/* --- DROP ZONE STYLES --- */
.drop-zone {
    border: 2px dashed rgba(var(--overlay0-rgb, 110, 115, 141), 0.5);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    margin-bottom: 2rem; /* Default margin when used outside modal */
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: linear-gradient(135deg, 
        rgba(var(--surface0-rgb), 0.4), 
        rgba(var(--surface1-rgb), 0.2)
    );
    backdrop-filter: blur(10px);
    color: var(--subtext0);
    position: relative;
    overflow: hidden;
}

.drop-zone::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, 
        rgba(var(--mauve-rgb), 0.05), 
        rgba(var(--blue-rgb), 0.03)
    );
    border-radius: 12px;
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.drop-zone.active {
    border-color: var(--blue);
    background: linear-gradient(135deg, 
        rgba(var(--blue-rgb), 0.15), 
        rgba(var(--mauve-rgb), 0.1)
    );
    transform: scale(1.02) rotateZ(1deg);
    box-shadow: 0 8px 25px rgba(var(--blue-rgb), 0.2);
}

.drop-zone.active::before {
    opacity: 1;
}

.drop-zone.loading,
.drop-zone.error {
    padding: 2.5rem 1.5rem; /* Consistent padding for states */
}

.drop-zone.loading i,
.drop-zone.error i {
    display: block;
    margin-bottom: 1rem;
    font-size: 2.5rem; /* Slightly smaller icons */
}

.drop-zone.loading i {
    color: var(--blue);
}

.drop-zone.error {
    border-color: var(--red);
    background-color: rgba(var(--red-rgb), 0.1);
}
.drop-zone.error i {
    color: var(--red);
}
.drop-zone.error p {
    color: var(--red);
    font-weight: 500;
}


.drop-zone p {
    margin-bottom: 0.75rem; /* Increased spacing */
    font-size: 0.95rem;
}
.drop-zone p:last-of-type {
    margin-bottom: 1rem; /* More space before button */
}


.drop-zone .drop-zone-icon { /* Class for the main icon */
    color: var(--mauve);
    margin-bottom: 1rem;
    font-size: 3rem;
    opacity: 0.8;
    transition: transform 0.3s ease, color 0.3s ease;
    display: block; /* Ensure it's block for margin auto */
}

.drop-zone:not(.loading):not(.error):hover .drop-zone-icon {
    transform: translateY(-5px) scale(1.1);
    color: var(--pink);
    opacity: 1;
}

.file-input-label {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--mauve), var(--blue));
    color: var(--base);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 500;
    box-shadow: 0 4px 12px rgba(var(--mauve-rgb), 0.3);
    font-size: 0.95rem;
    position: relative;
    overflow: hidden;
}

.file-input-label::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.file-input-label:hover {
    background: linear-gradient(135deg, var(--pink), var(--mauve));
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 20px rgba(var(--mauve-rgb), 0.4);
}

.file-input-label:hover::before {
    left: 100%;
}

.file-input-label i {
    margin-right: 0.5rem;
}