/* ======================================
   DENTAL BRASILIS - Design System
   ====================================== */

/* --- CSS Variables / Design Tokens --- */
:root {
  /* Brand Colors */
  --brand-blue: #064EAE;
  --brand-blue-dark: #043A82;
  --brand-blue-light: #1A6FD4;
  --brand-teal: #02A1A2;
  --brand-teal-dark: #028384;
  --brand-teal-light: #03C4C5;
  --brand-teal-glow: rgba(2, 161, 162, 0.15);

  /* Neutrals */
  --white: #FFFFFF;
  --gray-50: #F8FAFB;
  --gray-100: #F0F4F6;
  --gray-200: #E2E8ED;
  --gray-300: #CBD5DE;
  --gray-400: #9BAAB8;
  --gray-500: #6B7F8E;
  --gray-600: #4A5B6A;
  --gray-700: #2E3E4C;
  --gray-800: #1A2A38;
  --gray-900: #0D1B26;

  /* Functional */
  --text-primary: var(--gray-800);
  --text-secondary: var(--gray-600);
  --text-muted: var(--gray-500);
  --bg-primary: var(--white);
  --bg-secondary: var(--gray-50);
  --bg-accent: #F0FAFA;
  --border-color: var(--gray-200);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.12);
  --shadow-teal: 0 4px 24px rgba(2, 161, 162, 0.2);

  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Outfit', var(--font-primary);

  /* Spacing */
  --section-padding: 96px 0;
  --container-max: 1200px;
  --container-padding: 0 24px;

  /* Borders */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background: var(--bg-primary);
  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 {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul {
  list-style: none;
}

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

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  transition: all var(--transition-normal);
}

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

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.header__logo img {
  height: 44px;
  width: auto;
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 36px;
}

.header__nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 4px 0;
}

.header__nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-teal);
  border-radius: 2px;
  transition: width var(--transition-normal);
}

.header__nav a:hover {
  color: var(--brand-teal);
}

.header__nav a:hover::after {
  width: 100%;
}

.header__nav a.active {
  color: var(--brand-teal);
}

.header__nav a.active::after {
  width: 100%;
}

.header__cta {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header__phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-blue);
}

.header__phone svg {
  width: 18px;
  height: 18px;
  color: var(--brand-teal);
}

/* Mobile menu toggle */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: var(--transition-normal);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-normal);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
  transition: transform var(--transition-fast);
}

.btn:hover svg {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--brand-teal);
  color: var(--white);
  box-shadow: 0 4px 16px rgba(2, 161, 162, 0.3);
}

.btn--primary:hover {
  background: var(--brand-teal-dark);
  box-shadow: 0 6px 24px rgba(2, 161, 162, 0.4);
  transform: translateY(-2px);
}

.btn--secondary {
  background: var(--white);
  color: var(--brand-teal);
  border: 2px solid var(--brand-teal);
}

.btn--secondary:hover {
  background: var(--brand-teal);
  color: var(--white);
  transform: translateY(-2px);
}

.btn--outline-white {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn--outline-white:hover {
  background: var(--white);
  color: var(--brand-teal);
  border-color: var(--white);
  transform: translateY(-2px);
}

.btn--sm {
  padding: 10px 20px;
  font-size: 0.85rem;
}

.btn--whatsapp {
  background: #25D366;
  color: var(--white);
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.3);
}

.btn--whatsapp:hover {
  background: #1fb855;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
  transform: translateY(-2px);
}

/* --- Hero Section --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  overflow: hidden;
  background: linear-gradient(135deg, var(--white) 0%, var(--gray-50) 50%, var(--bg-accent) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(2, 161, 162, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(6, 78, 174, 0.04) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero__content {
  animation: fadeInLeft 0.8s ease forwards;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--brand-teal-glow);
  border: 1px solid rgba(2, 161, 162, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--brand-teal);
  margin-bottom: 24px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hero__badge svg {
  width: 16px;
  height: 16px;
}

.hero__title {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--gray-800);
  margin-bottom: 20px;
}

.hero__title span {
  color: var(--brand-teal);
  position: relative;
}

.hero__title span::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 100%;
  height: 6px;
  background: rgba(2, 161, 162, 0.15);
  border-radius: 3px;
}

.hero__subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 480px;
  line-height: 1.7;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__image {
  position: relative;
  animation: fadeInRight 0.8s ease 0.2s both;
}

