/* RFC 2350 Page Styles */
.rfc2350-hero {
    padding: 140px 0 60px;
    background: url('../images/31.png') no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    color: #fff;
    text-align: center;
    position: relative;
}

.rfc2350-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    z-index: 1;
    animation: heroGlow 4s ease-in-out infinite;
}

.rfc2350-hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    margin: 0 auto;
    padding: 0 20px;
}

.rfc2350-section {
    padding: 5rem 0;
    background: #f8fafc;
}

.rfc2350-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.rfc2350-intro {
    text-align: center;
    margin-bottom: 3rem;
}

.rfc2350-description {
    font-size: 1.1rem;
    color: #374151;
    max-width: 700px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.pdf-preview-container {
    background: #fff;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
    margin-bottom: 3rem;
    animation: fadeInUp 0.6s ease-out;
}

.pdf-preview-header {
    background: linear-gradient(135deg, #4c4c4d 0%, #1e1c21 100%);
    color: white;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.pdf-preview-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.pdf-preview-wrapper {
    padding: 0;
}

.pdf-preview-toolbar {
    background: #f8fafc;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    border-bottom: 1px solid #e2e8f0;
}

.toolbar-btn {
    background: #fff;
    border: 1px solid #cbd5e1;
    color: #334155;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

.toolbar-btn:hover {
    background: linear-gradient(135deg, #4c4c4d 0%, #151515 100%);
    color: white;
    border-color: transparent;
}

.page-info {
    margin: 0 1rem;
    font-weight: 500;
    color: #334155;
}

.spacer {
    flex: 1;
}

.pdf-viewer-container {
    height: 600px;
    overflow: hidden;
}

.pdf-viewer {
    width: 100%;
    height: 100%;
    border: none;
}

.download-section {
    text-align: center;
    padding: 2rem;
    background: #f1f5f9;
    border-radius: 16px;
    margin-top: 2rem;
}

.download-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 1rem;
}

.download-description {
    color: #64748b;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: linear-gradient(135deg, #4c4c4d 0%, #151515 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.download-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(102, 126, 234, 0.4);
}

.download-btn i {
    font-size: 1.2rem;
}

.file-info {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.file-size, .file-type, .last-updated {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    background: #e2e8f0;
    color: #475569;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .rfc2350-hero {
        padding: 120px 0 40px;
    }
    
    .pdf-preview-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .pdf-preview-toolbar {
        justify-content: center;
    }
    
    .spacer {
        display: none;
    }
    
    .pdf-viewer-container {
        height: 400px;
    }
    
    .file-info {
        gap: 1rem;
    }
    
    .file-size, .file-type, .last-updated {
        font-size: 0.8rem;
        padding: 0.4rem 0.8rem;
    }
}