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

:root {
    --primary-color: #285DF2;
    --secondary-color: #285DF2;
    --accent-color: #285DF2;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --background: #ffffff;
    --surface: #f8fafc;
    --border: #e5e7eb;
    --shadow: 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);
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p {
    margin-bottom: 1em;
    color: var(--text-secondary);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    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: var(--transition);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: contain;
}

.logo h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 0 4rem;
    background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(40, 93, 242, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: var(--border-radius-lg);
    font-size: 1.125rem;
    font-weight: 600;
    box-shadow: var(--shadow-lg);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.badge-text {
    position: relative;
}

.badge-text::before {
    content: '✨';
    position: absolute;
    left: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    animation: sparkle 1.5s ease-in-out infinite;
}

@keyframes sparkle {
    0%, 100% { opacity: 0.7; transform: translateY(-50%) scale(1); }
    50% { opacity: 1; transform: translateY(-50%) scale(1.2); }
}

/* Hero Image */
.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-mockup {
    width: 300px;
    height: 600px;
    background: linear-gradient(145deg, #1e293b 0%, #334155 100%);
    border-radius: 30px;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 3rem;
}

.app-mockup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    border-radius: 30px 30px 0 0;
}

.app-mockup::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 2px;
}

.app-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    border-radius: 16px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    z-index: 2;
    position: relative;
}

.mockup-screen {
    width: 100%;
    height: 100%;
    background: var(--surface);
    border-radius: 20px;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding: 2rem 1rem;
    position: relative;
    z-index: 1;
}

.subtitle-demo {
    background: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    text-align: center;
    width: 100%;
    animation: subtitleGlow 2s ease-in-out infinite alternate;
}

@keyframes subtitleGlow {
    0% { box-shadow: 0 0 10px rgba(59, 130, 246, 0.3); }
    100% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.6); }
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--background);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 3rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: var(--surface);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    display: block;
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

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

/* Use Cases Section */
.use-cases {
    padding: 6rem 0;
    background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.use-case-card {
    background: var(--background);
    padding: 2rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

.use-case-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.use-case-card:hover::before {
    transform: scaleX(1);
}

.use-case-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.use-case-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    display: block;
}

.use-case-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.use-case-description {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Footer Section */

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: 3rem 0 1rem;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.footer-section {
    text-align: left;
}

.footer-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: white;
    margin-bottom: 1rem;
}

.footer-text {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 1rem;
}

.footer-divider {
    height: 1px;
    background: rgba(255, 255, 255, 0.2);
    margin-bottom: 1rem;
}

.footer-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    text-align: center;
}

.icp-info {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

.icp-link {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.icp-link:hover {
    color: white;
    text-decoration: underline;
}

.icp-link::after {
    content: '↗';
    position: absolute;
    right: -1rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.6rem;
    opacity: 0.7;
}

.copyright {
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
    margin: 0;
}

/* Hero Visual with Preference Image */
.hero-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    position: relative;
}

.preference-showcase {
    position: relative;
    max-width: 400px;
    margin-right: 2rem;
}

.preference-image {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transition: var(--transition);
    border: 2px solid var(--border);
}

.preference-image:hover {
    transform: scale(1.02);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.image-caption {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-container {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .hero-visual {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .preference-showcase {
        margin-right: 0;
        max-width: 300px;
        margin-bottom: 2rem;
    }
    
    .app-mockup {
        width: 250px;
        height: 500px;
    }
    
    .app-logo {
        width: 60px;
        height: 60px;
        margin-bottom: 1.5rem;
    }
    
    .logo-img {
        width: 32px;
        height: 32px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .use-cases-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-container {
        padding: 0 1rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .coming-soon-badge {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
    
    .preference-showcase {
        max-width: 250px;
        margin-bottom: 1.5rem;
    }
    
    .image-caption {
        font-size: 0.75rem;
    }
    
    .app-mockup {
        width: 200px;
        height: 400px;
    }
    
    .app-logo {
        width: 50px;
        height: 50px;
        margin-bottom: 1rem;
    }
    
    .logo-img {
        width: 28px;
        height: 28px;
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
    
    .feature-card,
    .use-case-card {
        padding: 1.5rem;
    }
    
    .feature-icon,
    .use-case-icon {
        font-size: 2rem;
    }
    
    .footer-container {
        padding: 0 1rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --text-primary: #f9fafb;
        --text-secondary: #d1d5db;
        --background: #111827;
        --surface: #1f2937;
        --border: #374151;
    }
    
    .header {
        background: rgba(17, 24, 39, 0.95);
    }
    
    .hero {
        background: linear-gradient(135deg, var(--surface) 0%, var(--background) 100%);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --background: #ffffff;
        --surface: #f5f5f5;
        --border: #666666;
    }
}

/* Focus styles for accessibility */
button:focus,
input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer {
        display: none;
    }
    
    .hero {
        min-height: auto;
        padding: 2rem 0;
    }
    
    .coming-soon-badge {
        animation: none;
    }
}