:root {
  --primary: #00e1ff;
  --secondary: #9b1aff;
  --bg-dark: #0a0a0a;
  --bg-card: #111111;
  --text: #ffffff;
  --text-light: rgba(255, 255, 255, 0.7);
  --border-color: rgba(0, 225, 255, 0.2);
  --text-dark: rgb(0, 66, 75);
  --text-darker: rgb(0, 25, 28);
  --radius: 8px;
  --shadow: 0 12px 20px rgba(0, 225, 255, 0.15);
  --gradient: linear-gradient(135deg, #00e1ff, #9b1aff);
  --tertiary: #7e57c2;
  --tertiary-invert: #5d22c4;
  --black: #121212;
  --dark-gray: #1e1e1e;
}

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

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

/* Header Style */

header {
  position: fixed;
  background-color: rgba(255, 255, 255, 0.010);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.4rem 1rem;
  flex-wrap: wrap;
  z-index: 9;
  width: 100%;
}

.logo-header {
  height: 60px;
}

nav {
  display: flex;
  gap: 1rem;
  font-size: 1.2rem;
}

nav a {
  color: var(--text);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

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

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1.4rem;;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.btn-primary {
  background: var(--secondary);
  color: var(--text);
  padding: 20px 50px;
  padding: 1.25rem 3rem;
}

.btn-primary a{
  text-decoration: none;
  color: var(--text);
}

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

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

.btn-outline:hover {
  background: var(--primary);
  color: var(--bg-dark);
}

@media (max-width: 500px) {
  .btn-primary {
    padding: 20px 40px;
    font-size: 1.15rem;
  }
}

.container {
  max-width: 1200px;
  margin: auto;
}

/* Features Section */
.catalogo {
  padding: 6rem 0;
  background: radial-gradient(circle at center, rgba(0, 225, 255, 0.1) 0%, transparent 70%);
}

.catalogo-header {
  text-align: center;
  margin-bottom: 3rem;
}

.product-content-header {
  text-align: start;
  margin-left: 1rem;
  display: flex;
  align-items: baseline;
  gap: 20px;
}

.catalogo-header h2, .product h3, .product-content-header h2 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  background: var(--gradient);
  background-clip: inherit;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.product h3 {
  text-align: center;
  margin-bottom: 0.5rem;
  font-size: 2rem;
}

.product-link {
  text-decoration: none;
  color: var(--text-light);
}

.catalogo-header p {
  color: var(--text-light);
  max-width: 900px;
  margin: 0 auto;
  font-size: 1.2rem;
}

.product h4 {
  font-size: 1.8rem;
  color: var(--primary);
}

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

.product-bottom button {
  padding: 15px;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 10px;
  border: 1px solid var(--primary);
  color: var(--text);
  background-color: var(--text-darker);
  cursor: pointer;
}

.product p {
  margin: 5px;
}

.catalogo-list {
  display: flex;
  gap: 4.5rem;
  margin: auto;
  flex-direction: row;
  width: 100%;
  align-items: center;
  justify-content: center;
}

.product-card{
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  transition: all 0.3s ease;
  background-position: center;
  background-size: contain;
  background-repeat: no-repeat;
  height: 380px;
  width: 380px;
  cursor: pointer;
}

.product {
  max-width: 380px;
}

#digital-pro {
  background-image: url('../assets/digital-pro-product.webp');
}

#biblioteca-w3b{
  background-image: url('../assets/biblioteca-w3b.webp');
}

.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
  border-color: var(--primary);
}

.footer-content {
  padding: 20px 20px 20px 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.footer-content p{
  font-size: 1.2em;
}

.activation {
  text-align: center;
  height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, var(--bg-dark), #0c1015);
  position: relative;
  overflow: hidden;
  margin: auto;
  flex-direction: row;
  justify-content: center;
}

.activation-form {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 60px;
  border-radius: 20px;
  margin-top: 50px;
  max-width: 500px;
  border: solid 1px var(--secondary);
}

.activation-form input[type="text"] {
  padding: 20px;
  font-size: 1.2em;
  border-radius: 20px;
  border: none;
  outline: none;
  width: 85%;
  border: 2px solid var(--bg-card);
  margin-bottom: 40px;
}

.activation-form input[type="text"]:focus {
  border: 2px solid var(--secondary);
}

.not-found {
  text-align: center;
  min-height: 85vh;
  display: flex;
  align-items: center;
  background: linear-gradient(to bottom, var(--bg-dark), #0c1015);
  position: relative;
  overflow: hidden;
  margin: auto;
  flex-direction: row;
  justify-content: center;
}

.not-found h1, .content-title h1{
  font-size: 4.0rem;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  max-width: 1000px;
  background: var(--gradient);
  background-clip: inherit;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.content-title h1 {
  font-size: 2.4rem;
}

.content-list {
  list-style: none;
  padding: 15px;
}

.content-list li {
  margin-bottom: 20px;
}

.content-list a{
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 5px;
  font-size: 22px;
}

.content-list a{
  text-decoration: none;
  color: var(--text);
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 5px;
  font-size: 22px;
}

.content-list a img{
  margin-bottom: 5px;
}

.content-item {
  background: var(--text-dark);
  width: auto;
  padding: 10px;
  border-radius: 10px;
}

.bonus {
  background: #fcf38b;
}

.bonus a{
  color: var(--text-darker);
}

.activation-form .error-msg {
  color: #e63946;
  font-size: 0.95em;
  min-height: 0.95em;
  visibility: hidden;
  transition: opacity 0.3s ease;
}

.activation-form input.error {
  border: 2px solid #e63946;
}

.bonus-separator {
  margin-top: 15px;
  margin-bottom: 15px;
  font-size: 28px;
  color: #fcf38b;
}

@keyframes shake {
  0% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
  100% { transform: translateX(0); }
}

input.error.shake {
  animation: shake 0.3s ease;
}

.product-content {
  padding: 6rem 0;
  background: radial-gradient(circle at center, rgba(0, 225, 255, 0.1) 0%, transparent 70%);
}

@media (max-width: 1800px) {
  .footer-content p{
    font-size: 1.2em;
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  .product-content-header h2{
    font-size: 2rem;
  }

  .catalogo, .product-content {
    padding: 1rem 0;
  }

  .catalogo-list {
    flex-direction: column;
  }

  .product-card{
    height: 300px;
    width: 300px;
  }

  .product {
    max-width: 300px;
  }

  .activation{
    height: 65vh;
    padding: 35px;
  }

  .activation-form{
    margin-top: 0px;
    padding: 20px;
  }

  .not-found h1 {
    font-size: 2.5rem;
  }

  .not-found {
    min-height: 70vh;
    padding: 20px;
    padding: 20px;
  }

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

  .footer-content p{
    margin-top: 40px;
    text-align: center;
  }

  .catalogo {
    padding-bottom: 15px;
  }

  header {
    position: relative;
  }

  nav a {
    margin-left: 1rem;
  }
}

@media (max-width: 538px) {
  .content-list a{
    font-size: 1.1rem;
  }

  .product-content-header {
    margin-bottom: 0;
  }
}