/* Enhanced Color Palette */
:root {
    /* Primary Brand Colors */
    --primary-color:  #ff7b00;          /* Slightly bolder orange */
    --primary-dark: #E25000;           /* Deeper orange for contrast */
    --primary-light: #FFB74D;          /* Soft orange for accents */
    
    /* UI Colors */
    --background-color: #FAFBFC;       /* Subtle off-white background */
    --background-alt: #F0F4F8;         /* Alternative background for sections */
    --card-bg: #FFFFFF;                /* Pure white for cards */
    
    /* Text Colors */
    --text-primary: #1A202C;           /* Near black for main text */
    --text-secondary: #4A5568;         /* Dark gray for secondary text */
    --text-muted: #718096;             /* Medium gray for less important text */
    
    /* Accent Colors */
    --accent-blue: #3182CE;            /* Blue for links and alternate actions */
    --accent-green: #38A169;           /* Success indicators */
    --accent-red: #E53E3E;             /* Error/danger indicators */
    
    /* Enhanced Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05), 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.05), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-card: 0 0 20px rgba(0, 0, 0, 0.05), 0 0 8px rgba(0, 0, 0, 0.03);
    --shadow-hover: 0 15px 30px rgba(0, 0, 0, 0.1), 0 5px 15px rgba(0, 0, 0, 0.05);
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Montserrat', var(--font-sans);
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.25s ease;
    --transition-slow: 0.4s ease;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 20px;
    --radius-full: 9999px;
}

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

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

body {
    font-family: var(--font-sans);
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.7;
    font-weight: 400;
    font-feature-settings: "kern", "liga", "clig", "calt";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Enhanced Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

h1 {
    font-size: 2rem;
    letter-spacing: -0.03em;
    color:  #2D3E50;
}

h2 {
    font-size: 2.25rem;
    color: var(--primary-dark);
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin: 2rem 0 1rem;
}

p {
    margin-bottom: 1.5rem;
    color: black;
}

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

a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* Container & Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }
}


/* Upgraded Header */
header {
    background: white;
    padding: 2rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

header.scrolled {
    padding: 1rem 0;
    background: rgba(255, 107, 0, 0.95);
    
    backdrop-filter: none;
}

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

.navbar-container {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding: 15px 0;
    }
    
    .logo-container {
      display: flex;
      align-items: center;
      text-decoration: none;
    }
    
    .logo-image {
      height: 40px;
      margin-right: 10px;
    }

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--dark);
}
    
    .logo span {
      color: var(--primary);
    }
    

.nav-menu {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color:#ff7b00;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-links {
  display: flex;
  gap: 20px;
  align-items: center;
}
    
    .nav-links a {
      margin-left: 25px;
      text-decoration: none;
      color: var(--dark);
      font-weight: 500;
      transition: var(--transition);
    }
    
    .nav-links a:hover {
      color:#ff7b00;
    }


@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
    width: 100%;
  }

  .logo-container {
    margin-bottom: 10px;
  }
}
/* .nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0.5rem;
    right: 0.5rem;
    height: 2px;
    background-color: white;
    transform: scaleX(0);
    transition: transform var(--transition-normal); 
}*/

/* .nav-link:hover::after {
    transform: scaleX(1);
} 

.nav-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    text-decoration: none;
} */

/* Enhanced Hero Section */
.hero-section {
    background: linear-gradient(#FFF3E0);
    color:  #2D3E50;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.2) 0%, rgba(255,255,255,0) 60%);
    z-index: 1;
}

.hero-section::after {
    content: "";
    position: absolute;
    bottom: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0) 60%);
    z-index: 1;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color:  #2D3E50;
    animation: fadeInUp 0.8s ease forwards;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    animation: fadeInUp 0.8s ease forwards 0.2s;
}

.cta-button {
    display: inline-block;
    background-color: white;
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.8s ease forwards 0.4s;
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.8) 50%, rgba(255,255,255,0) 100%);
    transform: translateX(-100%);
    transition: var(--transition-slow);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.cta-button:hover::before {
    transform: translateX(100%);
}

/* Upgraded Feature Cards */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin: 4rem 0;
}

