/* ========================================
   TAV Agência - Estilos Oficiais
   Paleta: Navy + Gradiente Azul→Roxo
   ======================================== */

/* ====================
   CSS Variables (tokens oficiais TAV)
   ==================== */
:root {
  /* Background */
  --bg-primary: #0B1325;
  --bg-elevated: #131C33;
  --bg-hover: #1A2440;
  --bg-card: #FFFFFF;

  /* Accent: gradiente oficial */
  --accent-blue: #3E81BA;
  --accent-mid: #5C69AB;
  --accent-purple: #864A99;

  /* Brand gradient */
  --gradient-brand: linear-gradient(135deg, #3E81BA 0%, #5C69AB 50%, #864A99 100%);
  --gradient-brand-hover: linear-gradient(135deg, #4A8DC4 0%, #6774B8 100%);

  /* Text */
  --text-primary: #FFFFFF;
  --text-on-light: #0B1325;
  --text-muted: #8A92A8;
  --text-muted-light: #6E7488;

  /* Borders */
  --border-subtle: rgba(255,255,255,0.08);
  --border-subtle-dark: rgba(11,19,37,0.08);

  /* Tipografia */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Espaçamentos */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 5rem;

  /* Bordas */
  --border-radius-sm: 8px;
  --border-radius-md: 12px;
  --border-radius-lg: 20px;
  --border-radius-full: 9999px;

  /* Sombras */
  --shadow-sm: 0 2px 8px rgba(11, 19, 37, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 19, 37, 0.12);
  --shadow-lg: 0 16px 48px rgba(11, 19, 37, 0.24);
  --shadow-glow: 0 8px 40px rgba(134, 74, 153, 0.35);

  /* Transições */
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Z-index */
  --z-navbar: 1000;
  --z-modal: 2000;
  --z-whatsapp: 1500;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-on-light);
  background-color: var(--bg-card);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

ul { list-style: none; }

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, textarea, select {
  font-family: inherit;
  font-size: 1rem;
}

/* ====================
   Utilities
   ==================== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section {
  padding: var(--spacing-2xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--accent-purple);
  text-transform: uppercase;
  letter-spacing: 2.5px;
  margin-bottom: var(--spacing-xs);
}

.section-header h2 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--text-on-light);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.section-header p {
  font-size: 1.125rem;
  color: var(--text-muted-light);
  max-width: 600px;
  margin: 0 auto;
}

.gradient-text {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

/* ====================
   Buttons
   ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--border-radius-full);
  transition: all var(--transition-base);
  cursor: pointer;
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-brand);
  color: var(--text-primary);
  box-shadow: 0 4px 20px rgba(94, 105, 171, 0.30);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--text-on-light);
  border: 1.5px solid rgba(11, 19, 37, 0.18);
}

.btn-secondary:hover {
  background: var(--bg-primary);
  color: var(--text-primary);
  border-color: var(--bg-primary);
}

.btn-large {
  padding: 1.05rem 2rem;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ====================
   Navigation
   ==================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-navbar);
  background: rgba(11, 19, 37, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.navbar.scrolled {
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.875rem var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

.logo img {
  height: 40px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
}

.nav-links a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  transition: color var(--transition-fast);
}

.nav-links a:hover { color: var(--text-primary); }

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-brand);
  transition: width var(--transition-base);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.btn-nav {
  background: var(--gradient-brand);
  color: var(--text-primary) !important;
  padding: 0.625rem 1.25rem;
  border-radius: var(--border-radius-full);
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(134, 74, 153, 0.30);
}

.btn-nav::after { display: none; }

.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(134, 74, 153, 0.45);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 5px;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* ====================
   Hero Section
   ==================== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  background: var(--bg-primary);
  padding: 100px var(--spacing-md) 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(62, 129, 186, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(134, 74, 153, 0.18) 0%, transparent 50%),
    radial-gradient(circle at 50% 80%, rgba(92, 105, 171, 0.10) 0%, transparent 60%);
}

.hero-visual {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-shape {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.55;
}

.shape-1 {
  width: 420px;
  height: 420px;
  background: var(--accent-blue);
  top: 10%;
  right: 8%;
  animation: float 9s ease-in-out infinite;
}

.shape-2 {
  width: 320px;
  height: 320px;
  background: var(--accent-purple);
  bottom: 15%;
  left: 5%;
  animation: float 11s ease-in-out infinite reverse;
}

