.forum-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 40px 20px;
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    border-radius: 20px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.forum-header h2 {
    font-size: 24px;
    margin-bottom: 15px;
    color: #2c3e50;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(255,255,255,0.8);
}

.forum-header p {
    color: #666;
    font-size: 16px;
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(255,255,255,0.7);
    padding: 10px 15px;
    border-radius: 15px;
}

.blueprint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.blueprint-card {
    background: #ffffff;
    border-radius: 20px;
    padding: 24px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 2px solid #f0f0f0;
    position: relative;
    overflow: hidden;
}

.blueprint-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,107,139,0.1), transparent);
    transform: rotate(45deg);
    animation: shine 3s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.blueprint-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
    border-color: #ff6b8b;
}

.blueprint-image {
    width: 100%;
    height: 200px;
    background: #fef7ff;
    border-radius: 15px;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: #ff6b8b;
    border: 2px solid #f0f0f0;
    position: relative;
    z-index: 1;
}

.blueprint-title {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 10px;
    color: #2c3e50;
    position: relative;
    z-index: 1;
}

.blueprint-author {
    font-size: 14px;
    color: #666;
    margin-bottom: 15px;
    position: relative;
    z-index: 1;
}

.blueprint-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    background: #fef7ff;
    color: #ff6b8b;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid #ffc1cc;
    position: relative;
    z-index: 1;
}

.blueprint-actions {
    display: flex;
    gap: 10px;
}

.action-btn {
    flex: 1;
    padding: 12px;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2c3e50;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    z-index: 1;
}

.action-btn:hover {
    background: linear-gradient(135deg, #ff9a9e 0%, #fad0c4 100%);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,107,139,0.3);
}

.upload-section {
    background: #f9f9f9;
    border-radius: 12px;
    padding: 30px;
    margin-bottom: 60px;
    border: 2px dashed #e0e0e0;
}

.upload-section h3 {
    text-align: center;
    margin-bottom: 25px;
    color: #2c3e50;
    font-weight: 500;
}

.upload-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 500;
    color: #555;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 12px;
    border: 1px solid #e0e0e0;
    border-radius: 6px;
    font-size: 14px;
    transition: border-color 0.3s ease;
    width: 100%;
    box-sizing: border-box;
}

.form-group select {
    background-color: white;
    cursor: pointer;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.upload-btn {
    padding: 15px;
    background: #3498db;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);
}

.upload-success {
    text-align: center;
    padding: 40px 20px;
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    border-radius: 20px;
    margin: 0 20px 30px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.upload-success h3 {
    margin-bottom: 15px;
    color: #27ae60;
    font-size: 20px;
    font-weight: 600;
    text-shadow: 1px 1px 2px rgba(255,255,255,0.8);
}

.upload-success p {
    color: #666;
    font-size: 16px;
    line-height: 1.6;
    background-color: rgba(255,255,255,0.7);
    padding: 10px 15px;
    border-radius: 15px;
    max-width: 600px;
    margin: 0 auto;
}