/* 
  DESIGN PHILOSOPHY: Minimalismo Acolhedor
  - Fundo branco limpo e profissional
  - Tipografia clara e legível
  - Espaçamento generoso para respiração visual
  - Cores neutras com acentos suaves
  - Foco em conversão e confiança
  - Experiência mobile-first
*/

:root {
  --primary-color: #2c3e50;
  --accent-color: #e8b4a8;
  --text-primary: #2c3e50;
  --text-secondary: #555555;
  --bg-primary: #ffffff;
  --bg-secondary: #f8f7f6;
  --border-color: #e0e0e0;
  --success-color: #27ae60;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  font-size: 16px;
}

/* HEADER & NAVIGATION */
header {
  background-color: var(--bg-primary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
}

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

.logo {
  width: 50px;
  height: 50px;
  object-fit: contain;
}

.header-text h1 {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--primary-color);
  letter-spacing: -0.5px;
}

.header-text p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 0.25rem;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: var(--transition);
  margin-left: var(--spacing-md);
}

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

/* HERO SECTION */
.hero {
  background-color: var(--bg-primary);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
  min-height: 70vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.hero-content {
  max-width: 700px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.8;
}

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

.btn {
  padding: 1rem 2rem;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 12px rgba(44, 62, 80, 0.2);
}

.btn-primary:hover {
  background-color: #1a252f;
  box-shadow: 0 6px 16px rgba(44, 62, 80, 0.3);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: var(--bg-secondary);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

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

.btn-small {
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
}

/* SECTION STYLES */
section {
  padding: var(--spacing-xl) var(--spacing-md);
  max-width: 1200px;
  margin: 0 auto;
}

section h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  text-align: center;
  letter-spacing: -0.5px;
}

section h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

section p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

/* IDENTIFICATION SECTION */
.identification {
  background-color: var(--bg-secondary);
}

.symptoms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.symptom-card {
  background-color: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: 12px;
  border-left: 4px solid var(--accent-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.symptom-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.symptom-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.symptom-card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* VIDEO SECTION */
.video-section {
  background-color: var(--bg-primary);
  text-align: center;
}

.video-intro {
  max-width: 700px;
  margin: 0 auto var(--spacing-lg);
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
}

.video-container {
  position: relative;
  width: 100%;
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  background-color: var(--bg-secondary);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.video-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f5f5f5 0%, #e8e8e8 100%);
  color: var(--text-secondary);
  font-size: 1rem;
}

.video-container iframe {
  width: 100%;
  height: 100%;
  border: none;
}

/* HOW IT WORKS SECTION */
.how-it-works {
  background-color: var(--bg-secondary);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.step {
  background-color: var(--bg-primary);
  padding: var(--spacing-lg);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  background-color: var(--accent-color);
  color: white;
  border-radius: 50%;
  font-weight: 700;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
}

.step h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.step p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* DOCUMENTATION SECTION */
.documentation {
  background-color: var(--bg-primary);
}

.doc-content {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: 12px;
  border-left: 4px solid var(--accent-color);
}

.doc-content h3 {
  margin-top: 0;
}

.doc-list {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.doc-list li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--text-secondary);
}

.doc-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--success-color);
  font-weight: 700;
}

/* ABOUT SECTION */
.about {
  background-color: var(--bg-secondary);
}

.about-content {
  max-width: 800px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.about-text h3 {
  margin-top: 0;
}

.about-highlights {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.about-highlights li {
  padding: var(--spacing-sm) 0;
  padding-left: var(--spacing-lg);
  position: relative;
  color: var(--text-secondary);
}

.about-highlights li:before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.5rem;
}

.about-image {
  width: 100%;
  max-width: 300px;
  margin: 0 auto;
  text-align: center;
}

.about-image img {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* FINAL CTA SECTION */
.final-cta {
  background-color: var(--primary-color);
  color: white;
  text-align: center;
  padding: var(--spacing-xl) var(--spacing-md);
}

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

.final-cta p {
  color: rgba(255, 255, 255, 0.9);
  max-width: 600px;
  margin: 0 auto var(--spacing-lg);
  font-size: 1.1rem;
}

.final-cta .btn-primary {
  background-color: white;
  color: var(--primary-color);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

