/* 
 * nudefy.works - Main Stylesheet
 * A modern, responsive design with SEO optimizations
 */

:root {
  /* Primary color scheme - purple to blue gradient */
  --primary-gradient-start: #6a11cb;
  --primary-gradient-end: #2575fc;
  --primary-gradient: linear-gradient(135deg, var(--primary-gradient-start) 0%, var(--primary-gradient-end) 100%);
  
  /* Neutral colors */
  --dark: #121212;
  --medium-dark: #333333;
  --medium: #666666;
  --medium-light: #999999;
  --light: #f8f8f8;
  --white: #ffffff;
  
  /* Accent colors */
  --accent-1: #fd746c;
  --accent-2: #2fd0b5;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 5rem;
  
  /* Typography */
  --font-primary: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-secondary: 'Georgia', serif;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  line-height: 1.6;
  color: var(--medium-dark);
  background-color: var(--white);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: var(--spacing-sm);
  line-height: 1.2;
  font-weight: 700;
  color: var(--dark);
}

h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

h2 {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  position: relative;
}

h2:after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 0;
  width: 60px;
  height: 4px;
  background: var(--primary-gradient);
  border-radius: 2px;
}

h3 {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-sm);
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--medium);
}

a {
  color: var(--primary-gradient-end);
  text-decoration: none;
  transition: all var(--transition-fast);
}

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

section {
  padding: var(--spacing-xl) var(--spacing-md);
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-sm);
}

/* Header & Navigation */
header {
  position: relative;
  background: var(--light);
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 200%;
  background: var(--primary-gradient);
  transform: rotate(-15deg);
  opacity: 0.05;
  z-index: 0;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-md);
  position: relative;
  z-index: 100;
}

.logo {
  display: flex;
  align-items: center;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--dark);
}

.logo-icon {
  margin-right: var(--spacing-xs);
}

.nav-links {
  display: flex;
  align-items: center;
}

.nav-links a {
  margin-left: var(--spacing-md);
  font-weight: 500;
  position: relative;
  color: var(--medium-dark);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  transition: width var(--transition-medium);
}

.nav-links a:hover::after {
  width: 100%;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 21px;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 3px;
  background: var(--medium-dark);
  border-radius: 3px;
  transition: all var(--transition-medium);
}

/* Hero Section */
.hero {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-xl);
  position: relative;
  z-index: 1;
}

.hero-content {
  flex: 1;
  max-width: 600px;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: var(--spacing-xs);
  color: var(--dark);
  line-height: 1.1;
}

.hero h2 {
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  font-weight: 400;
}

.hero h2:after {
  display: none;
}

.hero p {
  font-size: 1.25rem;
  margin-bottom: var(--spacing-md);
  color: var(--medium);
}

.highlight {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
  font-weight: 700;
}

.hero-graphic {
  flex: 1;
  display: flex;
  justify-content: flex-end;
  max-width: 500px;
}

/* CTA Button */
.cta-button {
  display: inline-block;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--primary-gradient);
  color: var(--white);
  font-weight: 600;
  border-radius: var(--radius-md);
  text-align: center;
  transition: all var(--transition-fast);
  box-shadow: var(--shadow-md);
}

.cta-button:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.cta-container {
  margin-top: var(--spacing-lg);
  text-align: center;
}

/* Features Section */
.features {
  background-color: var(--white);
  text-align: center;
}

.features h2 {
  display: inline-block;
  margin-bottom: var(--spacing-lg);
}

.features h2:after {
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.feature-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-medium);
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-lg);
}

.feature-icon {
  margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
  margin-bottom: var(--spacing-xs);
  color: var(--dark);
}

.feature-card p {
  color: var(--medium);
}

/* How It Works Section */
.how-it-works {
  background-color: var(--light);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.how-it-works::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--primary-gradient);
  opacity: 0.03;
  z-index: 0;
}

.how-it-works h2 {
  display: inline-block;
  margin-bottom: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.how-it-works h2:after {
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
}

.steps {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
  position: relative;
  z-index: 1;
}

.step {
  flex: 1;
  max-width: 250px;
  position: relative;
}

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

.step h3 {
  margin-bottom: var(--spacing-xs);
}

.step p {
  color: var(--medium);
}

/* About Section */
.about {
  background-color: var(--white);
}

.about h2 {
  text-align: center;
  display: inline-block;
  margin: 0 auto var(--spacing-lg);
}

.about h2:after {
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
}

.about-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-lg);
}

.about-text {
  flex: 1;
}

.tech-graphic {
  flex: 1;
  display: flex;
  justify-content: center;
}

/* FAQ Section */
.faq {
  background-color: var(--light);
}

.faq h2 {
  text-align: center;
  display: inline-block;
  margin: 0 auto var(--spacing-lg);
}

.faq h2:after {
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
}

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

.faq-item {
  background-color: var(--white);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-sm);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
}

.faq-question h3 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 600;
}

.toggle-icon {
  font-size: 1.5rem;
  transition: transform var(--transition-medium);
}

.faq-item.active .toggle-icon {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 var(--spacing-md);
  max-height: 0;
  overflow: hidden;
  transition: all var(--transition-medium);
}

.faq-item.active .faq-answer {
  padding: 0 var(--spacing-md) var(--spacing-md);
  max-height: 500px;
}

/* Footer */
footer {
  background-color: var(--medium-dark);
  color: var(--light);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
}

.footer-content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.footer-logo {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-md);
}

.footer-icon {
  margin-right: var(--spacing-sm);
}

.footer-brand h3 {
  color: var(--white);
  margin-bottom: 0;
}

.footer-brand p {
  color: var(--medium-light);
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links-column {
  min-width: 150px;
}

.footer-links-column h4 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
  font-size: 1.1rem;
}

.footer-links-column a {
  display: block;
  color: var(--medium-light);
  margin-bottom: var(--spacing-xs);
  transition: color var(--transition-fast);
}

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

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

.footer-bottom p {
  color: var(--medium-light);
  margin: 0;
  font-size: 0.9rem;
}

/* Responsive Styles */
@media screen and (max-width: 992px) {
  h1 {
    font-size: 2.5rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  .hero {
    flex-direction: column;
    text-align: center;
  }
  
  .hero-content {
    max-width: 100%;
    margin-bottom: var(--spacing-lg);
  }
  
  .hero-graphic {
    max-width: 100%;
    justify-content: center;
  }
  
  h2:after {
    left: 50%;
    transform: translateX(-50%);
  }
  
  .steps {
    flex-direction: column;
    align-items: center;
  }
  
  .step {
    margin-bottom: var(--spacing-md);
  }
  
  .about-content {
    flex-direction: column;
  }
  
  .footer-content {
    flex-direction: column;
  }
}

@media screen and (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
  
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-md) 0;
    z-index: 100;
  }
  
  .nav-links.active a {
    margin: var(--spacing-xs) 0;
  }
  
  .features-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--spacing-md);
  }
}

/* Accessibility & Print Styles */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

@media print {
  body {
    background: var(--white);
    color: var(--dark);
  }
  
  a {
    color: var(--dark);
    text-decoration: underline;
  }
  
  .cta-button,
  .nav-links,
  .mobile-menu-btn,
  .footer {
    display: none;
  }
}

/* Animations */
.animate-fade-in {
  animation: fadeIn 1s ease forwards;
}

.animate-slide-up {
  animation: slideUp 0.8s ease forwards;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    transform: translateY(30px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}