* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', sans-serif;
}

body {
    background-color: #ffffff;
    color: #3c4043;
    padding-bottom: 80px; /* বাটনের জন্য নিচের জায়গা */
}

.app-container {
    max-width: 500px;
    margin: 0 auto;
    padding: 20px;
}

/* Header Section */
.app-header {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.app-icon img {
    width: 72px;
    height: 72px;
    border-radius: 15px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
    margin-right: 15px;
}

.app-info h1 {
    font-size: 24px;
    color: #202124;
}

.developer {
    color: #01875f;
    font-weight: 500;
    font-size: 14px;
}

.ads-info {
    font-size: 12px;
    color: #5f6368;
}

/* Stats Section */
.app-stats {
    display: flex;
    justify-content: space-around;
    padding: 15px 0;
    border-top: 1px solid #e8eaed;
    border-bottom: 1px solid #e8eaed;
    margin-bottom: 20px;
    text-align: center;
}

.stat-item .val {
    display: block;
    font-weight: 700;
    font-size: 14px;
}

.stat-item .lbl {
    font-size: 11px;
    color: #5f6368;
}

.border-side {
    border-left: 1px solid #e8eaed;
    border-right: 1px solid #e8eaed;
    padding: 0 20px;
}

/* Banner */
.main-banner img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* About text */
.about-section h2 {
    font-size: 18px;
    margin-bottom: 10px;
}

.about-section p {
    font-size: 14px;
    line-height: 1.5;
    color: #5f6368;
}

/* Sticky Bottom Button */
.footer-button-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #fff;
    padding: 15px;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.05);
    display: flex;
    justify-content: center;
}

.join-now-btn {
    width: 90%;
    max-width: 400px;
    background-color: #01875f; /* Play Store Green */
    color: white;
    text-align: center;
    text-decoration: none;
    padding: 12px 0;
    border-radius: 25px;
    font-size: 16px;
    font-weight: 500;
    transition: 0.3s;
}

.join-now-btn:hover {
    background-color: #016d4d;
}