.feature-card {
    background-color: var(#FFF3E0);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 2.5rem;
    transition: all var(--transition-normal);
    border-top: 4px solid var(--primary-light);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
    transform: scaleX(0.3);
    transform-origin: 0 0;
    transition: transform var(--transition-normal);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 1.5rem;
    color: white;
    font-size: 1.5rem;
    transition: all var(--transition-normal);
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.2);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1) rotate(10deg);
}

.feature-title {
    font-size: 1.35rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 0.75rem;
}

.feature-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-light);
    border-radius: var(--radius-full);
}

.feature-content {
    flex-grow: 1;
    color: var(--text-secondary);
}

/* Enhanced How It Works Section */
.how-it-works {
    padding: 5rem 0;
    background-color: var(--background-alt);
    position: relative;
    overflow: hidden;
}

.how-it-works::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
}

.steps {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin: 4rem 0;
    gap: 2rem;
    position: relative;
}

.steps::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 60px;
    right: 60px;
    height: 2px;
    background: var(--primary-light);
    z-index: 0;
    opacity: 0.3;
}

.step {
    flex: 1;
    min-width: 280px;
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
    position: relative;
    z-index: 1;
    transition: all var(--transition-normal);
}

.step:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.step-number {
    position: absolute;
    top: -20px;
    left: 25px;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-radius: var(--radius-full);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: bold;
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.3);
}

.step-title {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.35rem;
}

/* Enhanced Testimonials Section */
.testimonials {
    padding: 5rem 0;
    background-color: var(--background-color);
    position: relative;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    margin: 4rem 0;
}

.testimonial-card {
    background-color: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: var(--shadow-card);
    position: relative;
    transition: all var(--transition-normal);
    overflow: hidden;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.testimonial-card::before {
     content: "“";
    position: absolute;
    top: 10px;
    left: 15px;
    font-size: 6rem;
    color: var(--primary-light);
    line-height: 1;
    opacity: 0.15;
    font-family: Georgia, serif;
    z-index: 0;
}

.testimonial-text {
    position: relative;
    z-index: 1;
    margin-bottom: 1.75rem;
    font-style: italic;
    color: var(--text-secondary);
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 1rem;
    position: relative;
    z-index: 1;
}

.author-avatar {
    width: 55px;
    height: 55px;
    border-radius: var(--radius-full);
    object-fit: cover;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.25rem;
}

.author-info {
    display: flex;
    flex-direction: column;
}

.author-name {
    font-weight: 600;
    color: var(--primary-color);
}

.author-role {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Enhanced Section Headers */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.section-title {
    color: var(--primary-color);
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    border-radius: var(--radius-full);
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
}

.section-subtitle {
    color: var(--text-secondary);
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
}
.cta-section{
    background-color: var(--primary-color);
    padding: 80px 0;
    color: white;
    text-align: center;
}

.cta-section-header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.cta-section-title {
    color: white;
    font-size: 2.5rem;
    margin-bottom: 1.25rem;
    position: relative;
    display: inline-block;
}

.cta-section-title::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: -12px;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    border-radius: var(--radius-full);
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
}

.cta-section-subtitle {
    color: white;
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.125rem;
}
/* Enhanced Footer */
.footer {
    background-color: #FFF3E0;
    color:black;
    padding: 5rem 0 2rem;
    position: relative;

}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-column h3 {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.75rem;
    color: var(--primary-color);
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--primary-light);
    border-radius: var(--radius-full);
}

.footer-column ul {
    list-style: none;
}

.footer-column ul li {
    margin-bottom: 0.75rem;
}

.footer-column ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    display: inline-block;
}

.footer-column ul li a:hover {
    color: var(--primary-color);
    transform: translateX(3px);
}

.social-icons {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-icons a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: rgba(0, 0, 0, 0.05);
    color: var(--text-secondary);
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    padding-top: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Enhanced Slideshow */
.slideshow-section {
    padding: 5rem 0;
    background-color: var(--background-color);
}

.slideshow-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    background: var(--card-bg);
}

.slides {
    display: none;
    text-align: center;
}

.slides img {
    width: 100%;
    max-height: 500px;
    object-fit: contain;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.slide-caption {
    padding: 1.5rem;
    font-size: 1.125rem;
    background: var(--background-alt);
    color: var(--text-secondary);
}

