/* General Body Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #333;
    line-height: 1.6;
}

/* Page Layout */
.page-wrapper {
    display: flex;
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 20px;
    gap: 2rem;
}

.main-content {
    flex: 3; /* Takes 3/4 of the space */
}

.ad-sidebar {
    flex: 1; /* Takes 1/4 of the space */
    background-color: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    height: fit-content;
}

.ad-sidebar h3 {
    font-size: 1.2rem;
    color: #1976D2;
    border-bottom: 2px solid #e3f2fd;
    padding-bottom: 0.5rem;
    margin-bottom: 1rem;
}

.ad-placeholder {
    width: 100%;
    height: 600px; /* Standard skyscraper ad height */
    background-color: #e9ecef;
    border: 2px dashed #ced4da;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #6c757d;
    font-size: 1rem;
    border-radius: 6px;
}

/* Hero Section */
.hero {
    background: white;
    padding: 3rem 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    font-weight: 700;
    background: linear-gradient(45deg, #2196F3, #1976D2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: 1rem;
}

.hero p.subtitle {
    font-size: 1.25rem;
    color: #555;
    margin-bottom: 2rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-button {
    display: inline-block;
    background: linear-gradient(45deg, #2196F3, #1976D2);
    color: white;
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.4);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.5);
}

/* Features Section */
.features {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.08);
}

.feature-card .icon {
    font-size: 2.5rem;
    color: #1976D2;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

.feature-card p {
    font-size: 0.95rem;
    color: #666;
}

/* Footer */
.footer {
    text-align: center;
    padding: 2rem 0;
    margin-top: 2rem;
    color: #777;
    border-top: 1px solid #e9ecef;
}