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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f5f5;
}

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

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: 15px 0;
}

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

.brand {
    font-size: 1.5em;
    font-weight: 700;
    color: #2ecc71;
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-links a {
    color: #2c3e50;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: #2ecc71;
}

/* Hero */
.hero {
    margin-top: 70px;
    position: relative;
    width: 100%;
    overflow: hidden;
}

.hero-banner {
    width: 100%;
    height: auto;
    display: block;
}

.hero-overlay {
    position: absolute;
    bottom: 40px;
    left: 0;
    right: 0;
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 15px 40px;
    font-size: 1.1em;
    text-decoration: none;
    border-radius: 50px;
    transition: all 0.3s;
    font-weight: 600;
}

.btn-primary {
    background: #e74c3c;
    color: white;
    box-shadow: 0 10px 30px rgba(231, 76, 60, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(231, 76, 60, 0.4);
}

.btn-secondary {
    background: #3498db;
    color: white;
    box-shadow: 0 10px 30px rgba(52, 152, 219, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(52, 152, 219, 0.4);
}

/* Features */
.features {
    padding: 80px 20px;
    background: white;
}

.features h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 60px;
    color: #2c3e50;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.feature-card {
    background: #f8f9fa;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.1);
}

.icon {
    font-size: 3em;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5em;
    margin-bottom: 15px;
    color: #2c3e50;
}

.feature-card p {
    color: #666;
    line-height: 1.8;
}

/* Dhikr Library */
.dhikr-library {
    padding: 80px 20px;
    background: #f8f9fa;
}

.dhikr-library h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 60px;
    color: #2c3e50;
}

.dhikr-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    max-width: 1000px;
    margin: 0 auto;
}

.dhikr-item {
    background: white;
    padding: 20px 30px;
    border-radius: 10px;
    text-align: center;
    font-size: 1.1em;
    font-weight: 500;
    color: #2c3e50;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.dhikr-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Download */
.download {
    padding: 80px 20px;
    background: white;
}

.download h2 {
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 60px;
    color: #2c3e50;
}

.download-box {
    max-width: 600px;
    margin: 0 auto;
    background: #f8f9fa;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.1);
}

.download-box h3 {
    font-size: 1.8em;
    margin-bottom: 15px;
    color: #2c3e50;
}

.version-info {
    color: #666;
    margin-bottom: 30px;
}

.note {
    margin-top: 20px;
    color: #666;
    font-size: 0.95em;
}

/* Support */
.support {
    padding: 80px 20px;
    background: #f8f9fa;
    text-align: center;
}

.support h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
    color: #2c3e50;
}

.support p {
    font-size: 1.2em;
    margin-bottom: 30px;
    color: #666;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background: #2c3e50;
    color: white;
    padding: 40px 20px;
    text-align: center;
}

.footer p {
    margin-bottom: 10px;
}

.footer a {
    color: #3498db;
    text-decoration: none;
}

.footer a:hover {
    text-decoration: underline;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-overlay {
        bottom: 20px;
    }

    .btn-primary,
    .btn-secondary {
        padding: 12px 30px;
        font-size: 1em;
    }

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

    .dhikr-list {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 15px;
        font-size: 0.9em;
    }
}