.hero__image-wrapper {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

.hero__image-wrapper img {
  width: 100%;
  height: 500px;
  object-fit: cover;
}

.hero__image-wrapper::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(2, 161, 162, 0.1) 0%, transparent 60%);
  pointer-events: none;
}

/* Decorative elements for hero */
.hero__decoration {
  position: absolute;
  width: 300px;
  height: 300px;
  border: 2px solid rgba(2, 161, 162, 0.08);
  border-radius: 50%;
  top: -50px;
  right: -50px;
  animation: float 6s ease-in-out infinite;
}

.hero__decoration--2 {
  width: 200px;
  height: 200px;
  top: auto;
  right: auto;
  bottom: -30px;
  left: -30px;
  border-color: rgba(6, 78, 174, 0.08);
  animation-delay: -3s;
}

/* --- Trust Bar --- */
.trust-bar {
  position: relative;
  z-index: 2;
  margin-top: -40px;
  padding-bottom: 32px;
}

.trust-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-100);
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px;
}

.trust-bar__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-teal-glow), rgba(2, 161, 162, 0.08));
  border-radius: var(--radius-md);
  color: var(--brand-teal);
}

.trust-bar__icon svg {
  width: 24px;
  height: 24px;
}

.trust-bar__text h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 2px;
}

.trust-bar__text p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--brand-teal);
  margin-bottom: 12px;
}

.section-header__label::before,
.section-header__label::after {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--brand-teal);
  border-radius: 1px;
  opacity: 0.4;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-header__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.7;
}

/* --- Categories Section --- */
.categories {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.categories__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.category-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-teal), var(--brand-blue));
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  transform-origin: left;
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(2, 161, 162, 0.2);
}

.category-card:hover::before {
  transform: scaleX(1);
}

.category-card__icon {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-teal-glow), rgba(6, 78, 174, 0.05));
  border-radius: var(--radius-md);
  margin: 0 auto 20px;
  color: var(--brand-teal);
  transition: all var(--transition-normal);
}

.category-card:hover .category-card__icon {
  background: var(--brand-teal);
  color: var(--white);
  transform: scale(1.08);
}

.category-card__icon svg {
  width: 32px;
  height: 32px;
}

.category-card__title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.category-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.category-card__arrow {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-teal);
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition-normal);
}

.category-card__arrow svg {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.category-card:hover .category-card__arrow {
  opacity: 1;
  transform: translateY(0);
}

.category-card:hover .category-card__arrow svg {
  transform: translateX(3px);
}

/* --- About Section --- */
.about {
  padding: var(--section-padding);
  background: var(--bg-primary);
}

.about .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image {
  position: relative;
}

.about__image-main {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about__image-main img {
  width: 100%;
  height: 460px;
  object-fit: cover;
}

.about__image-accent {
  position: absolute;
  bottom: -24px;
  right: -24px;
  width: 200px;
  height: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 4px solid var(--white);
}

.about__image-accent img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.about__content {
  padding-left: 20px;
}

.about__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--brand-teal);
  margin-bottom: 12px;
}

.about__title {
  font-family: var(--font-display);
  font-size: 2.3rem;
  font-weight: 800;
  color: var(--gray-800);
  margin-bottom: 20px;
  line-height: 1.2;
}

.about__text {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 36px;
}

.about__stat {
  text-align: center;
  padding: 20px 12px;
  background: var(--bg-secondary);
  border-radius: var(--radius-md);
}

.about__stat-number {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-teal);
  margin-bottom: 4px;
}

.about__stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* --- Brands/Partners Section --- */
.brands {
  padding: 72px 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--gray-100);
  border-bottom: 1px solid var(--gray-100);
}

.brands__marquee {
  display: flex;
  align-items: center;
  gap: 64px;
  animation: marquee 30s linear infinite;
}

@keyframes marquee {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.brands__marquee-wrapper {
  overflow: hidden;
  display: flex;
  gap: 64px;
}

.brand-item {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--gray-300);
  white-space: nowrap;
  transition: color var(--transition-normal);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.brand-item:hover {
  color: var(--brand-teal);
}

/* --- Differentials Section --- */
.differentials {
  padding: var(--section-padding);
  background: var(--bg-primary);
}

