/* ===== CSS RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color System - Monochromatic with subtle accents */
  --color-primary: #0A0A0A;
  --color-primary-light: #1A1A1A;
  --color-accent: #FFF200;
  --color-accent-hover: #E6DA00;
  --color-accent-light: #FFFF33;
  --color-text-primary: #0A0A0A;
  --color-text-secondary: #666666;
  --color-text-light: #999999;
  --color-background: #FFFFFF;
  --color-surface: #FAFAFA;
  --color-border: #E5E5E5;
  --color-success: #4CAF50;
  --color-error: #f44336;
  --color-warning: #666666;

  /* Spacing System (8px base) */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  --spacing-xl: 48px;
  --spacing-2xl: 64px;
  --spacing-3xl: 96px;

  /* Typography */
  --font-family: 'Figtree', sans-serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;

  /* Line Heights */
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 99px;
  --radius-lg: 12px;
  --radius-xl: 99px;

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
}

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-background);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

p {
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
}

.lead {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  font-weight: 500;
}

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

section {
  padding: var(--spacing-3xl) 0;
}

/* ===== BUTTONS ===== */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-size: var(--font-size-base);
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: 99px;
  cursor: pointer;
  transition: all var(--transition-base);
  font-family: var(--font-family);
}

.btn-primary {
  background-color: var(--color-accent);
  color: #0A0A0A;
  box-shadow: none;
  font-weight: 600;
}

.btn-primary:hover {
  background-color: var(--color-accent-hover);
  color: #0A0A0A;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.16);
}

.btn-secondary {
  background-color: white;
  color: var(--color-text-primary);
  border: 2px solid var(--color-text-primary);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  font-weight: 600;
}

.btn-secondary:hover {
  background-color: var(--color-text-primary);
  color: white;
  border-color: var(--color-text-primary);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.btn-lg {
  padding: 16px 40px;
  font-size: var(--font-size-lg);
  gap: 12px;
}

.btn-block {
  width: 100%;
}

/* ===== NAVIGATION ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

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

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

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  font-size: calc(var(--font-size-xl) * 1.5);
  font-weight: 700;
  color: var(--color-text-primary);
  transition: opacity var(--transition-base);
}

.logo-ext {
  background-color: rgb(255, 242, 0);
  color: #0A0A0A;
  font-weight: 700;
  font-size: 21px;
  padding: 6px 12px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  margin-left: 6px;
}

.logo:hover {
  opacity: 0.8;
}

.footer .logo {
  color: white;
}

.footer .logo .logo-ext {
  background-color: rgb(255, 242, 0);
  color: #0A0A0A;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  list-style: none;
}

.nav-menu a {
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
  position: relative;
}

.nav-menu .nav-link {
  color: var(--color-text-secondary);
}

.nav-menu .nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: width var(--transition-base);
}

.nav-menu .nav-link:hover {
  color: var(--color-text-primary);
}

.nav-menu .nav-link:hover::after {
  width: 100%;
}

.nav-menu .btn-primary {
  background-color: #ffffff;
  color: #0A0A0A;
  padding: 10px 28px;
  font-size: var(--font-size-base);
  font-weight: 600;
  box-shadow: none;
  border: 1px solid #0A0A0A;
}

.nav-menu .btn-primary:hover {
  background-color: #f5f5f5;
  color: #0A0A0A;
  transform: translateY(-1px);
  box-shadow: none;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-btn span {
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  transition: all var(--transition-base);
}

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

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('https://images.pexels.com/photos/3184287/pexels-photo-3184287.jpeg?auto=compress&cs=tinysrgb&w=1920');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 10, 10, 0.88) 0%, rgba(42, 42, 42, 0.82) 100%);
  z-index: -1;
}

.hero-overlay::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 20s ease-in-out infinite;
}

.hero-overlay::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  border-radius: 50%;
  animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(30px, -30px) scale(1.1); }
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero-subtitle {
  display: block;
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: var(--spacing-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero-title {
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 0.8s ease-out;
  color: white;
}

.hero-description {
  font-size: var(--font-size-xl);
  line-height: var(--line-height-relaxed);
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: var(--spacing-xl);
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.4s both;
  margin-bottom: var(--spacing-xl);
}

.clients-logos {
  margin-top: var(--spacing-2xl);
  overflow: hidden;
  animation: fadeInUp 0.8s ease-out 0.6s both;
}

.logos-track {
  display: flex;
  gap: var(--spacing-xl);
  animation: scrollLogos 30s linear infinite;
  width: max-content;
}

.logo-item {
  flex-shrink: 0;
  width: 180px;
  height: 80px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm);
  transition: all var(--transition-base);
}

.logo-item:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.3);
}

.logo-item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.9;
  transition: opacity var(--transition-base);
}

.logo-item:hover img {
  opacity: 1;
}

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

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

.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  width: 30px;
  height: 50px;
  border: 2px solid rgba(255, 255, 255, 0.5);
  border-radius: 20px;
  opacity: 0.8;
}

.scroll-indicator span {
  position: absolute;
  top: 8px;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  background-color: rgba(255, 255, 255, 0.8);
  border-radius: 50%;
  animation: scroll 2s infinite;
}

