/* 
 * aiporngeneratorfromphoto.love - Main Stylesheet
 * Created: 2025-07-23
 * Unique green & orange theme with photo transformation focus
 */

:root {
  /* Primary Colors - Green and Orange theme */
  --primary-green: #4CAF50;
  --primary-orange: #FF9800;
  --primary-gradient: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-orange) 100%);
  
  /* Secondary Colors */
  --dark-green: #2E7D32;
  --light-green: #81C784;
  --dark-orange: #F57C00;
  --light-orange: #FFB74D;
  
  /* Neutrals */
  --dark: #212121;
  --dark-gray: #424242;
  --medium-gray: #757575;
  --light-gray: #E0E0E0;
  --off-white: #F9F9F9;
  --white: #FFFFFF;
  
  /* Functional Colors */
  --success: #4CAF50;
  --warning: #FFC107;
  --error: #F44336;
  --info: #2196F3;
  
  /* Typography */
  --font-primary: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-secondary: 'Raleway', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;
  --font-size-xxl: 2.25rem;
  --font-size-hero: 3rem;
  
  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-xxl: 3rem;
  
  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  --border-radius-xl: 24px;
  --border-radius-circle: 50%;
  
  /* Shadows */
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 8px rgba(0,0,0,0.12);
  --shadow-lg: 0 8px 16px rgba(0,0,0,0.14);
  --shadow-xl: 0 12px 24px rgba(0,0,0,0.16);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: var(--font-size-xl);
}

h2 {
  font-size: var(--font-size-xxl);
  margin-bottom: var(--space-xl);
  position: relative;
  display: inline-block;
}

h2::after {
  content: "";
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--primary-gradient);
  border-radius: var(--border-radius-sm);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--space-md);
}

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

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

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

ul {
  list-style: none;
}

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

section {
  padding: var(--space-xxl) 0;
}

/* Header */
header {
  background-color: var(--white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: var(--space-md) 0;
}

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

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.logo h1 {
  margin: 0;
  font-weight: 800;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  color: transparent;
}

nav ul {
  display: flex;
  gap: var(--space-xl);
}

nav a {
  color: var(--dark);
  font-weight: 600;
  position: relative;
  padding: var(--space-xs) 0;
}

nav a::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 3px;
  background: var(--primary-gradient);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-normal);
}

nav a:hover,
nav a.active {
  color: var(--primary-green);
}

nav a:hover::after,
nav a.active::after {
  transform: scaleX(1);
}

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 30px;
  height: 20px;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  height: 3px;
  width: 100%;
  background-color: var(--primary-green);
  border-radius: var(--border-radius-circle);
  transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
  background-image: 
    radial-gradient(circle at 10% 20%, rgba(76, 175, 80, 0.03) 0%, transparent 20%),
    radial-gradient(circle at 90% 80%, rgba(255, 152, 0, 0.03) 0%, transparent 20%);
  position: relative;
  overflow: hidden;
}

.hero .container {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-xl) var(--space-lg);
}

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

.hero-content h2 {
  font-size: var(--font-size-hero);
  text-align: left;
  margin-bottom: var(--space-lg);
  line-height: 1.1;
}

.hero-content h2::after {
  content: none;
}

.hero-content h2 span {
  color: var(--primary-orange);
  position: relative;
  display: inline-block;
}

.hero-content h2 span::before {
  content: "";
  position: absolute;
  bottom: 5px;
  left: 0;
  width: 100%;
  height: 10px;
  background-color: rgba(255, 152, 0, 0.2);
  z-index: -1;
}

.hero-content p {
  font-size: var(--font-size-lg);
  color: var(--dark-gray);
  margin-bottom: var(--space-xl);
  max-width: 500px;
}

.cta-button {
  display: inline-block;
  background: var(--primary-gradient);
  color: var(--white);
  font-weight: 700;
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.cta-button:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.hero-graphic {
  flex: 0 0 40%;
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-15px); }
  100% { transform: translateY(0px); }
}

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

.features h2 {
  margin-bottom: var(--space-xxl);
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-xl);
  margin-top: var(--space-xl);
}

.card {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--space-xl);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 5px;
  background: var(--primary-gradient);
  z-index: -1;
}