.shape-3 {
  width: 220px;
  height: 220px;
  background: var(--accent-mid);
  top: 55%;
  left: 45%;
  animation: float 7s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(20px, -30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  padding: 0.5rem 1.25rem;
  border-radius: var(--border-radius-full);
  margin-bottom: var(--spacing-md);
}

.hero-tag i {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text h1 {
  font-size: clamp(2.5rem, 8vw, 4.75rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.03em;
}

.hero-text h1 .accent {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-text p {
  font-size: 1.1875rem;
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin: 0 auto var(--spacing-lg);
  line-height: 1.6;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  justify-content: center;
}

.hero-cta .btn-secondary {
  color: var(--text-primary);
  border-color: rgba(255, 255, 255, 0.25);
}

.hero-cta .btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
  border-color: var(--text-primary);
}

.hero-scroll {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-xs);
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  animation: bounce 2.2s infinite;
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-10px); }
  60% { transform: translateX(-50%) translateY(-5px); }
}

/* ====================
   Services Section
   ==================== */
.services {
  background: var(--bg-card);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.service-card {
  background: var(--bg-card);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 2px 12px rgba(11, 19, 37, 0.06);
  transition: all var(--transition-base);
  border: 1px solid var(--border-subtle-dark);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-brand);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.service-card > * {
  position: relative;
  z-index: 1;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.service-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  border-radius: 16px;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.service-icon i {
  font-size: 1.625rem;
  color: var(--text-primary);
}

.service-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  color: var(--text-on-light);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.01em;
}

.service-card p {
  font-size: 0.9375rem;
  color: var(--text-muted-light);
  line-height: 1.7;
}

/* ====================
   Portfolio Section
   ==================== */
.portfolio {
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.portfolio::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(134, 74, 153, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.portfolio .section-tag { color: var(--accent-blue); }

.portfolio .section-header h2 {
  color: var(--text-primary);
}

.portfolio .section-header p {
  color: rgba(255, 255, 255, 0.65);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.portfolio-item {
  background: var(--bg-elevated);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition-base);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  border-color: var(--accent-purple);
  box-shadow: 0 20px 60px rgba(134, 74, 153, 0.25);
}

.portfolio-image {
  height: 220px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
}

.portfolio-image i {
  font-size: 3.5rem;
  color: rgba(255, 255, 255, 0.95);
}

.portfolio-info {
  padding: var(--spacing-md);
}

.portfolio-category {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 600;
  color: var(--accent-blue);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: var(--spacing-xs);
}

.portfolio-info h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
}

.portfolio-info p {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  line-height: 1.55;
}

/* ====================
   About Section
   ==================== */
.about {
  background: var(--bg-card);
}

.about-content {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
}

.about-image {
  position: relative;
}

.image-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--gradient-brand);
  border-radius: var(--border-radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.85);
  position: relative;
  overflow: hidden;
}

.image-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

.image-placeholder.portrait {
  padding: 6px;
  background: var(--gradient-brand);
}

.image-placeholder.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: calc(var(--border-radius-lg) - 4px);
  display: block;
  position: relative;
  z-index: 1;
}

.image-placeholder.portrait::after {
  background: linear-gradient(180deg, transparent 60%, rgba(11, 19, 37, 0.25) 100%);
  z-index: 2;
}

.image-placeholder i {
  font-size: 4rem;
  opacity: 0.7;
}

.image-placeholder span {
  font-size: 0.875rem;
  opacity: 0.85;
  font-weight: 500;
}

.about-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: var(--spacing-md);
  border-radius: var(--border-radius-md);
  text-align: center;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-subtle);
}

.badge-number {
  display: block;
  font-size: 2.25rem;
  font-weight: 800;
  line-height: 1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge-text {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.25rem;
  display: block;
}

.about-text h2 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-on-light);
  margin-bottom: var(--spacing-md);
  letter-spacing: -0.02em;
}

.about-text > p {
  font-size: 1rem;
  color: var(--text-muted-light);
  margin-bottom: var(--spacing-sm);
  line-height: 1.75;
}

.about-text > p strong {
  color: var(--text-on-light);
  font-weight: 600;
}

.about-features {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-sm);
  margin-top: var(--spacing-lg);
}

.feature {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 500;
  color: var(--text-on-light);
}

