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

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --accent: #f093fb;
    --text-primary: #1a202c;
    --text-secondary: #4a5568;
    --text-light: #718096;
    --bg-primary: #ffffff;
    --bg-secondary: #f7fafc;
    --bg-dark: #1a202c;
    --border: #e2e8f0;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    width: 40px;
    height: 40px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--primary);
}

.nav-cta {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white !important;
    padding: 10px 24px;
    border-radius: 8px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: 140px 0 80px;
    background: linear-gradient(135deg, #667eea08, #764ba208);
    position: relative;
    overflow: hidden;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-text {
    z-index: 2;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    animation: float 3s ease-in-out infinite;
}

.badge-icon {
    animation: rotate 3s linear infinite;
}

.hero-title {
    font-size: 56px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--text-primary);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 18px;
    color: var(--text-secondary);
    margin-bottom: 32px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    box-shadow: var(--shadow-lg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.btn-large {
    padding: 18px 40px;
    font-size: 18px;
}

.hero-stats {
    display: flex;
    gap: 48px;
}

.stat {
    text-align: left;
}

.stat-value {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 4px;
}

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

/* Hero Visual */
.hero-visual {
    position: relative;
    height: 500px;
}

.visual-card {
    position: absolute;
    background: white;
    border-radius: 16px;
    padding: 20px;
    box-shadow: var(--shadow-xl);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.visual-card:hover {
    transform: translateY(-5px);
}

.card-1 {
    top: 0;
    left: 0;
    width: 280px;
    animation: float 4s ease-in-out infinite;
}

.card-2 {
    top: 160px;
    left: 60px;
    width: 320px;
    animation: float 5s ease-in-out infinite;
    animation-delay: 0.5s;
}

.card-3 {
    top: 320px;
    left: 20px;
    width: 260px;
    animation: float 4.5s ease-in-out infinite;
    animation-delay: 1s;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.card-icon {
    font-size: 24px;
}

.card-title {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 14px;
}

.card-content {
    font-size: 15px;
    color: var(--text-primary);
    line-height: 1.6;
}

.progress-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.progress-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.progress-item span {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.progress-bar {
    height: 8px;
    background: #e2e8f0;
    border-radius: 100px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 100px;
    animation: progress 2s ease-in-out infinite;
}

.result-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.result-name {
    font-weight: 600;
    font-size: 16px;
    color: var(--text-primary);
}

.result-rating {
    font-size: 14px;
    color: var(--text-secondary);
}

.result-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
}

.floating-shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 8s ease-in-out infinite;
}

.shape-1 {
    width: 100px;
    height: 100px;
    background: var(--primary);
    top: 50px;
    right: 50px;
}

.shape-2 {
    width: 150px;
    height: 150px;
    background: var(--secondary);
    bottom: 50px;
    right: 150px;
    animation-delay: 1s;
}

.shape-3 {
    width: 80px;
    height: 80px;
    background: var(--accent);
    top: 200px;
    right: 0;
    animation-delay: 2s;
}

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-primary);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.section-description {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

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

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.feature-description {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Architecture Section */
.architecture {
    padding: 100px 0;
    background: var(--bg-secondary);
}

.architecture-diagram {
    max-width: 900px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.arch-layer {
    background: white;
    border-radius: 16px;
    padding: 32px;
    box-shadow: var(--shadow-md);
}

.arch-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 20px;
    text-align: center;
}

.arch-components {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.arch-component {
    flex: 1;
    min-width: 200px;
    padding: 20px;
    background: linear-gradient(135deg, #667eea08, #764ba208);
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease;
}

.arch-component:hover {
    transform: scale(1.05);
}

.component-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.component-name {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.component-desc {
    font-size: 13px;
    color: var(--text-secondary);
}

.arch-arrow {
    font-size: 32px;
    text-align: center;
    color: var(--primary);
    font-weight: 700;
}

/* Tech Stack Section */
.tech-stack {
    padding: 100px 0;
    background: var(--bg-primary);
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.tech-category {
    background: white;
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: all 0.3s ease;
}

.tech-category:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

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

.tech-items {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tech-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: 8px;
    transition: all 0.3s ease;
}

.tech-item:hover {
    background: linear-gradient(135deg, #667eea08, #764ba208);
    transform: translateX(8px);
}

.tech-icon {
    font-size: 24px;
}

.tech-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Demo Section */
.demo {
    padding: 100px 0;
    background: linear-gradient(135deg, #667eea08, #764ba208);
}

.demo-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 40px;
    max-width: 1100px;
    margin: 0 auto;
}

.demo-chat {
    background: white;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    height: 600px;
    display: flex;
    flex-direction: column;
}

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
}

.chat-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: #48bb78;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

.chat-actions {
    display: flex;
    gap: 12px;
}

.chat-action {
    width: 32px;
    height: 32px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

.chat-action:hover {
    background: rgba(255, 255, 255, 0.3);
}

.chat-messages {
    flex: 1;
    padding: 24px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.message {
    display: flex;
    gap: 12px;
    animation: slideIn 0.3s ease;
}

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.bot-avatar {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    font-size: 18px;
}

.user-avatar {
    background: #e2e8f0;
    font-size: 18px;
}

.message-content {
    flex: 1;
}

.message-text {
    background: var(--bg-secondary);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-primary);
}

.bot-message .message-text {
    background: linear-gradient(135deg, #667eea08, #764ba208);
}

.message-time {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 6px;
    padding-left: 16px;
}

.chat-input {
    display: flex;
    gap: 12px;
    padding: 20px 24px;
    border-top: 1px solid var(--border);
}

.demo-input-field {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.3s ease;
}

.demo-input-field:focus {
    outline: none;
    border-color: var(--primary);
}

.send-btn {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border: none;
    border-radius: 10px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.send-btn:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow-lg);
}

.demo-info {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.demo-info-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.demo-steps {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.demo-step {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-number {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    flex-shrink: 0;
}

.step-content h4 {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
    color: var(--text-primary);
}

.step-content p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
}

.demo-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.metric {
    background: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
}

.metric-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 6px;
}

.metric-label {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Benefits Section */
.benefits {
    padding: 100px 0;
    background: var(--bg-primary);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.benefit-card {
    text-align: center;
    padding: 32px 24px;
}

.benefit-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.benefit-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.benefit-card p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* CTA Section */
.cta {
    padding: 100px 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
}

.cta-title {
    font-size: 42px;
    font-weight: 800;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 18px;
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
}

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

.cta .btn-secondary {
    background: transparent;
    color: white;
    border-color: white;
}

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

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-dark);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-description {
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    line-height: 1.7;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--primary);
    transform: translateY(-3px);
}

.footer-title {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 16px;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: white;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
}

.footer-bottom p {
    margin: 8px 0;
}

/* Animations */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

@keyframes progress {
    0%, 100% {
        transform: scaleX(1);
    }
    50% {
        transform: scaleX(0.95);
    }
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 968px) {
    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 40px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-visual {
        height: 400px;
        margin-top: 40px;
    }

    .demo-container {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
    }

    .section-title {
        font-size: 32px;
    }

    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 32px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }

    .arch-components {
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }
}

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

/* Selection */
::selection {
    background: var(--primary);
    color: white;
}

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

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

::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 5px;
}

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