/* ============================================
   SAHIL AI - Homepage Styles
   Futuristic Design with Neon Effects
   ============================================ */

:root {
    /* Colors */
    --bg-primary: #0E0E12;
    --bg-secondary: #11121A;
    --bg-card: rgba(17, 18, 26, 0.6);
    
    --neon-purple: #9A6AFF;
    --neon-purple-light: #C77DFF;
    --neon-blue: #5A9BFF;
    --neon-pink: #FF6B9D;
    
    --text-primary: #F5F5F7;
    --text-secondary: #A0A0A8;
    --text-muted: #6B6B73;
    
    --border-color: rgba(154, 106, 255, 0.2);
    
    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 48px;
    --spacing-xl: 80px;
    
    /* Fonts */
    --font-primary: 'Poppins', 'Inter', sans-serif;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ============================================
   Header
   ============================================ */

.main-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(14, 14, 18, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-glow {
    color: var(--text-primary);
    text-shadow: 0 0 20px rgba(154, 106, 255, 0.5);
}

.logo-ai {
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 900;
}

.main-nav {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 8px 16px;
    border-radius: 8px;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(154, 106, 255, 0.1);
    transform: translateY(-2px);
}

.header-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* ============================================
   Buttons
   ============================================ */

.btn-primary {
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-purple-light));
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(154, 106, 255, 0.3);
}

.btn-primary.large {
    padding: 16px 32px;
    font-size: 17px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(154, 106, 255, 0.5);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 12px 24px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.btn-secondary.large {
    padding: 16px 32px;
    font-size: 17px;
}

.btn-secondary:hover {
    background: rgba(154, 106, 255, 0.1);
    border-color: var(--neon-purple);
    transform: translateY(-2px);
}

.glow-btn {
    position: relative;
    overflow: hidden;
}

.glow-btn::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(154, 106, 255, 0.3) 0%, transparent 70%);
    animation: rotate 3s linear infinite;
}

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

/* ============================================
   Hero Section
   ============================================ */

.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 100px;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
}

.gradient-orbs {
    position: absolute;
    width: 100%;
    height: 100%;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
}

.orb-1 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--neon-purple) 0%, transparent 70%);
    top: -100px;
    left: -100px;
}

.orb-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, var(--neon-blue) 0%, transparent 70%);
    top: 50%;
    right: -100px;
    animation-delay: -5s;
}

.orb-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--neon-pink) 0%, transparent 70%);
    bottom: -100px;
    left: 30%;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.1); }
}

.particles {
    position: absolute;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(154, 106, 255, 0.3), transparent),
        radial-gradient(2px 2px at 60% 70%, rgba(90, 155, 255, 0.3), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(255, 255, 255, 0.2), transparent),
        radial-gradient(1px 1px at 80% 10%, rgba(154, 106, 255, 0.2), transparent);
    background-size: 200% 200%;
    animation: particles 20s ease infinite;
}

@keyframes particles {
    0%, 100% { background-position: 0% 0%; }
    50% { background-position: 100% 100%; }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: var(--spacing-md);
    letter-spacing: -2px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue), var(--neon-pink));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradient-shift 3s ease infinite;
}

@keyframes gradient-shift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 20px);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: var(--spacing-xl);
}

.hero-stats {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-xl);
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-size: 48px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.stat-label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ============================================
   Sections
   ============================================ */

section {
    padding: var(--spacing-xl) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--neon-purple), var(--neon-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-secondary);
}

/* ============================================
   Features Section
   ============================================ */

.features-section {
    background: var(--bg-secondary);
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-md);
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-purple);
    box-shadow: 0 20px 40px rgba(154, 106, 255, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(154, 106, 255, 0.2), rgba(90, 155, 255, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--border-color);
}

.feature-icon .material-symbols-rounded {
    font-size: 32px;
    color: var(--neon-purple);
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.feature-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ============================================
   About Section
   ============================================ */

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.about-description {
    font-size: 17px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: var(--spacing-md);
}

.about-description strong {
    color: var(--neon-purple);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-secondary);
}

.about-feature-item .material-symbols-rounded {
    color: var(--neon-purple);
    font-size: 24px;
}

.about-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.visual-card {
    position: relative;
    width: 300px;
    height: 300px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.visual-glow {
    position: absolute;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(154, 106, 255, 0.3) 0%, transparent 70%);
    animation: rotate 10s linear infinite;
}

.visual-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.visual-content .material-symbols-rounded {
    font-size: 80px;
    color: var(--neon-purple);
    margin-bottom: var(--spacing-sm);
}

.visual-content h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    background: linear-gradient(135deg, rgba(154, 106, 255, 0.1), rgba(90, 155, 255, 0.1));
    position: relative;
    overflow: hidden;
}

.cta-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
}

.cta-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(154, 106, 255, 0.2) 0%, transparent 70%);
    animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.cta-title {
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 900;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.cta-subtitle {
    font-size: 20px;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

/* ============================================
   Contact Section
   ============================================ */

.contact-section {
    background: var(--bg-secondary);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.contact-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: var(--spacing-md);
    text-align: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.contact-card:hover {
    transform: translateY(-8px);
    border-color: var(--neon-purple);
    box-shadow: 0 20px 40px rgba(154, 106, 255, 0.2);
}

.contact-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(154, 106, 255, 0.2), rgba(90, 155, 255, 0.2));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
    border: 1px solid var(--border-color);
}

.contact-icon .material-symbols-rounded {
    font-size: 32px;
    color: var(--neon-purple);
}

.contact-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.contact-link {
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: var(--neon-purple);
    background: rgba(154, 106, 255, 0.1);
}

.contact-link .material-symbols-rounded {
    font-size: 20px;
}

/* ============================================
   Footer
   ============================================ */

.main-footer {
    background: #000;
    padding: var(--spacing-xl) 0 var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 24px;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
}

.footer-description {
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.6;
}

.footer-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--neon-purple);
    transform: translateX(4px);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: rgba(154, 106, 255, 0.1);
    border-color: var(--neon-purple);
    color: var(--neon-purple);
    transform: translateY(-4px);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 14px;
}

.footer-tagline {
    margin-top: var(--spacing-sm);
    color: var(--neon-purple);
    font-weight: 600;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }
    
    .hero-actions {
        flex-direction: column;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

/* Scroll Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}