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

:root {
    /* Colors */
    --primary: #7c3aed;
    --primary-dark: #6d28d9;
    --secondary: #f97316;
    --accent: #ec4899;
    --bg-light: #fef3f2;
    --bg-white: #ffffff;
    --text-dark: #1f2937;
    --text-gray: #6b7280;
    --text-light: #9ca3af;
    
    /* Gradients */
    --gradient-1: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
    --gradient-2: linear-gradient(135deg, #f97316 0%, #ec4899 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;
    
    /* Typography */
    --font-sans: 'Nunito Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Helvetica Neue', sans-serif;
    --font-display: 'Nunito Sans', 'Georgia', 'Times New Roman', serif;
    
    /* Borders */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.15);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    color: var(--text-dark);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

/* Typography */
h1, h2, h3, h4 {
    line-height: 1.2;
    font-weight: 700;
}

.gradient-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: var(--radius-md);
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    white-space: nowrap;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: var(--shadow-md);
}

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

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

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

/* Header */
.header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: var(--spacing-sm) 0;
    z-index: 100;
}

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

.logo {
    display: block;
    text-decoration: none;
}

.logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.footer-logo {
    height: 35px;
    margin-bottom: var(--spacing-sm);
}

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

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

/* Hero Section */
.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, var(--bg-light) 0%, white 100%);
    overflow: hidden;
}

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

.hero-title {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-display);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: flex-start;
}

/* Download Buttons */
.download-buttons {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.store-button {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    background: #000;
    color: white;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
    min-width: 160px;
}

.store-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: #1a1a1a;
}

.store-icon {
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.store-label {
    font-size: 0.7rem;
    opacity: 0.9;
    line-height: 1;
    margin-bottom: 2px;
}

.store-name {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1;
}

.download-buttons-large {
    justify-content: center;
}

.store-button-large {
    padding: 16px 32px;
    min-width: 180px;
}

.store-button-large .store-icon {
    width: 32px;
    height: 32px;
}

.store-button-large .store-label {
    font-size: 0.75rem;
}

.store-button-large .store-name {
    font-size: 1.25rem;
}

.small-text {
    color: var(--text-light);
    font-size: 0.875rem;
}

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    width: 320px;
    height: 670px;
    background: linear-gradient(145deg, #1f2937, #111827);
    border-radius: 40px;
    padding: 12px;
    box-shadow: var(--shadow-xl);
    position: relative;
}

.phone-mockup::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 24px;
    background: #111827;
    border-radius: 0 0 20px 20px;
    z-index: 1;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
}

.app-screen-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Floating memory cards */
.hero-visual {
    position: relative;
}

.floating-memory {
    position: absolute;
    width: 200px;
    height: auto;
    border-radius: 12px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
    opacity: 0;
    animation: fadeInFloat 0.8s ease-out forwards;
    transition: transform 0.1s ease-out;
}

/* Individual card positions */
.floating-memory-1 {
    left: -10%;
    top: 6%;
    animation-delay: 0s;
}

.floating-memory-2 {
    right: -10%;
    top: 15%;
    animation-delay: 0.2s;
}

.floating-memory-3 {
    left: -5%;
    bottom: 9%;
    animation-delay: 0.4s;
}

.floating-memory-4 {
    right: -5%;
    bottom: 6%;
    animation-delay: 0.6s;
}

/* Fade in animation */
@keyframes fadeInFloat {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Problem Section */
.problem {
    padding: var(--spacing-xl) 0;
    background: white;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    font-family: var(--font-display);
}

.section-subtitle {
    font-size: 1.25rem;
    text-align: center;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    line-height: 1.6;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.problem-card {
    text-align: center;
    padding: var(--spacing-md);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.problem-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.problem-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Solution Section */
.solution {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, #7c3aed 0%, #ec4899 100%);
    color: white;
}

.solution .section-title,
.solution .section-subtitle {
    color: white;
}

.solution .gradient-text {
    background: white;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-style: italic;
}

/* How It Works */
.how-it-works {
    padding: var(--spacing-xl) 0;
    background: white;
}

.steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

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

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-1);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
    box-shadow: var(--shadow-md);
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
}

.step p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Benefits Section */
.benefits {
    padding: var(--spacing-xl) 0;
    background: var(--bg-light);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.benefit-card {
    background: white;
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.benefit-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.benefit-card p {
    color: var(--text-gray);
    line-height: 1.6;
}

/* Testimonial */
.testimonial {
    padding: var(--spacing-xl) 0;
    background: white;
}

.testimonial-card {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    text-align: center;
}

.testimonial-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.testimonial-author {
    color: var(--text-gray);
}

/* CTA Section */
.cta {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(180deg, white 0%, var(--bg-light) 100%);
}

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

.cta-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
    font-family: var(--font-display);
}

.cta-subtitle {
    font-size: 1.25rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
}

.cta-content .download-buttons {
    margin-bottom: var(--spacing-sm);
}

/* Footer */
.footer {
    padding: var(--spacing-lg) 0 var(--spacing-md);
    background: var(--text-dark);
    color: white;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-brand p {
    color: var(--text-light);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}

.footer-column h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1rem;
}

.footer-column a {
    display: block;
    color: var(--text-light);
    text-decoration: none;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        padding: var(--spacing-md) 0;
    }

    .hero .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-visual {
        order: -1;
    }
    
    .phone-mockup {
        width: 235px;
        height: 500px;
    }
    
    .floating-memory {
        width: 155px;
    }
    
    .floating-memory-1 {
        left: -15%;
        top: 5%;
    }
    
    .floating-memory-2 {
        right: -15%;
        top: 15%;
    }
    
    .floating-memory-3 {
        left: -10%;
        bottom: 10%;
    }
    
    .floating-memory-4 {
        right: -10%;
        bottom: 5%;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .problem-grid,
    .steps,
    .benefits-grid {
        grid-template-columns: 1fr;
    }
    
    .nav {
        gap: var(--spacing-sm);
    }
    
    .nav-link {
        display: none;
    }
    
    .download-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .store-button {
        width: 100%;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
}

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

.hero-content,
.hero-visual {
    animation: fadeInUp 0.8s ease-out;
}

.hero-visual {
    animation-delay: 0.2s;
}