/* Navigation Buttons */
.prev, .next {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: 50px;
    height: 50px;
    margin-top: -25px;
    color: white;
    font-weight: bold;
    font-size: 1.25rem;
    border-radius: var(--radius-full);
    background-color: rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    transition: all var(--transition-normal);
    z-index: 10;
}

.prev:hover, .next:hover {
    background-color: var(--primary-color);
    transform: scale(1.1);
}

.prev {
    left: 15px;
}

.next {
    right: 15px;
}

/* Dot indicators */
.dot-container {
    text-align: center;
    margin-top: 1.5rem;
}

.dot {
    height: 12px;
    width: 12px;
    margin: 0 6px;
    background-color: #bbb;
    border-radius: var(--radius-full);
    display: inline-block;
    transition: all var(--transition-normal);
    cursor: pointer;
}

.dot:hover {
    background-color: var(--primary-light);
}

.dot.active, .dot.active-dot {
    background-color: var(--primary-color);
    transform: scale(1.2);
}

/* Progress Bar */
.progress-bar {
    height: 4px;
    width: 0;
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
    position: absolute;
    bottom: 0;
    left: 0;
    animation: progress 5s linear infinite;
    z-index: 5;
}

@keyframes progress {
    from { width: 0; }
    to { width: 100%; }
}

/* Enhanced AI Technology Section */
.ai-technology-section {
    padding: 6rem 0;
    background: linear-gradient(to bottom, var(--background-color), var(--background-alt));
    position: relative;
}

.ai-technology-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-light));
}

.model-showcase {
    margin: 5rem 0;
}

.model-diagram-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    position: relative;
}

.model-card {
    width: 100%;
    max-width: 800px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 2.5rem;
    position: relative;
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.model-header {
    display: flex;
    align-items: center;
    margin-bottom: 2rem;
    gap: 1rem;
}

.model-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-color) 100%);
    color: white;
    font-size: 1.5rem;
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.2);
}

.model-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.model-flow {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 2rem 0;
    padding: 2rem;
    background: var(--background-alt);
    border-radius: var(--radius-lg);
    flex-wrap: wrap;
    gap: 1rem;
}

.process-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 120px;
}

.process-circle {
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    margin-bottom: 1rem;
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.3);
    transition: all var(--transition-normal);
}

.process-node:hover .process-circle {
    transform: scale(1.1);
}

.process-label {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.flow-arrow {
    color: var(--text-muted);
    transform: translateY(-5px);
    font-size: 1.5rem;
}

.model-badge {
    position: absolute;
    top: -15px;
    right: 25px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 0.5rem 1.25rem;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: 0 5px 15px rgba(255, 107, 0, 0.3);
}

.output-card {
    width: 100%;
    max-width: 800px;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    padding: 3rem 2rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(0, 0, 0, 0.03);
    transition: all var(--transition-normal);
}

.output-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.output-glow {
    position: absolute;
    top: -30px;
    left: -30px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 123, 0, 0.15) 0%, rgba(255, 255, 255, 0) 70%);
    border-radius: var(--radius-full);
}

.output-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    color: white;
    font-size: 2rem;
    box-shadow: 0 10px 25px rgba(255, 123, 0, 0.3);
    transition: all var(--transition-normal);
}

.output-card:hover .output-icon {
    transform: scale(1.1) rotate(10deg);
}

.output-title {
    font-size: 2rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.output-description {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto;
}

.technology-features {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 5rem;
    flex-wrap: wrap;
}

.tech-feature {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    width: 220px;
    transition: all var(--transition-normal);
}

.tech-feature:hover {
    transform: translateY(-5px);
}

.tech-icon {
    width: 70px;
    height: 70px;
    background: var(--card-bg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    box-shadow: var(--shadow-md);
    color: var(--primary-color);
    font-size: 1.75rem;
    transition: all var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.03);
}

.tech-feature:hover .tech-icon {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    transform: scale(1.1);
    box-shadow: 0 10px 20px rgba(255, 107, 0, 0.2);
}

.tech-feature h4 {
    font-size: 1.25rem;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.tech-feature p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    opacity: 0;
    pointer-events: none;
    z-index: 999;
    font-size: 1.25rem;
}

