@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

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

:root {
  --primary-bg: #0a0a0a;
  --secondary-bg: #111111;
  --accent-color: #ff3b3b;
  --accent-gradient: linear-gradient(135deg, #ff3b3b 0%, #cc0000 100%);
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --glass-bg: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.15);
  --shadow-glow: 0 0 30px rgba(255, 59, 59, 0.4);
  --red-light: #ff6b6b;
  --red-dark: #cc0000;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--primary-bg);
  overflow-x: hidden;
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--secondary-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent-color);
  border-radius: 4px;
}

/* Header with glassmorphism */
header {
  background: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 20px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: all 0.3s ease;
}

header .logo {
  font-weight: 700;
  font-size: 1.8em;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

header nav a {
  color: var(--text-primary);
  margin-left: 30px;
  text-decoration: none;
  font-weight: 500;
  position: relative;
  transition: all 0.3s ease;
}

header nav a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: width 0.3s ease;
}

header nav a:hover::after {
  width: 100%;
}

header nav a:hover {
  color: var(--accent-color);
  transform: translateY(-2px);
}

/* Hero section with futuristic design */
.hero {
  background: linear-gradient(135deg, var(--primary-bg) 0%, var(--secondary-bg) 100%);
  padding: 160px 40px 100px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: radial-gradient(circle at 50% 50%, rgba(255, 59, 59, 0.15) 0%, transparent 70%);
  animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.6; }
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  font-size: 3.5em;
  margin-bottom: 20px;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  animation: fadeInUp 1s ease-out;
}

.hero p {
  margin-bottom: 30px;
  font-size: 1.2em;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  animation: fadeInUp 1s ease-out 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 60px;
  animation: fadeInUp 1s ease-out 0.4s both;
}

.cta-btn {
  background: var(--accent-gradient);
  color: var(--text-primary);
  padding: 15px 30px;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1em;
  transition: all 0.3s ease;
  display: inline-block;
  position: relative;
  overflow: hidden;
}

.cta-btn.secondary {
  background: transparent;
  border: 2px solid var(--accent-color);
  color: var(--accent-color);
}

.cta-btn.secondary:hover {
  background: var(--accent-color);
  color: var(--primary-bg);
}

.cta-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.cta-btn:hover::before {
  left: 100%;
}

.cta-btn:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow);
}

/* Hero stats */
.hero-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  flex-wrap: wrap;
  margin-top: 40px;
  animation: fadeInUp 1s ease-out 0.6s both;
}

.stat {
  text-align: center;
  padding: 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  transition: all 0.3s ease;
}

.stat:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-glow);
}

.stat-number {
  display: block;
  font-size: 2.5em;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 5px;
}

.stat-label {
  color: var(--text-secondary);
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Sections with glassmorphism */
section {
  padding: 100px 40px;
  text-align: center;
  position: relative;
}

section h2 {
  font-size: 2.5em;
  margin-bottom: 30px;
  font-weight: 600;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

section p {
  color: var(--text-secondary);
  font-size: 1.1em;
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

/* About features */
.about-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  max-width: 1200px;
  margin: 60px auto 0;
}

.feature {
  text-align: center;
  padding: 40px 30px;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  transition: all 0.3s ease;
  position: relative;
  overflow: visible;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.feature:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-glow);
}

.feature:hover .emoji-icon {
  transform: scale(1.8);
  filter: drop-shadow(0 0 25px rgba(255, 59, 59, 0.8));
  background: linear-gradient(135deg, rgba(255, 59, 59, 0.2) 0%, rgba(255, 59, 59, 0.1) 100%);
  border-color: rgba(255, 59, 59, 0.6);
  z-index: 10;
}

.feature-icon {
  margin-bottom: 20px;
  display: block;
  text-align: center;
  transition: all 0.3s ease;
  overflow: visible;
  position: relative;
  z-index: 5;
  flex: 0 0 auto;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.emoji-icon {
  font-size: 3.5em;
  display: block;
  background: linear-gradient(135deg, rgba(255, 59, 59, 0.1) 0%, rgba(255, 59, 59, 0.05) 100%);
  border-radius: 20px;
  padding: 20px;
  transition: all 0.3s ease;
  filter: drop-shadow(0 0 10px rgba(255, 59, 59, 0.3));
  border: 2px solid rgba(255, 59, 59, 0.2);
}

.emoji-icon:hover {
  transform: scale(1.8);
  filter: drop-shadow(0 0 25px rgba(255, 59, 59, 0.8));
  background: linear-gradient(135deg, rgba(255, 59, 59, 0.2) 0%, rgba(255, 59, 59, 0.1) 100%);
  border-color: rgba(255, 59, 59, 0.6);
  z-index: 10;
}

.feature h3 {
  color: var(--accent-color);
  margin-bottom: 15px;
  font-size: 1.3em;
  flex: 0 0 auto;
}

