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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: #333;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
    font-size: 1.2rem;
    color: #2563eb;
}

.nav-brand i {
    font-size: 1.5rem;
}

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

.nav-links a {
    text-decoration: none;
    color: #333;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #2563eb;
}

.btn-primary {
    background: #2563eb;
    color: white !important;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background 0.3s;
}

.btn-primary:hover {
    background: #1d4ed8;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.btn-download {
    background: white;
    color: #333;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.btn-download.large {
    padding: 1rem 2rem;
    flex-direction: column;
    align-items: flex-start;
}

.btn-download.large div {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.hero-note {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Phone Mockup */
.phone-mockup {
    position: relative;
    width: 280px;
    height: 560px;
    background: #333;
    border-radius: 30px;
    padding: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
}

.phone-screen {
    background: white;
    border-radius: 20px;
    height: 100%;
    overflow: hidden;
}

.app-interface {
    padding: 20px;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 2rem;
    color: #666;
    font-size: 0.9rem;
}

.camera-view {
    background: #f3f4f6;
    border-radius: 12px;
    height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin-bottom: 2rem;
    color: #9ca3af;
    border: 2px dashed #d1d5db;
}

.weather-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.weather-tag {
    background: #e5e7eb;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: #374151;
}

.submit-btn {
    background: #2563eb;
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 8px;
    width: 100%;
    font-weight: 600;
    cursor: pointer;
}

/* Problem Section */
.problem {
    padding: 80px 0;
    background: #f9fafb;
}

.problem h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #111827;
}

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

.problem-item {
    text-align: center;
    padding: 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.problem-item i {
    font-size: 2.5rem;
    color: #ef4444;
    margin-bottom: 1rem;
}

.problem-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: #111827;
}

/* How It Works */
.how-it-works {
    padding: 80px 0;
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #111827;
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.step {
    position: relative;
    text-align: center;
}

.step-number {
    width: 60px;
    height: 60px;
    background: #2563eb;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

.step-content h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: #111827;
}

.step-content i {
    font-size: 2rem;
    color: #6b7280;
    margin-top: 1rem;
}

/* Features */
.features {
    padding: 80px 0;
    background: #f9fafb;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #111827;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    text-align: center;
}

.feature i {
    font-size: 2.5rem;
    color: #2563eb;
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: #111827;
}

/* Stats */
.stats {
    padding: 80px 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.stats h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

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

.stat {
    text-align: center;
}

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

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

/* Testimonials */
.testimonials {
    padding: 80px 0;
}

.testimonials h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: #111827;
}

.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
}

.testimonial {
    background: #f9fafb;
    padding: 2rem;
    border-radius: 12px;
    border-left: 4px solid #2563eb;
}

.quote p {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 1rem;
    color: #374151;
}

.author-info strong {
    color: #111827;
    display: block;
}

.author-info span {
    color: #6b7280;
    font-size: 0.9rem;
}

/* CTA */
.cta {
    padding: 80px 0;
    background: #111827;
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta p {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 1rem;
}

.cta-note {
    font-size: 0.9rem;
    opacity: 0.7;
}

/* Footer */
.footer {
    background: #1f2937;
    color: white;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: bold;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: #d1d5db;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #374151;
    color: #9ca3af;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn-download.large {
        width: 100%;
        text-align: center;
        align-items: center;
    }
}