:root {
    --gfgd-primary: #000;
    --gfgd-bg: #f8fafc;
    --gfgd-card-bg: #ffffff;
    --gfgd-text-main: #1e293b;
    --gfgd-text-muted: #64748b;
    --gfgd-border: #000;
}

.gfgd-upload-container {
    background: var(--gfgd-card-bg);
    padding: 2rem;
    border-radius: 24px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    margin: 0 auto;
}

.gfgd-drop-zone {
    width: 100%;
    height: 250px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    border: 2px dashed var(--gfgd-border);
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-sizing: border-box;
    background: #fafafa;
}

.gfgd-drop-zone:hover {
    border-color: var(--gfgd-primary);
    background: #f5f7ff;
}

.gfgd-drop-zone--over {
    border-color: var(--gfgd-primary);
    background: #eff6ff;
    transform: scale(1.02);
}

.gfgd-drop-zone__icon {
    width: 64px;
    height: 64px;
    background: #eef2ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
    color: var(--gfgd-primary);
    transition: 0.3s;
}

.gfgd-drop-zone--over .gfgd-drop-zone__icon {
    transform: translateY(-10px);
    background: var(--gfgd-primary);
    color: #fff;
}

.gfgd-drop-zone__prompt {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--gfgd-text-main);
}

.gfgd-drop-zone__prompt strong {
    color: var(--gfgd-primary);
}

.gfgd-drop-zone__note {
    font-size: 0.85rem;
    color: var(--gfgd-text-muted);
    margin-top: 0.5rem;
}

.gfgd-drop-zone__input {
    display: none;
}

.gfgd-file-details {
    display: none;
    padding: 20px;
}

.gfgd-file-details.show {
    display: block;
}

.gfgd-file-item {
    padding: 10px 0;
    border-bottom: 1px solid #e2e8f0;
}

.gfgd-file-item:last-child {
    border-bottom: none;
}

.gfgd-file-item__name {
    font-weight: 600;
    color: var(--gfgd-text-main);
    word-break: break-all;
    margin-bottom: 4px;
    font-size: 0.95rem;
}

.gfgd-file-item__meta {
    display: flex;
    gap: 16px;
    font-size: 0.8rem;
    color: var(--gfgd-text-muted);
}

.gfgd-clear-btn {
    margin-top: 12px;
    padding: 8px 16px;
    background: var(--gfgd-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    transition: opacity 0.2s;
}

.gfgd-clear-btn:hover {
    opacity: 0.9;
}

.gfgd-drop-zone__content {
    display: flex;
    flex-direction: column;
}