/* Paleta de cores do ApresentAI */
:root {
  --primary: #4361ee;      /* Azul principal - representa tecnologia e inovação */
  --secondary: #3a0ca3;    /* Roxo escuro - representa criatividade e sofisticação */
  --accent: #7209b7;       /* Roxo vibrante - para elementos de destaque */
  --highlight: #f72585;    /* Rosa vibrante - para call-to-action */
  --light: #f8f9fa;        /* Branco suave - para fundos claros */
  --dark: #212529;         /* Preto suave - para textos */
  --gray: #6c757d;         /* Cinza - para textos secundários */
  --success: #4cc9f0;      /* Azul claro - para mensagens de sucesso */
  --warning: #ffbe0b;      /* Amarelo - para alertas */
  --danger: #e63946;       /* Vermelho - para erros */
  --gradient: linear-gradient(90deg, var(--primary), var(--accent)); /* Gradiente para elementos especiais */
}

/* Reset e estilos base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Poppins', sans-serif;
  color: var(--dark);
  line-height: 1.6;
  background-color: var(--light);
}

/* Tipografia */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  margin-bottom: 1rem;
  line-height: 1.2;
}

h1 {
  font-size: 3.5rem;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

h2 {
  font-size: 2.5rem;
  color: var(--secondary);
}

h3 {
  font-size: 2rem;
  color: var(--primary);
}

p {
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

/* Container e grid */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -1rem;
}

.col {
  flex: 1;
  padding: 0 1rem;
}

/* Botões */
.btn {
  display: inline-block;
  padding: 0.8rem 1.5rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1rem;
}

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

.btn-primary:hover {
  background: var(--secondary);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

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

.btn-accent:hover {
  background: var(--secondary);
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.btn-cta {
  background: var(--highlight);
  color: white;
  font-size: 1.2rem;
  padding: 1rem 2rem;
}

.btn-cta:hover {
  background: #d91a75;
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.15);
}

/* Header e navegação */
header {
  padding: 1.5rem 0;
  background-color: white;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  list-style: none;
}

.nav-links li {
  margin-left: 2rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--dark);
  font-weight: 600;
  transition: color 0.3s ease;
}

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

/* Hero section */
.hero {
  padding: 8rem 0 5rem;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

.hero-content {
  max-width: 600px;
}

.hero-title {
  margin-bottom: 1.5rem;
}

.hero-subtitle {
  font-size: 1.5rem;
  margin-bottom: 2rem;
  color: var(--gray);
}

/* Features section */
.features {
  padding: 5rem 0;
  background-color: white;
}

.feature-card {
  background: white;
  border-radius: 10px;
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1.5rem;
  color: var(--primary);
}

/* How it works section */
.how-it-works {
  padding: 5rem 0;
  background-color: #f8f9fa;
}

.step {
  display: flex;
  align-items: center;
  margin-bottom: 3rem;
}

.step-number {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: var(--gradient);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 700;
  margin-right: 2rem;
  flex-shrink: 0;
}

/* Pricing section */
.pricing {
  padding: 5rem 0;
  background-color: white;
}

.price-card {
  background: white;
  border-radius: 10px;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease;
  border: 2px solid transparent;
}

.price-card:hover {
  transform: scale(1.05);
  border-color: var(--primary);
}

.price-card.featured {
  border-color: var(--highlight);
  position: relative;
}

.price-card.featured::before {
  content: "Mais Popular";
  position: absolute;
  top: -15px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--highlight);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
}

.price {
  font-size: 3rem;
  font-weight: 700;
  color: var(--primary);
  margin: 1.5rem 0;
}

.price-card ul {
  list-style: none;
  margin: 2rem 0;
}

.price-card li {
  margin-bottom: 1rem;
}

/* Testimonials section */
.testimonials {
  padding: 5rem 0;
  background-color: #f8f9fa;
}

.testimonial-card {
  background: white;
  border-radius: 10px;
  padding: 2rem;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
  margin-bottom: 2rem;
}

.testimonial-text {
  font-style: italic;
  margin-bottom: 1.5rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
}

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  margin-right: 1rem;
  object-fit: cover;
}

.testimonial-name {
  font-weight: 600;
}

.testimonial-position {
  color: var(--gray);
  font-size: 0.9rem;
}

/* CTA section */
.cta {
  padding: 5rem 0;
  background: var(--gradient);
  color: white;
  text-align: center;
}

.cta h2 {
  color: white;
  margin-bottom: 2rem;
}

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

.cta .btn:hover {
  background: var(--light);
  color: var(--accent);
}

/* Footer */
footer {
  padding: 4rem 0 2rem;
  background-color: var(--dark);
  color: white;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}

.footer-column {
  flex: 1;
  min-width: 200px;
  margin-bottom: 2rem;
}

.footer-column h3 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

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

.footer-column li {
  margin-bottom: 0.8rem;
}

.footer-column a {
  color: #adb5bd;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* Form styles */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

input, textarea, select {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid #ced4da;
  border-radius: 5px;
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--primary);
}

/* Card para o formulário de criação de apresentação */
.create-form-card {
  background: white;
  border-radius: 15px;
  padding: 3rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  max-width: 600px;
  margin: 0 auto;
}

/* Animações */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate {
  animation: fadeIn 0.8s ease forwards;
}

/* Responsividade */
@media (max-width: 992px) {
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2.2rem;
  }
  
  .row {
    flex-direction: column;
  }
  
  .col {
    margin-bottom: 2rem;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .navbar {
    flex-direction: column;
  }
  
  .nav-links {
    margin-top: 1rem;
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .nav-links li {
    margin: 0.5rem 1rem;
  }
  
  .hero {
    padding: 7rem 0 4rem;
    text-align: center;
  }
  
  .hero-content {
    margin: 0 auto;
  }
}

@media (max-width: 576px) {
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.8rem;
  }
  
  .btn {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
  }
  
  .feature-card, .price-card, .testimonial-card {
    padding: 1.5rem;
  }
}