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

body {
    font-family: 'Helvetica', 'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 107, 53, 0.1);
    backdrop-filter: blur(20px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
}

.header.scrolled {
    background: rgba(255, 107, 53, 0.95);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

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

.nav-brand {
    display: flex;
    align-items: center;
}

.logo {
    width: 32px;
    height: 32px;
}

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

.nav-item {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-link:hover {
    opacity: 0.8;
}

.dropdown-arrow {
    font-size: 0.8rem;
    transition: transform 0.2s;
}

.dropdown-content {
    position: absolute;
    top: 100%;
    left: 0;
    background: #FFF8EA;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.15);
    padding: 1rem 0;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    z-index: 1001;
}

.nav-item:hover .dropdown-content {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav-item:hover .dropdown-arrow {
    transform: rotate(180deg);
}

.dropdown-content a {
    display: block;
    padding: 0.5rem 1.5rem;
    color: #333;
    text-decoration: none;
    transition: background-color 0.2s;
}

.dropdown-content a:hover {
    background-color: #FFF8EA;
}

.nav-actions {
    display: flex;
    gap: 1rem;
    align-items: center;
}

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

.mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: #FFF8EA;
    transition: all 0.3s ease;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: rgba(255, 255, 255, 0.2);
    color: #FFF8EA;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-outline-white {
    background: transparent;
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.5);
}

.btn-outline-dark {
    background: transparent;
    color: #333;
    border: 1px solid #ddd;
}

.btn-primary-large {
    background: #ff6b35;
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn-outline-large {
    background: transparent;
    color: #333;
    border: 2px solid #ddd;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #ff6b35 0%, #f7931e 30%, #ff8c42 70%, #ff6b35 100%);
}

.mountain-silhouette {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 400'%3E%3Cpath d='M0,400 L0,200 L100,150 L200,180 L300,120 L400,160 L500,100 L600,140 L700,80 L800,120 L900,60 L1000,100 L1100,40 L1200,80 L1200,400 Z' fill='%23000' fill-opacity='0.3'/%3E%3C/svg%3E") center bottom/cover no-repeat;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding-top: 100px;
}

.hero-title {
    font-size: clamp(2.7rem, 5vw, 6rem);
    font-weight: 260;
    margin-bottom: 1rem;
    line-height: 1.1;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 3rem;
    opacity: 0.9;
    font-weight: 300;
}

.chat-input-container {
    position: relative;
    max-width: 400px;
    margin: 0 auto 3rem;
}

.chat-input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    background: white;
    color: #333;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.chat-input::placeholder {
    color: #999;
}

.chat-send-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: #ff6b35;
    border: none;
    border-radius: 4px;
    padding: 0.5rem;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.chat-send-btn:hover {
    background: #e55a2b;
    transform: translateY(-50%) scale(1.05);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Partners Section */
.partners {
    padding: 4rem 0;
    background: #fffefc;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 2rem;
    align-items: center;
    justify-items: center;
}

.partner-logo img {
    height: 40px;
    width: auto;
    opacity: 0.6;
    transition: opacity 0.2s;
    filter: grayscale(100%);
}

.partner-logo:hover img {
    opacity: 1;
    filter: grayscale(0%);
}

/* Content Section */
.content-section {
    padding: 6rem 0;
    background: #FFF8EA;
}

.content-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.content-left {
    position: relative;
}

.section-title {
    font-size: 2rem;
    font-weight: 300;
    line-height: 1.2;
    color: #333;
}

.section-title-center {
    font-size: 3rem;
    font-weight: 300;
    text-align: center;
    margin-bottom: 1rem;
    color: #333;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 3rem;
}

.section-header {
    margin-bottom: 4rem;
}

.decorative-shapes {
    position: absolute;
    top: -2rem;
    right: -2rem;
}

.shape {
    position: absolute;
    border-radius: 12px;
}

.shape-1 {
    width: 80px;
    height: 60px;
    background: #fff3cd;
    top: 0;
    right: 0;
    transform: rotate(15deg);
}

.shape-2 {
    width: 60px;
    height: 80px;
    background: #ffeaa7;
    top: 2rem;
    right: 3rem;
    transform: rotate(-10deg);
}

.shape-3 {
    width: 40px;
    height: 40px;
    background: #fdcb6e;
    top: -1rem;
    right: 5rem;
    transform: rotate(25deg);
}

.content-title {
    font-size: 2rem;
    font-weight: 400;
    margin-bottom: 2rem;
    color: #333;
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
}

.feature-item:nth-child(2) {
    animation-delay: 0.2s;
}

.feature-item:nth-child(3) {
    animation-delay: 0.4s;
}

.feature-icon {
    color: #ff6b35;
    font-size: 1.2rem;
    font-weight: bold;
    margin-top: 0.2rem;
}

.feature-text {
    flex: 1;
    font-size: 1.1rem;
    line-height: 1.6;
}

/* Models Section */
.models-section {
    padding: 6rem 0;
    background: #FFF8EA;
}

.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.model-card {
    background: #fffefc;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    text-align: center;
}

.model-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.model-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.model-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.model-description {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.model-features {
    list-style: none;
    margin-bottom: 2rem;
}

.model-features li {
    padding: 0.5rem 0;
    color: #555;
    position: relative;
    padding-left: 1.5rem;
}

.model-features li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #ff6b35;
    font-weight: bold;
}

/* Use Cases Section */
.use-cases-section {
    padding: 6rem 0;
    background: #FFF8EA;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.use-case-card {
    background: #fffefc;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.use-case-image {
    height: 200px;
    overflow: hidden;
}

.use-case-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.use-case-content {
    padding: 2rem;
}

.use-case-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.use-case-content p {
    color: #666;
    line-height: 1.6;
}

/* Stats Section */
.stats-section {
    padding: 4rem 0;
    background: #ff6b35;
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1rem;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* CTA Section */
.cta-section {
    padding: 6rem 0;
    background: #f8f9fa;
    text-align: center;
}

.cta-content {
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2.5rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: #333;
}

.cta-subtitle {
    font-size: 1.2rem;
    color: #666;
    margin-bottom: 2rem;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 4rem 0 2rem;
}

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

.footer-brand {
    max-width: 300px;
}

.footer-logo {
    width: 32px;
    height: 32px;
    margin-bottom: 1rem;
}

.footer-description {
    color: #ccc;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    color: #ccc;
    text-decoration: none;
    transition: color 0.2s;
}

.social-link:hover {
    color: #ff6b35;
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: white;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: #ff6b35;
}

.footer-bottom {
    border-top: 1px solid #333;
    padding-top: 2rem;
    text-align: center;
    color: #999;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .header .nav-menu {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .content-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .section-title-center {
        font-size: 2rem;
    }
    
    .partners-grid {
        grid-template-columns: repeat(1, 1fr);
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn-primary-large,
    .btn-outline-large {
        width: 100%;
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .decorative-shapes {
        display: none;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}