@keyframes scroll {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(20px);
  }
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
}

.section-title {
  margin-bottom: var(--spacing-sm);
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: var(--color-text-primary);
  border-radius: 2px;
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

/* ===== SERVICES SECTION ===== */
.services {
  background-color: var(--color-background);
  overflow: hidden;
}

.services-slider-container {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.services-slider {
  flex: 1;
  overflow: hidden;
  padding: var(--spacing-sm) 0;
}

.services-track {
  display: flex;
  gap: var(--spacing-lg);
  transition: transform 0.5s ease;
  will-change: transform;
}

.service-card {
  flex: 0 0 calc(33.333% - 22px);
  padding: var(--spacing-xl);
  background: #F9FAFB;
  border: 1px solid #E5E7EB;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.slider-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: #E5E7EB;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
  z-index: 10;
  box-shadow: none;
}

.slider-btn:hover {
  background: #D1D5DB;
  transform: scale(1.05);
  box-shadow: none;
}

.slider-btn:hover svg {
  color: #374151;
}

.slider-btn svg {
  width: 20px;
  height: 20px;
  color: #6B7280;
  transition: color var(--transition-base);
}

.slider-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  background: #E5E7EB;
}

.slider-btn:disabled:hover {
  background: #E5E7EB;
  transform: scale(1);
  box-shadow: none;
}

.slider-btn:disabled:hover svg {
  color: #6B7280;
}

.slider-dots {
  display: flex;
  justify-content: center;
  gap: var(--spacing-xs);
  margin-top: var(--spacing-lg);
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-border);
  cursor: pointer;
  transition: all var(--transition-base);
}

.slider-dot.active {
  background: var(--color-accent);
  width: 24px;
  border-radius: 5px;
}

.slider-dot:hover {
  background: var(--color-accent);
  opacity: 0.7;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-text-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: var(--color-accent);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  transition: all var(--transition-base);
  border: 1px solid var(--color-accent);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(5deg);
  background: var(--color-accent-hover);
}

.service-icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-text-primary);
}

.service-card h3 {
  margin-bottom: var(--spacing-sm);
  color: var(--color-text-primary);
}

.service-card p {
  line-height: var(--line-height-relaxed);
}

/* ===== PROCESS SECTION ===== */
.process {
  background: linear-gradient(180deg, var(--color-surface) 0%, white 100%);
}

.process-timeline {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 30px;
  top: 40px;
  bottom: 40px;
  width: 2px;
  background: var(--color-border);
}

.process-step {
  display: flex;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  position: relative;
  opacity: 0;
  transform: translateX(-30px);
  animation: slideInLeft 0.6s ease-out forwards;
}

.process-step:nth-child(1) { animation-delay: 0.1s; }
.process-step:nth-child(2) { animation-delay: 0.2s; }
.process-step:nth-child(3) { animation-delay: 0.3s; }
.process-step:nth-child(4) { animation-delay: 0.4s; }

@keyframes slideInLeft {
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.step-number {
  flex-shrink: 0;
  width: 60px;
  height: 60px;
  background: var(--color-accent);
  color: var(--color-text-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  position: relative;
  z-index: 1;
}

.step-content {
  flex: 1;
  padding: var(--spacing-sm) 0;
}

.step-content h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-text-primary);
}

.step-content p {
  line-height: var(--line-height-relaxed);
}

/* ===== ABOUT SECTION ===== */
.about {
  position: relative;
  color: white;
  overflow: hidden;
}

.about-background {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('https://images.pexels.com/photos/3183150/pexels-photo-3183150.jpeg?auto=compress&cs=tinysrgb&w=1920');
  background-size: cover;
  background-position: center;
  z-index: -2;
}

.about-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(10, 10, 10, 0.92) 0%, rgba(26, 26, 26, 0.88) 100%);
  z-index: -1;
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}

.about-text h2 {
  color: white;
  margin-bottom: var(--spacing-md);
}

.about-text p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-md);
}

.about-text .lead {
  color: rgba(255, 255, 255, 0.95);
  font-size: var(--font-size-xl);
}

.about-stats {
  display: grid;
  gap: var(--spacing-md);
}

.stat-card {
  background: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: all var(--transition-base);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.stat-card:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.stat-number {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  color: white;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-base);
}

/* ===== CONTACT SECTION ===== */
.contact {
  background: linear-gradient(180deg, white 0%, var(--color-surface) 100%);
}

.contact-content-centered {
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contact-content-centered h2 {
  margin-bottom: var(--spacing-md);
  font-size: 2.5rem;
}

.contact-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-xl);
  color: var(--color-text-secondary);
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 18px 36px;
  background: #25D366;
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  transition: all var(--transition-base);
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
  margin-bottom: var(--spacing-xl);
}

.btn-whatsapp:hover {
  background: #20BA5A;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

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

.btn-whatsapp svg {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  align-items: center;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-secondary);
}

.contact-item svg {
  width: 24px;
  height: 24px;
  color: var(--color-text-primary);
  flex-shrink: 0;
}