.differentials__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}

.differential-card {
  display: flex;
  gap: 24px;
  padding: 32px;
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-100);
  transition: all var(--transition-normal);
}

.differential-card:hover {
  background: var(--white);
  box-shadow: var(--shadow-md);
  border-color: rgba(2, 161, 162, 0.15);
  transform: translateY(-3px);
}

.differential-card__icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-teal), var(--brand-teal-dark));
  border-radius: var(--radius-md);
  color: var(--white);
  box-shadow: var(--shadow-teal);
}

.differential-card__icon svg {
  width: 28px;
  height: 28px;
}

.differential-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 8px;
}

.differential-card__desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- CTA Section --- */
.cta {
  padding: 96px 0;
  background: linear-gradient(135deg, var(--brand-blue) 0%, var(--brand-blue-dark) 40%, #023062 100%);
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(2, 161, 162, 0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(2, 161, 162, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.cta .container {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta__title {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.2;
}

.cta__subtitle {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 540px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* --- Contact Section --- */
.contact {
  padding: var(--section-padding);
  background: var(--bg-secondary);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact__item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact__item-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--brand-teal-glow), rgba(2, 161, 162, 0.08));
  border-radius: var(--radius-md);
  color: var(--brand-teal);
}

.contact__item-icon svg {
  width: 22px;
  height: 22px;
}

.contact__item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 4px;
}

.contact__item p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.contact__form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--gray-100);
}

.contact__form h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--gray-800);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: var(--font-primary);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--gray-50);
  transition: all var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--brand-teal);
  box-shadow: 0 0 0 3px rgba(2, 161, 162, 0.1);
  background: var(--white);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* --- Footer --- */
.footer {
  background: var(--gray-900);
  color: var(--gray-400);
  padding: 64px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer__brand img {
  height: 40px;
  margin-bottom: 16px;
  filter: brightness(10);
}

.footer__brand p {
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--gray-500);
  max-width: 280px;
}

.footer__social {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.footer__social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--gray-400);
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  background: var(--brand-teal);
  color: var(--white);
  transform: translateY(-2px);
}

.footer__social a svg {
  width: 18px;
  height: 18px;
}

.footer__column h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 20px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.footer__column ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__column a {
  font-size: 0.875rem;
  color: var(--gray-500);
  transition: all var(--transition-fast);
}

.footer__column a:hover {
  color: var(--brand-teal);
  padding-left: 4px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: var(--gray-600);
}

/* --- WhatsApp FAB --- */
.whatsapp-fab {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: all var(--transition-normal);
  cursor: pointer;
  animation: pulse 2s ease-in-out infinite;
}

.whatsapp-fab:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
  animation: none;
}

.whatsapp-fab svg {
  width: 32px;
  height: 32px;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .hero__subtitle {
    margin: 0 auto 36px;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__image-wrapper img {
    height: 380px;
  }

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

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

  .about .container {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about__content {
    padding-left: 0;
    text-align: center;
  }

  .contact__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .differentials__grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  :root {
    --section-padding: 64px 0;
  }

  .header .container {
    height: 64px;
  }

  .header__logo img {
    height: 34px;
  }

  .header__nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
    box-shadow: var(--shadow-lg);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: all var(--transition-normal);
  }

  .header__nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }

  .header__nav a {
    padding: 12px 16px;
    width: 100%;
    border-radius: var(--radius-sm);
  }

  .header__nav a:hover {
    background: var(--gray-50);
  }

  .mobile-toggle {
    display: flex;
  }

  .header__phone {
    display: none;
  }

  .hero {
    min-height: auto;
    padding: 120px 0 60px;
  }

  .hero__title {
    font-size: 2.4rem;
  }

  .hero__image-wrapper img {
    height: 300px;
  }

  .hero__decoration {
    display: none;
  }

  .trust-bar {
    margin-top: -20px;
  }

  .trust-bar__grid {
    grid-template-columns: 1fr;
    padding: 24px;
  }

  .categories__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .section-header__title {
    font-size: 1.8rem;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .about__stat-number {
    font-size: 1.5rem;
  }

  .about__image-accent {
    width: 140px;
    height: 140px;
    bottom: -16px;
    right: -8px;
  }

  .cta__title {
    font-size: 1.8rem;
  }

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

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .cta__actions {
    flex-direction: column;
    align-items: center;
  }
}