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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #1e3c72, #373636);
    min-height: 100vh;
    padding: 20px;
    margin-bottom: 60px;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.header {
    background: linear-gradient(358deg, #1e3c72, #373636);
    color: white;
    padding: 40px;
    text-align: center;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.versionE {
    font-size: 1.2rem;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

.content {
    padding: 40px;
}

.extensions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.extension-card {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    border: 2px solid #e9ecef;
    transition: all 0.3s ease;
}

.extension-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    border-color: #4facfe;
}

.extension-title {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.extension-title h2 {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-left: 10px;
    margin-right: 10px;
}

.browser-icon {
    height: 40px;
    border-radius: 8px;
    display: flex;
    /*align-items: center;*/
    justify-content: center;
    font-weight: bold;
    color: white;
}

.download-btn {
    background: linear-gradient(135deg, #1e3c72, #373636);
    color: white;
    padding: 12px 25px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    margin-bottom: 20px;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.install-steps {
    background: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.install-steps h3 {
    color: #2c3e50;
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.install-steps ol {
    padding-left: 20px;
}

.install-steps li {
    margin-bottom: 8px;
    color: #555;
}

.features {
    background: #f8f9fa;
    border-radius: 15px;
    padding: 30px;
    margin-top: 30px;
}

.features h2 {
    color: #2c3e50;
    margin-bottom: 20px;
    text-align: center;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(301px, 1fr));
    gap: 20px;
}

.feature-item {
    background: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.feature-item h3 {
    color: #2c3e50;
    margin-bottom: 10px;
}

.feature-item p {
    color: #666;
}

.note {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 15px;
    margin-top: 20px;
    color: #856404;
}

@media (max-width: 768px) {
    .extensions-grid {
        grid-template-columns: 1fr;
    }

    .header h1 {
        font-size: 2rem;
    }

    .content {
        padding: 20px;
    }
}

.info-icon {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 24px;
    height: 24px;
    background-color: #00b9fe;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    z-index: 100;
    font-weight: bold;
    box-shadow: 0 2px 5px rgba(0,0,0,0.3);
    color: #fff;
    transition: background-color 0.3s ease;
}

.info-icon:hover {
    background-color: #006494;
}

.tooltip {
    position: absolute;
    bottom: 40px;
    right: -10px;
    width: 380px;
    background-color: #1e3c72;
    color: white;
    padding: 12px;
    border-radius: 10px;
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
    box-shadow: 0 3px 8px rgba(0,0,0,0.3);
    text-align: center;
}

.info-icon:hover .tooltip {
    opacity: 1;
    visibility: visible;
}

.tooltip:after {
    content: "";
    position: absolute;
    top: 100%;
    right: 15px;
    border-width: 8px;
    border-style: solid;
    border-color: #1e3c72 transparent transparent transparent;
}

.tooltip a:link,
.tooltip a:visited,
.tooltip a:hover,
.tooltip a:active {
    text-decoration: none;
    color: rgba(11, 232, 18, 0.58);
}

.tooltip a:hover {
    color: rgba(11, 232, 18, 0.8);
}

.header-text {
    margin-bottom: 20px;
}

.version-text {
    font-size: 0.7rem;
}

.video-container {
    display: block;
    margin: 0 auto;
}

.list-header {
    margin-top: 20px;
}

@media (max-width: 870px) {
    .video-container {
        width: 100%;
        max-width: 480px; /* or any size that fits well */
        height: auto;
    }
}