.feature p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 0.95em;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1.6;
}

/* Steps with modern cards */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.step {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 40px 30px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.step::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-gradient);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

.step:hover::before {
  transform: scaleX(1);
}

.step:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-glow);
  border-color: var(--accent-color);
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5em;
  font-weight: 700;
  color: var(--text-primary);
  margin: 0 auto 20px;
}

.step h3 {
  font-size: 1.5em;
  margin-bottom: 20px;
  font-weight: 600;
  color: var(--accent-color);
}

.step p {
  color: var(--text-secondary);
  margin: 0;
}

/* Services section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 60px auto 0;
}

.service-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 40px 30px;
  transition: all 0.3s ease;
  text-align: left;
}

.service-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-glow);
}

.service-card h3 {
  color: var(--accent-color);
  margin-bottom: 15px;
  font-size: 1.4em;
}

.service-card p {
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.service-card ul {
  list-style: none;
  padding: 0;
}

.service-card li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  padding-left: 20px;
  position: relative;
}

.service-card li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent-color);
  font-weight: bold;
}

/* Enhanced contact form */
#contact form {
  max-width: 600px;
  margin: 0 auto;
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

#contact input,
#contact textarea {
  width: 100%;
  margin: 0;
  padding: 15px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 1em;
  transition: all 0.3s ease;
}

#contact input:focus,
#contact textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 20px rgba(255, 59, 59, 0.3);
  background: rgba(255, 255, 255, 0.1);
}

#contact input::placeholder,
#contact textarea::placeholder {
  color: var(--text-secondary);
}

#contact button {
  background: var(--accent-gradient);
  color: var(--text-primary);
  border: none;
  padding: 15px 30px;
  cursor: pointer;
  border-radius: 50px;
  font-weight: 600;
  font-size: 1.1em;
  font-family: 'Inter', sans-serif;
  transition: all 0.3s ease;
  width: 100%;
  margin-top: 20px;
  position: relative;
  overflow: hidden;
}

#contact button:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-loading {
  display: none;
}

.loading .btn-text {
  display: none;
}

.loading .btn-loading {
  display: inline;
}

/* Buyer benefits section */
.buyer-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  max-width: 1200px;
  margin: 60px auto 40px;
}

.benefit-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 30px;
  text-align: left;
  transition: all 0.3s ease;
}

.benefit-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-glow);
}

.benefit-card h3 {
  color: var(--accent-color);
  margin-bottom: 15px;
  font-size: 1.3em;
}

.benefit-card p {
  color: var(--text-secondary);
  margin: 0;
  line-height: 1.6;
}

.buyer-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* Flipstackk section */
.flipstackk-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  max-width: 800px;
  margin: 40px auto;
}

.feature-item {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 15px;
  padding: 20px;
  text-align: center;
  font-size: 1.1em;
  color: var(--text-secondary);
  transition: all 0.3s ease;
}

.feature-item:hover {
  transform: translateY(-3px);
  border-color: var(--accent-color);
  box-shadow: var(--shadow-glow);
  color: var(--accent-color);
}

.flipstackk-cta {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 40px;
}

/* Enhanced footer */
footer {
  background: var(--secondary-bg);
  color: var(--text-secondary);
  padding: 60px 40px 20px;
  border-top: 1px solid var(--glass-border);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px;
  max-width: 1200px;
  margin: 0 auto 40px;
}

.footer-section h4 {
  color: var(--accent-color);
  margin-bottom: 20px;
  font-size: 1.2em;
}

.footer-section p {
  margin-bottom: 10px;
  color: var(--text-secondary);
}

.footer-section a {
  color: var(--text-secondary);
  text-decoration: none;
  display: block;
  margin-bottom: 8px;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--accent-color);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--glass-border);
  color: var(--text-secondary);
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive design */
@media (max-width: 768px) {
  header {
    padding: 15px 20px;
    flex-direction: column;
    gap: 15px;
  }
  
  header nav a {
    margin: 0 10px;
  }
  
  .hero {
    padding: 140px 20px 80px;
  }
  
  .hero h1 {
    font-size: 2.5em;
  }
  
  section {
    padding: 60px 20px;
  }
  
  .hero-stats {
    gap: 30px;
  }
  
  .stat {
    padding: 15px;
  }
  
  .stat-number {
    font-size: 2em;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .about-features,
  .services-grid,
  .buyer-benefits {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  .flipstackk-features {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  
  .buyer-cta,
  .flipstackk-cta {
    flex-direction: column;
    align-items: center;
  }
  
  .steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  
  #contact form {
    margin: 0 20px;
    padding: 30px 20px;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

/* Loading animation for form submission */
.loading {
  opacity: 0.7;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 20px;
  height: 20px;
  margin: -10px 0 0 -10px;
  border: 2px solid transparent;
  border-top: 2px solid var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}