F3460;
  --text: #2D2D2D;
  --text-light: #6B7280;
  --text-muted: #9CA3AF;
  --white: #FFFFFF;
  --off-white: #F9FAFB;
  --border: #E5E7EB;
  --border-light: #F3F4F6;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.06);
  --shadow: 0 4px 6px rgba(0,0,0,0.07), 0 2px 4px rgba(0,0,0,0.06);
  --shadow-md: 0 10px 25px rgba(0,0,0,0.1), 0 4px 10px rgba(0,0,0,0.06);
  --shadow-lg: 0 20px 40px rgba(0,0,0,0.12), 0 8px 16px rgba(0,0,0,0.08);
  --shadow-xl: 0 30px 60px rgba(0,0,0,0.15);
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  --font-sans: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-display: 'Inter', 'Segoe UI', system-ui, sans-serif;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1280px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

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

.section {
  padding: 96px 0;
}

.section--sm {
  padding: 64px 0;
}

.section--lg {
  padding: 128px 0;
}

.section--dark {
  background: var(--dark);
  color: var(--white);
}

.section--dark-2 {
  background: var(--dark-2);
  color: var(--white);
}

.section--gray {
  background: var(--off-white);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--primary-dark);
  background: var(--primary-light);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.section-label--light {
  color: var(--primary);
  background: rgba(37, 211, 102, 0.15);
}

.section-title {
  font-size: clamp(1.75rem, 3vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--dark);
  margin-bottom: 16px;
}

.section-title--white {
  color: var(--white);
}

.section-subtitle {
  font-size: 1.0625rem;
  color: var(--text-light);
  max-width: 560px;
  line-height: 1.7;
}

.section-subtitle--white {
  color: rgba(255,255,255,0.7);
}

.section-header {
  margin-bottom: 56px;
}

.section-header--center {
  text-align: center;
}

.section-header--center .section-subtitle {
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background var(--transition);
}

.btn:hover::before {
  background: rgba(255,255,255,0.1);
}

.btn--primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.35);
}

.btn--primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.45);
  transform: translateY(-1px);
}

.btn--primary:active {
  transform: translateY(0);
}

.btn--accent {
  background: var(--accent);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(255, 107, 53, 0.35);
}

.btn--accent:hover {
  background: var(--accent-dark);
  box-shadow: 0 6px 20px rgba(255, 107, 53, 0.45);
  transform: translateY(-1px);
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.4);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255,255,255,0.1);
}

.btn--outline-dark {
  background: transparent;
  color: var(--dark);
  border: 2px solid var(--border);
}

.btn--outline-dark:hover {
  border-color: var(--primary);
  color: var(--primary-dark);
}

.btn--lg {
  padding: 18px 36px;
  font-size: 1.0625rem;
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.875rem;
}

.btn--whatsapp {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

.btn--whatsapp:hover {
  background: var(--primary-dark);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
  transform: translateY(-2px);
}

.btn-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ============================================================
   HEADER / NAV
============================================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 32px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  text-decoration: none;
}

.header__logo-mark {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -0.05em;
  flex-shrink: 0;
}

.header__logo-text {
  font-size: 1.125rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.header__logo-sub {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
  justify-content: center;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-light);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--dark);
  background: var(--border-light);
}

.nav__link.active {
  color: var(--primary-dark);
  background: var(--primary-light);
  font-weight: 600;
}

.header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.header__wa-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: var(--white);
  padding: 9px 18px;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  transition: all var(--transition);
  box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3);
}

.header__wa-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

.header__wa-btn svg {
  width: 16px;
  height: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}

.nav-toggle:hover {
  background: var(--border-light);
}

.nav-toggle__bar {
  width: 22px;
  height: 2px;
  background: var(--dark);
  border-radius: 2px;
  transition: all var(--transition);
}

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

.nav-toggle.open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

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

/* ============================================================
   HERO
============================================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-3) 50%, #0a2a4a 100%);
  position: relative;
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(37, 211, 102, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 20% 80%, rgba(255, 107, 53, 0.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(37, 211, 102, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
  padding: 80px 0;
}

.hero__content {
  max-width: 580px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(37, 211, 102, 0.15);
  border: 1px solid rgba(37, 211, 102, 0.3);