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

.card .icon {
  margin: 0 auto var(--space-lg);
  width: 60px;
  height: 60px;
}

.card h3 {
  color: var(--dark);
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-lg);
}

.card p {
  color: var(--medium-gray);
  font-size: var(--font-size-md);
  margin-bottom: 0;
}

/* How It Works Section */
.how-it-works {
  text-align: center;
  background: linear-gradient(to right, rgba(76, 175, 80, 0.05), rgba(255, 152, 0, 0.05));
}

.steps {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.step {
  flex: 1;
  min-width: 200px;
  position: relative;
  padding: var(--space-lg);
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 30px;
  right: -30px;
  width: 60px;
  height: 2px;
  background: var(--primary-gradient);
  display: none;
}

@media (min-width: 768px) {
  .step:not(:last-child)::after {
    display: block;
  }
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  border-radius: var(--border-radius-circle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-xl);
  font-weight: bold;
  color: var(--white);
  margin: 0 auto var(--space-lg);
}

.step h3 {
  margin-bottom: var(--space-sm);
  font-size: var(--font-size-lg);
}

.step p {
  color: var(--medium-gray);
  margin-bottom: 0;
}

/* CTA Section */
.cta {
  background: var(--primary-gradient);
  color: var(--white);
  text-align: center;
}

.cta h2 {
  color: var(--white);
}

.cta h2::after {
  background: var(--white);
}

.cta p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  max-width: 700px;
  margin: 0 auto var(--space-xl);
}

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

.cta .cta-button:hover {
  background: var(--off-white);
}

/* Footer */
footer {
  background-color: var(--dark);
  color: var(--white);
  padding: var(--space-xxl) 0 var(--space-lg);
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-right: var(--space-xxl);
}

.footer-info h3 {
  margin-bottom: var(--space-xs);
  color: var(--white);
}

.footer-info p {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0;
}

.footer-links {
  display: flex;
  flex: 1;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

.footer-col {
  min-width: 120px;
}

.footer-col h4 {
  color: var(--white);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-md);
  position: relative;
  display: inline-block;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -5px;
  width: 30px;
  height: 2px;
  background: var(--primary-gradient);
}

.footer-col ul li {
  margin-bottom: var(--space-sm);
}

.footer-col a {
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-col a:hover {
  color: var(--primary-orange);
}

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

.footer-bottom p {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 992px) {
  h2 {
    font-size: calc(var(--font-size-xxl) - 0.25rem);
  }
  
  .hero-content h2 {
    font-size: calc(var(--font-size-hero) - 0.5rem);
  }
  
  .hero .container {
    flex-direction: column;
    text-align: center;
    gap: var(--space-xl);
    min-height: 70vh;
  }
  
  .hero-content {
    max-width: 100%;
  }
  
  .hero-content p {
    margin-left: auto;
    margin-right: auto;
  }
  
  .hero-content h2 {
    text-align: center;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 14px;
  }
  
  h2 {
    font-size: calc(var(--font-size-xxl) - 0.5rem);
  }
  
  .hero-content h2 {
    font-size: calc(var(--font-size-hero) - 1rem);
  }
  
  nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 80%;
    height: 100vh;
    background-color: var(--white);
    flex-direction: column;
    padding-top: 80px;
    box-shadow: var(--shadow-lg);
    transition: left var(--transition-normal);
  }
  
  nav.active {
    left: 0;
  }
  
  nav ul {
    flex-direction: column;
    align-items: center;
    gap: var(--space-lg);
  }
  
  .menu-toggle {
    display: flex;
    z-index: 1100;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
  
  .footer-content {
    flex-direction: column;
    gap: var(--space-xl);
  }
  
  .footer-logo {
    margin-right: 0;
    justify-content: center;
  }
  
  .footer-links {
    text-align: center;
  }
  
  .footer-col h4::after {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media (max-width: 576px) {
  .feature-cards {
    grid-template-columns: 1fr;
  }
  
  .steps {
    flex-direction: column;
    gap: var(--space-xl);
  }
  
  .step:not(:last-child)::after {
    display: none;
  }
  
  .footer-links {
    flex-direction: column;
    gap: var(--space-xl);
  }
}