/* Variables */
:root {
  --orange-primary: #FF5A00;
  --yellow-acid: #DFFF00;
  --dark: #1A1A1A;
  --light-gray: #F5F5F5;
  --white: #FFFFFF;
  --gray-200: #E5E5E5;
  --gray-400: #A0A0A0;
  --gray-700: #5A5A5A;
}

/* Reset and Base Styles */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
}

a {
  text-decoration: none;
  color: inherit;
}

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

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--yellow-acid) 100%);
  color: var(--white);
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  padding: 1rem 2rem;
  border-radius: 9999px;
  text-align: center;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--yellow-acid) 0%, var(--orange-primary) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 8px rgba(0, 0, 0, 0.15);
}

/* Helper Classes */
.accent-orange {
  color: var(--orange-primary);
}

.accent-yellow {
  color: var(--yellow-acid);
}

.section-description {
  text-align: center;
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Animations */
@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.bounce {
  animation: bounce 3s infinite;
}

/* Header & Navigation */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.navbar {
  padding: 1rem 0;
}

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

.logo {
  display: flex;
  align-items: center;
}

.logo-icon {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--yellow-acid) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.5rem;
  color: var(--white);
  font-size: 1.2rem;
}

.logo span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--orange-primary);
}

.nav-menu {
  display: none;
}

.nav-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  margin-left: 1.5rem;
  transition: color 0.3s ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--orange-primary);
}

.menu-toggle {
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--dark);
}

.mobile-menu {
  display: none;
  background-color: var(--white);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.mobile-menu.active {
  display: block;
}

.mobile-link {
  display: block;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  padding: 0.75rem 0;
  transition: color 0.3s ease;
}

.mobile-link:hover {
  color: var(--orange-primary);
}

/* Hero Banner */
.hero-banner {
  position: relative;
  padding: 8rem 0 4rem;
  background-image: url('img/ban5.png');
  background-size: cover;
  background-position: center;
  color: var(--white);
  text-align: center;
}

.hero-banner .overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.7);
}

.hero-banner .container {
  position: relative;
  z-index: 1;
}

.hero-banner h1 {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero-banner p {
  font-size: 1.25rem;
  max-width: 800px;
  margin: 0 auto 2rem;
}

/* Download Section */
.download-section {
  padding: 4rem 0;
  background-color: var(--light-gray);
}

.download-card {
  background-color: var(--white);
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
  overflow: hidden;
}

.download-info {
  padding: 2rem;
  text-align: center;
}

.download-info h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.download-info p {
  margin-bottom: 2rem;
}

.download-form {
  max-width: 500px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: 0.5rem;
  font-size: 1rem;
}

.form-group input:focus {
  outline: none;
  border-color: var(--orange-primary);
  box-shadow: 0 0 0 2px rgba(255, 90, 0, 0.2);
}

.form-message {
  margin-top: 1rem;
  min-height: 24px;
}

.form-message.success {
  color: #10B981;
  background-color: #ECFDF5;
  padding: 0.75rem;
  border-radius: 0.5rem;
}

.form-message.error {
  color: #EF4444;
  background-color: #FEF2F2;
  padding: 0.75rem;
  border-radius: 0.5rem;
}

.app-screenshots {
  background: linear-gradient(to right, var(--orange-primary), var(--yellow-acid));
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.screenshot {
  height: 12rem;
  border-radius: 0.75rem;
  box-shadow: 0 10px 15px rgba(0, 0, 0, 0.2);
}

.screenshot.rotate-left {
  transform: rotate(-6deg);
}

.screenshot.center {
  height: 14rem;
  z-index: 5;
}

.screenshot.rotate-right {
  transform: rotate(6deg);
}

/* Advantages Section */
.advantages-section {
  padding: 4rem 0;
  background-color: var(--white);
}

.advantages-section h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 1rem;
}

.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

.advantage-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.5rem;
  border-radius: 0.75rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.advantage-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.icon-circle {
  width: 5rem;
  height: 5rem;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--orange-primary) 0%, var(--yellow-acid) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--white);
  font-size: 1.5rem;
}

.advantage-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
  text-align: center;
}

.advantage-card p {
  text-align: center;
}

/* About Section */
.about-section {
  padding: 4rem 0;
  background-color: var(--light-gray);
}

.about-section h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 3rem;
}

.about-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.about-images {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-images img {
  width: 100%;
  border-radius: 0.75rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.about-text p {
  margin-bottom: 1rem;
}

/* FAQ Section */
.faq-section {
  padding: 4rem 0;
  background-color: var(--white);
}

.faq-section h2 {
  font-size: 2rem;
  text-align: center;
  margin-bottom: 1rem;
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border-bottom: 1px solid var(--gray-200);
  padding-bottom: 1rem;
  margin-bottom: 1rem;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.125rem;
  padding: 0.75rem 0;
  cursor: pointer;
}

.faq-question i {
  color: var(--orange-primary);
  transition: transform 0.3s ease;
}

.faq-question.active i {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer.active {
  max-height: 200px;
  padding-bottom: 1rem;
}

/* Age Disclaimer */
.age-disclaimer {
  padding: 2.5rem 0;
  background-color: var(--dark);
  color: var(--white);
}

.age-disclaimer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.disclaimer-content {
  display: flex;
  align-items: center;
  margin-bottom: 1rem;
}

.age-icon {
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  border: 2px solid var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
}

.disclaimer-links a {
  margin: 0 1rem;
  color: var(--white);
  transition: color 0.3s ease;
}

.disclaimer-links a:hover {
  color: var(--yellow-acid);
}

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

.footer-top {
  display: flex;
  flex-direction: column;
  align-items: center;
  border-bottom: 1px solid #333;
  padding-bottom: 2rem;
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: 1.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.footer-links a {
  color: var(--white);
  transition: color 0.3s ease;
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.footer-bottom p {
  color: var(--gray-400);
  margin-bottom: 1rem;
}

.footer-extra {
  display: flex;
  align-items: center;
}

.age-badge {
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  border: 1px solid var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
}

.legal-links {
  display: flex;
  gap: 1rem;
}

.legal-links a {
  color: var(--gray-400);
  transition: color 0.3s ease;
}

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

/* Responsive */
@media (min-width: 768px) {
  .hero-banner {
    padding: 10rem 0 6rem;
  }
  
  .hero-banner h1 {
    font-size: 3.5rem;
  }
  
  .form-group {
    flex-direction: row;
  }
  
  .advantages-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .about-content {
    flex-direction: row;
  }
  
  .about-images {
    width: 40%;
  }
  
  .about-text {
    width: 60%;
  }
  
  .age-disclaimer .container {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .disclaimer-content {
    margin-bottom: 0;
  }
  
  .footer-top {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
  
  .footer-logo {
    margin-bottom: 0;
  }
  
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
  
  .footer-bottom p {
    margin-bottom: 0;
  }
}

@media (min-width: 992px) {
  .nav-menu {
    display: flex;
  }
  
  .menu-toggle {
    display: none;
  }
  
  .advantages-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}