/* File Input - Görünür ama gizli değil */
.file-input {
    position: absolute;
    opacity: 0;
    width: 0.1px;
    height: 0.1px;
    pointer-events: none;
}

/* Select File Button */
.upload-btn {
    background: transparent;
    color: var(--neon-primary);
    border: 2px solid var(--neon-primary);
    padding: 15px 40px;
    border-radius: 50px;
    cursor: pointer;
    font-size: 18px;
    font-family: 'Courier New', monospace;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    margin-top: 15px;
}

.upload-btn:hover:not(:disabled) {
    background: var(--neon-primary);
    color: var(--neon-bg);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.4);
    transform: translateY(-3px);
}

.upload-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--neon-border);
    border-radius: 12px;
    padding: 40px 30px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: rgba(0, 240, 255, 0.03);
    position: relative;
}

.upload-zone:hover:not(.has-file) {
    border-color: var(--neon-primary);
    background: rgba(0, 240, 255, 0.08);
    box-shadow: 0 0 40px rgba(0, 240, 255, 0.15);
}

.upload-zone.drag-over {
    border-color: var(--neon-secondary);
    background: rgba(255, 107, 255, 0.1);
    box-shadow: 0 0 60px rgba(255, 107, 255, 0.2);
    transform: scale(1.02);
}