/* Base Styles */
:root {
    --primary-gradient: linear-gradient(to right, #3b82f6, #14b8a6);
    --secondary-gradient: linear-gradient(to right bottom, #f8fafc, #e0f2fe, #ccfbf1);
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --border-color: #e5e7eb;
    --white: #ffffff;
    --blue-500: #3b82f6;
    --teal-500: #14b8a6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--secondary-gradient);
    min-height: 100vh;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Hero Section */
.hero {
    padding: 3rem 0 5rem;
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 9999px;
    margin-bottom: 1.5rem;
    backdrop-filter: blur(8px);
}

.sparkle-icon {
    width: 1.5rem;
    height: 1.5rem;
    color: var(--blue-500);
}

.badge span {
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    color: transparent;
    font-weight: 600;
}

h1 {
    font-size: 3.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

h1 span {
    display: block;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    color: transparent;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2rem;
}

/* Stats */
.stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.stat-item svg {
    width: 1rem;
    height: 1rem;
}

/* Upload Section */
.upload-section {
    max-width: 42rem;
    margin: 0 auto 5rem;
}

.upload-zone {
    border: 2px dashed var(--border-color);
    border-radius: 1rem;
    padding: 3rem;
    background: rgba(255, 255, 255, 0.6);
    backdrop-filter: blur(8px);
    transition: all 0.3s ease;
}

.upload-zone:hover,
.upload-zone.drag-active {
    border-color: var(--blue-500);
    background: rgba(255, 255, 255, 0.8);
    transform: scale(1.02);
}

.upload-content {
    text-align: center;
}

.upload-icon {
    width: 5rem;
    height: 5rem;
    margin: 0 auto 1.5rem;
    padding: 1rem;
    background: rgba(59, 130, 246, 0.1);
    border-radius: 9999px;
    color: var(--blue-500);
}

.upload-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.upload-content p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 24rem;
    margin-left: auto;
    margin-right: auto;
}

.upload-button {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--white);
    background: var(--primary-gradient);
    border: none;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.upload-button:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.2);
}

.upload-button svg {
    width: 1.25rem;
    height: 1.25rem;
}

.upload-info {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: rgba(255, 255, 255, 0.4);
    backdrop-filter: blur(8px);
    text-align: center;
}

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

.features > p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 4rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    padding: 0 1rem;
}

.feature-card {
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: scale(1.05);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    padding: 0.875rem;
    background: #f3f4f6;
    border-radius: 0.75rem;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.feature-card p {
    color: var(--text-secondary);
}

/* Conversion Progress */
.conversion-progress {
    background: rgba(255, 255, 255, 0.6);
    border-radius: 1rem;
    padding: 2rem;
    text-align: center;
    backdrop-filter: blur(8px);
}

.progress-bar {
    width: 100%;
    height: 0.5rem;
    background: #e5e7eb;
    border-radius: 9999px;
    margin: 1.5rem 0;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary-gradient);
    transition: width 0.3s ease;
}

/* Ad Container */
.ad-container {
    max-width: 728px;
    margin: 2rem auto;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.6);
    border-radius: 0.5rem;
    backdrop-filter: blur(8px);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .stats {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
    }

    .upload-zone {
        padding: 2rem 1rem;
    }

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

@media (max-width: 480px) {
    h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }

    .upload-button {
        padding: 0.75rem 1.5rem;
        font-size: 1rem;
    }
}