:root {
  --black: #000000;
  --white: #ffffff;
  --gray-100: #f5f5f5;
  --gray-200: #eeeeee;
  --gray-300: #e0e0e0;
  --gray-400: #bdbdbd;
  --gray-500: #9e9e9e;
  --gray-600: #757575;
  --gray-700: #616161;
  --gray-800: #424242;
  --gray-900: #212121;
  
  --primary: var(--black);
  --secondary: var(--white);
  --accent: #333333;
  
  --container-width: 1200px;
  --header-height: 80px;
  
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
  
  --radius: 8px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--white);
  color: var(--black);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  hyphens: auto;
}

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

ul {
  list-style: none;
}

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 16px;
  }
}

/* Reusable Components */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: var(--transition-normal);
  border: 1px solid transparent;
}

.btn-primary {
  background-color: var(--black);
  color: var(--white);
}

.btn-primary:hover {
  background-color: #333;
  transform: translateY(-2px);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--black);
  color: var(--black);
}

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

.btn-white {
  background-color: var(--white);
  color: var(--black);
}

.btn-white:hover {
  background-color: var(--gray-100);
  transform: translateY(-2px);
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--gray-200);
  transition: var(--transition-normal);
}

header.scrolled {
  height: 70px;
  box-shadow: var(--shadow);
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.1em;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--gray-600);
}

.nav-links a:hover, .nav-links a.active {
  color: var(--black);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

/* Sections */
section {
  padding: 100px 0;
}

.section-header {
  margin-bottom: 60px;
  text-align: center;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--gray-600);
  max-width: 600px;
  margin: 0 auto;
}

/* Card Styles */
.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition-normal);
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
  border-color: var(--black);
}

.card-img {
  height: 240px;
  background-color: var(--gray-100);
  position: relative;
  overflow: hidden;
}

.card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: var(--transition-slow);
}

@media (max-width: 768px) {
  .card-img {
    height: auto;
    aspect-ratio: 4 / 5;
  }
}

.card:hover .card-img img {
  transform: scale(1.1);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cards-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

.card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card-content {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-text {
  flex-grow: 1;
  margin-bottom: 20px;
}

.card-title {
  font-size: 1.2rem;
  margin-bottom: 12px;
}

.card-text {
  color: var(--gray-600);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

/* FAQ Accordion */
.faq-item {
  border-bottom: 1px solid var(--gray-200);
  padding: 20px 0;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 1rem;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
  color: var(--gray-600);
  padding-top: 0;
}

.faq-item.active .faq-answer {
  max-height: 200px;
  padding-top: 20px;
}

.faq-icon {
  transition: transform 0.3s;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

/* Footer */
footer {
  background-color: var(--black);
  color: var(--white);
  padding: 80px 0 40px;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-logo {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 20px;
  display: block;
}

.footer-desc {
  color: var(--gray-400);
  max-width: 300px;
}

.footer-title {
  font-size: 1rem;
  margin-bottom: 24px;
  color: var(--white);
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--gray-400);
  font-size: 0.9rem;
}

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

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--gray-500);
}

.social-icons {
  display: flex;
  gap: 20px;
}

.social-icons a svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background-color: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  z-index: 999;
  transition: var(--transition-normal);
}

.whatsapp-float:hover {
  transform: scale(1.1);
  background-color: #128c7e;
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: white;
}

/* Animations */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

/* Mobile Menu */
.mobile-toggle {
  display: none;
  cursor: pointer;
}

@media (max-width: 992px) {
  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  
  .nav-links {
    display: none;
  }
  
  .mobile-toggle {
    display: block;
  }
}

/* Mobile Layout Optimizations */
@media (max-width: 768px) {
    section {
        padding: 60px 0;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    /* Page Hero Mobile */
    .page-hero {
        padding: 80px 16px 40px !important;
        min-height: auto !important;
        display: flex;
        flex-direction: column;
        justify-content: center;
        text-align: center;
        position: relative;
        background: #fff !important;
    }

