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

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #2c3e50;
    color: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    color: white;
    text-decoration: none;
    font-size: 1.8rem;
    font-weight: bold;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: background-color 0.3s;
}

.main-nav a:hover {
    background-color: #34495e;
    border-radius: 4px;
}

.login-group {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.3rem;
}

.forgot-link {
    font-size: 0.85rem;
    padding: 0 !important;
}

main {
    flex: 1;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.home-main {
    padding: 3rem 2rem;
}

.categories-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    max-width: 800px;
    margin: 0 auto;
}

.category-link {
    display: block;
    padding: 1.2rem;
    background-color: #ecf0f1;
    color: #2c3e50;
    text-decoration: none;
    border-radius: 8px;
    text-align: center;
    font-weight: 500;
    transition: all 0.3s;
    border: 2px solid transparent;
}

.category-link:hover {
    background-color: #3498db;
    color: white;
    border-color: #2980b9;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}

.page-title {
    text-align: center;
    margin-bottom: 2rem;
    color: #2c3e50;
}

.item-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.item-link {
    display: block;
    padding: 1rem;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 6px;
    text-decoration: none;
    color: #2c3e50;
    transition: all 0.3s;
}

.item-link:hover {
    background-color: #f8f9fa;
    border-color: #3498db;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.item-post-container {
    max-width: 900px;
    margin: 0 auto;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.image-block {
    width: 400px;
    height: 400px;
    background-color: #f0f0f0;
    border: 2px solid #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.image-block img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.description-section {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.reply-section {
    margin: 2rem 0;
}

.btn {
    padding: 0.8rem 2rem;
    font-size: 1rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background-color: #3498db;
    color: white;
}

.btn-primary:hover {
    background-color: #2980b9;
}

.btn-secondary {
    background-color: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background-color: #7f8c8d;
}

.proxy-email-popup {
    display: none;
    margin-top: 1rem;
    padding: 1.5rem;
    background-color: #fff;
    border: 2px solid #3498db;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.proxy-email-popup.show {
    display: block;
}

.proxy-email {
    padding: 1rem;
    background-color: #ecf0f1;
    border-radius: 4px;
    margin: 1rem 0;
    font-family: monospace;
    word-break: break-all;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #2c3e50;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    font-family: inherit;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.upload-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 1rem 0;
}

.upload-block {
    width: 200px;
    height: 200px;
    border: 2px dashed #ddd;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #f8f9fa;
    position: relative;
    overflow: hidden;
}

.upload-block input[type="file"] {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.upload-block img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.submission-options {
    background-color: #f8f9fa;
    padding: 2rem;
    border-radius: 8px;
    margin: 2rem 0;
}

.option-item {
    padding: 1rem;
    margin: 1rem 0;
    background-color: white;
    border: 2px solid #ddd;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.option-item input[type="radio"] {
    width: 20px;
    height: 20px;
}

.option-item label {
    flex: 1;
    cursor: pointer;
}

.error-message {
    color: #e74c3c;
    background-color: #fadbd8;
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0;
}

.success-message {
    color: #27ae60;
    background-color: #d4edda;
    padding: 1rem;
    border-radius: 4px;
    margin: 1rem 0;
}

footer {
    background-color: #34495e;
    color: white;
    padding: 2rem;
    margin-top: auto;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.footer-container a {
    color: white;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-container a:hover {
    color: #3498db;
}

@media (max-width: 768px) {
    .categories-container {
        grid-template-columns: 1fr;
    }
    
    .header-container {
        flex-direction: column;
        gap: 1rem;
    }
    
    .main-nav {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .image-gallery {
        grid-template-columns: 1fr;
    }
    
    .image-block {
        width: 100%;
        max-width: 400px;
        margin: 0 auto;
    }
}