/* Submissions CSS */
.submissions-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.submissions-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

.submission-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.submission-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.submission-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
    border-radius: 8px;
    background-color: #2a2a2a;
    cursor: pointer;
    transition: opacity 0.3s ease;
}

.submission-image:hover {
    opacity: 0.85;
}

.submission-info {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    flex-grow: 1;
}

.submission-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--primary-color, #4a90e2);
}

.submission-desc {
    font-size: 0.95rem;
    color: var(--text-color, #e0e0e0);
    line-height: 1.5;
    flex-grow: 1;
    word-break: break-all;
}

.submission-date {
    font-size: 0.8rem;
    color: rgba(255, 255, 255, 0.5);
    align-self: flex-end;
}

/* Modal CSS */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.modal-content {
    background: var(--card-bg, rgba(30, 30, 30, 0.9));
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 2.5rem;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 15px 40px rgba(0,0,0,0.5);
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    transition: color 0.2s;
}

.close-modal:hover {
    color: white;
}

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

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.9);
}

.form-group input[type="text"],
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(0, 0, 0, 0.3);
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-group input[type="text"]:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color, #4a90e2);
}

.form-group input[type="file"] {
    width: 100%;
    padding: 0.5rem 0;
    color: rgba(255, 255, 255, 0.8);
}

.image-preview {
    margin-top: 1rem;
    width: 100%;
    height: 200px;
    border-radius: 8px;
    background-size: cover;
    background-position: center;
    border: 2px dashed rgba(255,255,255,0.3);
}

.loading-spinner {
    text-align: center;
    padding: 3rem;
    color: rgba(255, 255, 255, 0.6);
    grid-column: 1 / -1;
    font-size: 1.1rem;
}