.feature i {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-size: 1.125rem;
}

/* ====================
   CTA Section
   ==================== */
.cta-section {
  background: var(--bg-primary);
  text-align: center;
  padding: var(--spacing-2xl) 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 50%, rgba(62, 129, 186, 0.20) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(134, 74, 153, 0.20) 0%, transparent 50%);
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  font-size: clamp(1.875rem, 4vw, 2.75rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.cta-content p {
  font-size: 1.125rem;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn-primary {
  background: var(--text-primary);
  color: var(--bg-primary);
  font-weight: 700;
}

.cta-section .btn-primary:hover {
  background: var(--text-primary);
  color: var(--accent-purple);
}

/* ====================
   Contact Section
   ==================== */
.contact {
  background: var(--bg-card);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--spacing-2xl);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-card);
  border-radius: var(--border-radius-md);
  border: 1px solid var(--border-subtle-dark);
  transition: all var(--transition-base);
}

.contact-item:hover {
  border-color: var(--accent-purple);
  transform: translateX(4px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-brand);
  border-radius: var(--border-radius-sm);
  flex-shrink: 0;
}

.contact-icon i {
  font-size: 1.125rem;
  color: var(--text-primary);
}

.contact-item h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-on-light);
  margin-bottom: 0.25rem;
}

.contact-item p {
  font-size: 0.875rem;
  color: var(--text-muted-light);
}

.contact-form {
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-lg);
}

.contact-form .form-group { margin-bottom: var(--spacing-md); }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.9375rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  background: var(--bg-elevated);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-purple);
  background: var(--bg-hover);
}

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

.form-group select {
  cursor: pointer;
  color: rgba(255, 255, 255, 0.6);
}

.form-group select option {
  background: var(--bg-elevated);
  color: var(--text-primary);
}

.contact-form .btn-primary {
  width: 100%;
  margin-top: var(--spacing-sm);
}

/* ====================
   Footer
   ==================== */
.footer {
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  border-top: 1px solid var(--border-subtle);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand img {
  height: 44px;
  margin-bottom: var(--spacing-sm);
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  line-height: 1.7;
  max-width: 280px;
}

.footer-links h4,
.footer-social h4 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}

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

.social-links {
  display: flex;
  gap: 0.625rem;
}

.social-links a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--border-radius-sm);
  color: rgba(255, 255, 255, 0.75);
  transition: all var(--transition-base);
}

.social-links a:hover {
  background: var(--gradient-brand);
  color: var(--text-primary);
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-subtle);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.45);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
}

/* ====================
   WhatsApp Float
   ==================== */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.75rem;
  box-shadow: 0 8px 24px rgba(37, 211, 102, 0.45);
  z-index: var(--z-whatsapp);
  transition: all var(--transition-base);
}

.whatsapp-float:hover {
  transform: scale(1.08) translateY(-2px);
  box-shadow: 0 12px 32px rgba(37, 211, 102, 0.55);
}

/* ====================
   Responsive
   ==================== */
@media (max-width: 1024px) {
  .about-content {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }

  .about-image {
    max-width: 380px;
    margin: 0 auto;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 67px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    flex-direction: column;
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
    border-bottom: 1px solid var(--border-subtle);
    transform: translateY(-150%);
    opacity: 0;
    transition: all var(--transition-base);
    pointer-events: none;
  }

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

  .menu-toggle {
    display: flex;
    cursor: pointer;
  }

  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-content { padding: 0; }

  .hero-text h1 { font-size: 2.5rem; }

  .hero-text p { font-size: 1rem; }

  .hero-cta { flex-direction: column; }

  .hero-cta .btn { width: 100%; }

  .services-grid,
  .portfolio-grid {
    grid-template-columns: 1fr;
  }

  .about-features {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-brand {
    margin-bottom: var(--spacing-md);
  }

  .social-links { justify-content: center; }

  .whatsapp-float {
    bottom: 18px;
    right: 18px;
    width: 54px;
    height: 54px;
  }
}

@media (max-width: 480px) {
  .section { padding: var(--spacing-xl) 0; }

  .section-header h2 { font-size: 1.75rem; }

  .service-card,
  .contact-form { padding: var(--spacing-md); }

  .btn-large {
    padding: 0.875rem 1.5rem;
    font-size: 0.9375rem;
  }
}

/* ====================
   Animations
   ==================== */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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