    .page-hero::before {
        display: none;
    }

    .page-hero .container {
        position: relative;
        z-index: 2;
    }

    .page-hero h1 {
        font-size: 2rem !important;
        margin-bottom: 15px;
        line-height: 1.1;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    .section-header h2 {
        font-size: 1.8rem;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    h2 {
        font-size: 1.8rem !important;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    /* Extra small devices polish */
    @media (max-width: 480px) {
        .container {
            padding: 0 15px !important;
        }
        .page-hero h1 {
            font-size: 1.7rem !important;
        }
        h2 {
            font-size: 1.5rem !important;
        }
        .hero-actions .btn {
            width: 100%;
        }
    }

    @media (max-width: 360px) {
        .page-hero h1 {
            font-size: 1.5rem !important;
        }
        .header-container {
            flex-direction: column;
            gap: 10px;
        }
        .header-actions {
            width: 100%;
            justify-content: center;
        }
    }

    .hero-image {
        margin-top: 40px;
        order: 2;
    }

    .hero-image img {
        aspect-ratio: 4 / 3;
        object-fit: cover;
    }

    .hero-actions {
        justify-content: center;
        flex-direction: column;
    }

    /* Individual Product Previews */
    .model-preview-img {
        height: auto !important;
        aspect-ratio: 4 / 5;
        border-radius: 10px;
    }

    .model-preview-img img {
        object-fit: cover;
        object-position: center;
    }

    .cta-box-wrapper h2 {
        font-size: 1.8rem;
    }

    /* Cards adjustments */
    .cards-grid {
        grid-template-columns: 1fr !important;
    }

    .specific-request-card .card-content {
        padding: 24px !important;
        flex-direction: column;
        text-align: center;
    }

    .specific-request-card .btn {
        width: 100%;
    }
}

/* Model Pages Styling */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-600);
    margin-bottom: 24px;
    letter-spacing: 0.1em;
}

.back-link:hover {
    color: var(--black);
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .models-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.model-card {
    background: #fff;
    border: 1px solid #eee;
    padding: 32px;
    transition: var(--transition-normal);
}

.model-card:hover {
    border-color: #000;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}

/* Layout Grid Containers */
.hero-grid-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
    align-items: center;
}

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

/* Base Responsive Grid Class */
.responsive-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

@media (max-width: 768px) {
    .hero-grid-container, 
    .objective-grid-container,
    .responsive-grid-2 {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
}

.model-card-img {
    width: 100%;
    height: 200px;
    background-color: #f5f5f5;
    margin-bottom: 24px;
    overflow: hidden;
    border: 1px solid #eee;
}

.model-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.model-card:hover .model-card-img img {
    transform: scale(1.05);
}

.model-card h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
}

.model-card p {
    color: #666;
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.model-card .ver-detalhes {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* Checkmark Lists */
.check-list {
    margin-bottom: 30px;
}

.check-list h4 {
    font-size: 1rem;
    margin-bottom: 15px;
    text-transform: none;
}

.check-list ul {
    list-style: none;
    padding: 0;
}

.check-list li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
    color: #555;
    font-size: 0.9rem;
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    top: 0;
    font-weight: 700;
    color: #000;
    font-size: 0.8rem;
}

/* Individual Product Components */
.model-detail-container {
    max-width: 800px;
    margin: 0 auto;
}

.model-preview-img {
    width: 100%;
    height: 450px;
    background-color: #f5f5f5;
    border-radius: 15px;
    margin-bottom: 40px;
    overflow: hidden;
    border: 1px solid #eee;
}

.model-preview-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.model-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    margin-top: 60px;
}

@media (max-width: 768px) {
    .model-actions {
        flex-direction: column;
        align-items: stretch;
    }
    
    .model-actions .btn {
        width: 100%;
        text-align: center;
    }
}

.cta-box-wrapper {
    background-color: #000;
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.cta-box-wrapper h2 {
    font-size: 2.2rem;
    margin-bottom: 15px;
}

.cta-box-wrapper p {
    color: #aaa;
    margin-bottom: 40px;
}

.cta-box-wrapper .btn-outline {
    border-color: #fff;
    color: #fff;
}

.cta-box-wrapper .btn-outline:hover {
    background-color: #fff;
    color: #000;
}