.contact-form {
  background: #F5F5F5;
  padding: var(--spacing-xl);
  border-radius: 16px;
  box-shadow: none;
  border: none;
}

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

.form-group label {
  display: block;
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}

.form-group label .required {
  color: #FF6B00;
  margin-left: 2px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: none;
  border-radius: 8px;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  background-color: #EBEBEB;
  color: #999999;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #AAAAAA;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  background-color: #E5E5E5;
  color: var(--color-text-primary);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23999999' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 20px;
  padding-right: 40px;
  cursor: pointer;
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-disclaimer {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-align: center;
  margin-top: var(--spacing-md);
  line-height: 1.5;
}

.form-message {
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--font-size-base);
  line-height: 1.5;
  border-left: 4px solid;
  animation: slideDown 0.3s ease-out;
}

.form-message-success {
  background-color: #e8f5e9;
  border-color: var(--color-success);
  color: #1b5e20;
}

.form-message-error {
  background-color: #ffebee;
  border-color: var(--color-error);
  color: #b71c1c;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideUp {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-20px);
  }
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

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

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

.footer-brand p {
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--line-height-relaxed);
}

.footer-links h4 {
  color: white;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials {
  background: linear-gradient(180deg, var(--color-surface) 0%, white 100%);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

.testimonial-card {
  background: white;
  padding: var(--spacing-xl);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.testimonial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.testimonial-content {
  flex: 1;
}

.testimonial-content p {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  font-style: italic;
  position: relative;
  padding-left: var(--spacing-md);
}

.testimonial-content p::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -10px;
  font-size: 3rem;
  color: var(--color-text-primary);
  opacity: 0.3;
  font-family: Georgia, serif;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.author-avatar {
  flex-shrink: 0;
}

.author-avatar img {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.author-info {
  flex: 1;
}

.author-name {
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: 4px;
}

.author-position {
  font-size: var(--font-size-sm);
  color: var(--color-text-light);
  line-height: 1.4;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 968px) {
  :root {
    --font-size-5xl: 2.25rem;
    --font-size-4xl: 1.875rem;
    --font-size-3xl: 1.5rem;
  }

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

  .about-content,
  .footer-content {
    grid-template-columns: 1fr;
  }

  .contact-content-centered h2 {
    font-size: 2rem;
  }

  .process-timeline::before {
    left: 20px;
  }

  .step-number {
    width: 50px;
    height: 50px;
    font-size: var(--font-size-lg);
  }

  .service-card {
    flex: 0 0 calc(50% - 16px);
  }

  .slider-btn {
    width: 40px;
    height: 40px;
  }

  .slider-btn svg {
    width: 20px;
    height: 20px;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background-color: white;
    flex-direction: column;
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    transform: translateX(-100%);
    transition: transform var(--transition-base);
  }

  .nav-menu.active {
    transform: translateX(0);
  }

  .mobile-menu-btn {
    display: flex;
  }

  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }

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

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

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

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

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

  /* Mobile slider improvements */
  .services-slider-container {
    flex-direction: row;
    gap: 0;
    position: relative;
    padding: 0;
  }

  .services-slider {
    width: 100%;
    order: 1;
    padding: var(--spacing-sm) 0;
    overflow: visible;
  }

  .services-track {
    gap: var(--spacing-md);
    padding: 0;
  }

  .service-card {
    flex: 0 0 85vw;
    max-width: 85vw;
  }

  .slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 20;
  }

  .slider-btn-prev {
    left: 8px;
  }

  .slider-btn-next {
    right: 8px;
  }

  .slider-btn svg {
    width: 18px;
    height: 18px;
  }

  .slider-dots {
    margin-top: var(--spacing-lg);
  }

  .process-timeline::before {
    display: none;
  }

  .process-step {
    flex-direction: column;
    text-align: center;
  }

  .step-number {
    margin: 0 auto;
  }
}

@media (max-width: 480px) {
  :root {
    --font-size-5xl: 1.875rem;
    --font-size-4xl: 1.5rem;
  }

  .container {
    padding: 0 var(--spacing-sm);
  }

  .nav-content {
    height: 70px;
  }

  .logo {
    font-size: var(--font-size-xl);
  }

  .hero {
    padding-top: 70px;
  }

  .btn-whatsapp {
    padding: 16px 28px;
    font-size: 1rem;
  }

  .btn-whatsapp svg {
    width: 28px;
    height: 28px;
  }
}

/* ===== WHATSAPP FLOATING BUTTON ===== */
.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;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: all var(--transition-base);
  text-decoration: none;
  animation: pulse-whatsapp 2s ease-in-out infinite;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6);
}

.whatsapp-float svg {
  width: 60px;
  height: 60px;
}

@keyframes pulse-whatsapp {
  0%, 100% {
    box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  }
  50% {
    box-shadow: 0 4px 24px rgba(37, 211, 102, 0.7);
  }
}

@media (max-width: 768px) {
  .whatsapp-float {
    width: 56px;
    height: 56px;
    bottom: 20px;
    right: 20px;
  }

  .whatsapp-float svg {
    width: 56px;
    height: 56px;
  }
}