.back-to-top.visible {
    opacity: 1;
    pointer-events: auto;
}

.back-to-top:hover {
    transform: translateY(-5px) scale(1.1);
    box-shadow: 0 10px 20px rgba(255, 107, 0, 0.3);
}

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

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

.fade-in {
    opacity: 0;
    animation: fadeIn 0.8s ease forwards;
}

.fade-in-up {
    opacity: 0;
    animation: fadeInUp 0.8s ease forwards;
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }

/* Intersection Observer Animation Classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }
.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }
.my-4 { margin-top: 1rem; margin-bottom: 1rem; }
.my-8 { margin-top: 2rem; margin-bottom: 2rem; }

.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-8 { padding: 2rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.rounded-sm { border-radius: var(--radius-sm); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: var(--radius-full); }

.w-full { width: 100%; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-3xl { max-width: 48rem; }
.max-w-4xl { max-width: 56rem; }

.text-sm { font-size: 0.875rem; }
.text-base { font-size: 1rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-3xl { font-size: 1.875rem; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-primary { color: var(--primary-color); }
.text-dark { color: var(--text-primary); }
.text-muted { color: var(--text-secondary); }
.text-light { color: var(--text-muted); }
.text-white { color: white; }

.bg-primary { background-color: var(--primary-color); }
.bg-light { background-color: var(--background-alt); }
.bg-white { background-color: var(--card-bg); }

/* Responsive Media Queries */
@media (max-width: 992px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.25rem;
    }
    
    .steps::after {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar-container {
        flex-wrap: wrap;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .feature-card {
        padding: 2rem;
    }
    
    .model-flow {
        flex-direction: column;
        gap: 2rem;
    }
    
    .flow-arrow {
        transform: rotate(90deg);
    }
    
    .steps {
        flex-direction: column;
    }
    
    .step {
        max-width: 100%;
    }
    
    .step-number {
        left: 50%;
        transform: translateX(-50%);
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .prev, .next {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
}

@media (max-width: 576px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-section {
        padding: 4rem 0;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .feature-icon, .tech-icon {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .model-card, .output-card {
        padding: 1.5rem;
    }
    
    .model-header {
        flex-direction: column;
        text-align: center;
    }
    
    .model-badge {
        position: static;
        display: inline-block;
        margin-bottom: 1rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
    }
}

/* Accessibility Enhancements */
:focus {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

:focus:not(:focus-visible) {
    outline: none;
}

:focus-visible {
    outline: 3px solid var(--primary-light);
    outline-offset: 2px;
}

/* Progressive Enhancement */
@supports (backdrop-filter: blur(10px)) {
    header.scrolled {
        background: rgba(255, 107, 0, 0.85);
        backdrop-filter: blur(10px);
    }
}

/* Dark Mode Support (Optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --background-color: #111827;
        --background-alt: #1F2937;
        --card-bg: #1E293B;
        --text-primary: #F9FAFB;
        --text-secondary: #E5E7EB;
        --text-muted: #9CA3AF;
        --border-color: #374151;
    }
    
    .feature-card, .step, .testimonial-card, .model-card, .output-card {
        background-color: var(--card-bg);
        border-color: var(--border-color);
    }
    
    .model-flow {
        background-color: var(--background-alt);
    }
    
    .slideshow-container {
        background-color: var(--card-bg);
    }
    
    .slide-caption {
        background-color: var(--background-alt);
        color: var(--text-secondary);
    }
    
    .footer {
        background-color: var(--background-alt);
    }
    
    .tech-icon {
        background-color: var(--background-alt);
    }
    
    .feature-title::after,
    .footer-column h3::after,
    .section-title::after {
        background: var(--primary-color);
    }
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--primary-light);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* Print Styles */
@media print {
    header, footer, .back-to-top, .slideshow-section {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    .container {
        width: 100%;
        max-width: none;
        padding: 0;
        margin: 0;
    }
    
    h1, h2, h3, h4, h5, h6 {
        page-break-after: avoid;
        page-break-inside: avoid;
    }
    
    p, blockquote, ul, ol, dl, table {
        page-break-inside: avoid;
    }
    
    img {
        max-width: 100% !important;
    }
    
    @page {
        margin: 2cm;
    }
}