/* Reset and base styles with smooth scrolling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
    background-image: radial-gradient(circle at 10% 20%, rgba(234, 249, 255, 0.5) 0%, rgba(239, 246, 255, 0.5) 90%);
}

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

header {
    text-align: center;
    padding: 40px 0 20px;
    position: relative;
}

header h1 {
    font-size: 2.8rem;
    color: #2c3e50;
    margin-bottom: 10px;
    font-weight: 700;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

header p {
    font-size: 1.3rem;
    color: #7f8c8d;
    max-width: 700px;
    margin: 0 auto;
}

/* Download section - moved before screenshot */
.download-section {
    text-align: center;
    padding: 30px;
    background: #fff;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    margin: 30px auto;
    max-width: 600px;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255,255,255,0.3);
    backdrop-filter: blur(5px);
}

.download-section h2 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 1.8rem;
}

.download-section p {
    margin-bottom: 25px;
    color: #7f8c8d;
    font-size: 1.05rem;
}

.download-btn {
    background-color: #3498db;
    color: white;
    border: none;
    padding: 15px 35px;
    font-size: 1.2rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(50, 150, 220, 0.2);
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: 0.5s;
}

.download-btn:hover {
    background-color: #2980b9;
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(41, 128, 185, 0.4);
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(41, 128, 185, 0.4);
}

.download-btn i {
    font-size: 1.1rem;
}

/* App preview section */
.app-preview {
    text-align: center;
    margin: 30px 0 50px;
    position: relative;
}

.screenshot {
    max-width: 320px;
    border-radius: 20px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 10px solid white;
}

.screenshot:hover {
    transform: scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

/* Loader and download info */
.loader {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 35px;
    height: 35px;
    animation: spin 1s linear infinite;
    margin: 25px auto;
    display: none;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.download-info {
    margin-top: 15px;
    color: #27ae60;
    font-weight: bold;
    font-size: 1.05rem;
    display: none;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Features section */
.features {
    margin: 60px 0;
}

.features h2 {
    text-align: center;
    margin-bottom: 40px;
    color: #2c3e50;
    font-size: 2rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.features h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #3498db, #9b59b6);
    border-radius: 3px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
    gap: 30px;
}

.feature {
    background: #fff;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.06);
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    border: 1px solid rgba(0,0,0,0.03);
}

.feature:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
}

.feature i {
    font-size: 2.8rem;
    color: #3498db;
    margin-bottom: 20px;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.feature h3 {
    margin-bottom: 15px;
    color: #2c3e50;
    font-size: 1.3rem;
}

.feature p {
    color: #7f8c8d;
    font-size: 1rem;
    line-height: 1.7;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    margin-top: 70px;
    color: #7f8c8d;
    font-size: 0.95rem;
    background: rgba(255,255,255,0.7);
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.03);
}

.privacy-btn {
    background-color: transparent;
    color: #3498db;
    border: 1px solid #3498db;
    padding: 10px 25px;
    font-size: 1rem;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
    font-weight: 500;
}

.privacy-btn:hover {
    background-color: #3498db;
    color: white;
    box-shadow: 0 5px 15px rgba(52, 152, 219, 0.3);
}

.privacy-btn i {
    font-size: 1rem;
}

/* Responsive design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2.2rem;
    }
    
    header p {
        font-size: 1.1rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .download-section {
        padding: 25px 20px;
    }
    
    .download-btn {
        padding: 12px 25px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.8rem;
    }
    
    .download-section h2 {
        font-size: 1.5rem;
    }
    
    .screenshot {
        max-width: 280px;
    }
    }