/* INITIAL CONVERSATION SECTION */
.initial-conversation {
  background-color: var(--bg-secondary);
  text-align: center;
  padding: var(--spacing-lg) var(--spacing-md);
}

.initial-conversation h3 {
  margin-top: 0;
  font-size: 1.3rem;
}

.initial-conversation p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-md);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.btn-conversation {
  background-color: transparent;
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  padding: 0.75rem 1.5rem;
  font-size: 0.95rem;
}

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

/* FOOTER */
footer {
  background-color: var(--primary-color);
  color: white;
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  font-size: 0.9rem;
}

footer p {
  color: rgba(255, 255, 255, 0.8);
  margin-bottom: var(--spacing-sm);
}

footer a {
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: var(--transition);
}

footer a:hover {
  color: white;
}

/* RESPONSIVE DESIGN */
@media (max-width: 768px) {
  .header-container {
    padding: var(--spacing-md) var(--spacing-sm);
  }

  nav a {
    margin-left: var(--spacing-sm);
    font-size: 0.85rem;
  }

  .hero {
    padding: var(--spacing-lg) var(--spacing-sm);
    min-height: 60vh;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

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

  .cta-buttons {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .btn {
    width: 100%;
    max-width: 300px;
  }

  section {
    padding: var(--spacing-lg) var(--spacing-sm);
  }

  section h2 {
    font-size: 1.5rem;
  }

  .symptoms-grid,
  .process-steps {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

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

  .about-image {
    order: -1;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 14px;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  section h2 {
    font-size: 1.3rem;
  }

  .btn {
    padding: 0.875rem 1.5rem;
    font-size: 0.95rem;
  }

  .symptom-card,
  .step,
  .doc-content {
    padding: var(--spacing-md);
  }
}

/* ACCESSIBILITY */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* PRINT STYLES */
@media print {
  header,
  footer,
  .cta-buttons {
    display: none;
  }
}


/* TESTIMONIALS SECTION */
.testimonials {
  background-color: var(--bg-primary);
  padding: var(--spacing-xl) var(--spacing-md);
}

.testimonials h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.testimonial-card {
  background-color: var(--bg-secondary);
  padding: var(--spacing-lg);
  border-radius: 12px;
  border-left: 4px solid var(--accent-color);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
  transform: translateY(-4px);
}

.testimonial-card .stars {
  color: #ffc107;
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
}

.testimonial-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--spacing-sm);
  line-height: 1.6;
}

.testimonial-author {
  font-weight: 600;
  color: var(--primary-color);
  font-size: 0.9rem !important;
}

/* DOCUMENTATION ITEMS */
.doc-items {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-lg) 0;
}

.doc-item {
  background-color: var(--bg-primary);
  padding: var(--spacing-md);
  border-radius: 8px;
  border-left: 3px solid var(--accent-color);
}

.doc-item h5 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
  margin-top: 0;
}

.doc-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 0;
  line-height: 1.6;
}

/* COURSES SECTION */
.courses {
  background-color: var(--bg-secondary);
  padding: var(--spacing-xl) var(--spacing-md);
}

.courses h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.course-card {
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--bg-primary);
  padding: var(--spacing-xl);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.course-card h3 {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
  margin-top: 0;
}

.course-card h4 {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: var(--spacing-md);
  margin-bottom: var(--spacing-sm);
}

.course-card > p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

/* SOCIAL LINKS */
.social-links {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--bg-secondary);
  transition: var(--transition);
  text-decoration: none;
}

.social-links a:hover {
  background-color: var(--primary-color);
  color: white;
}

.social-links svg {
  width: 24px;
  height: 24px;
}

/* RESPONSIVE ADJUSTMENTS FOR NEW SECTIONS */
@media (max-width: 768px) {
  .about-content {
    grid-template-columns: 1fr;
  }

  .about-image {
    order: -1;
  }

  .about-image img {
    width: 150px;
    height: 150px;
  }

  .course-card {
    padding: var(--spacing-lg);
  }

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

  .doc-items {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .course-card h3 {
    font-size: 1.3rem;
  }

  .about-image img {
    width: 120px;
    height: 120px;
  }

  .testimonial-card {
    padding: var(--spacing-md);
  }

  .doc-item {
    padding: var(--spacing-sm);
  }
}